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yelvlab 2024-09-20 17:03:48 +08:00
parent 7b23ae3c40
commit 439d6579f0
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3
.gitignore vendored Normal file
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/cmake-build-debug/
/.idea/
/cmake-*/

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CMakeLists.txt Normal file
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cmake_minimum_required(VERSION 3.28)
include(cmake/toolchain.cmake)
project(gd32e23_template)
enable_language(C)
enable_language(CXX)
enable_language(ASM)
# Use custom startup.S
set(TARGET_STARTUP_ASM ${CMAKE_SOURCE_DIR}/startup/startup_gd32e23x.S)
# Use custom linker script
set(TARGET_LD_SCRIPT ${CMAKE_SOURCE_DIR}/ld/gd_e230f4_gcc.ld)
# Add GD SDK
add_subdirectory(sdk)
set(TARGET_C_SRC
${CMAKE_SOURCE_DIR}/src/main.c
${CMAKE_SOURCE_DIR}/src/gd32e23x_it.c
${CMAKE_SOURCE_DIR}/src/systick.c
)
add_executable(gd32e23_template ${TARGET_C_SRC})
target_link_libraries(gd32e23_template GD32E23X_SDK)
target_include_directories(gd32e23_template PUBLIC inc)
# Generate .bin and .hex
generate_binary_file(gd32e23_template)
generate_hex_file(gd32e23_template)

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if(NOT TOOLCHAIN_PATH)
if(DEFINED ENV{TOOLCHAIN_PATH})
message(STATUS "Detected toolchain path TOOLCHAIN_PATH in environmental variables: " $ENV{TOOLCHAIN_PATH})
set(TOOLCHAIN_PATH $ENV{TOOLCHAIN_PATH})
else()
if(NOT CMAKE_C_COMPILER)
set(TOOLCHAIN_PATH "/usr")
message(STATUS "No TOOLCHAIN_PATH specified, using default: " ${TOOLCHAIN_PATH})
else()
# keep only directory of compiler
get_filename_component(TOOLCHAIN_PATH ${CMAKE_C_COMPILER} DIRECTORY)
# remove the last /bin directory
get_filename_component(TOOLCHAIN_PATH ${TOOLCHAIN_PATH} DIRECTORY)
endif()
endif()
file(TO_CMAKE_PATH "${TOOLCHAIN_PATH}" TOOLCHAIN_PATH)
endif()
if(NOT TARGET_TRIPLET)
set(TARGET_TRIPLET "arm-none-eabi")
message(STATUS "No TARGET_TRIPLET specified, using default: " ${TARGET_TRIPLET})
endif()
set(CMAKE_SYSTEM_NAME Generic)
set(TOOLCHAIN_SYSROOT "${TOOLCHAIN_PATH}/${TARGET_TRIPLET}")
set(TOOLCHAIN_BIN_PATH "${TOOLCHAIN_PATH}/bin")
set(TOOLCHAIN_INC_PATH "${TOOLCHAIN_PATH}/${TARGET_TRIPLET}/include")
set(TOOLCHAIN_LIB_PATH "${TOOLCHAIN_PATH}/${TARGET_TRIPLET}/lib")
find_program(CMAKE_OBJCOPY NAMES ${TARGET_TRIPLET}-objcopy HINTS ${TOOLCHAIN_BIN_PATH})
find_program(CMAKE_OBJDUMP NAMES ${TARGET_TRIPLET}-objdump HINTS ${TOOLCHAIN_BIN_PATH})
find_program(CMAKE_SIZE NAMES ${TARGET_TRIPLET}-size HINTS ${TOOLCHAIN_BIN_PATH})
function(print_size_of_target TARGET)
add_custom_target(${TARGET}_always_display_size
ALL COMMAND ${CMAKE_SIZE} "$<TARGET_FILE:${TARGET}>"
COMMENT "Target Sizes: "
DEPENDS ${TARGET}
)
endfunction()
function(_generate_file TARGET OUTPUT_EXTENSION OBJCOPY_BFD_OUTPUT)
get_target_property(TARGET_OUTPUT_NAME ${TARGET} OUTPUT_NAME)
if (TARGET_OUTPUT_NAME)
set(OUTPUT_FILE_NAME "${TARGET_OUTPUT_NAME}.${OUTPUT_EXTENSION}")
else()
set(OUTPUT_FILE_NAME "${TARGET}.${OUTPUT_EXTENSION}")
endif()
get_target_property(RUNTIME_OUTPUT_DIRECTORY ${TARGET} RUNTIME_OUTPUT_DIRECTORY)
if(RUNTIME_OUTPUT_DIRECTORY)
set(OUTPUT_FILE_PATH "${RUNTIME_OUTPUT_DIRECTORY}/${OUTPUT_FILE_NAME}")
else()
set(OUTPUT_FILE_PATH "${OUTPUT_FILE_NAME}")
endif()
add_custom_command(
TARGET ${TARGET}
POST_BUILD
COMMAND ${CMAKE_OBJCOPY} -O ${OBJCOPY_BFD_OUTPUT} "$<TARGET_FILE:${TARGET}>" ${OUTPUT_FILE_PATH}
BYPRODUCTS ${OUTPUT_FILE_PATH}
COMMENT "Generating ${OBJCOPY_BFD_OUTPUT} file ${OUTPUT_FILE_NAME}"
)
endfunction()
function(generate_binary_file TARGET)
_generate_file(${TARGET} "bin" "binary")
endfunction()
function(generate_hex_file TARGET)
_generate_file(${TARGET} "hex" "ihex")
endfunction()
set(CMAKE_EXECUTABLE_SUFFIX_C .elf)
set(CMAKE_EXECUTABLE_SUFFIX_CXX .elf)
set(CMAKE_EXECUTABLE_SUFFIX_ASM .elf)
# This should be safe to set for a bare-metal cross-compiler
set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
# Extra CFlags
set(TARGET_CFLAGS_EXTRA "-Wall -fdata-sections -ffunction-sections -fno-common -fmessage-length=0")
set(TARGET_CXXFLAGS_EXTRA "-Wall -fdata-sections -ffunction-sections -fno-common -fmessage-length=0")
set(TARGET_LDFLAGS_EXTRA "-Wl,--print-memory-usage")
# Device specific settings, goes to CFLAGS and LDFLAGS
set(TARGET_CFLAGS_HARDWARE "-mcpu=cortex-m23 -mfloat-abi=soft -mthumb -mthumb-interwork")
# Conditional flags
# DEBUG
set(CMAKE_C_FLAGS_DEBUG "-DDEBUG=0 -O0 -g")
set(CMAKE_CXX_FLAGS_DEBUG "-DDEBUG=0 -O0 -g")
set(CMAKE_ASM_FLAGS_DEBUG "-DDEBUG=0 -O0 -g")
# RELEASE
set(CMAKE_C_FLAGS_RELEASE "-DNDEBUG -O3") # -flto
set(CMAKE_CXX_FLAGS_RELEASE "-DNDEBUG -O3") # -flto
set(CMAKE_ASM_FLAGS_RELEASE "-DNDEBUG -O3") # -flto
#set(CMAKE_EXE_LINKER_FLAGS_RELEASE "-flto")
# Final compiler flags
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${TARGET_CFLAGS_HARDWARE} ${TARGET_CFLAGS_EXTRA}")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${TARGET_CFLAGS_HARDWARE} ${TARGET_CXXFLAGS_EXTRA}")
set(CMAKE_ASM_FLAGS "${CMAKE_ASM_FLAGS} ${CMAKE_C_FLAGS} -x assembler-with-cpp")
set(CMAKE_EXE_LINKER_FLAGS "-specs=nosys.specs -Wl,--gc-sections ${TARGET_LDFLAGS_EXTRA}")

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/*!
\file gd32e23x_it.h
\brief the header file of the ISR
\version 2024-02-22, V2.1.0, firmware for GD32E23x
*/
/*
Copyright (c) 2024, GigaDevice Semiconductor Inc.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.
*/
#ifndef GD32E23X_IT_H
#define GD32E23X_IT_H
#include "gd32e23x.h"
/* function declarations */
/* this function handles NMI exception */
void NMI_Handler(void);
/* this function handles HardFault exception */
void HardFault_Handler(void);
/* this function handles SVC exception */
void SVC_Handler(void);
/* this function handles PendSV exception */
void PendSV_Handler(void);
/* this function handles SysTick exception */
void SysTick_Handler(void);
#endif /* GD32E23X_IT_H */

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/*!
\file main.h
\brief the header file of main
\version 2024-02-22, V2.1.0, firmware for GD32E23x
*/
/*
Copyright (c) 2024, GigaDevice Semiconductor Inc.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.
*/
#ifndef MAIN_H
#define MAIN_H
/* led spark function */
void led_spark(void);
#endif /* MAIN_H */

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/*!
\file systick.h
\brief the header file of systick
\version 2024-02-22, V2.1.0, firmware for GD32E23x
*/
/*
Copyright (c) 2024, GigaDevice Semiconductor Inc.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.
*/
#ifndef SYSTICK_H
#define SYSTICK_H
#include <stdint.h>
/* configure systick */
void systick_config(void);
/* delay a time in milliseconds */
void delay_1ms(uint32_t count);
/* delay decrement */
void delay_decrement(void);
#endif /* SYSTICK_H */

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/* Entry Point */
ENTRY(Reset_Handler)
/* Highest address of the user mode stack */
_estack = 0x20001800; /* end of 6K RAM */
/* Generate a link error if heap and stack don't fit into RAM */
_Min_Heap_Size = 0x200; /* required amount of heap */
_Min_Stack_Size = 0x400; /* required amount of stack */
/* Specify the memory areas */
MEMORY
{
FLASH (rx) : ORIGIN = 0x08000000, LENGTH = 32K
RAM (xrw) : ORIGIN = 0x20000000, LENGTH = 6K
}
/* Define output sections */
SECTIONS
{
/* The startup code goes first into FLASH */
.isr_vector :
{
. = ALIGN(4);
KEEP(*(.isr_vector)) /* Startup code */
. = ALIGN(4);
} >FLASH
/* The program code and other data goes into FLASH */
.text :
{
. = ALIGN(4);
*(.text) /* .text sections (code) */
*(.text*) /* .text* sections (code) */
*(.glue_7) /* glue arm to thumb code */
*(.glue_7t) /* glue thumb to arm code */
*(.eh_frame)
KEEP (*(.init))
KEEP (*(.fini))
. = ALIGN(4);
_etext = .; /* define a global symbols at end of code */
} >FLASH
/* Constant data goes into FLASH */
.rodata :
{
. = ALIGN(4);
*(.rodata) /* .rodata sections (constants, strings, etc.) */
*(.rodata*) /* .rodata* sections (constants, strings, etc.) */
. = ALIGN(4);
} >FLASH
.ARM.extab : { *(.ARM.extab* .gnu.linkonce.armextab.*) } >FLASH
.ARM : {
__exidx_start = .;
*(.ARM.exidx*)
__exidx_end = .;
} >FLASH
.preinit_array :
{
PROVIDE_HIDDEN (__preinit_array_start = .);
KEEP (*(.preinit_array*))
PROVIDE_HIDDEN (__preinit_array_end = .);
} >FLASH
.init_array :
{
PROVIDE_HIDDEN (__init_array_start = .);
KEEP (*(SORT(.init_array.*)))
KEEP (*(.init_array*))
PROVIDE_HIDDEN (__init_array_end = .);
} >FLASH
.fini_array :
{
PROVIDE_HIDDEN (__fini_array_start = .);
KEEP (*(SORT(.fini_array.*)))
KEEP (*(.fini_array*))
PROVIDE_HIDDEN (__fini_array_end = .);
} >FLASH
/* used by the startup to initialize data */
_sidata = LOADADDR(.data);
/* Initialized data sections goes into RAM, load LMA copy after code */
.data :
{
. = ALIGN(4);
_sdata = .; /* create a global symbol at data start */
*(.data) /* .data sections */
*(.data*) /* .data* sections */
. = ALIGN(4);
_edata = .; /* define a global symbol at data end */
} >RAM AT> FLASH
/* Uninitialized data section */
. = ALIGN(4);
.bss :
{
/* This is used by the startup in order to initialize the .bss secion */
_sbss = .; /* define a global symbol at bss start */
__bss_start__ = _sbss;
*(.bss)
*(.bss*)
*(COMMON)
. = ALIGN(4);
_ebss = .; /* define a global symbol at bss end */
__bss_end__ = _ebss;
} >RAM
/* User_heap_stack section, used to check that there is enough RAM left */
._user_heap_stack :
{
. = ALIGN(4);
PROVIDE ( end = . );
PROVIDE ( _end = . );
. = . + _Min_Heap_Size;
. = . + _Min_Stack_Size;
. = ALIGN(4);
} >RAM
/* Remove information from the standard libraries */
/DISCARD/ :
{
libc.a ( * )
libm.a ( * )
libgcc.a ( * )
}
.ARM.attributes 0 : { *(.ARM.attributes) }
}

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/**************************************************************************//**
* @file cmsis_compiler.h
* @brief CMSIS compiler generic header file
* @version V5.0.4
* @date 10. January 2018
******************************************************************************/
/*
* Copyright (c) 2009-2018 Arm Limited. All rights reserved.
*
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the License); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an AS IS BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef __CMSIS_COMPILER_H
#define __CMSIS_COMPILER_H
#include <stdint.h>
/*
* Arm Compiler 4/5
*/
#if defined ( __CC_ARM )
#include "cmsis_armcc.h"
/*
* Arm Compiler 6 (armclang)
*/
#elif defined (__ARMCC_VERSION) && (__ARMCC_VERSION >= 6010050)
#include "cmsis_armclang.h"
/*
* GNU Compiler
*/
#elif defined ( __GNUC__ )
#include "cmsis_gcc.h"
/*
* IAR Compiler
*/
#elif defined ( __ICCARM__ )
#include <cmsis_iccarm.h>
/*
* TI Arm Compiler
*/
#elif defined ( __TI_ARM__ )
#include <cmsis_ccs.h>
#ifndef __ASM
#define __ASM __asm
#endif
#ifndef __INLINE
#define __INLINE inline
#endif
#ifndef __STATIC_INLINE
#define __STATIC_INLINE static inline
#endif
#ifndef __STATIC_FORCEINLINE
#define __STATIC_FORCEINLINE __STATIC_INLINE
#endif
#ifndef __NO_RETURN
#define __NO_RETURN __attribute__((noreturn))
#endif
#ifndef __USED
#define __USED __attribute__((used))
#endif
#ifndef __WEAK
#define __WEAK __attribute__((weak))
#endif
#ifndef __PACKED
#define __PACKED __attribute__((packed))
#endif
#ifndef __PACKED_STRUCT
#define __PACKED_STRUCT struct __attribute__((packed))
#endif
#ifndef __PACKED_UNION
#define __PACKED_UNION union __attribute__((packed))
#endif
#ifndef __UNALIGNED_UINT32 /* deprecated */
struct __attribute__((packed)) T_UINT32 { uint32_t v; };
#define __UNALIGNED_UINT32(x) (((struct T_UINT32 *)(x))->v)
#endif
#ifndef __UNALIGNED_UINT16_WRITE
__PACKED_STRUCT T_UINT16_WRITE { uint16_t v; };
#define __UNALIGNED_UINT16_WRITE(addr, val) (void)((((struct T_UINT16_WRITE *)(void*)(addr))->v) = (val))
#endif
#ifndef __UNALIGNED_UINT16_READ
__PACKED_STRUCT T_UINT16_READ { uint16_t v; };
#define __UNALIGNED_UINT16_READ(addr) (((const struct T_UINT16_READ *)(const void *)(addr))->v)
#endif
#ifndef __UNALIGNED_UINT32_WRITE
__PACKED_STRUCT T_UINT32_WRITE { uint32_t v; };
#define __UNALIGNED_UINT32_WRITE(addr, val) (void)((((struct T_UINT32_WRITE *)(void *)(addr))->v) = (val))
#endif
#ifndef __UNALIGNED_UINT32_READ
__PACKED_STRUCT T_UINT32_READ { uint32_t v; };
#define __UNALIGNED_UINT32_READ(addr) (((const struct T_UINT32_READ *)(const void *)(addr))->v)
#endif
#ifndef __ALIGNED
#define __ALIGNED(x) __attribute__((aligned(x)))
#endif
#ifndef __RESTRICT
#warning No compiler specific solution for __RESTRICT. __RESTRICT is ignored.
#define __RESTRICT
#endif
/*
* TASKING Compiler
*/
#elif defined ( __TASKING__ )
/*
* The CMSIS functions have been implemented as intrinsics in the compiler.
* Please use "carm -?i" to get an up to date list of all intrinsics,
* Including the CMSIS ones.
*/
#ifndef __ASM
#define __ASM __asm
#endif
#ifndef __INLINE
#define __INLINE inline
#endif
#ifndef __STATIC_INLINE
#define __STATIC_INLINE static inline
#endif
#ifndef __STATIC_FORCEINLINE
#define __STATIC_FORCEINLINE __STATIC_INLINE
#endif
#ifndef __NO_RETURN
#define __NO_RETURN __attribute__((noreturn))
#endif
#ifndef __USED
#define __USED __attribute__((used))
#endif
#ifndef __WEAK
#define __WEAK __attribute__((weak))
#endif
#ifndef __PACKED
#define __PACKED __packed__
#endif
#ifndef __PACKED_STRUCT
#define __PACKED_STRUCT struct __packed__
#endif
#ifndef __PACKED_UNION
#define __PACKED_UNION union __packed__
#endif
#ifndef __UNALIGNED_UINT32 /* deprecated */
struct __packed__ T_UINT32 { uint32_t v; };
#define __UNALIGNED_UINT32(x) (((struct T_UINT32 *)(x))->v)
#endif
#ifndef __UNALIGNED_UINT16_WRITE
__PACKED_STRUCT T_UINT16_WRITE { uint16_t v; };
#define __UNALIGNED_UINT16_WRITE(addr, val) (void)((((struct T_UINT16_WRITE *)(void *)(addr))->v) = (val))
#endif
#ifndef __UNALIGNED_UINT16_READ
__PACKED_STRUCT T_UINT16_READ { uint16_t v; };
#define __UNALIGNED_UINT16_READ(addr) (((const struct T_UINT16_READ *)(const void *)(addr))->v)
#endif
#ifndef __UNALIGNED_UINT32_WRITE
__PACKED_STRUCT T_UINT32_WRITE { uint32_t v; };
#define __UNALIGNED_UINT32_WRITE(addr, val) (void)((((struct T_UINT32_WRITE *)(void *)(addr))->v) = (val))
#endif
#ifndef __UNALIGNED_UINT32_READ
__PACKED_STRUCT T_UINT32_READ { uint32_t v; };
#define __UNALIGNED_UINT32_READ(addr) (((const struct T_UINT32_READ *)(const void *)(addr))->v)
#endif
#ifndef __ALIGNED
#define __ALIGNED(x) __align(x)
#endif
#ifndef __RESTRICT
#warning No compiler specific solution for __RESTRICT. __RESTRICT is ignored.
#define __RESTRICT
#endif
/*
* COSMIC Compiler
*/
#elif defined ( __CSMC__ )
#include <cmsis_csm.h>
#ifndef __ASM
#define __ASM _asm
#endif
#ifndef __INLINE
#define __INLINE inline
#endif
#ifndef __STATIC_INLINE
#define __STATIC_INLINE static inline
#endif
#ifndef __STATIC_FORCEINLINE
#define __STATIC_FORCEINLINE __STATIC_INLINE
#endif
#ifndef __NO_RETURN
// NO RETURN is automatically detected hence no warning here
#define __NO_RETURN
#endif
#ifndef __USED
#warning No compiler specific solution for __USED. __USED is ignored.
#define __USED
#endif
#ifndef __WEAK
#define __WEAK __weak
#endif
#ifndef __PACKED
#define __PACKED @packed
#endif
#ifndef __PACKED_STRUCT
#define __PACKED_STRUCT @packed struct
#endif
#ifndef __PACKED_UNION
#define __PACKED_UNION @packed union
#endif
#ifndef __UNALIGNED_UINT32 /* deprecated */
@packed struct T_UINT32 { uint32_t v; };
#define __UNALIGNED_UINT32(x) (((struct T_UINT32 *)(x))->v)
#endif
#ifndef __UNALIGNED_UINT16_WRITE
__PACKED_STRUCT T_UINT16_WRITE { uint16_t v; };
#define __UNALIGNED_UINT16_WRITE(addr, val) (void)((((struct T_UINT16_WRITE *)(void *)(addr))->v) = (val))
#endif
#ifndef __UNALIGNED_UINT16_READ
__PACKED_STRUCT T_UINT16_READ { uint16_t v; };
#define __UNALIGNED_UINT16_READ(addr) (((const struct T_UINT16_READ *)(const void *)(addr))->v)
#endif
#ifndef __UNALIGNED_UINT32_WRITE
__PACKED_STRUCT T_UINT32_WRITE { uint32_t v; };
#define __UNALIGNED_UINT32_WRITE(addr, val) (void)((((struct T_UINT32_WRITE *)(void *)(addr))->v) = (val))
#endif
#ifndef __UNALIGNED_UINT32_READ
__PACKED_STRUCT T_UINT32_READ { uint32_t v; };
#define __UNALIGNED_UINT32_READ(addr) (((const struct T_UINT32_READ *)(const void *)(addr))->v)
#endif
#ifndef __ALIGNED
#warning No compiler specific solution for __ALIGNED. __ALIGNED is ignored.
#define __ALIGNED(x)
#endif
#ifndef __RESTRICT
#warning No compiler specific solution for __RESTRICT. __RESTRICT is ignored.
#define __RESTRICT
#endif
#else
#error Unknown compiler.
#endif
#endif /* __CMSIS_COMPILER_H */

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/**************************************************************************//**
* @file cmsis_version.h
* @brief CMSIS Core(M) Version definitions
* @version V5.0.2
* @date 19. April 2017
******************************************************************************/
/*
* Copyright (c) 2009-2017 ARM Limited. All rights reserved.
*
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the License); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an AS IS BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#if defined ( __ICCARM__ )
#pragma system_include /* treat file as system include file for MISRA check */
#elif defined (__clang__)
#pragma clang system_header /* treat file as system include file */
#endif
#ifndef __CMSIS_VERSION_H
#define __CMSIS_VERSION_H
/* CMSIS Version definitions */
#define __CM_CMSIS_VERSION_MAIN ( 5U) /*!< [31:16] CMSIS Core(M) main version */
#define __CM_CMSIS_VERSION_SUB ( 1U) /*!< [15:0] CMSIS Core(M) sub version */
#define __CM_CMSIS_VERSION ((__CM_CMSIS_VERSION_MAIN << 16U) | \
__CM_CMSIS_VERSION_SUB ) /*!< CMSIS Core(M) version number */
#endif

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sdk/CMSIS/inc/core_cm23.h Normal file
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/*!
\file gd32e23x.h
\brief general definitions for GD32E23x
\version 2023-09-04, V2.0.1, firmware for GD32E23x
*/
/* Copyright (c) 2012 ARM LIMITED
Copyright (c) 2023, GigaDevice Semiconductor Inc.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
- Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
- Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
- Neither the name of ARM nor the names of its contributors may be used
to endorse or promote products derived from this software without
specific prior written permission.
*
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.
---------------------------------------------------------------------------*/
/* This file refers the CMSIS standard, some adjustments are made according to GigaDevice chips */
#ifndef GD32E23X_H
#define GD32E23X_H
#ifdef __cplusplus
extern "C" {
#endif
/* define GD32E23x */
#if !defined (GD32E23x)
#define GD32E23x
#endif /* define GD32E23x */
#if !defined (GD32E23x)
#error "Please select the target GD32E23x device used in your application (in gd32e23x.h file)"
#endif /* undefine GD32E23x tip */
/* define value of high speed crystal oscillator (HXTAL) in Hz */
#if !defined (HXTAL_VALUE)
#define HXTAL_VALUE ((uint32_t)8000000)
#endif /* high speed crystal oscillator value */
/* define startup timeout value of high speed crystal oscillator (HXTAL) */
#if !defined (HXTAL_STARTUP_TIMEOUT)
#define HXTAL_STARTUP_TIMEOUT ((uint16_t)0x0FFFF)
#endif /* high speed crystal oscillator startup timeout */
/* define value of internal 8MHz RC oscillator (IRC8M) in Hz */
#if !defined (IRC8M_VALUE)
#define IRC8M_VALUE ((uint32_t)8000000)
#endif /* internal 8MHz RC oscillator value */
/* define startup timeout value of internal 8MHz RC oscillator (IRC8M) */
#if !defined (IRC8M_STARTUP_TIMEOUT)
#define IRC8M_STARTUP_TIMEOUT ((uint16_t)0x0500)
#endif /* internal 8MHz RC oscillator startup timeout */
/* define value of internal RC oscillator for ADC in Hz */
#if !defined (IRC28M_VALUE)
#define IRC28M_VALUE ((uint32_t)28000000)
#endif /* IRC28M_VALUE */
#if !defined (IRC48M_VALUE)
#define IRC48M_VALUE ((uint32_t)48000000)
#endif /* IRC48M_VALUE */
/* define value of internal 40KHz RC oscillator(IRC40K) in Hz */
#if !defined (IRC40K_VALUE)
#define IRC40K_VALUE ((uint32_t)40000)
#endif /* internal 40KHz RC oscillator value */
/* define value of low speed crystal oscillator (LXTAL)in Hz */
#if !defined (LXTAL_VALUE)
#define LXTAL_VALUE ((uint32_t)32768)
#endif /* low speed crystal oscillator value */
/* GD32E23x firmware library version number V1.0 */
#define __GD32E23x_STDPERIPH_VERSION_MAIN (0x01) /*!< [31:24] main version */
#define __GD32E23x_STDPERIPH_VERSION_SUB1 (0x00) /*!< [23:16] sub1 version */
#define __GD32E23x_STDPERIPH_VERSION_SUB2 (0x00) /*!< [15:8] sub2 version */
#define __GD32E23x_STDPERIPH_VERSION_RC (0x00) /*!< [7:0] release candidate */
#define __GD32E23x_STDPERIPH_VERSION ((__GD32E23x_STDPERIPH_VERSION_MAIN << 24)\
|(__GD32E23x_STDPERIPH_VERSION_SUB1 << 16)\
|(__GD32E23x_STDPERIPH_VERSION_SUB2 << 8)\
|(__GD32E23x_STDPERIPH_VERSION_RC))
/* configuration of the Cortex-M23 processor and core peripherals */
#define __CM23_REV 0x0100U /*!< Core revision r1p0 */
#define __SAUREGION_PRESENT 0U /*!< SAU regions are not present */
#define __MPU_PRESENT 0U /*!< MPU is present */
#define __VTOR_PRESENT 1U /*!< VTOR is present */
#define __NVIC_PRIO_BITS 2U /*!< Number of Bits used for Priority Levels */
#define __Vendor_SysTickConfig 0U /*!< Set to 1 if different SysTick Config is used */
/* define interrupt number */
typedef enum IRQn
{
/* Cortex-M23 processor exceptions numbers */
NonMaskableInt_IRQn = -14, /*!< non maskable interrupt */
HardFault_IRQn = -13, /*!< hardfault interrupt */
SVCall_IRQn = -5, /*!< sv call interrupt */
PendSV_IRQn = -2, /*!< pend sv interrupt */
SysTick_IRQn = -1, /*!< system tick interrupt */
/* interruput numbers */
WWDGT_IRQn = 0, /*!< window watchdog timer interrupt */
LVD_IRQn = 1, /*!< LVD through EXTI line detect interrupt */
RTC_IRQn = 2, /*!< RTC through EXTI line interrupt */
FMC_IRQn = 3, /*!< FMC interrupt */
RCU_IRQn = 4, /*!< RCU interrupt */
EXTI0_1_IRQn = 5, /*!< EXTI line 0 and 1 interrupts */
EXTI2_3_IRQn = 6, /*!< EXTI line 2 and 3 interrupts */
EXTI4_15_IRQn = 7, /*!< EXTI line 4 to 15 interrupts */
DMA_Channel0_IRQn = 9, /*!< DMA channel 0 interrupt */
DMA_Channel1_2_IRQn = 10, /*!< DMA channel 1 and channel 2 interrupts */
DMA_Channel3_4_IRQn = 11, /*!< DMA channel 3 and channel 4 interrupts */
ADC_CMP_IRQn = 12, /*!< ADC, CMP interrupts */
TIMER0_BRK_UP_TRG_COM_IRQn = 13, /*!< TIMER0 break, update, trigger and commutation interrupts */
TIMER0_Channel_IRQn = 14, /*!< TIMER0 channel capture compare interrupts */
TIMER2_IRQn = 16, /*!< TIMER2 interrupt */
TIMER5_IRQn = 17, /*!< TIMER5 interrupt */
TIMER13_IRQn = 19, /*!< TIMER13 interrupt */
TIMER14_IRQn = 20, /*!< TIMER14 interrupt */
TIMER15_IRQn = 21, /*!< TIMER15 interrupt */
TIMER16_IRQn = 22, /*!< TIMER16 interrupt */
I2C0_EV_IRQn = 23, /*!< I2C0 event interrupt */
I2C1_EV_IRQn = 24, /*!< I2C1 event interrupt */
SPI0_IRQn = 25, /*!< SPI0 interrupt */
SPI1_IRQn = 26, /*!< SPI1 interrupt */
USART0_IRQn = 27, /*!< USART0 interrupt */
USART1_IRQn = 28, /*!< USART1 interrupt */
I2C0_ER_IRQn = 32, /*!< I2C0 error interrupt */
I2C1_ER_IRQn = 34, /*!< I2C1 error interrupt */
} IRQn_Type;
/* includes */
#include "core_cm23.h"
#include "system_gd32e23x.h"
#include <stdint.h>
/* enum definitions */
typedef enum {DISABLE = 0, ENABLE = !DISABLE} EventStatus, ControlStatus;
typedef enum {RESET = 0, SET = !RESET} FlagStatus;
typedef enum {ERROR = 0, SUCCESS = !ERROR} ErrStatus;
/* bit operations */
#define REG32(addr) (*(volatile uint32_t *)(uint32_t)(addr))
#define REG16(addr) (*(volatile uint16_t *)(uint32_t)(addr))
#define REG8(addr) (*(volatile uint8_t *)(uint32_t)(addr))
#define BIT(x) ((uint32_t)((uint32_t)0x01U<<(x)))
#define BITS(start, end) ((0xFFFFFFFFUL << (start)) & (0xFFFFFFFFUL >> (31U - (uint32_t)(end))))
#define GET_BITS(regval, start, end) (((regval) & BITS((start),(end))) >> (start))
/* main flash and SRAM memory map */
#define FLASH_BASE ((uint32_t)0x08000000U) /*!< main FLASH base address */
#define SRAM_BASE ((uint32_t)0x20000000U) /*!< SRAM base address */
/* SRAM and peripheral base bit-band region */
#define SRAM_BB_BASE ((uint32_t)0x22000000U) /*!< SRAM bit-band base address */
#define PERIPH_BB_BASE ((uint32_t)0x42000000U) /*!< peripheral bit-band base address */
/* peripheral memory map */
#define APB1_BUS_BASE ((uint32_t)0x40000000U) /*!< apb1 base address */
#define APB2_BUS_BASE ((uint32_t)0x40010000U) /*!< apb2 base address */
#define AHB1_BUS_BASE ((uint32_t)0x40020000U) /*!< ahb1 base address */
#define AHB2_BUS_BASE ((uint32_t)0x48000000U) /*!< ahb2 base address */
/* advanced peripheral bus 1 memory map */
#define TIMER_BASE (APB1_BUS_BASE + 0x00000000U) /*!< TIMER base address */
#define RTC_BASE (APB1_BUS_BASE + 0x00002800U) /*!< RTC base address */
#define WWDGT_BASE (APB1_BUS_BASE + 0x00002C00U) /*!< WWDGT base address */
#define FWDGT_BASE (APB1_BUS_BASE + 0x00003000U) /*!< FWDGT base address */
#define SPI_BASE (APB1_BUS_BASE + 0x00003800U) /*!< SPI base address */
#define USART_BASE (APB1_BUS_BASE + 0x00004400U) /*!< USART base address */
#define I2C_BASE (APB1_BUS_BASE + 0x00005400U) /*!< I2C base address */
#define PMU_BASE (APB1_BUS_BASE + 0x00007000U) /*!< PMU base address */
/* advanced peripheral bus 2 memory map */
#define SYSCFG_BASE (APB2_BUS_BASE + 0x00000000U) /*!< SYSCFG base address */
#define CMP_BASE (APB2_BUS_BASE + 0x0000001CU) /*!< CMP base address */
#define EXTI_BASE (APB2_BUS_BASE + 0x00000400U) /*!< EXTI base address */
#define ADC_BASE (APB2_BUS_BASE + 0x00002400U) /*!< ADC base address */
/* advanced high performance bus 1 memory map */
#define DMA_BASE (AHB1_BUS_BASE + 0x00000000U) /*!< DMA base address */
#define DMA_CHANNEL_BASE (DMA_BASE + 0x00000008U) /*!< DMA channel base address */
#define RCU_BASE (AHB1_BUS_BASE + 0x00001000U) /*!< RCU base address */
#define FMC_BASE (AHB1_BUS_BASE + 0x00002000U) /*!< FMC base address */
#define CRC_BASE (AHB1_BUS_BASE + 0x00003000U) /*!< CRC base address */
/* advanced high performance bus 2 memory map */
#define GPIO_BASE (AHB2_BUS_BASE + 0x00000000U) /*!< GPIO base address */
/* option byte and debug memory map */
#define OB_BASE ((uint32_t)0x1FFFF800U) /*!< OB base address */
#define DBG_BASE ((uint32_t)0x40015800U) /*!< DBG base address */
#include "gd32e23x_libopt.h"
#ifdef __cplusplus
}
#endif
#endif /* GD32E23X_H */

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/*!
\file system_gd32e23x.h
\brief CMSIS Cortex-M23 Device Peripheral Access Layer Header File for
GD32E23x Device Series
*/
/* Copyright (c) 2012 ARM LIMITED
Copyright (c) 2023, GigaDevice Semiconductor Inc.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
- Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
- Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
- Neither the name of ARM nor the names of its contributors may be used
to endorse or promote products derived from this software without
specific prior written permission.
*
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.
---------------------------------------------------------------------------*/
/* This file refers the CMSIS standard, some adjustments are made according to GigaDevice chips */
#ifndef SYSTEM_GD32E23X_H
#define SYSTEM_GD32E23X_H
#ifdef __cplusplus
extern "C" {
#endif
#include <stdint.h>
/* system clock frequency (core clock) */
extern uint32_t SystemCoreClock;
/* function declarations */
/* initialize the system and update the SystemCoreClock variable */
extern void SystemInit (void);
/* update the SystemCoreClock with current core clock retrieved from cpu registers */
extern void SystemCoreClockUpdate (void);
#ifdef __cplusplus
}
#endif
#endif /* SYSTEM_GD32E23X_H */

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/* Support files for GNU libc. Files in the system namespace go here.
Files in the C namespace (ie those that do not start with an
underscore) go in .c. */
#include <_ansi.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/fcntl.h>
#include <stdio.h>
#include <string.h>
#include <time.h>
#include <sys/time.h>
#include <sys/times.h>
#include <errno.h>
#include <reent.h>
#include <unistd.h>
#include <sys/wait.h>
#undef errno
extern int errno;
extern int __io_putchar(int ch) __attribute__((weak));
extern int __io_getchar(void) __attribute__((weak));
caddr_t _sbrk(int incr)
{
extern char _end[];
extern char _heap_end[];
static char *curbrk = _end;
if ((curbrk + incr < _end) || (curbrk + incr > _heap_end))
return NULL - 1;
curbrk += incr;
return curbrk - incr;
}
/*
* _gettimeofday primitive (Stub function)
* */
int _gettimeofday (struct timeval * tp, struct timezone * tzp)
{
/* Return fixed data for the timezone. */
if (tzp)
{
tzp->tz_minuteswest = 0;
tzp->tz_dsttime = 0;
}
return 0;
}
void initialise_monitor_handles()
{
}
int _getpid(void)
{
return 1;
}
int _kill(int pid, int sig)
{
errno = EINVAL;
return -1;
}
void _exit (int status)
{
_kill(status, -1);
while (1) {}
}
int _write(int file, char *ptr, int len)
{
int DataIdx;
for (DataIdx = 0; DataIdx < len; DataIdx++)
{
__io_putchar( *ptr++ );
}
return len;
}
int _close(int file)
{
return -1;
}
int _fstat(int file, struct stat *st)
{
st->st_mode = S_IFCHR;
return 0;
}
int _isatty(int file)
{
return 1;
}
int _lseek(int file, int ptr, int dir)
{
return 0;
}
int _read(int file, char *ptr, int len)
{
int DataIdx;
for (DataIdx = 0; DataIdx < len; DataIdx++)
{
*ptr++ = __io_getchar();
}
return len;
}
int _open(char *path, int flags, ...)
{
/* Pretend like we always fail */
return -1;
}
int _wait(int *status)
{
errno = ECHILD;
return -1;
}
int _unlink(char *name)
{
errno = ENOENT;
return -1;
}
int _times(struct tms *buf)
{
return -1;
}
int _stat(char *file, struct stat *st)
{
st->st_mode = S_IFCHR;
return 0;
}
int _link(char *old, char *new)
{
errno = EMLINK;
return -1;
}
int _fork(void)
{
errno = EAGAIN;
return -1;
}
int _execve(char *name, char **argv, char **env)
{
errno = ENOMEM;
return -1;
}

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/*!
\file system_gd32e23x.c
\brief CMSIS Cortex-M23 Device Peripheral Access Layer Source File for
GD32E23x Device Series
*/
/* Copyright (c) 2012 ARM LIMITED
Copyright (c) 2023, GigaDevice Semiconductor Inc.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
- Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
- Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
- Neither the name of ARM nor the names of its contributors may be used
to endorse or promote products derived from this software without
specific prior written permission.
*
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.
---------------------------------------------------------------------------*/
/* This file refers the CMSIS standard, some adjustments are made according to GigaDevice chips */
#include "gd32e23x.h"
/* system frequency define */
#define __IRC8M (IRC8M_VALUE) /* internal 8 MHz RC oscillator frequency */
#define __HXTAL (HXTAL_VALUE) /* high speed crystal oscillator frequency */
#define __SYS_OSC_CLK (__IRC8M) /* main oscillator frequency */
#define VECT_TAB_OFFSET (uint32_t)0x00 /* vector table base offset */
/* select a system clock by uncommenting the following line */
//#define __SYSTEM_CLOCK_8M_HXTAL (__HXTAL)
//#define __SYSTEM_CLOCK_8M_IRC8M (__IRC8M)
// #define __SYSTEM_CLOCK_72M_PLL_HXTAL (uint32_t)(72000000)
#define __SYSTEM_CLOCK_72M_PLL_IRC8M_DIV2 (uint32_t)(72000000)
#define RCU_MODIFY(__delay) do{ \
volatile uint32_t i; \
if(0 != __delay){ \
RCU_CFG0 |= RCU_AHB_CKSYS_DIV2; \
for(i=0; i<__delay; i++){ \
} \
RCU_CFG0 |= RCU_AHB_CKSYS_DIV4; \
for(i=0; i<__delay; i++){ \
} \
} \
}while(0)
#define SEL_IRC8M 0x00
#define SEL_HXTAL 0x01
#define SEL_PLL 0x02
/* set the system clock frequency and declare the system clock configuration function */
#ifdef __SYSTEM_CLOCK_8M_HXTAL
uint32_t SystemCoreClock = __SYSTEM_CLOCK_8M_HXTAL;
static void system_clock_8m_hxtal(void);
#elif defined (__SYSTEM_CLOCK_72M_PLL_HXTAL)
uint32_t SystemCoreClock = __SYSTEM_CLOCK_72M_PLL_HXTAL;
static void system_clock_72m_hxtal(void);
#elif defined (__SYSTEM_CLOCK_72M_PLL_IRC8M_DIV2)
uint32_t SystemCoreClock = __SYSTEM_CLOCK_72M_PLL_IRC8M_DIV2;
static void system_clock_72m_irc8m(void);
#else
uint32_t SystemCoreClock = __SYSTEM_CLOCK_8M_IRC8M;
static void system_clock_8m_irc8m(void);
#endif /* __SYSTEM_CLOCK_8M_HXTAL */
/* configure the system clock */
static void system_clock_config(void);
/*!
\brief setup the microcontroller system, initialize the system
\param[in] none
\param[out] none
\retval none
*/
void SystemInit (void)
{
/* enable IRC8M */
RCU_CTL0 |= RCU_CTL0_IRC8MEN;
while(0U == (RCU_CTL0 & RCU_CTL0_IRC8MSTB)){
}
RCU_MODIFY(0x80);
RCU_CFG0 &= ~RCU_CFG0_SCS;
RCU_CTL0 &= ~(RCU_CTL0_HXTALEN | RCU_CTL0_CKMEN | RCU_CTL0_PLLEN | RCU_CTL0_HXTALBPS);
/* reset RCU */
RCU_CFG0 &= ~(RCU_CFG0_SCS | RCU_CFG0_AHBPSC | RCU_CFG0_APB1PSC | RCU_CFG0_APB2PSC |\
RCU_CFG0_ADCPSC | RCU_CFG0_CKOUTSEL | RCU_CFG0_CKOUTDIV | RCU_CFG0_PLLDV);
RCU_CFG0 &= ~(RCU_CFG0_PLLSEL | RCU_CFG0_PLLMF | RCU_CFG0_PLLMF4 | RCU_CFG0_PLLDV);
RCU_CFG1 &= ~(RCU_CFG1_PREDV);
RCU_CFG2 &= ~(RCU_CFG2_USART0SEL | RCU_CFG2_ADCSEL);
RCU_CFG2 &= ~RCU_CFG2_IRC28MDIV;
RCU_CFG2 &= ~RCU_CFG2_ADCPSC2;
RCU_CTL1 &= ~RCU_CTL1_IRC28MEN;
RCU_INT = 0x00000000U;
/* configure system clock */
system_clock_config();
#ifdef VECT_TAB_SRAM
nvic_vector_table_set(NVIC_VECTTAB_RAM,VECT_TAB_OFFSET);
#else
nvic_vector_table_set(NVIC_VECTTAB_FLASH,VECT_TAB_OFFSET);
#endif
}
/*!
\brief configure the system clock
\param[in] none
\param[out] none
\retval none
*/
static void system_clock_config(void)
{
#ifdef __SYSTEM_CLOCK_8M_HXTAL
system_clock_8m_hxtal();
#elif defined (__SYSTEM_CLOCK_72M_PLL_HXTAL)
system_clock_72m_hxtal();
#elif defined (__SYSTEM_CLOCK_72M_PLL_IRC8M_DIV2)
system_clock_72m_irc8m();
#elif defined (__SYSTEM_CLOCK_72M_PLL_IRC48M_DIV2)
system_clock_72m_irc48m();
#else
system_clock_8m_irc8m();
#endif /* __SYSTEM_CLOCK_8M_HXTAL */
}
#ifdef __SYSTEM_CLOCK_8M_HXTAL
/*!
\brief configure the system clock to 8M by HXTAL
\param[in] none
\param[out] none
\retval none
*/
static void system_clock_8m_hxtal(void)
{
uint32_t timeout = 0U;
uint32_t stab_flag = 0U;
/* enable HXTAL */
RCU_CTL0 |= RCU_CTL0_HXTALEN;
/* wait until HXTAL is stable or the startup time is longer than HXTAL_STARTUP_TIMEOUT */
do{
timeout++;
stab_flag = (RCU_CTL0 & RCU_CTL0_HXTALSTB);
}
while((0U == stab_flag) && (HXTAL_STARTUP_TIMEOUT != timeout));
/* if fail */
if(0U == (RCU_CTL0 & RCU_CTL0_HXTALSTB)){
while(1){
}
}
/* HXTAL is stable */
/* AHB = SYSCLK */
RCU_CFG0 |= RCU_AHB_CKSYS_DIV1;
/* APB2 = AHB */
RCU_CFG0 |= RCU_APB2_CKAHB_DIV1;
/* APB1 = AHB */
RCU_CFG0 |= RCU_APB1_CKAHB_DIV1;
/* select HXTAL as system clock */
RCU_CFG0 &= ~RCU_CFG0_SCS;
RCU_CFG0 |= RCU_CKSYSSRC_HXTAL;
/* wait until HXTAL is selected as system clock */
while(RCU_SCSS_HXTAL != (RCU_CFG0 & RCU_CFG0_SCSS)){
}
}
#elif defined (__SYSTEM_CLOCK_72M_PLL_HXTAL)
/*!
\brief configure the system clock to 72M by PLL which selects HXTAL as its clock source
\param[in] none
\param[out] none
\retval none
*/
static void system_clock_72m_hxtal(void)
{
uint32_t timeout = 0U;
uint32_t stab_flag = 0U;
/* enable HXTAL */
RCU_CTL0 |= RCU_CTL0_HXTALEN;
/* wait until HXTAL is stable or the startup time is longer than HXTAL_STARTUP_TIMEOUT */
do{
timeout++;
stab_flag = (RCU_CTL0 & RCU_CTL0_HXTALSTB);
}
while((0U == stab_flag) && (HXTAL_STARTUP_TIMEOUT != timeout));
/* if fail */
if(0U == (RCU_CTL0 & RCU_CTL0_HXTALSTB)){
while(1){
}
}
FMC_WS = (FMC_WS & (~FMC_WS_WSCNT)) | WS_WSCNT_2;
/* HXTAL is stable */
/* AHB = SYSCLK */
RCU_CFG0 |= RCU_AHB_CKSYS_DIV1;
/* APB2 = AHB */
RCU_CFG0 |= RCU_APB2_CKAHB_DIV1;
/* APB1 = AHB */
RCU_CFG0 |= RCU_APB1_CKAHB_DIV1;
/* PLL = HXTAL * 9 = 72 MHz */
RCU_CFG0 &= ~(RCU_CFG0_PLLSEL | RCU_CFG0_PLLMF | RCU_CFG0_PLLDV);
RCU_CFG0 |= (RCU_PLLSRC_HXTAL | RCU_PLL_MUL9);
/* enable PLL */
RCU_CTL0 |= RCU_CTL0_PLLEN;
/* wait until PLL is stable */
while(0U == (RCU_CTL0 & RCU_CTL0_PLLSTB)){
}
/* select PLL as system clock */
RCU_CFG0 &= ~RCU_CFG0_SCS;
RCU_CFG0 |= RCU_CKSYSSRC_PLL;
/* wait until PLL is selected as system clock */
while(RCU_SCSS_PLL != (RCU_CFG0 & RCU_CFG0_SCSS)){
}
}
#elif defined (__SYSTEM_CLOCK_72M_PLL_IRC8M_DIV2)
/*!
\brief configure the system clock to 72M by PLL which selects IRC8M/2 as its clock source
\param[in] none
\param[out] none
\retval none
*/
static void system_clock_72m_irc8m(void)
{
uint32_t timeout = 0U;
uint32_t stab_flag = 0U;
/* enable IRC8M */
RCU_CTL0 |= RCU_CTL0_IRC8MEN;
/* wait until IRC8M is stable or the startup time is longer than IRC8M_STARTUP_TIMEOUT */
do{
timeout++;
stab_flag = (RCU_CTL0 & RCU_CTL0_IRC8MSTB);
}
while((0U == stab_flag) && (IRC8M_STARTUP_TIMEOUT != timeout));
/* if fail */
if(0U == (RCU_CTL0 & RCU_CTL0_IRC8MSTB)){
while(1){
}
}
FMC_WS = (FMC_WS & (~FMC_WS_WSCNT)) | WS_WSCNT_2;
/* AHB = SYSCLK */
RCU_CFG0 |= RCU_AHB_CKSYS_DIV1;
/* APB2 = AHB */
RCU_CFG0 |= RCU_APB2_CKAHB_DIV1;
/* APB1 = AHB */
RCU_CFG0 |= RCU_APB1_CKAHB_DIV1;
/* PLL = (IRC8M/2) * 18 = 72 MHz */
RCU_CFG0 &= ~(RCU_CFG0_PLLSEL | RCU_CFG0_PLLMF);
RCU_CFG0 |= (RCU_PLLSRC_IRC8M_DIV2 | RCU_PLL_MUL18);
/* enable PLL */
RCU_CTL0 |= RCU_CTL0_PLLEN;
/* wait until PLL is stable */
while(0U == (RCU_CTL0 & RCU_CTL0_PLLSTB)){
}
/* select PLL as system clock */
RCU_CFG0 &= ~RCU_CFG0_SCS;
RCU_CFG0 |= RCU_CKSYSSRC_PLL;
/* wait until PLL is selected as system clock */
while(RCU_SCSS_PLL != (RCU_CFG0 & RCU_CFG0_SCSS)){
}
}
#else
/*!
\brief configure the system clock to 8M by IRC8M
\param[in] none
\param[out] none
\retval none
*/
static void system_clock_8m_irc8m(void)
{
/* AHB = SYSCLK */
RCU_CFG0 |= RCU_AHB_CKSYS_DIV1;
/* APB2 = AHB */
RCU_CFG0 |= RCU_APB2_CKAHB_DIV1;
/* APB1 = AHB */
RCU_CFG0 |= RCU_APB1_CKAHB_DIV1;
/* select IRC8M as system clock */
RCU_CFG0 &= ~RCU_CFG0_SCS;
RCU_CFG0 |= RCU_CKSYSSRC_IRC8M;
/* wait until IRC8M is selected as system clock */
while(RCU_SCSS_IRC8M != (RCU_CFG0 & RCU_CFG0_SCSS)){
}
}
#endif /* __SYSTEM_CLOCK_8M_HXTAL */
/*!
\brief update the SystemCoreClock with current core clock retrieved from cpu registers
\param[in] none
\param[out] none
\retval none
*/
void SystemCoreClockUpdate (void)
{
uint32_t sws = 0U;
uint32_t pllmf = 0U, pllmf4 = 0U, pllsel = 0U, prediv = 0U, idx = 0U, clk_exp = 0U;
/* exponent of AHB clock divider */
const uint8_t ahb_exp[16] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 6, 7, 8, 9};
sws = GET_BITS(RCU_CFG0, 2, 3);
switch(sws){
/* IRC8M is selected as CK_SYS */
case SEL_IRC8M:
SystemCoreClock = IRC8M_VALUE;
break;
/* HXTAL is selected as CK_SYS */
case SEL_HXTAL:
SystemCoreClock = HXTAL_VALUE;
break;
/* PLL is selected as CK_SYS */
case SEL_PLL:
/* get the value of PLLMF[3:0] */
pllmf = GET_BITS(RCU_CFG0, 18, 21);
pllmf4 = GET_BITS(RCU_CFG0, 27, 27);
/* high 16 bits */
if(1U == pllmf4){
pllmf += 17U;
}else if(15U == pllmf){
pllmf = 16U;
}else{
pllmf += 2U;
}
/* PLL clock source selection, HXTAL or IRC8M/2 */
pllsel = GET_BITS(RCU_CFG0, 16, 16);
if(0U != pllsel){
prediv = (GET_BITS(RCU_CFG1, 0, 3) + 1U);
SystemCoreClock = (HXTAL_VALUE / prediv) * pllmf;
}else{
SystemCoreClock = (IRC8M_VALUE >> 1) * pllmf;
}
break;
/* IRC8M is selected as CK_SYS */
default:
SystemCoreClock = IRC8M_VALUE;
break;
}
/* calculate AHB clock frequency */
idx = GET_BITS(RCU_CFG0, 4, 7);
clk_exp = ahb_exp[idx];
SystemCoreClock >>= clk_exp;
}

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sdk/CMakeLists.txt Normal file
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cmake_minimum_required(VERSION 3.10)
set(CMSIS_PATH ${CMAKE_CURRENT_LIST_DIR}/CMSIS)
set(PERIPHERAL_PATH ${CMAKE_CURRENT_LIST_DIR}/GD32E23x_standard_peripheral)
# Peripheral Driver
file(GLOB PERIPHERAL_SRCS ${PERIPHERAL_PATH}/src/*.c)
# CMSIS
set(TARGET_C_SOURCES
${CMSIS_PATH}/src/system_gd32e23x.c
${CMSIS_PATH}/src/syscalls.c
${PERIPHERAL_SRCS}
)
set(TARGET_C_INCLUDES
${CMSIS_PATH}/inc
${PERIPHERAL_PATH}/inc
)
# Shared library and linker script search paths
set(TARGET_LIB_DIRECTORIES
${PERIPHERAL_PATH}/inc
)
if (NOT TARGET_STARTUP_ASM)
set(TARGET_STARTUP_ASM ${CMSIS_PATH}/Startup/startup_gd32e23x.S)
endif ()
message(STATUS "Use startup asm: " ${TARGET_STARTUP_ASM})
if (NOT TARGET_LD_SCRIPT)
message(FATAL_ERROR "Must set TARGET_LD_SCRIPT to locate ld script")
endif ()
message(STATUS "Use LD script: " ${TARGET_LD_SCRIPT})
add_library(GD32E23X_SDK STATIC ${TARGET_C_SOURCES} ${TARGET_STARTUP_ASM})
# Shared sources, includes and definitions
target_compile_definitions(GD32E23X_SDK PUBLIC ${TARGET_C_DEFINES})
target_include_directories(GD32E23X_SDK
PUBLIC ${TARGET_C_INCLUDES}
INTERFACE ${TARGET_C_INCLUDES}
)
target_link_directories(GD32E23X_SDK PUBLIC ${TARGET_LIB_DIRECTORIES})
target_link_libraries(GD32E23X_SDK PUBLIC "c" "m" "nosys")
target_link_options(GD32E23X_SDK
PUBLIC "-T${TARGET_LD_SCRIPT}"
PUBLIC "-Wl,-Map=${CMAKE_CURRENT_BINARY_DIR}/${CMAKE_PROJECT_NAME}.map,--cref"
)

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sdk/GD32E23x_standard_peripheral/Inc/gd32e23x_adc.h Normal file
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/*!
\file gd32e23x_adc.h
\brief definitions for the ADC
\version 2024-02-22, V2.1.0, firmware for GD32E23x
*/
/*
Copyright (c) 2024, GigaDevice Semiconductor Inc.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.
*/
#ifndef GD32E23X_ADC_H
#define GD32E23X_ADC_H
#include "gd32e23x.h"
/* ADC definitions */
#define ADC ADC_BASE
/* registers definitions */
#define ADC_STAT REG32(ADC + 0x00U) /*!< ADC status register */
#define ADC_CTL0 REG32(ADC + 0x04U) /*!< ADC control register 0 */
#define ADC_CTL1 REG32(ADC + 0x08U) /*!< ADC control register 1 */
#define ADC_SAMPT0 REG32(ADC + 0x0CU) /*!< ADC sampling time register 0 */
#define ADC_SAMPT1 REG32(ADC + 0x10U) /*!< ADC sampling time register 1 */
#define ADC_IOFF0 REG32(ADC + 0x14U) /*!< ADC inserted channel data offset register 0 */
#define ADC_IOFF1 REG32(ADC + 0x18U) /*!< ADC inserted channel data offset register 1 */
#define ADC_IOFF2 REG32(ADC + 0x1CU) /*!< ADC inserted channel data offset register 2 */
#define ADC_IOFF3 REG32(ADC + 0x20U) /*!< ADC inserted channel data offset register 3 */
#define ADC_WDHT REG32(ADC + 0x24U) /*!< ADC watchdog high threshold register */
#define ADC_WDLT REG32(ADC + 0x28U) /*!< ADC watchdog low threshold register */
#define ADC_RSQ0 REG32(ADC + 0x2CU) /*!< ADC regular sequence register 0 */
#define ADC_RSQ1 REG32(ADC + 0x30U) /*!< ADC regular sequence register 1 */
#define ADC_RSQ2 REG32(ADC + 0x34U) /*!< ADC regular sequence register 2 */
#define ADC_ISQ REG32(ADC + 0x38U) /*!< ADC inserted sequence register */
#define ADC_IDATA0 REG32(ADC + 0x3CU) /*!< ADC inserted data register 0 */
#define ADC_IDATA1 REG32(ADC + 0x40U) /*!< ADC inserted data register 1 */
#define ADC_IDATA2 REG32(ADC + 0x44U) /*!< ADC inserted data register 2 */
#define ADC_IDATA3 REG32(ADC + 0x48U) /*!< ADC inserted data register 3 */
#define ADC_RDATA REG32(ADC + 0x4CU) /*!< ADC regular data register */
#define ADC_OVSAMPCTL REG32(ADC + 0x80U) /*!< ADC oversampling control register */
/* bits definitions */
/* ADC_STAT */
#define ADC_STAT_WDE BIT(0) /*!< analog watchdog event flag */
#define ADC_STAT_EOC BIT(1) /*!< end of conversion flag */
#define ADC_STAT_EOIC BIT(2) /*!< inserted channel end of conversion flag */
#define ADC_STAT_STIC BIT(3) /*!< inserted channel start flag */
#define ADC_STAT_STRC BIT(4) /*!< regular channel start flag */
/* ADC_CTL0 */
#define ADC_CTL0_WDCHSEL BITS(0,4) /*!< analog watchdog channel select bits */
#define ADC_CTL0_EOCIE BIT(5) /*!< interrupt enable for EOC */
#define ADC_CTL0_WDEIE BIT(6) /*!< analog watchdog interrupt enable */
#define ADC_CTL0_EOICIE BIT(7) /*!< interrupt enable for inserted channels */
#define ADC_CTL0_SM BIT(8) /*!< scan mode */
#define ADC_CTL0_WDSC BIT(9) /*!< when in scan mode, analog watchdog is effective on a single channel */
#define ADC_CTL0_ICA BIT(10) /*!< automatic inserted group conversion */
#define ADC_CTL0_DISRC BIT(11) /*!< discontinuous mode on regular channels */
#define ADC_CTL0_DISIC BIT(12) /*!< discontinuous mode on inserted channels */
#define ADC_CTL0_DISNUM BITS(13,15) /*!< discontinuous mode channel count */
#define ADC_CTL0_IWDEN BIT(22) /*!< analog watchdog enable on inserted channels */
#define ADC_CTL0_RWDEN BIT(23) /*!< analog watchdog enable on regular channels */
#define ADC_CTL0_DRES BITS(24,25) /*!< ADC data resolution */
/* ADC_CTL1 */
#define ADC_CTL1_ADCON BIT(0) /*!< ADC converter on */
#define ADC_CTL1_CTN BIT(1) /*!< continuous conversion */
#define ADC_CTL1_CLB BIT(2) /*!< ADC calibration */
#define ADC_CTL1_RSTCLB BIT(3) /*!< reset calibration */
#define ADC_CTL1_DMA BIT(8) /*!< direct memory access mode */
#define ADC_CTL1_DAL BIT(11) /*!< data alignment */
#define ADC_CTL1_ETSIC BITS(12,14) /*!< external trigger select for inserted channel */
#define ADC_CTL1_ETEIC BIT(15) /*!< external trigger enable for inserted channel */
#define ADC_CTL1_ETSRC BITS(17,19) /*!< external trigger select for regular channel */
#define ADC_CTL1_ETERC BIT(20) /*!< external trigger enable for regular channel */
#define ADC_CTL1_SWICST BIT(21) /*!< start on inserted channel */
#define ADC_CTL1_SWRCST BIT(22) /*!< start on regular channel */
#define ADC_CTL1_TSVREN BIT(23) /*!< enable channel 16 and 17 */
/* ADC_SAMPTx x=0,1 */
#define ADC_SAMPTX_SPTN BITS(0,2) /*!< channel n(n=0..9,16 and 17) sample time selection */
/* ADC_IOFFx x=0..3 */
#define ADC_IOFFX_IOFF BITS(0,11) /*!< data offset for inserted channel x */
/* ADC_WDHT */
#define ADC_WDHT_WDHT BITS(0,11) /*!< analog watchdog high threshold */
/* ADC_WDLT */
#define ADC_WDLT_WDLT BITS(0,11) /*!< analog watchdog low threshold */
/* ADC_RSQx x=0..2 */
#define ADC_RSQX_RSQN BITS(0,4) /*!< n conversion in regular sequence */
#define ADC_RSQ0_RL BITS(20,23) /*!< regular channel sequence length */
/* ADC_ISQ */
#define ADC_ISQ_ISQN BITS(0,4) /*!< n conversion in regular sequence */
#define ADC_ISQ_IL BITS(20,21) /*!< inserted sequence length */
/* ADC_IDATAx x=0..3*/
#define ADC_IDATAX_IDATAN BITS(0,15) /*!< inserted channel x conversion data */
/* ADC_RDATA */
#define ADC_RDATA_RDATA BITS(0,15) /*!< regular channel data */
/* ADC_OVSAMPCTL */
#define ADC_OVSAMPCTL_OVSEN BIT(0) /*!< oversampling enable */
#define ADC_OVSAMPCTL_OVSR BITS(2,4) /*!< oversampling ratio */
#define ADC_OVSAMPCTL_OVSS BITS(5,8) /*!< oversampling shift */
#define ADC_OVSAMPCTL_TOVS BIT(9) /*!< triggered oversampling */
/* constants definitions */
/* ADC flag definitions */
#define ADC_FLAG_WDE ADC_STAT_WDE /*!< analog watchdog event flag */
#define ADC_FLAG_EOC ADC_STAT_EOC /*!< end of group conversion flag */
#define ADC_FLAG_EOIC ADC_STAT_EOIC /*!< end of inserted channel group conversion flag */
#define ADC_FLAG_STIC ADC_STAT_STIC /*!< start flag of inserted channel group */
#define ADC_FLAG_STRC ADC_STAT_STRC /*!< start flag of regular channel group */
/* adc_ctl0 register value */
#define CTL0_DISNUM(regval) (BITS(13,15) & ((uint32_t)(regval) << 13)) /*!< number of conversions in discontinuous mode */
/* ADC special function */
#define ADC_SCAN_MODE ADC_CTL0_SM /*!< scan mode */
#define ADC_INSERTED_CHANNEL_AUTO ADC_CTL0_ICA /*!< inserted channel group convert automatically */
#define ADC_CONTINUOUS_MODE ADC_CTL1_CTN /*!< continuous mode */
/* ADC data alignment */
#define ADC_DATAALIGN_RIGHT ((uint32_t)0x00000000U) /*!< right alignment */
#define ADC_DATAALIGN_LEFT ADC_CTL1_DAL /*!< left alignment */
/* external trigger select for regular channel */
#define CTL1_ETSRC(regval) (BITS(17,19) & ((uint32_t)(regval) << 17))
#define ADC_EXTTRIG_REGULAR_T0_CH0 CTL1_ETSRC(0) /*!< TIMER0 CH0 event select */
#define ADC_EXTTRIG_REGULAR_T0_CH1 CTL1_ETSRC(1) /*!< TIMER0 CH1 event select */
#define ADC_EXTTRIG_REGULAR_T0_CH2 CTL1_ETSRC(2) /*!< TIMER0 CH2 event select */
#define ADC_EXTTRIG_REGULAR_T2_TRGO CTL1_ETSRC(4) /*!< TIMER2 TRGO event select */
#define ADC_EXTTRIG_REGULAR_T14_CH0 CTL1_ETSRC(5) /*!< TIMER14 CH0 event select */
#define ADC_EXTTRIG_REGULAR_EXTI_11 CTL1_ETSRC(6) /*!< external interrupt line 11 */
#define ADC_EXTTRIG_REGULAR_NONE CTL1_ETSRC(7) /*!< software trigger */
/* external trigger select for inserted channel */
#define CTL1_ETSIC(regval) (BITS(12,14) & ((uint32_t)(regval) << 12))
#define ADC_EXTTRIG_INSERTED_T0_TRGO CTL1_ETSIC(0) /*!< TIMER0 TRGO event select */
#define ADC_EXTTRIG_INSERTED_T0_CH3 CTL1_ETSIC(1) /*!< TIMER0 CH3 event select */
#define ADC_EXTTRIG_INSERTED_T2_CH3 CTL1_ETSIC(4) /*!< TIMER2 CH3 event select */
#define ADC_EXTTRIG_INSERTED_T14_TRGO CTL1_ETSIC(5) /*!< TIMER14 TRGO event select */
#define ADC_EXTTRIG_INSERTED_EXTI_15 CTL1_ETSIC(6) /*!< external interrupt line 15 */
#define ADC_EXTTRIG_INSERTED_NONE CTL1_ETSIC(7) /*!< software trigger */
/* adc_samptx register value */
#define SAMPTX_SPT(regval) (BITS(0,2) & ((uint32_t)(regval) << 0))
#define ADC_SAMPLETIME_1POINT5 SAMPTX_SPT(0) /*!< 1.5 sampling cycles */
#define ADC_SAMPLETIME_7POINT5 SAMPTX_SPT(1) /*!< 7.5 sampling cycles */
#define ADC_SAMPLETIME_13POINT5 SAMPTX_SPT(2) /*!< 13.5 sampling cycles */
#define ADC_SAMPLETIME_28POINT5 SAMPTX_SPT(3) /*!< 28.5 sampling cycles */
#define ADC_SAMPLETIME_41POINT5 SAMPTX_SPT(4) /*!< 41.5 sampling cycles */
#define ADC_SAMPLETIME_55POINT5 SAMPTX_SPT(5) /*!< 55.5 sampling cycles */
#define ADC_SAMPLETIME_71POINT5 SAMPTX_SPT(6) /*!< 71.5 sampling cycles */
#define ADC_SAMPLETIME_239POINT5 SAMPTX_SPT(7) /*!< 239.5 sampling cycles */
/* ADC data offset for inserted channel x */
#define IOFFX_IOFF(regval) (BITS(0,11) & ((uint32_t)(regval) << 0))
/* ADC analog watchdog high threshold */
#define WDHT_WDHT(regval) (BITS(0,11) & ((uint32_t)(regval) << 0))
/* ADC analog watchdog low threshold */
#define WDLT_WDLT(regval) (BITS(0,11) & ((uint32_t)(regval) << 0))
/* ADC regular channel group length */
#define RSQ0_RL(regval) (BITS(20,23) & ((uint32_t)(regval) << 20))
/* ADC inserted channel group length */
#define ISQ_IL(regval) (BITS(20,21) & ((uint32_t)(regval) << 20))
/* ADC resolution definitions */
#define CTL0_DRES(regval) (BITS(24,25) & ((uint32_t)(regval) << 24)) /*!< ADC resolution */
#define ADC_RESOLUTION_12B CTL0_DRES(0) /*!< 12-bit ADC resolution */
#define ADC_RESOLUTION_10B CTL0_DRES(1) /*!< 10-bit ADC resolution */
#define ADC_RESOLUTION_8B CTL0_DRES(2) /*!< 8-bit ADC resolution */
#define ADC_RESOLUTION_6B CTL0_DRES(3) /*!< 6-bit ADC resolution */
/* ADC oversampling shift */
#define OVSAMPCTL_OVSS(regval) (BITS(5,8) & ((uint32_t)(regval) << 5))
#define ADC_OVERSAMPLING_SHIFT_NONE OVSAMPCTL_OVSS(0) /*!< no oversampling shift */
#define ADC_OVERSAMPLING_SHIFT_1B OVSAMPCTL_OVSS(1) /*!< 1-bit oversampling shift */
#define ADC_OVERSAMPLING_SHIFT_2B OVSAMPCTL_OVSS(2) /*!< 2-bit oversampling shift */
#define ADC_OVERSAMPLING_SHIFT_3B OVSAMPCTL_OVSS(3) /*!< 3-bit oversampling shift */
#define ADC_OVERSAMPLING_SHIFT_4B OVSAMPCTL_OVSS(4) /*!< 4-bit oversampling shift */
#define ADC_OVERSAMPLING_SHIFT_5B OVSAMPCTL_OVSS(5) /*!< 5-bit oversampling shift */
#define ADC_OVERSAMPLING_SHIFT_6B OVSAMPCTL_OVSS(6) /*!< 6-bit oversampling shift */
#define ADC_OVERSAMPLING_SHIFT_7B OVSAMPCTL_OVSS(7) /*!< 7-bit oversampling shift */
#define ADC_OVERSAMPLING_SHIFT_8B OVSAMPCTL_OVSS(8) /*!< 8-bit oversampling shift */
/* ADC oversampling ratio */
#define OVSAMPCTL_OVSR(regval) (BITS(2,4) & ((uint32_t)(regval) << 2))
#define ADC_OVERSAMPLING_RATIO_MUL2 OVSAMPCTL_OVSR(0) /*!< oversampling ratio multiple 2 */
#define ADC_OVERSAMPLING_RATIO_MUL4 OVSAMPCTL_OVSR(1) /*!< oversampling ratio multiple 4 */
#define ADC_OVERSAMPLING_RATIO_MUL8 OVSAMPCTL_OVSR(2) /*!< oversampling ratio multiple 8 */
#define ADC_OVERSAMPLING_RATIO_MUL16 OVSAMPCTL_OVSR(3) /*!< oversampling ratio multiple 16 */
#define ADC_OVERSAMPLING_RATIO_MUL32 OVSAMPCTL_OVSR(4) /*!< oversampling ratio multiple 32 */
#define ADC_OVERSAMPLING_RATIO_MUL64 OVSAMPCTL_OVSR(5) /*!< oversampling ratio multiple 64 */
#define ADC_OVERSAMPLING_RATIO_MUL128 OVSAMPCTL_OVSR(6) /*!< oversampling ratio multiple 128 */
#define ADC_OVERSAMPLING_RATIO_MUL256 OVSAMPCTL_OVSR(7) /*!< oversampling ratio multiple 256 */
/* ADC triggered oversampling */
#define ADC_OVERSAMPLING_ALL_CONVERT 0U /*!< all oversampled conversions for a channel are done consecutively after a trigger */
#define ADC_OVERSAMPLING_ONE_CONVERT 1U /*!< each oversampled conversion for a channel needs a trigger */
/* ADC channel group definitions */
#define ADC_REGULAR_CHANNEL ((uint8_t)0x01U) /*!< ADC regular channel group */
#define ADC_INSERTED_CHANNEL ((uint8_t)0x02U) /*!< ADC inserted channel group */
#define ADC_REGULAR_INSERTED_CHANNEL ((uint8_t)0x03U) /*!< both regular and inserted channel group */
#define ADC_CHANNEL_DISCON_DISABLE ((uint8_t)0x04U) /*!< disable discontinuous mode of regular & inserted channel */
/* ADC inserted channel definitions */
#define ADC_INSERTED_CHANNEL_0 ((uint8_t)0x00U) /*!< ADC inserted channel 0 */
#define ADC_INSERTED_CHANNEL_1 ((uint8_t)0x01U) /*!< ADC inserted channel 1 */
#define ADC_INSERTED_CHANNEL_2 ((uint8_t)0x02U) /*!< ADC inserted channel 2 */
#define ADC_INSERTED_CHANNEL_3 ((uint8_t)0x03U) /*!< ADC inserted channel 3 */
/* ADC channel definitions */
#define ADC_CHANNEL_0 ((uint8_t)0x00U) /*!< ADC channel 0 */
#define ADC_CHANNEL_1 ((uint8_t)0x01U) /*!< ADC channel 1 */
#define ADC_CHANNEL_2 ((uint8_t)0x02U) /*!< ADC channel 2 */
#define ADC_CHANNEL_3 ((uint8_t)0x03U) /*!< ADC channel 3 */
#define ADC_CHANNEL_4 ((uint8_t)0x04U) /*!< ADC channel 4 */
#define ADC_CHANNEL_5 ((uint8_t)0x05U) /*!< ADC channel 5 */
#define ADC_CHANNEL_6 ((uint8_t)0x06U) /*!< ADC channel 6 */
#define ADC_CHANNEL_7 ((uint8_t)0x07U) /*!< ADC channel 7 */
#define ADC_CHANNEL_8 ((uint8_t)0x08U) /*!< ADC channel 8 */
#define ADC_CHANNEL_9 ((uint8_t)0x09U) /*!< ADC channel 9 */
#define ADC_CHANNEL_16 ((uint8_t)0x10U) /*!< ADC channel 16 */
#define ADC_CHANNEL_17 ((uint8_t)0x11U) /*!< ADC channel 17 */
/* ADC interrupt definitions */
#define ADC_INT_WDE ADC_STAT_WDE /*!< analog watchdog event interrupt */
#define ADC_INT_EOC ADC_STAT_EOC /*!< end of group conversion interrupt */
#define ADC_INT_EOIC ADC_STAT_EOIC /*!< end of inserted group conversion interrupt */
/* ADC interrupt flag */
#define ADC_INT_FLAG_WDE ADC_STAT_WDE /*!< analog watchdog event interrupt flag */
#define ADC_INT_FLAG_EOC ADC_STAT_EOC /*!< end of group conversion interrupt flag */
#define ADC_INT_FLAG_EOIC ADC_STAT_EOIC /*!< end of inserted group conversion interrupt flag */
/* function declarations */
/* reset ADC */
void adc_deinit(void);
/* enable ADC interface */
void adc_enable(void);
/* disable ADC interface */
void adc_disable(void);
/* ADC calibration and reset calibration */
void adc_calibration_enable(void);
/* enable DMA request */
void adc_dma_mode_enable(void);
/* disable DMA request */
void adc_dma_mode_disable(void);
/* enable the temperature sensor and Vrefint channel */
void adc_tempsensor_vrefint_enable(void);
/* disable the temperature sensor and Vrefint channel */
void adc_tempsensor_vrefint_disable(void);
/* configure ADC discontinuous mode */
void adc_discontinuous_mode_config(uint8_t channel_group, uint8_t length);
/* configure ADC special function */
void adc_special_function_config(uint32_t function, ControlStatus newvalue);
/* configure ADC data alignment */
void adc_data_alignment_config(uint32_t data_alignment);
/* configure the length of regular channel group or inserted channel group */
void adc_channel_length_config(uint8_t channel_group, uint32_t length);
/* configure ADC regular channel */
void adc_regular_channel_config(uint8_t rank, uint8_t channel, uint32_t sample_time);
/* configure ADC inserted channel */
void adc_inserted_channel_config(uint8_t rank, uint8_t channel, uint32_t sample_time);
/* configure ADC inserted channel offset */
void adc_inserted_channel_offset_config(uint8_t inserted_channel, uint16_t offset);
/* enable ADC external trigger */
void adc_external_trigger_config(uint8_t channel_group, ControlStatus newvalue);
/* configure ADC external trigger source */
void adc_external_trigger_source_config(uint8_t channel_group, uint32_t external_trigger_source);
/* enable ADC software trigger */
void adc_software_trigger_enable(uint8_t channel_group);
/* read ADC regular group data register */
uint16_t adc_regular_data_read(void);
/* read ADC inserted group data register */
uint16_t adc_inserted_data_read(uint8_t inserted_channel);
/* get the ADC flag bits */
FlagStatus adc_flag_get(uint32_t flag);
/* clear the ADC flag bits */
void adc_flag_clear(uint32_t flag);
/* get the ADC interrupt bits */
FlagStatus adc_interrupt_flag_get(uint32_t flag);
/* clear the ADC flag */
void adc_interrupt_flag_clear(uint32_t flag);
/* enable ADC interrupt */
void adc_interrupt_enable(uint32_t interrupt);
/* disable ADC interrupt */
void adc_interrupt_disable(uint32_t interrupt);
/* configure ADC analog watchdog single channel */
void adc_watchdog_single_channel_enable(uint8_t channel);
/* configure ADC analog watchdog group channel */
void adc_watchdog_group_channel_enable(uint8_t channel_group);
/* disable ADC analog watchdog */
void adc_watchdog_disable(void);
/* configure ADC analog watchdog threshold */
void adc_watchdog_threshold_config(uint16_t low_threshold, uint16_t high_threshold);
/* configure ADC resolution */
void adc_resolution_config(uint32_t resolution);
/* configure ADC oversample mode */
void adc_oversample_mode_config(uint8_t mode, uint16_t shift, uint8_t ratio);
/* enable ADC oversample mode */
void adc_oversample_mode_enable(void);
/* disable ADC oversample mode */
void adc_oversample_mode_disable(void);
#endif /* GD32E23X_ADC_H */

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/*!
\file gd32e23x_cmp.h
\brief definitions for the CMP
\version 2024-02-22, V2.1.0, firmware for GD32E23x
*/
/*
Copyright (c) 2024, GigaDevice Semiconductor Inc.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.
*/
#ifndef GD32E23X_CMP_H
#define GD32E23X_CMP_H
#include "gd32e23x.h"
/* CMP definitions */
#define CMP CMP_BASE /*!< CMP base address */
/* registers definitions */
#define CMP_CS REG32((CMP) + 0x00000000U) /*!< CMP control and status register */
/* bits definitions */
/* CMP_CS */
#define CMP_CS_CMP0EN BIT(0) /*!< CMP0 enable */
#define CMP_CS_CMP0SW BIT(1) /*!< CMP switch mode enable */
#define CMP_CS_CMP0M BITS(2,3) /*!< CMP0 mode */
#define CMP_CS_CMP0MSEL BITS(4,6) /*!< CMP_IM input selection */
#define CMP_CS_CMP0OSEL BITS(8,10) /*!< CMP0 output selection */
#define CMP_CS_CMP0PL BIT(11) /*!< CMP0 output polarity */
#define CMP_CS_CMP0HST BITS(12,13) /*!< CMP0 hysteresis */
#define CMP_CS_CMP0O BIT(14) /*!< CMP0 output state bit */
#define CMP_CS_CMP0LK BIT(15) /*!< CMP0 lock */
/* constants definitions */
/* CMP units */
typedef enum{
CMP0, /*!< comparator 0 */
}cmp_enum;
/* CMP operating mode */
#define CS_CMPXM(regval) (BITS(2,3) & ((uint32_t)(regval) << 2U))
#define CMP_MODE_HIGHSPEED CS_CMPXM(0) /*!< CMP mode high speed */
#define CMP_MODE_MIDDLESPEED CS_CMPXM(1) /*!< CMP mode middle speed */
#define CMP_MODE_LOWSPEED CS_CMPXM(2) /*!< CMP mode low speed */
#define CMP_MODE_VERYLOWSPEED CS_CMPXM(3) /*!< CMP mode very low speed */
/* CMP hysteresis */
#define CS_CMPXHST(regval) (BITS(12,13) & ((uint32_t)(regval) << 12U))
#define CMP_HYSTERESIS_NO CS_CMPXHST(0) /*!< CMP output no hysteresis */
#define CMP_HYSTERESIS_LOW CS_CMPXHST(1) /*!< CMP output low hysteresis */
#define CMP_HYSTERESIS_MIDDLE CS_CMPXHST(2) /*!< CMP output middle hysteresis */
#define CMP_HYSTERESIS_HIGH CS_CMPXHST(3) /*!< CMP output high hysteresis */
/* CMP inverting input */
#define CS_CMPXMSEL(regval) (BITS(4,6) & ((uint32_t)(regval) << 4U))
#define CMP_INVERTING_INPUT_1_4VREFINT CS_CMPXMSEL(0) /*!< CMP inverting input 1/4 Vrefint */
#define CMP_INVERTING_INPUT_1_2VREFINT CS_CMPXMSEL(1) /*!< CMP inverting input 1/2 Vrefint */
#define CMP_INVERTING_INPUT_3_4VREFINT CS_CMPXMSEL(2) /*!< CMP inverting input 3/4 Vrefint */
#define CMP_INVERTING_INPUT_VREFINT CS_CMPXMSEL(3) /*!< CMP inverting input Vrefint */
#define CMP_INVERTING_INPUT_PA4 CS_CMPXMSEL(4) /*!< CMP inverting input PA4 */
#define CMP_INVERTING_INPUT_PA5 CS_CMPXMSEL(5) /*!< CMP inverting input PA5 */
#define CMP_INVERTING_INPUT_PA0_PA2 CS_CMPXMSEL(6) /*!< CMP inverting input PA0 for CMP0 or PA2 for CMP1 */
/* CMP output */
#define CS_CMPXOSEL(regval) (BITS(8,10) & ((uint32_t)(regval) << 8U))
#define CMP_OUTPUT_NONE CS_CMPXOSEL(0) /*!< CMP output none */
#define CMP_OUTPUT_TIMER0_BKIN CS_CMPXOSEL(1) /*!< CMP output TIMER0 break input */
#define CMP_OUTPUT_TIMER0_IC0 CS_CMPXOSEL(2) /*!< CMP output TIMER0_CH0 input capture */
#define CMP_OUTPUT_TIMER0_OCPRECLR CS_CMPXOSEL(3) /*!< CMP output TIMER0 OCPRE_CLR input */
#define CMP_OUTPUT_TIMER2_IC0 CS_CMPXOSEL(6) /*!< CMP output TIMER2_CH0 input capture */
#define CMP_OUTPUT_TIMER2_OCPRECLR CS_CMPXOSEL(7) /*!< CMP output TIMER2 OCPRE_CLR input */
/* CMP output polarity*/
#define CS_CMPXPL(regval) (BIT(11) & ((uint32_t)(regval) << 11U))
#define CMP_OUTPUT_POLARITY_NONINVERTED CS_CMPXPL(0) /*!< CMP output not inverted */
#define CMP_OUTPUT_POLARITY_INVERTED CS_CMPXPL(1) /*!< CMP output inverted */
/* CMP output level */
#define CMP_OUTPUTLEVEL_HIGH ((uint32_t)0x00000001U) /*!< CMP output high */
#define CMP_OUTPUTLEVEL_LOW ((uint32_t)0x00000000U) /*!< CMP output low */
/* function declarations */
/* initialization functions */
/* CMP deinit */
void cmp_deinit(cmp_enum cmp_periph);
/* CMP mode init */
void cmp_mode_init(cmp_enum cmp_periph, uint32_t operating_mode, uint32_t inverting_input, uint32_t output_hysteresis);
/* CMP output init */
void cmp_output_init(cmp_enum cmp_periph, uint32_t output_selection, uint32_t output_polarity);
/* enable functions */
/* enable CMP */
void cmp_enable(cmp_enum cmp_periph);
/* disable CMP */
void cmp_disable(cmp_enum cmp_periph);
/* enable CMP switch */
void cmp_switch_enable(void);
/* disable CMP switch */
void cmp_switch_disable(void);
/* lock the CMP */
void cmp_lock_enable(cmp_enum cmp_periph);
/* get state related functions */
/* get output level */
uint32_t cmp_output_level_get(cmp_enum cmp_periph);
#endif /* GD32E23X_CMP_H */

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/*!
\file gd32e23x_crc.h
\brief definitions for the CRC
\version 2024-02-22, V2.1.0, firmware for GD32E23x
*/
/*
Copyright (c) 2024, GigaDevice Semiconductor Inc.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.
*/
#ifndef GD32E23X_CRC_H
#define GD32E23X_CRC_H
#include "gd32e23x.h"
/* CRC definitions */
#define CRC CRC_BASE /*!< CRC bsae address */
/* registers definitions */
#define CRC_DATA REG32((CRC) + 0x00000000U) /*!< CRC data register */
#define CRC_FDATA REG32((CRC) + 0x00000004U) /*!< CRC free data register */
#define CRC_CTL REG32((CRC) + 0x00000008U) /*!< CRC control register */
#define CRC_IDATA REG32((CRC) + 0x00000010U) /*!< CRC initialization data register */
#define CRC_POLY REG32((CRC) + 0x00000014U) /*!< CRC polynomial register */
/* bits definitions */
/* CRC_DATA */
#define CRC_DATA_DATA BITS(0,31) /*!< CRC data bits */
/* CRC_FDATA */
#define CRC_FDATA_FDATA BITS(0,7) /*!< CRC free data bits */
/* CRC_CTL */
#define CRC_CTL_RST BIT(0) /*!< CRC reset bit */
#define CRC_CTL_PS BITS(3,4) /*!< size of polynomial function bits */
#define CRC_CTL_REV_I BITS(5,6) /*!< input data reverse function bits */
#define CRC_CTL_REV_O BIT(7) /*!< output data reverse function bit */
/* CRC_INIT */
#define CRC_IDATA_IDATA BITS(0,31) /*!< CRC initialization data bits */
/* CRC_POLY */
#define CRC_POLY_POLY BITS(0,31) /*!< CRC polynomial value bits */
/* constants definitions */
/* size of polynomial function */
#define CTL_PS(regval) (BITS(3, 4) & ((regval) << 3))
#define CRC_CTL_PS_32 CTL_PS(0) /*!< 32-bit polynomial for CRC calculation */
#define CRC_CTL_PS_16 CTL_PS(1) /*!< 16-bit polynomial for CRC calculation */
#define CRC_CTL_PS_8 CTL_PS(2) /*!< 8-bit polynomial for CRC calculation */
#define CRC_CTL_PS_7 CTL_PS(3) /*!< 7-bit polynomial for CRC calculation */
/* input data reverse function */
#define CTL_REV_I(regval) (BITS(5, 6) & ((regval) << 5))
#define CRC_INPUT_DATA_NOT CTL_REV_I(0) /*!< input data not reverse */
#define CRC_INPUT_DATA_BYTE CTL_REV_I(1) /*!< input data reversed by byte type */
#define CRC_INPUT_DATA_HALFWORD CTL_REV_I(2) /*!< input data reversed by half-word type */
#define CRC_INPUT_DATA_WORD CTL_REV_I(3) /*!< input data reversed by word type */
/* input data format */
#define INPUT_FORMAT_WORD 0U /*!< input data in word format */
#define INPUT_FORMAT_HALFWORD 1U /*!< input data in half-word format */
#define INPUT_FORMAT_BYTE 2U /*!< input data in byte format */
/* function declarations */
/* deinit CRC calculation unit */
void crc_deinit(void);
/* enable the reverse operation of output data */
void crc_reverse_output_data_enable(void);
/* disable the reverse operation of output data */
void crc_reverse_output_data_disable(void);
/* reset data register to the value of initialization data register */
void crc_data_register_reset(void);
/* read the data register */
uint32_t crc_data_register_read(void);
/* read the free data register */
uint8_t crc_free_data_register_read(void);
/* write the free data register */
void crc_free_data_register_write(uint8_t free_data);
/* write the initial value register */
void crc_init_data_register_write(uint32_t init_data);
/* configure the CRC input data function */
void crc_input_data_reverse_config(uint32_t data_reverse);
/* configure the CRC size of polynomial function */
void crc_polynomial_size_set(uint32_t poly_size);
/* configure the CRC polynomial value function */
void crc_polynomial_set(uint32_t poly);
/* CRC calculate single data */
uint32_t crc_single_data_calculate(uint32_t sdata, uint8_t data_format);
/* CRC calculate a data array */
uint32_t crc_block_data_calculate(void *array, uint32_t size, uint8_t data_format);
#endif /* GD32E23X_CRC_H */

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/*!
\file gd32e23x_dbg.h
\brief definitions for the DBG
\version 2024-02-22, V2.1.0, firmware for GD32E23x
*/
/*
Copyright (c) 2024, GigaDevice Semiconductor Inc.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.
*/
#ifndef GD32E23X_DBG_H
#define GD32E23X_DBG_H
#include "gd32e23x.h"
/* DBG definitions */
#define DBG DBG_BASE
/* registers definitions */
#define DBG_ID REG32(DBG + 0x00U) /*!< DBG_ID code register */
#define DBG_CTL0 REG32(DBG + 0x04U) /*!< DBG control register 0 */
#define DBG_CTL1 REG32(DBG + 0x08U) /*!< DBG control register 1 */
/* bits definitions */
/* DBG_ID */
#define DBG_ID_ID_CODE BITS(0,31) /*!< DBG ID code values */
/* DBG_CTL0 */
#define DBG_CTL0_SLP_HOLD BIT(0) /*!< keep debugger connection during sleep mode */
#define DBG_CTL0_DSLP_HOLD BIT(1) /*!< keep debugger connection during deepsleep mode */
#define DBG_CTL0_STB_HOLD BIT(2) /*!< keep debugger connection during standby mode */
#define DBG_CTL0_FWDGT_HOLD BIT(8) /*!< debug FWDGT kept when core is halted */
#define DBG_CTL0_WWDGT_HOLD BIT(9) /*!< debug WWDGT kept when core is halted */
#define DBG_CTL0_TIMER0_HOLD BIT(10) /*!< TIMER0 counter kept when core is halted */
#define DBG_CTL0_TIMER2_HOLD BIT(12) /*!< TIMER2 counter kept when core is halted */
#define DBG_CTL0_I2C0_HOLD BIT(15) /*!< hold I2C0 smbus when core is halted */
#define DBG_CTL0_I2C1_HOLD BIT(16) /*!< hold I2C1 smbus when core is halted */
#define DBG_CTL0_TIMER5_HOLD BIT(19) /*!< hold TIMER5 counter when core is halted */
#define DBG_CTL0_TIMER13_HOLD BIT(27) /*!< hold TIMER13 counter when core is halted */
/* DBG_CTL1 */
#define DBG_CTL1_RTC_HOLD BIT(10) /*!< hold RTC calendar and wakeup counter when core is halted */
#define DBG_CTL1_TIMER14_HOLD BIT(16) /*!< hold TIMER14 counter when core is halted */
#define DBG_CTL1_TIMER15_HOLD BIT(17) /*!< hold TIMER15 counter when core is halted */
#define DBG_CTL1_TIMER16_HOLD BIT(18) /*!< hold TIMER16 counter when core is halted */
/* constants definitions */
#define DBG_LOW_POWER_SLEEP DBG_CTL0_SLP_HOLD /*!< keep debugger connection during sleep mode */
#define DBG_LOW_POWER_DEEPSLEEP DBG_CTL0_DSLP_HOLD /*!< keep debugger connection during deepsleep mode */
#define DBG_LOW_POWER_STANDBY DBG_CTL0_STB_HOLD /*!< keep debugger connection during standby mode */
/* define the peripheral debug hold bit position and its register index offset */
#define DBG_REGIDX_BIT(regidx, bitpos) (((regidx) << 6) | (bitpos))
#define DBG_REG_VAL(periph) (REG32(DBG + ((uint32_t)(periph) >> 6)))
#define DBG_BIT_POS(val) ((uint32_t)(val) & 0x1FU)
/* register index */
enum dbg_reg_idx
{
DBG_IDX_CTL0 = 0x04U,
DBG_IDX_CTL1 = 0x08U,
};
/* peripherals hold bit */
typedef enum
{
DBG_FWDGT_HOLD = DBG_REGIDX_BIT(DBG_IDX_CTL0, 8U), /*!< FWDGT hold bit */
DBG_WWDGT_HOLD = DBG_REGIDX_BIT(DBG_IDX_CTL0, 9U), /*!< WWDGT hold bit */
DBG_TIMER0_HOLD = DBG_REGIDX_BIT(DBG_IDX_CTL0, 10U), /*!< TIMER0 hold bit */
DBG_TIMER2_HOLD = DBG_REGIDX_BIT(DBG_IDX_CTL0, 12U), /*!< TIMER2 hold bit */
DBG_TIMER5_HOLD = DBG_REGIDX_BIT(DBG_IDX_CTL0, 19U), /*!< TIMER5 hold bit */
DBG_TIMER13_HOLD = DBG_REGIDX_BIT(DBG_IDX_CTL0, 27U), /*!< TIMER13 hold bit */
DBG_TIMER14_HOLD = DBG_REGIDX_BIT(DBG_IDX_CTL1, 16U), /*!< TIMER14 hold bit */
DBG_TIMER15_HOLD = DBG_REGIDX_BIT(DBG_IDX_CTL1, 17U), /*!< TIMER15 hold bit */
DBG_TIMER16_HOLD = DBG_REGIDX_BIT(DBG_IDX_CTL1, 18U), /*!< TIMER16 hold bit */
DBG_I2C0_HOLD = DBG_REGIDX_BIT(DBG_IDX_CTL0, 15U), /*!< I2C0 hold bit */
DBG_I2C1_HOLD = DBG_REGIDX_BIT(DBG_IDX_CTL0, 16U), /*!< I2C1 hold bit */
DBG_RTC_HOLD = DBG_REGIDX_BIT(DBG_IDX_CTL1, 10U), /*!< RTC hold bit */
}dbg_periph_enum;
/* function declarations */
/* deinitialize the DBG */
void dbg_deinit(void);
/* read DBG_ID code register */
uint32_t dbg_id_get(void);
/* enable low power behavior when the MCU is in debug mode */
void dbg_low_power_enable(uint32_t dbg_low_power);
/* disable low power behavior when the MCU is in debug mode */
void dbg_low_power_disable(uint32_t dbg_low_power);
/* enable peripheral behavior when the MCU is in debug mode */
void dbg_periph_enable(dbg_periph_enum dbg_periph);
/* disable peripheral behavior when the MCU is in debug mode */
void dbg_periph_disable(dbg_periph_enum dbg_periph);
#endif /* GD32E23X_DBG_H */

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/*!
\file gd32e23x_dma.h
\brief definitions for the DMA
\version 2024-02-22, V2.1.0, firmware for GD32E23x
*/
/*
Copyright (c) 2024, GigaDevice Semiconductor Inc.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.
*/
#ifndef GD32E23X_DMA_H
#define GD32E23X_DMA_H
#include "gd32e23x.h"
/* DMA definitions */
#define DMA DMA_BASE /*!< DMA base address */
/* registers definitions */
#define DMA_INTF REG32(DMA + 0x00U) /*!< DMA interrupt flag register */
#define DMA_INTC REG32(DMA + 0x04U) /*!< DMA interrupt flag clear register */
#define DMA_CH0CTL REG32(DMA + 0x08U) /*!< DMA channel 0 control register */
#define DMA_CH0CNT REG32(DMA + 0x0CU) /*!< DMA channel 0 counter register */
#define DMA_CH0PADDR REG32(DMA + 0x10U) /*!< DMA channel 0 peripheral base address register */
#define DMA_CH0MADDR REG32(DMA + 0x14U) /*!< DMA channel 0 memory base address register */
#define DMA_CH1CTL REG32(DMA + 0x1CU) /*!< DMA channel 1 control register */
#define DMA_CH1CNT REG32(DMA + 0x20U) /*!< DMA channel 1 counter register */
#define DMA_CH1PADDR REG32(DMA + 0x24U) /*!< DMA channel 1 peripheral base address register */
#define DMA_CH1MADDR REG32(DMA + 0x28U) /*!< DMA channel 1 memory base address register */
#define DMA_CH2CTL REG32(DMA + 0x30U) /*!< DMA channel 2 control register */
#define DMA_CH2CNT REG32(DMA + 0x34U) /*!< DMA channel 2 counter register */
#define DMA_CH2PADDR REG32(DMA + 0x38U) /*!< DMA channel 2 peripheral base address register */
#define DMA_CH2MADDR REG32(DMA + 0x3CU) /*!< DMA channel 2 memory base address register */
#define DMA_CH3CTL REG32(DMA + 0x44U) /*!< DMA channel 3 control register */
#define DMA_CH3CNT REG32(DMA + 0x48U) /*!< DMA channel 3 counter register */
#define DMA_CH3PADDR REG32(DMA + 0x4CU) /*!< DMA channel 3 peripheral base address register */
#define DMA_CH3MADDR REG32(DMA + 0x50U) /*!< DMA channel 3 memory base address register */
#define DMA_CH4CTL REG32(DMA + 0x58U) /*!< DMA channel 4 control register */
#define DMA_CH4CNT REG32(DMA + 0x5CU) /*!< DMA channel 4 counter register */
#define DMA_CH4PADDR REG32(DMA + 0x60U) /*!< DMA channel 4 peripheral base address register */
#define DMA_CH4MADDR REG32(DMA + 0x64U) /*!< DMA channel 4 memory base address register */
/* bits definitions */
/* DMA_INTF */
#define DMA_INTF_GIF BIT(0) /*!< global interrupt flag of channel */
#define DMA_INTF_FTFIF BIT(1) /*!< full transfer finish flag of channel */
#define DMA_INTF_HTFIF BIT(2) /*!< half transfer finish flag of channel */
#define DMA_INTF_ERRIF BIT(3) /*!< error flag of channel */
/* DMA_INTC */
#define DMA_INTC_GIFC BIT(0) /*!< clear global interrupt flag of channel */
#define DMA_INTC_FTFIFC BIT(1) /*!< clear transfer finish flag of channel */
#define DMA_INTC_HTFIFC BIT(2) /*!< clear half transfer finish flag of channel */
#define DMA_INTC_ERRIFC BIT(3) /*!< clear error flag of channel */
/* DMA_CHxCTL,x=0..4 */
#define DMA_CHXCTL_CHEN BIT(0) /*!< channel x enable */
#define DMA_CHXCTL_FTFIE BIT(1) /*!< enable bit for channel x transfer complete interrupt */
#define DMA_CHXCTL_HTFIE BIT(2) /*!< enable bit for channel x transfer half complete interrupt */
#define DMA_CHXCTL_ERRIE BIT(3) /*!< enable bit for channel x error interrupt */
#define DMA_CHXCTL_DIR BIT(4) /*!< direction of the data transfer on the channel */
#define DMA_CHXCTL_CMEN BIT(5) /*!< circulation mode */
#define DMA_CHXCTL_PNAGA BIT(6) /*!< next address generation algorithm of peripheral */
#define DMA_CHXCTL_MNAGA BIT(7) /*!< next address generation algorithm of memory */
#define DMA_CHXCTL_PWIDTH BITS(8,9) /*!< transfer data size of peripheral */
#define DMA_CHXCTL_MWIDTH BITS(10,11) /*!< transfer data size of memory */
#define DMA_CHXCTL_PRIO BITS(12,13) /*!< priority level of channelx */
#define DMA_CHXCTL_M2M BIT(14) /*!< memory to memory mode */
/* DMA_CHxCNT,x=0..4 */
#define DMA_CHXCNT_CNT BITS(0,15) /*!< transfer counter */
/* DMA_CHxPADDR,x=0..4 */
#define DMA_CHXPADDR_PADDR BITS(0,31) /*!< peripheral base address */
/* DMA_CHxMADDR,x=0..4 */
#define DMA_CHXMADDR_MADDR BITS(0,31) /*!< memory base address */
/* constants definitions */
/* DMA channel select */
typedef enum
{
DMA_CH0 = 0, /*!< DMA Channel0 */
DMA_CH1, /*!< DMA Channel1 */
DMA_CH2, /*!< DMA Channel2 */
DMA_CH3, /*!< DMA Channel3 */
DMA_CH4, /*!< DMA Channel4 */
} dma_channel_enum;
/* DMA initialize struct */
typedef struct
{
uint32_t periph_addr; /*!< peripheral base address */
uint32_t periph_width; /*!< transfer data size of peripheral */
uint32_t memory_addr; /*!< memory base address */
uint32_t memory_width; /*!< transfer data size of memory */
uint32_t number; /*!< channel transfer number */
uint32_t priority; /*!< channel priority level */
uint8_t periph_inc; /*!< peripheral increasing mode */
uint8_t memory_inc; /*!< memory increasing mode */
uint8_t direction; /*!< channel data transfer direction */
} dma_parameter_struct;
/* DMA reset value */
#define DMA_CHCTL_RESET_VALUE ((uint32_t)0x00000000U) /*!< the reset value of DMA channel CHXCTL register */
#define DMA_CHCNT_RESET_VALUE ((uint32_t)0x00000000U) /*!< the reset value of DMA channel CHXCNT register */
#define DMA_CHPADDR_RESET_VALUE ((uint32_t)0x00000000U) /*!< the reset value of DMA channel CHXPADDR register */
#define DMA_CHMADDR_RESET_VALUE ((uint32_t)0x00000000U) /*!< the reset value of DMA channel CHXMADDR register */
#define DMA_CHINTF_RESET_VALUE (DMA_INTF_GIF | DMA_INTF_FTFIF | \
DMA_INTF_HTFIF | DMA_INTF_ERRIF)
#define DMA_FLAG_ADD(flag,shift) ((flag) << ((uint32_t)(shift) * 4U)) /*!< DMA channel flag shift */
/* DMA_CHCTL base address */
#define DMA_CHXCTL_BASE (DMA + 0x08U) /*!< the base address of DMA channel CHXCTL register */
#define DMA_CHXCNT_BASE (DMA + 0x0CU) /*!< the base address of DMA channel CHXCNT register */
#define DMA_CHXPADDR_BASE (DMA + 0x10U) /*!< the base address of DMA channel CHXPADDR register */
#define DMA_CHXMADDR_BASE (DMA + 0x14U) /*!< the base address of DMA channel CHXMADDR register */
/* DMA channel shift bit */
#define DMA_CHCTL(channel) REG32(DMA_CHXCTL_BASE + 0x14U * (uint32_t)(channel)) /*!< the address of DMA channel CHXCTL register */
#define DMA_CHCNT(channel) REG32(DMA_CHXCNT_BASE + 0x14U * (uint32_t)(channel)) /*!< the address of DMA channel CHXCNT register */
#define DMA_CHPADDR(channel) REG32(DMA_CHXPADDR_BASE + 0x14U * (uint32_t)(channel)) /*!< the address of DMA channel CHXPADDR register */
#define DMA_CHMADDR(channel) REG32(DMA_CHXMADDR_BASE + 0x14U * (uint32_t)(channel)) /*!< the address of DMA channel CHXMADDR register */
/* DMA_INTF register */
/* interrupt flag bits */
#define DMA_INT_FLAG_G DMA_INTF_GIF /*!< global interrupt flag of channel */
#define DMA_INT_FLAG_FTF DMA_INTF_FTFIF /*!< full transfer finish interrupt flag of channel */
#define DMA_INT_FLAG_HTF DMA_INTF_HTFIF /*!< half transfer finish interrupt flag of channel */
#define DMA_INT_FLAG_ERR DMA_INTF_ERRIF /*!< error interrupt flag of channel */
/* flag bits */
#define DMA_FLAG_G DMA_INTF_GIF /*!< global interrupt flag of channel */
#define DMA_FLAG_FTF DMA_INTF_FTFIF /*!< full transfer finish flag of channel */
#define DMA_FLAG_HTF DMA_INTF_HTFIF /*!< half transfer finish flag of channel */
#define DMA_FLAG_ERR DMA_INTF_ERRIF /*!< error flag of channel */
/* DMA_CHxCTL register */
/* interrupt enable bits */
#define DMA_INT_FTF DMA_CHXCTL_FTFIE /*!< enable bit for channel full transfer finish interrupt */
#define DMA_INT_HTF DMA_CHXCTL_HTFIE /*!< enable bit for channel half transfer finish interrupt */
#define DMA_INT_ERR DMA_CHXCTL_ERRIE /*!< enable bit for channel error interrupt */
/* transfer direction */
#define DMA_PERIPHERAL_TO_MEMORY ((uint8_t)0x00U) /*!< read from peripheral and write to memory */
#define DMA_MEMORY_TO_PERIPHERAL ((uint8_t)0x01U) /*!< read from memory and write to peripheral */
/* peripheral increasing mode */
#define DMA_PERIPH_INCREASE_DISABLE ((uint8_t)0x00U) /*!< next address of peripheral is fixed address mode */
#define DMA_PERIPH_INCREASE_ENABLE ((uint8_t)0x01U) /*!< next address of peripheral is increasing address mode */
/* memory increasing mode */
#define DMA_MEMORY_INCREASE_DISABLE ((uint8_t)0x00U) /*!< next address of memory is fixed address mode */
#define DMA_MEMORY_INCREASE_ENABLE ((uint8_t)0x01U) /*!< next address of memory is increasing address mode */
/* transfer data size of peripheral */
#define CHCTL_PWIDTH(regval) (BITS(8,9) & ((regval) << 8)) /*!< transfer data size of peripheral */
#define DMA_PERIPHERAL_WIDTH_8BIT CHCTL_PWIDTH(0U) /*!< transfer data size of peripheral is 8-bit */
#define DMA_PERIPHERAL_WIDTH_16BIT CHCTL_PWIDTH(1U) /*!< transfer data size of peripheral is 16-bit */
#define DMA_PERIPHERAL_WIDTH_32BIT CHCTL_PWIDTH(2U) /*!< transfer data size of peripheral is 32-bit */
/* transfer data size of memory */
#define CHCTL_MWIDTH(regval) (BITS(10,11) & ((regval) << 10)) /*!< transfer data size of memory */
#define DMA_MEMORY_WIDTH_8BIT CHCTL_MWIDTH(0U) /*!< transfer data size of memory is 8-bit */
#define DMA_MEMORY_WIDTH_16BIT CHCTL_MWIDTH(1U) /*!< transfer data size of memory is 16-bit */
#define DMA_MEMORY_WIDTH_32BIT CHCTL_MWIDTH(2U) /*!< transfer data size of memory is 32-bit */
/* channel priority level */
#define CHCTL_PRIO(regval) (BITS(12,13) & ((regval) << 12)) /*!< DMA channel priority level */
#define DMA_PRIORITY_LOW CHCTL_PRIO(0U) /*!< low priority */
#define DMA_PRIORITY_MEDIUM CHCTL_PRIO(1U) /*!< medium priority */
#define DMA_PRIORITY_HIGH CHCTL_PRIO(2U) /*!< high priority */
#define DMA_PRIORITY_ULTRA_HIGH CHCTL_PRIO(3U) /*!< ultra high priority */
/* DMA_CHxCNT register */
/* transfer counter */
#define DMA_CHANNEL_CNT_MASK DMA_CHXCNT_CNT
/* function declarations */
/* deinitialize DMA a channel registers */
void dma_deinit(dma_channel_enum channelx);
/* initialize the parameters of DMA struct with the default values */
void dma_struct_para_init(dma_parameter_struct* init_struct);
/* initialize DMA channel */
void dma_init(dma_channel_enum channelx, dma_parameter_struct* init_struct);
/* enable DMA circulation mode */
void dma_circulation_enable(dma_channel_enum channelx);
/* disable DMA circulation mode */
void dma_circulation_disable(dma_channel_enum channelx);
/* enable memory to memory mode */
void dma_memory_to_memory_enable(dma_channel_enum channelx);
/* disable memory to memory mode */
void dma_memory_to_memory_disable(dma_channel_enum channelx);
/* enable DMA channel */
void dma_channel_enable(dma_channel_enum channelx);
/* disable DMA channel */
void dma_channel_disable(dma_channel_enum channelx);
/* set DMA peripheral base address */
void dma_periph_address_config(dma_channel_enum channelx, uint32_t address);
/* set DMA memory base address */
void dma_memory_address_config(dma_channel_enum channelx, uint32_t address);
/* set the number of remaining data to be transferred by the DMA */
void dma_transfer_number_config(dma_channel_enum channelx, uint32_t number);
/* get the number of remaining data to be transferred by the DMA */
uint32_t dma_transfer_number_get(dma_channel_enum channelx);
/* configure priority level of DMA channel */
void dma_priority_config(dma_channel_enum channelx, uint32_t priority);
/* configure transfer data size of memory */
void dma_memory_width_config (dma_channel_enum channelx, uint32_t mwidth);
/* configure transfer data size of peripheral */
void dma_periph_width_config (dma_channel_enum channelx, uint32_t pwidth);
/* enable next address increasement algorithm of memory */
void dma_memory_increase_enable(dma_channel_enum channelx);
/* disable next address increasement algorithm of memory */
void dma_memory_increase_disable(dma_channel_enum channelx);
/* enable next address increasement algorithm of peripheral */
void dma_periph_increase_enable(dma_channel_enum channelx);
/* disable next address increasement algorithm of peripheral */
void dma_periph_increase_disable(dma_channel_enum channelx);
/* configure the direction of data transfer on the channel */
void dma_transfer_direction_config(dma_channel_enum channelx, uint8_t direction);
/* check DMA flag is set or not */
FlagStatus dma_flag_get(dma_channel_enum channelx, uint32_t flag);
/* clear DMA a channel flag */
void dma_flag_clear(dma_channel_enum channelx, uint32_t flag);
/* check DMA flag and interrupt enable bit is set or not */
FlagStatus dma_interrupt_flag_get(dma_channel_enum channelx, uint32_t flag);
/* clear DMA a channel flag */
void dma_interrupt_flag_clear(dma_channel_enum channelx, uint32_t flag);
/* enable DMA interrupt */
void dma_interrupt_enable(dma_channel_enum channelx, uint32_t source);
/* disable DMA interrupt */
void dma_interrupt_disable(dma_channel_enum channelx, uint32_t source);
#endif /* GD32E23X_DMA_H */

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/*!
\file gd32e23x_exti.h
\brief definitions for the EXTI
\version 2024-02-22, V2.1.0, firmware for GD32E23x
*/
/*
Copyright (c) 2024, GigaDevice Semiconductor Inc.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.
*/
#ifndef GD32E23X_EXTI_H
#define GD32E23X_EXTI_H
#include "gd32e23x.h"
/* EXTI definitions */
#define EXTI EXTI_BASE
/* registers definitions */
#define EXTI_INTEN REG32(EXTI + 0x00000000U) /*!< interrupt enable register */
#define EXTI_EVEN REG32(EXTI + 0x00000004U) /*!< event enable register */
#define EXTI_RTEN REG32(EXTI + 0x00000008U) /*!< rising edge trigger enable register */
#define EXTI_FTEN REG32(EXTI + 0x0000000CU) /*!< falling edge trigger enable register */
#define EXTI_SWIEV REG32(EXTI + 0x00000010U) /*!< software interrupt event register */
#define EXTI_PD REG32(EXTI + 0x00000014U) /*!< pending register */
/* bits definitions */
/* EXTI_INTEN */
#define EXTI_INTEN_INTEN0 BIT(0) /*!< interrupt from line 0 */
#define EXTI_INTEN_INTEN1 BIT(1) /*!< interrupt from line 1 */
#define EXTI_INTEN_INTEN2 BIT(2) /*!< interrupt from line 2 */
#define EXTI_INTEN_INTEN3 BIT(3) /*!< interrupt from line 3 */
#define EXTI_INTEN_INTEN4 BIT(4) /*!< interrupt from line 4 */
#define EXTI_INTEN_INTEN5 BIT(5) /*!< interrupt from line 5 */
#define EXTI_INTEN_INTEN6 BIT(6) /*!< interrupt from line 6 */
#define EXTI_INTEN_INTEN7 BIT(7) /*!< interrupt from line 7 */
#define EXTI_INTEN_INTEN8 BIT(8) /*!< interrupt from line 8 */
#define EXTI_INTEN_INTEN9 BIT(9) /*!< interrupt from line 9 */
#define EXTI_INTEN_INTEN10 BIT(10) /*!< interrupt from line 10 */
#define EXTI_INTEN_INTEN11 BIT(11) /*!< interrupt from line 11 */
#define EXTI_INTEN_INTEN12 BIT(12) /*!< interrupt from line 12 */
#define EXTI_INTEN_INTEN13 BIT(13) /*!< interrupt from line 13 */
#define EXTI_INTEN_INTEN14 BIT(14) /*!< interrupt from line 14 */
#define EXTI_INTEN_INTEN15 BIT(15) /*!< interrupt from line 15 */
#define EXTI_INTEN_INTEN16 BIT(16) /*!< interrupt from line 16 */
#define EXTI_INTEN_INTEN17 BIT(17) /*!< interrupt from line 17 */
#define EXTI_INTEN_INTEN18 BIT(18) /*!< interrupt from line 18 */
#define EXTI_INTEN_INTEN19 BIT(19) /*!< interrupt from line 19 */
#define EXTI_INTEN_INTEN20 BIT(20) /*!< interrupt from line 20 */
#define EXTI_INTEN_INTEN21 BIT(21) /*!< interrupt from line 21 */
#define EXTI_INTEN_INTEN22 BIT(22) /*!< interrupt from line 22 */
#define EXTI_INTEN_INTEN23 BIT(23) /*!< interrupt from line 23 */
#define EXTI_INTEN_INTEN24 BIT(24) /*!< interrupt from line 24 */
#define EXTI_INTEN_INTEN25 BIT(25) /*!< interrupt from line 25 */
#define EXTI_INTEN_INTEN26 BIT(26) /*!< interrupt from line 26 */
#define EXTI_INTEN_INTEN27 BIT(27) /*!< interrupt from line 27 */
/* EXTI_EVEN */
#define EXTI_EVEN_EVEN0 BIT(0) /*!< event from line 0 */
#define EXTI_EVEN_EVEN1 BIT(1) /*!< event from line 1 */
#define EXTI_EVEN_EVEN2 BIT(2) /*!< event from line 2 */
#define EXTI_EVEN_EVEN3 BIT(3) /*!< event from line 3 */
#define EXTI_EVEN_EVEN4 BIT(4) /*!< event from line 4 */
#define EXTI_EVEN_EVEN5 BIT(5) /*!< event from line 5 */
#define EXTI_EVEN_EVEN6 BIT(6) /*!< event from line 6 */
#define EXTI_EVEN_EVEN7 BIT(7) /*!< event from line 7 */
#define EXTI_EVEN_EVEN8 BIT(8) /*!< event from line 8 */
#define EXTI_EVEN_EVEN9 BIT(9) /*!< event from line 9 */
#define EXTI_EVEN_EVEN10 BIT(10) /*!< event from line 10 */
#define EXTI_EVEN_EVEN11 BIT(11) /*!< event from line 11 */
#define EXTI_EVEN_EVEN12 BIT(12) /*!< event from line 12 */
#define EXTI_EVEN_EVEN13 BIT(13) /*!< event from line 13 */
#define EXTI_EVEN_EVEN14 BIT(14) /*!< event from line 14 */
#define EXTI_EVEN_EVEN15 BIT(15) /*!< event from line 15 */
#define EXTI_EVEN_EVEN16 BIT(16) /*!< event from line 16 */
#define EXTI_EVEN_EVEN17 BIT(17) /*!< event from line 17 */
#define EXTI_EVEN_EVEN18 BIT(18) /*!< event from line 18 */
#define EXTI_EVEN_EVEN19 BIT(19) /*!< event from line 19 */
#define EXTI_EVEN_EVEN20 BIT(20) /*!< event from line 20 */
#define EXTI_EVEN_EVEN21 BIT(21) /*!< event from line 21 */
#define EXTI_EVEN_EVEN22 BIT(22) /*!< event from line 22 */
#define EXTI_EVEN_EVEN23 BIT(23) /*!< event from line 23 */
#define EXTI_EVEN_EVEN24 BIT(24) /*!< event from line 24 */
#define EXTI_EVEN_EVEN25 BIT(25) /*!< event from line 25 */
#define EXTI_EVEN_EVEN26 BIT(26) /*!< event from line 26 */
#define EXTI_EVEN_EVEN27 BIT(27) /*!< event from line 27 */
/* EXTI_RTEN */
#define EXTI_RTEN_RTEN0 BIT(0) /*!< rising edge from line 0 */
#define EXTI_RTEN_RTEN1 BIT(1) /*!< rising edge from line 1 */
#define EXTI_RTEN_RTEN2 BIT(2) /*!< rising edge from line 2 */
#define EXTI_RTEN_RTEN3 BIT(3) /*!< rising edge from line 3 */
#define EXTI_RTEN_RTEN4 BIT(4) /*!< rising edge from line 4 */
#define EXTI_RTEN_RTEN5 BIT(5) /*!< rising edge from line 5 */
#define EXTI_RTEN_RTEN6 BIT(6) /*!< rising edge from line 6 */
#define EXTI_RTEN_RTEN7 BIT(7) /*!< rising edge from line 7 */
#define EXTI_RTEN_RTEN8 BIT(8) /*!< rising edge from line 8 */
#define EXTI_RTEN_RTEN9 BIT(9) /*!< rising edge from line 9 */
#define EXTI_RTEN_RTEN10 BIT(10) /*!< rising edge from line 10 */
#define EXTI_RTEN_RTEN11 BIT(11) /*!< rising edge from line 11 */
#define EXTI_RTEN_RTEN12 BIT(12) /*!< rising edge from line 12 */
#define EXTI_RTEN_RTEN13 BIT(13) /*!< rising edge from line 13 */
#define EXTI_RTEN_RTEN14 BIT(14) /*!< rising edge from line 14 */
#define EXTI_RTEN_RTEN15 BIT(15) /*!< rising edge from line 15 */
#define EXTI_RTEN_RTEN16 BIT(16) /*!< rising edge from line 16 */
#define EXTI_RTEN_RTEN17 BIT(17) /*!< rising edge from line 17 */
#define EXTI_RTEN_RTEN19 BIT(19) /*!< rising edge from line 19 */
#define EXTI_RTEN_RTEN21 BIT(21) /*!< rising edge from line 21 */
/* EXTI_FTEN */
#define EXTI_FTEN_FTEN0 BIT(0) /*!< falling edge from line 0 */
#define EXTI_FTEN_FTEN1 BIT(1) /*!< falling edge from line 1 */
#define EXTI_FTEN_FTEN2 BIT(2) /*!< falling edge from line 2 */
#define EXTI_FTEN_FTEN3 BIT(3) /*!< falling edge from line 3 */
#define EXTI_FTEN_FTEN4 BIT(4) /*!< falling edge from line 4 */
#define EXTI_FTEN_FTEN5 BIT(5) /*!< falling edge from line 5 */
#define EXTI_FTEN_FTEN6 BIT(6) /*!< falling edge from line 6 */
#define EXTI_FTEN_FTEN7 BIT(7) /*!< falling edge from line 7 */
#define EXTI_FTEN_FTEN8 BIT(8) /*!< falling edge from line 8 */
#define EXTI_FTEN_FTEN9 BIT(9) /*!< falling edge from line 9 */
#define EXTI_FTEN_FTEN10 BIT(10) /*!< falling edge from line 10 */
#define EXTI_FTEN_FTEN11 BIT(11) /*!< falling edge from line 11 */
#define EXTI_FTEN_FTEN12 BIT(12) /*!< falling edge from line 12 */
#define EXTI_FTEN_FTEN13 BIT(13) /*!< falling edge from line 13 */
#define EXTI_FTEN_FTEN14 BIT(14) /*!< falling edge from line 14 */
#define EXTI_FTEN_FTEN15 BIT(15) /*!< falling edge from line 15 */
#define EXTI_FTEN_FTEN16 BIT(16) /*!< falling edge from line 16 */
#define EXTI_FTEN_FTEN17 BIT(17) /*!< falling edge from line 17 */
#define EXTI_FTEN_FTEN19 BIT(19) /*!< falling edge from line 19 */
#define EXTI_FTEN_FTEN21 BIT(21) /*!< falling edge from line 21 */
/* EXTI_SWIEV */
#define EXTI_SWIEV_SWIEV0 BIT(0) /*!< software interrupt/event request from line 0 */
#define EXTI_SWIEV_SWIEV1 BIT(1) /*!< software interrupt/event request from line 1 */
#define EXTI_SWIEV_SWIEV2 BIT(2) /*!< software interrupt/event request from line 2 */
#define EXTI_SWIEV_SWIEV3 BIT(3) /*!< software interrupt/event request from line 3 */
#define EXTI_SWIEV_SWIEV4 BIT(4) /*!< software interrupt/event request from line 4 */
#define EXTI_SWIEV_SWIEV5 BIT(5) /*!< software interrupt/event request from line 5 */
#define EXTI_SWIEV_SWIEV6 BIT(6) /*!< software interrupt/event request from line 6 */
#define EXTI_SWIEV_SWIEV7 BIT(7) /*!< software interrupt/event request from line 7 */
#define EXTI_SWIEV_SWIEV8 BIT(8) /*!< software interrupt/event request from line 8 */
#define EXTI_SWIEV_SWIEV9 BIT(9) /*!< software interrupt/event request from line 9 */
#define EXTI_SWIEV_SWIEV10 BIT(10) /*!< software interrupt/event request from line 10 */
#define EXTI_SWIEV_SWIEV11 BIT(11) /*!< software interrupt/event request from line 11 */
#define EXTI_SWIEV_SWIEV12 BIT(12) /*!< software interrupt/event request from line 12 */
#define EXTI_SWIEV_SWIEV13 BIT(13) /*!< software interrupt/event request from line 13 */
#define EXTI_SWIEV_SWIEV14 BIT(14) /*!< software interrupt/event request from line 14 */
#define EXTI_SWIEV_SWIEV15 BIT(15) /*!< software interrupt/event request from line 15 */
#define EXTI_SWIEV_SWIEV16 BIT(16) /*!< software interrupt/event request from line 16 */
#define EXTI_SWIEV_SWIEV17 BIT(17) /*!< software interrupt/event request from line 17 */
#define EXTI_SWIEV_SWIEV19 BIT(19) /*!< software interrupt/event request from line 19 */
#define EXTI_SWIEV_SWIEV21 BIT(21) /*!< software interrupt/event request from line 21 */
/* EXTI_PD */
#define EXTI_PD_PD0 BIT(0) /*!< interrupt pending status from line 0 */
#define EXTI_PD_PD1 BIT(1) /*!< interrupt pending status from line 1 */
#define EXTI_PD_PD2 BIT(2) /*!< interrupt pending status from line 2 */
#define EXTI_PD_PD3 BIT(3) /*!< interrupt pending status from line 3 */
#define EXTI_PD_PD4 BIT(4) /*!< interrupt pending status from line 4 */
#define EXTI_PD_PD5 BIT(5) /*!< interrupt pending status from line 5 */
#define EXTI_PD_PD6 BIT(6) /*!< interrupt pending status from line 6 */
#define EXTI_PD_PD7 BIT(7) /*!< interrupt pending status from line 7 */
#define EXTI_PD_PD8 BIT(8) /*!< interrupt pending status from line 8 */
#define EXTI_PD_PD9 BIT(9) /*!< interrupt pending status from line 9 */
#define EXTI_PD_PD10 BIT(10) /*!< interrupt pending status from line 10 */
#define EXTI_PD_PD11 BIT(11) /*!< interrupt pending status from line 11 */
#define EXTI_PD_PD12 BIT(12) /*!< interrupt pending status from line 12 */
#define EXTI_PD_PD13 BIT(13) /*!< interrupt pending status from line 13 */
#define EXTI_PD_PD14 BIT(14) /*!< interrupt pending status from line 14 */
#define EXTI_PD_PD15 BIT(15) /*!< interrupt pending status from line 15 */
#define EXTI_PD_PD16 BIT(16) /*!< interrupt pending status from line 16 */
#define EXTI_PD_PD17 BIT(17) /*!< interrupt pending status from line 17 */
#define EXTI_PD_PD19 BIT(19) /*!< interrupt pending status from line 19 */
#define EXTI_PD_PD21 BIT(21) /*!< interrupt pending status from line 21 */
/* constants definitions */
/* EXTI line number */
typedef enum {
EXTI_0 = BIT(0), /*!< EXTI line 0 */
EXTI_1 = BIT(1), /*!< EXTI line 1 */
EXTI_2 = BIT(2), /*!< EXTI line 2 */
EXTI_3 = BIT(3), /*!< EXTI line 3 */
EXTI_4 = BIT(4), /*!< EXTI line 4 */
EXTI_5 = BIT(5), /*!< EXTI line 5 */
EXTI_6 = BIT(6), /*!< EXTI line 6 */
EXTI_7 = BIT(7), /*!< EXTI line 7 */
EXTI_8 = BIT(8), /*!< EXTI line 8 */
EXTI_9 = BIT(9), /*!< EXTI line 9 */
EXTI_10 = BIT(10), /*!< EXTI line 10 */
EXTI_11 = BIT(11), /*!< EXTI line 11 */
EXTI_12 = BIT(12), /*!< EXTI line 12 */
EXTI_13 = BIT(13), /*!< EXTI line 13 */
EXTI_14 = BIT(14), /*!< EXTI line 14 */
EXTI_15 = BIT(15), /*!< EXTI line 15 */
EXTI_16 = BIT(16), /*!< EXTI line 16 */
EXTI_17 = BIT(17), /*!< EXTI line 17 */
EXTI_18 = BIT(18), /*!< EXTI line 18 */
EXTI_19 = BIT(19), /*!< EXTI line 19 */
EXTI_20 = BIT(20), /*!< EXTI line 20 */
EXTI_21 = BIT(21), /*!< EXTI line 21 */
EXTI_22 = BIT(22), /*!< EXTI line 22 */
EXTI_23 = BIT(23), /*!< EXTI line 23 */
EXTI_24 = BIT(24), /*!< EXTI line 24 */
EXTI_25 = BIT(25), /*!< EXTI line 25 */
EXTI_26 = BIT(26), /*!< EXTI line 26 */
EXTI_27 = BIT(27) /*!< EXTI line 27 */
} exti_line_enum;
/* external interrupt and event */
typedef enum {
EXTI_INTERRUPT = 0, /*!< EXTI interrupt mode */
EXTI_EVENT /*!< EXTI event mode */
} exti_mode_enum;
/* interrupt and event trigger mode */
typedef enum {
EXTI_TRIG_RISING = 0, /*!< EXTI rising edge trigger */
EXTI_TRIG_FALLING, /*!< EXTI falling edge trigger */
EXTI_TRIG_BOTH, /*!< EXTI rising and falling edge trigger */
EXTI_TRIG_NONE /*!< without rising edge or falling edge trigger */
} exti_trig_type_enum;
/* function declarations */
/* initialization, EXTI lines configuration functions */
/* deinitialize the EXTI */
void exti_deinit(void);
/* initialize the EXTI line x */
void exti_init(exti_line_enum linex, exti_mode_enum mode, exti_trig_type_enum trig_type);
/* enable the interrupts from EXTI line x */
void exti_interrupt_enable(exti_line_enum linex);
/* disable the interrupts from EXTI line x */
void exti_interrupt_disable(exti_line_enum linex);
/* enable the events from EXTI line x */
void exti_event_enable(exti_line_enum linex);
/* disable the events from EXTI line x */
void exti_event_disable(exti_line_enum linex);
/* enable the software interrupt event from EXTI line x */
void exti_software_interrupt_enable(exti_line_enum linex);
/* disable the software interrupt event from EXTI line x */
void exti_software_interrupt_disable(exti_line_enum linex);
/* interrupt & flag functions */
/* get EXTI line x interrupt pending flag */
FlagStatus exti_flag_get(exti_line_enum linex);
/* clear EXTI line x interrupt pending flag */
void exti_flag_clear(exti_line_enum linex);
/* get EXTI line x interrupt pending flag */
FlagStatus exti_interrupt_flag_get(exti_line_enum linex);
/* clear EXTI line x interrupt pending flag */
void exti_interrupt_flag_clear(exti_line_enum linex);
#endif /* GD32E23X_EXTI_H */

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/*!
\file gd32e23x_fmc.h
\brief definitions for the FMC
\version 2024-02-22, V2.1.0, firmware for GD32E23x
*/
/*
Copyright (c) 2024, GigaDevice Semiconductor Inc.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.
*/
#ifndef GD32E23X_FMC_H
#define GD32E23X_FMC_H
#include "gd32e23x.h"
/* FMC and option byte definition */
#define FMC FMC_BASE /*!< FMC register base address */
#define OB OB_BASE /*!< option byte base address */
/* registers definitions */
#define FMC_WS REG32((FMC) + 0x00U) /*!< FMC wait state register */
#define FMC_KEY REG32((FMC) + 0x04U) /*!< FMC unlock key register */
#define FMC_OBKEY REG32((FMC) + 0x08U) /*!< FMC option bytes unlock key register */
#define FMC_STAT REG32((FMC) + 0x0CU) /*!< FMC status register */
#define FMC_CTL REG32((FMC) + 0x10U) /*!< FMC control register */
#define FMC_ADDR REG32((FMC) + 0x14U) /*!< FMC address register */
#define FMC_OBSTAT REG32((FMC) + 0x1CU) /*!< FMC option bytes status register */
#define FMC_WP REG32((FMC) + 0x20U) /*!< FMC write protection register */
#define FMC_PID REG32((FMC) + 0x100U) /*!< FMC product ID register */
#define OB_SPC_USER REG32((OB) + 0x00U) /*!< option byte security protection value and user value */
#define OB_DATA REG32((OB) + 0x04U) /*!< option byte data value*/
#define OB_WP REG32((OB) + 0x08U) /*!< option byte write protection */
/* bits definitions */
/* FMC_WS */
#define FMC_WS_WSCNT BITS(0,2) /*!< wait state counter */
#define FMC_WS_PFEN BIT(4) /*!< pre-fetch enable */
#define FMC_WS_PGW BIT(15) /*!< program width to flash memory */
/* FMC_KEY */
#define FMC_KEY_KEY BITS(0,31) /*!< FMC main flash unlock key bits */
/* FMC_OBKEY */
#define FMC_OBKEY_OBKEY BITS(0,31) /*!< option bytes unlock key bits */
/* FMC_STAT */
#define FMC_STAT_BUSY BIT(0) /*!< flash busy flag bit */
#define FMC_STAT_PGERR BIT(2) /*!< flash program error flag bit */
#define FMC_STAT_PGAERR BIT(3) /*!< program alignment error flag bit */
#define FMC_STAT_WPERR BIT(4) /*!< flash write protection error flag bit */
#define FMC_STAT_ENDF BIT(5) /*!< end of operation flag bit */
/* FMC_CTL */
#define FMC_CTL_PG BIT(0) /*!< main flash program command bit */
#define FMC_CTL_PER BIT(1) /*!< main flash page erase bit */
#define FMC_CTL_MER BIT(2) /*!< main flash mass erase bit */
#define FMC_CTL_OBPG BIT(4) /*!< option bytes program command bit */
#define FMC_CTL_OBER BIT(5) /*!< option bytes erase command bit */
#define FMC_CTL_START BIT(6) /*!< send erase command to FMC bit */
#define FMC_CTL_LK BIT(7) /*!< flash lock bit */
#define FMC_CTL_OBWEN BIT(9) /*!< option bytes erase/program enable bit */
#define FMC_CTL_ERRIE BIT(10) /*!< error interrupt enable bit */
#define FMC_CTL_ENDIE BIT(12) /*!< end of operation interrupt enable bit */
#define FMC_CTL_OBRLD BIT(13) /*!< option bytes reload bit */
/* FMC_ADDR */
#define FMC_ADDR_ADDR BITS(0,31) /*!< flash command address bits */
/* FMC_OBSTAT */
#define FMC_OBSTAT_OBERR BIT(0) /*!< option bytes read error bit */
#define FMC_OBSTAT_PLEVEL_BIT0 BIT(1) /*!< protection level bit 0 */
#define FMC_OBSTAT_PLEVEL_BIT1 BIT(2) /*!< protection level bit 1 */
#define FMC_OBSTAT_USER BITS(8,15) /*!< option bytes user bits */
#define FMC_OBSTAT_DATA BITS(16,31) /*!< option byte data bits */
/* FMC_WP */
#define FMC_WP_WP BITS(0,31) /*!< store WP[15:0] of option byte block after system reset */
/* FMC_PID */
#define FMC_PID_PID BITS(0,31) /*!< product ID bits */
/* constants definitions */
/* fmc state */
typedef enum
{
FMC_READY, /*!< the operation has been completed */
FMC_BUSY, /*!< the operation is in progress */
FMC_PGERR, /*!< program error */
FMC_PGAERR, /*!< program alignment error */
FMC_WPERR, /*!< erase/program protection error */
FMC_TOERR, /*!< timeout error */
FMC_OB_HSPC /*!< option byte security protection code high */
}fmc_state_enum;
/* unlock key */
#define UNLOCK_KEY0 ((uint32_t)0x45670123U) /*!< unlock key 0 */
#define UNLOCK_KEY1 ((uint32_t)0xCDEF89ABU) /*!< unlock key 1 */
/* wait state counter value */
#define WS_WSCNT_0 ((uint8_t)0x00U) /*!< 0 wait state added */
#define WS_WSCNT_1 ((uint8_t)0x01U) /*!< 1 wait state added */
#define WS_WSCNT_2 ((uint8_t)0x02U) /*!< 2 wait state added */
/* read protect configure */
#define FMC_NSPC ((uint16_t)0x5AA5U) /*!< no security protection */
#define FMC_LSPC ((uint16_t)0x44BBU) /*!< low security protection, any value except 0xA5 or 0xCC */
#define FMC_HSPC ((uint16_t)0x33CCU) /*!< high security protection */
#define LOW_16BITS_MASK ((uint32_t)0x0000FFFFU) /*!< low 16 bits mask */
#define HIGH_16BITS_MASK ((uint32_t)0xFFFF0000U) /*!< high 16 bits mask */
/* option byte address */
#define OB_SPC_USER_ADDRESS ((uint32_t)0x1FFFF800U) /*!< address of option byte security protection and user */
#define OB_DATA_ADDRESS ((uint32_t)0x1FFFF804U) /*!< address of option byte data */
#define OB_WP_ADDRESS ((uint32_t)0x1FFFF808U) /*!< address of option byte write protection */
/* option byte write protection */
#define OB_LWP ((uint32_t)0x000000FFU) /*!< write protection low bits */
#define OB_HWP ((uint32_t)0x0000FF00U) /*!< write protection high bits */
/* option byte software/hardware free watchdog timer */
#define OB_FWDGT_HW ((uint8_t)(~BIT(0))) /*!< hardware free watchdog timer */
#define OB_FWDGT_SW ((uint8_t)BIT(0)) /*!< software free watchdog timer */
/* option byte reset or not entering deep sleep mode */
#define OB_DEEPSLEEP_RST ((uint8_t)(~BIT(1))) /*!< generate a reset instead of entering deepsleep mode */
#define OB_DEEPSLEEP_NRST ((uint8_t)BIT(1)) /*!< no reset when entering deepsleep mode */
/* option byte reset or not entering standby mode */
#define OB_STDBY_RST ((uint8_t)(~BIT(2))) /*!< generate a reset instead of entering standby mode */
#define OB_STDBY_NRST ((uint8_t)BIT(2)) /*!< no reset when entering deepsleep mode */
/* option byte OB_BOOT1_n set */
#define OB_BOOT1_SET_1 ((uint8_t)(~BIT(4))) /*!< BOOT1 bit is 1 */
#define OB_BOOT1_SET_0 ((uint8_t)BIT(4)) /*!< BOOT1 bit is 0 */
/* option byte VDDA monitor enable/disable */
#define OB_VDDA_DISABLE ((uint8_t)(~BIT(5))) /*!< disable VDDA monitor */
#define OB_VDDA_ENABLE ((uint8_t)BIT(5)) /*!< enable VDDA monitor */
/* option byte SRAM parity enable/disable */
#define OB_SRAM_PARITY_ENABLE ((uint8_t)(~BIT(6))) /*!< enable SRAM parity check */
#define OB_SRAM_PARITY_DISABLE ((uint8_t)BIT(6)) /*!< disable SRAM parity check */
/* option byte security protection level in FMC_OBSTAT register */
#define OB_OBSTAT_PLEVEL_NO ((uint8_t)0x00U) /*!< no security protection */
#define OB_OBSTAT_PLEVEL_LOW ((uint8_t)0x02U) /*!< low security protection */
#define OB_OBSTAT_PLEVEL_HIGH ((uint8_t)0x06U) /*!< high security protection */
/* option byte user mask */
#define OB_USER_MASK ((uint8_t)0x88U) /*!< OB_USER reserved bit mask */
/* option byte data address */
#define OB_DATA_ADDR0 ((uint32_t)0x1FFFF804U) /*!< option byte data address 0 */
#define OB_DATA_ADDR1 ((uint32_t)0x1FFFF806U) /*!< option byte data address 1 */
/* FMC flags */
#define FMC_FLAG_BUSY FMC_STAT_BUSY /*!< FMC busy flag */
#define FMC_FLAG_PGERR FMC_STAT_PGERR /*!< FMC programming error flag */
#define FMC_FLAG_PGAERR FMC_STAT_PGAERR /*!< FMC program alignment error flag */
#define FMC_FLAG_WPERR FMC_STAT_WPERR /*!< FMC write protection error flag */
#define FMC_FLAG_END FMC_STAT_ENDF /*!< FMC end of programming flag */
/* FMC interrupt flags */
#define FMC_INT_FLAG_PGERR FMC_STAT_PGERR /*!< FMC programming error flag */
#define FMC_INT_FLAG_PGAERR FMC_STAT_PGAERR /*!< FMC program alignment error flag */
#define FMC_INT_FLAG_WPERR FMC_STAT_WPERR /*!< FMC write protection error flag */
#define FMC_INT_FLAG_END FMC_STAT_ENDF /*!< FMC end of programming flag */
/* FMC interrupt enable */
#define FMC_INTEN_END FMC_CTL_ENDIE /*!< enable FMC end of operation interrupt */
#define FMC_INTEN_ERR FMC_CTL_ERRIE /*!< enable FMC error interrupt */
/* FMC time out */
#define FMC_TIMEOUT_COUNT ((uint32_t)0x000F0000U) /*!< count to judge of FMC timeout */
/* function declarations */
/* FMC main memory programming functions */
/* unlock the main FMC operation */
void fmc_unlock(void);
/* lock the main FMC operation */
void fmc_lock(void);
/* set the wait state counter value */
void fmc_wscnt_set(uint8_t wscnt);
/* pre-fetch enable */
void fmc_prefetch_enable(void);
/* pre-fetch disable */
void fmc_prefetch_disable(void);
/* FMC erase page */
fmc_state_enum fmc_page_erase(uint32_t page_address);
/* FMC erase whole chip */
fmc_state_enum fmc_mass_erase(void);
/* FMC program a double word at the corresponding address */
fmc_state_enum fmc_doubleword_program(uint32_t address, uint64_t data);
/* FMC program a word at the corresponding address */
fmc_state_enum fmc_word_program(uint32_t address, uint32_t data);
/* FMC option bytes programming functions */
/* unlock the option byte operation */
void ob_unlock(void);
/* lock the option byte operation */
void ob_lock(void);
/* reload the option byte and generate a system reset */
void ob_reset(void);
/* get option byte value */
uint32_t option_byte_value_get(uint32_t addr);
/* erase option byte */
fmc_state_enum ob_erase(void);
/* enable option byte write protection (OB_WP) */
fmc_state_enum ob_write_protection_enable(uint32_t ob_wp);
/* configure read out protect */
fmc_state_enum ob_security_protection_config(uint16_t ob_spc);
/* write the FMC option byte user */
fmc_state_enum ob_user_write(uint8_t ob_user);
/* write the FMC option byte data */
fmc_state_enum ob_data_program(uint16_t data);
/* get the FMC option byte OB_USER */
uint8_t ob_user_get(void);
/* get the FMC option byte OB_DATA */
uint16_t ob_data_get(void);
/* get the FMC option byte write protection */
uint32_t ob_write_protection_get(void);
/* get the value of FMC option byte security protection level (PLEVEL) in FMC_OBSTAT register */
uint32_t ob_obstat_plevel_get(void);
/* FMC interrupts and flags management functions */
/* enable FMC interrupt */
void fmc_interrupt_enable(uint32_t interrupt);
/* disable FMC interrupt */
void fmc_interrupt_disable(uint32_t interrupt);
/* get flag set or reset */
FlagStatus fmc_flag_get(uint32_t flag);
/* clear the FMC pending flag */
void fmc_flag_clear(uint32_t flag);
/* get intrrupt flag set or reset */
FlagStatus fmc_interrupt_flag_get(uint32_t int_flag);
/* clear the FMC interrupt pending flag by writing 1 */
void fmc_interrupt_flag_clear(uint32_t int_flag);
/* return the FMC state */
fmc_state_enum fmc_state_get(void);
/* check FMC ready or not */
fmc_state_enum fmc_ready_wait(uint32_t timeout);
#endif /* GD32E23X_FMC_H */

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/*!
\file gd32e23x_fwdgt.h
\brief definitions for the FWDGT
\version 2024-02-22, V2.1.0, firmware for GD32E23x
*/
/*
Copyright (c) 2024, GigaDevice Semiconductor Inc.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.
*/
#ifndef GD32E23X_FWDGT_H
#define GD32E23X_FWDGT_H
#include "gd32e23x.h"
/* FWDGT definitions */
#define FWDGT FWDGT_BASE
/* registers definitions */
#define FWDGT_CTL REG32((FWDGT) + 0x00000000U) /*!< FWDGT control register */
#define FWDGT_PSC REG32((FWDGT) + 0x00000004U) /*!< FWDGT prescaler register */
#define FWDGT_RLD REG32((FWDGT) + 0x00000008U) /*!< FWDGT reload register */
#define FWDGT_STAT REG32((FWDGT) + 0x0000000CU) /*!< FWDGT status register */
#define FWDGT_WND REG32((FWDGT) + 0x00000010U) /*!< FWDGT window register */
/* bits definitions */
/* FWDGT_CTL */
#define FWDGT_CTL_CMD BITS(0,15) /*!< FWDGT command value */
/* FWDGT_PSC */
#define FWDGT_PSC_PSC BITS(0,2) /*!< FWDGT prescaler divider value */
/* FWDGT_RLD */
#define FWDGT_RLD_RLD BITS(0,11) /*!< FWDGT counter reload value */
/* FWDGT_STAT */
#define FWDGT_STAT_PUD BIT(0) /*!< FWDGT prescaler divider value update */
#define FWDGT_STAT_RUD BIT(1) /*!< FWDGT counter reload value update */
#define FWDGT_STAT_WUD BIT(2) /*!< FWDGT counter window value update */
/* FWDGT_WND */
#define FWDGT_WND_WND BITS(0,11) /*!< FWDGT counter window value */
/* constants definitions */
/* FWDGT_PSC register value */
#define PSC_PSC(regval) (BITS(0,2) & ((uint32_t)(regval) << 0U))
#define FWDGT_PSC_DIV4 ((uint8_t)PSC_PSC(0)) /*!< FWDGT prescaler set to 4 */
#define FWDGT_PSC_DIV8 ((uint8_t)PSC_PSC(1)) /*!< FWDGT prescaler set to 8 */
#define FWDGT_PSC_DIV16 ((uint8_t)PSC_PSC(2)) /*!< FWDGT prescaler set to 16 */
#define FWDGT_PSC_DIV32 ((uint8_t)PSC_PSC(3)) /*!< FWDGT prescaler set to 32 */
#define FWDGT_PSC_DIV64 ((uint8_t)PSC_PSC(4)) /*!< FWDGT prescaler set to 64 */
#define FWDGT_PSC_DIV128 ((uint8_t)PSC_PSC(5)) /*!< FWDGT prescaler set to 128 */
#define FWDGT_PSC_DIV256 ((uint8_t)PSC_PSC(6)) /*!< FWDGT prescaler set to 256 */
/* control value */
#define FWDGT_WRITEACCESS_ENABLE ((uint16_t)0x00005555U) /*!< FWDGT_CTL bits write access enable value */
#define FWDGT_WRITEACCESS_DISABLE ((uint16_t)0x00000000U) /*!< FWDGT_CTL bits write access disable value */
#define FWDGT_KEY_RELOAD ((uint16_t)0x0000AAAAU) /*!< FWDGT_CTL bits fwdgt counter reload value */
#define FWDGT_KEY_ENABLE ((uint16_t)0x0000CCCCU) /*!< FWDGT_CTL bits fwdgt counter enable value */
/* FWDGT timeout value */
#define FWDGT_WND_TIMEOUT ((uint32_t)0x000FFFFFU) /*!< FWDGT_WND register write operation state flag timeout */
#define FWDGT_PSC_TIMEOUT ((uint32_t)0x000FFFFFU) /*!< FWDGT_PSC register write operation state flag timeout */
#define FWDGT_RLD_TIMEOUT ((uint32_t)0x000FFFFFU) /*!< FWDGT_RLD register write operation state flag timeout */
/* FWDGT flag definitions */
#define FWDGT_FLAG_PUD FWDGT_STAT_PUD /*!< a write operation to FWDGT_PSC register is on going */
#define FWDGT_FLAG_RUD FWDGT_STAT_RUD /*!< a write operation to FWDGT_RLD register is on going */
#define FWDGT_FLAG_WUD FWDGT_STAT_WUD /*!< a write operation to FWDGT_WND register is on going */
/* write value to FWDGT_RLD_RLD bit field */
#define RLD_RLD(regval) (BITS(0,11) & ((uint32_t)(regval) << 0))
/* write value to FWDGT_WND_WND bit field */
#define WND_WND(regval) (BITS(0,11) & ((uint32_t)(regval) << 0U))
/* function declarations */
/* enable write access to FWDGT_PSC and FWDGT_RLD and FWDGT_WND */
void fwdgt_write_enable(void);
/* disable write access to FWDGT_PSC,FWDGT_RLD and FWDGT_WND */
void fwdgt_write_disable(void);
/* start the free watchdog timer counter */
void fwdgt_enable(void);
/* configure the free watchdog timer counter prescaler value */
ErrStatus fwdgt_prescaler_value_config(uint16_t prescaler_value);
/* configure the free watchdog timer counter reload value */
ErrStatus fwdgt_reload_value_config(uint16_t reload_value);
/* configure the free watchdog timer counter window value */
ErrStatus fwdgt_window_value_config(uint16_t window_value);
/* reload the counter of FWDGT */
void fwdgt_counter_reload(void);
/* configure counter reload value, and prescaler divider value */
ErrStatus fwdgt_config(uint16_t reload_value, uint8_t prescaler_div);
/* get flag state of FWDGT */
FlagStatus fwdgt_flag_get(uint16_t flag);
#endif /* GD32E23X_FWDGT_H */

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/*!
\file gd32e23x_gpio.h
\brief definitions for the GPIO
\version 2024-02-22, V2.1.0, firmware for GD32E23x
*/
/*
Copyright (c) 2024, GigaDevice Semiconductor Inc.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.
*/
#ifndef GD32E23X_GPIO_H
#define GD32E23X_GPIO_H
#include "gd32e23x.h"
/* GPIOx(x=A,B,C,F) definitions */
#define GPIOA (GPIO_BASE + 0x00000000U)
#define GPIOB (GPIO_BASE + 0x00000400U)
#define GPIOC (GPIO_BASE + 0x00000800U)
#define GPIOF (GPIO_BASE + 0x00001400U)
/* registers definitions */
#define GPIO_CTL(gpiox) REG32((gpiox) + 0x00U) /*!< GPIO port control register */
#define GPIO_OMODE(gpiox) REG32((gpiox) + 0x04U) /*!< GPIO port output mode register */
#define GPIO_OSPD(gpiox) REG32((gpiox) + 0x08U) /*!< GPIO port output speed register */
#define GPIO_PUD(gpiox) REG32((gpiox) + 0x0CU) /*!< GPIO port pull-up/pull-down register */
#define GPIO_ISTAT(gpiox) REG32((gpiox) + 0x10U) /*!< GPIO port input status register */
#define GPIO_OCTL(gpiox) REG32((gpiox) + 0x14U) /*!< GPIO port output control register */
#define GPIO_BOP(gpiox) REG32((gpiox) + 0x18U) /*!< GPIO port bit operation register */
#define GPIO_LOCK(gpiox) REG32((gpiox) + 0x1CU) /*!< GPIO port configuration lock register */
#define GPIO_AFSEL0(gpiox) REG32((gpiox) + 0x20U) /*!< GPIO alternate function selected register 0 */
#define GPIO_AFSEL1(gpiox) REG32((gpiox) + 0x24U) /*!< GPIO alternate function selected register 1 */
#define GPIO_BC(gpiox) REG32((gpiox) + 0x28U) /*!< GPIO bit clear register */
#define GPIO_TG(gpiox) REG32((gpiox) + 0x2CU) /*!< GPIO port bit toggle register */
/* bits definitions */
/* GPIO_CTL */
#define GPIO_CTL_CTL0 BITS(0,1) /*!< pin 0 configuration bits */
#define GPIO_CTL_CTL1 BITS(2,3) /*!< pin 1 configuration bits */
#define GPIO_CTL_CTL2 BITS(4,5) /*!< pin 2 configuration bits */
#define GPIO_CTL_CTL3 BITS(6,7) /*!< pin 3 configuration bits */
#define GPIO_CTL_CTL4 BITS(8,9) /*!< pin 4 configuration bits */
#define GPIO_CTL_CTL5 BITS(10,11) /*!< pin 5 configuration bits */
#define GPIO_CTL_CTL6 BITS(12,13) /*!< pin 6 configuration bits */
#define GPIO_CTL_CTL7 BITS(14,15) /*!< pin 7 configuration bits */
#define GPIO_CTL_CTL8 BITS(16,17) /*!< pin 8 configuration bits */
#define GPIO_CTL_CTL9 BITS(18,19) /*!< pin 9 configuration bits */
#define GPIO_CTL_CTL10 BITS(20,21) /*!< pin 10 configuration bits */
#define GPIO_CTL_CTL11 BITS(22,23) /*!< pin 11 configuration bits */
#define GPIO_CTL_CTL12 BITS(24,25) /*!< pin 12 configuration bits */
#define GPIO_CTL_CTL13 BITS(26,27) /*!< pin 13 configuration bits */
#define GPIO_CTL_CTL14 BITS(28,29) /*!< pin 14 configuration bits */
#define GPIO_CTL_CTL15 BITS(30,31) /*!< pin 15 configuration bits */
/* GPIO_OMODE */
#define GPIO_OMODE_OM0 BIT(0) /*!< pin 0 output mode bit */
#define GPIO_OMODE_OM1 BIT(1) /*!< pin 1 output mode bit */
#define GPIO_OMODE_OM2 BIT(2) /*!< pin 2 output mode bit */
#define GPIO_OMODE_OM3 BIT(3) /*!< pin 3 output mode bit */
#define GPIO_OMODE_OM4 BIT(4) /*!< pin 4 output mode bit */
#define GPIO_OMODE_OM5 BIT(5) /*!< pin 5 output mode bit */
#define GPIO_OMODE_OM6 BIT(6) /*!< pin 6 output mode bit */
#define GPIO_OMODE_OM7 BIT(7) /*!< pin 7 output mode bit */
#define GPIO_OMODE_OM8 BIT(8) /*!< pin 8 output mode bit */
#define GPIO_OMODE_OM9 BIT(9) /*!< pin 9 output mode bit */
#define GPIO_OMODE_OM10 BIT(10) /*!< pin 10 output mode bit */
#define GPIO_OMODE_OM11 BIT(11) /*!< pin 11 output mode bit */
#define GPIO_OMODE_OM12 BIT(12) /*!< pin 12 output mode bit */
#define GPIO_OMODE_OM13 BIT(13) /*!< pin 13 output mode bit */
#define GPIO_OMODE_OM14 BIT(14) /*!< pin 14 output mode bit */
#define GPIO_OMODE_OM15 BIT(15) /*!< pin 15 output mode bit */
/* GPIO_OSPD */
#define GPIO_OSPD_OSPD0 BITS(0,1) /*!< pin 0 output max speed bits */
#define GPIO_OSPD_OSPD1 BITS(2,3) /*!< pin 1 output max speed bits */
#define GPIO_OSPD_OSPD2 BITS(4,5) /*!< pin 2 output max speed bits */
#define GPIO_OSPD_OSPD3 BITS(6,7) /*!< pin 3 output max speed bits */
#define GPIO_OSPD_OSPD4 BITS(8,9) /*!< pin 4 output max speed bits */
#define GPIO_OSPD_OSPD5 BITS(10,11) /*!< pin 5 output max speed bits */
#define GPIO_OSPD_OSPD6 BITS(12,13) /*!< pin 6 output max speed bits */
#define GPIO_OSPD_OSPD7 BITS(14,15) /*!< pin 7 output max speed bits */
#define GPIO_OSPD_OSPD8 BITS(16,17) /*!< pin 8 output max speed bits */
#define GPIO_OSPD_OSPD9 BITS(18,19) /*!< pin 9 output max speed bits */
#define GPIO_OSPD_OSPD10 BITS(20,21) /*!< pin 10 output max speed bits */
#define GPIO_OSPD_OSPD11 BITS(22,23) /*!< pin 11 output max speed bits */
#define GPIO_OSPD_OSPD12 BITS(24,25) /*!< pin 12 output max speed bits */
#define GPIO_OSPD_OSPD13 BITS(26,27) /*!< pin 13 output max speed bits */
#define GPIO_OSPD_OSPD14 BITS(28,29) /*!< pin 14 output max speed bits */
#define GPIO_OSPD_OSPD15 BITS(30,31) /*!< pin 15 output max speed bits */
/* GPIO_PUD */
#define GPIO_PUD_PUD0 BITS(0,1) /*!< pin 0 pull-up or pull-down bits */
#define GPIO_PUD_PUD1 BITS(2,3) /*!< pin 1 pull-up or pull-down bits */
#define GPIO_PUD_PUD2 BITS(4,5) /*!< pin 2 pull-up or pull-down bits */
#define GPIO_PUD_PUD3 BITS(6,7) /*!< pin 3 pull-up or pull-down bits */
#define GPIO_PUD_PUD4 BITS(8,9) /*!< pin 4 pull-up or pull-down bits */
#define GPIO_PUD_PUD5 BITS(10,11) /*!< pin 5 pull-up or pull-down bits */
#define GPIO_PUD_PUD6 BITS(12,13) /*!< pin 6 pull-up or pull-down bits */
#define GPIO_PUD_PUD7 BITS(14,15) /*!< pin 7 pull-up or pull-down bits */
#define GPIO_PUD_PUD8 BITS(16,17) /*!< pin 8 pull-up or pull-down bits */
#define GPIO_PUD_PUD9 BITS(18,19) /*!< pin 9 pull-up or pull-down bits */
#define GPIO_PUD_PUD10 BITS(20,21) /*!< pin 10 pull-up or pull-down bits */
#define GPIO_PUD_PUD11 BITS(22,23) /*!< pin 11 pull-up or pull-down bits */
#define GPIO_PUD_PUD12 BITS(24,25) /*!< pin 12 pull-up or pull-down bits */
#define GPIO_PUD_PUD13 BITS(26,27) /*!< pin 13 pull-up or pull-down bits */
#define GPIO_PUD_PUD14 BITS(28,29) /*!< pin 14 pull-up or pull-down bits */
#define GPIO_PUD_PUD15 BITS(30,31) /*!< pin 15 pull-up or pull-down bits */
/* GPIO_ISTAT */
#define GPIO_ISTAT_ISTAT0 BIT(0) /*!< pin 0 input status */
#define GPIO_ISTAT_ISTAT1 BIT(1) /*!< pin 1 input status */
#define GPIO_ISTAT_ISTAT2 BIT(2) /*!< pin 2 input status */
#define GPIO_ISTAT_ISTAT3 BIT(3) /*!< pin 3 input status */
#define GPIO_ISTAT_ISTAT4 BIT(4) /*!< pin 4 input status */
#define GPIO_ISTAT_ISTAT5 BIT(5) /*!< pin 5 input status */
#define GPIO_ISTAT_ISTAT6 BIT(6) /*!< pin 6 input status */
#define GPIO_ISTAT_ISTAT7 BIT(7) /*!< pin 7 input status */
#define GPIO_ISTAT_ISTAT8 BIT(8) /*!< pin 8 input status */
#define GPIO_ISTAT_ISTAT9 BIT(9) /*!< pin 9 input status */
#define GPIO_ISTAT_ISTAT10 BIT(10) /*!< pin 10 input status */
#define GPIO_ISTAT_ISTAT11 BIT(11) /*!< pin 11 input status */
#define GPIO_ISTAT_ISTAT12 BIT(12) /*!< pin 12 input status */
#define GPIO_ISTAT_ISTAT13 BIT(13) /*!< pin 13 input status */
#define GPIO_ISTAT_ISTAT14 BIT(14) /*!< pin 14 input status */
#define GPIO_ISTAT_ISTAT15 BIT(15) /*!< pin 15 input status */
/* GPIO_OCTL */
#define GPIO_OCTL_OCTL0 BIT(0) /*!< pin 0 output bit */
#define GPIO_OCTL_OCTL1 BIT(1) /*!< pin 1 output bit */
#define GPIO_OCTL_OCTL2 BIT(2) /*!< pin 2 output bit */
#define GPIO_OCTL_OCTL3 BIT(3) /*!< pin 3 output bit */
#define GPIO_OCTL_OCTL4 BIT(4) /*!< pin 4 output bit */
#define GPIO_OCTL_OCTL5 BIT(5) /*!< pin 5 output bit */
#define GPIO_OCTL_OCTL6 BIT(6) /*!< pin 6 output bit */
#define GPIO_OCTL_OCTL7 BIT(7) /*!< pin 7 output bit */
#define GPIO_OCTL_OCTL8 BIT(8) /*!< pin 8 output bit */
#define GPIO_OCTL_OCTL9 BIT(9) /*!< pin 9 output bit */
#define GPIO_OCTL_OCTL10 BIT(10) /*!< pin 10 output bit */
#define GPIO_OCTL_OCTL11 BIT(11) /*!< pin 11 output bit */
#define GPIO_OCTL_OCTL12 BIT(12) /*!< pin 12 output bit */
#define GPIO_OCTL_OCTL13 BIT(13) /*!< pin 13 output bit */
#define GPIO_OCTL_OCTL14 BIT(14) /*!< pin 14 output bit */
#define GPIO_OCTL_OCTL15 BIT(15) /*!< pin 15 output bit */
/* GPIO_BOP */
#define GPIO_BOP_BOP0 BIT(0) /*!< pin 0 set bit */
#define GPIO_BOP_BOP1 BIT(1) /*!< pin 1 set bit */
#define GPIO_BOP_BOP2 BIT(2) /*!< pin 2 set bit */
#define GPIO_BOP_BOP3 BIT(3) /*!< pin 3 set bit */
#define GPIO_BOP_BOP4 BIT(4) /*!< pin 4 set bit */
#define GPIO_BOP_BOP5 BIT(5) /*!< pin 5 set bit */
#define GPIO_BOP_BOP6 BIT(6) /*!< pin 6 set bit */
#define GPIO_BOP_BOP7 BIT(7) /*!< pin 7 set bit */
#define GPIO_BOP_BOP8 BIT(8) /*!< pin 8 set bit */
#define GPIO_BOP_BOP9 BIT(9) /*!< pin 9 set bit */
#define GPIO_BOP_BOP10 BIT(10) /*!< pin 10 set bit */
#define GPIO_BOP_BOP11 BIT(11) /*!< pin 11 set bit */
#define GPIO_BOP_BOP12 BIT(12) /*!< pin 12 set bit */
#define GPIO_BOP_BOP13 BIT(13) /*!< pin 13 set bit */
#define GPIO_BOP_BOP14 BIT(14) /*!< pin 14 set bit */
#define GPIO_BOP_BOP15 BIT(15) /*!< pin 15 set bit */
#define GPIO_BOP_CR0 BIT(16) /*!< pin 0 clear bit */
#define GPIO_BOP_CR1 BIT(17) /*!< pin 1 clear bit */
#define GPIO_BOP_CR2 BIT(18) /*!< pin 2 clear bit */
#define GPIO_BOP_CR3 BIT(19) /*!< pin 3 clear bit */
#define GPIO_BOP_CR4 BIT(20) /*!< pin 4 clear bit */
#define GPIO_BOP_CR5 BIT(21) /*!< pin 5 clear bit */
#define GPIO_BOP_CR6 BIT(22) /*!< pin 6 clear bit */
#define GPIO_BOP_CR7 BIT(23) /*!< pin 7 clear bit */
#define GPIO_BOP_CR8 BIT(24) /*!< pin 8 clear bit */
#define GPIO_BOP_CR9 BIT(25) /*!< pin 9 clear bit */
#define GPIO_BOP_CR10 BIT(26) /*!< pin 10 clear bit */
#define GPIO_BOP_CR11 BIT(27) /*!< pin 11 clear bit */
#define GPIO_BOP_CR12 BIT(28) /*!< pin 12 clear bit */
#define GPIO_BOP_CR13 BIT(29) /*!< pin 13 clear bit */
#define GPIO_BOP_CR14 BIT(30) /*!< pin 14 clear bit */
#define GPIO_BOP_CR15 BIT(31) /*!< pin 15 clear bit */
/* GPIO_LOCK */
#define GPIO_LOCK_LK0 BIT(0) /*!< pin 0 lock bit */
#define GPIO_LOCK_LK1 BIT(1) /*!< pin 1 lock bit */
#define GPIO_LOCK_LK2 BIT(2) /*!< pin 2 lock bit */
#define GPIO_LOCK_LK3 BIT(3) /*!< pin 3 lock bit */
#define GPIO_LOCK_LK4 BIT(4) /*!< pin 4 lock bit */
#define GPIO_LOCK_LK5 BIT(5) /*!< pin 5 lock bit */
#define GPIO_LOCK_LK6 BIT(6) /*!< pin 6 lock bit */
#define GPIO_LOCK_LK7 BIT(7) /*!< pin 7 lock bit */
#define GPIO_LOCK_LK8 BIT(8) /*!< pin 8 lock bit */
#define GPIO_LOCK_LK9 BIT(9) /*!< pin 9 lock bit */
#define GPIO_LOCK_LK10 BIT(10) /*!< pin 10 lock bit */
#define GPIO_LOCK_LK11 BIT(11) /*!< pin 11 lock bit */
#define GPIO_LOCK_LK12 BIT(12) /*!< pin 12 lock bit */
#define GPIO_LOCK_LK13 BIT(13) /*!< pin 13 lock bit */
#define GPIO_LOCK_LK14 BIT(14) /*!< pin 14 lock bit */
#define GPIO_LOCK_LK15 BIT(15) /*!< pin 15 lock bit */
#define GPIO_LOCK_LKK BIT(16) /*!< pin sequence lock key */
/* GPIO_AFSEL0 */
#define GPIO_AFSEL0_SEL0 BITS(0,3) /*!< pin 0 alternate function selected */
#define GPIO_AFSEL0_SEL1 BITS(4,7) /*!< pin 1 alternate function selected */
#define GPIO_AFSEL0_SEL2 BITS(8,11) /*!< pin 2 alternate function selected */
#define GPIO_AFSEL0_SEL3 BITS(12,15) /*!< pin 3 alternate function selected */
#define GPIO_AFSEL0_SEL4 BITS(16,19) /*!< pin 4 alternate function selected */
#define GPIO_AFSEL0_SEL5 BITS(20,23) /*!< pin 5 alternate function selected */
#define GPIO_AFSEL0_SEL6 BITS(24,27) /*!< pin 6 alternate function selected */
#define GPIO_AFSEL0_SEL7 BITS(28,31) /*!< pin 7 alternate function selected */
/* GPIO_AFSEL1 */
#define GPIO_AFSEL1_SEL8 BITS(0,3) /*!< pin 8 alternate function selected */
#define GPIO_AFSEL1_SEL9 BITS(4,7) /*!< pin 9 alternate function selected */
#define GPIO_AFSEL1_SEL10 BITS(8,11) /*!< pin 10 alternate function selected */
#define GPIO_AFSEL1_SEL11 BITS(12,15) /*!< pin 11 alternate function selected */
#define GPIO_AFSEL1_SEL12 BITS(16,19) /*!< pin 12 alternate function selected */
#define GPIO_AFSEL1_SEL13 BITS(20,23) /*!< pin 13 alternate function selected */
#define GPIO_AFSEL1_SEL14 BITS(24,27) /*!< pin 14 alternate function selected */
#define GPIO_AFSEL1_SEL15 BITS(28,31) /*!< pin 15 alternate function selected */
/* GPIO_BC */
#define GPIO_BC_CR0 BIT(0) /*!< pin 0 clear bit */
#define GPIO_BC_CR1 BIT(1) /*!< pin 1 clear bit */
#define GPIO_BC_CR2 BIT(2) /*!< pin 2 clear bit */
#define GPIO_BC_CR3 BIT(3) /*!< pin 3 clear bit */
#define GPIO_BC_CR4 BIT(4) /*!< pin 4 clear bit */
#define GPIO_BC_CR5 BIT(5) /*!< pin 5 clear bit */
#define GPIO_BC_CR6 BIT(6) /*!< pin 6 clear bit */
#define GPIO_BC_CR7 BIT(7) /*!< pin 7 clear bit */
#define GPIO_BC_CR8 BIT(8) /*!< pin 8 clear bit */
#define GPIO_BC_CR9 BIT(9) /*!< pin 9 clear bit */
#define GPIO_BC_CR10 BIT(10) /*!< pin 10 clear bit */
#define GPIO_BC_CR11 BIT(11) /*!< pin 11 clear bit */
#define GPIO_BC_CR12 BIT(12) /*!< pin 12 clear bit */
#define GPIO_BC_CR13 BIT(13) /*!< pin 13 clear bit */
#define GPIO_BC_CR14 BIT(14) /*!< pin 14 clear bit */
#define GPIO_BC_CR15 BIT(15) /*!< pin 15 clear bit */
/* GPIO_TG */
#define GPIO_TG_TG0 BIT(0) /*!< pin 0 toggle bit */
#define GPIO_TG_TG1 BIT(1) /*!< pin 1 toggle bit */
#define GPIO_TG_TG2 BIT(2) /*!< pin 2 toggle bit */
#define GPIO_TG_TG3 BIT(3) /*!< pin 3 toggle bit */
#define GPIO_TG_TG4 BIT(4) /*!< pin 4 toggle bit */
#define GPIO_TG_TG5 BIT(5) /*!< pin 5 toggle bit */
#define GPIO_TG_TG6 BIT(6) /*!< pin 6 toggle bit */
#define GPIO_TG_TG7 BIT(7) /*!< pin 7 toggle bit */
#define GPIO_TG_TG8 BIT(8) /*!< pin 8 toggle bit */
#define GPIO_TG_TG9 BIT(9) /*!< pin 9 toggle bit */
#define GPIO_TG_TG10 BIT(10) /*!< pin 10 toggle bit */
#define GPIO_TG_TG11 BIT(11) /*!< pin 11 toggle bit */
#define GPIO_TG_TG12 BIT(12) /*!< pin 12 toggle bit */
#define GPIO_TG_TG13 BIT(13) /*!< pin 13 toggle bit */
#define GPIO_TG_TG14 BIT(14) /*!< pin 14 toggle bit */
#define GPIO_TG_TG15 BIT(15) /*!< pin 15 toggle bit */
/* constants definitions */
typedef FlagStatus bit_status;
/* output mode definitions */
#define CTL_CLTR(regval) (BITS(0,1) & ((uint32_t)(regval) << 0))
#define GPIO_MODE_INPUT CTL_CLTR(0) /*!< input mode */
#define GPIO_MODE_OUTPUT CTL_CLTR(1) /*!< output mode */
#define GPIO_MODE_AF CTL_CLTR(2) /*!< alternate function mode */
#define GPIO_MODE_ANALOG CTL_CLTR(3) /*!< analog mode */
/* pull-up/pull-down definitions */
#define PUD_PUPD(regval) (BITS(0,1) & ((uint32_t)(regval) << 0))
#define GPIO_PUPD_NONE PUD_PUPD(0) /*!< floating mode, no pull-up and pull-down resistors */
#define GPIO_PUPD_PULLUP PUD_PUPD(1) /*!< with pull-up resistor */
#define GPIO_PUPD_PULLDOWN PUD_PUPD(2) /*!< with pull-down resistor */
/* GPIO pin definitions */
#define GPIO_PIN_0 BIT(0) /*!< GPIO pin 0 */
#define GPIO_PIN_1 BIT(1) /*!< GPIO pin 1 */
#define GPIO_PIN_2 BIT(2) /*!< GPIO pin 2 */
#define GPIO_PIN_3 BIT(3) /*!< GPIO pin 3 */
#define GPIO_PIN_4 BIT(4) /*!< GPIO pin 4 */
#define GPIO_PIN_5 BIT(5) /*!< GPIO pin 5 */
#define GPIO_PIN_6 BIT(6) /*!< GPIO pin 6 */
#define GPIO_PIN_7 BIT(7) /*!< GPIO pin 7 */
#define GPIO_PIN_8 BIT(8) /*!< GPIO pin 8 */
#define GPIO_PIN_9 BIT(9) /*!< GPIO pin 9 */
#define GPIO_PIN_10 BIT(10) /*!< GPIO pin 10 */
#define GPIO_PIN_11 BIT(11) /*!< GPIO pin 11 */
#define GPIO_PIN_12 BIT(12) /*!< GPIO pin 12 */
#define GPIO_PIN_13 BIT(13) /*!< GPIO pin 13 */
#define GPIO_PIN_14 BIT(14) /*!< GPIO pin 14 */
#define GPIO_PIN_15 BIT(15) /*!< GPIO pin 15 */
#define GPIO_PIN_ALL BITS(0,15) /*!< GPIO pin all */
/* GPIO mode configuration values */
#define GPIO_MODE_SET(n, mode) ((uint32_t)((uint32_t)(mode) << (2U * (n))))
#define GPIO_MODE_MASK(n) (0x3U << (2U * (n)))
/* GPIO pull-up/pull-down values */
#define GPIO_PUPD_SET(n, pupd) ((uint32_t)((uint32_t)(pupd) << (2U * (n))))
#define GPIO_PUPD_MASK(n) (0x3U << (2U * (n)))
/* GPIO output speed values */
#define GPIO_OSPEED_SET(n, speed) ((uint32_t)((uint32_t)(speed) << (2U * (n))))
#define GPIO_OSPEED_MASK(n) (0x3U << (2U * (n)))
/* GPIO output type */
#define GPIO_OTYPE_PP ((uint8_t)(0x00U)) /*!< push pull mode */
#define GPIO_OTYPE_OD ((uint8_t)(0x01U)) /*!< open drain mode */
/* GPIO output max speed value */
#define OSPD_OSPD0(regval) (BITS(0,1) & ((uint32_t)(regval) << 0))
#define GPIO_OSPEED_2MHZ OSPD_OSPD0(0) /*!< output max speed 2MHz */
#define GPIO_OSPEED_10MHZ OSPD_OSPD0(1) /*!< output max speed 10MHz */
#define GPIO_OSPEED_50MHZ OSPD_OSPD0(3) /*!< output max speed 50MHz */
/* GPIO alternate function values */
#define GPIO_AFR_SET(n, af) ((uint32_t)((uint32_t)(af) << (4U * (n))))
#define GPIO_AFR_MASK(n) (0xFU << (4U * (n)))
/* GPIO alternate function */
#define AF(regval) (BITS(0,3) & ((uint32_t)(regval) << 0))
#define GPIO_AF_0 AF(0) /*!< alternate function 0 selected */
#define GPIO_AF_1 AF(1) /*!< alternate function 1 selected */
#define GPIO_AF_2 AF(2) /*!< alternate function 2 selected */
#define GPIO_AF_3 AF(3) /*!< alternate function 3 selected */
#define GPIO_AF_4 AF(4) /*!< alternate function 4 selected (port A,B only) */
#define GPIO_AF_5 AF(5) /*!< alternate function 5 selected (port A,B only) */
#define GPIO_AF_6 AF(6) /*!< alternate function 6 selected (port A,B only) */
#define GPIO_AF_7 AF(7) /*!< alternate function 7 selected (port A,B only) */
/* function declarations */
/* reset GPIO port */
void gpio_deinit(uint32_t gpio_periph);
/* set GPIO mode */
void gpio_mode_set(uint32_t gpio_periph, uint32_t mode, uint32_t pull_up_down, uint32_t pin);
/* set GPIO output type and speed */
void gpio_output_options_set(uint32_t gpio_periph, uint8_t otype, uint32_t speed, uint32_t pin);
/* set GPIO pin bit */
void gpio_bit_set(uint32_t gpio_periph, uint32_t pin);
/* reset GPIO pin bit */
void gpio_bit_reset(uint32_t gpio_periph, uint32_t pin);
/* write data to the specified GPIO pin */
void gpio_bit_write(uint32_t gpio_periph, uint32_t pin, bit_status bit_value);
/* write data to the specified GPIO port */
void gpio_port_write(uint32_t gpio_periph, uint16_t data);
/* get GPIO pin input status */
FlagStatus gpio_input_bit_get(uint32_t gpio_periph, uint32_t pin);
/* get GPIO port input status */
uint16_t gpio_input_port_get(uint32_t gpio_periph);
/* get GPIO pin output status */
FlagStatus gpio_output_bit_get(uint32_t gpio_periph, uint32_t pin);
/* get GPIO port output status */
uint16_t gpio_output_port_get(uint32_t gpio_periph);
/* set GPIO alternate function */
void gpio_af_set(uint32_t gpio_periph,uint32_t alt_func_num, uint32_t pin);
/* lock GPIO pin bit */
void gpio_pin_lock(uint32_t gpio_periph, uint32_t pin);
/* toggle GPIO pin status */
void gpio_bit_toggle(uint32_t gpio_periph, uint32_t pin);
/* toggle GPIO port status */
void gpio_port_toggle(uint32_t gpio_periph);
#endif /* GD32E23X_GPIO_H */

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/*!
\file gd32e23x_i2c.h
\brief definitions for the I2C
\version 2024-02-22, V2.1.0, firmware for GD32E23x
*/
/*
Copyright (c) 2024, GigaDevice Semiconductor Inc.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.
*/
#ifndef GD32E23X_I2C_H
#define GD32E23X_I2C_H
#include "gd32e23x.h"
/* I2Cx(x=0,1) definitions */
#define I2C0 I2C_BASE /*!< I2C0 base address */
#define I2C1 (I2C_BASE + 0x00000400U) /*!< I2C1 base address */
/* registers definitions */
#define I2C_CTL0(i2cx) REG32((i2cx) + 0x00000000U) /*!< I2C control register 0 */
#define I2C_CTL1(i2cx) REG32((i2cx) + 0x00000004U) /*!< I2C control register 1 */
#define I2C_SADDR0(i2cx) REG32((i2cx) + 0x00000008U) /*!< I2C slave address register 0 */
#define I2C_SADDR1(i2cx) REG32((i2cx) + 0x0000000CU) /*!< I2C slave address register 1 */
#define I2C_DATA(i2cx) REG32((i2cx) + 0x00000010U) /*!< I2C transfer buffer register */
#define I2C_STAT0(i2cx) REG32((i2cx) + 0x00000014U) /*!< I2C transfer status register 0 */
#define I2C_STAT1(i2cx) REG32((i2cx) + 0x00000018U) /*!< I2C transfer status register */
#define I2C_CKCFG(i2cx) REG32((i2cx) + 0x0000001CU) /*!< I2C clock configure register */
#define I2C_RT(i2cx) REG32((i2cx) + 0x00000020U) /*!< I2C rise time register */
#define I2C_SAMCS(i2cx) REG32((i2cx) + 0x00000080U) /*!< I2C SAM control and status register */
#define I2C_FMPCFG(i2cx) REG32((i2cx) + 0x00000090U) /*!< I2C fast mode plus configure register */
/* bits definitions */
/* I2Cx_CTL0 */
#define I2C_CTL0_I2CEN BIT(0) /*!< peripheral enable */
#define I2C_CTL0_SMBEN BIT(1) /*!< SMBus mode */
#define I2C_CTL0_SMBSEL BIT(3) /*!< SMBus type */
#define I2C_CTL0_ARPEN BIT(4) /*!< ARP enable */
#define I2C_CTL0_PECEN BIT(5) /*!< PEC enable */
#define I2C_CTL0_GCEN BIT(6) /*!< general call enable */
#define I2C_CTL0_SS BIT(7) /*!< clock stretching disable (slave mode) */
#define I2C_CTL0_START BIT(8) /*!< start generation */
#define I2C_CTL0_STOP BIT(9) /*!< stop generation */
#define I2C_CTL0_ACKEN BIT(10) /*!< acknowledge enable */
#define I2C_CTL0_POAP BIT(11) /*!< acknowledge/PEC position (for data reception) */
#define I2C_CTL0_PECTRANS BIT(12) /*!< packet error checking */
#define I2C_CTL0_SALT BIT(13) /*!< SMBus alert */
#define I2C_CTL0_SRESET BIT(15) /*!< software reset */
/* I2Cx_CTL1 */
#define I2C_CTL1_I2CCLK BITS(0,6) /*!< I2CCLK[6:0] bits (peripheral clock frequency) */
#define I2C_CTL1_ERRIE BIT(8) /*!< error interrupt enable */
#define I2C_CTL1_EVIE BIT(9) /*!< event interrupt enable */
#define I2C_CTL1_BUFIE BIT(10) /*!< buffer interrupt enable */
#define I2C_CTL1_DMAON BIT(11) /*!< DMA requests enable */
#define I2C_CTL1_DMALST BIT(12) /*!< DMA last transfer */
/* I2Cx_SADDR0 */
#define I2C_SADDR0_ADDRESS0 BIT(0) /*!< bit 0 of a 10-bit address */
#define I2C_SADDR0_ADDRESS BITS(1,7) /*!< 7-bit address or bits 7:1 of a 10-bit address */
#define I2C_SADDR0_ADDRESS_H BITS(8,9) /*!< highest two bits of a 10-bit address */
#define I2C_SADDR0_ADDFORMAT BIT(15) /*!< address mode for the I2C slave */
/* I2Cx_SADDR1 */
#define I2C_SADDR1_DUADEN BIT(0) /*!< aual-address mode switch */
#define I2C_SADDR1_ADDRESS2 BITS(1,7) /*!< second I2C address for the slave in dual-address mode */
/* I2Cx_DATA */
#define I2C_DATA_TRB BITS(0,7) /*!< 8-bit data register */
/* I2Cx_STAT0 */
#define I2C_STAT0_SBSEND BIT(0) /*!< start bit (master mode) */
#define I2C_STAT0_ADDSEND BIT(1) /*!< address sent (master mode)/matched (slave mode) */
#define I2C_STAT0_BTC BIT(2) /*!< byte transfer finished */
#define I2C_STAT0_ADD10SEND BIT(3) /*!< 10-bit header sent (master mode) */
#define I2C_STAT0_STPDET BIT(4) /*!< stop detection (slave mode) */
#define I2C_STAT0_RBNE BIT(6) /*!< data register not empty (receivers) */
#define I2C_STAT0_TBE BIT(7) /*!< data register empty (transmitters) */
#define I2C_STAT0_BERR BIT(8) /*!< bus error */
#define I2C_STAT0_LOSTARB BIT(9) /*!< arbitration lost (master mode) */
#define I2C_STAT0_AERR BIT(10) /*!< acknowledge failure */
#define I2C_STAT0_OUERR BIT(11) /*!< overrun/underrun */
#define I2C_STAT0_PECERR BIT(12) /*!< PEC error in reception */
#define I2C_STAT0_SMBTO BIT(14) /*!< timeout signal in SMBus mode */
#define I2C_STAT0_SMBALT BIT(15) /*!< SMBus alert status */
/* I2Cx_STAT1 */
#define I2C_STAT1_MASTER BIT(0) /*!< master/slave */
#define I2C_STAT1_I2CBSY BIT(1) /*!< bus busy */
#define I2C_STAT1_TR BIT(2) /*!< transmitter/receiver */
#define I2C_STAT1_RXGC BIT(4) /*!< general call address (slave mode) */
#define I2C_STAT1_DEFSMB BIT(5) /*!< SMBus device default address (slave mode) */
#define I2C_STAT1_HSTSMB BIT(6) /*!< SMBus host header (slave mode) */
#define I2C_STAT1_DUMODF BIT(7) /*!< dual flag (slave mode) */
#define I2C_STAT1_PECV BITS(8,15) /*!< packet error checking value */
/* I2Cx_CKCFG */
#define I2C_CKCFG_CLKC BITS(0,11) /*!< clock control register in fast/standard mode or fast mode plus(master mode) */
#define I2C_CKCFG_DTCY BIT(14) /*!< duty cycle of fast mode or fast mode plus */
#define I2C_CKCFG_FAST BIT(15) /*!< I2C speed selection in master mode */
/* I2Cx_RT */
#define I2C_RT_RISETIME BITS(0,6) /*!< maximum rise time in fast/standard mode or fast mode plus(master mode) */
/* I2Cx_SAMCS */
#define I2C_SAMCS_SAMEN BIT(0) /*!< SAM_V interface enable */
#define I2C_SAMCS_STOEN BIT(1) /*!< SAM_V interface timeout detect enable */
#define I2C_SAMCS_TFFIE BIT(4) /*!< txframe fall interrupt enable */
#define I2C_SAMCS_TFRIE BIT(5) /*!< txframe rise interrupt enable */
#define I2C_SAMCS_RFFIE BIT(6) /*!< rxframe fall interrupt enable */
#define I2C_SAMCS_RFRIE BIT(7) /*!< rxframe rise interrupt enable */
#define I2C_SAMCS_TXF BIT(8) /*!< level of txframe signal */
#define I2C_SAMCS_RXF BIT(9) /*!< level of rxframe signal */
#define I2C_SAMCS_TFF BIT(12) /*!< txframe fall flag */
#define I2C_SAMCS_TFR BIT(13) /*!< txframe rise flag */
#define I2C_SAMCS_RFF BIT(14) /*!< rxframe fall flag */
#define I2C_SAMCS_RFR BIT(15) /*!< rxframe rise flag */
/* I2Cx_FMPCFG */
#define I2C_FMPCFG_FMPEN BIT(0) /*!< fast mode plus enable bit */
/* constants definitions */
/* define the I2C bit position and its register index offset */
#define I2C_REGIDX_BIT(regidx, bitpos) (((uint32_t)(regidx) << 6) | (uint32_t)(bitpos))
#define I2C_REG_VAL(i2cx, offset) (REG32((i2cx) + (((uint32_t)(offset) & 0x0000FFFFU) >> 6)))
#define I2C_BIT_POS(val) ((uint32_t)(val) & 0x0000001FU)
#define I2C_REGIDX_BIT2(regidx, bitpos, regidx2, bitpos2) (((uint32_t)(regidx2) << 22) | (uint32_t)((bitpos2) << 16)\
| (((uint32_t)(regidx) << 6) | (uint32_t)(bitpos)))
#define I2C_REG_VAL2(i2cx, offset) (REG32((i2cx) + ((uint32_t)(offset) >> 22)))
#define I2C_BIT_POS2(val) (((uint32_t)(val) & 0x001F0000U) >> 16)
/* register offset */
#define I2C_CTL1_REG_OFFSET ((uint32_t)0x00000004U) /*!< CTL1 register offset */
#define I2C_STAT0_REG_OFFSET ((uint32_t)0x00000014U) /*!< STAT0 register offset */
#define I2C_STAT1_REG_OFFSET ((uint32_t)0x00000018U) /*!< STAT1 register offset */
#define I2C_SAMCS_REG_OFFSET ((uint32_t)0x00000080U) /*!< SAMCS register offset */
/* I2C flags */
typedef enum {
/* flags in STAT0 register */
I2C_FLAG_SBSEND = I2C_REGIDX_BIT(I2C_STAT0_REG_OFFSET, 0U), /*!< start condition sent out in master mode */
I2C_FLAG_ADDSEND = I2C_REGIDX_BIT(I2C_STAT0_REG_OFFSET, 1U), /*!< address is sent in master mode or received and matches in slave mode */
I2C_FLAG_BTC = I2C_REGIDX_BIT(I2C_STAT0_REG_OFFSET, 2U), /*!< byte transmission finishes */
I2C_FLAG_ADD10SEND = I2C_REGIDX_BIT(I2C_STAT0_REG_OFFSET, 3U), /*!< header of 10-bit address is sent in master mode */
I2C_FLAG_STPDET = I2C_REGIDX_BIT(I2C_STAT0_REG_OFFSET, 4U), /*!< stop condition detected in slave mode */
I2C_FLAG_RBNE = I2C_REGIDX_BIT(I2C_STAT0_REG_OFFSET, 6U), /*!< I2C_DATA is not empty during receiving */
I2C_FLAG_TBE = I2C_REGIDX_BIT(I2C_STAT0_REG_OFFSET, 7U), /*!< I2C_DATA is empty during transmitting */
I2C_FLAG_BERR = I2C_REGIDX_BIT(I2C_STAT0_REG_OFFSET, 8U), /*!< a bus error occurs indication a unexpected start or stop condition on I2C bus */
I2C_FLAG_LOSTARB = I2C_REGIDX_BIT(I2C_STAT0_REG_OFFSET, 9U), /*!< arbitration lost in master mode */
I2C_FLAG_AERR = I2C_REGIDX_BIT(I2C_STAT0_REG_OFFSET, 10U), /*!< acknowledge error */
I2C_FLAG_OUERR = I2C_REGIDX_BIT(I2C_STAT0_REG_OFFSET, 11U), /*!< over-run or under-run situation occurs in slave mode */
I2C_FLAG_PECERR = I2C_REGIDX_BIT(I2C_STAT0_REG_OFFSET, 12U), /*!< PEC error when receiving data */
I2C_FLAG_SMBTO = I2C_REGIDX_BIT(I2C_STAT0_REG_OFFSET, 14U), /*!< timeout signal in SMBus mode */
I2C_FLAG_SMBALT = I2C_REGIDX_BIT(I2C_STAT0_REG_OFFSET, 15U), /*!< SMBus alert status */
/* flags in STAT1 register */
I2C_FLAG_MASTER = I2C_REGIDX_BIT(I2C_STAT1_REG_OFFSET, 0U), /*!< a flag indicating whether I2C block is in master or slave mode */
I2C_FLAG_I2CBSY = I2C_REGIDX_BIT(I2C_STAT1_REG_OFFSET, 1U), /*!< busy flag */
I2C_FLAG_TR = I2C_REGIDX_BIT(I2C_STAT1_REG_OFFSET, 2U), /*!< whether the I2C is a transmitter or a receiver */
I2C_FLAG_RXGC = I2C_REGIDX_BIT(I2C_STAT1_REG_OFFSET, 4U), /*!< general call address (00h) received */
I2C_FLAG_DEFSMB = I2C_REGIDX_BIT(I2C_STAT1_REG_OFFSET, 5U), /*!< default address of SMBus device */
I2C_FLAG_HSTSMB = I2C_REGIDX_BIT(I2C_STAT1_REG_OFFSET, 6U), /*!< SMBus host header detected in slave mode */
I2C_FLAG_DUMOD = I2C_REGIDX_BIT(I2C_STAT1_REG_OFFSET, 7U), /*!< dual flag in slave mode indicating which address is matched in dual-address mode */
/* flags in SAMCS register */
I2C_FLAG_TFF = I2C_REGIDX_BIT(I2C_SAMCS_REG_OFFSET, 12U), /*!< txframe fall flag */
I2C_FLAG_TFR = I2C_REGIDX_BIT(I2C_SAMCS_REG_OFFSET, 13U), /*!< txframe rise flag */
I2C_FLAG_RFF = I2C_REGIDX_BIT(I2C_SAMCS_REG_OFFSET, 14U), /*!< rxframe fall flag */
I2C_FLAG_RFR = I2C_REGIDX_BIT(I2C_SAMCS_REG_OFFSET, 15U) /*!< rxframe rise flag */
} i2c_flag_enum;
/* I2C interrupt flags */
typedef enum {
/* interrupt flags in CTL1 register */
I2C_INT_FLAG_SBSEND = I2C_REGIDX_BIT2(I2C_CTL1_REG_OFFSET, 9U, I2C_STAT0_REG_OFFSET, 0U), /*!< start condition sent out in master mode interrupt flag */
I2C_INT_FLAG_ADDSEND = I2C_REGIDX_BIT2(I2C_CTL1_REG_OFFSET, 9U, I2C_STAT0_REG_OFFSET, 1U), /*!< address is sent in master mode or received and matches in slave mode interrupt flag */
I2C_INT_FLAG_BTC = I2C_REGIDX_BIT2(I2C_CTL1_REG_OFFSET, 9U, I2C_STAT0_REG_OFFSET, 2U), /*!< byte transmission finishes interrupt flag */
I2C_INT_FLAG_ADD10SEND = I2C_REGIDX_BIT2(I2C_CTL1_REG_OFFSET, 9U, I2C_STAT0_REG_OFFSET, 3U), /*!< header of 10-bit address is sent in master mode interrupt flag */
I2C_INT_FLAG_STPDET = I2C_REGIDX_BIT2(I2C_CTL1_REG_OFFSET, 9U, I2C_STAT0_REG_OFFSET, 4U), /*!< stop condition detected in slave mode interrupt flag */
I2C_INT_FLAG_RBNE = I2C_REGIDX_BIT2(I2C_CTL1_REG_OFFSET, 9U, I2C_STAT0_REG_OFFSET, 6U), /*!< I2C_DATA is not Empty during receiving interrupt flag */
I2C_INT_FLAG_TBE = I2C_REGIDX_BIT2(I2C_CTL1_REG_OFFSET, 9U, I2C_STAT0_REG_OFFSET, 7U), /*!< I2C_DATA is empty during transmitting interrupt flag */
I2C_INT_FLAG_BERR = I2C_REGIDX_BIT2(I2C_CTL1_REG_OFFSET, 8U, I2C_STAT0_REG_OFFSET, 8U), /*!< a bus error occurs indication a unexpected start or stop condition on I2C bus interrupt flag */
I2C_INT_FLAG_LOSTARB = I2C_REGIDX_BIT2(I2C_CTL1_REG_OFFSET, 8U, I2C_STAT0_REG_OFFSET, 9U), /*!< arbitration lost in master mode interrupt flag */
I2C_INT_FLAG_AERR = I2C_REGIDX_BIT2(I2C_CTL1_REG_OFFSET, 8U, I2C_STAT0_REG_OFFSET, 10U), /*!< acknowledge error interrupt flag */
I2C_INT_FLAG_OUERR = I2C_REGIDX_BIT2(I2C_CTL1_REG_OFFSET, 8U, I2C_STAT0_REG_OFFSET, 11U), /*!< over-run or under-run situation occurs in slave mode interrupt flag */
I2C_INT_FLAG_PECERR = I2C_REGIDX_BIT2(I2C_CTL1_REG_OFFSET, 8U, I2C_STAT0_REG_OFFSET, 12U), /*!< PEC error when receiving data interrupt flag */
I2C_INT_FLAG_SMBTO = I2C_REGIDX_BIT2(I2C_CTL1_REG_OFFSET, 8U, I2C_STAT0_REG_OFFSET, 14U), /*!< timeout signal in SMBus mode interrupt flag */
I2C_INT_FLAG_SMBALT = I2C_REGIDX_BIT2(I2C_CTL1_REG_OFFSET, 8U, I2C_STAT0_REG_OFFSET, 15U), /*!< SMBus alert status interrupt flag */
/* interrupt flags in SAMCS register */
I2C_INT_FLAG_TFF = I2C_REGIDX_BIT2(I2C_SAMCS_REG_OFFSET, 4U, I2C_SAMCS_REG_OFFSET, 12U), /*!< txframe fall interrupt flag */
I2C_INT_FLAG_TFR = I2C_REGIDX_BIT2(I2C_SAMCS_REG_OFFSET, 5U, I2C_SAMCS_REG_OFFSET, 13U), /*!< txframe rise interrupt flag */
I2C_INT_FLAG_RFF = I2C_REGIDX_BIT2(I2C_SAMCS_REG_OFFSET, 6U, I2C_SAMCS_REG_OFFSET, 14U), /*!< rxframe fall interrupt flag */
I2C_INT_FLAG_RFR = I2C_REGIDX_BIT2(I2C_SAMCS_REG_OFFSET, 7U, I2C_SAMCS_REG_OFFSET, 15U) /*!< rxframe rise interrupt flag */
} i2c_interrupt_flag_enum;
/* I2C interrupt */
typedef enum {
/* interrupt in CTL1 register */
I2C_INT_ERR = I2C_REGIDX_BIT(I2C_CTL1_REG_OFFSET, 8U), /*!< error interrupt */
I2C_INT_EV = I2C_REGIDX_BIT(I2C_CTL1_REG_OFFSET, 9U), /*!< event interrupt */
I2C_INT_BUF = I2C_REGIDX_BIT(I2C_CTL1_REG_OFFSET, 10U), /*!< buffer interrupt */
/* interrupt in SAMCS register */
I2C_INT_TFF = I2C_REGIDX_BIT(I2C_SAMCS_REG_OFFSET, 4U), /*!< txframe fall interrupt */
I2C_INT_TFR = I2C_REGIDX_BIT(I2C_SAMCS_REG_OFFSET, 5U), /*!< txframe rise interrupt */
I2C_INT_RFF = I2C_REGIDX_BIT(I2C_SAMCS_REG_OFFSET, 6U), /*!< rxframe fall interrupt */
I2C_INT_RFR = I2C_REGIDX_BIT(I2C_SAMCS_REG_OFFSET, 7U) /*!< rxframe rise interrupt */
} i2c_interrupt_enum;
/* SMBus/I2C mode switch and SMBus type selection */
#define I2C_I2CMODE_ENABLE ((uint32_t)0x00000000U) /*!< I2C mode */
#define I2C_SMBUSMODE_ENABLE I2C_CTL0_SMBEN /*!< SMBus mode */
/* SMBus/I2C mode switch and SMBus type selection */
#define I2C_SMBUS_DEVICE ((uint32_t)0x00000000U) /*!< SMBus mode device type */
#define I2C_SMBUS_HOST I2C_CTL0_SMBSEL /*!< SMBus mode host type */
/* I2C transfer direction */
#define I2C_RECEIVER ((uint32_t)0x00000001U) /*!< receiver */
#define I2C_TRANSMITTER ((uint32_t)0xFFFFFFFEU) /*!< transmitter */
/* whether or not to send an ACK */
#define I2C_ACK_DISABLE ((uint32_t)0x00000000U) /*!< ACK will be not sent */
#define I2C_ACK_ENABLE I2C_CTL0_ACKEN /*!< ACK will be sent */
/* I2C POAP position*/
#define I2C_ACKPOS_CURRENT ((uint32_t)0x00000000U) /*!< ACKEN bit decides whether or not to send ACK or not for the current byte */
#define I2C_ACKPOS_NEXT I2C_CTL0_POAP /*!< ACKEN bit decides whether or not to send ACK for the next byte */
/* whether or not to stretch SCL low */
#define I2C_SCLSTRETCH_ENABLE ((uint32_t)0x00000000U) /*!< enable SCL stretching */
#define I2C_SCLSTRETCH_DISABLE I2C_CTL0_SS /*!< disable SCL stretching */
/* whether or not to response to a general call */
#define I2C_GCEN_DISABLE ((uint32_t)0x00000000U) /*!< slave will not response to a general call */
#define I2C_GCEN_ENABLE I2C_CTL0_GCEN /*!< slave will response to a general call */
/* software reset I2C */
#define I2C_SRESET_RESET ((uint32_t)0x00000000U) /*!< I2C is not under reset */
#define I2C_SRESET_SET I2C_CTL0_SRESET /*!< I2C is under reset */
/* I2C DMA mode configure */
/* DMA mode switch */
#define I2C_DMA_OFF ((uint32_t)0x00000000U) /*!< disable DMA mode */
#define I2C_DMA_ON I2C_CTL1_DMAON /*!< enable DMA mode */
/* flag indicating DMA last transfer */
#define I2C_DMALST_OFF ((uint32_t)0x00000000U) /*!< next DMA EOT is not the last transfer */
#define I2C_DMALST_ON I2C_CTL1_DMALST /*!< next DMA EOT is the last transfer */
/* I2C PEC configure */
/* PEC enable */
#define I2C_PEC_DISABLE ((uint32_t)0x00000000U) /*!< PEC calculation off */
#define I2C_PEC_ENABLE I2C_CTL0_PECEN /*!< PEC calculation on */
/* PEC transfer */
#define I2C_PECTRANS_DISABLE ((uint32_t)0x00000000U) /*!< not transfer PEC value */
#define I2C_PECTRANS_ENABLE I2C_CTL0_PECTRANS /*!< transfer PEC value */
/* I2C SMBus configure */
/* issue or not alert through SMBA pin */
#define I2C_SALTSEND_DISABLE ((uint32_t)0x00000000U) /*!< not issue alert through SMBA */
#define I2C_SALTSEND_ENABLE I2C_CTL0_SALT /*!< issue alert through SMBA pin */
/* ARP protocol in SMBus switch */
#define I2C_ARP_DISABLE ((uint32_t)0x00000000U) /*!< disable ARP */
#define I2C_ARP_ENABLE I2C_CTL0_ARPEN /*!< enable ARP */
/* transmit I2C data */
#define DATA_TRANS(regval) (BITS(0,7) & ((uint32_t)(regval) << 0))
/* receive I2C data */
#define DATA_RECV(regval) GET_BITS((uint32_t)(regval), 0, 7)
/* I2C duty cycle in fast mode or fast mode plus */
#define I2C_DTCY_2 ((uint32_t)0x00000000U) /*!< T_low/T_high = 2 in fast mode or fast mode plus */
#define I2C_DTCY_16_9 I2C_CKCFG_DTCY /*!< T_low/T_high = 16/9 in fast mode or fast mode plus */
/* address mode for the I2C slave */
#define I2C_ADDFORMAT_7BITS ((uint32_t)0x00000000U) /*!< address format is 7 bits */
#define I2C_ADDFORMAT_10BITS I2C_SADDR0_ADDFORMAT /*!< address format is 10 bits */
/* function declarations */
/* initialization functions */
/* reset I2C */
void i2c_deinit(uint32_t i2c_periph);
/* configure I2C clock */
void i2c_clock_config(uint32_t i2c_periph, uint32_t clkspeed, uint32_t dutycyc);
/* configure I2C address */
void i2c_mode_addr_config(uint32_t i2c_periph, uint32_t mode, uint32_t addformat, uint32_t addr);
/* application function declarations */
/* select SMBus type */
void i2c_smbus_type_config(uint32_t i2c_periph, uint32_t type);
/* whether or not to send an ACK */
void i2c_ack_config(uint32_t i2c_periph, uint32_t ack);
/* configure I2C POAP position */
void i2c_ackpos_config(uint32_t i2c_periph, uint32_t pos);
/* master sends slave address */
void i2c_master_addressing(uint32_t i2c_periph, uint32_t addr, uint32_t trandirection);
/* enable dual-address mode */
void i2c_dualaddr_enable(uint32_t i2c_periph, uint32_t addr);
/* disable dual-address mode */
void i2c_dualaddr_disable(uint32_t i2c_periph);
/* enable I2C */
void i2c_enable(uint32_t i2c_periph);
/* disable I2C */
void i2c_disable(uint32_t i2c_periph);
/* generate a START condition on I2C bus */
void i2c_start_on_bus(uint32_t i2c_periph);
/* generate a STOP condition on I2C bus */
void i2c_stop_on_bus(uint32_t i2c_periph);
/* I2C transmit data function */
void i2c_data_transmit(uint32_t i2c_periph, uint8_t data);
/* I2C receive data function */
uint8_t i2c_data_receive(uint32_t i2c_periph);
/* configure I2C DMA mode */
void i2c_dma_config(uint32_t i2c_periph, uint32_t dmastate);
/* configure whether next DMA EOT is DMA last transfer or not */
void i2c_dma_last_transfer_config(uint32_t i2c_periph, uint32_t dmalast);
/* whether to stretch SCL low when data is not ready in slave mode */
void i2c_stretch_scl_low_config(uint32_t i2c_periph, uint32_t stretchpara);
/* whether or not to response to a general call */
void i2c_slave_response_to_gcall_config(uint32_t i2c_periph, uint32_t gcallpara);
/* configure software reset of I2C */
void i2c_software_reset_config(uint32_t i2c_periph, uint32_t sreset);
/* configure I2C PEC calculation */
void i2c_pec_config(uint32_t i2c_periph, uint32_t pecstate);
/* configure whether to transfer PEC value */
void i2c_pec_transfer_config(uint32_t i2c_periph, uint32_t pecpara);
/* get packet error checking value */
uint8_t i2c_pec_value_get(uint32_t i2c_periph);
/* configure I2C alert through SMBA pin */
void i2c_smbus_alert_config(uint32_t i2c_periph, uint32_t smbuspara);
/* configure I2C ARP protocol in SMBus */
void i2c_smbus_arp_config(uint32_t i2c_periph, uint32_t arpstate);
/* enable SAM_V interface */
void i2c_sam_enable(uint32_t i2c_periph);
/* disable SAM_V interface */
void i2c_sam_disable(uint32_t i2c_periph);
/* enable SAM_V interface timeout detect */
void i2c_sam_timeout_enable(uint32_t i2c_periph);
/* disable SAM_V interface timeout detect */
void i2c_sam_timeout_disable(uint32_t i2c_periph);
/* interrupt & flag functions */
/* get I2C flag status */
FlagStatus i2c_flag_get(uint32_t i2c_periph, i2c_flag_enum flag);
/* clear I2C flag status */
void i2c_flag_clear(uint32_t i2c_periph, i2c_flag_enum flag);
/* enable I2C interrupt */
void i2c_interrupt_enable(uint32_t i2c_periph, i2c_interrupt_enum interrupt);
/* disable I2C interrupt */
void i2c_interrupt_disable(uint32_t i2c_periph, i2c_interrupt_enum interrupt);
/* get I2C interrupt flag status */
FlagStatus i2c_interrupt_flag_get(uint32_t i2c_periph, i2c_interrupt_flag_enum int_flag);
/* clear I2C interrupt flag status */
void i2c_interrupt_flag_clear(uint32_t i2c_periph, i2c_interrupt_flag_enum int_flag);
#endif /* GD32E23X_I2C_H */

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/*!
\file gd32e23x_libopt.h
\brief library optional for gd32e23x
\version 2024-02-22, V2.1.0, firmware for GD32E23x
*/
/*
Copyright (c) 2024, GigaDevice Semiconductor Inc.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.
*/
#ifndef GD32E23X_LIBOPT_H
#define GD32E23X_LIBOPT_H
#include "gd32e23x_adc.h"
#include "gd32e23x_crc.h"
#include "gd32e23x_dbg.h"
#include "gd32e23x_dma.h"
#include "gd32e23x_exti.h"
#include "gd32e23x_fmc.h"
#include "gd32e23x_gpio.h"
#include "gd32e23x_syscfg.h"
#include "gd32e23x_i2c.h"
#include "gd32e23x_fwdgt.h"
#include "gd32e23x_pmu.h"
#include "gd32e23x_rcu.h"
#include "gd32e23x_rtc.h"
#include "gd32e23x_spi.h"
#include "gd32e23x_timer.h"
#include "gd32e23x_usart.h"
#include "gd32e23x_wwdgt.h"
#include "gd32e23x_misc.h"
#include "gd32e23x_cmp.h"
#endif /* GD32E23X_LIBOPT_H */

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/*!
\file gd32e23x_misc.h
\brief definitions for the MISC
\version 2024-02-22, V2.1.0, firmware for GD32E23x
*/
/*
Copyright (c) 2024, GigaDevice Semiconductor Inc.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.
*/
#ifndef GD32E23X_MISC_H
#define GD32E23X_MISC_H
#include "gd32e23x.h"
/* constants definitions */
/* set the RAM and FLASH base address */
#define NVIC_VECTTAB_RAM ((uint32_t)0x20000000U) /*!< RAM base address */
#define NVIC_VECTTAB_FLASH ((uint32_t)0x08000000U) /*!< Flash base address */
/* set the NVIC vector table offset mask */
#define NVIC_VECTTAB_OFFSET_MASK ((uint32_t)0x1FFFFF80U) /*!< NVIC vector table offset mask */
/* the register key mask, if you want to do the write operation, you should write 0x5FA to VECTKEY bits */
#define NVIC_AIRCR_VECTKEY_MASK ((uint32_t)0x05FA0000U) /*!< NVIC VECTKEY mask */
/* choose the method to enter or exit the lowpower mode */
#define SCB_SCR_SLEEPONEXIT ((uint8_t)0x02U) /*!< choose the the system whether enter low power mode by exiting from ISR */
#define SCB_SCR_SLEEPDEEP ((uint8_t)0x04U) /*!< choose the the system enter the DEEPSLEEP mode or SLEEP mode */
#define SCB_SCR_SEVONPEND ((uint8_t)0x10U) /*!< choose the interrupt source that can wake up the lowpower mode */
#define SCB_LPM_SLEEP_EXIT_ISR SCB_SCR_SLEEPONEXIT /*!< low power mode by exiting from ISR */
#define SCB_LPM_DEEPSLEEP SCB_SCR_SLEEPDEEP /*!< DEEPSLEEP mode or SLEEP mode */
#define SCB_LPM_WAKE_BY_ALL_INT SCB_SCR_SEVONPEND /*!< wakeup by all interrupt */
/* choose the systick clock source */
#define SYSTICK_CLKSOURCE_HCLK_DIV8 ((uint32_t)0xFFFFFFFBU) /*!< systick clock source is from HCLK/8 */
#define SYSTICK_CLKSOURCE_HCLK ((uint32_t)0x00000004U) /*!< systick clock source is from HCLK */
/* function declarations */
/* enable NVIC request */
void nvic_irq_enable(uint8_t nvic_irq, uint8_t nvic_irq_priority);
/* disable NVIC request */
void nvic_irq_disable(uint8_t nvic_irq);
/* initiates a system reset request to reset the MCU */
void nvic_system_reset(void);
/* set the NVIC vector table base address */
void nvic_vector_table_set(uint32_t nvic_vict_tab, uint32_t offset);
/* set the state of the low power mode */
void system_lowpower_set(uint8_t lowpower_mode);
/* reset the state of the low power mode */
void system_lowpower_reset(uint8_t lowpower_mode);
/* set the systick clock source */
void systick_clksource_set(uint32_t systick_clksource);
#endif /* GD32E23X_MISC_H */

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/*!
\file gd32e23x_pmu.h
\brief definitions for the PMU
\version 2024-02-22, V2.1.0, firmware for GD32E23x
*/
/*
Copyright (c) 2024, GigaDevice Semiconductor Inc.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.
*/
#ifndef GD32E23X_PMU_H
#define GD32E23X_PMU_H
#include "gd32e23x.h"
/* PMU definitions */
#define PMU PMU_BASE /*!< PMU base address */
/* registers definitions */
#define PMU_CTL REG32((PMU) + 0x00U) /*!< PMU control register */
#define PMU_CS REG32((PMU) + 0x04U) /*!< PMU control and status register */
/* bits definitions */
/* PMU_CTL */
#define PMU_CTL_LDOLP BIT(0) /*!< LDO low power mode */
#define PMU_CTL_STBMOD BIT(1) /*!< standby mode */
#define PMU_CTL_WURST BIT(2) /*!< wakeup flag reset */
#define PMU_CTL_STBRST BIT(3) /*!< standby flag reset */
#define PMU_CTL_LVDEN BIT(4) /*!< low voltage detector enable */
#define PMU_CTL_LVDT BITS(5,7) /*!< low voltage detector threshold */
#define PMU_CTL_BKPWEN BIT(8) /*!< backup domain write enable */
#define PMU_CTL_LDOVS_0 BIT(14) /*!< LDO output voltage select */
#define PMU_CTL_LDOVS_1 BIT(15) /*!< LDO output voltage select */
#define PMU_CTL_LDOVS BITS(14,15) /*!< LDO output voltage select */
/* PMU_CS */
#define PMU_CS_WUF BIT(0) /*!< wakeup flag */
#define PMU_CS_STBF BIT(1) /*!< standby flag */
#define PMU_CS_LVDF BIT(2) /*!< low voltage detector status flag */
#define PMU_CS_WUPEN0 BIT(8) /*!< wakeup pin enable */
#define PMU_CS_WUPEN1 BIT(9) /*!< wakeup pin enable */
#define PMU_CS_WUPEN5 BIT(13) /*!< wakeup pin enable */
#define PMU_CS_WUPEN6 BIT(14) /*!< wakeup pin enable */
/* constants definitions */
/* PMU ldo definitions */
#define PMU_LDO_NORMAL ((uint32_t)0x00000000U) /*!< LDO operates normally when PMU enter deepsleep mode */
#define PMU_LDO_LOWPOWER PMU_CTL_LDOLP /*!< LDO work at low power status when PMU enter deepsleep mode */
/* PMU low voltage detector threshold definitions */
#define CTL_LVDT(regval) (BITS(5,7)&((uint32_t)(regval)<<5))
#define PMU_LVDT_0 CTL_LVDT(0) /*!< voltage threshold is 2.1V */
#define PMU_LVDT_1 CTL_LVDT(1) /*!< voltage threshold is 2.3V */
#define PMU_LVDT_2 CTL_LVDT(2) /*!< voltage threshold is 2.4V */
#define PMU_LVDT_3 CTL_LVDT(3) /*!< voltage threshold is 2.6V */
#define PMU_LVDT_4 CTL_LVDT(4) /*!< voltage threshold is 2.7V */
#define PMU_LVDT_5 CTL_LVDT(5) /*!< voltage threshold is 2.9V */
#define PMU_LVDT_6 CTL_LVDT(6) /*!< voltage threshold is 3.0V */
#define PMU_LVDT_7 CTL_LVDT(7) /*!< voltage threshold is 3.1V */
/* PMU LDO output voltage select definitions */
#define CTL_LDOVS(regval) (BITS(14,15)&((uint32_t)(regval)<<14))
#define PMU_LDOVS_HIGH CTL_LDOVS(1) /*!< LDO output voltage high mode */
#define PMU_LDOVS_LOW CTL_LDOVS(2) /*!< LDO output voltage low mode */
/* PMU WKUP pin definitions */
#define PMU_WAKEUP_PIN0 PMU_CS_WUPEN0 /*!< WKUP Pin 0 (PA0) enable */
#define PMU_WAKEUP_PIN1 PMU_CS_WUPEN1 /*!< WKUP Pin 1 (PC13) enable */
#define PMU_WAKEUP_PIN5 PMU_CS_WUPEN5 /*!< WKUP Pin 5 (PB5) enable */
#define PMU_WAKEUP_PIN6 PMU_CS_WUPEN6 /*!< WKUP Pin 6 (PB15) enable */
/* PMU flag definitions */
#define PMU_FLAG_WAKEUP PMU_CS_WUF /*!< wakeup flag status */
#define PMU_FLAG_STANDBY PMU_CS_STBF /*!< standby flag status */
#define PMU_FLAG_LVD PMU_CS_LVDF /*!< LVD flag status */
/* PMU flag reset definitions */
#define PMU_FLAG_RESET_WAKEUP PMU_CTL_WURST /*!< wakeup flag reset */
#define PMU_FLAG_RESET_STANDBY PMU_CTL_STBRST /*!< standby flag reset */
/* PMU command constants definitions */
#define WFI_CMD ((uint8_t)0x00U) /*!< use WFI command */
#define WFE_CMD ((uint8_t)0x01U) /*!< use WFE command */
/* function declarations */
/* reset PMU registers */
void pmu_deinit(void);
/* select low voltage detector threshold */
void pmu_lvd_select(uint32_t lvdt_n);
/* select LDO output voltage */
void pmu_ldo_output_select(uint32_t ldo_output);
/* disable PMU lvd */
void pmu_lvd_disable(void);
/* set PMU mode */
/* PMU work in sleep mode */
void pmu_to_sleepmode(uint8_t sleepmodecmd);
/* PMU work in deepsleep mode */
void pmu_to_deepsleepmode(uint32_t ldo, uint8_t deepsleepmodecmd);
/* PMU work in standby mode */
void pmu_to_standbymode(void);
/* enable PMU wakeup pin */
void pmu_wakeup_pin_enable(uint32_t wakeup_pin);
/* disable PMU wakeup pin */
void pmu_wakeup_pin_disable(uint32_t wakeup_pin);
/* backup related functions */
/* enable backup domain write */
void pmu_backup_write_enable(void);
/* disable backup domain write */
void pmu_backup_write_disable(void);
/* flag functions */
/* get flag state */
FlagStatus pmu_flag_get(uint32_t flag);
/* clear flag bit */
void pmu_flag_clear(uint32_t flag);
#endif /* GD32E23X_PMU_H */

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/*!
\file gd32e23x_rcu.h
\brief definitions for the RCU
\version 2024-02-22, V2.1.0, firmware for GD32E23x
*/
/*
Copyright (c) 2024, GigaDevice Semiconductor Inc.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.
*/
#ifndef GD32E23X_RCU_H
#define GD32E23X_RCU_H
#include "gd32e23x.h"
/* RCU definitions */
#define RCU RCU_BASE
/* registers definitions */
#define RCU_CTL0 REG32(RCU + 0x00000000U) /*!< control register 0 */
#define RCU_CFG0 REG32(RCU + 0x00000004U) /*!< configuration register 0 */
#define RCU_INT REG32(RCU + 0x00000008U) /*!< interrupt register */
#define RCU_APB2RST REG32(RCU + 0x0000000CU) /*!< APB2 reset register */
#define RCU_APB1RST REG32(RCU + 0x00000010U) /*!< APB1 reset register */
#define RCU_AHBEN REG32(RCU + 0x00000014U) /*!< AHB enable register */
#define RCU_APB2EN REG32(RCU + 0x00000018U) /*!< APB2 enable register */
#define RCU_APB1EN REG32(RCU + 0x0000001CU) /*!< APB1 enable register */
#define RCU_BDCTL REG32(RCU + 0x00000020U) /*!< backup domain control register */
#define RCU_RSTSCK REG32(RCU + 0x00000024U) /*!< reset source /clock register */
#define RCU_AHBRST REG32(RCU + 0x00000028U) /*!< AHB reset register */
#define RCU_CFG1 REG32(RCU + 0x0000002CU) /*!< configuration register 1 */
#define RCU_CFG2 REG32(RCU + 0x00000030U) /*!< configuration register 2 */
#define RCU_CTL1 REG32(RCU + 0x00000034U) /*!< control register 1 */
#define RCU_VKEY REG32(RCU + 0x00000100U) /*!< voltage key register */
#define RCU_DSV REG32(RCU + 0x00000134U) /*!< deep-sleep mode voltage register */
/* bits definitions */
/* RCU_CTL0 */
#define RCU_CTL0_IRC8MEN BIT(0) /*!< internal high speed oscillator enable */
#define RCU_CTL0_IRC8MSTB BIT(1) /*!< IRC8M high speed internal oscillator stabilization flag */
#define RCU_CTL0_IRC8MADJ BITS(3,7) /*!< high speed internal oscillator clock trim adjust value */
#define RCU_CTL0_IRC8MCALIB BITS(8,15) /*!< high speed internal oscillator calibration value register */
#define RCU_CTL0_HXTALEN BIT(16) /*!< external high speed oscillator enable */
#define RCU_CTL0_HXTALSTB BIT(17) /*!< external crystal oscillator clock stabilization flag */
#define RCU_CTL0_HXTALBPS BIT(18) /*!< external crystal oscillator clock bypass mode enable */
#define RCU_CTL0_CKMEN BIT(19) /*!< HXTAL clock monitor enable */
#define RCU_CTL0_PLLEN BIT(24) /*!< PLL enable */
#define RCU_CTL0_PLLSTB BIT(25) /*!< PLL clock stabilization flag */
/* RCU_CFG0 */
#define RCU_CFG0_SCS BITS(0,1) /*!< system clock switch */
#define RCU_CFG0_SCSS BITS(2,3) /*!< system clock switch status */
#define RCU_CFG0_AHBPSC BITS(4,7) /*!< AHB prescaler selection */
#define RCU_CFG0_APB1PSC BITS(8,10) /*!< APB1 prescaler selection */
#define RCU_CFG0_APB2PSC BITS(11,13) /*!< APB2 prescaler selection */
#define RCU_CFG0_ADCPSC BITS(14,15) /*!< ADC clock prescaler selection */
#define RCU_CFG0_PLLSEL BIT(16) /*!< PLL clock source selection */
#define RCU_CFG0_PLLPREDV BIT(17) /*!< divider for PLL source clock selection */
#define RCU_CFG0_PLLMF (BIT(27) | BITS(18,21)) /*!< PLL multiply factor */
#define RCU_CFG0_CKOUTSEL BITS(24,26) /*!< CK_OUT clock source selection */
#define RCU_CFG0_PLLMF4 BIT(27) /*!< bit 4 of PLLMF */
#define RCU_CFG0_CKOUTDIV BITS(28,30) /*!< CK_OUT divider which the CK_OUT frequency can be reduced */
#define RCU_CFG0_PLLDV BIT(31) /*!< CK_PLL divide by 1 or 2 */
/* RCU_INT */
#define RCU_INT_IRC40KSTBIF BIT(0) /*!< IRC40K stabilization interrupt flag */
#define RCU_INT_LXTALSTBIF BIT(1) /*!< LXTAL stabilization interrupt flag */
#define RCU_INT_IRC8MSTBIF BIT(2) /*!< IRC8M stabilization interrupt flag */
#define RCU_INT_HXTALSTBIF BIT(3) /*!< HXTAL stabilization interrupt flag */
#define RCU_INT_PLLSTBIF BIT(4) /*!< PLL stabilization interrupt flag */
#define RCU_INT_IRC28MSTBIF BIT(5) /*!< IRC28M stabilization interrupt flag */
#define RCU_INT_CKMIF BIT(7) /*!< HXTAL clock stuck interrupt flag */
#define RCU_INT_IRC40KSTBIE BIT(8) /*!< IRC40K stabilization interrupt enable */
#define RCU_INT_LXTALSTBIE BIT(9) /*!< LXTAL stabilization interrupt enable */
#define RCU_INT_IRC8MSTBIE BIT(10) /*!< IRC8M stabilization interrupt enable */
#define RCU_INT_HXTALSTBIE BIT(11) /*!< HXTAL stabilization interrupt enable */
#define RCU_INT_PLLSTBIE BIT(12) /*!< PLL stabilization interrupt enable */
#define RCU_INT_IRC28MSTBIE BIT(13) /*!< IRC28M stabilization interrupt enable */
#define RCU_INT_IRC40KSTBIC BIT(16) /*!< IRC40K stabilization interrupt clear */
#define RCU_INT_LXTALSTBIC BIT(17) /*!< LXTAL stabilization interrupt clear */
#define RCU_INT_IRC8MSTBIC BIT(18) /*!< IRC8M stabilization interrupt clear */
#define RCU_INT_HXTALSTBIC BIT(19) /*!< HXTAL stabilization interrupt clear */
#define RCU_INT_PLLSTBIC BIT(20) /*!< PLL stabilization interrupt clear */
#define RCU_INT_IRC28MSTBIC BIT(21) /*!< IRC28M stabilization interrupt clear */
#define RCU_INT_CKMIC BIT(23) /*!< HXTAL clock stuck interrupt clear */
/* RCU_APB2RST */
#define RCU_APB2RST_CFGCMPRST BIT(0) /*!< system configuration and comparator reset */
#define RCU_APB2RST_ADCRST BIT(9) /*!< ADC reset */
#define RCU_APB2RST_TIMER0RST BIT(11) /*!< TIMER0 reset */
#define RCU_APB2RST_SPI0RST BIT(12) /*!< SPI0 reset */
#define RCU_APB2RST_USART0RST BIT(14) /*!< USART0 reset */
#define RCU_APB2RST_TIMER14RST BIT(16) /*!< TIMER14 reset */
#define RCU_APB2RST_TIMER15RST BIT(17) /*!< TIMER15 reset */
#define RCU_APB2RST_TIMER16RST BIT(18) /*!< TIMER16 reset */
/* RCU_APB1RST */
#define RCU_APB1RST_TIMER2RST BIT(1) /*!< TIMER2 timer reset */
#define RCU_APB1RST_TIMER5RST BIT(4) /*!< TIMER5 timer reset */
#define RCU_APB1RST_TIMER13RST BIT(8) /*!< TIMER13 timer reset */
#define RCU_APB1RST_WWDGTRST BIT(11) /*!< window watchdog timer reset */
#define RCU_APB1RST_SPI1RST BIT(14) /*!< SPI1 reset */
#define RCU_APB1RST_USART1RST BIT(17) /*!< USART1 reset */
#define RCU_APB1RST_I2C0RST BIT(21) /*!< I2C0 reset */
#define RCU_APB1RST_I2C1RST BIT(22) /*!< I2C1 reset */
#define RCU_APB1RST_PMURST BIT(28) /*!< power control reset */
/* RCU_AHBEN */
#define RCU_AHBEN_DMAEN BIT(0) /*!< DMA clock enable */
#define RCU_AHBEN_SRAMSPEN BIT(2) /*!< SRAM interface clock enable */
#define RCU_AHBEN_FMCSPEN BIT(4) /*!< FMC clock enable */
#define RCU_AHBEN_CRCEN BIT(6) /*!< CRC clock enable */
#define RCU_AHBEN_PAEN BIT(17) /*!< GPIO port A clock enable */
#define RCU_AHBEN_PBEN BIT(18) /*!< GPIO port B clock enable */
#define RCU_AHBEN_PCEN BIT(19) /*!< GPIO port C clock enable */
#define RCU_AHBEN_PFEN BIT(22) /*!< GPIO port F clock enable */
/* RCU_APB2EN */
#define RCU_APB2EN_CFGCMPEN BIT(0) /*!< system configuration and comparator clock enable */
#define RCU_APB2EN_ADCEN BIT(9) /*!< ADC interface clock enable */
#define RCU_APB2EN_TIMER0EN BIT(11) /*!< TIMER0 timer clock enable */
#define RCU_APB2EN_SPI0EN BIT(12) /*!< SPI0 clock enable */
#define RCU_APB2EN_USART0EN BIT(14) /*!< USART0 clock enable */
#define RCU_APB2EN_TIMER14EN BIT(16) /*!< TIMER14 timer clock enable */
#define RCU_APB2EN_TIMER15EN BIT(17) /*!< TIMER15 timer clock enable */
#define RCU_APB2EN_TIMER16EN BIT(18) /*!< TIMER16 timer clock enable */
#define RCU_APB2EN_DBGMCUEN BIT(22) /*!< DBGMCU clock enable */
/* RCU_APB1EN */
#define RCU_APB1EN_TIMER2EN BIT(1) /*!< TIMER2 timer clock enable */
#define RCU_APB1EN_TIMER5EN BIT(4) /*!< TIMER5 timer clock enable */
#define RCU_APB1EN_TIMER13EN BIT(8) /*!< TIMER13 timer clock enable */
#define RCU_APB1EN_WWDGTEN BIT(11) /*!< window watchdog timer clock enable */
#define RCU_APB1EN_SPI1EN BIT(14) /*!< SPI1 clock enable */
#define RCU_APB1EN_USART1EN BIT(17) /*!< USART1 clock enable */
#define RCU_APB1EN_I2C0EN BIT(21) /*!< I2C0 clock enable */
#define RCU_APB1EN_I2C1EN BIT(22) /*!< I2C1 clock enable */
#define RCU_APB1EN_PMUEN BIT(28) /*!< power interface clock enable */
/* RCU_BDCTL */
#define RCU_BDCTL_LXTALEN BIT(0) /*!< LXTAL enable */
#define RCU_BDCTL_LXTALSTB BIT(1) /*!< external low-speed oscillator stabilization */
#define RCU_BDCTL_LXTALBPS BIT(2) /*!< LXTAL bypass mode enable */
#define RCU_BDCTL_LXTALDRI BITS(3,4) /*!< LXTAL drive capability */
#define RCU_BDCTL_RTCSRC BITS(8,9) /*!< RTC clock entry selection */
#define RCU_BDCTL_RTCEN BIT(15) /*!< RTC clock enable */
#define RCU_BDCTL_BKPRST BIT(16) /*!< backup domain reset */
/* RCU_RSTSCK */
#define RCU_RSTSCK_IRC40KEN BIT(0) /*!< IRC40K enable */
#define RCU_RSTSCK_IRC40KSTB BIT(1) /*!< IRC40K stabilization */
#define RCU_RSTSCK_V12RSTF BIT(23) /*!< V12 domain power reset flag */
#define RCU_RSTSCK_RSTFC BIT(24) /*!< reset flag clear */
#define RCU_RSTSCK_OBLRSTF BIT(25) /*!< option byte loader reset flag */
#define RCU_RSTSCK_EPRSTF BIT(26) /*!< external pin reset flag */
#define RCU_RSTSCK_PORRSTF BIT(27) /*!< power reset flag */
#define RCU_RSTSCK_SWRSTF BIT(28) /*!< software reset flag */
#define RCU_RSTSCK_FWDGTRSTF BIT(29) /*!< free watchdog timer reset flag */
#define RCU_RSTSCK_WWDGTRSTF BIT(30) /*!< window watchdog timer reset flag */
#define RCU_RSTSCK_LPRSTF BIT(31) /*!< low-power reset flag */
/* RCU_AHBRST */
#define RCU_AHBRST_PARST BIT(17) /*!< GPIO port A reset */
#define RCU_AHBRST_PBRST BIT(18) /*!< GPIO port B reset */
#define RCU_AHBRST_PCRST BIT(19) /*!< GPIO port C reset */
#define RCU_AHBRST_PFRST BIT(22) /*!< GPIO port F reset */
/* RCU_CFG1 */
#define RCU_CFG1_PREDV BITS(0,3) /*!< CK_HXTAL divider previous PLL */
/* RCU_CFG2 */
#define RCU_CFG2_USART0SEL BITS(0,1) /*!< CK_USART0 clock source selection */
#define RCU_CFG2_ADCSEL BIT(8) /*!< CK_ADC clock source selection */
#define RCU_CFG2_IRC28MDIV BIT(16) /*!< CK_IRC28M divider 2 or not */
#define RCU_CFG2_ADCPSC2 BIT(31) /*!< bit 2 of ADCPSC */
/* RCU_CTL1 */
#define RCU_CTL1_IRC28MEN BIT(0) /*!< IRC28M internal 28M RC oscillator enable */
#define RCU_CTL1_IRC28MSTB BIT(1) /*!< IRC28M internal 28M RC oscillator stabilization flag */
#define RCU_CTL1_IRC28MADJ BITS(3,7) /*!< internal 28M RC oscillator clock trim adjust value */
#define RCU_CTL1_IRC28MCALIB BITS(8,15) /*!< internal 28M RC oscillator calibration value register */
/* RCU_VKEY */
#define RCU_VKEY_KEY BITS(0,31) /*!< key of RCU_DSV register */
/* RCU_DSV */
#define RCU_DSV_DSLPVS BITS(0,1) /*!< deep-sleep mode voltage select */
/* constants definitions */
/* define the peripheral clock enable bit position and its register index offset */
#define RCU_REGIDX_BIT(regidx, bitpos) (((uint32_t)(regidx)<<6) | (uint32_t)(bitpos))
#define RCU_REG_VAL(periph) (REG32(RCU + ((uint32_t)(periph)>>6)))
#define RCU_BIT_POS(val) ((uint32_t)(val) & 0x1FU)
/* define the voltage key unlock value */
#define RCU_VKEY_UNLOCK ((uint32_t)0x1A2B3C4D)
/* register index */
typedef enum
{
/* peripherals enable */
IDX_AHBEN = 0x14U,
IDX_APB2EN = 0x18U,
IDX_APB1EN = 0x1CU,
/* peripherals reset */
IDX_AHBRST = 0x28U,
IDX_APB2RST = 0x0CU,
IDX_APB1RST = 0x10U,
/* clock stabilization */
IDX_CTL0 = 0x00U,
IDX_BDCTL = 0x20U,
IDX_CTL1 = 0x34U,
/* peripheral reset */
IDX_RSTSCK = 0x24U,
/* clock stabilization and stuck interrupt */
IDX_INT = 0x08U,
/* configuration register */
IDX_CFG0 = 0x04U,
IDX_CFG2 = 0x30U
}reg_idx;
/* peripheral clock enable */
typedef enum
{
/* AHB peripherals */
RCU_DMA = RCU_REGIDX_BIT(IDX_AHBEN, 0U), /*!< DMA clock */
RCU_CRC = RCU_REGIDX_BIT(IDX_AHBEN, 6U), /*!< CRC clock */
RCU_GPIOA = RCU_REGIDX_BIT(IDX_AHBEN, 17U), /*!< GPIOA clock */
RCU_GPIOB = RCU_REGIDX_BIT(IDX_AHBEN, 18U), /*!< GPIOB clock */
RCU_GPIOC = RCU_REGIDX_BIT(IDX_AHBEN, 19U), /*!< GPIOC clock */
RCU_GPIOF = RCU_REGIDX_BIT(IDX_AHBEN, 22U), /*!< GPIOF clock */
/* APB2 peripherals */
RCU_CFGCMP = RCU_REGIDX_BIT(IDX_APB2EN, 0U), /*!< CFGCMP clock */
RCU_ADC = RCU_REGIDX_BIT(IDX_APB2EN, 9U), /*!< ADC clock */
RCU_TIMER0 = RCU_REGIDX_BIT(IDX_APB2EN, 11U), /*!< TIMER0 clock */
RCU_SPI0 = RCU_REGIDX_BIT(IDX_APB2EN, 12U), /*!< SPI0 clock */
RCU_USART0 = RCU_REGIDX_BIT(IDX_APB2EN, 14U), /*!< USART0 clock */
RCU_TIMER14 = RCU_REGIDX_BIT(IDX_APB2EN, 16U), /*!< TIMER14 clock */
RCU_TIMER15 = RCU_REGIDX_BIT(IDX_APB2EN, 17U), /*!< TIMER15 clock */
RCU_TIMER16 = RCU_REGIDX_BIT(IDX_APB2EN, 18U), /*!< TIMER16 clock */
RCU_DBGMCU = RCU_REGIDX_BIT(IDX_APB2EN, 22U), /*!< DBGMCU clock */
/* APB1 peripherals */
RCU_TIMER2 = RCU_REGIDX_BIT(IDX_APB1EN, 1U), /*!< TIMER2 clock */
RCU_TIMER5 = RCU_REGIDX_BIT(IDX_APB1EN, 4U), /*!< TIMER5 clock */
RCU_TIMER13 = RCU_REGIDX_BIT(IDX_APB1EN, 8U), /*!< TIMER13 clock */
RCU_WWDGT = RCU_REGIDX_BIT(IDX_APB1EN, 11U), /*!< WWDGT clock */
RCU_SPI1 = RCU_REGIDX_BIT(IDX_APB1EN, 14U), /*!< SPI1 clock */
RCU_USART1 = RCU_REGIDX_BIT(IDX_APB1EN, 17U), /*!< USART1 clock */
RCU_I2C0 = RCU_REGIDX_BIT(IDX_APB1EN, 21U), /*!< I2C0 clock */
RCU_I2C1 = RCU_REGIDX_BIT(IDX_APB1EN, 22U), /*!< I2C1 clock */
RCU_PMU = RCU_REGIDX_BIT(IDX_APB1EN, 28U), /*!< PMU clock */
/* Backup domain control(BDCTL) */
RCU_RTC = RCU_REGIDX_BIT(IDX_BDCTL, 15U) /*!< RTC clock */
}rcu_periph_enum;
/* peripheral clock enable when sleep mode*/
typedef enum
{
/* AHB peripherals */
RCU_SRAM_SLP = RCU_REGIDX_BIT(IDX_AHBEN, 2U), /*!< SRAM clock */
RCU_FMC_SLP = RCU_REGIDX_BIT(IDX_AHBEN, 4U), /*!< FMC clock */
}rcu_periph_sleep_enum;
/* peripherals reset */
typedef enum
{
/* AHB peripherals reset */
RCU_GPIOARST = RCU_REGIDX_BIT(IDX_AHBRST, 17U), /*!< GPIOA reset */
RCU_GPIOBRST = RCU_REGIDX_BIT(IDX_AHBRST, 18U), /*!< GPIOB reset */
RCU_GPIOCRST = RCU_REGIDX_BIT(IDX_AHBRST, 19U), /*!< GPIOC reset */
RCU_GPIOFRST = RCU_REGIDX_BIT(IDX_AHBRST, 22U), /*!< GPIOF reset */
/* APB2 peripherals reset */
RCU_CFGCMPRST = RCU_REGIDX_BIT(IDX_APB2RST, 0U), /*!< CFGCMP reset */
RCU_ADCRST = RCU_REGIDX_BIT(IDX_APB2RST, 9U), /*!< ADC reset */
RCU_TIMER0RST = RCU_REGIDX_BIT(IDX_APB2RST, 11U), /*!< TIMER0 reset */
RCU_SPI0RST = RCU_REGIDX_BIT(IDX_APB2RST, 12U), /*!< SPI0 reset */
RCU_USART0RST = RCU_REGIDX_BIT(IDX_APB2RST, 14U), /*!< USART0 reset */
RCU_TIMER14RST = RCU_REGIDX_BIT(IDX_APB2RST, 16U), /*!< TIMER14 reset */
RCU_TIMER15RST = RCU_REGIDX_BIT(IDX_APB2RST, 17U), /*!< TIMER15 reset */
RCU_TIMER16RST = RCU_REGIDX_BIT(IDX_APB2RST, 18U), /*!< TIMER16 reset */
/* APB1 peripherals reset */
RCU_TIMER2RST = RCU_REGIDX_BIT(IDX_APB1RST, 1U), /*!< TIMER2 reset */
RCU_TIMER5RST = RCU_REGIDX_BIT(IDX_APB1RST, 4U), /*!< TIMER5 reset */
RCU_TIMER13RST = RCU_REGIDX_BIT(IDX_APB1RST, 8U), /*!< TIMER13 reset */
RCU_WWDGTRST = RCU_REGIDX_BIT(IDX_APB1RST, 11U), /*!< WWDGT reset */
RCU_SPI1RST = RCU_REGIDX_BIT(IDX_APB1RST, 14U), /*!< SPI1 reset */
RCU_USART1RST = RCU_REGIDX_BIT(IDX_APB1RST, 17U), /*!< USART1 reset */
RCU_I2C0RST = RCU_REGIDX_BIT(IDX_APB1RST, 21U), /*!< I2C0 reset */
RCU_I2C1RST = RCU_REGIDX_BIT(IDX_APB1RST, 22U), /*!< I2C1 reset */
RCU_PMURST = RCU_REGIDX_BIT(IDX_APB1RST, 28U), /*!< PMU reset */
}rcu_periph_reset_enum;
/* clock stabilization and peripheral reset flags */
typedef enum
{
RCU_FLAG_IRC40KSTB = RCU_REGIDX_BIT(IDX_RSTSCK, 1U), /*!< IRC40K stabilization flags */
RCU_FLAG_LXTALSTB = RCU_REGIDX_BIT(IDX_BDCTL, 1U), /*!< LXTAL stabilization flags */
RCU_FLAG_IRC8MSTB = RCU_REGIDX_BIT(IDX_CTL0, 1U), /*!< IRC8M stabilization flags */
RCU_FLAG_HXTALSTB = RCU_REGIDX_BIT(IDX_CTL0, 17U), /*!< HXTAL stabilization flags */
RCU_FLAG_PLLSTB = RCU_REGIDX_BIT(IDX_CTL0, 25U), /*!< PLL stabilization flags */
RCU_FLAG_IRC28MSTB = RCU_REGIDX_BIT(IDX_CTL1, 1U), /*!< IRC28M stabilization flags */
RCU_FLAG_V12RST = RCU_REGIDX_BIT(IDX_RSTSCK, 23U), /*!< V12 reset flags */
RCU_FLAG_OBLRST = RCU_REGIDX_BIT(IDX_RSTSCK, 25U), /*!< OBL reset flags */
RCU_FLAG_EPRST = RCU_REGIDX_BIT(IDX_RSTSCK, 26U), /*!< EPR reset flags */
RCU_FLAG_PORRST = RCU_REGIDX_BIT(IDX_RSTSCK, 27U), /*!< power reset flags */
RCU_FLAG_SWRST = RCU_REGIDX_BIT(IDX_RSTSCK, 28U), /*!< SW reset flags */
RCU_FLAG_FWDGTRST = RCU_REGIDX_BIT(IDX_RSTSCK, 29U), /*!< FWDGT reset flags */
RCU_FLAG_WWDGTRST = RCU_REGIDX_BIT(IDX_RSTSCK, 30U), /*!< WWDGT reset flags */
RCU_FLAG_LPRST = RCU_REGIDX_BIT(IDX_RSTSCK, 31U) /*!< LP reset flags */
}rcu_flag_enum;
/* clock stabilization and ckm interrupt flags */
typedef enum
{
RCU_INT_FLAG_IRC40KSTB = RCU_REGIDX_BIT(IDX_INT, 0U), /*!< IRC40K stabilization interrupt flag */
RCU_INT_FLAG_LXTALSTB = RCU_REGIDX_BIT(IDX_INT, 1U), /*!< LXTAL stabilization interrupt flag */
RCU_INT_FLAG_IRC8MSTB = RCU_REGIDX_BIT(IDX_INT, 2U), /*!< IRC8M stabilization interrupt flag */
RCU_INT_FLAG_HXTALSTB = RCU_REGIDX_BIT(IDX_INT, 3U), /*!< HXTAL stabilization interrupt flag */
RCU_INT_FLAG_PLLSTB = RCU_REGIDX_BIT(IDX_INT, 4U), /*!< PLL stabilization interrupt flag */
RCU_INT_FLAG_IRC28MSTB = RCU_REGIDX_BIT(IDX_INT, 5U), /*!< IRC28M stabilization interrupt flag */
RCU_INT_FLAG_CKM = RCU_REGIDX_BIT(IDX_INT, 7U), /*!< CKM interrupt flag */
}rcu_int_flag_enum;
/* clock stabilization and stuck interrupt flags clear */
typedef enum
{
RCU_INT_FLAG_IRC40KSTB_CLR = RCU_REGIDX_BIT(IDX_INT, 16U), /*!< IRC40K stabilization interrupt flags clear */
RCU_INT_FLAG_LXTALSTB_CLR = RCU_REGIDX_BIT(IDX_INT, 17U), /*!< LXTAL stabilization interrupt flags clear */
RCU_INT_FLAG_IRC8MSTB_CLR = RCU_REGIDX_BIT(IDX_INT, 18U), /*!< IRC8M stabilization interrupt flags clear */
RCU_INT_FLAG_HXTALSTB_CLR = RCU_REGIDX_BIT(IDX_INT, 19U), /*!< HXTAL stabilization interrupt flags clear */
RCU_INT_FLAG_PLLSTB_CLR = RCU_REGIDX_BIT(IDX_INT, 20U), /*!< PLL stabilization interrupt flags clear */
RCU_INT_FLAG_IRC28MSTB_CLR = RCU_REGIDX_BIT(IDX_INT, 21U), /*!< IRC28M stabilization interrupt flags clear */
RCU_INT_FLAG_CKM_CLR = RCU_REGIDX_BIT(IDX_INT, 23U), /*!< CKM interrupt flags clear */
}rcu_int_flag_clear_enum;
/* clock stabilization interrupt enable or disable */
typedef enum
{
RCU_INT_IRC40KSTB = RCU_REGIDX_BIT(IDX_INT, 8U), /*!< IRC40K stabilization interrupt */
RCU_INT_LXTALSTB = RCU_REGIDX_BIT(IDX_INT, 9U), /*!< LXTAL stabilization interrupt */
RCU_INT_IRC8MSTB = RCU_REGIDX_BIT(IDX_INT, 10U), /*!< IRC8M stabilization interrupt */
RCU_INT_HXTALSTB = RCU_REGIDX_BIT(IDX_INT, 11U), /*!< HXTAL stabilization interrupt */
RCU_INT_PLLSTB = RCU_REGIDX_BIT(IDX_INT, 12U), /*!< PLL stabilization interrupt */
RCU_INT_IRC28MSTB = RCU_REGIDX_BIT(IDX_INT, 13U), /*!< IRC28M stabilization interrupt */
}rcu_int_enum;
/* ADC clock source */
typedef enum
{
RCU_ADCCK_IRC28M_DIV2 = 0U, /*!< ADC clock source select IRC28M/2 */
RCU_ADCCK_IRC28M, /*!< ADC clock source select IRC28M */
RCU_ADCCK_APB2_DIV2, /*!< ADC clock source select APB2/2 */
RCU_ADCCK_AHB_DIV3, /*!< ADC clock source select AHB/3 */
RCU_ADCCK_APB2_DIV4, /*!< ADC clock source select APB2/4 */
RCU_ADCCK_AHB_DIV5, /*!< ADC clock source select AHB/5 */
RCU_ADCCK_APB2_DIV6, /*!< ADC clock source select APB2/6 */
RCU_ADCCK_AHB_DIV7, /*!< ADC clock source select AHB/7 */
RCU_ADCCK_APB2_DIV8, /*!< ADC clock source select APB2/8 */
RCU_ADCCK_AHB_DIV9 /*!< ADC clock source select AHB/9 */
}rcu_adc_clock_enum;
/* oscillator types */
typedef enum
{
RCU_HXTAL = RCU_REGIDX_BIT(IDX_CTL0, 16U), /*!< HXTAL */
RCU_LXTAL = RCU_REGIDX_BIT(IDX_BDCTL, 0U), /*!< LXTAL */
RCU_IRC8M = RCU_REGIDX_BIT(IDX_CTL0, 0U), /*!< IRC8M */
RCU_IRC28M = RCU_REGIDX_BIT(IDX_CTL1, 0U), /*!< IRC28M */
RCU_IRC40K = RCU_REGIDX_BIT(IDX_RSTSCK, 0U), /*!< IRC40K */
RCU_PLL_CK = RCU_REGIDX_BIT(IDX_CTL0, 24U) /*!< PLL */
}rcu_osci_type_enum;
/* rcu clock frequency */
typedef enum
{
CK_SYS = 0U, /*!< system clock */
CK_AHB, /*!< AHB clock */
CK_APB1, /*!< APB1 clock */
CK_APB2, /*!< APB2 clock */
CK_ADC, /*!< ADC clock */
CK_USART /*!< USART clock */
}rcu_clock_freq_enum;
/* system clock source select */
#define CFG0_SCS(regval) (BITS(0,1) & ((uint32_t)(regval) << 0))
#define RCU_CKSYSSRC_IRC8M CFG0_SCS(0) /*!< system clock source select IRC8M */
#define RCU_CKSYSSRC_HXTAL CFG0_SCS(1) /*!< system clock source select HXTAL */
#define RCU_CKSYSSRC_PLL CFG0_SCS(2) /*!< system clock source select PLL */
/* system clock source select status */
#define CFG0_SCSS(regval) (BITS(2,3) & ((uint32_t)(regval) << 2))
#define RCU_SCSS_IRC8M CFG0_SCSS(0) /*!< system clock source select IRC8M */
#define RCU_SCSS_HXTAL CFG0_SCSS(1) /*!< system clock source select HXTAL */
#define RCU_SCSS_PLL CFG0_SCSS(2) /*!< system clock source select PLL */
/* AHB prescaler selection */
#define CFG0_AHBPSC(regval) (BITS(4,7) & ((uint32_t)(regval) << 4))
#define RCU_AHB_CKSYS_DIV1 CFG0_AHBPSC(0) /*!< AHB prescaler select CK_SYS */
#define RCU_AHB_CKSYS_DIV2 CFG0_AHBPSC(8) /*!< AHB prescaler select CK_SYS/2 */
#define RCU_AHB_CKSYS_DIV4 CFG0_AHBPSC(9) /*!< AHB prescaler select CK_SYS/4 */
#define RCU_AHB_CKSYS_DIV8 CFG0_AHBPSC(10) /*!< AHB prescaler select CK_SYS/8 */
#define RCU_AHB_CKSYS_DIV16 CFG0_AHBPSC(11) /*!< AHB prescaler select CK_SYS/16 */
#define RCU_AHB_CKSYS_DIV64 CFG0_AHBPSC(12) /*!< AHB prescaler select CK_SYS/64 */
#define RCU_AHB_CKSYS_DIV128 CFG0_AHBPSC(13) /*!< AHB prescaler select CK_SYS/128 */
#define RCU_AHB_CKSYS_DIV256 CFG0_AHBPSC(14) /*!< AHB prescaler select CK_SYS/256 */
#define RCU_AHB_CKSYS_DIV512 CFG0_AHBPSC(15) /*!< AHB prescaler select CK_SYS/512 */
/* APB1 prescaler selection */
#define CFG0_APB1PSC(regval) (BITS(8,10) & ((uint32_t)(regval) << 8))
#define RCU_APB1_CKAHB_DIV1 CFG0_APB1PSC(0) /*!< APB1 prescaler select CK_AHB */
#define RCU_APB1_CKAHB_DIV2 CFG0_APB1PSC(4) /*!< APB1 prescaler select CK_AHB/2 */
#define RCU_APB1_CKAHB_DIV4 CFG0_APB1PSC(5) /*!< APB1 prescaler select CK_AHB/4 */
#define RCU_APB1_CKAHB_DIV8 CFG0_APB1PSC(6) /*!< APB1 prescaler select CK_AHB/8 */
#define RCU_APB1_CKAHB_DIV16 CFG0_APB1PSC(7) /*!< APB1 prescaler select CK_AHB/16 */
/* APB2 prescaler selection */
#define CFG0_APB2PSC(regval) (BITS(11,13) & ((uint32_t)(regval) << 11))
#define RCU_APB2_CKAHB_DIV1 CFG0_APB2PSC(0) /*!< APB2 prescaler select CK_AHB */
#define RCU_APB2_CKAHB_DIV2 CFG0_APB2PSC(4) /*!< APB2 prescaler select CK_AHB/2 */
#define RCU_APB2_CKAHB_DIV4 CFG0_APB2PSC(5) /*!< APB2 prescaler select CK_AHB/4 */
#define RCU_APB2_CKAHB_DIV8 CFG0_APB2PSC(6) /*!< APB2 prescaler select CK_AHB/8 */
#define RCU_APB2_CKAHB_DIV16 CFG0_APB2PSC(7) /*!< APB2 prescaler select CK_AHB/16 */
/* ADC clock prescaler selection */
#define CFG0_ADCPSC(regval) (BITS(14,15) & ((uint32_t)(regval) << 14))
#define RCU_ADC_CKAPB2_DIV2 CFG0_ADCPSC(0) /*!< ADC clock prescaler select CK_APB2/2 */
#define RCU_ADC_CKAPB2_DIV4 CFG0_ADCPSC(1) /*!< ADC clock prescaler select CK_APB2/4 */
#define RCU_ADC_CKAPB2_DIV6 CFG0_ADCPSC(2) /*!< ADC clock prescaler select CK_APB2/6 */
#define RCU_ADC_CKAPB2_DIV8 CFG0_ADCPSC(3) /*!< ADC clock prescaler select CK_APB2/8 */
/* PLL clock source selection */
#define RCU_PLLSRC_IRC8M_DIV2 (uint32_t)0x00000000U /*!< PLL clock source select IRC8M/2 */
#define RCU_PLLSRC_HXTAL RCU_CFG0_PLLSEL /*!< PLL clock source select HXTAL */
/* HXTAL divider for PLL source clock selection */
#define RCU_PLLPREDV (uint32_t)0x00000000U /*!< HXTAL clock selected */
#define RCU_PLLPREDV_DIV2 RCU_CFG0_PLLPREDV /*!< HXTAL/2 clock selected */
/* PLL multiply factor */
#define CFG0_PLLMF(regval) (BITS(18,21) & ((uint32_t)(regval) << 18))
#define RCU_PLL_MUL2 CFG0_PLLMF(0) /*!< PLL source clock multiply by 2 */
#define RCU_PLL_MUL3 CFG0_PLLMF(1) /*!< PLL source clock multiply by 3 */
#define RCU_PLL_MUL4 CFG0_PLLMF(2) /*!< PLL source clock multiply by 4 */
#define RCU_PLL_MUL5 CFG0_PLLMF(3) /*!< PLL source clock multiply by 5 */
#define RCU_PLL_MUL6 CFG0_PLLMF(4) /*!< PLL source clock multiply by 6 */
#define RCU_PLL_MUL7 CFG0_PLLMF(5) /*!< PLL source clock multiply by 7 */
#define RCU_PLL_MUL8 CFG0_PLLMF(6) /*!< PLL source clock multiply by 8 */
#define RCU_PLL_MUL9 CFG0_PLLMF(7) /*!< PLL source clock multiply by 9 */
#define RCU_PLL_MUL10 CFG0_PLLMF(8) /*!< PLL source clock multiply by 10 */
#define RCU_PLL_MUL11 CFG0_PLLMF(9) /*!< PLL source clock multiply by 11 */
#define RCU_PLL_MUL12 CFG0_PLLMF(10) /*!< PLL source clock multiply by 12 */
#define RCU_PLL_MUL13 CFG0_PLLMF(11) /*!< PLL source clock multiply by 13 */
#define RCU_PLL_MUL14 CFG0_PLLMF(12) /*!< PLL source clock multiply by 14 */
#define RCU_PLL_MUL15 CFG0_PLLMF(13) /*!< PLL source clock multiply by 15 */
#define RCU_PLL_MUL16 CFG0_PLLMF(14) /*!< PLL source clock multiply by 16 */
#define RCU_PLL_MUL17 (RCU_CFG0_PLLMF4 | CFG0_PLLMF(0)) /*!< PLL source clock multiply by 17 */
#define RCU_PLL_MUL18 (RCU_CFG0_PLLMF4 | CFG0_PLLMF(1)) /*!< PLL source clock multiply by 18 */
#define RCU_PLL_MUL19 (RCU_CFG0_PLLMF4 | CFG0_PLLMF(2)) /*!< PLL source clock multiply by 19 */
#define RCU_PLL_MUL20 (RCU_CFG0_PLLMF4 | CFG0_PLLMF(3)) /*!< PLL source clock multiply by 20 */
#define RCU_PLL_MUL21 (RCU_CFG0_PLLMF4 | CFG0_PLLMF(4)) /*!< PLL source clock multiply by 21 */
#define RCU_PLL_MUL22 (RCU_CFG0_PLLMF4 | CFG0_PLLMF(5)) /*!< PLL source clock multiply by 22 */
#define RCU_PLL_MUL23 (RCU_CFG0_PLLMF4 | CFG0_PLLMF(6)) /*!< PLL source clock multiply by 23 */
#define RCU_PLL_MUL24 (RCU_CFG0_PLLMF4 | CFG0_PLLMF(7)) /*!< PLL source clock multiply by 24 */
#define RCU_PLL_MUL25 (RCU_CFG0_PLLMF4 | CFG0_PLLMF(8)) /*!< PLL source clock multiply by 25 */
#define RCU_PLL_MUL26 (RCU_CFG0_PLLMF4 | CFG0_PLLMF(9)) /*!< PLL source clock multiply by 26 */
#define RCU_PLL_MUL27 (RCU_CFG0_PLLMF4 | CFG0_PLLMF(10)) /*!< PLL source clock multiply by 27 */
#define RCU_PLL_MUL28 (RCU_CFG0_PLLMF4 | CFG0_PLLMF(11)) /*!< PLL source clock multiply by 28 */
#define RCU_PLL_MUL29 (RCU_CFG0_PLLMF4 | CFG0_PLLMF(12)) /*!< PLL source clock multiply by 29 */
#define RCU_PLL_MUL30 (RCU_CFG0_PLLMF4 | CFG0_PLLMF(13)) /*!< PLL source clock multiply by 30 */
#define RCU_PLL_MUL31 (RCU_CFG0_PLLMF4 | CFG0_PLLMF(14)) /*!< PLL source clock multiply by 31 */
#define RCU_PLL_MUL32 (RCU_CFG0_PLLMF4 | CFG0_PLLMF(15)) /*!< PLL source clock multiply by 32 */
/* CK_OUT clock source selection */
#define CFG0_CKOUTSEL(regval) (BITS(24,26) & ((uint32_t)(regval) << 24))
#define RCU_CKOUTSRC_NONE CFG0_CKOUTSEL(0) /*!< no clock selected */
#define RCU_CKOUTSRC_IRC28M CFG0_CKOUTSEL(1) /*!< CK_OUT clock source select IRC28M */
#define RCU_CKOUTSRC_IRC40K CFG0_CKOUTSEL(2) /*!< CK_OUT clock source select IRC40K */
#define RCU_CKOUTSRC_LXTAL CFG0_CKOUTSEL(3) /*!< CK_OUT clock source select LXTAL */
#define RCU_CKOUTSRC_CKSYS CFG0_CKOUTSEL(4) /*!< CK_OUT clock source select CKSYS */
#define RCU_CKOUTSRC_IRC8M CFG0_CKOUTSEL(5) /*!< CK_OUT clock source select IRC8M */
#define RCU_CKOUTSRC_HXTAL CFG0_CKOUTSEL(6) /*!< CK_OUT clock source select HXTAL */
#define RCU_CKOUTSRC_CKPLL_DIV1 (RCU_CFG0_PLLDV | CFG0_CKOUTSEL(7)) /*!< CK_OUT clock source select CK_PLL */
#define RCU_CKOUTSRC_CKPLL_DIV2 CFG0_CKOUTSEL(7) /*!< CK_OUT clock source select CK_PLL/2 */
/* CK_OUT divider */
#define CFG0_CKOUTDIV(regval) (BITS(28,30) & ((uint32_t)(regval) << 28))
#define RCU_CKOUT_DIV1 CFG0_CKOUTDIV(0) /*!< CK_OUT is divided by 1 */
#define RCU_CKOUT_DIV2 CFG0_CKOUTDIV(1) /*!< CK_OUT is divided by 2 */
#define RCU_CKOUT_DIV4 CFG0_CKOUTDIV(2) /*!< CK_OUT is divided by 4 */
#define RCU_CKOUT_DIV8 CFG0_CKOUTDIV(3) /*!< CK_OUT is divided by 8 */
#define RCU_CKOUT_DIV16 CFG0_CKOUTDIV(4) /*!< CK_OUT is divided by 16 */
#define RCU_CKOUT_DIV32 CFG0_CKOUTDIV(5) /*!< CK_OUT is divided by 32 */
#define RCU_CKOUT_DIV64 CFG0_CKOUTDIV(6) /*!< CK_OUT is divided by 64 */
#define RCU_CKOUT_DIV128 CFG0_CKOUTDIV(7) /*!< CK_OUT is divided by 128 */
/* CK_PLL divide by 1 or 2 for CK_OUT */
#define RCU_PLLDV_CKPLL_DIV2 (uint32_t)0x00000000U /*!< CK_PLL divide by 2 for CK_OUT */
#define RCU_PLLDV_CKPLL RCU_CFG0_PLLDV /*!< CK_PLL divide by 1 for CK_OUT */
/* LXTAL drive capability */
#define BDCTL_LXTALDRI(regval) (BITS(3,4) & ((uint32_t)(regval) << 3))
#define RCU_LXTAL_LOWDRI BDCTL_LXTALDRI(0) /*!< lower driving capability */
#define RCU_LXTAL_MED_LOWDRI BDCTL_LXTALDRI(1) /*!< medium low driving capability */
#define RCU_LXTAL_MED_HIGHDRI BDCTL_LXTALDRI(2) /*!< medium high driving capability */
#define RCU_LXTAL_HIGHDRI BDCTL_LXTALDRI(3) /*!< higher driving capability */
/* RTC clock entry selection */
#define BDCTL_RTCSRC(regval) (BITS(8,9) & ((uint32_t)(regval) << 8))
#define RCU_RTCSRC_NONE BDCTL_RTCSRC(0) /*!< no clock selected */
#define RCU_RTCSRC_LXTAL BDCTL_RTCSRC(1) /*!< LXTAL selected as RTC source clock */
#define RCU_RTCSRC_IRC40K BDCTL_RTCSRC(2) /*!< IRC40K selected as RTC source clock */
#define RCU_RTCSRC_HXTAL_DIV32 BDCTL_RTCSRC(3) /*!< HXTAL/32 selected as RTC source clock */
/* CK_HXTAL divider previous PLL */
#define CFG1_PREDV(regval) (BITS(0,3) & ((uint32_t)(regval) << 0))
#define RCU_PLL_PREDV1 CFG1_PREDV(0) /*!< PLL not divided */
#define RCU_PLL_PREDV2 CFG1_PREDV(1) /*!< PLL divided by 2 */
#define RCU_PLL_PREDV3 CFG1_PREDV(2) /*!< PLL divided by 3 */
#define RCU_PLL_PREDV4 CFG1_PREDV(3) /*!< PLL divided by 4 */
#define RCU_PLL_PREDV5 CFG1_PREDV(4) /*!< PLL divided by 5 */
#define RCU_PLL_PREDV6 CFG1_PREDV(5) /*!< PLL divided by 6 */
#define RCU_PLL_PREDV7 CFG1_PREDV(6) /*!< PLL divided by 7 */
#define RCU_PLL_PREDV8 CFG1_PREDV(7) /*!< PLL divided by 8 */
#define RCU_PLL_PREDV9 CFG1_PREDV(8) /*!< PLL divided by 9 */
#define RCU_PLL_PREDV10 CFG1_PREDV(9) /*!< PLL divided by 10 */
#define RCU_PLL_PREDV11 CFG1_PREDV(10) /*!< PLL divided by 11 */
#define RCU_PLL_PREDV12 CFG1_PREDV(11) /*!< PLL divided by 12 */
#define RCU_PLL_PREDV13 CFG1_PREDV(12) /*!< PLL divided by 13 */
#define RCU_PLL_PREDV14 CFG1_PREDV(13) /*!< PLL divided by 14 */
#define RCU_PLL_PREDV15 CFG1_PREDV(14) /*!< PLL divided by 15 */
#define RCU_PLL_PREDV16 CFG1_PREDV(15) /*!< PLL divided by 16 */
/* USART0 clock source selection */
#define CFG2_USART0SEL(regval) (BITS(0,1) & ((uint32_t)(regval) << 0))
#define RCU_USART0SRC_CKAPB2 CFG2_USART0SEL(0) /*!< CK_USART0 select CK_APB2 */
#define RCU_USART0SRC_CKSYS CFG2_USART0SEL(1) /*!< CK_USART0 select CK_SYS */
#define RCU_USART0SRC_LXTAL CFG2_USART0SEL(2) /*!< CK_USART0 select LXTAL */
#define RCU_USART0SRC_IRC8M CFG2_USART0SEL(3) /*!< CK_USART0 select IRC8M */
/* ADC clock source selection */
#define RCU_ADCSRC_IRC28M (uint32_t)0x00000000U /*!< ADC clock source select */
#define RCU_ADCSRC_AHB_APB2DIV RCU_CFG2_ADCSEL /*!< ADC clock source select */
/* IRC28M clock divider for ADC */
#define RCU_ADC_IRC28M_DIV2 (uint32_t)0x00000000U /*!< IRC28M/2 select to ADC clock */
#define RCU_ADC_IRC28M_DIV1 RCU_CFG2_IRC28MDIV /*!< IRC28M select to ADC clock */
/* Deep-sleep mode voltage */
#define DSV_DSLPVS(regval) (BITS(0,1) & ((uint32_t)(regval) << 0))
#define RCU_DEEPSLEEP_V_1_0 DSV_DSLPVS(0) /*!< core voltage is 1.0V in deep-sleep mode */
#define RCU_DEEPSLEEP_V_0_9 DSV_DSLPVS(1) /*!< core voltage is 0.9V in deep-sleep mode */
#define RCU_DEEPSLEEP_V_0_8 DSV_DSLPVS(2) /*!< core voltage is 0.8V in deep-sleep mode */
#define RCU_DEEPSLEEP_V_1_2 DSV_DSLPVS(3) /*!< core voltage is 1.2V in deep-sleep mode */
/* function declarations */
/* deinitialize the RCU */
void rcu_deinit(void);
/* enable the peripherals clock */
void rcu_periph_clock_enable(rcu_periph_enum periph);
/* disable the peripherals clock */
void rcu_periph_clock_disable(rcu_periph_enum periph);
/* enable the peripherals clock when sleep mode */
void rcu_periph_clock_sleep_enable(rcu_periph_sleep_enum periph);
/* disable the peripherals clock when sleep mode */
void rcu_periph_clock_sleep_disable(rcu_periph_sleep_enum periph);
/* reset the peripherals */
void rcu_periph_reset_enable(rcu_periph_reset_enum periph_reset);
/* disable reset the peripheral */
void rcu_periph_reset_disable(rcu_periph_reset_enum periph_reset);
/* reset the BKP */
void rcu_bkp_reset_enable(void);
/* disable the BKP reset */
void rcu_bkp_reset_disable(void);
/* configure the system clock source */
void rcu_system_clock_source_config(uint32_t ck_sys);
/* get the system clock source */
uint32_t rcu_system_clock_source_get(void);
/* configure the AHB prescaler selection */
void rcu_ahb_clock_config(uint32_t ck_ahb);
/* configure the APB1 prescaler selection */
void rcu_apb1_clock_config(uint32_t ck_apb1);
/* configure the APB2 prescaler selection */
void rcu_apb2_clock_config(uint32_t ck_apb2);
/* configure the ADC clock source and prescaler selection */
void rcu_adc_clock_config(rcu_adc_clock_enum ck_adc);
/* configure the CK_OUT clock source and divider */
void rcu_ckout_config(uint32_t ckout_src, uint32_t ckout_div);
/* configure the PLL clock source selection and PLL multiply factor */
void rcu_pll_config(uint32_t pll_src, uint32_t pll_mul);
/* configure the USART clock source selection */
void rcu_usart_clock_config(uint32_t ck_usart);
/* configure the RTC clock source selection */
void rcu_rtc_clock_config(uint32_t rtc_clock_source);
/* configure the HXTAL divider used as input of PLL */
void rcu_hxtal_prediv_config(uint32_t hxtal_prediv);
/* configure the LXTAL drive capability */
void rcu_lxtal_drive_capability_config(uint32_t lxtal_dricap);
/* wait until oscillator stabilization flags is SET */
ErrStatus rcu_osci_stab_wait(rcu_osci_type_enum osci);
/* turn on the oscillator */
void rcu_osci_on(rcu_osci_type_enum osci);
/* turn off the oscillator */
void rcu_osci_off(rcu_osci_type_enum osci);
/* enable the oscillator bypass mode */
void rcu_osci_bypass_mode_enable(rcu_osci_type_enum osci);
/* disable the oscillator bypass mode */
void rcu_osci_bypass_mode_disable(rcu_osci_type_enum osci);
/* enable the HXTAL clock monitor */
void rcu_hxtal_clock_monitor_enable(void);
/* disable the HXTAL clock monitor */
void rcu_hxtal_clock_monitor_disable(void);
/* set the IRC8M adjust value */
void rcu_irc8m_adjust_value_set(uint8_t irc8m_adjval);
/* set the IRC28M adjust value */
void rcu_irc28m_adjust_value_set(uint8_t irc28m_adjval);
/* unlock the voltage key */
void rcu_voltage_key_unlock(void);
/* set the deep sleep mode voltage */
void rcu_deepsleep_voltage_set(uint32_t dsvol);
/* get the system clock, bus and peripheral clock frequency */
uint32_t rcu_clock_freq_get(rcu_clock_freq_enum clock);
/* get the clock stabilization and periphral reset flags */
FlagStatus rcu_flag_get(rcu_flag_enum flag);
/* clear the reset flag */
void rcu_all_reset_flag_clear(void);
/* get the clock stabilization interrupt and ckm flags */
FlagStatus rcu_interrupt_flag_get(rcu_int_flag_enum int_flag);
/* clear the interrupt flags */
void rcu_interrupt_flag_clear(rcu_int_flag_clear_enum int_flag_clear);
/* enable the stabilization interrupt */
void rcu_interrupt_enable(rcu_int_enum stab_int);
/* disable the stabilization interrupt */
void rcu_interrupt_disable(rcu_int_enum stab_int);
#endif /* GD32E23X_RCU_H */

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/*!
\file gd32e23x_rtc.h
\brief definitions for the RTC
\version 2024-02-22, V2.1.0, firmware for GD32E23x
*/
/*
Copyright (c) 2024, GigaDevice Semiconductor Inc.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.
*/
#ifndef GD32E23X_RTC_H
#define GD32E23X_RTC_H
#include "gd32e23x.h"
/* RTC definitions */
#define RTC RTC_BASE
/* registers definitions */
#define RTC_TIME REG32((RTC) + 0x00000000U) /*!< RTC time of day register */
#define RTC_DATE REG32((RTC) + 0x00000004U) /*!< RTC date register */
#define RTC_CTL REG32((RTC) + 0x00000008U) /*!< RTC control register */
#define RTC_STAT REG32((RTC) + 0x0000000CU) /*!< RTC status register */
#define RTC_PSC REG32((RTC) + 0x00000010U) /*!< RTC time prescaler register */
#define RTC_ALRM0TD REG32((RTC) + 0x0000001CU) /*!< RTC alarm 0 time and date register */
#define RTC_WPK REG32((RTC) + 0x00000024U) /*!< RTC write protection key register */
#define RTC_SS REG32((RTC) + 0x00000028U) /*!< RTC sub second register */
#define RTC_SHIFTCTL REG32((RTC) + 0x0000002CU) /*!< RTC shift function control register */
#define RTC_TTS REG32((RTC) + 0x00000030U) /*!< RTC time of timestamp register */
#define RTC_DTS REG32((RTC) + 0x00000034U) /*!< RTC date of timestamp register */
#define RTC_SSTS REG32((RTC) + 0x00000038U) /*!< RTC sub second of timestamp register */
#define RTC_HRFC REG32((RTC) + 0x0000003CU) /*!< RTC high resolution frequency compensation registor */
#define RTC_TAMP REG32((RTC) + 0x00000040U) /*!< RTC tamper register */
#define RTC_ALRM0SS REG32((RTC) + 0x00000044U) /*!< RTC alarm 0 sub second register */
#define RTC_BKP0 REG32((RTC) + 0x00000050U) /*!< RTC backup 0 register */
#define RTC_BKP1 REG32((RTC) + 0x00000054U) /*!< RTC backup 1 register */
#define RTC_BKP2 REG32((RTC) + 0x00000058U) /*!< RTC backup 2 register */
#define RTC_BKP3 REG32((RTC) + 0x0000005CU) /*!< RTC backup 3 register */
#define RTC_BKP4 REG32((RTC) + 0x00000060U) /*!< RTC backup 4 register */
/* bits definitions */
/* RTC_TIME */
#define RTC_TIME_SCU BITS(0,3) /*!< second units in BCD code */
#define RTC_TIME_SCT BITS(4,6) /*!< second tens in BCD code */
#define RTC_TIME_MNU BITS(8,11) /*!< minute units in BCD code */
#define RTC_TIME_MNT BITS(12,14) /*!< minute tens in BCD code */
#define RTC_TIME_HRU BITS(16,19) /*!< hour units in BCD code */
#define RTC_TIME_HRT BITS(20,21) /*!< hour tens in BCD code */
#define RTC_TIME_PM BIT(22) /*!< AM/PM notation */
/* RTC_DATE */
#define RTC_DATE_DAYU BITS(0,3) /*!< date units in BCD code */
#define RTC_DATE_DAYT BITS(4,5) /*!< date tens in BCD code */
#define RTC_DATE_MONU BITS(8,11) /*!< month units in BCD code */
#define RTC_DATE_MONT BIT(12) /*!< month tens in BCD code */
#define RTC_DATE_DOW BITS(13,15) /*!< day of week units */
#define RTC_DATE_YRU BITS(16,19) /*!< year units in BCD code */
#define RTC_DATE_YRT BITS(20,23) /*!< year tens in BCD code */
/* RTC_CTL */
#define RTC_CTL_TSEG BIT(3) /*!< valid event edge of time-stamp */
#define RTC_CTL_REFEN BIT(4) /*!< reference clock detection function enable */
#define RTC_CTL_BPSHAD BIT(5) /*!< shadow registers bypass control */
#define RTC_CTL_CS BIT(6) /*!< display format of clock system */
#define RTC_CTL_ALRM0EN BIT(8) /*!< alarm function enable */
#define RTC_CTL_TSEN BIT(11) /*!< time-stamp function enable */
#define RTC_CTL_ALRM0IE BIT(12) /*!< RTC alarm interrupt enable */
#define RTC_CTL_TSIE BIT(15) /*!< time-stamp interrupt enable */
#define RTC_CTL_A1H BIT(16) /*!< add 1 hour(summer time change) */
#define RTC_CTL_S1H BIT(17) /*!< subtract 1 hour(winter time change) */
#define RTC_CTL_DSM BIT(18) /*!< daylight saving mark */
#define RTC_CTL_COS BIT(19) /*!< calibration output selection */
#define RTC_CTL_OPOL BIT(20) /*!< output polarity */
#define RTC_CTL_OS BITS(21,22) /*!< output selection */
#define RTC_CTL_COEN BIT(23) /*!< calibration output enable */
/* RTC_STAT */
#define RTC_STAT_ALRM0WF BIT(0) /*!< alarm configuration can be write flag */
#define RTC_STAT_SOPF BIT(3) /*!< shift function operation pending flag */
#define RTC_STAT_YCM BIT(4) /*!< year configuration mark status flag */
#define RTC_STAT_RSYNF BIT(5) /*!< register synchronization flag */
#define RTC_STAT_INITF BIT(6) /*!< initialization state flag */
#define RTC_STAT_INITM BIT(7) /*!< enter initialization mode */
#define RTC_STAT_ALRM0F BIT(8) /*!< alarm occurs flag */
#define RTC_STAT_TSF BIT(11) /*!< time-stamp flag */
#define RTC_STAT_TSOVRF BIT(12) /*!< time-stamp overflow flag */
#define RTC_STAT_TP0F BIT(13) /*!< RTC tamp 0 detected flag */
#define RTC_STAT_TP1F BIT(14) /*!< RTC tamp 1 detected flag */
#define RTC_STAT_SCPF BIT(16) /*!< recalibration pending flag */
/* RTC_PSC */
#define RTC_PSC_FACTOR_S BITS(0,14) /*!< synchronous prescaler factor */
#define RTC_PSC_FACTOR_A BITS(16,22) /*!< asynchronous prescaler factor */
/* RTC_ALRM0TD */
#define RTC_ALRM0TD_SCU BITS(0,3) /*!< second units in BCD code */
#define RTC_ALRM0TD_SCT BITS(4,6) /*!< second tens in BCD code */
#define RTC_ALRM0TD_MSKS BIT(7) /*!< alarm second mask bit */
#define RTC_ALRM0TD_MNU BITS(8,11) /*!< minutes units in BCD code */
#define RTC_ALRM0TD_MNT BITS(12,14) /*!< minutes tens in BCD code */
#define RTC_ALRM0TD_MSKM BIT(15) /*!< alarm minutes mask bit */
#define RTC_ALRM0TD_HRU BITS(16,19) /*!< hour units in BCD code */
#define RTC_ALRM0TD_HRT BITS(20,21) /*!< hour units in BCD code */
#define RTC_ALRM0TD_PM BIT(22) /*!< AM/PM flag */
#define RTC_ALRM0TD_MSKH BIT(23) /*!< alarm hour mask bit */
#define RTC_ALRM0TD_DAYU BITS(24,27) /*!< date units or week day in BCD code */
#define RTC_ALRM0TD_DAYT BITS(28,29) /*!< date tens in BCD code */
#define RTC_ALRM0TD_DOWS BIT(30) /*!< day of week selection */
#define RTC_ALRM0TD_MSKD BIT(31) /*!< alarm date mask bit */
/* RTC_WPK */
#define RTC_WPK_WPK BITS(0,7) /*!< key for write protection */
/* RTC_SS */
#define RTC_SS_SSC BITS(0,15) /*!< sub second value */
/* RTC_SHIFTCTL */
#define RTC_SHIFTCTL_SFS BITS(0,14) /*!< subtract a fraction of a second */
#define RTC_SHIFTCTL_A1S BIT(31) /*!< one second add */
/* RTC_TTS */
#define RTC_TTS_SCU BITS(0,3) /*!< second units in BCD code */
#define RTC_TTS_SCT BITS(4,6) /*!< second units in BCD code */
#define RTC_TTS_MNU BITS(8,11) /*!< minute units in BCD code */
#define RTC_TTS_MNT BITS(12,14) /*!< minute tens in BCD code */
#define RTC_TTS_HRU BITS(16,19) /*!< hour units in BCD code */
#define RTC_TTS_HRT BITS(20,21) /*!< hour tens in BCD code */
#define RTC_TTS_PM BIT(22) /*!< AM/PM notation */
/* RTC_DTS */
#define RTC_DTS_DAYU BITS(0,3) /*!< date units in BCD code */
#define RTC_DTS_DAYT BITS(4,5) /*!< date tens in BCD code */
#define RTC_DTS_MONU BITS(8,11) /*!< month units in BCD code */
#define RTC_DTS_MONT BIT(12) /*!< month tens in BCD code */
#define RTC_DTS_DOW BITS(13,15) /*!< day of week units */
/* RTC_SSTS */
#define RTC_SSTS_SSC BITS(0,15) /*!< timestamp sub second units */
/* RTC_HRFC */
#define RTC_HRFC_CMSK BITS(0,8) /*!< calibration mask number */
#define RTC_HRFC_CWND16 BIT(13) /*!< calibration window select 16 seconds */
#define RTC_HRFC_CWND8 BIT(14) /*!< calibration window select 16 seconds */
#define RTC_HRFC_FREQI BIT(15) /*!< increase RTC frequency by 488.5ppm */
/* RTC_TAMP */
#define RTC_TAMP_TP0EN BIT(0) /*!< tamper 0 detection enable */
#define RTC_TAMP_TP0EG BIT(1) /*!< tamper 0 event trigger edge for RTC tamp 0 input */
#define RTC_TAMP_TPIE BIT(2) /*!< tamper detection interrupt enable */
#define RTC_TAMP_TP1EN BIT(3) /*!< tamper 1 detection enable */
#define RTC_TAMP_TP1EG BIT(4) /*!< tamper 1 event trigger edge for RTC tamp 1 input */
#define RTC_TAMP_TPTS BIT(7) /*!< make tamper function used for timestamp function */
#define RTC_TAMP_FREQ BITS(8,10) /*!< sample frequency of tamper event detection */
#define RTC_TAMP_FLT BITS(11,12) /*!< RTC tamp x filter count setting */
#define RTC_TAMP_PRCH BITS(13,14) /*!< precharge duration time of RTC tamp x */
#define RTC_TAMP_DISPU BIT(15) /*!< RTC tamp x pull up disable bit */
#define RTC_TAMP_PC13VAL BIT(18) /*!< alarm output type control/PC13 output value */
#define RTC_TAMP_PC13MDE BIT(19) /*!< PC13 mode */
#define RTC_TAMP_PC14VAL BIT(20) /*!< PC14 output value */
#define RTC_TAMP_PC14MDE BIT(21) /*!< PC14 mode */
#define RTC_TAMP_PC15VAL BIT(22) /*!< PC15 output value */
#define RTC_TAMP_PC15MDE BIT(23) /*!< PC15 mode */
/* RTC_ALRM0SS */
#define RTC_ALRM0SS_SSC BITS(0,14) /*!< alarm sub second value */
#define RTC_ALRM0SS_MASKSSC BITS(24,27) /*!< mask control bit of SS */
/* RTC_BKP0 */
#define RTC_BKP0_DATA BITS(0,31) /*!< backup domain registers */
/* RTC_BKP1 */
#define RTC_BKP1_DATA BITS(0,31) /*!< backup domain registers */
/* RTC_BKP2 */
#define RTC_BKP2_DATA BITS(0,31) /*!< backup domain registers */
/* RTC_BKP3 */
#define RTC_BKP3_DATA BITS(0,31) /*!< backup domain registers */
/* RTC_BKP4 */
#define RTC_BKP4_DATA BITS(0,31) /*!< backup domain registers */
/* constants definitions */
/* structure for initialization of the RTC */
typedef struct
{
uint8_t rtc_year; /*!< RTC year value: 0x0 - 0x99(BCD format) */
uint8_t rtc_month; /*!< RTC month value */
uint8_t rtc_date; /*!< RTC date value: 0x1 - 0x31(BCD format) */
uint8_t rtc_day_of_week; /*!< RTC weekday value */
uint8_t rtc_hour; /*!< RTC hour value */
uint8_t rtc_minute; /*!< RTC minute value: 0x0 - 0x59(BCD format) */
uint8_t rtc_second; /*!< RTC second value: 0x0 - 0x59(BCD format) */
uint16_t rtc_factor_asyn; /*!< RTC asynchronous prescaler value: 0x0 - 0x7F */
uint16_t rtc_factor_syn; /*!< RTC synchronous prescaler value: 0x0 - 0x7FFF */
uint32_t rtc_am_pm; /*!< RTC AM/PM value */
uint32_t rtc_display_format; /*!< RTC time notation */
}rtc_parameter_struct;
/* structure for RTC alarm configuration */
typedef struct
{
uint32_t rtc_alarm_mask; /*!< RTC alarm mask */
uint32_t rtc_weekday_or_date; /*!< specify RTC alarm is on date or weekday */
uint8_t rtc_alarm_day; /*!< RTC alarm date or weekday value*/
uint8_t rtc_alarm_hour; /*!< RTC alarm hour value */
uint8_t rtc_alarm_minute; /*!< RTC alarm minute value: 0x0 - 0x59(BCD format) */
uint8_t rtc_alarm_second; /*!< RTC alarm second value: 0x0 - 0x59(BCD format) */
uint32_t rtc_am_pm; /*!< RTC alarm AM/PM value */
}rtc_alarm_struct;
/* structure for RTC time-stamp configuration */
typedef struct
{
uint8_t rtc_timestamp_month; /*!< RTC time-stamp month value */
uint8_t rtc_timestamp_date; /*!< RTC time-stamp date value: 0x1 - 0x31(BCD format) */
uint8_t rtc_timestamp_day; /*!< RTC time-stamp weekday value */
uint8_t rtc_timestamp_hour; /*!< RTC time-stamp hour value */
uint8_t rtc_timestamp_minute; /*!< RTC time-stamp minute value: 0x0 - 0x59(BCD format) */
uint8_t rtc_timestamp_second; /*!< RTC time-stamp second value: 0x0 - 0x59(BCD format) */
uint32_t rtc_am_pm; /*!< RTC time-stamp AM/PM value */
}rtc_timestamp_struct;
/* structure for RTC tamper configuration */
typedef struct
{
uint32_t rtc_tamper_source; /*!< RTC tamper source */
uint32_t rtc_tamper_trigger; /*!< RTC tamper trigger */
uint32_t rtc_tamper_filter; /*!< RTC tamper consecutive samples needed during a voltage level detection */
uint32_t rtc_tamper_sample_frequency; /*!< RTC tamper sampling frequency during a voltage level detection */
ControlStatus rtc_tamper_precharge_enable; /*!< RTC tamper precharge feature during a voltage level detection */
uint32_t rtc_tamper_precharge_time; /*!< RTC tamper precharge duration if precharge feature is enabled */
ControlStatus rtc_tamper_with_timestamp; /*!< RTC tamper time-stamp feature */
}rtc_tamper_struct;
/* time register value */
#define TIME_SC(regval) (BITS(0,6) & ((uint32_t)(regval) << 0U)) /*!< write value to RTC_TIME_SC bit field */
#define GET_TIME_SC(regval) GET_BITS((regval),0,6) /*!< get value of RTC_TIME_SC bit field */
#define TIME_MN(regval) (BITS(8,14) & ((uint32_t)(regval) << 8U)) /*!< write value to RTC_TIME_MN bit field */
#define GET_TIME_MN(regval) GET_BITS((regval),8,14) /*!< get value of RTC_TIME_MN bit field */
#define TIME_HR(regval) (BITS(16,21) & ((uint32_t)(regval) << 16U)) /*!< write value to RTC_TIME_HR bit field */
#define GET_TIME_HR(regval) GET_BITS((regval),16,21) /*!< get value of RTC_TIME_HR bit field */
#define RTC_AM ((uint32_t)0x00000000U) /*!< AM format */
#define RTC_PM RTC_TIME_PM /*!< PM format */
/* date register value */
#define DATE_DAY(regval) (BITS(0,5) & ((uint32_t)(regval) << 0U)) /*!< write value to RTC_DATE_DAY bit field */
#define GET_DATE_DAY(regval) GET_BITS((regval),0,5) /*!< get value of RTC_DATE_DAY bit field */
#define DATE_MON(regval) (BITS(8,12) & ((uint32_t)(regval) << 8U)) /*!< write value to RTC_DATE_MON bit field */
#define GET_DATE_MON(regval) GET_BITS((regval),8,12) /*!< get value of RTC_DATE_MON bit field */
#define RTC_JAN ((uint8_t)0x01U) /*!< Janurary */
#define RTC_FEB ((uint8_t)0x02U) /*!< February */
#define RTC_MAR ((uint8_t)0x03U) /*!< March */
#define RTC_APR ((uint8_t)0x04U) /*!< April */
#define RTC_MAY ((uint8_t)0x05U) /*!< May */
#define RTC_JUN ((uint8_t)0x06U) /*!< June */
#define RTC_JUL ((uint8_t)0x07U) /*!< July */
#define RTC_AUG ((uint8_t)0x08U) /*!< August */
#define RTC_SEP ((uint8_t)0x09U) /*!< September */
#define RTC_OCT ((uint8_t)0x10U) /*!< October */
#define RTC_NOV ((uint8_t)0x11U) /*!< November */
#define RTC_DEC ((uint8_t)0x12U) /*!< December */
#define DATE_DOW(regval) (BITS(13,15) & ((uint32_t)(regval) << 13U)) /*!< write value to RTC_DATE_DOW bit field */
#define GET_DATE_DOW(regval) GET_BITS((regval),13,15) /*!< get value of RTC_DATE_DOW bit field */
#define RTC_MONDAY ((uint8_t)0x01U) /*!< Monday */
#define RTC_TUESDAY ((uint8_t)0x02U) /*!< Tuesday */
#define RTC_WEDSDAY ((uint8_t)0x03U) /*!< Wednesday */
#define RTC_THURSDAY ((uint8_t)0x04U) /*!< Thursday */
#define RTC_FRIDAY ((uint8_t)0x05U) /*!< Friday */
#define RTC_SATURDAY ((uint8_t)0x06U) /*!< Saturday */
#define RTC_SUNDAY ((uint8_t)0x07U) /*!< Sunday */
#define DATE_YR(regval) (BITS(16,23) & ((uint32_t)(regval) << 16U)) /*!< write value to RTC_DATE_YR bit field */
#define GET_DATE_YR(regval) GET_BITS((regval),16,23) /*!< get value of RTC_DATE_YR bit field */
/* ctl register value */
#define CTL_OS(regval) (BITS(21,22) & ((uint32_t)(regval) << 21U)) /*!< write value to RTC_CTL_OS bit field */
#define RTC_OS_DISABLE CTL_OS(0) /*!< disable output RTC_ALARM */
#define RTC_OS_ENABLE CTL_OS(1) /*!< enable alarm flag output */
#define RTC_CALIBRATION_512HZ RTC_CTL_COEN /*!< calibration output of 512Hz is enable */
#define RTC_CALIBRATION_1HZ (RTC_CTL_COEN | RTC_CTL_COS) /*!< calibration output of 1Hz is enable */
#define RTC_ALARM_HIGH RTC_OS_ENABLE /*!< enable alarm flag output with high level */
#define RTC_ALARM_LOW (RTC_OS_ENABLE | RTC_CTL_OPOL) /*!< enable alarm flag output with low level*/
#define RTC_24HOUR ((uint32_t)0x00000000U) /*!< 24-hour format */
#define RTC_12HOUR RTC_CTL_CS /*!< 12-hour format */
#define RTC_TIMESTAMP_RISING_EDGE ((uint32_t)0x00000000U) /*!< rising edge is valid event edge for time-stamp event */
#define RTC_TIMESTAMP_FALLING_EDGE RTC_CTL_TSEG /*!< falling edge is valid event edge for time-stamp event */
/* psc register value */
#define PSC_FACTOR_S(regval) (BITS(0,14) & ((uint32_t)(regval) << 0U)) /*!< write value to RTC_PSC_FACTOR_S bit field */
#define GET_PSC_FACTOR_S(regval) GET_BITS((regval),0,14) /*!< get value of RTC_PSC_FACTOR_S bit field */
#define PSC_FACTOR_A(regval) (BITS(16,22) & ((uint32_t)(regval) << 16U)) /*!< write value to RTC_PSC_FACTOR_A bit field */
#define GET_PSC_FACTOR_A(regval) GET_BITS((regval),16,22) /*!< get value of RTC_PSC_FACTOR_A bit field */
/* alrm0td register value */
#define ALRM0TD_SC(regval) (BITS(0,6) & ((uint32_t)(regval)<< 0U)) /*!< write value to RTC_ALRM0TD_SC bit field */
#define GET_ALRM0TD_SC(regval) GET_BITS((regval),0,6) /*!< get value of RTC_ALRM0TD_SC bit field */
#define ALRM0TD_MN(regval) (BITS(8,14) & ((uint32_t)(regval) << 8U)) /*!< write value to RTC_ALRM0TD_MN bit field */
#define GET_ALRM0TD_MN(regval) GET_BITS((regval),8,14) /*!< get value of RTC_ALRM0TD_MN bit field */
#define ALRM0TD_HR(regval) (BITS(16,21) & ((uint32_t)(regval) << 16U)) /*!< write value to RTC_ALRM0TD_HR bit field */
#define GET_ALRM0TD_HR(regval) GET_BITS((regval),16,21) /*!< get value of RTC_ALRM0TD_HR bit field */
#define ALRM0TD_DAY(regval) (BITS(24,29) & ((uint32_t)(regval) << 24U)) /*!< write value to RTC_ALRM0TD_DAY bit field */
#define GET_ALRM0TD_DAY(regval) GET_BITS((regval),24,29) /*!< get value of RTC_ALRM0TD_DAY bit field */
#define RTC_ALARM_NONE_MASK ((uint32_t)0x00000000U) /*!< alarm none mask */
#define RTC_ALARM_DATE_MASK RTC_ALRM0TD_MSKD /*!< alarm date mask */
#define RTC_ALARM_HOUR_MASK RTC_ALRM0TD_MSKH /*!< alarm hour mask */
#define RTC_ALARM_MINUTE_MASK RTC_ALRM0TD_MSKM /*!< alarm minute mask */
#define RTC_ALARM_SECOND_MASK RTC_ALRM0TD_MSKS /*!< alarm second mask */
#define RTC_ALARM_ALL_MASK (RTC_ALRM0TD_MSKD|RTC_ALRM0TD_MSKH|RTC_ALRM0TD_MSKM|RTC_ALRM0TD_MSKS) /*!< alarm all mask */
#define RTC_ALARM_DATE_SELECTED ((uint32_t)0x00000000U) /*!< alarm date format selected */
#define RTC_ALARM_WEEKDAY_SELECTED RTC_ALRM0TD_DOWS /*!< alarm weekday format selected */
/* wpk register value */
#define WPK_WPK(regval) (BITS(0,7) & ((uint32_t)(regval) << 0U)) /*!< write value to RTC_WPK_WPK bit field */
/* ss register value */
#define SS_SSC(regval) (BITS(0,15) & ((uint32_t)(regval) << 0U)) /*!< write value to RTC_SS_SSC bit field */
/* shiftctl register value */
#define SHIFTCTL_SFS(regval) (BITS(0,14) & ((uint32_t)(regval) << 0U)) /*!< write value to RTC_SHIFTCTL_SFS bit field */
#define RTC_SHIFT_ADD1S_RESET ((uint32_t)0x00000000U) /*!< not add 1 second */
#define RTC_SHIFT_ADD1S_SET RTC_SHIFTCTL_A1S /*!< add one second to the clock */
/* tts register value */
#define TTS_SC(regval) (BITS(0,6) & ((uint32_t)(regval) << 0U)) /*!< write value to RTC_TTS_SC bit field */
#define GET_TTS_SC(regval) GET_BITS((regval),0,6) /*!< get value of RTC_TTS_SC bit field */
#define TTS_MN(regval) (BITS(8,14) & ((uint32_t)(regval) << 8U)) /*!< write value to RTC_TTS_MN bit field */
#define GET_TTS_MN(regval) GET_BITS((regval),8,14) /*!< get value of RTC_TTS_MN bit field */
#define TTS_HR(regval) (BITS(16,21) & ((uint32_t)(regval) << 16U)) /*!< write value to RTC_TTS_HR bit field */
#define GET_TTS_HR(regval) GET_BITS((regval),16,21) /*!< get value of RTC_TTS_HR bit field */
/* dts register value */
#define DTS_DAY(regval) (BITS(0,5) & ((uint32_t)(regval) << 0U)) /*!< write value to RTC_DTS_DAY bit field */
#define GET_DTS_DAY(regval) GET_BITS((regval),0,5) /*!< get value of RTC_DTS_DAY bit field */
#define DTS_MON(regval) (BITS(8,12) & ((uint32_t)(regval) << 8U)) /*!< write value to RTC_DTS_MON bit field */
#define GET_DTS_MON(regval) GET_BITS((regval),8,12) /*!< get value of RTC_DTS_MON bit field */
#define DTS_DOW(regval) (BITS(13,15) & ((uint32_t)(regval) << 13U)) /*!< write value to RTC_DTS_DOW bit field */
#define GET_DTS_DOW(regval) GET_BITS((regval),13,15) /*!< get value of RTC_DTS_DOW bit field */
/* ssts register value */
#define SSTS_SSC(regval) (BITS(0,15) & ((uint32_t)(regval) << 0U)) /*!< write value to RTC_SSTS_SSC bit field */
/* hrfc register value */
#define HRFC_CMSK(regval) (BITS(0,8) & ((uint32_t)(regval) << 0U)) /*!< write value to RTC_HRFC_CMSK bit field */
#define RTC_CALIBRATION_WINDOW_32S ((uint32_t)0x00000000U) /*!< 2exp20 RTCCLK cycles, 32s if RTCCLK = 32768 Hz */
#define RTC_CALIBRATION_WINDOW_16S RTC_HRFC_CWND16 /*!< 2exp19 RTCCLK cycles, 16s if RTCCLK = 32768 Hz */
#define RTC_CALIBRATION_WINDOW_8S RTC_HRFC_CWND8 /*!< 2exp18 RTCCLK cycles, 8s if RTCCLK = 32768 Hz */
#define RTC_CALIBRATION_PLUS_SET RTC_HRFC_FREQI /*!< increase RTC frequency by 488.5ppm */
#define RTC_CALIBRATION_PLUS_RESET ((uint32_t)0x00000000U) /*!< no effect */
/* tamp register value */
#define TAMP_FREQ(regval) (BITS(8,10) & ((uint32_t)(regval) << 8U)) /*!< write value to RTC_TAMP_FREQ bit field */
#define RTC_FREQ_DIV32768 TAMP_FREQ(0) /*!< sample once every 32768 RTCCLK(1Hz if RTCCLK=32.768KHz) */
#define RTC_FREQ_DIV16384 TAMP_FREQ(1) /*!< sample once every 16384 RTCCLK(2Hz if RTCCLK=32.768KHz) */
#define RTC_FREQ_DIV8192 TAMP_FREQ(2) /*!< sample once every 8192 RTCCLK(4Hz if RTCCLK=32.768KHz) */
#define RTC_FREQ_DIV4096 TAMP_FREQ(3) /*!< sample once every 4096 RTCCLK(8Hz if RTCCLK=32.768KHz) */
#define RTC_FREQ_DIV2048 TAMP_FREQ(4) /*!< sample once every 2048 RTCCLK(16Hz if RTCCLK=32.768KHz) */
#define RTC_FREQ_DIV1024 TAMP_FREQ(5) /*!< sample once every 1024 RTCCLK(32Hz if RTCCLK=32.768KHz) */
#define RTC_FREQ_DIV512 TAMP_FREQ(6) /*!< sample once every 512 RTCCLK(64Hz if RTCCLK=32.768KHz) */
#define RTC_FREQ_DIV256 TAMP_FREQ(7) /*!< sample once every 256 RTCCLK(128Hz if RTCCLK=32.768KHz) */
#define TAMP_FLT(regval) (BITS(11,12) & ((uint32_t)(regval) << 11U)) /*!< write value to RTC_TAMP_FLT bit field */
#define RTC_FLT_EDGE TAMP_FLT(0) /*!< detecting tamper event using edge mode. precharge duration is disabled automatically */
#define RTC_FLT_2S TAMP_FLT(1) /*!< detecting tamper event using level mode.2 consecutive valid level samples will make a effective tamper event */
#define RTC_FLT_4S TAMP_FLT(2) /*!< detecting tamper event using level mode.4 consecutive valid level samples will make an effective tamper event */
#define RTC_FLT_8S TAMP_FLT(3) /*!< detecting tamper event using level mode.8 consecutive valid level samples will make a effective tamper event */
#define TAMP_PRCH(regval) (BITS(13,14) & ((uint32_t)(regval) << 13U)) /*!< write value to RTC_TAMP_PRCH bit field */
#define RTC_PRCH_1C TAMP_PRCH(0) /*!< 1 RTC clock prechagre time before each sampling */
#define RTC_PRCH_2C TAMP_PRCH(1) /*!< 2 RTC clock prechagre time before each sampling */
#define RTC_PRCH_4C TAMP_PRCH(2) /*!< 4 RTC clock prechagre time before each sampling */
#define RTC_PRCH_8C TAMP_PRCH(3) /*!< 8 RTC clock prechagre time before each sampling */
#define RTC_TAMPER0 RTC_TAMP_TP0EN /*!< tamper 0 detection enable */
#define RTC_TAMPER1 RTC_TAMP_TP1EN /*!< tamper 1 detection enable */
#define RTC_TAMPER_TRIGGER_EDGE_RISING ((uint32_t)0x00000000U) /*!< tamper detection is in rising edge mode */
#define RTC_TAMPER_TRIGGER_EDGE_FALLING ((uint32_t)0x00000001U) /*!< tamper detection is in falling edge mode */
#define RTC_TAMPER_TRIGGER_LEVEL_LOW ((uint32_t)0x00000000U) /*!< tamper detection is in low level mode */
#define RTC_TAMPER_TRIGGER_LEVEL_HIGH ((uint32_t)0x00000001U) /*!< tamper detection is in high level mode */
#define RTC_TAMPER_TRIGGER_POS ((uint32_t)0x00000001U) /* shift position of trigger relative to source */
#define RTC_ALARM_OUTPUT_OD ((uint32_t)0x00000000U) /*!< RTC alarm output open-drain mode */
#define RTC_ALARM_OUTPUT_PP RTC_TAMP_PC13VAL /*!< RTC alarm output push-pull mode */
/* alrm0ss register value */
#define ALRM0SS_SSC(regval) (BITS(0,14) & ((uint32_t)(regval)<< 0U)) /*!< write value to RTC_ALRM0SS_SSC bit field */
#define ALRM0SS_MASKSSC(regval) (BITS(24,27) & ((uint32_t)(regval) << 24U)) /*!< write value to RTC_ALRM0SS_MASKSSC bit field */
#define RTC_MASKSSC_0_14 ALRM0SS_MASKSSC(0) /*!< mask alarm subsecond configuration */
#define RTC_MASKSSC_1_14 ALRM0SS_MASKSSC(1) /*!< mask RTC_ALRM0SS_SSC[14:1], and RTC_ALRM0SS_SSC[0] is to be compared */
#define RTC_MASKSSC_2_14 ALRM0SS_MASKSSC(2) /*!< mask RTC_ALRM0SS_SSC[14:2], and RTC_ALRM0SS_SSC[1:0] is to be compared */
#define RTC_MASKSSC_3_14 ALRM0SS_MASKSSC(3) /*!< mask RTC_ALRM0SS_SSC[14:3], and RTC_ALRM0SS_SSC[2:0] is to be compared */
#define RTC_MASKSSC_4_14 ALRM0SS_MASKSSC(4) /*!< mask RTC_ALRM0SS_SSC[14:4], and RTC_ALRM0SS_SSC[3:0] is to be compared */
#define RTC_MASKSSC_5_14 ALRM0SS_MASKSSC(5) /*!< mask RTC_ALRM0SS_SSC[14:5], and RTC_ALRM0SS_SSC[4:0] is to be compared */
#define RTC_MASKSSC_6_14 ALRM0SS_MASKSSC(6) /*!< mask RTC_ALRM0SS_SSC[14:6], and RTC_ALRM0SS_SSC[5:0] is to be compared */
#define RTC_MASKSSC_7_14 ALRM0SS_MASKSSC(7) /*!< mask RTC_ALRM0SS_SSC[14:7], and RTC_ALRM0SS_SSC[6:0] is to be compared */
#define RTC_MASKSSC_8_14 ALRM0SS_MASKSSC(8) /*!< mask RTC_ALRM0SS_SSC[14:8], and RTC_ALRM0SS_SSC[7:0] is to be compared */
#define RTC_MASKSSC_9_14 ALRM0SS_MASKSSC(9) /*!< mask RTC_ALRM0SS_SSC[14:9], and RTC_ALRM0SS_SSC[8:0] is to be compared */
#define RTC_MASKSSC_10_14 ALRM0SS_MASKSSC(10) /*!< mask RTC_ALRM0SS_SSC[14:10], and RTC_ALRM0SS_SSC[9:0] is to be compared */
#define RTC_MASKSSC_11_14 ALRM0SS_MASKSSC(11) /*!< mask RTC_ALRM0SS_SSC[14:11], and RTC_ALRM0SS_SSC[10:0] is to be compared */
#define RTC_MASKSSC_12_14 ALRM0SS_MASKSSC(12) /*!< mask RTC_ALRM0SS_SSC[14:12], and RTC_ALRM0SS_SSC[11:0] is to be compared */
#define RTC_MASKSSC_13_14 ALRM0SS_MASKSSC(13) /*!< mask RTC_ALRM0SS_SSC[14:13], and RTC_ALRM0SS_SSC[12:0] is to be compared */
#define RTC_MASKSSC_14 ALRM0SS_MASKSSC(14) /*!< mask RTC_ALRM0SS_SSC[14], and RTC_ALRM0SS_SSC[13:0] is to be compared */
#define RTC_MASKSSC_NONE ALRM0SS_MASKSSC(15) /*!< mask none, and RTC_ALRM0SS_SSC[14:0] is to be compared */
/* RTC interrupt source */
#define RTC_INT_TIMESTAMP RTC_CTL_TSIE /*!< time-stamp interrupt enable */
#define RTC_INT_ALARM RTC_CTL_ALRM0IE /*!< RTC alarm interrupt enable */
#define RTC_INT_TAMP RTC_TAMP_TPIE /*!< tamper detection interrupt enable */
/* write protect key */
#define RTC_UNLOCK_KEY1 ((uint8_t)0xCAU) /*!< RTC unlock key1 */
#define RTC_UNLOCK_KEY2 ((uint8_t)0x53U) /*!< RTC unlock key2 */
#define RTC_LOCK_KEY ((uint8_t)0xFFU) /*!< RTC lock key */
/* registers reset value */
#define RTC_REGISTER_RESET ((uint32_t)0x00000000U) /*!< RTC common register reset value */
#define RTC_DATE_RESET ((uint32_t)0x00002101U) /*!< RTC_DATE register reset value */
#define RTC_STAT_RESET ((uint32_t)0x00000007U) /*!< RTC_STAT register reset value */
#define RTC_PSC_RESET ((uint32_t)0x007F00FFU) /*!< RTC_PSC register reset value */
/* RTC timeout value */
#define RTC_INITM_TIMEOUT ((uint32_t)0x00004000U) /*!< initialization state flag timeout */
#define RTC_RSYNF_TIMEOUT ((uint32_t)0x00008000U) /*!< register synchronization flag timeout */
#define RTC_HRFC_TIMEOUT ((uint32_t)0x00001000U) /*!< recalibration pending flag timeout */
#define RTC_SHIFTCTL_TIMEOUT ((uint32_t)0x00001000U) /*!< shift function operation pending flag timeout */
#define RTC_ALRM0WF_TIMEOUT ((uint32_t)0x00008000U) /*!< alarm configuration can be write flag timeout */
/* RTC flag */
#define RTC_FLAG_RECALIBRATION RTC_STAT_SCPF /*!< recalibration pending flag */
#define RTC_FLAG_TAMP1 RTC_STAT_TP1F /*!< tamper 1 event flag */
#define RTC_FLAG_TAMP0 RTC_STAT_TP0F /*!< tamper 0 event flag */
#define RTC_FLAG_TIMESTAMP_OVERFLOW RTC_STAT_TSOVRF /*!< time-stamp overflow event flag */
#define RTC_FLAG_TIMESTAMP RTC_STAT_TSF /*!< time-stamp event flag */
#define RTC_FLAG_ALARM0 RTC_STAT_ALRM0F /*!< alarm event flag */
#define RTC_FLAG_INIT RTC_STAT_INITF /*!< init mode event flag */
#define RTC_FLAG_RSYN RTC_STAT_RSYNF /*!< registers synchronized flag */
#define RTC_FLAG_YCM RTC_STAT_YCM /*!< year parameter configured event flag */
#define RTC_FLAG_SHIFT RTC_STAT_SOPF /*!< shift operation pending flag */
#define RTC_FLAG_ALARM0_WRITTEN RTC_STAT_ALRM0WF /*!< alarm written available flag */
/* function declarations */
/* reset most of the RTC registers */
ErrStatus rtc_deinit(void);
/* initialize RTC registers */
ErrStatus rtc_init(rtc_parameter_struct* rtc_initpara_struct);
/* enter RTC init mode */
ErrStatus rtc_init_mode_enter(void);
/* exit RTC init mode */
void rtc_init_mode_exit(void);
/* wait until RTC_TIME and RTC_DATE registers are synchronized with APB clock, and the shadow registers are updated */
ErrStatus rtc_register_sync_wait(void);
/* get current time and date */
void rtc_current_time_get(rtc_parameter_struct* rtc_initpara_struct);
/* get current subsecond value */
uint32_t rtc_subsecond_get(void);
/* configure RTC alarm */
void rtc_alarm_config(rtc_alarm_struct* rtc_alarm_time);
/* configure subsecond of RTC alarm */
void rtc_alarm_subsecond_config(uint32_t mask_subsecond, uint32_t subsecond);
/* get RTC alarm */
void rtc_alarm_get(rtc_alarm_struct* rtc_alarm_time);
/* get RTC alarm subsecond */
uint32_t rtc_alarm_subsecond_get(void);
/* enable RTC alarm */
void rtc_alarm_enable(void);
/* disable RTC alarm */
ErrStatus rtc_alarm_disable(void);
/* enable RTC time-stamp */
void rtc_timestamp_enable(uint32_t edge);
/* disable RTC time-stamp */
void rtc_timestamp_disable(void);
/* get RTC timestamp time and date */
void rtc_timestamp_get(rtc_timestamp_struct* rtc_timestamp);
/* get RTC time-stamp subsecond */
uint32_t rtc_timestamp_subsecond_get(void);
/* enable RTC tamper */
void rtc_tamper_enable(rtc_tamper_struct* rtc_tamper);
/* disable RTC tamper */
void rtc_tamper_disable(uint32_t source);
/* enable specified RTC interrupt */
void rtc_interrupt_enable(uint32_t interrupt);
/* disble specified RTC interrupt */
void rtc_interrupt_disable(uint32_t interrupt);
/* check specified flag */
FlagStatus rtc_flag_get(uint32_t flag);
/* clear specified flag */
void rtc_flag_clear(uint32_t flag);
/* configure RTC alternate output source */
void rtc_alter_output_config(uint32_t source, uint32_t mode);
/* configure RTC calibration register */
ErrStatus rtc_calibration_config(uint32_t window, uint32_t plus, uint32_t minus);
/* ajust the daylight saving time by adding or substracting one hour from the current time */
void rtc_hour_adjust(uint32_t operation);
/* ajust RTC second or subsecond value of current time */
ErrStatus rtc_second_adjust(uint32_t add, uint32_t minus);
/* enable RTC bypass shadow registers function */
void rtc_bypass_shadow_enable(void);
/* disable RTC bypass shadow registers function */
void rtc_bypass_shadow_disable(void);
/* enable RTC reference clock detection function */
ErrStatus rtc_refclock_detection_enable(void);
/* disable RTC reference clock detection function */
ErrStatus rtc_refclock_detection_disable(void);
#endif /* GD32E23X_RTC_H */

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/*!
\file gd32e23x_spi.h
\brief definitions for the SPI
\version 2024-02-22, V2.1.0, firmware for GD32E23x
*/
/*
Copyright (c) 2024, GigaDevice Semiconductor Inc.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.
*/
#ifndef GD32E23X_SPI_H
#define GD32E23X_SPI_H
#include "gd32e23x.h"
/* SPIx(x=0,1) definitions */
#define SPI0 (SPI_BASE + 0x0000F800U)
#define SPI1 SPI_BASE
/* registers definitions */
#define SPI_CTL0(spix) REG32((spix) + 0x00000000U) /*!< SPI control register 0 */
#define SPI_CTL1(spix) REG32((spix) + 0x00000004U) /*!< SPI control register 1*/
#define SPI_STAT(spix) REG32((spix) + 0x00000008U) /*!< SPI status register */
#define SPI_DATA(spix) REG32((spix) + 0x0000000CU) /*!< SPI data register */
#define SPI_CRCPOLY(spix) REG32((spix) + 0x00000010U) /*!< SPI CRC polynomial register */
#define SPI_RCRC(spix) REG32((spix) + 0x00000014U) /*!< SPI receive CRC register */
#define SPI_TCRC(spix) REG32((spix) + 0x00000018U) /*!< SPI transmit CRC register */
#define SPI_I2SCTL(spix) REG32((spix) + 0x0000001CU) /*!< SPI I2S control register */
#define SPI_I2SPSC(spix) REG32((spix) + 0x00000020U) /*!< SPI I2S clock prescaler register */
#define SPI_QCTL(spix) REG32((spix) + 0x00000080U) /*!< SPI quad mode control register(only available in SPI1) */
/* bits definitions */
/* SPI_CTL0 */
#define SPI_CTL0_CKPH BIT(0) /*!< clock phase selection */
#define SPI_CTL0_CKPL BIT(1) /*!< clock polarity selection */
#define SPI_CTL0_MSTMOD BIT(2) /*!< master mode enable */
#define SPI_CTL0_PSC BITS(3,5) /*!< master clock prescaler selection */
#define SPI_CTL0_SPIEN BIT(6) /*!< SPI enable*/
#define SPI_CTL0_LF BIT(7) /*!< LSB first mode */
#define SPI_CTL0_SWNSS BIT(8) /*!< NSS pin selection in NSS software mode */
#define SPI_CTL0_SWNSSEN BIT(9) /*!< NSS software mode selection */
#define SPI_CTL0_RO BIT(10) /*!< receive only */
/* only available in SPI0*/
#define SPI_CTL0_FF16 BIT(11) /*!< data frame size */
/* only available in SPI1*/
#define SPI_CTL0_CRCL BIT(11) /*!< CRC length */
#define SPI_CTL0_CRCNT BIT(12) /*!< CRC next transfer */
#define SPI_CTL0_CRCEN BIT(13) /*!< CRC calculation enable */
#define SPI_CTL0_BDOEN BIT(14) /*!< bidirectional transmit output enable*/
#define SPI_CTL0_BDEN BIT(15) /*!< bidirectional enable */
/* SPI_CTL1 */
#define SPI_CTL1_DMAREN BIT(0) /*!< receive buffer DMA enable */
#define SPI_CTL1_DMATEN BIT(1) /*!< transmit buffer DMA enable */
#define SPI_CTL1_NSSDRV BIT(2) /*!< drive NSS output */
#define SPI_CTL1_NSSP BIT(3) /*!< SPI NSS pulse mode enable */
#define SPI_CTL1_TMOD BIT(4) /*!< SPI TI mode enable */
#define SPI_CTL1_ERRIE BIT(5) /*!< errors interrupt enable */
#define SPI_CTL1_RBNEIE BIT(6) /*!< receive buffer not empty interrupt enable */
#define SPI_CTL1_TBEIE BIT(7) /*!< transmit buffer empty interrupt enable */
/* only available in SPI1 */
#define SPI_CTL1_DZ BITS(8,11) /*!< data size */
#define SPI_CTL1_BYTEN BIT(12) /*!< byte access to FIFO enable */
#define SPI_CTL1_RXDMA_ODD BIT(13) /*!< odd bytes in RX DMA channel */
#define SPI_CTL1_TXDMA_ODD BIT(14) /*!< odd bytes in TX DMA channel */
/* SPI_STAT */
#define SPI_STAT_RBNE BIT(0) /*!< receive buffer not empty */
#define SPI_STAT_TBE BIT(1) /*!< transmit buffer empty */
#define SPI_STAT_I2SCH BIT(2) /*!< I2S channel side */
#define SPI_STAT_TXURERR BIT(3) /*!< I2S transmission underrun error bit */
#define SPI_STAT_CRCERR BIT(4) /*!< SPI CRC error bit */
#define SPI_STAT_CONFERR BIT(5) /*!< SPI configuration error bit */
#define SPI_STAT_RXORERR BIT(6) /*!< SPI reception overrun error bit */
#define SPI_STAT_TRANS BIT(7) /*!< transmitting on-going bit */
#define SPI_STAT_FERR BIT(8) /*!< format error bit */
/* only available in SPI1 */
#define SPI_STAT_RXLVL BITS(9,10) /*!< RXFIFO level */
#define SPI_STAT_TXLVL BITS(11,12) /*!< TXFIFO level */
/* SPI_DATA */
#define SPI_DATA_DATA BITS(0,15) /*!< data transfer register */
/* SPI_CRCPOLY */
#define SPI_CRCPOLY_CRCPOLY BITS(0,15) /*!< CRC polynomial value */
/* SPI_RCRC */
#define SPI_RCRC_RCRC BITS(0,15) /*!< RX CRC value */
/* SPI_TCRC */
#define SPI_TCRC_TCRC BITS(0,15) /*!< TX CRC value */
/* SPI_I2SCTL */
#define SPI_I2SCTL_CHLEN BIT(0) /*!< channel length */
#define SPI_I2SCTL_DTLEN BITS(1,2) /*!< data length */
#define SPI_I2SCTL_CKPL BIT(3) /*!< idle state clock polarity */
#define SPI_I2SCTL_I2SSTD BITS(4,5) /*!< I2S standard selection */
#define SPI_I2SCTL_PCMSMOD BIT(7) /*!< PCM frame synchronization mode */
#define SPI_I2SCTL_I2SOPMOD BITS(8,9) /*!< I2S operation mode */
#define SPI_I2SCTL_I2SEN BIT(10) /*!< I2S enable */
#define SPI_I2SCTL_I2SSEL BIT(11) /*!< I2S mode selection */
/* SPI_I2SPSC */
#define SPI_I2SPSC_DIV BITS(0,7) /*!< dividing factor for the prescaler */
#define SPI_I2SPSC_OF BIT(8) /*!< odd factor for the prescaler */
#define SPI_I2SPSC_MCKOEN BIT(9) /*!< I2S MCK output enable */
/* SPI_QCTL(only available in SPI1) */
#define SPI_QCTL_QMOD BIT(0) /*!< quad-SPI mode enable */
#define SPI_QCTL_QRD BIT(1) /*!< quad-SPI mode read select */
#define SPI_QCTL_IO23_DRV BIT(2) /*!< drive SPI_IO2 and SPI_IO3 enable */
/* constants definitions */
/* SPI and I2S parameter struct definitions */
typedef struct {
uint32_t device_mode; /*!< SPI master or slave */
uint32_t trans_mode; /*!< SPI transfer type */
uint32_t frame_size; /*!< SPI frame size */
uint32_t nss; /*!< SPI NSS control by handware or software */
uint32_t endian; /*!< SPI big endian or little endian */
uint32_t clock_polarity_phase; /*!< SPI clock phase and polarity */
uint32_t prescale; /*!< SPI prescaler factor */
} spi_parameter_struct;
/* SPI mode definitions */
#define SPI_MASTER (SPI_CTL0_MSTMOD | SPI_CTL0_SWNSS) /*!< SPI as master */
#define SPI_SLAVE ((uint32_t)0x00000000U) /*!< SPI as slave */
/* SPI bidirectional transfer direction */
#define SPI_BIDIRECTIONAL_TRANSMIT SPI_CTL0_BDOEN /*!< SPI work in transmit-only mode */
#define SPI_BIDIRECTIONAL_RECEIVE (~SPI_CTL0_BDOEN) /*!< SPI work in receive-only mode */
/* SPI transmit type */
#define SPI_TRANSMODE_FULLDUPLEX ((uint32_t)0x00000000U) /*!< SPI receive and send data at fullduplex communication */
#define SPI_TRANSMODE_RECEIVEONLY SPI_CTL0_RO /*!< SPI only receive data */
#define SPI_TRANSMODE_BDRECEIVE SPI_CTL0_BDEN /*!< bidirectional receive data */
#define SPI_TRANSMODE_BDTRANSMIT (SPI_CTL0_BDEN | SPI_CTL0_BDOEN) /*!< bidirectional transmit data*/
/* SPI NSS control mode */
#define SPI_NSS_SOFT SPI_CTL0_SWNSSEN /*!< SPI NSS control by sofrware */
#define SPI_NSS_HARD ((uint32_t)0x00000000U) /*!< SPI NSS control by hardware */
/* SPI transmit way */
#define SPI_ENDIAN_MSB ((uint32_t)0x00000000U) /*!< SPI transmit way is big endian: transmit MSB first */
#define SPI_ENDIAN_LSB SPI_CTL0_LF /*!< SPI transmit way is little endian: transmit LSB first */
/* SPI clock phase and polarity */
#define SPI_CK_PL_LOW_PH_1EDGE ((uint32_t)0x00000000U) /*!< SPI clock polarity is low level and phase is first edge */
#define SPI_CK_PL_HIGH_PH_1EDGE SPI_CTL0_CKPL /*!< SPI clock polarity is high level and phase is first edge */
#define SPI_CK_PL_LOW_PH_2EDGE SPI_CTL0_CKPH /*!< SPI clock polarity is low level and phase is second edge */
#define SPI_CK_PL_HIGH_PH_2EDGE (SPI_CTL0_CKPL | SPI_CTL0_CKPH) /*!< SPI clock polarity is high level and phase is second edge */
/* SPI clock prescaler factor */
#define CTL0_PSC(regval) (BITS(3,5) & ((uint32_t)(regval) << 3))
#define SPI_PSC_2 CTL0_PSC(0) /*!< SPI clock prescaler factor is 2 */
#define SPI_PSC_4 CTL0_PSC(1) /*!< SPI clock prescaler factor is 4 */
#define SPI_PSC_8 CTL0_PSC(2) /*!< SPI clock prescaler factor is 8 */
#define SPI_PSC_16 CTL0_PSC(3) /*!< SPI clock prescaler factor is 16 */
#define SPI_PSC_32 CTL0_PSC(4) /*!< SPI clock prescaler factor is 32 */
#define SPI_PSC_64 CTL0_PSC(5) /*!< SPI clock prescaler factor is 64 */
#define SPI_PSC_128 CTL0_PSC(6) /*!< SPI clock prescaler factor is 128 */
#define SPI_PSC_256 CTL0_PSC(7) /*!< SPI clock prescaler factor is 256 */
/* SPIx frame size */
#define CTL1_FRAMESIZE(regval) (BITS(8,11) & ((uint32_t)(regval) << 8))
#define SPI_FRAMESIZE_4BIT CTL1_FRAMESIZE(3) /*!< SPI frame size is 4 bits */
#define SPI_FRAMESIZE_5BIT CTL1_FRAMESIZE(4) /*!< SPI frame size is 5 bits */
#define SPI_FRAMESIZE_6BIT CTL1_FRAMESIZE(5) /*!< SPI frame size is 6 bits */
#define SPI_FRAMESIZE_7BIT CTL1_FRAMESIZE(6) /*!< SPI frame size is 7 bits */
#define SPI_FRAMESIZE_8BIT CTL1_FRAMESIZE(7) /*!< SPI frame size is 8 bits */
#define SPI_FRAMESIZE_9BIT CTL1_FRAMESIZE(8) /*!< SPI frame size is 9 bits */
#define SPI_FRAMESIZE_10BIT CTL1_FRAMESIZE(9) /*!< SPI frame size is 10 bits */
#define SPI_FRAMESIZE_11BIT CTL1_FRAMESIZE(10) /*!< SPI frame size is 11 bits */
#define SPI_FRAMESIZE_12BIT CTL1_FRAMESIZE(11) /*!< SPI frame size is 12 bits */
#define SPI_FRAMESIZE_13BIT CTL1_FRAMESIZE(12) /*!< SPI frame size is 13 bits */
#define SPI_FRAMESIZE_14BIT CTL1_FRAMESIZE(13) /*!< SPI frame size is 14 bits */
#define SPI_FRAMESIZE_15BIT CTL1_FRAMESIZE(14) /*!< SPI frame size is 15 bits */
#define SPI_FRAMESIZE_16BIT CTL1_FRAMESIZE(15) /*!< SPI frame size is 16 bits */
/* SPIx CRC length(x=1) */
#define SPI_CRC_8BIT ((uint32_t)0x00000000U) /*!< SPI CRC length is 8 bits */
#define SPI_CRC_16BIT SPI_CTL0_CRCL /*!< SPI CRC length is 16 bits */
/* SPIx byte access enable(x=1) */
#define SPI_HALFWORD_ACCESS ((uint32_t)0x00000000U) /*!< SPI half-word access to FIFO */
#define SPI_BYTE_ACCESS SPI_CTL1_BYTEN /*!< SPI byte access to FIFO */
/* SPIx odd bytes in TX DMA channel(x=1) */
#define SPI_TXDMA_EVEN ((uint32_t)0x00000000U) /*!< SPI number of byte in TX DMA channel is even */
#define SPI_TXDMA_ODD SPI_CTL1_TXDMA_ODD /*!< SPI number of byte in TX DMA channel is odd */
/* SPIx odd bytes in RX DMA channel(x=1) */
#define SPI_RXDMA_EVEN ((uint32_t)0x00000000U) /*!< SPI number of byte in RX DMA channel is even */
#define SPI_RXDMA_ODD SPI_CTL1_RXDMA_ODD /*!< SPI number of byte in RX DMA channel is odd */
/* SPIx TXFIFO level(x=1) */
#define CTL1_TXLVL(regval) (BITS(11,12) & ((uint32_t)(regval) << 11))
#define SPI_TXLVL_EMPTY CTL1_TXLVL(0) /*!< SPI TXFIFO is empty */
#define SPI_TXLVL_QUARTER_FULL CTL1_TXLVL(1) /*!< SPI TXFIFO is a quarter of full */
#define SPI_TXLVL_HAlF_FULL CTL1_TXLVL(2) /*!< SPI TXFIFO is a half of full */
#define SPI_TXLVL_FULL CTL1_TXLVL(3) /*!< SPI TXFIFO is full */
/* SPIx RXFIFO level(x=1) */
#define CTL1_RXLVL(regval) (BITS(9,10) & ((uint32_t)(regval) << 9))
#define SPI_RXLVL_EMPTY CTL1_RXLVL(0) /*!< SPI RXFIFO is empty */
#define SPI_RXLVL_QUARTER_FULL CTL1_RXLVL(1) /*!< SPI RXFIFO is a quarter of full */
#define SPI_RXLVL_HAlF_FULL CTL1_RXLVL(2) /*!< SPI RXFIFO is a half of full */
#define SPI_RXLVL_FULL CTL1_RXLVL(3) /*!< SPI RXFIFO is full */
/* I2S audio sample rate */
#define I2S_AUDIOSAMPLE_8K ((uint32_t)8000U) /*!< I2S audio sample rate is 8KHz */
#define I2S_AUDIOSAMPLE_11K ((uint32_t)11025U) /*!< I2S audio sample rate is 11KHz */
#define I2S_AUDIOSAMPLE_16K ((uint32_t)16000U) /*!< I2S audio sample rate is 16KHz */
#define I2S_AUDIOSAMPLE_22K ((uint32_t)22050U) /*!< I2S audio sample rate is 22KHz */
#define I2S_AUDIOSAMPLE_32K ((uint32_t)32000U) /*!< I2S audio sample rate is 32KHz */
#define I2S_AUDIOSAMPLE_44K ((uint32_t)44100U) /*!< I2S audio sample rate is 44KHz */
#define I2S_AUDIOSAMPLE_48K ((uint32_t)48000U) /*!< I2S audio sample rate is 48KHz */
#define I2S_AUDIOSAMPLE_96K ((uint32_t)96000U) /*!< I2S audio sample rate is 96KHz */
#define I2S_AUDIOSAMPLE_192K ((uint32_t)192000U) /*!< I2S audio sample rate is 192KHz */
/* I2S frame format */
#define I2SCTL_DTLEN(regval) (BITS(1,2) & ((uint32_t)(regval) << 1))
#define I2S_FRAMEFORMAT_DT16B_CH16B I2SCTL_DTLEN(0) /*!< I2S data length is 16 bit and channel length is 16 bit */
#define I2S_FRAMEFORMAT_DT16B_CH32B (I2SCTL_DTLEN(0) | SPI_I2SCTL_CHLEN) /*!< I2S data length is 16 bit and channel length is 32 bit */
#define I2S_FRAMEFORMAT_DT24B_CH32B (I2SCTL_DTLEN(1) | SPI_I2SCTL_CHLEN) /*!< I2S data length is 24 bit and channel length is 32 bit */
#define I2S_FRAMEFORMAT_DT32B_CH32B (I2SCTL_DTLEN(2) | SPI_I2SCTL_CHLEN) /*!< I2S data length is 32 bit and channel length is 32 bit */
/* I2S master clock output */
#define I2S_MCKOUT_DISABLE ((uint32_t)0x00000000U) /*!< I2S master clock output disable */
#define I2S_MCKOUT_ENABLE SPI_I2SPSC_MCKOEN /*!< I2S master clock output enable */
/* I2S operation mode */
#define I2SCTL_I2SOPMOD(regval) (BITS(8,9) & ((uint32_t)(regval) << 8))
#define I2S_MODE_SLAVETX I2SCTL_I2SOPMOD(0) /*!< I2S slave transmit mode */
#define I2S_MODE_SLAVERX I2SCTL_I2SOPMOD(1) /*!< I2S slave receive mode */
#define I2S_MODE_MASTERTX I2SCTL_I2SOPMOD(2) /*!< I2S master transmit mode */
#define I2S_MODE_MASTERRX I2SCTL_I2SOPMOD(3) /*!< I2S master receive mode */
/* I2S standard */
#define I2SCTL_I2SSTD(regval) (BITS(4,5) & ((uint32_t)(regval) << 4))
#define I2S_STD_PHILLIPS I2SCTL_I2SSTD(0) /*!< I2S phillips standard */
#define I2S_STD_MSB I2SCTL_I2SSTD(1) /*!< I2S MSB standard */
#define I2S_STD_LSB I2SCTL_I2SSTD(2) /*!< I2S LSB standard */
#define I2S_STD_PCMSHORT I2SCTL_I2SSTD(3) /*!< I2S PCM short standard */
#define I2S_STD_PCMLONG (I2SCTL_I2SSTD(3) | SPI_I2SCTL_PCMSMOD) /*!< I2S PCM long standard */
/* I2S clock polarity */
#define I2S_CKPL_LOW ((uint32_t)0x00000000U) /*!< I2S clock polarity low level */
#define I2S_CKPL_HIGH SPI_I2SCTL_CKPL /*!< I2S clock polarity high level */
/* SPI DMA constants definitions */
#define SPI_DMA_TRANSMIT ((uint8_t)0x00U) /*!< SPI transmit data use DMA */
#define SPI_DMA_RECEIVE ((uint8_t)0x01U) /*!< SPI receive data use DMA */
/* SPI CRC constants definitions */
#define SPI_CRC_TX ((uint8_t)0x00U) /*!< SPI transmit CRC value */
#define SPI_CRC_RX ((uint8_t)0x01U) /*!< SPI receive CRC value */
/* SPI/I2S interrupt enable/disable constants definitions */
#define SPI_I2S_INT_TBE SPI_CTL1_TBEIE /*!< transmit buffer empty interrupt */
#define SPI_I2S_INT_RBNE SPI_CTL1_RBNEIE /*!< receive buffer not empty interrupt */
#define SPI_I2S_INT_ERR SPI_CTL1_ERRIE /*!< error interrupt */
/* SPI/I2S interrupt flag constants definitions */
#define SPI_I2S_INT_FLAG_TBE ((uint8_t)0x00U) /*!< transmit buffer empty interrupt flag */
#define SPI_I2S_INT_FLAG_RBNE ((uint8_t)0x01U) /*!< receive buffer not empty interrupt flag */
#define SPI_I2S_INT_FLAG_RXORERR ((uint8_t)0x02U) /*!< overrun interrupt flag */
#define SPI_INT_FLAG_CONFERR ((uint8_t)0x03U) /*!< config error interrupt flag */
#define SPI_INT_FLAG_CRCERR ((uint8_t)0x04U) /*!< CRC error interrupt flag */
#define I2S_INT_FLAG_TXURERR ((uint8_t)0x05U) /*!< underrun error interrupt flag */
#define SPI_I2S_INT_FLAG_FERR ((uint8_t)0x06U) /*!< format error interrupt flag */
/* SPI/I2S flag definitions */
#define SPI_FLAG_RBNE SPI_STAT_RBNE /*!< receive buffer not empty flag */
#define SPI_FLAG_TBE SPI_STAT_TBE /*!< transmit buffer empty flag */
#define SPI_FLAG_CRCERR SPI_STAT_CRCERR /*!< CRC error flag */
#define SPI_FLAG_CONFERR SPI_STAT_CONFERR /*!< mode config error flag */
#define SPI_FLAG_RXORERR SPI_STAT_RXORERR /*!< receive overrun error flag */
#define SPI_FLAG_TRANS SPI_STAT_TRANS /*!< transmit on-going flag */
#define SPI_FLAG_FERR SPI_STAT_FERR /*!< format error flag */
#define I2S_FLAG_RBNE SPI_STAT_RBNE /*!< receive buffer not empty flag */
#define I2S_FLAG_TBE SPI_STAT_TBE /*!< transmit buffer empty flag */
#define I2S_FLAG_CH SPI_STAT_I2SCH /*!< channel side flag */
#define I2S_FLAG_TXURERR SPI_STAT_TXURERR /*!< underrun error flag */
#define I2S_FLAG_RXORERR SPI_STAT_RXORERR /*!< overrun error flag */
#define I2S_FLAG_TRANS SPI_STAT_TRANS /*!< transmit on-going flag */
#define I2S_FLAG_FERR SPI_STAT_FERR /*!< format error flag */
/* function declarations */
/* SPI deinitialization and initialization functions */
/* reset SPI and I2S */
void spi_i2s_deinit(uint32_t spi_periph);
/* initialize the parameters of SPI structure with the default values */
void spi_struct_para_init(spi_parameter_struct *spi_struct);
/* initialize SPI parameters */
ErrStatus spi_init(uint32_t spi_periph, spi_parameter_struct *spi_struct);
/* enable SPI */
void spi_enable(uint32_t spi_periph);
/* disable SPI */
void spi_disable(uint32_t spi_periph);
/* I2S initialization functions */
/* initialize I2S parameters */
void i2s_init(uint32_t spi_periph, uint32_t mode, uint32_t standard, uint32_t ckpl);
/* configure I2S prescaler */
void i2s_psc_config(uint32_t spi_periph, uint32_t audiosample, uint32_t frameformat, uint32_t mckout);
/* enable I2S */
void i2s_enable(uint32_t spi_periph);
/* disable I2S */
void i2s_disable(uint32_t spi_periph);
/* NSS functions */
/* enable SPI NSS output */
void spi_nss_output_enable(uint32_t spi_periph);
/* disable SPI NSS output */
void spi_nss_output_disable(uint32_t spi_periph);
/* SPI NSS pin high level in software mode */
void spi_nss_internal_high(uint32_t spi_periph);
/* SPI NSS pin low level in software mode */
void spi_nss_internal_low(uint32_t spi_periph);
/* DMA functions */
/* enable SPI DMA */
void spi_dma_enable(uint32_t spi_periph, uint8_t dma);
/* disable SPI DMA */
void spi_dma_disable(uint32_t spi_periph, uint8_t dma);
/* configure SPI total number of data to be transmitted by DMA is odd or not */
void spi_transmit_odd_config(uint32_t spi_periph, uint16_t odd);
/* configure SPI total number of data to be received by DMA is odd or not */
void spi_receive_odd_config(uint32_t spi_periph, uint16_t odd);
/* communication functions */
/* configure SPI data frame format */
ErrStatus spi_i2s_data_frame_format_config(uint32_t spi_periph, uint16_t frame_format);
/* configure SPI access size to FIFO(8-bit or 16-bit) */
void spi_fifo_access_size_config(uint32_t spi_periph, uint16_t fifo_access_size);
/* configure SPI bidirectional transfer direction */
void spi_bidirectional_transfer_config(uint32_t spi_periph, uint32_t transfer_direction);
/* SPI transmit data */
void spi_i2s_data_transmit(uint32_t spi_periph, uint16_t data);
/* SPI receive data */
uint16_t spi_i2s_data_receive(uint32_t spi_periph);
/* clear TI Mode Format Error flag status */
void spi_i2s_format_error_clear(uint32_t spi_periph, uint32_t flag);
/* SPI CRC functions */
/* set SPI CRC polynomial */
void spi_crc_polynomial_set(uint32_t spi_periph, uint16_t crc_poly);
/* get SPI CRC polynomial */
uint16_t spi_crc_polynomial_get(uint32_t spi_periph);
/* set CRC length */
void spi_crc_length_set(uint32_t spi_periph, uint16_t crc_length);
/* turn on SPI CRC function */
void spi_crc_on(uint32_t spi_periph);
/* turn off SPI CRC function */
void spi_crc_off(uint32_t spi_periph);
/* SPI next data is CRC value */
void spi_crc_next(uint32_t spi_periph);
/* get SPI CRC send value or receive value */
uint16_t spi_crc_get(uint32_t spi_periph, uint8_t crc);
/* clear SPI CRC error flag status */
void spi_crc_error_clear(uint32_t spi_periph);
/* SPI TI mode functions */
/* enable SPI TI mode */
void spi_ti_mode_enable(uint32_t spi_periph);
/* disable SPI TI mode */
void spi_ti_mode_disable(uint32_t spi_periph);
/* SPI NSS pulse mode functions */
/* enable SPI NSS pulse mode */
void spi_nssp_mode_enable(uint32_t spi_periph);
/* disable SPI NSS pulse mode */
void spi_nssp_mode_disable(uint32_t spi_periph);
/* quad wire SPI functions */
/* enable quad wire SPI */
void spi_quad_enable(uint32_t spi_periph);
/* disable quad wire SPI */
void spi_quad_disable(uint32_t spi_periph);
/* enable quad wire SPI write */
void spi_quad_write_enable(uint32_t spi_periph);
/* enable quad wire SPI read */
void spi_quad_read_enable(uint32_t spi_periph);
/* enable quad wire SPI_IO2 and SPI_IO3 pin output */
void spi_quad_io23_output_enable(uint32_t spi_periph);
/* disable quad wire SPI_IO2 and SPI_IO3 pin output */
void spi_quad_io23_output_disable(uint32_t spi_periph);
/* flag and interrupt functions */
/* get SPI and I2S flag status */
FlagStatus spi_i2s_flag_get(uint32_t spi_periph, uint32_t flag);
/* enable SPI and I2S interrupt */
void spi_i2s_interrupt_enable(uint32_t spi_periph, uint8_t interrupt);
/* disable SPI and I2S interrupt */
void spi_i2s_interrupt_disable(uint32_t spi_periph, uint8_t interrupt);
/* get SPI and I2S interrupt status */
FlagStatus spi_i2s_interrupt_flag_get(uint32_t spi_periph, uint8_t interrupt);
#endif /* GD32E23X_SPI_H */

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/*!
\file GD32e23x_syscfg.h
\brief definitions for the SYSCFG
\version 2023-09-04, V2.0.1, firmware for GD32E23x
*/
/*
Copyright (c) 2024, GigaDevice Semiconductor Inc.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.
*/
#ifndef GD32E23X_SYSCFG_H
#define GD32E23X_SYSCFG_H
#include "gd32e23x.h"
/* SYSCFG definitions */
#define SYSCFG SYSCFG_BASE
/* registers definitions */
#define SYSCFG_CFG0 REG32(SYSCFG + 0x00U) /*!< system configuration register 0 */
#define SYSCFG_EXTISS0 REG32(SYSCFG + 0x08U) /*!< EXTI sources selection register 0 */
#define SYSCFG_EXTISS1 REG32(SYSCFG + 0x0CU) /*!< EXTI sources selection register 1 */
#define SYSCFG_EXTISS2 REG32(SYSCFG + 0x10U) /*!< EXTI sources selection register 2 */
#define SYSCFG_EXTISS3 REG32(SYSCFG + 0x14U) /*!< EXTI sources selection register 3 */
#define SYSCFG_CFG2 REG32(SYSCFG + 0x18U) /*!< system configuration register 2 */
#define SYSCFG_CPU_IRQ_LAT REG32(SYSCFG + 0x100U) /*!< IRQ Latency register */
/* SYSCFG_CFG0 bits definitions */
#define SYSCFG_CFG0_BOOT_MODE BITS(0,1) /*!< SYSCFG memory remap config */
#define SYSCFG_CFG0_PA11_PA12_RMP BIT(4) /*!< PA11 and PA12 remapping bit for small packages (28 and 20 pins) */
#define SYSCFG_CFG0_ADC_DMA_RMP BIT(8) /*!< ADC DMA remap config */
#define SYSCFG_CFG0_USART0_TX_DMA_RMP BIT(9) /*!< USART0 Tx DMA remap config */
#define SYSCFG_CFG0_USART0_RX_DMA_RMP BIT(10) /*!< USART0 Rx DMA remap config */
#define SYSCFG_CFG0_TIMER15_DMA_RMP BIT(11) /*!< TIMER 15 DMA remap config */
#define SYSCFG_CFG0_TIMER16_DMA_RMP BIT(12) /*!< TIMER 16 DMA remap config */
#define SYSCFG_CFG0_PB9_HCCE BIT(19) /*!< PB9 pin high current capability enable */
/* SYSCFG_EXTISS0 bits definitions */
#define SYSCFG_EXTISS0_EXTI0_SS BITS(0,3) /*!< EXTI 0 configuration */
#define SYSCFG_EXTISS0_EXTI1_SS BITS(4,7) /*!< EXTI 1 configuration */
#define SYSCFG_EXTISS0_EXTI2_SS BITS(8,11) /*!< EXTI 2 configuration */
#define SYSCFG_EXTISS0_EXTI3_SS BITS(12,15) /*!< EXTI 3 configuration */
/* SYSCFG_EXTISS1 bits definitions */
#define SYSCFG_EXTISS1_EXTI4_SS BITS(0,3) /*!< EXTI 4 configuration */
#define SYSCFG_EXTISS1_EXTI5_SS BITS(4,7) /*!< EXTI 5 configuration */
#define SYSCFG_EXTISS1_EXTI6_SS BITS(8,11) /*!< EXTI 6 configuration */
#define SYSCFG_EXTISS1_EXTI7_SS BITS(12,15) /*!< EXTI 7 configuration */
/* SYSCFG_EXTISS2 bits definitions */
#define SYSCFG_EXTISS2_EXTI8_SS BITS(0,3) /*!< EXTI 8 configuration */
#define SYSCFG_EXTISS2_EXTI9_SS BITS(4,7) /*!< EXTI 9 configuration */
#define SYSCFG_EXTISS2_EXTI10_SS BITS(8,11) /*!< EXTI 10 configuration */
#define SYSCFG_EXTISS2_EXTI11_SS BITS(12,15) /*!< EXTI 11 configuration */
/* SYSCFG_EXTISS3 bits definitions */
#define SYSCFG_EXTISS3_EXTI12_SS BITS(0,3) /*!< EXTI 12 configuration */
#define SYSCFG_EXTISS3_EXTI13_SS BITS(4,7) /*!< EXTI 13 configuration */
#define SYSCFG_EXTISS3_EXTI14_SS BITS(8,11) /*!< EXTI 14 configuration */
#define SYSCFG_EXTISS3_EXTI15_SS BITS(12,15) /*!< EXTI 15 configuration */
/* SYSCFG_CFG2 bits definitions */
#define SYSCFG_CFG2_LOCKUP_LOCK BIT(0) /*!< enable and lock the LOCKUP (Hardfault) output of Cortex-M23 with break input of TIMER0/14/15/16 */
#define SYSCFG_CFG2_SRAM_PARITY_ERROR_LOCK BIT(1) /*!< enable and lock the SRAM_PARITY error signal with break input of TIMER0/14/15/16 */
#define SYSCFG_CFG2_LVD_LOCK BIT(2) /*!< enable and lock the LVD connection with TIMER0 break input and also the LVD_EN and LVDSEL[2:0] bits of the power control interface */
#define SYSCFG_CFG2_SRAM_PCEF BIT(8) /*!< SRAM parity check error flag */
/* SYSCFG_CPU_IRQ_LAT bits definitions */
#define SYSCFG_CPU_IRQ_LAT_IRQ_LATENCY BITS(0,7) /*!< IRQ_LATENCY specifies the minimum number of cycles between an interrupt */
/* constants definitions */
/* DMA remap definitions */
#define SYSCFG_PA11_REMAP_PA12 SYSCFG_CFG0_PA11_PA12_RMP /*!< PA11 PA12 remap */
#define SYSCFG_DMA_REMAP_ADC SYSCFG_CFG0_ADC_DMA_RMP /*!< ADC DMA remap */
#define SYSCFG_DMA_REMAP_USART0TX SYSCFG_CFG0_USART0_TX_DMA_RMP /*!< USART0_TX DMA remap */
#define SYSCFG_DMA_REMAP_USART0RX SYSCFG_CFG0_USART0_RX_DMA_RMP /*!< USART0_RX DMA remap */
#define SYSCFG_DMA_REMAP_TIMER15 SYSCFG_CFG0_TIMER15_DMA_RMP /*!< TIMER15 DMA remap */
#define SYSCFG_DMA_REMAP_TIMER16 SYSCFG_CFG0_TIMER16_DMA_RMP /*!< TIMER16 DMA remap */
/* high current definitions */
#define SYSCFG_HIGH_CURRENT_ENABLE SYSCFG_CFG0_PB9_HCCE /*!< high current enable */
#define SYSCFG_HIGH_CURRENT_DISABLE (~SYSCFG_CFG0_PB9_HCCE) /*!< high current disable */
/* EXTI source select definition */
#define EXTISS0 ((uint8_t)0x00U) /*!< EXTI source select register 0 */
#define EXTISS1 ((uint8_t)0x01U) /*!< EXTI source select register 1 */
#define EXTISS2 ((uint8_t)0x02U) /*!< EXTI source select register 2 */
#define EXTISS3 ((uint8_t)0x03U) /*!< EXTI source select register 3 */
/* EXTI source select mask bits definition */
#define EXTI_SS_MASK BITS(0,3) /*!< EXTI source select mask */
/* EXTI source select jumping step definition */
#define EXTI_SS_JSTEP ((uint8_t)(0x04U)) /*!< EXTI source select jumping step */
/* EXTI source select moving step definition */
#define EXTI_SS_MSTEP(pin) (EXTI_SS_JSTEP * ((pin) % EXTI_SS_JSTEP)) /*!< EXTI source select moving step */
/* EXTI source port definitions */
#define EXTI_SOURCE_GPIOA ((uint8_t)0x00U) /*!< EXTI GPIOA configuration */
#define EXTI_SOURCE_GPIOB ((uint8_t)0x01U) /*!< EXTI GPIOB configuration */
#define EXTI_SOURCE_GPIOC ((uint8_t)0x02U) /*!< EXTI GPIOC configuration */
#define EXTI_SOURCE_GPIOF ((uint8_t)0x05U) /*!< EXTI GPIOF configuration */
/* EXTI source pin definitions */
#define EXTI_SOURCE_PIN0 ((uint8_t)0x00U) /*!< EXTI GPIO pin0 configuration */
#define EXTI_SOURCE_PIN1 ((uint8_t)0x01U) /*!< EXTI GPIO pin1 configuration */
#define EXTI_SOURCE_PIN2 ((uint8_t)0x02U) /*!< EXTI GPIO pin2 configuration */
#define EXTI_SOURCE_PIN3 ((uint8_t)0x03U) /*!< EXTI GPIO pin3 configuration */
#define EXTI_SOURCE_PIN4 ((uint8_t)0x04U) /*!< EXTI GPIO pin4 configuration */
#define EXTI_SOURCE_PIN5 ((uint8_t)0x05U) /*!< EXTI GPIO pin5 configuration */
#define EXTI_SOURCE_PIN6 ((uint8_t)0x06U) /*!< EXTI GPIO pin6 configuration */
#define EXTI_SOURCE_PIN7 ((uint8_t)0x07U) /*!< EXTI GPIO pin7 configuration */
#define EXTI_SOURCE_PIN8 ((uint8_t)0x08U) /*!< EXTI GPIO pin8 configuration */
#define EXTI_SOURCE_PIN9 ((uint8_t)0x09U) /*!< EXTI GPIO pin9 configuration */
#define EXTI_SOURCE_PIN10 ((uint8_t)0x0AU) /*!< EXTI GPIO pin10 configuration */
#define EXTI_SOURCE_PIN11 ((uint8_t)0x0BU) /*!< EXTI GPIO pin11 configuration */
#define EXTI_SOURCE_PIN12 ((uint8_t)0x0CU) /*!< EXTI GPIO pin12 configuration */
#define EXTI_SOURCE_PIN13 ((uint8_t)0x0DU) /*!< EXTI GPIO pin13 configuration */
#define EXTI_SOURCE_PIN14 ((uint8_t)0x0EU) /*!< EXTI GPIO pin14 configuration */
#define EXTI_SOURCE_PIN15 ((uint8_t)0x0FU) /*!< EXTI GPIO pin15 configuration */
/* lock definitions */
#define SYSCFG_LOCK_LOCKUP SYSCFG_CFG2_LOCKUP_LOCK /*!< LOCKUP output lock */
#define SYSCFG_LOCK_SRAM_PARITY_ERROR SYSCFG_CFG2_SRAM_PARITY_ERROR_LOCK /*!< SRAM parity error lock */
#define SYSCFG_LOCK_LVD SYSCFG_CFG2_LVD_LOCK /*!< LVD lock */
/* SRAM parity check error flag definitions */
#define SYSCFG_SRAM_PCEF SYSCFG_CFG2_SRAM_PCEF /*!< SRAM parity check error flag */
/* SYSCFG_CPU_IRQ_LAT register IRQ_LATENCY value */
#define IRQ_LATENCY(regval) (BITS(0,7) & ((uint32_t)(regval) << 0U)) /*!< write value to IRQ_LATENCY bits field */
/* function declarations */
/* deinit syscfg module */
void syscfg_deinit(void);
/* enable the DMA channels remapping */
void syscfg_dma_remap_enable(uint32_t syscfg_dma_remap);
/* disable the DMA channels remapping */
void syscfg_dma_remap_disable(uint32_t syscfg_dma_remap);
/* enable PB9 high current capability */
void syscfg_high_current_enable(void);
/* disable PB9 high current capability */
void syscfg_high_current_disable(void);
/* configure the GPIO pin as EXTI Line */
void syscfg_exti_line_config(uint8_t exti_port, uint8_t exti_pin);
/* connect TIMER0/14/15/16 break input to the selected parameter */
void syscfg_lock_config(uint32_t syscfg_lock);
/* set the IRQ_LATENCY value */
void irq_latency_set(uint8_t irq_latency);
/* check if the specified flag in SYSCFG_CFG2 is set or not */
FlagStatus syscfg_flag_get(uint32_t syscfg_flag);
/* clear the flag in SYSCFG_CFG2 by writing 1 */
void syscfg_flag_clear(uint32_t syscfg_flag);
#endif /* GD32E23X_SYSCFG_H */

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/*!
\file gd32e23x_timer.h
\brief definitions for the TIMER
\version 2024-02-22, V2.1.0, firmware for GD32E23x
*/
/*
Copyright (c) 2024, GigaDevice Semiconductor Inc.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.
*/
#ifndef GD32E23X_TIMER_H
#define GD32E23X_TIMER_H
#include "gd32e23x.h"
/* TIMERx(x=0,1,2,5,13..16) definitions */
#define TIMER0 (TIMER_BASE + 0x00012C00U)
#define TIMER2 (TIMER_BASE + 0x00000400U)
#define TIMER5 (TIMER_BASE + 0x00001000U)
#define TIMER13 (TIMER_BASE + 0x00002000U)
#define TIMER14 (TIMER_BASE + 0x00014000U)
#define TIMER15 (TIMER_BASE + 0x00014400U)
#define TIMER16 (TIMER_BASE + 0x00014800U)
/* registers definitions */
#define TIMER_CTL0(timerx) REG32((timerx) + 0x00U) /*!< TIMER control register 0 */
#define TIMER_CTL1(timerx) REG32((timerx) + 0x04U) /*!< TIMER control register 1 */
#define TIMER_SMCFG(timerx) REG32((timerx) + 0x08U) /*!< TIMER slave mode configuration register */
#define TIMER_DMAINTEN(timerx) REG32((timerx) + 0x0CU) /*!< TIMER DMA and interrupt enable register */
#define TIMER_INTF(timerx) REG32((timerx) + 0x10U) /*!< TIMER interrupt flag register */
#define TIMER_SWEVG(timerx) REG32((timerx) + 0x14U) /*!< TIMER software event generation register */
#define TIMER_CHCTL0(timerx) REG32((timerx) + 0x18U) /*!< TIMER channel control register 0 */
#define TIMER_CHCTL1(timerx) REG32((timerx) + 0x1CU) /*!< TIMER channel control register 1 */
#define TIMER_CHCTL2(timerx) REG32((timerx) + 0x20U) /*!< TIMER channel control register 2 */
#define TIMER_CNT(timerx) REG32((timerx) + 0x24U) /*!< TIMER counter register */
#define TIMER_PSC(timerx) REG32((timerx) + 0x28U) /*!< TIMER prescaler register */
#define TIMER_CAR(timerx) REG32((timerx) + 0x2CU) /*!< TIMER counter auto reload register */
#define TIMER_CREP(timerx) REG32((timerx) + 0x30U) /*!< TIMER counter repetition register */
#define TIMER_CH0CV(timerx) REG32((timerx) + 0x34U) /*!< TIMER channel 0 capture/compare value register */
#define TIMER_CH1CV(timerx) REG32((timerx) + 0x38U) /*!< TIMER channel 1 capture/compare value register */
#define TIMER_CH2CV(timerx) REG32((timerx) + 0x3CU) /*!< TIMER channel 2 capture/compare value register */
#define TIMER_CH3CV(timerx) REG32((timerx) + 0x40U) /*!< TIMER channel 3 capture/compare value register */
#define TIMER_CCHP(timerx) REG32((timerx) + 0x44U) /*!< TIMER complementary channel protection register */
#define TIMER_DMACFG(timerx) REG32((timerx) + 0x48U) /*!< TIMER DMA configuration register */
#define TIMER_DMATB(timerx) REG32((timerx) + 0x4CU) /*!< TIMER DMA transfer buffer register */
#define TIMER_IRMP(timerx) REG32((timerx) + 0x50U) /*!< TIMER channel input remap register */
#define TIMER_CFG(timerx) REG32((timerx) + 0xFCU) /*!< TIMER configuration register */
/* bits definitions */
/* TIMER_CTL0 */
#define TIMER_CTL0_CEN BIT(0) /*!< TIMER counter enable */
#define TIMER_CTL0_UPDIS BIT(1) /*!< update disable */
#define TIMER_CTL0_UPS BIT(2) /*!< update source */
#define TIMER_CTL0_SPM BIT(3) /*!< single pulse mode */
#define TIMER_CTL0_DIR BIT(4) /*!< timer counter direction */
#define TIMER_CTL0_CAM BITS(5,6) /*!< center-aligned mode selection */
#define TIMER_CTL0_ARSE BIT(7) /*!< auto-reload shadow enable */
#define TIMER_CTL0_CKDIV BITS(8,9) /*!< clock division */
/* TIMER_CTL1 */
#define TIMER_CTL1_CCSE BIT(0) /*!< commutation control shadow enable */
#define TIMER_CTL1_CCUC BIT(2) /*!< commutation control shadow register update control */
#define TIMER_CTL1_DMAS BIT(3) /*!< DMA request source selection */
#define TIMER_CTL1_MMC BITS(4,6) /*!< master mode control */
#define TIMER_CTL1_TI0S BIT(7) /*!< channel 0 trigger input selection(hall mode selection) */
#define TIMER_CTL1_ISO0 BIT(8) /*!< idle state of channel 0 output */
#define TIMER_CTL1_ISO0N BIT(9) /*!< idle state of channel 0 complementary output */
#define TIMER_CTL1_ISO1 BIT(10) /*!< idle state of channel 1 output */
#define TIMER_CTL1_ISO1N BIT(11) /*!< idle state of channel 1 complementary output */
#define TIMER_CTL1_ISO2 BIT(12) /*!< idle state of channel 2 output */
#define TIMER_CTL1_ISO2N BIT(13) /*!< idle state of channel 2 complementary output */
#define TIMER_CTL1_ISO3 BIT(14) /*!< idle state of channel 3 output */
/* TIMER_SMCFG */
#define TIMER_SMCFG_SMC BITS(0,2) /*!< slave mode control */
#define TIMER_SMCFG_OCRC BIT(3) /*!< OCPRE clear source selection */
#define TIMER_SMCFG_TRGS BITS(4,6) /*!< trigger selection */
#define TIMER_SMCFG_MSM BIT(7) /*!< master-slave mode */
#define TIMER_SMCFG_ETFC BITS(8,11) /*!< external trigger filter control */
#define TIMER_SMCFG_ETPSC BITS(12,13) /*!< external trigger prescaler */
#define TIMER_SMCFG_SMC1 BIT(14) /*!< part of SMC for enable external clock mode 1 */
#define TIMER_SMCFG_ETP BIT(15) /*!< external trigger polarity */
/* TIMER_DMAINTEN */
#define TIMER_DMAINTEN_UPIE BIT(0) /*!< update interrupt enable */
#define TIMER_DMAINTEN_CH0IE BIT(1) /*!< channel 0 capture/compare interrupt enable */
#define TIMER_DMAINTEN_CH1IE BIT(2) /*!< channel 1 capture/compare interrupt enable */
#define TIMER_DMAINTEN_CH2IE BIT(3) /*!< channel 2 capture/compare interrupt enable */
#define TIMER_DMAINTEN_CH3IE BIT(4) /*!< channel 3 capture/compare interrupt enable */
#define TIMER_DMAINTEN_CMTIE BIT(5) /*!< commutation interrupt request enable */
#define TIMER_DMAINTEN_TRGIE BIT(6) /*!< trigger interrupt enable */
#define TIMER_DMAINTEN_BRKIE BIT(7) /*!< break interrupt enable */
#define TIMER_DMAINTEN_UPDEN BIT(8) /*!< update DMA request enable */
#define TIMER_DMAINTEN_CH0DEN BIT(9) /*!< channel 0 DMA request enable */
#define TIMER_DMAINTEN_CH1DEN BIT(10) /*!< channel 1 DMA request enable */
#define TIMER_DMAINTEN_CH2DEN BIT(11) /*!< channel 2 DMA request enable */
#define TIMER_DMAINTEN_CH3DEN BIT(12) /*!< channel 3 DMA request enable */
#define TIMER_DMAINTEN_CMTDEN BIT(13) /*!< commutation DMA request enable */
#define TIMER_DMAINTEN_TRGDEN BIT(14) /*!< trigger DMA request enable */
/* TIMER_INTF */
#define TIMER_INTF_UPIF BIT(0) /*!< update interrupt flag */
#define TIMER_INTF_CH0IF BIT(1) /*!< channel 0 capture/compare interrupt flag */
#define TIMER_INTF_CH1IF BIT(2) /*!< channel 1 capture/compare interrupt flag */
#define TIMER_INTF_CH2IF BIT(3) /*!< channel 2 capture/compare interrupt flag */
#define TIMER_INTF_CH3IF BIT(4) /*!< channel 3 capture/compare interrupt flag */
#define TIMER_INTF_CMTIF BIT(5) /*!< channel commutation interrupt flag */
#define TIMER_INTF_TRGIF BIT(6) /*!< trigger interrupt flag */
#define TIMER_INTF_BRKIF BIT(7) /*!< break interrupt flag */
#define TIMER_INTF_CH0OF BIT(9) /*!< channel 0 overcapture flag */
#define TIMER_INTF_CH1OF BIT(10) /*!< channel 1 overcapture flag */
#define TIMER_INTF_CH2OF BIT(11) /*!< channel 2 overcapture flag */
#define TIMER_INTF_CH3OF BIT(12) /*!< channel 3 overcapture flag */
/* TIMER_SWEVG */
#define TIMER_SWEVG_UPG BIT(0) /*!< update event generate */
#define TIMER_SWEVG_CH0G BIT(1) /*!< channel 0 capture or compare event generation */
#define TIMER_SWEVG_CH1G BIT(2) /*!< channel 1 capture or compare event generation */
#define TIMER_SWEVG_CH2G BIT(3) /*!< channel 2 capture or compare event generation */
#define TIMER_SWEVG_CH3G BIT(4) /*!< channel 3 capture or compare event generation */
#define TIMER_SWEVG_CMTG BIT(5) /*!< channel commutation event generation */
#define TIMER_SWEVG_TRGG BIT(6) /*!< trigger event generation */
#define TIMER_SWEVG_BRKG BIT(7) /*!< break event generation */
/* TIMER_CHCTL0 */
/* output compare mode */
#define TIMER_CHCTL0_CH0MS BITS(0,1) /*!< channel 0 mode selection */
#define TIMER_CHCTL0_CH0COMFEN BIT(2) /*!< channel 0 output compare fast enable */
#define TIMER_CHCTL0_CH0COMSEN BIT(3) /*!< channel 0 output compare shadow enable */
#define TIMER_CHCTL0_CH0COMCTL BITS(4,6) /*!< channel 0 output compare mode */
#define TIMER_CHCTL0_CH0COMCEN BIT(7) /*!< channel 0 output compare clear enable */
#define TIMER_CHCTL0_CH1MS BITS(8,9) /*!< channel 1 mode selection */
#define TIMER_CHCTL0_CH1COMFEN BIT(10) /*!< channel 1 output compare fast enable */
#define TIMER_CHCTL0_CH1COMSEN BIT(11) /*!< channel 1 output compare shadow enable */
#define TIMER_CHCTL0_CH1COMCTL BITS(12,14) /*!< channel 1 output compare mode */
#define TIMER_CHCTL0_CH1COMCEN BIT(15) /*!< channel 1 output compare clear enable */
/* input capture mode */
#define TIMER_CHCTL0_CH0CAPPSC BITS(2,3) /*!< channel 0 input capture prescaler */
#define TIMER_CHCTL0_CH0CAPFLT BITS(4,7) /*!< channel 0 input capture filter control */
#define TIMER_CHCTL0_CH1CAPPSC BITS(10,11) /*!< channel 1 input capture prescaler */
#define TIMER_CHCTL0_CH1CAPFLT BITS(12,15) /*!< channel 1 input capture filter control */
/* TIMER_CHCTL1 */
/* output compare mode */
#define TIMER_CHCTL1_CH2MS BITS(0,1) /*!< channel 2 mode selection */
#define TIMER_CHCTL1_CH2COMFEN BIT(2) /*!< channel 2 output compare fast enable */
#define TIMER_CHCTL1_CH2COMSEN BIT(3) /*!< channel 2 output compare shadow enable */
#define TIMER_CHCTL1_CH2COMCTL BITS(4,6) /*!< channel 2 output compare mode */
#define TIMER_CHCTL1_CH2COMCEN BIT(7) /*!< channel 2 output compare clear enable */
#define TIMER_CHCTL1_CH3MS BITS(8,9) /*!< channel 3 mode selection */
#define TIMER_CHCTL1_CH3COMFEN BIT(10) /*!< channel 3 output compare fast enable */
#define TIMER_CHCTL1_CH3COMSEN BIT(11) /*!< channel 3 output compare shadow enable */
#define TIMER_CHCTL1_CH3COMCTL BITS(12,14) /*!< channel 3 output compare mode */
#define TIMER_CHCTL1_CH3COMCEN BIT(15) /*!< channel 3 output compare clear enable */
/* input capture mode */
#define TIMER_CHCTL1_CH2CAPPSC BITS(2,3) /*!< channel 2 input capture prescaler */
#define TIMER_CHCTL1_CH2CAPFLT BITS(4,7) /*!< channel 2 input capture filter control */
#define TIMER_CHCTL1_CH3CAPPSC BITS(10,11) /*!< channel 3 input capture prescaler */
#define TIMER_CHCTL1_CH3CAPFLT BITS(12,15) /*!< channel 3 input capture filter control */
/* TIMER_CHCTL2 */
#define TIMER_CHCTL2_CH0EN BIT(0) /*!< channel 0 capture/compare function enable */
#define TIMER_CHCTL2_CH0P BIT(1) /*!< channel 0 capture/compare function polarity */
#define TIMER_CHCTL2_CH0NEN BIT(2) /*!< channel 0 complementary output enable */
#define TIMER_CHCTL2_CH0NP BIT(3) /*!< channel 0 complementary output polarity */
#define TIMER_CHCTL2_CH1EN BIT(4) /*!< channel 1 capture/compare function enable */
#define TIMER_CHCTL2_CH1P BIT(5) /*!< channel 1 capture/compare function polarity */
#define TIMER_CHCTL2_CH1NEN BIT(6) /*!< channel 1 complementary output enable */
#define TIMER_CHCTL2_CH1NP BIT(7) /*!< channel 1 complementary output polarity */
#define TIMER_CHCTL2_CH2EN BIT(8) /*!< channel 2 capture/compare function enable */
#define TIMER_CHCTL2_CH2P BIT(9) /*!< channel 2 capture/compare function polarity */
#define TIMER_CHCTL2_CH2NEN BIT(10) /*!< channel 2 complementary output enable */
#define TIMER_CHCTL2_CH2NP BIT(11) /*!< channel 2 complementary output polarity */
#define TIMER_CHCTL2_CH3EN BIT(12) /*!< channel 3 capture/compare function enable */
#define TIMER_CHCTL2_CH3P BIT(13) /*!< channel 3 capture/compare function polarity */
#define TIMER_CHCTL2_CH3NP BIT(15) /*!< channel 3 complementary output polarity */
/* TIMER_CNT */
#define TIMER_CNT_CNT16 BITS(0,15) /*!< 16 bit timer counter */
/* TIMER_PSC */
#define TIMER_PSC_PSC BITS(0,15) /*!< prescaler value of the counter clock */
/* TIMER_CAR */
#define TIMER_CAR_CARL16 BITS(0,15) /*!< 16 bit counter auto reload value */
/* TIMER_CREP */
#define TIMER_CREP_CREP BITS(0,7) /*!< counter repetition value */
/* TIMER_CH0CV */
#define TIMER_CH0CV_CH0VAL16 BITS(0,15) /*!< 16 bit capture/compare value of channel 0 */
/* TIMER_CH1CV */
#define TIMER_CH1CV_CH1VAL16 BITS(0,15) /*!< 16 bit capture/compare value of channel 1 */
/* TIMER_CH2CV */
#define TIMER_CH2CV_CH2VAL16 BITS(0,15) /*!< 16 bit capture/compare value of channel 2 */
/* TIMER_CH3CV */
#define TIMER_CH3CV_CH3VAL16 BITS(0,15) /*!< 16 bit capture/compare value of channel 3 */
/* TIMER_CCHP */
#define TIMER_CCHP_DTCFG BITS(0,7) /*!< dead time configure */
#define TIMER_CCHP_PROT BITS(8,9) /*!< complementary register protect control */
#define TIMER_CCHP_IOS BIT(10) /*!< idle mode off-state configure */
#define TIMER_CCHP_ROS BIT(11) /*!< run mode off-state configure */
#define TIMER_CCHP_BRKEN BIT(12) /*!< break enable */
#define TIMER_CCHP_BRKP BIT(13) /*!< break polarity */
#define TIMER_CCHP_OAEN BIT(14) /*!< output automatic enable */
#define TIMER_CCHP_POEN BIT(15) /*!< primary output enable */
/* TIMER_DMACFG */
#define TIMER_DMACFG_DMATA BITS(0,4) /*!< DMA transfer access start address */
#define TIMER_DMACFG_DMATC BITS(8,12) /*!< DMA transfer count */
/* TIMER_DMATB */
#define TIMER_DMATB_DMATB BITS(0,15) /*!< DMA transfer buffer address */
/* TIMER_IRMP */
#define TIMER13_IRMP_CI0_RMP BITS(0,1) /*!< TIMER13 channel 0 input remap */
/* TIMER_CFG */
#define TIMER_CFG_OUTSEL BIT(0) /*!< the output value selection */
#define TIMER_CFG_CHVSEL BIT(1) /*!< write CHxVAL register selection */
/* constants definitions */
/* TIMER init parameter struct definitions*/
typedef struct
{
uint16_t prescaler; /*!< prescaler value */
uint16_t alignedmode; /*!< aligned mode */
uint16_t counterdirection; /*!< counter direction */
uint16_t clockdivision; /*!< clock division value */
uint32_t period; /*!< period value */
uint8_t repetitioncounter; /*!< the counter repetition value */
}timer_parameter_struct;
/* break parameter struct definitions*/
typedef struct
{
uint16_t runoffstate; /*!< run mode off-state */
uint16_t ideloffstate; /*!< idle mode off-state */
uint16_t deadtime; /*!< dead time */
uint16_t breakpolarity; /*!< break polarity */
uint16_t outputautostate; /*!< output automatic enable */
uint16_t protectmode; /*!< complementary register protect control */
uint16_t breakstate; /*!< break enable */
}timer_break_parameter_struct;
/* channel output parameter struct definitions */
typedef struct
{
uint16_t outputstate; /*!< channel output state */
uint16_t outputnstate; /*!< channel complementary output state */
uint16_t ocpolarity; /*!< channel output polarity */
uint16_t ocnpolarity; /*!< channel complementary output polarity */
uint16_t ocidlestate; /*!< idle state of channel output */
uint16_t ocnidlestate; /*!< idle state of channel complementary output */
}timer_oc_parameter_struct;
/* channel input parameter struct definitions */
typedef struct
{
uint16_t icpolarity; /*!< channel input polarity */
uint16_t icselection; /*!< channel input mode selection */
uint16_t icprescaler; /*!< channel input capture prescaler */
uint16_t icfilter; /*!< channel input capture filter control */
}timer_ic_parameter_struct;
/* TIMER interrupt enable or disable */
#define TIMER_INT_UP TIMER_DMAINTEN_UPIE /*!< update interrupt */
#define TIMER_INT_CH0 TIMER_DMAINTEN_CH0IE /*!< channel 0 interrupt */
#define TIMER_INT_CH1 TIMER_DMAINTEN_CH1IE /*!< channel 1 interrupt */
#define TIMER_INT_CH2 TIMER_DMAINTEN_CH2IE /*!< channel 2 interrupt */
#define TIMER_INT_CH3 TIMER_DMAINTEN_CH3IE /*!< channel 3 interrupt */
#define TIMER_INT_CMT TIMER_DMAINTEN_CMTIE /*!< channel commutation interrupt flag */
#define TIMER_INT_TRG TIMER_DMAINTEN_TRGIE /*!< trigger interrupt */
#define TIMER_INT_BRK TIMER_DMAINTEN_BRKIE /*!< break interrupt */
/* TIMER flag */
#define TIMER_FLAG_UP TIMER_INTF_UPIF /*!< update flag */
#define TIMER_FLAG_CH0 TIMER_INTF_CH0IF /*!< channel 0 flag */
#define TIMER_FLAG_CH1 TIMER_INTF_CH1IF /*!< channel 1 flag */
#define TIMER_FLAG_CH2 TIMER_INTF_CH2IF /*!< channel 2 flag */
#define TIMER_FLAG_CH3 TIMER_INTF_CH3IF /*!< channel 3 flag */
#define TIMER_FLAG_CMT TIMER_INTF_CMTIF /*!< channel commutation flag */
#define TIMER_FLAG_TRG TIMER_INTF_TRGIF /*!< trigger flag */
#define TIMER_FLAG_BRK TIMER_INTF_BRKIF /*!< break flag */
#define TIMER_FLAG_CH0O TIMER_INTF_CH0OF /*!< channel 0 overcapture flag */
#define TIMER_FLAG_CH1O TIMER_INTF_CH1OF /*!< channel 1 overcapture flag */
#define TIMER_FLAG_CH2O TIMER_INTF_CH2OF /*!< channel 2 overcapture flag */
#define TIMER_FLAG_CH3O TIMER_INTF_CH3OF /*!< channel 3 overcapture flag */
/* TIMER interrupt flag */
#define TIMER_INT_FLAG_UP TIMER_INTF_UPIF /*!< update interrupt flag */
#define TIMER_INT_FLAG_CH0 TIMER_INTF_CH0IF /*!< channel 0 interrupt flag */
#define TIMER_INT_FLAG_CH1 TIMER_INTF_CH1IF /*!< channel 1 interrupt flag */
#define TIMER_INT_FLAG_CH2 TIMER_INTF_CH2IF /*!< channel 2 interrupt flag */
#define TIMER_INT_FLAG_CH3 TIMER_INTF_CH3IF /*!< channel 3 interrupt flag */
#define TIMER_INT_FLAG_CMT TIMER_INTF_CMTIF /*!< channel commutation interrupt flag */
#define TIMER_INT_FLAG_TRG TIMER_INTF_TRGIF /*!< trigger interrupt flag */
#define TIMER_INT_FLAG_BRK TIMER_INTF_BRKIF
/* TIMER DMA source enable */
#define TIMER_DMA_UPD ((uint16_t)TIMER_DMAINTEN_UPDEN) /*!< update DMA enable */
#define TIMER_DMA_CH0D ((uint16_t)TIMER_DMAINTEN_CH0DEN) /*!< channel 0 DMA enable */
#define TIMER_DMA_CH1D ((uint16_t)TIMER_DMAINTEN_CH1DEN) /*!< channel 1 DMA enable */
#define TIMER_DMA_CH2D ((uint16_t)TIMER_DMAINTEN_CH2DEN) /*!< channel 2 DMA enable */
#define TIMER_DMA_CH3D ((uint16_t)TIMER_DMAINTEN_CH3DEN) /*!< channel 3 DMA enable */
#define TIMER_DMA_CMTD ((uint16_t)TIMER_DMAINTEN_CMTDEN) /*!< commutation DMA request enable */
#define TIMER_DMA_TRGD ((uint16_t)TIMER_DMAINTEN_TRGDEN) /*!< trigger DMA enable */
/* channel DMA request source selection */
#define TIMER_DMAREQUEST_UPDATEEVENT TIMER_CTL1_DMAS /*!< DMA request of channel y is sent when update event occurs */
#define TIMER_DMAREQUEST_CHANNELEVENT ((uint32_t)0x00000000U) /*!< DMA request of channel y is sent when channel y event occurs */
/* DMA access base address */
#define DMACFG_DMATA(regval) (BITS(0, 4) & ((uint32_t)(regval) << 0U))
#define TIMER_DMACFG_DMATA_CTL0 DMACFG_DMATA(0) /*!< DMA transfer address is TIMER_CTL0 */
#define TIMER_DMACFG_DMATA_CTL1 DMACFG_DMATA(1) /*!< DMA transfer address is TIMER_CTL1 */
#define TIMER_DMACFG_DMATA_SMCFG DMACFG_DMATA(2) /*!< DMA transfer address is TIMER_SMCFG */
#define TIMER_DMACFG_DMATA_DMAINTEN DMACFG_DMATA(3) /*!< DMA transfer address is TIMER_DMAINTEN */
#define TIMER_DMACFG_DMATA_INTF DMACFG_DMATA(4) /*!< DMA transfer address is TIMER_INTF */
#define TIMER_DMACFG_DMATA_SWEVG DMACFG_DMATA(5) /*!< DMA transfer address is TIMER_SWEVG */
#define TIMER_DMACFG_DMATA_CHCTL0 DMACFG_DMATA(6) /*!< DMA transfer address is TIMER_CHCTL0 */
#define TIMER_DMACFG_DMATA_CHCTL1 DMACFG_DMATA(7) /*!< DMA transfer address is TIMER_CHCTL1 */
#define TIMER_DMACFG_DMATA_CHCTL2 DMACFG_DMATA(8) /*!< DMA transfer address is TIMER_CHCTL2 */
#define TIMER_DMACFG_DMATA_CNT DMACFG_DMATA(9) /*!< DMA transfer address is TIMER_CNT */
#define TIMER_DMACFG_DMATA_PSC DMACFG_DMATA(10) /*!< DMA transfer address is TIMER_PSC */
#define TIMER_DMACFG_DMATA_CAR DMACFG_DMATA(11) /*!< DMA transfer address is TIMER_CAR */
#define TIMER_DMACFG_DMATA_CREP DMACFG_DMATA(12) /*!< DMA transfer address is TIMER_CREP */
#define TIMER_DMACFG_DMATA_CH0CV DMACFG_DMATA(13) /*!< DMA transfer address is TIMER_CH0CV */
#define TIMER_DMACFG_DMATA_CH1CV DMACFG_DMATA(14) /*!< DMA transfer address is TIMER_CH1CV */
#define TIMER_DMACFG_DMATA_CH2CV DMACFG_DMATA(15) /*!< DMA transfer address is TIMER_CH2CV */
#define TIMER_DMACFG_DMATA_CH3CV DMACFG_DMATA(16) /*!< DMA transfer address is TIMER_CH3CV */
#define TIMER_DMACFG_DMATA_CCHP DMACFG_DMATA(17) /*!< DMA transfer address is TIMER_CCHP */
#define TIMER_DMACFG_DMATA_DMACFG DMACFG_DMATA(18) /*!< DMA transfer address is TIMER_DMACFG */
/* DMA access burst length */
#define DMACFG_DMATC(regval) (BITS(8, 12) & ((uint32_t)(regval) << 8U))
#define TIMER_DMACFG_DMATC_1TRANSFER DMACFG_DMATC(0) /*!< DMA transfer 1 time */
#define TIMER_DMACFG_DMATC_2TRANSFER DMACFG_DMATC(1) /*!< DMA transfer 2 times */
#define TIMER_DMACFG_DMATC_3TRANSFER DMACFG_DMATC(2) /*!< DMA transfer 3 times */
#define TIMER_DMACFG_DMATC_4TRANSFER DMACFG_DMATC(3) /*!< DMA transfer 4 times */
#define TIMER_DMACFG_DMATC_5TRANSFER DMACFG_DMATC(4) /*!< DMA transfer 5 times */
#define TIMER_DMACFG_DMATC_6TRANSFER DMACFG_DMATC(5) /*!< DMA transfer 6 times */
#define TIMER_DMACFG_DMATC_7TRANSFER DMACFG_DMATC(6) /*!< DMA transfer 7 times */
#define TIMER_DMACFG_DMATC_8TRANSFER DMACFG_DMATC(7) /*!< DMA transfer 8 times */
#define TIMER_DMACFG_DMATC_9TRANSFER DMACFG_DMATC(8) /*!< DMA transfer 9 times */
#define TIMER_DMACFG_DMATC_10TRANSFER DMACFG_DMATC(9) /*!< DMA transfer 10 times */
#define TIMER_DMACFG_DMATC_11TRANSFER DMACFG_DMATC(10) /*!< DMA transfer 11 times */
#define TIMER_DMACFG_DMATC_12TRANSFER DMACFG_DMATC(11) /*!< DMA transfer 12 times */
#define TIMER_DMACFG_DMATC_13TRANSFER DMACFG_DMATC(12) /*!< DMA transfer 13 times */
#define TIMER_DMACFG_DMATC_14TRANSFER DMACFG_DMATC(13) /*!< DMA transfer 14 times */
#define TIMER_DMACFG_DMATC_15TRANSFER DMACFG_DMATC(14) /*!< DMA transfer 15 times */
#define TIMER_DMACFG_DMATC_16TRANSFER DMACFG_DMATC(15) /*!< DMA transfer 16 times */
#define TIMER_DMACFG_DMATC_17TRANSFER DMACFG_DMATC(16) /*!< DMA transfer 17 times */
#define TIMER_DMACFG_DMATC_18TRANSFER DMACFG_DMATC(17) /*!< DMA transfer 18 times */
/* TIMER software event generation source */
#define TIMER_EVENT_SRC_UPG ((uint16_t)0x0001U) /*!< update event generation */
#define TIMER_EVENT_SRC_CH0G ((uint16_t)0x0002U) /*!< channel 0 capture or compare event generation */
#define TIMER_EVENT_SRC_CH1G ((uint16_t)0x0004U) /*!< channel 1 capture or compare event generation */
#define TIMER_EVENT_SRC_CH2G ((uint16_t)0x0008U) /*!< channel 2 capture or compare event generation */
#define TIMER_EVENT_SRC_CH3G ((uint16_t)0x0010U) /*!< channel 3 capture or compare event generation */
#define TIMER_EVENT_SRC_CMTG ((uint16_t)0x0020U) /*!< channel commutation event generation */
#define TIMER_EVENT_SRC_TRGG ((uint16_t)0x0040U) /*!< trigger event generation */
#define TIMER_EVENT_SRC_BRKG ((uint16_t)0x0080U) /*!< break event generation */
/* center-aligned mode selection */
#define CTL0_CAM(regval) ((uint16_t)(BITS(5, 6) & ((uint32_t)(regval) << 5U)))
#define TIMER_COUNTER_EDGE CTL0_CAM(0) /*!< edge-aligned mode */
#define TIMER_COUNTER_CENTER_DOWN CTL0_CAM(1) /*!< center-aligned and counting down assert mode */
#define TIMER_COUNTER_CENTER_UP CTL0_CAM(2) /*!< center-aligned and counting up assert mode */
#define TIMER_COUNTER_CENTER_BOTH CTL0_CAM(3) /*!< center-aligned and counting up/down assert mode */
/* TIMER prescaler reload mode */
#define TIMER_PSC_RELOAD_NOW TIMER_SWEVG_UPG /*!< the prescaler is loaded right now */
#define TIMER_PSC_RELOAD_UPDATE ((uint32_t)0x00000000U) /*!< the prescaler is loaded at the next update event */
/* count direction */
#define TIMER_COUNTER_UP ((uint16_t)0x0000U) /*!< counter up direction */
#define TIMER_COUNTER_DOWN ((uint16_t)TIMER_CTL0_DIR) /*!< counter down direction */
/* specify division ratio between TIMER clock and dead-time and sampling clock */
#define CTL0_CKDIV(regval) ((uint16_t)(BITS(8, 9) & ((uint32_t)(regval) << 8U)))
#define TIMER_CKDIV_DIV1 CTL0_CKDIV(0) /*!< clock division value is 1, fDTS=fTIMER_CK */
#define TIMER_CKDIV_DIV2 CTL0_CKDIV(1) /*!< clock division value is 2, fDTS= fTIMER_CK/2 */
#define TIMER_CKDIV_DIV4 CTL0_CKDIV(2) /*!< clock division value is 4, fDTS= fTIMER_CK/4 */
/* single pulse mode */
#define TIMER_SP_MODE_SINGLE TIMER_CTL0_SPM /*!< single pulse mode */
#define TIMER_SP_MODE_REPETITIVE ((uint32_t)0x00000000U) /*!< repetitive pulse mode */
/* update source */
#define TIMER_UPDATE_SRC_REGULAR TIMER_CTL0_UPS /*!< update generate only by counter overflow/underflow */
#define TIMER_UPDATE_SRC_GLOBAL ((uint32_t)0x00000000U) /*!< update generate by setting of UPG bit or the counter overflow/underflow,or the slave mode controller trigger */
/* run mode off-state configure */
#define TIMER_ROS_STATE_ENABLE ((uint16_t)TIMER_CCHP_ROS) /*!< when POEN bit is set, the channel output signals (CHx_O/CHx_ON) are enabled, with relationship to CHxEN/CHxNEN bits */
#define TIMER_ROS_STATE_DISABLE ((uint16_t)0x0000U) /*!< when POEN bit is set, the channel output signals (CHx_O/CHx_ON) are disabled */
/* idle mode off-state configure */
#define TIMER_IOS_STATE_ENABLE ((uint16_t)TIMER_CCHP_IOS) /*!< when POEN bit is reset, he channel output signals (CHx_O/CHx_ON) are enabled, with relationship to CHxEN/CHxNEN bits */
#define TIMER_IOS_STATE_DISABLE ((uint16_t)0x0000U) /*!< when POEN bit is reset, the channel output signals (CHx_O/CHx_ON) are disabled */
/* break input polarity */
#define TIMER_BREAK_POLARITY_LOW ((uint16_t)0x0000U) /*!< break input polarity is low */
#define TIMER_BREAK_POLARITY_HIGH ((uint16_t)TIMER_CCHP_BRKP) /*!< break input polarity is high */
/* output automatic enable */
#define TIMER_OUTAUTO_ENABLE ((uint16_t)TIMER_CCHP_OAEN) /*!< output automatic enable */
#define TIMER_OUTAUTO_DISABLE ((uint16_t)0x0000U) /*!< output automatic disable */
/* complementary register protect control */
#define CCHP_PROT(regval) ((uint16_t)(BITS(8, 9) & ((uint32_t)(regval) << 8U)))
#define TIMER_CCHP_PROT_OFF CCHP_PROT(0) /*!< protect disable */
#define TIMER_CCHP_PROT_0 CCHP_PROT(1) /*!< PROT mode 0 */
#define TIMER_CCHP_PROT_1 CCHP_PROT(2) /*!< PROT mode 1 */
#define TIMER_CCHP_PROT_2 CCHP_PROT(3) /*!< PROT mode 2 */
/* break input enable */
#define TIMER_BREAK_ENABLE ((uint16_t)TIMER_CCHP_BRKEN) /*!< break input enable */
#define TIMER_BREAK_DISABLE ((uint16_t)0x0000U) /*!< break input disable */
/* TIMER channel n(n=0,1,2,3) */
#define TIMER_CH_0 ((uint16_t)0x0000U) /*!< TIMER channel 0(TIMERx(x=0,2,13..16)) */
#define TIMER_CH_1 ((uint16_t)0x0001U) /*!< TIMER channel 1(TIMERx(x=0,2,14)) */
#define TIMER_CH_2 ((uint16_t)0x0002U) /*!< TIMER channel 2(TIMERx(x=0,2)) */
#define TIMER_CH_3 ((uint16_t)0x0003U) /*!< TIMER channel 3(TIMERx(x=0,2)) */
#define TIMER_CH_0_1 ((uint16_t)0x0004U) /*!< TIMER channel 0 and 1 for function parameter */
/* channel enable state*/
#define TIMER_CCX_ENABLE ((uint32_t)0x00000001U) /*!< channel enable */
#define TIMER_CCX_DISABLE ((uint32_t)0x00000000U) /*!< channel disable */
/* channel complementary output enable state*/
#define TIMER_CCXN_ENABLE ((uint16_t)0x0004U) /*!< channel complementary enable */
#define TIMER_CCXN_DISABLE ((uint16_t)0x0000U) /*!< channel complementary disable */
/* channel output polarity */
#define TIMER_OC_POLARITY_HIGH ((uint16_t)0x0000U) /*!< channel output polarity is high */
#define TIMER_OC_POLARITY_LOW ((uint16_t)0x0002U) /*!< channel output polarity is low */
/* channel complementary output polarity */
#define TIMER_OCN_POLARITY_HIGH ((uint16_t)0x0000U) /*!< channel complementary output polarity is high */
#define TIMER_OCN_POLARITY_LOW ((uint16_t)0x0008U) /*!< channel complementary output polarity is low */
/* idle state of channel output */
#define TIMER_OC_IDLE_STATE_HIGH ((uint16_t)0x0100) /*!< idle state of channel output is high */
#define TIMER_OC_IDLE_STATE_LOW ((uint16_t)0x0000) /*!< idle state of channel output is low */
/* idle state of channel complementary output */
#define TIMER_OCN_IDLE_STATE_HIGH ((uint16_t)0x0200U) /*!< idle state of channel complementary output is high */
#define TIMER_OCN_IDLE_STATE_LOW ((uint16_t)0x0000U) /*!< idle state of channel complementary output is low */
/* channel output compare mode */
#define TIMER_OC_MODE_TIMING ((uint16_t)0x0000U) /*!< timing mode */
#define TIMER_OC_MODE_ACTIVE ((uint16_t)0x0010U) /*!< active mode */
#define TIMER_OC_MODE_INACTIVE ((uint16_t)0x0020U) /*!< inactive mode */
#define TIMER_OC_MODE_TOGGLE ((uint16_t)0x0030U) /*!< toggle mode */
#define TIMER_OC_MODE_LOW ((uint16_t)0x0040U) /*!< force low mode */
#define TIMER_OC_MODE_HIGH ((uint16_t)0x0050U) /*!< force high mode */
#define TIMER_OC_MODE_PWM0 ((uint16_t)0x0060U) /*!< PWM0 mode */
#define TIMER_OC_MODE_PWM1 ((uint16_t)0x0070U) /*!< PWM1 mode*/
/* channel output compare shadow enable */
#define TIMER_OC_SHADOW_ENABLE ((uint16_t)0x0008U) /*!< channel output shadow state enable */
#define TIMER_OC_SHADOW_DISABLE ((uint16_t)0x0000U) /*!< channel output shadow state disable */
/* channel output compare fast enable */
#define TIMER_OC_FAST_ENABLE ((uint16_t)0x0004) /*!< channel output fast function enable */
#define TIMER_OC_FAST_DISABLE ((uint16_t)0x0000) /*!< channel output fast function disable */
/* channel output compare clear enable */
#define TIMER_OC_CLEAR_ENABLE ((uint16_t)0x0080U) /*!< channel output clear function enable */
#define TIMER_OC_CLEAR_DISABLE ((uint16_t)0x0000U) /*!< channel output clear function disable */
/* channel control shadow register update control */
#define TIMER_UPDATECTL_CCU ((uint32_t)0x00000000U) /*!< the shadow registers are updated when CMTG bit is set */
#define TIMER_UPDATECTL_CCUTRI TIMER_CTL1_CCUC /*!< the shadow registers are updated when CMTG bit is set or an rising edge of TRGI occurs */
/* channel input capture polarity */
#define TIMER_IC_POLARITY_RISING ((uint16_t)0x0000U) /*!< input capture rising edge */
#define TIMER_IC_POLARITY_FALLING ((uint16_t)0x0002U) /*!< input capture falling edge */
#define TIMER_IC_POLARITY_BOTH_EDGE ((uint16_t)0x000AU) /*!< input capture both edge */
/* TIMER input capture selection */
#define TIMER_IC_SELECTION_DIRECTTI ((uint16_t)0x0001U) /*!< channel y is configured as input and icy is mapped on CIy */
#define TIMER_IC_SELECTION_INDIRECTTI ((uint16_t)0x0002U) /*!< channel y is configured as input and icy is mapped on opposite input */
#define TIMER_IC_SELECTION_ITS ((uint16_t)0x0003U) /*!< channel y is configured as input and icy is mapped on ITS */
/* channel input capture prescaler */
#define TIMER_IC_PSC_DIV1 ((uint16_t)0x0000U) /*!< no prescaler */
#define TIMER_IC_PSC_DIV2 ((uint16_t)0x0004U) /*!< divided by 2 */
#define TIMER_IC_PSC_DIV4 ((uint16_t)0x0008U) /*!< divided by 4*/
#define TIMER_IC_PSC_DIV8 ((uint16_t)0x000CU) /*!< divided by 8 */
/* trigger selection */
#define SMCFG_TRGSEL(regval) (BITS(4, 6) & ((uint32_t)(regval) << 4U))
#define TIMER_SMCFG_TRGSEL_ITI0 SMCFG_TRGSEL(0) /*!< internal trigger 0 */
#define TIMER_SMCFG_TRGSEL_ITI1 SMCFG_TRGSEL(1) /*!< internal trigger 1 */
#define TIMER_SMCFG_TRGSEL_ITI2 SMCFG_TRGSEL(2) /*!< internal trigger 2 */
#define TIMER_SMCFG_TRGSEL_ITI3 SMCFG_TRGSEL(3) /*!< internal trigger 3 */
#define TIMER_SMCFG_TRGSEL_CI0F_ED SMCFG_TRGSEL(4) /*!< TI0 Edge Detector */
#define TIMER_SMCFG_TRGSEL_CI0FE0 SMCFG_TRGSEL(5) /*!< filtered TIMER input 0 */
#define TIMER_SMCFG_TRGSEL_CI1FE1 SMCFG_TRGSEL(6) /*!< filtered TIMER input 1 */
#define TIMER_SMCFG_TRGSEL_ETIFP SMCFG_TRGSEL(7) /*!< external trigger */
/* master mode control */
#define CTL1_MMC(regval) (BITS(4, 6) & ((uint32_t)(regval) << 4U))
#define TIMER_TRI_OUT_SRC_RESET CTL1_MMC(0) /*!< the UPG bit as trigger output */
#define TIMER_TRI_OUT_SRC_ENABLE CTL1_MMC(1) /*!< the counter enable signal TIMER_CTL0_CEN as trigger output */
#define TIMER_TRI_OUT_SRC_UPDATE CTL1_MMC(2) /*!< update event as trigger output */
#define TIMER_TRI_OUT_SRC_CH0 CTL1_MMC(3) /*!< a capture or a compare match occurred in channal0 as trigger output TRGO */
#define TIMER_TRI_OUT_SRC_O0CPRE CTL1_MMC(4) /*!< O0CPRE as trigger output */
#define TIMER_TRI_OUT_SRC_O1CPRE CTL1_MMC(5) /*!< O1CPRE as trigger output */
#define TIMER_TRI_OUT_SRC_O2CPRE CTL1_MMC(6) /*!< O2CPRE as trigger output */
#define TIMER_TRI_OUT_SRC_O3CPRE CTL1_MMC(7) /*!< O3CPRE as trigger output */
/* slave mode control */
#define SMCFG_SMC(regval) (BITS(0, 2) & ((uint32_t)(regval) << 0U))
#define TIMER_SLAVE_MODE_DISABLE SMCFG_SMC(0) /*!< slave mode disable */
#define TIMER_QUAD_DECODER_MODE0 SMCFG_SMC(1) /*!< quadrature decoder mode 0 */
#define TIMER_QUAD_DECODER_MODE1 SMCFG_SMC(2) /*!< quadrature decoder mode 1 */
#define TIMER_QUAD_DECODER_MODE2 SMCFG_SMC(3) /*!< quadrature decoder mode 2 */
#define TIMER_SLAVE_MODE_RESTART SMCFG_SMC(4) /*!< restart mode */
#define TIMER_SLAVE_MODE_PAUSE SMCFG_SMC(5) /*!< pause mode */
#define TIMER_SLAVE_MODE_EVENT SMCFG_SMC(6) /*!< event mode */
#define TIMER_SLAVE_MODE_EXTERNAL0 SMCFG_SMC(7) /*!< external clock mode 0 */
/* OCPRE clear source selection */
#define TIMER_OCPRE_CLEAR_SOURCE_CLR ((uint8_t)0x00U) /*!< OCPRE_CLR_INT is connected to the OCPRE_CLR input */
#define TIMER_OCPRE_CLEAR_SOURCE_ETIF ((uint8_t)0x01U) /*!< OCPRE_CLR_INT is connected to ETIF */
#define TIMER_OCPRE_CLEAR_SOURCE_DISABLE ((uint8_t)0x02U) /*!< OCRC=0, and disable ETI */
/* master slave mode selection */
#define TIMER_MASTER_SLAVE_MODE_ENABLE TIMER_SMCFG_MSM /*!< master slave mode enable */
#define TIMER_MASTER_SLAVE_MODE_DISABLE ((uint32_t)0x00000000U) /*!< master slave mode disable */
/* external trigger prescaler */
#define SMCFG_ETPSC(regval) (BITS(12, 13) & ((uint32_t)(regval) << 12U))
#define TIMER_EXT_TRI_PSC_OFF SMCFG_ETPSC(0) /*!< no divided */
#define TIMER_EXT_TRI_PSC_DIV2 SMCFG_ETPSC(1) /*!< divided by 2 */
#define TIMER_EXT_TRI_PSC_DIV4 SMCFG_ETPSC(2) /*!< divided by 4 */
#define TIMER_EXT_TRI_PSC_DIV8 SMCFG_ETPSC(3) /*!< divided by 8 */
/* external trigger polarity */
#define TIMER_ETP_FALLING TIMER_SMCFG_ETP /*!< active low or falling edge active */
#define TIMER_ETP_RISING ((uint32_t)0x00000000U) /*!< active high or rising edge active */
/* channel 0 trigger input selection */
#define TIMER_HALLINTERFACE_ENABLE TIMER_CTL1_TI0S /*!< TIMER hall sensor mode enable */
#define TIMER_HALLINTERFACE_DISABLE ((uint32_t)0x00000000U) /*!< TIMER hall sensor mode disable */
/* TIMERx(x=0,2,13,14,15,16) write cc register selection */
#define TIMER_CHVSEL_ENABLE ((uint16_t)TIMER_CFG_OUTSEL) /*!< write CHxVAL register selection enable */
#define TIMER_CHVSEL_DISABLE ((uint16_t)0x0000U) /*!< write CHxVAL register selection disable */
/* the output value selection */
#define TIMER_OUTSEL_ENABLE ((uint16_t)TIMER_CFG_OUTSEL) /*!< output value selection enable */
#define TIMER_OUTSEL_DISABLE ((uint16_t)0x0000U) /*!< output value selection disable */
/* timer13 channel 0 input remap */
#define TIMER13_IRMP(regval) (BITS(0, 1) & ((uint32_t)(regval) << 0U))
#define TIMER13_CI0_RMP_GPIO TIMER13_IRMP(0) /*!< timer13 channel 0 input is connected to GPIO(TIMER13_CH0) */
#define TIMER13_CI0_RMP_RTCCLK TIMER13_IRMP(1) /*!< timer13 channel 0 input is connected to the RTCCLK */
#define TIMER13_CI0_RMP_HXTAL_DIV32 TIMER13_IRMP(2) /*!< timer13 channel 0 input is connected to HXTAL/32 clock */
#define TIMER13_CI0_RMP_CKOUTSEL TIMER13_IRMP(3) /*!< timer13 channel 0 input is connected to CKOUTSEL */
/* function declarations */
/* TIMER timebase*/
/* deinit a TIMER */
void timer_deinit(uint32_t timer_periph);
/* initialize TIMER init parameter struct */
void timer_struct_para_init(timer_parameter_struct* initpara);
/* initialize TIMER counter */
void timer_init(uint32_t timer_periph, timer_parameter_struct* initpara);
/* enable a TIMER */
void timer_enable(uint32_t timer_periph);
/* disable a TIMER */
void timer_disable(uint32_t timer_periph);
/* enable the auto reload shadow function */
void timer_auto_reload_shadow_enable(uint32_t timer_periph);
/* disable the auto reload shadow function */
void timer_auto_reload_shadow_disable(uint32_t timer_periph);
/* enable the update event */
void timer_update_event_enable(uint32_t timer_periph);
/* disable the update event */
void timer_update_event_disable(uint32_t timer_periph);
/* set TIMER counter alignment mode */
void timer_counter_alignment(uint32_t timer_periph, uint16_t aligned);
/* set TIMER counter up direction */
void timer_counter_up_direction(uint32_t timer_periph);
/* set TIMER counter down direction */
void timer_counter_down_direction(uint32_t timer_periph);
/* configure TIMER prescaler */
void timer_prescaler_config(uint32_t timer_periph, uint16_t prescaler, uint8_t pscreload);
/* configure TIMER repetition register value */
void timer_repetition_value_config(uint32_t timer_periph, uint16_t repetition);
/* configure TIMER autoreload register value */
void timer_autoreload_value_config(uint32_t timer_periph, uint16_t autoreload);
/* configure TIMER counter register value */
void timer_counter_value_config(uint32_t timer_periph , uint16_t counter);
/* read TIMER counter value */
uint32_t timer_counter_read(uint32_t timer_periph);
/* read TIMER prescaler value */
uint16_t timer_prescaler_read(uint32_t timer_periph);
/* configure TIMER single pulse mode */
void timer_single_pulse_mode_config(uint32_t timer_periph, uint32_t spmode);
/* configure TIMER update source */
void timer_update_source_config(uint32_t timer_periph, uint32_t update);
/* OCPRE clear source selection */
void timer_ocpre_clear_source_config(uint32_t timer_periph, uint8_t ocpreclear);
/* TIMER interrupt and flag*/
/* enable the TIMER interrupt */
void timer_interrupt_enable(uint32_t timer_periph, uint32_t interrupt);
/* disable the TIMER interrupt */
void timer_interrupt_disable(uint32_t timer_periph, uint32_t interrupt);
/* get timer interrupt flag */
FlagStatus timer_interrupt_flag_get(uint32_t timer_periph, uint32_t interrupt);
/* clear TIMER interrupt flag */
void timer_interrupt_flag_clear(uint32_t timer_periph, uint32_t interrupt);
/* get TIMER flags */
FlagStatus timer_flag_get(uint32_t timer_periph, uint32_t flag);
/* clear TIMER flags */
void timer_flag_clear(uint32_t timer_periph, uint32_t flag);
/* timer DMA and event*/
/* enable the TIMER DMA */
void timer_dma_enable(uint32_t timer_periph, uint16_t dma);
/* disable the TIMER DMA */
void timer_dma_disable(uint32_t timer_periph, uint16_t dma);
/* channel DMA request source selection */
void timer_channel_dma_request_source_select(uint32_t timer_periph, uint8_t dma_request);
/* configure the TIMER DMA transfer */
void timer_dma_transfer_config(uint32_t timer_periph,uint32_t dma_baseaddr, uint32_t dma_lenth);
/* software generate events */
void timer_event_software_generate(uint32_t timer_periph, uint16_t event);
/* TIMER channel complementary protection */
/* initialize TIMER break parameter struct */
void timer_break_struct_para_init(timer_break_parameter_struct* breakpara);
/* configure TIMER break function */
void timer_break_config(uint32_t timer_periph, timer_break_parameter_struct* breakpara);
/* enable TIMER break function */
void timer_break_enable(uint32_t timer_periph);
/* disable TIMER break function */
void timer_break_disable(uint32_t timer_periph);
/* enable TIMER output automatic function */
void timer_automatic_output_enable(uint32_t timer_periph);
/* disable TIMER output automatic function */
void timer_automatic_output_disable(uint32_t timer_periph);
/* enable or disable TIMER primary output function */
void timer_primary_output_config(uint32_t timer_periph, ControlStatus newvalue);
/* enable or disable channel capture/compare control shadow register */
void timer_channel_control_shadow_config(uint32_t timer_periph, ControlStatus newvalue);
/* configure TIMER channel control shadow register update control */
void timer_channel_control_shadow_update_config(uint32_t timer_periph, uint8_t ccuctl);
/* TIMER channel output */
/* initialize TIMER channel output parameter struct */
void timer_channel_output_struct_para_init(timer_oc_parameter_struct* ocpara);
/* configure TIMER channel output function */
void timer_channel_output_config(uint32_t timer_periph,uint16_t channel, timer_oc_parameter_struct* ocpara);
/* configure TIMER channel output compare mode */
void timer_channel_output_mode_config(uint32_t timer_periph, uint16_t channel,uint16_t ocmode);
/* configure TIMER channel output pulse value */
void timer_channel_output_pulse_value_config(uint32_t timer_periph, uint16_t channel, uint32_t pulse);
/* configure TIMER channel output shadow function */
void timer_channel_output_shadow_config(uint32_t timer_periph, uint16_t channel, uint16_t ocshadow);
/* configure TIMER channel output fast function */
void timer_channel_output_fast_config(uint32_t timer_periph, uint16_t channel, uint16_t ocfast);
/* configure TIMER channel output clear function */
void timer_channel_output_clear_config(uint32_t timer_periph,uint16_t channel,uint16_t occlear);
/* configure TIMER channel output polarity */
void timer_channel_output_polarity_config(uint32_t timer_periph, uint16_t channel, uint16_t ocpolarity);
/* configure TIMER channel complementary output polarity */
void timer_channel_complementary_output_polarity_config(uint32_t timer_periph, uint16_t channel, uint16_t ocnpolarity);
/* configure TIMER channel enable state */
void timer_channel_output_state_config(uint32_t timer_periph, uint16_t channel, uint32_t state);
/* configure TIMER channel complementary output enable state */
void timer_channel_complementary_output_state_config(uint32_t timer_periph, uint16_t channel, uint16_t ocnstate);
/* TIMER channel input */
/* initialize TIMER channel input parameter struct */
void timer_channel_input_struct_para_init(timer_ic_parameter_struct* icpara);
/* configure TIMER input capture parameter */
void timer_input_capture_config(uint32_t timer_periph, uint16_t channel, timer_ic_parameter_struct* icpara);
/* configure TIMER channel input capture prescaler value */
void timer_channel_input_capture_prescaler_config(uint32_t timer_periph, uint16_t channel, uint16_t prescaler);
/* read TIMER channel capture compare register value */
uint32_t timer_channel_capture_value_register_read(uint32_t timer_periph, uint16_t channel);
/* configure TIMER input pwm capture function */
void timer_input_pwm_capture_config(uint32_t timer_periph, uint16_t channel, timer_ic_parameter_struct* icpwm);
/* configure TIMER hall sensor mode */
void timer_hall_mode_config(uint32_t timer_periph, uint32_t hallmode);
/* TIMER master and slave */
/* select TIMER input trigger source */
void timer_input_trigger_source_select(uint32_t timer_periph, uint32_t intrigger);
/* select TIMER master mode output trigger source */
void timer_master_output_trigger_source_select(uint32_t timer_periph, uint32_t outrigger);
/* select TIMER slave mode */
void timer_slave_mode_select(uint32_t timer_periph,uint32_t slavemode);
/* configure TIMER master slave mode */
void timer_master_slave_mode_config(uint32_t timer_periph, uint32_t masterslave);
/* configure TIMER external trigger input */
void timer_external_trigger_config(uint32_t timer_periph, uint32_t extprescaler, uint32_t extpolarity, uint32_t extfilter);
/* configure TIMER quadrature decoder mode */
void timer_quadrature_decoder_mode_config(uint32_t timer_periph, uint32_t decomode, uint16_t ic0polarity, uint16_t ic1polarity);
/* configure TIMER internal clock mode */
void timer_internal_clock_config(uint32_t timer_periph);
/* configure TIMER the internal trigger as external clock input */
void timer_internal_trigger_as_external_clock_config(uint32_t timer_periph, uint32_t intrigger);
/* configure TIMER the external trigger as external clock input */
void timer_external_trigger_as_external_clock_config(uint32_t timer_periph, uint32_t extrigger, uint16_t extpolarity,uint32_t extfilter);
/* configure TIMER the external clock mode 0 */
void timer_external_clock_mode0_config(uint32_t timer_periph, uint32_t extprescaler, uint32_t extpolarity, uint32_t extfilter);
/* configure TIMER the external clock mode 1 */
void timer_external_clock_mode1_config(uint32_t timer_periph, uint32_t extprescaler, uint32_t extpolarity, uint32_t extfilter);
/* disable TIMER the external clock mode 1 */
void timer_external_clock_mode1_disable(uint32_t timer_periph);
/* configure TIMER channel remap function */
void timer_channel_remap_config(uint32_t timer_periph,uint32_t remap);
/* TIMER configure */
/* configure TIMER write CHxVAL register selection */
void timer_write_chxval_register_config(uint32_t timer_periph, uint16_t ccsel);
/* configure TIMER output value selection */
void timer_output_value_selection_config(uint32_t timer_periph, uint16_t outsel);
#endif /* GD32E23X_TIMER_H */

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/*!
\file gd32e23x_usart.h
\brief definitions for the USART
\version 2024-02-22, V2.1.0, firmware for GD32E23x
*/
/*
Copyright (c) 2024, GigaDevice Semiconductor Inc.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.
*/
#ifndef GD32E23X_USART_H
#define GD32E23X_USART_H
#include "gd32e23x.h"
/* USARTx(x=0,1) definitions */
#define USART0 (USART_BASE + 0x0000F400U)
#define USART1 USART_BASE
/* registers definitions */
#define USART_CTL0(usartx) REG32((usartx) + 0x00000000U) /*!< USART control register 0 */
#define USART_CTL1(usartx) REG32((usartx) + 0x00000004U) /*!< USART control register 1 */
#define USART_CTL2(usartx) REG32((usartx) + 0x00000008U) /*!< USART control register 2 */
#define USART_BAUD(usartx) REG32((usartx) + 0x0000000CU) /*!< USART baud rate register */
#define USART_GP(usartx) REG32((usartx) + 0x00000010U) /*!< USART guard time and prescaler register */
#define USART_RT(usartx) REG32((usartx) + 0x00000014U) /*!< USART receiver timeout register */
#define USART_CMD(usartx) REG32((usartx) + 0x00000018U) /*!< USART command register */
#define USART_STAT(usartx) REG32((usartx) + 0x0000001CU) /*!< USART status register */
#define USART_INTC(usartx) REG32((usartx) + 0x00000020U) /*!< USART status clear register */
#define USART_RDATA(usartx) REG32((usartx) + 0x00000024U) /*!< USART receive data register */
#define USART_TDATA(usartx) REG32((usartx) + 0x00000028U) /*!< USART transmit data register */
#define USART_CHC(usartx) REG32((usartx) + 0x000000C0U) /*!< USART coherence control register */
#define USART_RFCS(usartx) REG32((usartx) + 0x000000D0U) /*!< USART receive FIFO control and status register */
/* bits definitions */
/* USARTx_CTL0 */
#define USART_CTL0_UEN BIT(0) /*!< USART enable */
#define USART_CTL0_UESM BIT(1) /*!< USART enable in deep-sleep mode */
#define USART_CTL0_REN BIT(2) /*!< receiver enable */
#define USART_CTL0_TEN BIT(3) /*!< transmitter enable */
#define USART_CTL0_IDLEIE BIT(4) /*!< idle line detected interrupt enable */
#define USART_CTL0_RBNEIE BIT(5) /*!< read data buffer not empty interrupt and overrun error interrupt enable */
#define USART_CTL0_TCIE BIT(6) /*!< transmission complete interrupt enable */
#define USART_CTL0_TBEIE BIT(7) /*!< transmitter register empty interrupt enable */
#define USART_CTL0_PERRIE BIT(8) /*!< parity error interrupt enable */
#define USART_CTL0_PM BIT(9) /*!< parity mode */
#define USART_CTL0_PCEN BIT(10) /*!< parity control enable */
#define USART_CTL0_WM BIT(11) /*!< wakeup method in mute mode */
#define USART_CTL0_WL BIT(12) /*!< word length */
#define USART_CTL0_MEN BIT(13) /*!< mute mode enable */
#define USART_CTL0_AMIE BIT(14) /*!< address match interrupt enable */
#define USART_CTL0_OVSMOD BIT(15) /*!< oversample mode */
#define USART_CTL0_DED BITS(16,20) /*!< driver enable deassertion time */
#define USART_CTL0_DEA BITS(21,25) /*!< driver enable assertion time */
#define USART_CTL0_RTIE BIT(26) /*!< receiver timeout interrupt enable */
#define USART_CTL0_EBIE BIT(27) /*!< end of block interrupt enable */
/* USARTx_CTL1 */
#define USART_CTL1_ADDM BIT(4) /*!< address detection mode */
#define USART_CTL1_LBLEN BIT(5) /*!< LIN break frame length */
#define USART_CTL1_LBDIE BIT(6) /*!< LIN break detection interrupt enable */
#define USART_CTL1_CLEN BIT(8) /*!< last bit clock pulse */
#define USART_CTL1_CPH BIT(9) /*!< clock phase */
#define USART_CTL1_CPL BIT(10) /*!< clock polarity */
#define USART_CTL1_CKEN BIT(11) /*!< ck pin enable */
#define USART_CTL1_STB BITS(12,13) /*!< stop bits length */
#define USART_CTL1_LMEN BIT(14) /*!< LIN mode enable */
#define USART_CTL1_STRP BIT(15) /*!< swap TX/RX pins */
#define USART_CTL1_RINV BIT(16) /*!< RX pin level inversion */
#define USART_CTL1_TINV BIT(17) /*!< TX pin level inversion */
#define USART_CTL1_DINV BIT(18) /*!< data bit level inversion */
#define USART_CTL1_MSBF BIT(19) /*!< most significant bit first */
#define USART_CTL1_RTEN BIT(23) /*!< receiver timeout enable */
#define USART_CTL1_ADDR BITS(24,31) /*!< address of the USART terminal */
/* USARTx_CTL2 */
#define USART_CTL2_ERRIE BIT(0) /*!< error interrupt enable in multibuffer communication */
#define USART_CTL2_IREN BIT(1) /*!< IrDA mode enable */
#define USART_CTL2_IRLP BIT(2) /*!< IrDA low-power */
#define USART_CTL2_HDEN BIT(3) /*!< half-duplex enable */
#define USART_CTL2_NKEN BIT(4) /*!< NACK enable in smartcard mode */
#define USART_CTL2_SCEN BIT(5) /*!< smartcard mode enable */
#define USART_CTL2_DENR BIT(6) /*!< DMA enable for reception */
#define USART_CTL2_DENT BIT(7) /*!< DMA enable for transmission */
#define USART_CTL2_RTSEN BIT(8) /*!< RTS enable */
#define USART_CTL2_CTSEN BIT(9) /*!< CTS enable */
#define USART_CTL2_CTSIE BIT(10) /*!< CTS interrupt enable */
#define USART_CTL2_OSB BIT(11) /*!< one sample bit mode */
#define USART_CTL2_OVRD BIT(12) /*!< overrun disable */
#define USART_CTL2_DDRE BIT(13) /*!< disable DMA on reception error */
#define USART_CTL2_DEM BIT(14) /*!< driver enable mode */
#define USART_CTL2_DEP BIT(15) /*!< driver enable polarity mode */
#define USART_CTL2_SCRTNUM BITS(17,19) /*!< smartcard auto-retry number */
#define USART_CTL2_WUM BITS(20,21) /*!< wakeup mode from deep-sleep mode */
#define USART_CTL2_WUIE BIT(22) /*!< wakeup from deep-sleep mode interrupt enable */
/* USARTx_BAUD */
#define USART_BAUD_FRADIV BITS(0,3) /*!< fraction of baud-rate divider */
#define USART_BAUD_INTDIV BITS(4,15) /*!< integer of baud-rate divider */
/* USARTx_GP */
#define USART_GP_PSC BITS(0,7) /*!< prescaler value for dividing the system clock */
#define USART_GP_GUAT BITS(8,15) /*!< guard time value in smartcard mode */
/* USARTx_RT */
#define USART_RT_RT BITS(0,23) /*!< receiver timeout threshold */
#define USART_RT_BL BITS(24,31) /*!< block length */
/* USARTx_CMD */
#define USART_CMD_SBKCMD BIT(1) /*!< send break command */
#define USART_CMD_MMCMD BIT(2) /*!< mute mode command */
#define USART_CMD_RXFCMD BIT(3) /*!< receive data flush command */
#define USART_CMD_TXFCMD BIT(4) /*!< transmit data flush request */
/* USARTx_STAT */
#define USART_STAT_PERR BIT(0) /*!< parity error flag */
#define USART_STAT_FERR BIT(1) /*!< frame error flag */
#define USART_STAT_NERR BIT(2) /*!< noise error flag */
#define USART_STAT_ORERR BIT(3) /*!< overrun error */
#define USART_STAT_IDLEF BIT(4) /*!< idle line detected flag */
#define USART_STAT_RBNE BIT(5) /*!< read data buffer not empty */
#define USART_STAT_TC BIT(6) /*!< transmission completed */
#define USART_STAT_TBE BIT(7) /*!< transmit data register empty */
#define USART_STAT_LBDF BIT(8) /*!< LIN break detected flag */
#define USART_STAT_CTSF BIT(9) /*!< CTS change flag */
#define USART_STAT_CTS BIT(10) /*!< CTS level */
#define USART_STAT_RTF BIT(11) /*!< receiver timeout flag */
#define USART_STAT_EBF BIT(12) /*!< end of block flag */
#define USART_STAT_BSY BIT(16) /*!< busy flag */
#define USART_STAT_AMF BIT(17) /*!< address match flag */
#define USART_STAT_SBF BIT(18) /*!< send break flag */
#define USART_STAT_RWU BIT(19) /*!< receiver wakeup from mute mode */
#define USART_STAT_WUF BIT(20) /*!< wakeup from deep-sleep mode flag */
#define USART_STAT_TEA BIT(21) /*!< transmit enable acknowledge flag */
#define USART_STAT_REA BIT(22) /*!< receive enable acknowledge flag */
/* USARTx_INTC */
#define USART_INTC_PEC BIT(0) /*!< parity error clear */
#define USART_INTC_FEC BIT(1) /*!< frame error flag clear */
#define USART_INTC_NEC BIT(2) /*!< noise detected clear */
#define USART_INTC_OREC BIT(3) /*!< overrun error clear */
#define USART_INTC_IDLEC BIT(4) /*!< idle line detected clear */
#define USART_INTC_TCC BIT(6) /*!< transmission complete clear */
#define USART_INTC_LBDC BIT(8) /*!< LIN break detected clear */
#define USART_INTC_CTSC BIT(9) /*!< CTS change clear */
#define USART_INTC_RTC BIT(11) /*!< receiver timeout clear */
#define USART_INTC_EBC BIT(12) /*!< end of timeout clear */
#define USART_INTC_AMC BIT(17) /*!< address match clear */
#define USART_INTC_WUC BIT(20) /*!< wakeup from deep-sleep mode clear */
/* USARTx_RDATA */
#define USART_RDATA_RDATA BITS(0,8) /*!< receive data value */
/* USARTx_TDATA */
#define USART_TDATA_TDATA BITS(0,8) /*!< transmit data value */
/* USARTx_CHC */
#define USART_CHC_HCM BIT(0) /*!< hardware flow control coherence mode */
#define USART_CHC_EPERR BIT(8) /*!< early parity error flag */
/* USARTx_RFCS */
#define USART_RFCS_ELNACK BIT(0) /*!< early NACK */
#define USART_RFCS_RFEN BIT(8) /*!< receive FIFO enable */
#define USART_RFCS_RFFIE BIT(9) /*!< receive FIFO full interrupt enable */
#define USART_RFCS_RFE BIT(10) /*!< receive FIFO empty flag */
#define USART_RFCS_RFF BIT(11) /*!< receive FIFO full flag */
#define USART_RFCS_RFCNT BITS(12,14) /*!< receive FIFO counter number */
#define USART_RFCS_RFFINT BIT(15) /*!< receive FIFO full interrupt flag */
/* constants definitions */
/* define the USART bit position and its register index offset */
#define USART_REGIDX_BIT(regidx, bitpos) (((uint32_t)(regidx) << 6) | (uint32_t)(bitpos))
#define USART_REG_VAL(usartx, offset) (REG32((usartx) + (((uint32_t)(offset) & 0x0000FFFFU) >> 6)))
#define USART_BIT_POS(val) ((uint32_t)(val) & 0x0000001FU)
#define USART_REGIDX_BIT2(regidx, bitpos, regidx2, bitpos2) (((uint32_t)(regidx2) << 22) | (uint32_t)((bitpos2) << 16)\
| (((uint32_t)(regidx) << 6) | (uint32_t)(bitpos)))
#define USART_REG_VAL2(usartx, offset) (REG32((usartx) + ((uint32_t)(offset) >> 22)))
#define USART_BIT_POS2(val) (((uint32_t)(val) & 0x001F0000U) >> 16)
/* register offset */
#define USART_CTL0_REG_OFFSET 0x00000000U /*!< CTL0 register offset */
#define USART_CTL1_REG_OFFSET 0x00000004U /*!< CTL1 register offset */
#define USART_CTL2_REG_OFFSET 0x00000008U /*!< CTL2 register offset */
#define USART_STAT_REG_OFFSET 0x0000001CU /*!< STAT register offset */
#define USART_CHC_REG_OFFSET 0x000000C0U /*!< CHC register offset */
#define USART_RFCS_REG_OFFSET 0x000000D0U /*!< RFCS register offset */
/* USART flags */
typedef enum{
/* flags in STAT register */
USART_FLAG_REA = USART_REGIDX_BIT(USART_STAT_REG_OFFSET, 22U), /*!< receive enable acknowledge flag */
USART_FLAG_TEA = USART_REGIDX_BIT(USART_STAT_REG_OFFSET, 21U), /*!< transmit enable acknowledge flag */
USART_FLAG_WU = USART_REGIDX_BIT(USART_STAT_REG_OFFSET, 20U), /*!< wakeup from Deep-sleep mode flag */
USART_FLAG_RWU = USART_REGIDX_BIT(USART_STAT_REG_OFFSET, 19U), /*!< receiver wakeup from mute mode */
USART_FLAG_SB = USART_REGIDX_BIT(USART_STAT_REG_OFFSET, 18U), /*!< send break flag */
USART_FLAG_AM = USART_REGIDX_BIT(USART_STAT_REG_OFFSET, 17U), /*!< ADDR match flag */
USART_FLAG_BSY = USART_REGIDX_BIT(USART_STAT_REG_OFFSET, 16U), /*!< busy flag */
USART_FLAG_EB = USART_REGIDX_BIT(USART_STAT_REG_OFFSET, 12U), /*!< end of block flag */
USART_FLAG_RT = USART_REGIDX_BIT(USART_STAT_REG_OFFSET, 11U), /*!< receiver timeout flag */
USART_FLAG_CTS = USART_REGIDX_BIT(USART_STAT_REG_OFFSET, 10U), /*!< CTS level */
USART_FLAG_CTSF = USART_REGIDX_BIT(USART_STAT_REG_OFFSET, 9U), /*!< CTS change flag */
USART_FLAG_LBD = USART_REGIDX_BIT(USART_STAT_REG_OFFSET, 8U), /*!< LIN break detected flag */
USART_FLAG_TBE = USART_REGIDX_BIT(USART_STAT_REG_OFFSET, 7U), /*!< transmit data buffer empty */
USART_FLAG_TC = USART_REGIDX_BIT(USART_STAT_REG_OFFSET, 6U), /*!< transmission complete */
USART_FLAG_RBNE = USART_REGIDX_BIT(USART_STAT_REG_OFFSET, 5U), /*!< read data buffer not empty */
USART_FLAG_IDLE = USART_REGIDX_BIT(USART_STAT_REG_OFFSET, 4U), /*!< IDLE line detected flag */
USART_FLAG_ORERR = USART_REGIDX_BIT(USART_STAT_REG_OFFSET, 3U), /*!< overrun error */
USART_FLAG_NERR = USART_REGIDX_BIT(USART_STAT_REG_OFFSET, 2U), /*!< noise error flag */
USART_FLAG_FERR = USART_REGIDX_BIT(USART_STAT_REG_OFFSET, 1U), /*!< frame error flag */
USART_FLAG_PERR = USART_REGIDX_BIT(USART_STAT_REG_OFFSET, 0U), /*!< parity error flag */
/* flags in CHC register */
USART_FLAG_EPERR = USART_REGIDX_BIT(USART_CHC_REG_OFFSET, 8U), /*!< early parity error flag */
/* flags in RFCS register */
USART_FLAG_RFFINT = USART_REGIDX_BIT(USART_RFCS_REG_OFFSET, 15U), /*!< receive FIFO full interrupt flag */
USART_FLAG_RFF = USART_REGIDX_BIT(USART_RFCS_REG_OFFSET, 11U), /*!< receive FIFO full flag */
USART_FLAG_RFE = USART_REGIDX_BIT(USART_RFCS_REG_OFFSET, 10U), /*!< receive FIFO empty flag */
}usart_flag_enum;
/* USART interrupt flags */
typedef enum
{
/* interrupt flags in CTL0 register */
USART_INT_FLAG_EB = USART_REGIDX_BIT2(USART_CTL0_REG_OFFSET, 27U, USART_STAT_REG_OFFSET, 12U), /*!< end of block interrupt and flag */
USART_INT_FLAG_RT = USART_REGIDX_BIT2(USART_CTL0_REG_OFFSET, 26U, USART_STAT_REG_OFFSET, 11U), /*!< receiver timeout interrupt and flag */
USART_INT_FLAG_AM = USART_REGIDX_BIT2(USART_CTL0_REG_OFFSET, 14U, USART_STAT_REG_OFFSET, 17U), /*!< address match interrupt and flag */
USART_INT_FLAG_PERR = USART_REGIDX_BIT2(USART_CTL0_REG_OFFSET, 8U, USART_STAT_REG_OFFSET, 0U), /*!< parity error interrupt and flag */
USART_INT_FLAG_TBE = USART_REGIDX_BIT2(USART_CTL0_REG_OFFSET, 7U, USART_STAT_REG_OFFSET, 7U), /*!< transmitter buffer empty interrupt and flag */
USART_INT_FLAG_TC = USART_REGIDX_BIT2(USART_CTL0_REG_OFFSET, 6U, USART_STAT_REG_OFFSET, 6U), /*!< transmission complete interrupt and flag */
USART_INT_FLAG_RBNE = USART_REGIDX_BIT2(USART_CTL0_REG_OFFSET, 5U, USART_STAT_REG_OFFSET, 5U), /*!< read data buffer not empty interrupt and flag */
USART_INT_FLAG_RBNE_ORERR = USART_REGIDX_BIT2(USART_CTL0_REG_OFFSET, 5U, USART_STAT_REG_OFFSET, 3U), /*!< read data buffer not empty interrupt and overrun error flag */
USART_INT_FLAG_IDLE = USART_REGIDX_BIT2(USART_CTL0_REG_OFFSET, 4U, USART_STAT_REG_OFFSET, 4U), /*!< IDLE line detected interrupt and flag */
/* interrupt flags in CTL1 register */
USART_INT_FLAG_LBD = USART_REGIDX_BIT2(USART_CTL1_REG_OFFSET, 6U, USART_STAT_REG_OFFSET, 8U), /*!< LIN break detected interrupt and flag */
/* interrupt flags in CTL2 register */
USART_INT_FLAG_WU = USART_REGIDX_BIT2(USART_CTL2_REG_OFFSET, 22U, USART_STAT_REG_OFFSET, 20U), /*!< wakeup from deep-sleep mode interrupt and flag */
USART_INT_FLAG_CTS = USART_REGIDX_BIT2(USART_CTL2_REG_OFFSET, 10U, USART_STAT_REG_OFFSET, 9U), /*!< CTS interrupt and flag */
USART_INT_FLAG_ERR_NERR = USART_REGIDX_BIT2(USART_CTL2_REG_OFFSET, 0U, USART_STAT_REG_OFFSET, 2U), /*!< error interrupt and noise error flag */
USART_INT_FLAG_ERR_ORERR = USART_REGIDX_BIT2(USART_CTL2_REG_OFFSET, 0U, USART_STAT_REG_OFFSET, 3U), /*!< error interrupt and overrun error */
USART_INT_FLAG_ERR_FERR = USART_REGIDX_BIT2(USART_CTL2_REG_OFFSET, 0U, USART_STAT_REG_OFFSET, 1U), /*!< error interrupt and frame error flag */
/* interrupt flags in RFCS register */
USART_INT_FLAG_RFF = USART_REGIDX_BIT2(USART_RFCS_REG_OFFSET, 9U, USART_RFCS_REG_OFFSET, 15U), /*!< receive FIFO full interrupt and flag */
}usart_interrupt_flag_enum;
/* USART interrupt enable or disable */
typedef enum
{
/* interrupt in CTL0 register */
USART_INT_EB = USART_REGIDX_BIT(USART_CTL0_REG_OFFSET, 27U), /*!< end of block interrupt */
USART_INT_RT = USART_REGIDX_BIT(USART_CTL0_REG_OFFSET, 26U), /*!< receiver timeout interrupt */
USART_INT_AM = USART_REGIDX_BIT(USART_CTL0_REG_OFFSET, 14U), /*!< address match interrupt */
USART_INT_PERR = USART_REGIDX_BIT(USART_CTL0_REG_OFFSET, 8U), /*!< parity error interrupt */
USART_INT_TBE = USART_REGIDX_BIT(USART_CTL0_REG_OFFSET, 7U), /*!< transmitter buffer empty interrupt */
USART_INT_TC = USART_REGIDX_BIT(USART_CTL0_REG_OFFSET, 6U), /*!< transmission complete interrupt */
USART_INT_RBNE = USART_REGIDX_BIT(USART_CTL0_REG_OFFSET, 5U), /*!< read data buffer not empty interrupt and overrun error interrupt */
USART_INT_IDLE = USART_REGIDX_BIT(USART_CTL0_REG_OFFSET, 4U), /*!< IDLE line detected interrupt */
/* interrupt in CTL1 register */
USART_INT_LBD = USART_REGIDX_BIT(USART_CTL1_REG_OFFSET, 6U), /*!< LIN break detected interrupt */
/* interrupt in CTL2 register */
USART_INT_WU = USART_REGIDX_BIT(USART_CTL2_REG_OFFSET, 22U), /*!< wakeup from deep-sleep mode interrupt */
USART_INT_CTS = USART_REGIDX_BIT(USART_CTL2_REG_OFFSET, 10U), /*!< CTS interrupt */
USART_INT_ERR = USART_REGIDX_BIT(USART_CTL2_REG_OFFSET, 0U), /*!< error interrupt */
/* interrupt in RFCS register */
USART_INT_RFF = USART_REGIDX_BIT(USART_RFCS_REG_OFFSET, 9U), /*!< receive FIFO full interrupt */
}usart_interrupt_enum;
/* USART invert configure */
typedef enum {
/* data bit level inversion */
USART_DINV_ENABLE, /*!< data bit level inversion */
USART_DINV_DISABLE, /*!< data bit level not inversion */
/* TX pin level inversion */
USART_TXPIN_ENABLE, /*!< TX pin level inversion */
USART_TXPIN_DISABLE, /*!< TX pin level not inversion */
/* RX pin level inversion */
USART_RXPIN_ENABLE, /*!< RX pin level inversion */
USART_RXPIN_DISABLE, /*!< RX pin level not inversion */
/* swap TX/RX pins */
USART_SWAP_ENABLE, /*!< swap TX/RX pins */
USART_SWAP_DISABLE, /*!< not swap TX/RX pins */
}usart_invert_enum;
/* USART receiver configure */
#define CTL0_REN(regval) (BIT(2) & ((uint32_t)(regval) << 2))
#define USART_RECEIVE_ENABLE CTL0_REN(1) /*!< enable receiver */
#define USART_RECEIVE_DISABLE CTL0_REN(0) /*!< disable receiver */
/* USART transmitter configure */
#define CTL0_TEN(regval) (BIT(3) & ((uint32_t)(regval) << 3))
#define USART_TRANSMIT_ENABLE CTL0_TEN(1) /*!< enable transmitter */
#define USART_TRANSMIT_DISABLE CTL0_TEN(0) /*!< disable transmitter */
/* USART parity bits definitions */
#define CTL0_PM(regval) (BITS(9,10) & ((uint32_t)(regval) << 9))
#define USART_PM_NONE CTL0_PM(0) /*!< no parity */
#define USART_PM_EVEN CTL0_PM(2) /*!< even parity */
#define USART_PM_ODD CTL0_PM(3) /*!< odd parity */
/* USART wakeup method in mute mode */
#define CTL0_WM(regval) (BIT(11) & ((uint32_t)(regval) << 11))
#define USART_WM_IDLE CTL0_WM(0) /*!< idle line */
#define USART_WM_ADDR CTL0_WM(1) /*!< address match */
/* USART word length definitions */
#define CTL0_WL(regval) (BIT(12) & ((uint32_t)(regval) << 12))
#define USART_WL_8BIT CTL0_WL(0) /*!< 8 bits */
#define USART_WL_9BIT CTL0_WL(1) /*!< 9 bits */
/* USART oversample mode */
#define CTL0_OVSMOD(regval) (BIT(15) & ((uint32_t)(regval) << 15))
#define USART_OVSMOD_8 CTL0_OVSMOD(1) /*!< oversampling by 8 */
#define USART_OVSMOD_16 CTL0_OVSMOD(0) /*!< oversampling by 16 */
/* USART address detection mode */
#define CTL1_ADDM(regval) (BIT(4) & ((uint32_t)(regval) << 4))
#define USART_ADDM_4BIT CTL1_ADDM(0) /*!< 4-bit address detection */
#define USART_ADDM_FULLBIT CTL1_ADDM(1) /*!< full-bit address detection */
/* USART LIN break frame length */
#define CTL1_LBLEN(regval) (BIT(5) & ((uint32_t)(regval) << 5))
#define USART_LBLEN_10B CTL1_LBLEN(0) /*!< 10 bits break detection */
#define USART_LBLEN_11B CTL1_LBLEN(1) /*!< 11 bits break detection */
/* USART last bit clock pulse */
#define CTL1_CLEN(regval) (BIT(8) & ((uint32_t)(regval) << 8))
#define USART_CLEN_NONE CTL1_CLEN(0) /*!< clock pulse of the last data bit (MSB) is not output to the CK pin */
#define USART_CLEN_EN CTL1_CLEN(1) /*!< clock pulse of the last data bit (MSB) is output to the CK pin */
/* USART clock phase */
#define CTL1_CPH(regval) (BIT(9) & ((uint32_t)(regval) << 9))
#define USART_CPH_1CK CTL1_CPH(0) /*!< first clock transition is the first data capture edge */
#define USART_CPH_2CK CTL1_CPH(1) /*!< second clock transition is the first data capture edge */
/* USART clock polarity */
#define CTL1_CPL(regval) (BIT(10) & ((uint32_t)(regval) << 10))
#define USART_CPL_LOW CTL1_CPL(0) /*!< steady low value on CK pin */
#define USART_CPL_HIGH CTL1_CPL(1) /*!< steady high value on CK pin */
/* USART stop bits definitions */
#define CTL1_STB(regval) (BITS(12,13) & ((uint32_t)(regval) << 12))
#define USART_STB_1BIT CTL1_STB(0) /*!< 1 bit */
#define USART_STB_0_5BIT CTL1_STB(1) /*!< 0.5 bit */
#define USART_STB_2BIT CTL1_STB(2) /*!< 2 bits */
#define USART_STB_1_5BIT CTL1_STB(3) /*!< 1.5 bits */
/* USART data is transmitted/received with the LSB/MSB first */
#define CTL1_MSBF(regval) (BIT(19) & ((uint32_t)(regval) << 19))
#define USART_MSBF_LSB CTL1_MSBF(0) /*!< LSB first */
#define USART_MSBF_MSB CTL1_MSBF(1) /*!< MSB first */
/* USART IrDA low-power enable */
#define CTL2_IRLP(regval) (BIT(2) & ((uint32_t)(regval) << 2))
#define USART_IRLP_LOW CTL2_IRLP(1) /*!< low-power */
#define USART_IRLP_NORMAL CTL2_IRLP(0) /*!< normal */
/* DMA enable for reception */
#define CTL2_DENR(regval) (BIT(6) & ((uint32_t)(regval) << 6))
#define USART_DENR_ENABLE CTL2_DENR(1) /*!< enable for reception */
#define USART_DENR_DISABLE CTL2_DENR(0) /*!< disable for reception */
/* DMA enable for transmission */
#define CTL2_DENT(regval) (BIT(7) & ((uint32_t)(regval) << 7))
#define USART_DENT_ENABLE CTL2_DENT(1) /*!< enable for transmission */
#define USART_DENT_DISABLE CTL2_DENT(0) /*!< disable for transmission */
/* USART RTS hardware flow control configure */
#define CTL2_RTSEN(regval) (BIT(8) & ((uint32_t)(regval) << 8))
#define USART_RTS_ENABLE CTL2_RTSEN(1) /*!< RTS hardware flow control enabled */
#define USART_RTS_DISABLE CTL2_RTSEN(0) /*!< RTS hardware flow control disabled */
/* USART CTS hardware flow control configure */
#define CTL2_CTSEN(regval) (BIT(9) & ((uint32_t)(regval) << 9))
#define USART_CTS_ENABLE CTL2_CTSEN(1) /*!< CTS hardware flow control enabled */
#define USART_CTS_DISABLE CTL2_CTSEN(0) /*!< CTS hardware flow control disabled */
/* USART one sample bit method configure */
#define CTL2_OSB(regval) (BIT(11) & ((uint32_t)(regval) << 11))
#define USART_OSB_1BIT CTL2_OSB(1) /*!< 1 sample bit */
#define USART_OSB_3BIT CTL2_OSB(0) /*!< 3 sample bits */
/* USART driver enable polarity mode */
#define CTL2_DEP(regval) (BIT(15) & ((uint32_t)(regval) << 15))
#define USART_DEP_HIGH CTL2_DEP(0) /*!< DE signal is active high */
#define USART_DEP_LOW CTL2_DEP(1) /*!< DE signal is active low */
/* USART wakeup mode from deep-sleep mode */
#define CTL2_WUM(regval) (BITS(20,21) & ((uint32_t)(regval) << 20))
#define USART_WUM_ADDR CTL2_WUM(0) /*!< WUF active on address match */
#define USART_WUM_STARTB CTL2_WUM(2) /*!< WUF active on start bit */
#define USART_WUM_RBNE CTL2_WUM(3) /*!< WUF active on RBNE */
/* USART hardware flow control coherence mode */
#define CHC_HCM(regval) (BIT(0) & ((uint32_t)(regval) << 0))
#define USART_HCM_NONE CHC_HCM(0) /*!< nRTS signal equals to the rxne status register */
#define USART_HCM_EN CHC_HCM(1) /*!< nRTS signal is set when the last data bit has been sampled */
/* function declarations */
/* initialization functions */
/* reset USART */
void usart_deinit(uint32_t usart_periph);
/* configure USART baud rate value */
void usart_baudrate_set(uint32_t usart_periph, uint32_t baudval);
/* configure USART parity function */
void usart_parity_config(uint32_t usart_periph, uint32_t paritycfg);
/* configure USART word length */
void usart_word_length_set(uint32_t usart_periph, uint32_t wlen);
/* configure USART stop bit length */
void usart_stop_bit_set(uint32_t usart_periph, uint32_t stblen);
/* enable USART */
void usart_enable(uint32_t usart_periph);
/* disable USART */
void usart_disable(uint32_t usart_periph);
/* configure USART transmitter */
void usart_transmit_config(uint32_t usart_periph, uint32_t txconfig);
/* configure USART receiver */
void usart_receive_config(uint32_t usart_periph, uint32_t rxconfig);
/* USART normal mode communication */
/* data is transmitted/received with the LSB/MSB first */
void usart_data_first_config(uint32_t usart_periph, uint32_t msbf);
/* configure USART inverted */
void usart_invert_config(uint32_t usart_periph, usart_invert_enum invertpara);
/* enable the USART overrun function */
void usart_overrun_enable(uint32_t usart_periph);
/* disable the USART overrun function */
void usart_overrun_disable(uint32_t usart_periph);
/* configure the USART oversample mode */
void usart_oversample_config(uint32_t usart_periph, uint32_t oversamp);
/* configure sample bit method */
void usart_sample_bit_config(uint32_t usart_periph, uint32_t osb);
/* enable receiver timeout */
void usart_receiver_timeout_enable(uint32_t usart_periph);
/* disable receiver timeout */
void usart_receiver_timeout_disable(uint32_t usart_periph);
/* configure receiver timeout threshold */
void usart_receiver_timeout_threshold_config(uint32_t usart_periph, uint32_t rtimeout);
/* USART transmit data function */
void usart_data_transmit(uint32_t usart_periph, uint32_t data);
/* USART receive data function */
uint16_t usart_data_receive(uint32_t usart_periph);
/* multi-processor communication */
/* configure address of the USART */
void usart_address_config(uint32_t usart_periph, uint8_t addr);
/* configure address detection mode */
void usart_address_detection_mode_config(uint32_t usart_periph, uint32_t addmod);
/* enable mute mode */
void usart_mute_mode_enable(uint32_t usart_periph);
/* disable mute mode */
void usart_mute_mode_disable(uint32_t usart_periph);
/* configure wakeup method in mute mode */
void usart_mute_mode_wakeup_config(uint32_t usart_periph, uint32_t wmethod);
/* LIN mode communication */
/* enable LIN mode */
void usart_lin_mode_enable(uint32_t usart_periph);
/* disable LIN mode */
void usart_lin_mode_disable(uint32_t usart_periph);
/* LIN break detection length */
void usart_lin_break_detection_length_config(uint32_t usart_periph, uint32_t lblen);
/* half-duplex communication */
/* enable half-duplex mode */
void usart_halfduplex_enable(uint32_t usart_periph);
/* disable half-duplex mode */
void usart_halfduplex_disable(uint32_t usart_periph);
/* synchronous communication */
/* enable clock */
void usart_clock_enable(uint32_t usart_periph);
/* disable clock */
void usart_clock_disable(uint32_t usart_periph);
/* configure USART synchronous mode parameters */
void usart_synchronous_clock_config(uint32_t usart_periph, uint32_t clen, uint32_t cph, uint32_t cpl);
/* smartcard communication */
/* configure guard time value in smartcard mode */
void usart_guard_time_config(uint32_t usart_periph, uint32_t guat);
/* enable smartcard mode */
void usart_smartcard_mode_enable(uint32_t usart_periph);
/* disable smartcard mode */
void usart_smartcard_mode_disable(uint32_t usart_periph);
/* enable NACK in smartcard mode */
void usart_smartcard_mode_nack_enable(uint32_t usart_periph);
/* disable NACK in smartcard mode */
void usart_smartcard_mode_nack_disable(uint32_t usart_periph);
/* enable early NACK in smartcard mode */
void usart_smartcard_mode_early_nack_enable(uint32_t usart_periph);
/* disable early NACK in smartcard mode */
void usart_smartcard_mode_early_nack_disable(uint32_t usart_periph);
/* configure smartcard auto-retry number */
void usart_smartcard_autoretry_config(uint32_t usart_periph, uint32_t scrtnum);
/* configure block length */
void usart_block_length_config(uint32_t usart_periph, uint32_t bl);
/* IrDA communication */
/* enable IrDA mode */
void usart_irda_mode_enable(uint32_t usart_periph);
/* disable IrDA mode */
void usart_irda_mode_disable(uint32_t usart_periph);
/* configure the peripheral clock prescaler */
void usart_prescaler_config(uint32_t usart_periph, uint32_t psc);
/* configure IrDA low-power */
void usart_irda_lowpower_config(uint32_t usart_periph, uint32_t irlp);
/* hardware flow communication */
/* configure hardware flow control RTS */
void usart_hardware_flow_rts_config(uint32_t usart_periph, uint32_t rtsconfig);
/* configure hardware flow control CTS */
void usart_hardware_flow_cts_config(uint32_t usart_periph, uint32_t ctsconfig);
/* coherence control */
/* configure hardware flow control coherence mode */
void usart_hardware_flow_coherence_config(uint32_t usart_periph, uint32_t hcm);
/* enable RS485 driver */
void usart_rs485_driver_enable(uint32_t usart_periph);
/* disable RS485 driver */
void usart_rs485_driver_disable(uint32_t usart_periph);
/* configure driver enable assertion time */
void usart_driver_assertime_config(uint32_t usart_periph, uint32_t deatime);
/* configure driver enable de-assertion time */
void usart_driver_deassertime_config(uint32_t usart_periph, uint32_t dedtime);
/* configure driver enable polarity mode */
void usart_depolarity_config(uint32_t usart_periph, uint32_t dep);
/* USART DMA */
/* configure USART DMA for reception */
void usart_dma_receive_config(uint32_t usart_periph, uint32_t dmacmd);
/* configure USART DMA for transmission */
void usart_dma_transmit_config(uint32_t usart_periph, uint32_t dmacmd);
/* disable DMA on reception error */
void usart_reception_error_dma_disable(uint32_t usart_periph);
/* enable DMA on reception error */
void usart_reception_error_dma_enable(uint32_t usart_periph);
/* enable USART to wakeup the mcu from deep-sleep mode */
void usart_wakeup_enable(uint32_t usart_periph);
/* disable USART to wakeup the mcu from deep-sleep mode */
void usart_wakeup_disable(uint32_t usart_periph);
/* configure the USART wakeup mode from deep-sleep mode */
void usart_wakeup_mode_config(uint32_t usart_periph, uint32_t wum);
/* USART receive FIFO */
/* enable receive FIFO */
void usart_receive_fifo_enable(uint32_t usart_periph);
/* disable receive FIFO */
void usart_receive_fifo_disable(uint32_t usart_periph);
/* read receive FIFO counter number */
uint8_t usart_receive_fifo_counter_number(uint32_t usart_periph);
/* flag & interrupt functions */
/* get flag in STAT/RFCS register */
FlagStatus usart_flag_get(uint32_t usart_periph, usart_flag_enum flag);
/* clear USART status */
void usart_flag_clear(uint32_t usart_periph, usart_flag_enum flag);
/* enable USART interrupt */
void usart_interrupt_enable(uint32_t usart_periph, usart_interrupt_enum interrupt);
/* disable USART interrupt */
void usart_interrupt_disable(uint32_t usart_periph, usart_interrupt_enum interrupt);
/* enable USART command */
void usart_command_enable(uint32_t usart_periph, uint32_t cmdtype);
/* get USART interrupt and flag status */
FlagStatus usart_interrupt_flag_get(uint32_t usart_periph, usart_interrupt_flag_enum int_flag);
/* clear USART interrupt flag */
void usart_interrupt_flag_clear(uint32_t usart_periph, usart_interrupt_flag_enum flag);
#endif /* GD32E23X_USART_H */

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/*!
\file gd32e23x_wwdgt.h
\brief definitions for the WWDGT
\version 2024-02-22, V2.1.0, firmware for GD32E23x
*/
/*
Copyright (c) 2024, GigaDevice Semiconductor Inc.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.
*/
#ifndef GD32E23X_WWDGT_H
#define GD32E23X_WWDGT_H
#include "gd32e23x.h"
/* WWDGT definitions */
#define WWDGT WWDGT_BASE
/* registers definitions */
#define WWDGT_CTL REG32((WWDGT) + 0x00000000U) /*!< WWDGT control register */
#define WWDGT_CFG REG32((WWDGT) + 0x00000004U) /*!< WWDGT configuration register */
#define WWDGT_STAT REG32((WWDGT) + 0x00000008U) /*!< WWDGT status register */
/* bits definitions */
/* WWDGT_CTL */
#define WWDGT_CTL_CNT BITS(0,6) /*!< WWDGT counter value */
#define WWDGT_CTL_WDGTEN BIT(7) /*!< WWDGT counter enable */
/* WWDGT_CFG */
#define WWDGT_CFG_WIN BITS(0,6) /*!< WWDGT counter window value */
#define WWDGT_CFG_PSC BITS(7,8) /*!< WWDGT prescaler divider value */
#define WWDGT_CFG_EWIE BIT(9) /*!< WWDGT early wakeup interrupt enable */
/* WWDGT_STAT */
#define WWDGT_STAT_EWIF BIT(0) /*!< WWDGT early wakeup interrupt flag */
/* constants definitions */
#define CFG_PSC(regval) (BITS(7,8) & ((uint32_t)(regval) << 7U)) /*!< write value to WWDGT_CFG_PSC bit field */
#define WWDGT_CFG_PSC_DIV1 ((uint32_t)CFG_PSC(0)) /*!< the time base of WWDGT = (PCLK1/4096)/1 */
#define WWDGT_CFG_PSC_DIV2 ((uint32_t)CFG_PSC(1)) /*!< the time base of WWDGT = (PCLK1/4096)/2 */
#define WWDGT_CFG_PSC_DIV4 ((uint32_t)CFG_PSC(2)) /*!< the time base of WWDGT = (PCLK1/4096)/4 */
#define WWDGT_CFG_PSC_DIV8 ((uint32_t)CFG_PSC(3)) /*!< the time base of WWDGT = (PCLK1/4096)/8 */
/*!< write value to WWDGT_CTL_CNT bit field */
#define CTL_CNT(regval) (BITS(0,6) & ((uint32_t)(regval) << 0U))
/*!< write value to WWDGT_CFG_WIN bit field */
#define CFG_WIN(regval) (BITS(0,6) & ((uint32_t)(regval) << 0U))
/* function declarations */
/* reset the window watchdog timer configuration */
void wwdgt_deinit(void);
/* start the window watchdog timer counter */
void wwdgt_enable(void);
/* configure the window watchdog timer counter value */
void wwdgt_counter_update(uint16_t counter_value);
/* configure counter value, window value, and prescaler divider value */
void wwdgt_config(uint16_t counter, uint16_t window, uint32_t prescaler);
/* check early wakeup interrupt state of WWDGT */
FlagStatus wwdgt_flag_get(void);
/* clear early wakeup interrupt state of WWDGT */
void wwdgt_flag_clear(void);
/* enable early wakeup interrupt of WWDGT */
void wwdgt_interrupt_enable(void);
#endif /* GD32E23X_WWDGT_H */

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/*!
\file gd32e23x_adc.c
\brief ADC driver
\version 2024-02-22, V2.1.0, firmware for GD32E23x
*/
/*
Copyright (c) 2024, GigaDevice Semiconductor Inc.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.
*/
#include "gd32e23x_adc.h"
/*!
\brief reset ADC
\param[in] none
\param[out] none
\retval none
*/
void adc_deinit(void)
{
rcu_periph_reset_enable(RCU_ADCRST);
rcu_periph_reset_disable(RCU_ADCRST);
}
/*!
\brief enable ADC interface
\param[in] none
\param[out] none
\retval none
*/
void adc_enable(void)
{
if(RESET == (ADC_CTL1 & ADC_CTL1_ADCON)){
ADC_CTL1 |= (uint32_t)ADC_CTL1_ADCON;
}
}
/*!
\brief disable ADC interface
\param[in] none
\param[out] none
\retval none
*/
void adc_disable(void)
{
ADC_CTL1 &= ~((uint32_t)ADC_CTL1_ADCON);
}
/*!
\brief ADC calibration and reset calibration
\param[in] none
\param[out] none
\retval none
*/
void adc_calibration_enable(void)
{
/* reset the selected ADC calibration register */
ADC_CTL1 |= (uint32_t) ADC_CTL1_RSTCLB;
/* check the RSTCLB bit state */
while((ADC_CTL1 & ADC_CTL1_RSTCLB)){
}
/* enable ADC calibration process */
ADC_CTL1 |= ADC_CTL1_CLB;
/* check the CLB bit state */
while((ADC_CTL1 & ADC_CTL1_CLB)){
}
}
/*!
\brief enable DMA request
\param[in] none
\param[out] none
\retval none
*/
void adc_dma_mode_enable(void)
{
ADC_CTL1 |= (uint32_t)(ADC_CTL1_DMA);
}
/*!
\brief disable DMA request
\param[in] none
\param[out] none
\retval none
*/
void adc_dma_mode_disable(void)
{
ADC_CTL1 &= ~((uint32_t)ADC_CTL1_DMA);
}
/*!
\brief enable the temperature sensor and Vrefint channel
\param[in] none
\param[out] none
\retval none
*/
void adc_tempsensor_vrefint_enable(void)
{
/* enable the temperature sensor and Vrefint channel */
ADC_CTL1 |= ADC_CTL1_TSVREN;
}
/*!
\brief disable the temperature sensor and Vrefint channel
\param[in] none
\param[out] none
\retval none
*/
void adc_tempsensor_vrefint_disable(void)
{
/* disable the temperature sensor and Vrefint channel */
ADC_CTL1 &= ~ADC_CTL1_TSVREN;
}
/*!
\brief configure ADC discontinuous mode
\param[in] channel_group: select the channel group
only one parameter can be selected which is shown as below:
\arg ADC_REGULAR_CHANNEL: regular channel group
\arg ADC_INSERTED_CHANNEL: inserted channel group
\arg ADC_CHANNEL_DISCON_DISABLE: disable discontinuous mode of regular and inserted channel
\param[in] length: number of conversions in discontinuous mode, the number can be 1..8
for regular channel, the number has no effect for inserted channel
\param[out] none
\retval none
*/
void adc_discontinuous_mode_config(uint8_t channel_group, uint8_t length)
{
ADC_CTL0 &= ~((uint32_t)(ADC_CTL0_DISRC | ADC_CTL0_DISIC));
switch(channel_group){
case ADC_REGULAR_CHANNEL:
/* configure the number of conversions in discontinuous mode */
ADC_CTL0 &= ~((uint32_t)ADC_CTL0_DISNUM);
ADC_CTL0 |= CTL0_DISNUM(((uint32_t)length - 1U));
ADC_CTL0 |= (uint32_t)ADC_CTL0_DISRC;
break;
case ADC_INSERTED_CHANNEL:
ADC_CTL0 |= (uint32_t)ADC_CTL0_DISIC;
break;
case ADC_CHANNEL_DISCON_DISABLE:
default:
break;
}
}
/*!
\brief configure ADC special function
\param[in] function: the function to configure
one or more parameters can be selected which is shown as below:
\arg ADC_SCAN_MODE: scan mode select
\arg ADC_INSERTED_CHANNEL_AUTO: inserted channel group convert automatically
\arg ADC_CONTINUOUS_MODE: continuous mode select
\param[in] newvalue: ENABLE or DISABLE
\param[out] none
\retval none
*/
void adc_special_function_config(uint32_t function, ControlStatus newvalue)
{
if(newvalue){
/* enable ADC scan mode */
if(RESET != (function & ADC_SCAN_MODE)){
ADC_CTL0 |= ADC_SCAN_MODE;
}
/* enable ADC inserted channel group convert automatically */
if(RESET != (function & ADC_INSERTED_CHANNEL_AUTO)){
ADC_CTL0 |= ADC_INSERTED_CHANNEL_AUTO;
}
/* enable ADC continuous mode */
if(RESET != (function & ADC_CONTINUOUS_MODE)){
ADC_CTL1 |= ADC_CONTINUOUS_MODE;
}
}else{
/* disable ADC scan mode */
if(RESET != (function & ADC_SCAN_MODE)){
ADC_CTL0 &= ~ADC_SCAN_MODE;
}
/* disable ADC inserted channel group convert automatically */
if(RESET != (function & ADC_INSERTED_CHANNEL_AUTO)){
ADC_CTL0 &= ~ADC_INSERTED_CHANNEL_AUTO;
}
/* disable ADC continuous mode */
if(RESET != (function & ADC_CONTINUOUS_MODE)){
ADC_CTL1 &= ~ADC_CONTINUOUS_MODE;
}
}
}
/*!
\brief configure ADC data alignment
\param[in] data_alignment: data alignment select
only one parameter can be selected which is shown as below:
\arg ADC_DATAALIGN_RIGHT: right alignment
\arg ADC_DATAALIGN_LEFT: left alignment
\param[out] none
\retval none
*/
void adc_data_alignment_config(uint32_t data_alignment)
{
if(ADC_DATAALIGN_RIGHT != data_alignment){
ADC_CTL1 |= ADC_CTL1_DAL;
}else{
ADC_CTL1 &= ~((uint32_t)ADC_CTL1_DAL);
}
}
/*!
\brief configure the length of regular channel group or inserted channel group
\param[in] channel_group: select the channel group
only one parameter can be selected which is shown as below:
\arg ADC_REGULAR_CHANNEL: regular channel group
\arg ADC_INSERTED_CHANNEL: inserted channel group
\param[in] length: the length of the channel
regular channel 1-16
inserted channel 1-4
\param[out] none
\retval none
*/
void adc_channel_length_config(uint8_t channel_group, uint32_t length)
{
switch(channel_group){
case ADC_REGULAR_CHANNEL:
/* configure the length of regular channel group */
ADC_RSQ0 &= ~((uint32_t)ADC_RSQ0_RL);
ADC_RSQ0 |= RSQ0_RL((uint32_t)(length-1U));
break;
case ADC_INSERTED_CHANNEL:
/* configure the length of inserted channel group */
ADC_ISQ &= ~((uint32_t)ADC_ISQ_IL);
ADC_ISQ |= ISQ_IL((uint32_t)(length-1U));
break;
default:
break;
}
}
/*!
\brief configure ADC regular channel
\param[in] rank: the regular group sequence rank, this parameter must be between 0 to 15
\param[in] channel: the selected ADC channel
only one parameter can be selected which is shown as below:
\arg ADC_CHANNEL_x(x=0..9,16,17): ADC Channelx
\param[in] sample_time: the sample time value
only one parameter can be selected which is shown as below:
\arg ADC_SAMPLETIME_1POINT5: 1.5 cycles
\arg ADC_SAMPLETIME_7POINT5: 7.5 cycles
\arg ADC_SAMPLETIME_13POINT5: 13.5 cycles
\arg ADC_SAMPLETIME_28POINT5: 28.5 cycles
\arg ADC_SAMPLETIME_41POINT5: 41.5 cycles
\arg ADC_SAMPLETIME_55POINT5: 55.5 cycles
\arg ADC_SAMPLETIME_71POINT5: 71.5 cycles
\arg ADC_SAMPLETIME_239POINT5: 239.5 cycles
\param[out] none
\retval none
*/
void adc_regular_channel_config(uint8_t rank, uint8_t channel, uint32_t sample_time)
{
uint32_t rsq,sampt;
/* configure ADC regular sequence */
if(rank < 6U){
rsq = ADC_RSQ2;
rsq &= ~((uint32_t)(ADC_RSQX_RSQN << (5U*rank)));
rsq |= ((uint32_t)channel << (5U*rank));
ADC_RSQ2 = rsq;
}else if(rank < 12U){
rsq = ADC_RSQ1;
rsq &= ~((uint32_t)(ADC_RSQX_RSQN << (5U*(rank-6U))));
rsq |= ((uint32_t)channel << (5U*(rank-6U)));
ADC_RSQ1 = rsq;
}else if(rank < 16U){
rsq = ADC_RSQ0;
rsq &= ~((uint32_t)(ADC_RSQX_RSQN << (5U*(rank-12U))));
rsq |= ((uint32_t)channel << (5U*(rank-12U)));
ADC_RSQ0 = rsq;
}else{
}
/* configure ADC sampling time */
if(channel < 10U){
sampt = ADC_SAMPT1;
sampt &= ~((uint32_t)(ADC_SAMPTX_SPTN << (3U*channel)));
sampt |= (uint32_t)(sample_time << (3U*channel));
ADC_SAMPT1 = sampt;
}else if(channel < 19U){
sampt = ADC_SAMPT0;
sampt &= ~((uint32_t)(ADC_SAMPTX_SPTN << (3U*(channel-10U))));
sampt |= (uint32_t)(sample_time << (3U*(channel-10U)));
ADC_SAMPT0 = sampt;
}else{
/* illegal parameters */
}
}
/*!
\brief configure ADC inserted channel
\param[in] rank: the inserted group sequencer rank,this parameter must be between 0 to 3
\param[in] channel: the selected ADC channel
only one parameter can be selected which is shown as below:
\arg ADC_CHANNEL_x(x=0..9,16,17): ADC Channelx
\param[in] sample_time: The sample time value
only one parameter can be selected which is shown as below:
\arg ADC_SAMPLETIME_1POINT5: 1.5 cycles
\arg ADC_SAMPLETIME_7POINT5: 7.5 cycles
\arg ADC_SAMPLETIME_13POINT5: 13.5 cycles
\arg ADC_SAMPLETIME_28POINT5: 28.5 cycles
\arg ADC_SAMPLETIME_41POINT5: 41.5 cycles
\arg ADC_SAMPLETIME_55POINT5: 55.5 cycles
\arg ADC_SAMPLETIME_71POINT5: 71.5 cycles
\arg ADC_SAMPLETIME_239POINT5: 239.5 cycles
\param[out] none
\retval none
*/
void adc_inserted_channel_config(uint8_t rank, uint8_t channel, uint32_t sample_time)
{
uint8_t inserted_length;
uint32_t isq,sampt;
inserted_length = (uint8_t)GET_BITS(ADC_ISQ , 20U , 21U);
isq = ADC_ISQ;
isq &= ~((uint32_t)(ADC_ISQ_ISQN << (15U - (inserted_length - rank)*5U)));
isq |= ((uint32_t)channel << (15U - (inserted_length - rank)*5U));
ADC_ISQ = isq;
/* configure ADC sampling time */
if(channel < 10U){
sampt = ADC_SAMPT1;
sampt &= ~((uint32_t)(ADC_SAMPTX_SPTN << (3U*channel)));
sampt |= (uint32_t) sample_time << (3U*channel);
ADC_SAMPT1 = sampt;
}else if(channel < 19U){
sampt = ADC_SAMPT0;
sampt &= ~((uint32_t)(ADC_SAMPTX_SPTN << (3U*(channel - 10U))));
sampt |= ((uint32_t)sample_time << (3U*(channel - 10U)));
ADC_SAMPT0 = sampt;
}else{
/* illegal parameters */
}
}
/*!
\brief configure ADC inserted channel offset
\param[in] inserted_channel: insert channel select
only one parameter can be selected which is shown as below:
\arg ADC_INSERTED_CHANNEL_0: ADC inserted channel 0
\arg ADC_INSERTED_CHANNEL_1: ADC inserted channel 1
\arg ADC_INSERTED_CHANNEL_2: ADC inserted channel 2
\arg ADC_INSERTED_CHANNEL_3: ADC inserted channel 3
\param[in] offset: the offset data
\param[out] none
\retval none
*/
void adc_inserted_channel_offset_config(uint8_t inserted_channel, uint16_t offset)
{
uint8_t inserted_length;
uint32_t num = 0U;
inserted_length = (uint8_t)GET_BITS(ADC_ISQ, 20U, 21U);
num = 3U - (inserted_length - inserted_channel);
if(num <= 3U){
/* calculate the offset of the register */
num = num * 4U;
/* configure the offset of the selected channels */
REG32((ADC) + 0x14U + num) = IOFFX_IOFF((uint32_t)offset);
}
}
/*!
\brief enable or disable ADC external trigger
\param[in] channel_group: select the channel group
one or more parameters can be selected which is shown as below:
\arg ADC_REGULAR_CHANNEL: regular channel group
\arg ADC_INSERTED_CHANNEL: inserted channel group
\param[in] newvalue: ENABLE or DISABLE
\param[out] none
\retval none
*/
void adc_external_trigger_config(uint8_t channel_group, ControlStatus newvalue)
{
if(newvalue){
/* external trigger enable for regular channel */
if(RESET != (channel_group & ADC_REGULAR_CHANNEL)){
ADC_CTL1 |= ADC_CTL1_ETERC;
}
/* external trigger enable for inserted channel */
if(RESET != (channel_group & ADC_INSERTED_CHANNEL)){
ADC_CTL1 |= ADC_CTL1_ETEIC;
}
}else{
/* external trigger disable for regular channel */
if(RESET != (channel_group & ADC_REGULAR_CHANNEL)){
ADC_CTL1 &= ~ADC_CTL1_ETERC;
}
/* external trigger disable for inserted channel */
if(RESET != (channel_group & ADC_INSERTED_CHANNEL)){
ADC_CTL1 &= ~ADC_CTL1_ETEIC;
}
}
}
/*!
\brief configure ADC external trigger source
\param[in] channel_group: select the channel group
only one parameter can be selected which is shown as below:
\arg ADC_REGULAR_CHANNEL: regular channel group
\arg ADC_INSERTED_CHANNEL: inserted channel group
\param[in] external_trigger_source: regular or inserted group trigger source
only one parameter can be selected which is shown as below:
for regular channel:
\arg ADC_EXTTRIG_REGULAR_T0_CH0: TIMER0 CH0 event select
\arg ADC_EXTTRIG_REGULAR_T0_CH1: TIMER0 CH1 event select
\arg ADC_EXTTRIG_REGULAR_T0_CH2: TIMER0 CH2 event select
\arg ADC_EXTTRIG_REGULAR_T2_TRGO: TIMER2 TRGO event select
\arg ADC_EXTTRIG_REGULAR_T14_CH0: TIMER14 CH0 event select
\arg ADC_EXTTRIG_REGULAR_EXTI_11: external interrupt line 11
\arg ADC_EXTTRIG_REGULAR_NONE: software trigger
for inserted channel:
\arg ADC_EXTTRIG_INSERTED_T0_TRGO: TIMER0 TRGO event select
\arg ADC_EXTTRIG_INSERTED_T0_CH3: TIMER0 CH3 event select
\arg ADC_EXTTRIG_INSERTED_T2_CH3: TIMER2 CH3 event select
\arg ADC_EXTTRIG_INSERTED_T14_TRGO: TIMER14 TRGO event select
\arg ADC_EXTTRIG_INSERTED_EXTI_15: external interrupt line 15
\arg ADC_EXTTRIG_INSERTED_NONE: software trigger
\param[out] none
\retval none
*/
void adc_external_trigger_source_config(uint8_t channel_group, uint32_t external_trigger_source)
{
switch(channel_group){
case ADC_REGULAR_CHANNEL:
/* external trigger select for regular channel */
ADC_CTL1 &= ~((uint32_t)ADC_CTL1_ETSRC);
ADC_CTL1 |= (uint32_t)external_trigger_source;
break;
case ADC_INSERTED_CHANNEL:
/* external trigger select for inserted channel */
ADC_CTL1 &= ~((uint32_t)ADC_CTL1_ETSIC);
ADC_CTL1 |= (uint32_t)external_trigger_source;
break;
default:
break;
}
}
/*!
\brief enable ADC software trigger
\param[in] channel_group: select the channel group
one or more parameters can be selected which is shown as below:
\arg ADC_REGULAR_CHANNEL: regular channel group
\arg ADC_INSERTED_CHANNEL: inserted channel group
\param[out] none
\retval none
*/
void adc_software_trigger_enable(uint8_t channel_group)
{
/* enable regular group channel software trigger */
if(RESET != (channel_group & ADC_REGULAR_CHANNEL)){
ADC_CTL1 |= ADC_CTL1_SWRCST;
}
/* enable inserted channel group software trigger */
if(RESET != (channel_group & ADC_INSERTED_CHANNEL)){
ADC_CTL1 |= ADC_CTL1_SWICST;
}
}
/*!
\brief read ADC regular group data register
\param[in] none
\param[out] none
\retval the conversion value
*/
uint16_t adc_regular_data_read(void)
{
return ((uint16_t)ADC_RDATA);
}
/*!
\brief read ADC inserted group data register
\param[in] inserted_channel: inserted channel select
only one parameter can be selected which is shown as below:
\arg ADC_INSERTED_CHANNEL_0: ADC inserted channel 0
\arg ADC_INSERTED_CHANNEL_1: ADC inserted channel 1
\arg ADC_INSERTED_CHANNEL_2: ADC inserted channel 2
\arg ADC_INSERTED_CHANNEL_3: ADC inserted channel 3
\param[out] none
\retval the conversion value
*/
uint16_t adc_inserted_data_read(uint8_t inserted_channel)
{
uint32_t idata;
/* read the data of the selected channel */
switch(inserted_channel){
case ADC_INSERTED_CHANNEL_0:
idata = ADC_IDATA0;
break;
case ADC_INSERTED_CHANNEL_1:
idata = ADC_IDATA1;
break;
case ADC_INSERTED_CHANNEL_2:
idata = ADC_IDATA2;
break;
case ADC_INSERTED_CHANNEL_3:
idata = ADC_IDATA3;
break;
default:
idata = 0U;
break;
}
return (uint16_t)idata;
}
/*!
\brief get the ADC flag bits
\param[in] flag: the adc flag bits
only one parameter can be selected which is shown as below:
\arg ADC_FLAG_WDE: analog watchdog event flag
\arg ADC_FLAG_EOC: end of group conversion flag
\arg ADC_FLAG_EOIC: end of inserted group conversion flag
\arg ADC_FLAG_STIC: start flag of inserted channel group
\arg ADC_FLAG_STRC: start flag of regular channel group
\param[out] none
\retval FlagStatus: SET or RESET
*/
FlagStatus adc_flag_get(uint32_t flag)
{
FlagStatus reval = RESET;
if(ADC_STAT & flag){
reval = SET;
}
return reval;
}
/*!
\brief clear the ADC flag
\param[in] flag: the adc flag
one or more parameters can be selected which is shown as below:
\arg ADC_FLAG_WDE: analog watchdog event flag
\arg ADC_FLAG_EOC: end of group conversion flag
\arg ADC_FLAG_EOIC: end of inserted group conversion flag
\arg ADC_FLAG_STIC: start flag of inserted channel group
\arg ADC_FLAG_STRC: start flag of regular channel group
\param[out] none
\retval none
*/
void adc_flag_clear(uint32_t flag)
{
ADC_STAT &= ~((uint32_t)flag);
}
/*!
\brief get the ADC interrupt flag
\param[in] flag: the adc interrupt flag
only one parameter can be selected which is shown as below:
\arg ADC_INT_FLAG_WDE: analog watchdog interrupt flag
\arg ADC_INT_FLAG_EOC: end of group conversion interrupt flag
\arg ADC_INT_FLAG_EOIC: end of inserted group conversion interrupt flag
\param[out] none
\retval FlagStatus: SET or RESET
*/
FlagStatus adc_interrupt_flag_get(uint32_t flag)
{
FlagStatus interrupt_flag = RESET;
uint32_t state;
/* check the interrupt bits */
switch(flag){
case ADC_INT_FLAG_WDE:
state = ADC_STAT & ADC_STAT_WDE;
if((ADC_CTL0 & ADC_CTL0_WDEIE) && state){
interrupt_flag = SET;
}
break;
case ADC_INT_FLAG_EOC:
state = ADC_STAT & ADC_STAT_EOC;
if((ADC_CTL0 & ADC_CTL0_EOCIE) && state){
interrupt_flag = SET;
}
break;
case ADC_INT_FLAG_EOIC:
state = ADC_STAT & ADC_STAT_EOIC;
if((ADC_CTL0 & ADC_CTL0_EOICIE) && state){
interrupt_flag = SET;
}
break;
default:
break;
}
return interrupt_flag;
}
/*!
\brief clear ADC interrupt flag
\param[in] flag: the adc interrupt flag
only one parameter can be selected which is shown as below:
\arg ADC_INT_FLAG_WDE: analog watchdog interrupt flag
\arg ADC_INT_FLAG_EOC: end of group conversion interrupt flag
\arg ADC_INT_FLAG_EOIC: end of inserted group conversion interrupt flag
\param[out] none
\retval none
*/
void adc_interrupt_flag_clear(uint32_t flag)
{
ADC_STAT &= ~((uint32_t)flag);
}
/*!
\brief enable ADC interrupt
\param[in] interrupt: the adc interrupt
one or more parameters can be selected which is shown as below:
\arg ADC_INT_WDE: analog watchdog interrupt
\arg ADC_INT_EOC: end of group conversion interrupt
\arg ADC_INT_EOIC: end of inserted group conversion interrupt
\param[out] none
\retval none
*/
void adc_interrupt_enable(uint32_t interrupt)
{
/* enable analog watchdog interrupt */
if(RESET != (interrupt & ADC_INT_WDE)){
ADC_CTL0 |= (uint32_t)ADC_CTL0_WDEIE;
}
/* enable end of group conversion interrupt */
if(RESET != (interrupt & ADC_INT_EOC)){
ADC_CTL0 |= (uint32_t)ADC_CTL0_EOCIE;
}
/* enable end of inserted group conversion interrupt */
if(RESET != (interrupt & ADC_INT_EOIC)){
ADC_CTL0 |= (uint32_t)ADC_CTL0_EOICIE;
}
}
/*!
\brief disable ADC interrupt
\param[in] interrupt: the adc interrupt flag
one or more parameters can be selected which is shown as below:
\arg ADC_INT_WDE: analog watchdog interrupt
\arg ADC_INT_EOC: end of group conversion interrupt
\arg ADC_INT_EOIC: end of inserted group conversion interrupt
\param[out] none
\retval none
*/
void adc_interrupt_disable(uint32_t interrupt)
{
/* disable analog watchdog interrupt */
if(RESET != (interrupt & ADC_INT_WDE)){
ADC_CTL0 &= ~(uint32_t)ADC_CTL0_WDEIE;
}
/* disable end of group conversion interrupt */
if(RESET != (interrupt & ADC_INT_EOC)){
ADC_CTL0 &= ~(uint32_t)ADC_CTL0_EOCIE;
}
/* disable end of inserted group conversion interrupt */
if(RESET != (interrupt & ADC_INT_EOIC)){
ADC_CTL0 &= ~(uint32_t)ADC_CTL0_EOICIE;
}
}
/*!
\brief configure ADC analog watchdog single channel
\param[in] channel: the selected ADC channel
only one parameter can be selected which is shown as below:
\arg ADC_CHANNEL_x(x=0..9,16,17): ADC Channelx
\param[out] none
\retval none
*/
void adc_watchdog_single_channel_enable(uint8_t channel)
{
ADC_CTL0 &= (uint32_t)~(ADC_CTL0_RWDEN | ADC_CTL0_IWDEN | ADC_CTL0_WDSC | ADC_CTL0_WDCHSEL);
ADC_CTL0 |= (uint32_t)channel;
ADC_CTL0 |= (uint32_t)(ADC_CTL0_RWDEN | ADC_CTL0_IWDEN | ADC_CTL0_WDSC);
}
/*!
\brief configure ADC analog watchdog group channel
\param[in] channel_group: the channel group use analog watchdog
only one parameter can be selected which is shown as below:
\arg ADC_REGULAR_CHANNEL: regular channel group
\arg ADC_INSERTED_CHANNEL: inserted channel group
\arg ADC_REGULAR_INSERTED_CHANNEL: both regular and inserted group
\param[out] none
\retval none
*/
void adc_watchdog_group_channel_enable(uint8_t channel_group)
{
ADC_CTL0 &= (uint32_t)~(ADC_CTL0_RWDEN | ADC_CTL0_IWDEN | ADC_CTL0_WDSC);
/* select the group */
switch(channel_group){
case ADC_REGULAR_CHANNEL:
ADC_CTL0 |= (uint32_t)ADC_CTL0_RWDEN;
break;
case ADC_INSERTED_CHANNEL:
ADC_CTL0 |= (uint32_t)ADC_CTL0_IWDEN;
break;
case ADC_REGULAR_INSERTED_CHANNEL:
ADC_CTL0 |= (uint32_t)(ADC_CTL0_RWDEN | ADC_CTL0_IWDEN);
break;
default:
break;
}
}
/*!
\brief disable ADC analog watchdog
\param[in] none
\param[out] none
\retval none
*/
void adc_watchdog_disable(void)
{
ADC_CTL0 &= (uint32_t)~(ADC_CTL0_RWDEN | ADC_CTL0_IWDEN | ADC_CTL0_WDSC | ADC_CTL0_WDCHSEL);
}
/*!
\brief configure ADC analog watchdog threshold
\param[in] low_threshold: analog watchdog low threshold,0..4095
\param[in] high_threshold: analog watchdog high threshold,0..4095
\param[out] none
\retval none
*/
void adc_watchdog_threshold_config(uint16_t low_threshold, uint16_t high_threshold)
{
ADC_WDLT = (uint32_t)WDLT_WDLT(low_threshold);
ADC_WDHT = (uint32_t)WDHT_WDHT(high_threshold);
}
/*!
\brief configure ADC resolution
\param[in] resolution: ADC resolution
only one parameter can be selected which is shown as below:
\arg ADC_RESOLUTION_12B: 12-bit ADC resolution
\arg ADC_RESOLUTION_10B: 10-bit ADC resolution
\arg ADC_RESOLUTION_8B: 8-bit ADC resolution
\arg ADC_RESOLUTION_6B: 6-bit ADC resolution
\param[out] none
\retval none
*/
void adc_resolution_config(uint32_t resolution)
{
ADC_CTL0 &= ~((uint32_t)ADC_CTL0_DRES);
ADC_CTL0 |= (uint32_t)resolution;
}
/*!
\brief configure ADC oversample mode
\param[in] mode: ADC oversampling mode
only one parameter can be selected which is shown as below:
\arg ADC_OVERSAMPLING_ALL_CONVERT: all oversampled conversions for a channel are done consecutively after a trigger
\arg ADC_OVERSAMPLING_ONE_CONVERT: each oversampled conversion for a channel needs a trigger
\param[in] shift: ADC oversampling shift
only one parameter can be selected which is shown as below:
\arg ADC_OVERSAMPLING_SHIFT_NONE: no oversampling shift
\arg ADC_OVERSAMPLING_SHIFT_1B: 1-bit oversampling shift
\arg ADC_OVERSAMPLING_SHIFT_2B: 2-bit oversampling shift
\arg ADC_OVERSAMPLING_SHIFT_3B: 3-bit oversampling shift
\arg ADC_OVERSAMPLING_SHIFT_4B: 3-bit oversampling shift
\arg ADC_OVERSAMPLING_SHIFT_5B: 5-bit oversampling shift
\arg ADC_OVERSAMPLING_SHIFT_6B: 6-bit oversampling shift
\arg ADC_OVERSAMPLING_SHIFT_7B: 7-bit oversampling shift
\arg ADC_OVERSAMPLING_SHIFT_8B: 8-bit oversampling shift
\param[in] ratio: ADC oversampling ratio
only one parameter can be selected which is shown as below:
\arg ADC_OVERSAMPLING_RATIO_MUL2: oversampling ratio multiple 2
\arg ADC_OVERSAMPLING_RATIO_MUL4: oversampling ratio multiple 4
\arg ADC_OVERSAMPLING_RATIO_MUL8: oversampling ratio multiple 8
\arg ADC_OVERSAMPLING_RATIO_MUL16: oversampling ratio multiple 16
\arg ADC_OVERSAMPLING_RATIO_MUL32: oversampling ratio multiple 32
\arg ADC_OVERSAMPLING_RATIO_MUL64: oversampling ratio multiple 64
\arg ADC_OVERSAMPLING_RATIO_MUL128: oversampling ratio multiple 128
\arg ADC_OVERSAMPLING_RATIO_MUL256: oversampling ratio multiple 256
\param[out] none
\retval none
*/
void adc_oversample_mode_config(uint8_t mode, uint16_t shift, uint8_t ratio)
{
/* configure ADC oversampling mode */
if(ADC_OVERSAMPLING_ONE_CONVERT == mode){
ADC_OVSAMPCTL |= (uint32_t)ADC_OVSAMPCTL_TOVS;
}else{
ADC_OVSAMPCTL &= ~((uint32_t)ADC_OVSAMPCTL_TOVS);
}
/* configure the shift and ratio */
ADC_OVSAMPCTL &= ~((uint32_t)(ADC_OVSAMPCTL_OVSR | ADC_OVSAMPCTL_OVSS));
ADC_OVSAMPCTL |= ((uint32_t)shift | (uint32_t)ratio);
}
/*!
\brief enable ADC oversample mode
\param[in] none
\param[out] none
\retval none
*/
void adc_oversample_mode_enable(void)
{
ADC_OVSAMPCTL |= ADC_OVSAMPCTL_OVSEN;
}
/*!
\brief disable ADC oversample mode
\param[in] none
\param[out] none
\retval none
*/
void adc_oversample_mode_disable(void)
{
ADC_OVSAMPCTL &= ~((uint32_t)ADC_OVSAMPCTL_OVSEN);
}

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/*!
\file gd32f23x_cmp.c
\brief CMP driver
\version 2024-02-22, V2.1.0, firmware for GD32E23x
*/
/*
Copyright (c) 2022, GigaDevice Semiconductor Inc.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.
*/
#include "gd32e23x_cmp.h"
/*!
\brief CMP deinit
\param[in] cmp_periph
\arg CMP0: comparator 0
\param[out] none
\retval none
*/
void cmp_deinit(cmp_enum cmp_periph)
{
if(CMP0 == cmp_periph){
CMP_CS &= ((uint32_t)0xFFFF0000U);
}else{
}
}
/*!
\brief CMP mode init
\param[in] cmp_periph
\arg CMP0: comparator 0
\param[in] operating_mode
\arg CMP_MODE_HIGHSPEED: high speed mode
\arg CMP_MODE_MIDDLESPEED: medium speed mode
\arg CMP_MODE_LOWSPEED: low speed mode
\arg CMP_MODE_VERYLOWSPEED: very-low speed mode
\param[in] inverting_input
\arg CMP_INVERTING_INPUT_1_4VREFINT: VREFINT *1/4 input
\arg CMP_INVERTING_INPUT_1_2VREFINT: VREFINT *1/2 input
\arg CMP_INVERTING_INPUT_3_4VREFINT: VREFINT *3/4 input
\arg CMP_INVERTING_INPUT_VREFINT: VREFINT input
\arg CMP_INVERTING_INPUT_PA4: PA4 input
\arg CMP_INVERTING_INPUT_PA5: PA5 input
\arg CMP_INVERTING_INPUT_PA0_PA2: PA0 for CMP0 or PA2 for CMP1 as inverting input
\param[in] output_hysteresis
\arg CMP_HYSTERESIS_NO: output no hysteresis
\arg CMP_HYSTERESIS_LOW: output low hysteresis
\arg CMP_HYSTERESIS_MIDDLE: output middle hysteresis
\arg CMP_HYSTERESIS_HIGH: output high hysteresis
\param[out] none
\retval none
*/
void cmp_mode_init(cmp_enum cmp_periph, uint32_t operating_mode, uint32_t inverting_input, uint32_t output_hysteresis)
{
uint32_t temp = 0U;
if(CMP0 == cmp_periph){
/* initialize comparator 0 mode */
temp = CMP_CS;
temp &= ~(uint32_t)(CMP_CS_CMP0M | CMP_CS_CMP0MSEL | CMP_CS_CMP0HST);
temp |= (uint32_t)(operating_mode | inverting_input | output_hysteresis);
CMP_CS = temp;
}else{
}
}
/*!
\brief CMP output init
\param[in] cmp_periph
\arg CMP0: comparator 0
\param[in] output_selection
\arg CMP_OUTPUT_NONE: CMP output none
\arg CMP_OUTPUT_TIMER0_BKIN: CMP output TIMER0 break input
\arg CMP_OUTPUT_TIMER0_IC0: CMP output TIMER0_CH0 input capture
\arg CMP_OUTPUT_TIMER0_OCPRECLR: CMP output TIMER0 OCPRE_CLR input
\arg CMP_OUTPUT_TIMER2_IC0: CMP output TIMER2_CH0 input capture
\arg CMP_OUTPUT_TIMER2_OCPRECLR: CMP output TIMER2 OCPRE_CLR input
\param[in] output_polarity
\arg CMP_OUTPUT_POLARITY_INVERTED: output is inverted
\arg CMP_OUTPUT_POLARITY_NONINVERTED: output is not inverted
\param[out] none
\retval none
*/
void cmp_output_init(cmp_enum cmp_periph, uint32_t output_selection, uint32_t output_polarity)
{
uint32_t temp = 0U;
if(CMP0 == cmp_periph){
/* initialize comparator 0 output */
temp = CMP_CS;
temp &= ~(uint32_t)CMP_CS_CMP0OSEL;
temp |= (uint32_t)output_selection;
/* output polarity */
if(CMP_OUTPUT_POLARITY_INVERTED == output_polarity){
temp |= (uint32_t)CMP_CS_CMP0PL;
}else{
temp &= ~(uint32_t)CMP_CS_CMP0PL;
}
CMP_CS = temp;
}else{
}
}
/*!
\brief enable CMP
\param[in] cmp_periph
\arg CMP0: comparator 0
\param[out] none
\retval none
*/
void cmp_enable(cmp_enum cmp_periph)
{
if(CMP0 == cmp_periph){
CMP_CS |= (uint32_t)CMP_CS_CMP0EN;
}else{
}
}
/*!
\brief disable CMP
\param[in] cmp_periph
\arg CMP0: comparator 0
\param[out] none
\retval none
*/
void cmp_disable(cmp_enum cmp_periph)
{
if(CMP0 == cmp_periph){
CMP_CS &= ~(uint32_t)CMP_CS_CMP0EN;
}else{
}
}
/*!
\brief enable CMP switch
\param[in] none
\param[out] none
\retval none
*/
void cmp_switch_enable(void)
{
CMP_CS |= (uint32_t)CMP_CS_CMP0SW;
}
/*!
\brief disable CMP switch
\param[in] none
\param[out] none
\retval none
*/
void cmp_switch_disable(void)
{
CMP_CS &= ~(uint32_t)CMP_CS_CMP0SW;
}
/*!
\brief lock the CMP
\param[in] cmp_periph
\arg CMP0: comparator 0
\param[out] none
\retval none
*/
void cmp_lock_enable(cmp_enum cmp_periph)
{
if(CMP0 == cmp_periph){
/* lock CMP0 */
CMP_CS |= (uint32_t)CMP_CS_CMP0LK;
}else{
}
}
/*!
\brief get output level
\param[in] cmp_periph
\arg CMP0: comparator 0
\param[out] none
\retval the output level
*/
uint32_t cmp_output_level_get(cmp_enum cmp_periph)
{
/* get output level of CMP0 */
if((uint32_t)RESET != (CMP_CS & CMP_CS_CMP0O)) {
return CMP_OUTPUTLEVEL_HIGH;
}else{
return CMP_OUTPUTLEVEL_LOW;
}
}

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/*!
\file gd32e23x_crc.c
\brief CRC driver
\version 2024-02-22, V2.1.0, firmware for GD32E23x
*/
/*
Copyright (c) 2024, GigaDevice Semiconductor Inc.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.
*/
#include "gd32e23x_crc.h"
/*!
\brief deinit CRC calculation unit
\param[in] none
\param[out] none
\retval none
*/
void crc_deinit(void)
{
CRC_IDATA = (uint32_t)0xFFFFFFFFU;
CRC_DATA = (uint32_t)0xFFFFFFFFU;
CRC_FDATA = (uint32_t)0x00000000U;
CRC_POLY = (uint32_t)0x04C11DB7U;
CRC_CTL = CRC_CTL_RST;
}
/*!
\brief enable the reverse operation of output data
\param[in] none
\param[out] none
\retval none
*/
void crc_reverse_output_data_enable(void)
{
CRC_CTL &= (uint32_t)(~ CRC_CTL_REV_O);
CRC_CTL |= (uint32_t)CRC_CTL_REV_O;
}
/*!
\brief disable the reverse operation of output data
\param[in] none
\param[out] none
\retval none
*/
void crc_reverse_output_data_disable(void)
{
CRC_CTL &= (uint32_t)(~ CRC_CTL_REV_O);
}
/*!
\brief reset data register to the value of initializaiton data register
\param[in] none
\param[out] none
\retval none
*/
void crc_data_register_reset(void)
{
CRC_CTL |= (uint32_t)CRC_CTL_RST;
}
/*!
\brief read the data register
\param[in] none
\param[out] none
\retval 32-bit value of the data register
*/
uint32_t crc_data_register_read(void)
{
uint32_t data;
data = CRC_DATA;
return (data);
}
/*!
\brief read the free data register
\param[in] none
\param[out] none
\retval 8-bit value of the free data register
*/
uint8_t crc_free_data_register_read(void)
{
uint8_t fdata;
fdata = (uint8_t)CRC_FDATA;
return (fdata);
}
/*!
\brief write the free data register
\param[in] free_data: specify 8-bit data
\param[out] none
\retval none
*/
void crc_free_data_register_write(uint8_t free_data)
{
CRC_FDATA = (uint32_t)free_data;
}
/*!
\brief write the initializaiton data register
\param[in] init_data:specify 32-bit data
\param[out] none
\retval none
*/
void crc_init_data_register_write(uint32_t init_data)
{
CRC_IDATA = (uint32_t)init_data;
}
/*!
\brief configure the CRC input data function
\param[in] data_reverse: specify input data reverse function
only one parameter can be selected which is shown as below:
\arg CRC_INPUT_DATA_NOT: input data is not reversed
\arg CRC_INPUT_DATA_BYTE: input data is reversed on 8 bits
\arg CRC_INPUT_DATA_HALFWORD: input data is reversed on 16 bits
\arg CRC_INPUT_DATA_WORD: input data is reversed on 32 bits
\param[out] none
\retval none
*/
void crc_input_data_reverse_config(uint32_t data_reverse)
{
CRC_CTL &= (uint32_t)(~CRC_CTL_REV_I);
CRC_CTL |= (uint32_t)data_reverse;
}
/*!
\brief configure the CRC size of polynomial function
\param[in] poly_size: size of polynomial
only one parameter can be selected which is shown as below:
\arg CRC_CTL_PS_32: 32-bit polynomial for CRC calculation
\arg CRC_CTL_PS_16: 16-bit polynomial for CRC calculation
\arg CRC_CTL_PS_8: 8-bit polynomial for CRC calculation
\arg CRC_CTL_PS_7: 7-bit polynomial for CRC calculation
\param[out] none
\retval none
*/
void crc_polynomial_size_set(uint32_t poly_size)
{
CRC_CTL &= (uint32_t)(~(CRC_CTL_PS));
CRC_CTL |= (uint32_t)poly_size;
}
/*!
\brief configure the CRC polynomial value function
\param[in] poly: configurable polynomial value
\param[out] none
\retval none
*/
void crc_polynomial_set(uint32_t poly)
{
CRC_POLY &= (uint32_t)(~CRC_POLY_POLY);
CRC_POLY = poly;
}
/*!
\brief CRC calculate single data
\param[in] sdata: specify input data
\param[in] data_format: input data format
only one parameter can be selected which is shown as below:
\arg INPUT_FORMAT_WORD: input data in word format
\arg INPUT_FORMAT_HALFWORD: input data in half-word format
\arg INPUT_FORMAT_BYTE: input data in byte format
\param[out] none
\retval CRC calculate value
*/
uint32_t crc_single_data_calculate(uint32_t sdata, uint8_t data_format)
{
if(INPUT_FORMAT_WORD == data_format){
REG32(CRC) = sdata;
}else if(INPUT_FORMAT_HALFWORD == data_format){
REG16(CRC) = (uint16_t)sdata;
}else{
REG8(CRC) = (uint8_t)sdata;
}
return(CRC_DATA);
}
/*!
\brief CRC calculate a data array
\param[in] array: pointer to the input data array
\param[in] size: size of the array
\param[in] data_format: input data format
only one parameter can be selected which is shown as below:
\arg INPUT_FORMAT_WORD: input data in word format
\arg INPUT_FORMAT_HALFWORD: input data in half-word format
\arg INPUT_FORMAT_BYTE: input data in byte format
\param[out] none
\retval CRC calculate value
*/
uint32_t crc_block_data_calculate(void *array, uint32_t size, uint8_t data_format)
{
uint8_t *data8;
uint16_t *data16;
uint32_t *data32;
uint32_t index;
if(INPUT_FORMAT_WORD == data_format){
data32 = (uint32_t *)array;
for(index = 0U; index < size; index++){
REG32(CRC) = data32[index];
}
}else if(INPUT_FORMAT_HALFWORD == data_format){
data16 = (uint16_t *)array;
for(index = 0U; index < size; index++){
REG16(CRC) = data16[index];
}
}else{
data8 = (uint8_t *)array;
for(index = 0U; index < size; index++){
REG8(CRC) = data8[index];
}
}
return (CRC_DATA);
}

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/*!
\file gd32e23x_dbg.c
\brief DBG driver
\version 2024-02-22, V2.1.0, firmware for GD32E23x
*/
/*
Copyright (c) 2024, GigaDevice Semiconductor Inc.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.
*/
#include "gd32e23x_dbg.h"
#define DBG_RESET_VAL 0x00000000U
/*!
\brief deinitialize the DBG
\param[in] none
\param[out] none
\retval none
*/
void dbg_deinit(void)
{
DBG_CTL0 = DBG_RESET_VAL;
DBG_CTL1 = DBG_RESET_VAL;
}
/*!
\brief read DBG_ID code register
\param[in] none
\param[out] none
\retval DBG_ID code
*/
uint32_t dbg_id_get(void)
{
return DBG_ID;
}
/*!
\brief enable low power behavior when the mcu is in debug mode
\param[in] dbg_low_power:
this parameter can be any combination of the following values:
\arg DBG_LOW_POWER_SLEEP: keep debugger connection during sleep mode
\arg DBG_LOW_POWER_DEEPSLEEP: keep debugger connection during deepsleep mode
\arg DBG_LOW_POWER_STANDBY: keep debugger connection during standby mode
\param[out] none
\retval none
*/
void dbg_low_power_enable(uint32_t dbg_low_power)
{
DBG_CTL0 |= dbg_low_power;
}
/*!
\brief disable low power behavior when the mcu is in debug mode
\param[in] dbg_low_power:
this parameter can be any combination of the following values:
\arg DBG_LOW_POWER_SLEEP: donot keep debugger connection during sleep mode
\arg DBG_LOW_POWER_DEEPSLEEP: donot keep debugger connection during deepsleep mode
\arg DBG_LOW_POWER_STANDBY: donot keep debugger connection during standby mode
\param[out] none
\retval none
*/
void dbg_low_power_disable(uint32_t dbg_low_power)
{
DBG_CTL0 &= ~dbg_low_power;
}
/*!
\brief enable peripheral behavior when the mcu is in debug mode
\param[in] dbg_periph: DBG peripheral
only one parameter can be selected which is shown as below:
\arg DBG_FWDGT_HOLD: debug FWDGT kept when core is halted
\arg DBG_WWDGT_HOLD: debug WWDGT kept when core is halted
\arg DBG_TIMER0_HOLD: TIMER0 counter kept when core is halted
\arg DBG_TIMER2_HOLD: TIMER2 counter kept when core is halted
\arg DBG_TIMER5_HOLD: hold TIMER5 counter when core is halted
\arg DBG_TIMER13_HOLD: hold TIMER13 counter when core is halted
\arg DBG_TIMER14_HOLD: hold TIMER14 counter when core is halted
\arg DBG_TIMER15_HOLD: hold TIMER15 counter when core is halted
\arg DBG_TIMER16_HOLD: hold TIMER16 counter when core is halted
\arg DBG_I2C0_HOLD: hold I2C0 SMBUS when core is halted
\arg DBG_I2C1_HOLD: hold I2C1 SMBUS when core is halted
\arg DBG_RTC_HOLD: hold RTC calendar and wakeup counter when core is halted
\param[out] none
\retval none
*/
void dbg_periph_enable(dbg_periph_enum dbg_periph)
{
DBG_REG_VAL(dbg_periph) |= BIT(DBG_BIT_POS(dbg_periph));
}
/*!
\brief disable peripheral behavior when the mcu is in debug mode
\param[in] dbg_periph: DBG peripheral
only one parameter can be selected which is shown as below:
\arg DBG_FWDGT_HOLD: debug FWDGT kept when core is halted
\arg DBG_WWDGT_HOLD: debug WWDGT kept when core is halted
\arg DBG_TIMER0_HOLD: TIMER0 counter kept when core is halted
\arg DBG_TIMER2_HOLD: TIMER2 counter kept when core is halted
\arg DBG_TIMER5_HOLD: hold TIMER5 counter when core is halted
\arg DBG_TIMER13_HOLD: hold TIMER13 counter when core is halted
\arg DBG_TIMER14_HOLD: hold TIMER14 counter when core is halted
\arg DBG_TIMER15_HOLD: hold TIMER15 counter when core is halted
\arg DBG_TIMER16_HOLD: hold TIMER16 counter when core is halted
\arg DBG_I2C0_HOLD: hold I2C0 SMBUS when core is halted
\arg DBG_I2C1_HOLD: hold I2C1 SMBUS when core is halted
\arg DBG_RTC_HOLD: hold RTC calendar and wakeup counter when core is halted
\param[out] none
\retval none
*/
void dbg_periph_disable(dbg_periph_enum dbg_periph)
{
DBG_REG_VAL(dbg_periph) &= ~BIT(DBG_BIT_POS(dbg_periph));
}

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/*!
\file gd32e23x_dma.c
\brief DMA driver
\version 2024-02-22, V2.1.0, firmware for GD32E23x
*/
/*
Copyright (c) 2024, GigaDevice Semiconductor Inc.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.
*/
#include "gd32e23x_dma.h"
/*!
\brief deinitialize DMA a channel registers
\param[in] channelx: specify which DMA channel is deinitialized
only one parameter can be selected which is shown as below:
\arg DMA_CHx(x=0..4)
\param[out] none
\retval none
*/
void dma_deinit(dma_channel_enum channelx)
{
/* disable DMA a channel */
DMA_CHCTL(channelx) &= ~DMA_CHXCTL_CHEN;
/* reset DMA channel registers */
DMA_CHCTL(channelx) = DMA_CHCTL_RESET_VALUE;
DMA_CHCNT(channelx) = DMA_CHCNT_RESET_VALUE;
DMA_CHPADDR(channelx) = DMA_CHPADDR_RESET_VALUE;
DMA_CHMADDR(channelx) = DMA_CHMADDR_RESET_VALUE;
DMA_INTC |= DMA_FLAG_ADD(DMA_CHINTF_RESET_VALUE, channelx);
}
/*!
\brief initialize the parameters of DMA struct with the default values
\param[in] init_struct: the initialization data needed to initialize DMA channel
\param[out] none
\retval none
*/
void dma_struct_para_init(dma_parameter_struct* init_struct)
{
/* set the DMA struct with the default values */
init_struct->periph_addr = 0U;
init_struct->periph_width = 0U;
init_struct->periph_inc = (uint8_t)DMA_PERIPH_INCREASE_DISABLE;
init_struct->memory_addr = 0U;
init_struct->memory_width = 0U;
init_struct->memory_inc = (uint8_t)DMA_MEMORY_INCREASE_DISABLE;
init_struct->number = 0U;
init_struct->direction = (uint8_t)DMA_PERIPHERAL_TO_MEMORY;
init_struct->priority = (uint32_t)DMA_PRIORITY_LOW;
}
/*!
\brief initialize DMA channel
\param[in] channelx: specify which DMA channel is initialized
only one parameter can be selected which is shown as below:
\arg DMA_CHx(x=0..4)
\param[in] init_struct: the data needed to initialize DMA channel
periph_addr: peripheral base address
periph_width: DMA_PERIPHERAL_WIDTH_8BIT,DMA_PERIPHERAL_WIDTH_16BIT,DMA_PERIPHERAL_WIDTH_32BIT
periph_inc: DMA_PERIPH_INCREASE_ENABLE,DMA_PERIPH_INCREASE_DISABLE
memory_addr: memory base address
memory_width: DMA_MEMORY_WIDTH_8BIT,DMA_MEMORY_WIDTH_16BIT,DMA_MEMORY_WIDTH_32BIT
memory_inc: DMA_MEMORY_INCREASE_ENABLE,DMA_MEMORY_INCREASE_DISABLE
direction: DMA_PERIPHERAL_TO_MEMORY,DMA_MEMORY_TO_PERIPHERAL
number: the number of remaining data to be transferred by the DMA
priority: DMA_PRIORITY_LOW,DMA_PRIORITY_MEDIUM,DMA_PRIORITY_HIGH,DMA_PRIORITY_ULTRA_HIGH
\param[out] none
\retval none
*/
void dma_init(dma_channel_enum channelx, dma_parameter_struct* init_struct)
{
uint32_t ctl;
dma_channel_disable(channelx);
/* configure peripheral base address */
DMA_CHPADDR(channelx) = init_struct->periph_addr;
/* configure memory base address */
DMA_CHMADDR(channelx) = init_struct->memory_addr;
/* configure the number of remaining data to be transferred */
DMA_CHCNT(channelx) = (init_struct->number & DMA_CHANNEL_CNT_MASK);
/* configure peripheral transfer width,memory transfer width,channel priotity */
ctl = DMA_CHCTL(channelx);
ctl &= ~(DMA_CHXCTL_PWIDTH | DMA_CHXCTL_MWIDTH | DMA_CHXCTL_PRIO);
ctl |= (init_struct->periph_width | init_struct->memory_width | init_struct->priority);
DMA_CHCTL(channelx) = ctl;
/* configure peripheral increasing mode */
if(DMA_PERIPH_INCREASE_ENABLE == init_struct->periph_inc){
DMA_CHCTL(channelx) |= DMA_CHXCTL_PNAGA;
}else{
DMA_CHCTL(channelx) &= ~DMA_CHXCTL_PNAGA;
}
/* configure memory increasing mode */
if(DMA_MEMORY_INCREASE_ENABLE == init_struct->memory_inc){
DMA_CHCTL(channelx) |= DMA_CHXCTL_MNAGA;
}else{
DMA_CHCTL(channelx) &= ~DMA_CHXCTL_MNAGA;
}
/* configure the direction of data transfer */
if(DMA_PERIPHERAL_TO_MEMORY == init_struct->direction){
DMA_CHCTL(channelx) &= ~DMA_CHXCTL_DIR;
}else{
DMA_CHCTL(channelx) |= DMA_CHXCTL_DIR;
}
}
/*!
\brief enable DMA circulation mode
\param[in] channelx: specify which DMA channel to set
only one parameter can be selected which is shown as below:
\arg DMA_CHx(x=0..4)
\param[out] none
\retval none
*/
void dma_circulation_enable(dma_channel_enum channelx)
{
DMA_CHCTL(channelx) |= DMA_CHXCTL_CMEN;
}
/*!
\brief disable DMA circulation mode
\param[in] channelx: specify which DMA channel to set
only one parameter can be selected which is shown as below:
\arg DMA_CHx(x=0..4)
\param[out] none
\retval none
*/
void dma_circulation_disable(dma_channel_enum channelx)
{
DMA_CHCTL(channelx) &= ~DMA_CHXCTL_CMEN;
}
/*!
\brief enable memory to memory mode
\param[in] channelx: specify which DMA channel to set
only one parameter can be selected which is shown as below:
\arg DMA_CHx(x=0..4)
\param[out] none
\retval none
*/
void dma_memory_to_memory_enable(dma_channel_enum channelx)
{
DMA_CHCTL(channelx) |= DMA_CHXCTL_M2M;
}
/*!
\brief disable memory to memory mode
\param[in] channelx: specify which DMA channel to set
only one parameter can be selected which is shown as below:
\arg DMA_CHx(x=0..4)
\param[out] none
\retval none
*/
void dma_memory_to_memory_disable(dma_channel_enum channelx)
{
DMA_CHCTL(channelx) &= ~DMA_CHXCTL_M2M;
}
/*!
\brief enable DMA channel
\param[in] channelx: specify which DMA channel to set
only one parameter can be selected which is shown as below:
\arg DMA_CHx(x=0..4)
\param[out] none
\retval none
*/
void dma_channel_enable(dma_channel_enum channelx)
{
DMA_CHCTL(channelx) |= DMA_CHXCTL_CHEN;
}
/*!
\brief disable DMA channel
\param[in] channelx: specify which DMA channel to set
only one parameter can be selected which is shown as below:
\arg DMA_CHx(x=0..4)
\param[out] none
\retval none
*/
void dma_channel_disable(dma_channel_enum channelx)
{
DMA_CHCTL(channelx) &= ~DMA_CHXCTL_CHEN;
}
/*!
\brief set DMA peripheral base address
\param[in] channelx: specify which DMA channel to set peripheral base address
only one parameter can be selected which is shown as below:
\arg DMA_CHx(x=0..4)
\param[in] address: peripheral base address
\param[out] none
\retval none
*/
void dma_periph_address_config(dma_channel_enum channelx, uint32_t address)
{
DMA_CHPADDR(channelx) = address;
}
/*!
\brief set DMA memory base address
\param[in] channelx: specify which DMA channel to set memory base address
only one parameter can be selected which is shown as below:
\arg DMA_CHx(x=0..4)
\param[in] address: memory base address
\param[out] none
\retval none
*/
void dma_memory_address_config(dma_channel_enum channelx, uint32_t address)
{
DMA_CHMADDR(channelx) = address;
}
/*!
\brief set the number of remaining data to be transferred by the DMA
\param[in] channelx: specify which DMA channel to set number
only one parameter can be selected which is shown as below:
\arg DMA_CHx(x=0..4)
\param[in] number: the number of remaining data to be transferred by the DMA
\param[out] none
\retval none
*/
void dma_transfer_number_config(dma_channel_enum channelx, uint32_t number)
{
DMA_CHCNT(channelx) = (number & DMA_CHANNEL_CNT_MASK);
}
/*!
\brief get the number of remaining data to be transferred by the DMA
\param[in] channelx: specify which DMA channel to set number
only one parameter can be selected which is shown as below:
\arg DMA_CHx(x=0..4)
\param[out] none
\retval the number of remaining data to be transferred by the DMA
*/
uint32_t dma_transfer_number_get(dma_channel_enum channelx)
{
return (uint32_t)DMA_CHCNT(channelx);
}
/*!
\brief configure priority level of DMA channel
\param[in] channelx: specify which DMA channel to set
only one parameter can be selected which is shown as below:
\arg DMA_CHx(x=0..4)
\param[in] priority: priority level of this channel
only one parameter can be selected which is shown as below:
\arg DMA_PRIORITY_LOW: low priority
\arg DMA_PRIORITY_MEDIUM: medium priority
\arg DMA_PRIORITY_HIGH: high priority
\arg DMA_PRIORITY_ULTRA_HIGH: ultra high priority
\param[out] none
\retval none
*/
void dma_priority_config(dma_channel_enum channelx, uint32_t priority)
{
uint32_t ctl;
/* acquire DMA_CHxCTL register */
ctl = DMA_CHCTL(channelx);
/* assign regiser */
ctl &= ~DMA_CHXCTL_PRIO;
ctl |= priority;
DMA_CHCTL(channelx) = ctl;
}
/*!
\brief configure transfer data width of memory
\param[in] channelx: specify which DMA channel to set
only one parameter can be selected which is shown as below:
\arg DMA_CHx(x=0..4)
\param[in] mwidth: transfer data width of memory
only one parameter can be selected which is shown as below:
\arg DMA_MEMORY_WIDTH_8BIT: transfer data width of memory is 8-bit
\arg DMA_MEMORY_WIDTH_16BIT: transfer data width of memory is 16-bit
\arg DMA_MEMORY_WIDTH_32BIT: transfer data width of memory is 32-bit
\param[out] none
\retval none
*/
void dma_memory_width_config(dma_channel_enum channelx, uint32_t mwidth)
{
uint32_t ctl;
/* acquire DMA_CHxCTL register */
ctl = DMA_CHCTL(channelx);
/* assign regiser */
ctl &= ~DMA_CHXCTL_MWIDTH;
ctl |= mwidth;
DMA_CHCTL(channelx) = ctl;
}
/*!
\brief configure transfer data width of peripheral
\param[in] channelx: specify which DMA channel to set
only one parameter can be selected which is shown as below:
\arg DMA_CHx(x=0..4)
\param[in] pwidth: transfer data width of peripheral
only one parameter can be selected which is shown as below:
\arg DMA_PERIPHERAL_WIDTH_8BIT: transfer data width of peripheral is 8-bit
\arg DMA_PERIPHERAL_WIDTH_16BIT: transfer data width of peripheral is 16-bit
\arg DMA_PERIPHERAL_WIDTH_32BIT: transfer data width of peripheral is 32-bit
\param[out] none
\retval none
*/
void dma_periph_width_config(dma_channel_enum channelx, uint32_t pwidth)
{
uint32_t ctl;
/* acquire DMA_CHxCTL register */
ctl = DMA_CHCTL(channelx);
/* assign regiser */
ctl &= ~DMA_CHXCTL_PWIDTH;
ctl |= pwidth;
DMA_CHCTL(channelx) = ctl;
}
/*!
\brief enable next address increasement algorithm of memory
\param[in] channelx: specify which DMA channel to set
only one parameter can be selected which is shown as below:
\arg DMA_CHx(x=0..4)
\param[out] none
\retval none
*/
void dma_memory_increase_enable(dma_channel_enum channelx)
{
DMA_CHCTL(channelx) |= DMA_CHXCTL_MNAGA;
}
/*!
\brief disable next address increasement algorithm of memory
\param[in] channelx: specify which DMA channel to set
only one parameter can be selected which is shown as below:
\arg DMA_CHx(x=0..4)
\param[out] none
\retval none
*/
void dma_memory_increase_disable(dma_channel_enum channelx)
{
DMA_CHCTL(channelx) &= ~DMA_CHXCTL_MNAGA;
}
/*!
\brief enable next address increasement algorithm of peripheral
\param[in] channelx: specify which DMA channel to set
only one parameter can be selected which is shown as below:
\arg DMA_CHx(x=0..4)
\param[out] none
\retval none
*/
void dma_periph_increase_enable(dma_channel_enum channelx)
{
DMA_CHCTL(channelx) |= DMA_CHXCTL_PNAGA;
}
/*!
\brief disable next address increasement algorithm of peripheral
\param[in] channelx: specify which DMA channel to set
only one parameter can be selected which is shown as below:
\arg DMA_CHx(x=0..4)
\param[out] none
\retval none
*/
void dma_periph_increase_disable(dma_channel_enum channelx)
{
DMA_CHCTL(channelx) &= ~DMA_CHXCTL_PNAGA;
}
/*!
\brief configure the direction of data transfer on the channel
\param[in] channelx: specify which DMA channel to set
only one parameter can be selected which is shown as below:
\arg DMA_CHx(x=0..4)
\param[in] direction: specify the direction of data transfer
only one parameter can be selected which is shown as below:
\arg DMA_PERIPHERAL_TO_MEMORY: read from peripheral and write to memory
\arg DMA_MEMORY_TO_PERIPHERAL: read from memory and write to peripheral
\param[out] none
\retval none
*/
void dma_transfer_direction_config(dma_channel_enum channelx, uint8_t direction)
{
if(DMA_PERIPHERAL_TO_MEMORY == direction){
DMA_CHCTL(channelx) &= ~DMA_CHXCTL_DIR;
} else {
DMA_CHCTL(channelx) |= DMA_CHXCTL_DIR;
}
}
/*!
\brief check DMA flag is set or not
\param[in] channelx: specify which DMA channel to get flag
only one parameter can be selected which is shown as below:
\arg DMA_CHx(x=0..4)
\param[in] flag: specify get which flag
only one parameter can be selected which is shown as below:
\arg DMA_FLAG_G: global interrupt flag of channel
\arg DMA_FLAG_FTF: full transfer finish flag of channel
\arg DMA_FLAG_HTF: half transfer finish flag of channel
\arg DMA_FLAG_ERR: error flag of channel
\param[out] none
\retval FlagStatus: SET or RESET
*/
FlagStatus dma_flag_get(dma_channel_enum channelx, uint32_t flag)
{
FlagStatus reval;
if(RESET != (DMA_INTF & DMA_FLAG_ADD(flag, channelx))){
reval = SET;
}else{
reval = RESET;
}
return reval;
}
/*!
\brief clear DMA a channel flag
\param[in] channelx: specify which DMA channel to clear flag
only one parameter can be selected which is shown as below:
\arg DMA_CHx(x=0..4)
\param[in] flag: specify get which flag
only one parameter can be selected which is shown as below:
\arg DMA_FLAG_G: global interrupt flag of channel
\arg DMA_FLAG_FTF: full transfer finish flag of channel
\arg DMA_FLAG_HTF: half transfer finish flag of channel
\arg DMA_FLAG_ERR: error flag of channel
\param[out] none
\retval none
*/
void dma_flag_clear(dma_channel_enum channelx, uint32_t flag)
{
DMA_INTC |= DMA_FLAG_ADD(flag, channelx);
}
/*!
\brief check DMA flag and interrupt enable bit is set or not
\param[in] channelx: specify which DMA channel to get flag
only one parameter can be selected which is shown as below:
\arg DMA_CHx(x=0..4)
\param[in] flag: specify get which flag
only one parameter can be selected which is shown as below:
\arg DMA_INT_FLAG_FTF: transfer finish flag of channel
\arg DMA_INT_FLAG_HTF: half transfer finish flag of channel
\arg DMA_INT_FLAG_ERR: error flag of channel
\param[out] none
\retval FlagStatus: SET or RESET
*/
FlagStatus dma_interrupt_flag_get(dma_channel_enum channelx, uint32_t flag)
{
uint32_t interrupt_enable = 0U, interrupt_flag = 0U;
switch(flag){
case DMA_INT_FLAG_FTF:
interrupt_flag = DMA_INTF & DMA_FLAG_ADD(flag, channelx);
interrupt_enable = DMA_CHCTL(channelx) & DMA_CHXCTL_FTFIE;
break;
case DMA_INT_FLAG_HTF:
interrupt_flag = DMA_INTF & DMA_FLAG_ADD(flag, channelx);
interrupt_enable = DMA_CHCTL(channelx) & DMA_CHXCTL_HTFIE;
break;
case DMA_INT_FLAG_ERR:
interrupt_flag = DMA_INTF & DMA_FLAG_ADD(flag, channelx);
interrupt_enable = DMA_CHCTL(channelx) & DMA_CHXCTL_ERRIE;
break;
default:
break;
}
if(interrupt_flag && interrupt_enable){
return SET;
}else{
return RESET;
}
}
/*!
\brief clear DMA a channel interrupt flag
\param[in] channelx: specify which DMA channel to clear flag
only one parameter can be selected which is shown as below:
\arg DMA_CHx(x=0..4)
\param[in] flag: specify get which flag
only one parameter can be selected which is shown as below:
\arg DMA_INT_FLAG_G: global interrupt flag of channel
\arg DMA_INT_FLAG_FTF: transfer finish flag of channel
\arg DMA_INT_FLAG_HTF: half transfer finish flag of channel
\arg DMA_INT_FLAG_ERR: error flag of channel
\param[out] none
\retval none
*/
void dma_interrupt_flag_clear(dma_channel_enum channelx, uint32_t flag)
{
DMA_INTC |= DMA_FLAG_ADD(flag,channelx);
}
/*!
\brief enable DMA interrupt
\param[in] channelx: specify which DMA channel to set
only one parameter can be selected which is shown as below:
\arg DMA_CHx(x=0..4)
\param[in] source: specify which interrupt to enable
only one parameter can be selected which is shown as below:
\arg DMA_INT_ERR: channel error interrupt
\arg DMA_INT_HTF: channel half transfer finish interrupt
\arg DMA_INT_FTF: channel full transfer finish interrupt
\param[out] none
\retval none
*/
void dma_interrupt_enable(dma_channel_enum channelx, uint32_t source)
{
DMA_CHCTL(channelx) |= source;
}
/*!
\brief disable DMA interrupt
\param[in] channelx: specify which DMA channel to set
only one parameter can be selected which is shown as below:
\arg DMA_CHx(x=0..4)
\param[in] source: specify which interrupt to disable
only one parameter can be selected which is shown as below:
\arg DMA_INT_ERR: channel error interrupt
\arg DMA_INT_HTF: channel half transfer finish interrupt
\arg DMA_INT_FTF: channel full transfer finish interrupt
\param[out] none
\retval none
*/
void dma_interrupt_disable(dma_channel_enum channelx, uint32_t source)
{
DMA_CHCTL(channelx) &= ~source;
}

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/*!
\file gd32e23x_exti.c
\brief EXTI driver
\version 2024-02-22, V2.1.0, firmware for GD32E23x
*/
/*
Copyright (c) 2024, GigaDevice Semiconductor Inc.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.
*/
#include "gd32e23x_exti.h"
#define EXTI_INTEN_RESET_VAL ((uint32_t)0x0F900000U)
#define EXTI_REG_RESET_VAL ((uint32_t)0x00000000U)
/*!
\brief reset the value of all EXTI registers with initial values
\param[in] none
\param[out] none
\retval none
*/
void exti_deinit(void)
{
/* reset the value of the EXTI registers */
EXTI_INTEN = EXTI_INTEN_RESET_VAL;
EXTI_EVEN = EXTI_REG_RESET_VAL;
EXTI_RTEN = EXTI_REG_RESET_VAL;
EXTI_FTEN = EXTI_REG_RESET_VAL;
EXTI_SWIEV = EXTI_REG_RESET_VAL;
}
/*!
\brief initialize the EXTI line x
\param[in] linex: EXTI line number, refer to exti_line_enum
only one parameter can be selected which is shown as below:
\arg EXTI_x (x=0..17,19,21): EXTI line x
\param[in] mode: interrupt or event mode, refer to exti_mode_enum
only one parameter can be selected which is shown as below:
\arg EXTI_INTERRUPT: interrupt mode
\arg EXTI_EVENT: event mode
\param[in] trig_type: interrupt trigger type, refer to exti_trig_type_enum
only one parameter can be selected which is shown as below:
\arg EXTI_TRIG_RISING: rising edge trigger
\arg EXTI_TRIG_FALLING: falling trigger
\arg EXTI_TRIG_BOTH: rising and falling trigger
\arg EXTI_TRIG_NONE: without rising edge or falling edge trigger
\param[out] none
\retval none
*/
void exti_init(exti_line_enum linex, exti_mode_enum mode, exti_trig_type_enum trig_type)
{
/* reset the EXTI line x */
EXTI_INTEN &= ~(uint32_t)linex;
EXTI_EVEN &= ~(uint32_t)linex;
EXTI_RTEN &= ~(uint32_t)linex;
EXTI_FTEN &= ~(uint32_t)linex;
/* set the EXTI mode and enable the interrupts or events from EXTI line x */
switch(mode) {
case EXTI_INTERRUPT:
EXTI_INTEN |= (uint32_t)linex;
break;
case EXTI_EVENT:
EXTI_EVEN |= (uint32_t)linex;
break;
default:
break;
}
/* set the EXTI trigger type */
switch(trig_type) {
case EXTI_TRIG_RISING:
EXTI_RTEN |= (uint32_t)linex;
EXTI_FTEN &= ~(uint32_t)linex;
break;
case EXTI_TRIG_FALLING:
EXTI_RTEN &= ~(uint32_t)linex;
EXTI_FTEN |= (uint32_t)linex;
break;
case EXTI_TRIG_BOTH:
EXTI_RTEN |= (uint32_t)linex;
EXTI_FTEN |= (uint32_t)linex;
break;
case EXTI_TRIG_NONE:
default:
break;
}
}
/*!
\brief enable the interrupts from EXTI line x
\param[in] linex: EXTI line number, refer to exti_line_enum
only one parameter can be selected which is shown as below:
\arg EXTI_x (x=0..27): EXTI line x
\param[out] none
\retval none
*/
void exti_interrupt_enable(exti_line_enum linex)
{
EXTI_INTEN |= (uint32_t)linex;
}
/*!
\brief disable the interrupts from EXTI line x
\param[in] linex: EXTI line number, refer to exti_line_enum
only one parameter can be selected which is shown as below:
\arg EXTI_x (x=0..27): EXTI line x
\param[out] none
\retval none
*/
void exti_interrupt_disable(exti_line_enum linex)
{
EXTI_INTEN &= ~(uint32_t)linex;
}
/*!
\brief enable the events from EXTI line x
\param[in] linex: EXTI line number, refer to exti_line_enum
only one parameter can be selected which is shown as below:
\arg EXTI_x (x=0..27): EXTI line x
\param[out] none
\retval none
*/
void exti_event_enable(exti_line_enum linex)
{
EXTI_EVEN |= (uint32_t)linex;
}
/*!
\brief disable the events from EXTI line x
\param[in] linex: EXTI line number, refer to exti_line_enum
only one parameter can be selected which is shown as below:
\arg EXTI_x (x=0..27): EXTI line x
\param[out] none
\retval none
*/
void exti_event_disable(exti_line_enum linex)
{
EXTI_EVEN &= ~(uint32_t)linex;
}
/*!
\brief enable the software interrupt event from EXTI line x
\param[in] linex: EXTI line number, refer to exti_line_enum
only one parameter can be selected which is shown as below:
\arg EXTI_x (x=0..17,19,21): EXTI line x
\param[out] none
\retval none
*/
void exti_software_interrupt_enable(exti_line_enum linex)
{
EXTI_SWIEV |= (uint32_t)linex;
}
/*!
\brief disable the software interrupt event from EXTI line x
\param[in] linex: EXTI line number, refer to exti_line_enum
only one parameter can be selected which is shown as below:
\arg EXTI_x (x=0..17,19,21): EXTI line x
\param[out] none
\retval none
*/
void exti_software_interrupt_disable(exti_line_enum linex)
{
EXTI_SWIEV &= ~(uint32_t)linex;
}
/*!
\brief get EXTI line x interrupt pending flag
\param[in] linex: EXTI line number, refer to exti_line_enum
only one parameter can be selected which is shown as below:
\arg EXTI_x (x=0..17,19,21): EXTI line x
\param[out] none
\retval FlagStatus: status of flag (RESET or SET)
*/
FlagStatus exti_flag_get(exti_line_enum linex)
{
if(RESET != (EXTI_PD & (uint32_t)linex)) {
return SET;
} else {
return RESET;
}
}
/*!
\brief clear EXTI line x interrupt pending flag
\param[in] linex: EXTI line number, refer to exti_line_enum
only one parameter can be selected which is shown as below:
\arg EXTI_x (x=0..17,19,21): EXTI line x
\param[out] none
\retval none
*/
void exti_flag_clear(exti_line_enum linex)
{
EXTI_PD = (uint32_t)linex;
}
/*!
\brief get EXTI line x interrupt pending flag
\param[in] linex: EXTI line number, refer to exti_line_enum
only one parameter can be selected which is shown as below:
\arg EXTI_x (x=0..17,19,21): EXTI line x
\param[out] none
\retval FlagStatus: status of flag (RESET or SET)
*/
FlagStatus exti_interrupt_flag_get(exti_line_enum linex)
{
if(RESET != (EXTI_PD & (uint32_t)linex)) {
return SET;
} else {
return RESET;
}
}
/*!
\brief clear EXTI line x interrupt pending flag
\param[in] linex: EXTI line number, refer to exti_line_enum
only one parameter can be selected which is shown as below:
\arg EXTI_x (x=0..17,19,21): EXTI line x
\param[out] none
\retval none
*/
void exti_interrupt_flag_clear(exti_line_enum linex)
{
EXTI_PD = (uint32_t)linex;
}

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/*!
\file gd32e23x_fmc.c
\brief FMC driver
\version 2024-02-22, V2.1.0, firmware for GD32E23x
*/
/*
Copyright (c) 2024, GigaDevice Semiconductor Inc.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.
*/
#include "gd32e23x_fmc.h"
/* FMC register bit offset */
#define OB_HIGH_WP_OFFSET ((uint32_t)8U)
#define FMC_OBSTAT_USER_OFFSET ((uint32_t)8U)
#define FMC_OBSTAT_DATA_OFFSET ((uint32_t)16U)
/*!
\brief unlock the main FMC operation
it is better to used in pairs with fmc_lock
\param[in] none
\param[out] none
\retval none
*/
void fmc_unlock(void)
{
if((RESET != (FMC_CTL & FMC_CTL_LK))){
/* write the FMC key */
FMC_KEY = UNLOCK_KEY0;
FMC_KEY = UNLOCK_KEY1;
}
}
/*!
\brief lock the main FMC operation
it is better to used in pairs with fmc_unlock after an operation
\param[in] none
\param[out] none
\retval none
*/
void fmc_lock(void)
{
/* set the LK bit*/
FMC_CTL |= FMC_CTL_LK;
}
/*!
\brief set the wait state counter value
\param[in] wscnt: wait state counter value
\arg WS_WSCNT_0: 0 wait state added
\arg WS_WSCNT_1: 1 wait state added
\arg WS_WSCNT_2: 2 wait state added
\param[out] none
\retval none
*/
void fmc_wscnt_set(uint8_t wscnt)
{
uint32_t reg;
reg = FMC_WS;
/* set the wait state counter value */
reg &= ~FMC_WS_WSCNT;
FMC_WS = (reg | wscnt);
}
/*!
\brief pre-fetch enable
\param[in] none
\param[out] none
\retval none
*/
void fmc_prefetch_enable(void)
{
FMC_WS |= FMC_WS_PFEN;
}
/*!
\brief pre-fetch disable
\param[in] none
\param[out] none
\retval none
*/
void fmc_prefetch_disable(void)
{
FMC_WS &= ~FMC_WS_PFEN;
}
/*!
\brief erase page
\param[in] page_address: target page start address
\param[out] none
\retval fmc_state: state of FMC
\arg FMC_READY: the operation has been completed
\arg FMC_BUSY: the operation is in progress
\arg FMC_PGERR: program error
\arg FMC_PGAERR: program alignment error
\arg FMC_WPERR: erase/program protection error
\arg FMC_TOERR: timeout error
\arg FMC_OB_HSPC: option byte security protection code high
*/
fmc_state_enum fmc_page_erase(uint32_t page_address)
{
fmc_state_enum fmc_state = fmc_ready_wait(FMC_TIMEOUT_COUNT);
if(FMC_READY == fmc_state){
/* start page erase */
FMC_CTL |= FMC_CTL_PER;
FMC_ADDR = page_address;
FMC_CTL |= FMC_CTL_START;
/* wait for the FMC ready */
fmc_state = fmc_ready_wait(FMC_TIMEOUT_COUNT);
/* reset the PER bit */
FMC_CTL &= ~FMC_CTL_PER;
}
/* return the FMC state */
return fmc_state;
}
/*!
\brief erase whole chip
\param[in] none
\param[out] none
\retval fmc_state: state of FMC
\arg FMC_READY: the operation has been completed
\arg FMC_BUSY: the operation is in progress
\arg FMC_PGERR: program error
\arg FMC_PGAERR: program alignment error
\arg FMC_WPERR: erase/program protection error
\arg FMC_TOERR: timeout error
\arg FMC_OB_HSPC: option byte security protection code high
*/
fmc_state_enum fmc_mass_erase(void)
{
fmc_state_enum fmc_state = fmc_ready_wait(FMC_TIMEOUT_COUNT);
if(FMC_READY == fmc_state){
/* start chip erase */
FMC_CTL |= FMC_CTL_MER;
FMC_CTL |= FMC_CTL_START;
/* wait for the FMC ready */
fmc_state = fmc_ready_wait(FMC_TIMEOUT_COUNT);
/* reset the MER bit */
FMC_CTL &= ~FMC_CTL_MER;
}
/* return the fmc state */
return fmc_state;
}
/*!
\brief program a double word at the corresponding address in main flash, this
function also applies to OTP(address 0x1FFF_7000~0x1FFF_73FF) programming
\param[in] address: address to program
\param[in] data: double word to program
\param[out] none
\retval fmc_state: state of FMC
\arg FMC_READY: the operation has been completed
\arg FMC_BUSY: the operation is in progress
\arg FMC_PGERR: program error
\arg FMC_PGAERR: program alignment error
\arg FMC_WPERR: erase/program protection error
\arg FMC_TOERR: timeout error
\arg FMC_OB_HSPC: option byte security protection code high
*/
fmc_state_enum fmc_doubleword_program(uint32_t address, uint64_t data)
{
uint32_t data0, data1;
fmc_state_enum fmc_state = fmc_ready_wait(FMC_TIMEOUT_COUNT);
data0 = (uint32_t)(data & 0xFFFFFFFFU);
data1 = (uint32_t)((data>>32U) & 0xFFFFFFFFU);
/* configure program width */
FMC_WS |= FMC_WS_PGW;
if(FMC_READY == fmc_state){
/* set the PG bit to start program */
FMC_CTL |= FMC_CTL_PG;
REG32(address) = data0;
REG32(address+4U) = data1;
/* wait for the FMC ready */
fmc_state = fmc_ready_wait(FMC_TIMEOUT_COUNT);
/* reset the PG bit */
FMC_CTL &= ~FMC_CTL_PG;
}
FMC_WS &= ~(FMC_WS_PGW);
/* return the FMC state */
return fmc_state;
}
/*!
\brief program a word at the corresponding address in main flash, this function
also applies to OTP(address 0x1FFF_7000~0x1FFF_73FF) programming
\param[in] address: address to program
\param[in] data: word to program
\param[out] none
\retval fmc_state: state of FMC
\arg FMC_READY: the operation has been completed
\arg FMC_BUSY: the operation is in progress
\arg FMC_PGERR: program error
\arg FMC_PGAERR: program alignment error
\arg FMC_WPERR: erase/program protection error
\arg FMC_TOERR: timeout error
\arg FMC_OB_HSPC: option byte security protection code high
*/
fmc_state_enum fmc_word_program(uint32_t address, uint32_t data)
{
fmc_state_enum fmc_state = fmc_ready_wait(FMC_TIMEOUT_COUNT);
if(FMC_READY == fmc_state){
/* set the PG bit to start program */
FMC_CTL |= FMC_CTL_PG;
REG32(address) = data;
/* wait for the FMC ready */
fmc_state = fmc_ready_wait(FMC_TIMEOUT_COUNT);
/* reset the PG bit */
FMC_CTL &= ~FMC_CTL_PG;
}
/* return the FMC state */
return fmc_state;
}
/*!
\brief unlock the option byte operation
it is better to used in pairs with ob_lock
\param[in] none
\param[out] none
\retval none
*/
void ob_unlock(void)
{
if(RESET == (FMC_CTL & FMC_CTL_OBWEN)){
/* write the FMC key */
FMC_OBKEY = UNLOCK_KEY0;
FMC_OBKEY = UNLOCK_KEY1;
}
/* wait until OBWEN bit is set by hardware */
while(RESET == (FMC_CTL & FMC_CTL_OBWEN)){
}
}
/*!
\brief lock the option byte operation
it is better to used in pairs with ob_unlock after an operation
\param[in] none
\param[out] none
\retval none
*/
void ob_lock(void)
{
/* reset the OBWE bit */
FMC_CTL &= ~FMC_CTL_OBWEN;
}
/*!
\brief reload the option byte and generate a system reset
\param[in] none
\param[out] none
\retval none
*/
void ob_reset(void)
{
/* set the OBRLD bit */
FMC_CTL |= FMC_CTL_OBRLD;
}
/*!
\brief get option byte value
\param[in] addr: address of option byte
\arg OB_SPC_USER_ADDRESS: address of option byte security protection and user
\arg OB_DATA_ADDRESS: address of option byte data
\arg OB_WP_ADDRESS: address of option byte write protection
\param[out] option byte value
*/
uint32_t option_byte_value_get(uint32_t addr)
{
return *(volatile uint32_t *)(addr);
}
/*!
\brief erase the option byte
programmer must ensure FMC & option byte are both unlocked before calling this function
\param[in] none
\param[out] none
\retval fmc_state: state of FMC
\arg FMC_READY: the operation has been completed
\arg FMC_BUSY: the operation is in progress
\arg FMC_PGERR: program error
\arg FMC_PGAERR: program alignment error
\arg FMC_WPERR: erase/program protection error
\arg FMC_TOERR: timeout error
\arg FMC_OB_HSPC: option byte security protection code high
*/
fmc_state_enum ob_erase(void)
{
uint16_t fmc_spc;
uint32_t val;
uint32_t fmc_plevel = ob_obstat_plevel_get();
fmc_state_enum fmc_state = fmc_ready_wait(FMC_TIMEOUT_COUNT);
/* get the original option byte security protection code */
if(OB_OBSTAT_PLEVEL_NO == fmc_plevel){
fmc_spc = FMC_NSPC;
}else if(OB_OBSTAT_PLEVEL_LOW == fmc_plevel){
fmc_spc = FMC_LSPC;
}else{
fmc_spc = FMC_HSPC;
fmc_state = FMC_OB_HSPC;
}
val = HIGH_16BITS_MASK | (uint32_t)fmc_spc;
if(FMC_READY == fmc_state){
/* start erase the option byte */
FMC_CTL |= FMC_CTL_OBER;
FMC_CTL |= FMC_CTL_START;
/* wait for the FMC ready */
fmc_state = fmc_ready_wait(FMC_TIMEOUT_COUNT);
if(FMC_READY == fmc_state){
/* reset the OBER bit */
FMC_CTL &= ~FMC_CTL_OBER;
/* set the OBPG bit */
FMC_CTL |= FMC_CTL_OBPG;
/* restore the last get option byte security protection code */
OB_SPC_USER = val;
/* wait for the FMC ready */
fmc_state = fmc_ready_wait(FMC_TIMEOUT_COUNT);
if(FMC_TOERR != fmc_state){
/* reset the OBPG bit */
FMC_CTL &= ~FMC_CTL_OBPG;
}
}else{
if(FMC_TOERR != fmc_state){
/* reset the OBER bit */
FMC_CTL &= ~FMC_CTL_OBER;
}
}
}
/* return the FMC state */
return fmc_state;
}
/*!
\brief enable option byte write protection (OB_WP)
\param[in] ob_wp: write protection configuration data. Notice that set the
bit to 1 if you want to protect the corresponding pages.
\param[out] none
\retval fmc_state: state of FMC
\arg FMC_READY: the operation has been completed
\arg FMC_BUSY: the operation is in progress
\arg FMC_PGERR: program error
\arg FMC_PGAERR: program alignment error
\arg FMC_WPERR: erase/program protection error
\arg FMC_TOERR: timeout error
\arg FMC_OB_HSPC: option byte security protection code high
*/
fmc_state_enum ob_write_protection_enable(uint32_t ob_wp)
{
uint32_t ob_wrp_val = 0U;
fmc_state_enum fmc_state = fmc_ready_wait(FMC_TIMEOUT_COUNT);
ob_wp = ~ob_wp;
ob_wrp_val |= (uint32_t)ob_wp&0x00FFU;
ob_wrp_val |= (((uint32_t)ob_wp&0xFF00U)>>8U) << 16U;
if(FMC_READY == fmc_state){
/* set the OBPG bit*/
FMC_CTL |= FMC_CTL_OBPG;
if(0xFFFFFFFFU != ob_wrp_val){
OB_WP = ob_wrp_val;
/* wait for the FMC ready */
fmc_state = fmc_ready_wait(FMC_TIMEOUT_COUNT);
}
ob_wrp_val |= (uint32_t)(ob_wp>>16)&0x00FFU;
ob_wrp_val |= (((uint32_t)(ob_wp>>16)&0xFF00U)>>8U) << 16U;
if(0xFFFFFFFFU != ob_wrp_val){
REG32((OB) + 0x0CU) = ob_wrp_val;
/* wait for the FMC ready */
fmc_state = fmc_ready_wait(FMC_TIMEOUT_COUNT);
}
if(FMC_TOERR != fmc_state){
/* reset the OBPG bit */
FMC_CTL &= ~FMC_CTL_OBPG;
}
}
/* return the FMC state */
return fmc_state;
}
/*!
\brief configure security protection
\param[in] ob_spc: specify security protection code
\arg FMC_NSPC: no security protection
\arg FMC_LSPC: low security protection
\arg FMC_HSPC: high security protection
\param[out] none
\retval fmc_state: state of FMC
\arg FMC_READY: the operation has been completed
\arg FMC_BUSY: the operation is in progress
\arg FMC_PGERR: program error
\arg FMC_PGAERR: program alignment error
\arg FMC_WPERR: erase/program protection error
\arg FMC_TOERR: timeout error
\arg FMC_OB_HSPC: option byte security protection code high
*/
fmc_state_enum ob_security_protection_config(uint16_t ob_spc)
{
uint32_t val;
fmc_state_enum fmc_state = fmc_ready_wait(FMC_TIMEOUT_COUNT);
val = option_byte_value_get(OB_SPC_USER_ADDRESS);
/* the OB_SPC byte cannot be reprogrammed if protection level is high */
if(OB_OBSTAT_PLEVEL_HIGH == ob_obstat_plevel_get()){
fmc_state = FMC_OB_HSPC;
}
val &= ~LOW_16BITS_MASK;
val |= (uint32_t)ob_spc;
if(FMC_READY == fmc_state){
/* start erase the option byte */
FMC_CTL |= FMC_CTL_OBER;
FMC_CTL |= FMC_CTL_START;
/* wait for the FMC ready */
fmc_state = fmc_ready_wait(FMC_TIMEOUT_COUNT);
if(FMC_READY == fmc_state){
/* reset the OBER bit */
FMC_CTL &= ~FMC_CTL_OBER;
/* enable the option bytes programming */
FMC_CTL |= FMC_CTL_OBPG;
OB_SPC_USER = val;
/* wait for the FMC ready */
fmc_state = fmc_ready_wait(FMC_TIMEOUT_COUNT);
if(FMC_TOERR != fmc_state){
/* reset the OBPG bit */
FMC_CTL &= ~FMC_CTL_OBPG;
}
}else{
if(FMC_TOERR != fmc_state){
/* reset the OBER bit */
FMC_CTL &= ~FMC_CTL_OBER;
}
}
}
/* return the FMC state */
return fmc_state;
}
/*!
\brief program the FMC user option byte
this function can only clear the corresponding bits to be 0 rather than 1.
the function ob_erase is used to set all the bits to be 1.
\param[in] ob_user: user option byte
one or more parameters (bitwise AND) can be selected which are shown as below:
\arg OB_FWDGT_HW: hardware free watchdog timer
\arg OB_DEEPSLEEP_RST: no reset when entering deepsleep mode
\arg OB_STDBY_RST: no reset when entering standby mode
\arg OB_BOOT1_SET_1: BOOT1 bit is 1
\arg OB_VDDA_DISABLE: disable VDDA monitor
\arg OB_SRAM_PARITY_ENABLE: enable sram parity check
\param[out] none
\retval fmc_state: state of FMC
\arg FMC_READY: the operation has been completed
\arg FMC_BUSY: the operation is in progress
\arg FMC_PGERR: program error
\arg FMC_PGAERR: program alignment error
\arg FMC_WPERR: erase/program protection error
\arg FMC_TOERR: timeout error
\arg FMC_OB_HSPC: option byte security protection code high
*/
fmc_state_enum ob_user_write(uint8_t ob_user)
{
uint32_t val_spc_user;
/* check whether FMC is ready or not */
fmc_state_enum fmc_state = fmc_ready_wait(FMC_TIMEOUT_COUNT);
val_spc_user = option_byte_value_get(OB_SPC_USER_ADDRESS);
val_spc_user &= ~HIGH_16BITS_MASK;
val_spc_user |= ((uint32_t)ob_user<<16U);
if(FMC_READY == fmc_state){
/* start erase the option byte */
FMC_CTL |= FMC_CTL_OBER;
FMC_CTL |= FMC_CTL_START;
/* wait for the FMC ready */
fmc_state = fmc_ready_wait(FMC_TIMEOUT_COUNT);
if(FMC_READY == fmc_state){
/* reset the OBER bit */
FMC_CTL &= ~FMC_CTL_OBER;
/* enable the option bytes programming */
FMC_CTL |= FMC_CTL_OBPG;
OB_SPC_USER = val_spc_user;
/* wait for the FMC ready */
fmc_state = fmc_ready_wait(FMC_TIMEOUT_COUNT);
if(FMC_TOERR != fmc_state){
/* reset the OBPG bit */
FMC_CTL &= ~FMC_CTL_OBPG;
}
}else{
if(FMC_TOERR != fmc_state){
/* reset the OBER bit */
FMC_CTL &= ~FMC_CTL_OBER;
}
}
}
/* return the FMC state */
return fmc_state;
}
/*!
\brief program the FMC data option byte
\param[in] data: the data to be programmed, OB_DATA[0:15]
\param[out] none
\retval fmc_state: state of FMC
\arg FMC_READY: the operation has been completed
\arg FMC_BUSY: the operation is in progress
\arg FMC_PGERR: program error
\arg FMC_PGAERR: program alignment error
\arg FMC_WPERR: erase/program protection error
\arg FMC_TOERR: timeout error
\arg FMC_OB_HSPC: option byte security protection code high
*/
fmc_state_enum ob_data_program(uint16_t data)
{
fmc_state_enum fmc_state = fmc_ready_wait(FMC_TIMEOUT_COUNT);
uint32_t val = 0U;
val |= (uint32_t)data&0x00FFU;
val |= (((uint32_t)data&0xFF00U)>>8U) << 16U;
if(FMC_READY == fmc_state){
/* set the OBPG bit */
FMC_CTL |= FMC_CTL_OBPG;
OB_DATA = val;
/* wait for the FMC ready */
fmc_state = fmc_ready_wait(FMC_TIMEOUT_COUNT);
if(FMC_TOERR != fmc_state){
/* reset the OBPG bit */
FMC_CTL &= ~FMC_CTL_OBPG;
}
}
/* return the FMC state */
return fmc_state;
}
/*!
\brief get OB_USER in register FMC_OBSTAT
\param[in] none
\param[out] none
\retval ob_user
*/
uint8_t ob_user_get(void)
{
return (uint8_t)(FMC_OBSTAT >> FMC_OBSTAT_USER_OFFSET);
}
/*!
\brief get OB_DATA in register FMC_OBSTAT
\param[in] none
\param[out] none
\retval ob_data
*/
uint16_t ob_data_get(void)
{
return (uint16_t)(FMC_OBSTAT >> FMC_OBSTAT_DATA_OFFSET);
}
/*!
\brief get the FMC option byte write protection (OB_WP) in register FMC_WP
\param[in] none
\param[out] none
\retval OB_WP
*/
uint32_t ob_write_protection_get(void)
{
return (uint32_t)(FMC_WP);
}
/*!
\brief get the value of FMC option byte security protection level (PLEVEL) in FMC_OBSTAT register
\param[in] none
\param[out] none
\retval the value of PLEVEL
\arg OB_OBSTAT_PLEVEL_NO: no security protection
\arg OB_OBSTAT_PLEVEL_LOW: low security protection
\arg OB_OBSTAT_PLEVEL_HIGH: high security protection
*/
uint32_t ob_obstat_plevel_get(void)
{
return (FMC_OBSTAT & (FMC_OBSTAT_PLEVEL_BIT0 | FMC_OBSTAT_PLEVEL_BIT1));
}
/* FMC interrupts and flags management functions */
/*!
\brief enable FMC interrupt
\param[in] interrupt: the FMC interrupt source
\arg FMC_INTEN_END: FMC end of operation interrupt
\arg FMC_INTEN_ERR: FMC error interrupt
\param[out] none
\retval none
*/
void fmc_interrupt_enable(uint32_t interrupt)
{
FMC_CTL |= interrupt;
}
/*!
\brief disable FMC interrupt
\param[in] interrupt: the FMC interrupt source
\arg FMC_INTEN_END: FMC end of operation interrupt
\arg FMC_INTEN_ERR: FMC error interrupt
\param[out] none
\retval none
*/
void fmc_interrupt_disable(uint32_t interrupt)
{
FMC_CTL &= ~(uint32_t)interrupt;
}
/*!
\brief get flag set or reset
\param[in] flag: check FMC flag
only one parameter can be selected which is shown as below:
\arg FMC_FLAG_BUSY: FMC busy flag
\arg FMC_FLAG_PGERR: FMC programming error flag
\arg FMC_FLAG_PGAERR: FMC program alignment error flag
\arg FMC_FLAG_WPERR: FMC write protection error flag
\arg FMC_FLAG_END: FMC end of programming flag
\param[out] none
\retval FlagStatus: SET or RESET
*/
FlagStatus fmc_flag_get(uint32_t flag)
{
FlagStatus status = RESET;
if(FMC_STAT & flag){
status = SET;
}
/* return the state of corresponding FMC flag */
return status;
}
/*!
\brief clear the FMC pending flag by writing 1
\param[in] flag: clear FMC flag
one or more parameters can be selected which is shown as below:
\arg FMC_FLAG_PGERR: FMC programming error flag
\arg FMC_FLAG_PGAERR: FMC program alignment error flag
\arg FMC_FLAG_WPERR: FMC write protection error flag
\arg FMC_FLAG_END: FMC end of programming flag
\param[out] none
\retval none
*/
void fmc_flag_clear(uint32_t flag)
{
/* clear the flags */
FMC_STAT = flag;
}
/*!
\brief get intrrupt flag set or reset
\param[in] flag: check FMC flag
only one parameter can be selected which is shown as below:
\arg FMC_INT_FLAG_PGERR: FMC programming error flag
\arg FMC_INT_FLAG_PGAERR: FMC program alignment error flag
\arg FMC_INT_FLAG_WPERR: FMC write protection error flag
\arg FMC_INT_FLAG_END: FMC end of programming flag
\param[out] none
\retval FlagStatus: SET or RESET
*/
FlagStatus fmc_interrupt_flag_get(uint32_t int_flag)
{
uint32_t intenable = 0U, flagstatus = 0U;
if(FMC_INT_FLAG_END == int_flag){
/* get the interrupt enable bit status */
intenable = FMC_CTL & FMC_INTEN_END;
/* get the corresponding flag bit status */
flagstatus = FMC_STAT & int_flag;
if(intenable && flagstatus){
return SET;
}else{
return RESET;
}
}else{
/* get the interrupt enable bit status */
intenable = FMC_CTL & FMC_INTEN_ERR;
/* get the corresponding flag bit status */
flagstatus = FMC_STAT & int_flag;
if(intenable && flagstatus){
return SET;
}else{
return RESET;
}
}
}
/*!
\brief clear the FMC interrupt pending flag by writing 1
\param[in] flag: clear FMC flag
one or more parameters can be selected which is shown as below:
\arg FMC_INT_FLAG_PGERR: FMC programming error flag
\arg FMC_INT_FLAG_PGAERR: FMC program alignment error flag
\arg FMC_INT_FLAG_WPERR: FMC write protection error flag
\arg FMC_INT_FLAG_END: FMC end of programming flag
\param[out] none
\retval none
*/
void fmc_interrupt_flag_clear(uint32_t int_flag)
{
/* clear the flags */
FMC_STAT = int_flag;
}
/*!
\brief get the FMC state
\param[in] none
\param[out] none
\retval fmc_state
*/
fmc_state_enum fmc_state_get(void)
{
fmc_state_enum fmc_state = FMC_READY;
if((uint32_t)0x00U != (FMC_STAT & FMC_STAT_BUSY)){
fmc_state = FMC_BUSY;
}else{
if((uint32_t)0x00U != (FMC_STAT & FMC_STAT_WPERR)){
fmc_state = FMC_WPERR;
}else{
if((uint32_t)0x00U != (FMC_STAT & FMC_STAT_PGERR)){
fmc_state = FMC_PGERR;
}
}
}
/* return the FMC state */
return fmc_state;
}
/*!
\brief check whether FMC is ready or not
\param[in] timeout: timeout count
\param[out] none
\retval fmc_state
*/
fmc_state_enum fmc_ready_wait(uint32_t timeout)
{
fmc_state_enum fmc_state = FMC_BUSY;
/* wait for FMC ready */
do{
/* get FMC state */
fmc_state = fmc_state_get();
timeout--;
}while((FMC_BUSY == fmc_state) && (0U != timeout));
if(FMC_BUSY == fmc_state){
fmc_state = FMC_TOERR;
}
/* return the FMC state */
return fmc_state;
}

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sdk/GD32E23x_standard_peripheral/Src/gd32e23x_fwdgt.c Normal file
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/*!
\file gd32e23x_fwdgt.c
\brief FWDGT driver
\version 2024-02-22, V2.1.0, firmware for GD32E23x
*/
/*
Copyright (c) 2024, GigaDevice Semiconductor Inc.
All rights reserved.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.
*/
#include "gd32e23x_fwdgt.h"
/*!
\brief enable write access to FWDGT_PSC and FWDGT_RLD and FWDGT_WND
\param[in] none
\param[out] none
\retval none
*/
void fwdgt_write_enable(void)
{
FWDGT_CTL = FWDGT_WRITEACCESS_ENABLE;
}
/*!
\brief disable write access to FWDGT_PSC,FWDGT_RLD and FWDGT_WND
\param[in] none
\param[out] none
\retval none
*/
void fwdgt_write_disable(void)
{
FWDGT_CTL = FWDGT_WRITEACCESS_DISABLE;
}
/*!
\brief start the free watchdog timer counter
\param[in] none
\param[out] none
\retval none
*/
void fwdgt_enable(void)
{
FWDGT_CTL = FWDGT_KEY_ENABLE;
}
/*!
\brief configure the free watchdog timer counter prescaler value
\param[in] prescaler_value: specify prescaler value
only one parameter can be selected which is shown as below:
\arg FWDGT_PSC_DIV4: FWDGT prescaler set to 4
\arg FWDGT_PSC_DIV8: FWDGT prescaler set to 8
\arg FWDGT_PSC_DIV16: FWDGT prescaler set to 16
\arg FWDGT_PSC_DIV32: FWDGT prescaler set to 32
\arg FWDGT_PSC_DIV64: FWDGT prescaler set to 64
\arg FWDGT_PSC_DIV128: FWDGT prescaler set to 128
\arg FWDGT_PSC_DIV256: FWDGT prescaler set to 256
\param[out] none
\retval ErrStatus: ERROR or SUCCESS
*/
ErrStatus fwdgt_prescaler_value_config(uint16_t prescaler_value)
{
uint32_t timeout = FWDGT_PSC_TIMEOUT;
uint32_t flag_status = RESET;
/* enable write access to FWDGT_PSC */
FWDGT_CTL = FWDGT_WRITEACCESS_ENABLE;
/* wait until the PUD flag to be reset */
do{
flag_status = FWDGT_STAT & FWDGT_STAT_PUD;
}while((--timeout > 0U) && ((uint32_t)RESET != flag_status));
if ((uint32_t)RESET != flag_status){
return ERROR;
}
/* configure FWDGT */
FWDGT_PSC = (uint32_t)prescaler_value;
return SUCCESS;
}
/*!
\brief configure the free watchdog timer counter reload value
\param[in] reload_value: specify reload value(0x0000 - 0x0FFF)
\param[out] none
\retval ErrStatus: ERROR or SUCCESS
*/
ErrStatus fwdgt_reload_value_config(uint16_t reload_value)
{
uint32_t timeout = FWDGT_RLD_TIMEOUT;
uint32_t flag_status = RESET;
/* enable write access to FWDGT_RLD */
FWDGT_CTL = FWDGT_WRITEACCESS_ENABLE;
/* wait until the RUD flag to be reset */
do{
flag_status = FWDGT_STAT & FWDGT_STAT_RUD;
}while((--timeout > 0U) && ((uint32_t)RESET != flag_status));
if ((uint32_t)RESET != flag_status){
return ERROR;
}
FWDGT_RLD = RLD_RLD(reload_value);
return SUCCESS;
}
/*!
\brief configure the free watchdog timer counter window value
\param[in] window_value: specify window value(0x0000 - 0x0FFF)
\param[out] none
\retval ErrStatus: ERROR or SUCCESS
*/
ErrStatus fwdgt_window_value_config(uint16_t window_value)
{
uint32_t time_index = FWDGT_WND_TIMEOUT;
uint32_t flag_status = RESET;
/* enable write access to FWDGT_WND */
FWDGT_CTL = FWDGT_WRITEACCESS_ENABLE;
/* wait until the WUD flag to be reset */
do{
flag_status = FWDGT_STAT & FWDGT_STAT_WUD;
}while((--time_index > 0U) && ((uint32_t)RESET != flag_status));
if ((uint32_t)RESET != flag_status){
return ERROR;
}
FWDGT_WND = WND_WND(window_value);
return SUCCESS;
}
/*!
\brief reload the counter of FWDGT
\param[in] none
\param[out] none
\retval none
*/
void fwdgt_counter_reload(void)
{
FWDGT_CTL = FWDGT_KEY_RELOAD;
}
/*!
\brief configure counter reload value, and prescaler divider value
\param[in] reload_value: specify reload value(0x0000 - 0x0FFF)
\param[in] prescaler_div: FWDGT prescaler value
only one parameter can be selected which is shown as below:
\arg FWDGT_PSC_DIV4: FWDGT prescaler set to 4
\arg FWDGT_PSC_DIV8: FWDGT prescaler set to 8
\arg FWDGT_PSC_DIV16: FWDGT prescaler set to 16
\arg FWDGT_PSC_DIV32: FWDGT prescaler set to 32
\arg FWDGT_PSC_DIV64: FWDGT prescaler set to 64
\arg FWDGT_PSC_DIV128: FWDGT prescaler set to 128
\arg FWDGT_PSC_DIV256: FWDGT prescaler set to 256
\param[out] none
\retval ErrStatus: ERROR or SUCCESS
*/
ErrStatus fwdgt_config(uint16_t reload_value, uint8_t prescaler_div)
{
uint32_t timeout = FWDGT_PSC_TIMEOUT;
uint32_t flag_status = RESET;
/* enable write access to FWDGT_PSC,and FWDGT_RLD */
FWDGT_CTL = FWDGT_WRITEACCESS_ENABLE;
/* wait until the PUD flag to be reset */
do{
flag_status = FWDGT_STAT & FWDGT_STAT_PUD;
}while((--timeout > 0U) && ((uint32_t)RESET != flag_status));
if ((uint32_t)RESET != flag_status){
return ERROR;
}
/* configure FWDGT */
FWDGT_PSC = (uint32_t)prescaler_div;
timeout = FWDGT_RLD_TIMEOUT;
/* wait until the RUD flag to be reset */
do{
flag_status = FWDGT_STAT & FWDGT_STAT_RUD;
}while((--timeout > 0U) && ((uint32_t)RESET != flag_status));
if ((uint32_t)RESET != flag_status){
return ERROR;
}
FWDGT_RLD = RLD_RLD(reload_value);
/* reload the counter */
FWDGT_CTL = FWDGT_KEY_RELOAD;
return SUCCESS;
}
/*!
\brief get flag state of FWDGT
\param[in] flag: flag to get
only one parameter can be selected which is shown as below:
\arg FWDGT_FLAG_PUD: a write operation to FWDGT_PSC register is on going
\arg FWDGT_FLAG_RUD: a write operation to FWDGT_RLD register is on going
\arg FWDGT_FLAG_WUD: a write operation to FWDGT_WND register is on going
\param[out] none
\retval FlagStatus: SET or RESET
*/
FlagStatus fwdgt_flag_get(uint16_t flag)
{
if(RESET != (FWDGT_STAT & flag)){
return SET;
}
return RESET;
}

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sdk/GD32E23x_standard_peripheral/Src/gd32e23x_gpio.c Normal file
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/*!
\file gd32e23x_gpio.c
\brief GPIO driver
\version 2024-02-22, V2.1.0, firmware for GD32E23x
*/
/*
Copyright (c) 2024, GigaDevice Semiconductor Inc.
All rights reserved.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.
*/
#include "gd32e23x_gpio.h"
/*!
\brief reset GPIO port
\param[in] gpio_periph: GPIOx(x = A,B,C,F)
only one parameter can be selected which is shown as below:
\arg GPIOx(x = A,B,C,F)
\param[out] none
\retval none
*/
void gpio_deinit(uint32_t gpio_periph)
{
switch(gpio_periph){
case GPIOA:
/* reset GPIOA */
rcu_periph_reset_enable(RCU_GPIOARST);
rcu_periph_reset_disable(RCU_GPIOARST);
break;
case GPIOB:
/* reset GPIOB */
rcu_periph_reset_enable(RCU_GPIOBRST);
rcu_periph_reset_disable(RCU_GPIOBRST);
break;
case GPIOC:
/* reset GPIOC */
rcu_periph_reset_enable(RCU_GPIOCRST);
rcu_periph_reset_disable(RCU_GPIOCRST);
break;
case GPIOF:
/* reset GPIOF */
rcu_periph_reset_enable(RCU_GPIOFRST);
rcu_periph_reset_disable(RCU_GPIOFRST);
break;
default:
break;
}
}
/*!
\brief set GPIO mode
\param[in] gpio_periph: GPIOx(x = A,B,C,F)
only one parameter can be selected which is shown as below:
\arg GPIOx(x = A,B,C,F)
\param[in] mode: gpio pin mode
\arg GPIO_MODE_INPUT: input mode
\arg GPIO_MODE_OUTPUT: output mode
\arg GPIO_MODE_AF: alternate function mode
\arg GPIO_MODE_ANALOG: analog mode
\param[in] pull_up_down: gpio pin with pull-up or pull-down resistor
\arg GPIO_PUPD_NONE: floating mode, no pull-up and pull-down resistors
\arg GPIO_PUPD_PULLUP: with pull-up resistor
\arg GPIO_PUPD_PULLDOWN:with pull-down resistor
\param[in] pin: GPIO pin
one or more parameters can be selected which are shown as below:
\arg GPIO_PIN_x(x=0..15), GPIO_PIN_ALL
\param[out] none
\retval none
*/
void gpio_mode_set(uint32_t gpio_periph, uint32_t mode, uint32_t pull_up_down, uint32_t pin)
{
uint16_t i;
uint32_t ctl, pupd;
ctl = GPIO_CTL(gpio_periph);
pupd = GPIO_PUD(gpio_periph);
for(i = 0U;i < 16U;i++){
if((1U << i) & pin){
/* clear the specified pin mode bits */
ctl &= ~GPIO_MODE_MASK(i);
/* set the specified pin mode bits */
ctl |= GPIO_MODE_SET(i, mode);
/* clear the specified pin pupd bits */
pupd &= ~GPIO_PUPD_MASK(i);
/* set the specified pin pupd bits */
pupd |= GPIO_PUPD_SET(i, pull_up_down);
}
}
GPIO_CTL(gpio_periph) = ctl;
GPIO_PUD(gpio_periph) = pupd;
}
/*!
\brief set GPIO output type and speed
\param[in] gpio_periph: GPIOx(x = A,B,C,F)
only one parameter can be selected which is shown as below:
\arg GPIOx(x = A,B,C,F)
\param[in] otype: gpio pin output mode
\arg GPIO_OTYPE_PP: push pull mode
\arg GPIO_OTYPE_OD: open drain mode
\param[in] speed: gpio pin output max speed
\arg GPIO_OSPEED_2MHZ: output max speed 2MHz
\arg GPIO_OSPEED_10MHZ: output max speed 10MHz
\arg GPIO_OSPEED_50MHZ: output max speed 50MHz
\param[in] pin: GPIO pin
one or more parameters can be selected which are shown as below:
\arg GPIO_PIN_x(x=0..15), GPIO_PIN_ALL
\param[out] none
\retval none
*/
void gpio_output_options_set(uint32_t gpio_periph, uint8_t otype, uint32_t speed, uint32_t pin)
{
uint16_t i;
uint32_t ospeed;
if(GPIO_OTYPE_OD == otype){
GPIO_OMODE(gpio_periph) |= (uint32_t)pin;
}else{
GPIO_OMODE(gpio_periph) &= (uint32_t)(~pin);
}
/* get the specified pin output speed bits value */
ospeed = GPIO_OSPD(gpio_periph);
for(i = 0U;i < 16U;i++){
if((1U << i) & pin){
/* clear the specified pin output speed bits */
ospeed &= ~GPIO_OSPEED_MASK(i);
/* set the specified pin output speed bits */
ospeed |= GPIO_OSPEED_SET(i,speed);
}
}
GPIO_OSPD(gpio_periph) = ospeed;
}
/*!
\brief set GPIO pin bit
\param[in] gpio_periph: GPIOx(x = A,B,C,F)
only one parameter can be selected which is shown as below:
\arg GPIOx(x = A,B,C,F)
\param[in] pin: GPIO pin
one or more parameters can be selected which are shown as below:
\arg GPIO_PIN_x(x=0..15), GPIO_PIN_ALL
\param[out] none
\retval none
*/
void gpio_bit_set(uint32_t gpio_periph, uint32_t pin)
{
GPIO_BOP(gpio_periph) = (uint32_t)pin;
}
/*!
\brief reset GPIO pin bit
\param[in] gpio_periph: GPIOx(x = A,B,C,F)
only one parameter can be selected which is shown as below:
\arg GPIOx(x = A,B,C,F)
\param[in] pin: GPIO pin
one or more parameters can be selected which are shown as below:
\arg GPIO_PIN_x(x=0..15), GPIO_PIN_ALL
\param[out] none
\retval none
*/
void gpio_bit_reset(uint32_t gpio_periph, uint32_t pin)
{
GPIO_BC(gpio_periph) = (uint32_t)pin;
}
/*!
\brief write data to the specified GPIO pin
\param[in] gpio_periph: GPIOx(x = A,B,C,F)
only one parameter can be selected which is shown as below:
\arg GPIOx(x = A,B,C,F)
\param[in] pin: GPIO pin
one or more parameters can be selected which are shown as below:
\arg GPIO_PIN_x(x=0..15), GPIO_PIN_ALL
\param[in] bit_value: SET or RESET
\arg RESET: clear the port pin
\arg SET: set the port pin
\param[out] none
\retval none
*/
void gpio_bit_write(uint32_t gpio_periph, uint32_t pin, bit_status bit_value)
{
if(RESET != bit_value){
GPIO_BOP(gpio_periph) = (uint32_t)pin;
}else{
GPIO_BC(gpio_periph) = (uint32_t)pin;
}
}
/*!
\brief write data to the specified GPIO port
\param[in] gpio_periph: GPIOx(x = A,B,C,F)
only one parameter can be selected which is shown as below:
\arg GPIOx(x = A,B,C,F)
\param[in] data: specify the value to be written to the port output control register
\param[out] none
\retval none
*/
void gpio_port_write(uint32_t gpio_periph, uint16_t data)
{
GPIO_OCTL(gpio_periph) = (uint32_t)data;
}
/*!
\brief get GPIO pin input status
\param[in] gpio_periph: GPIOx(x = A,B,C,F)
only one parameter can be selected which is shown as below:
\arg GPIOx(x = A,B,C,F)
\param[in] pin: GPIO pin
one or more parameters can be selected which are shown as below:
\arg GPIO_PIN_x(x=0..15), GPIO_PIN_ALL
\param[out] none
\retval SET or RESET
*/
FlagStatus gpio_input_bit_get(uint32_t gpio_periph, uint32_t pin)
{
if((uint32_t)RESET != (GPIO_ISTAT(gpio_periph)&(pin))){
return SET;
}else{
return RESET;
}
}
/*!
\brief get GPIO all pins input status
\param[in] gpio_periph: GPIOx(x = A,B,C,F)
only one parameter can be selected which is shown as below:
\arg GPIOx(x = A,B,C,F)
\param[out] none
\retval state of GPIO all pins
*/
uint16_t gpio_input_port_get(uint32_t gpio_periph)
{
return (uint16_t)GPIO_ISTAT(gpio_periph);
}
/*!
\brief get GPIO pin output status
\param[in] gpio_periph: GPIOx(x = A,B,C,F)
only one parameter can be selected which is shown as below:
\arg GPIOx(x = A,B,C,F)
\param[in] pin: GPIO pin
one or more parameters can be selected which are shown as below:
\arg GPIO_PIN_x(x=0..15), GPIO_PIN_ALL
\param[out] none
\retval SET or RESET
*/
FlagStatus gpio_output_bit_get(uint32_t gpio_periph, uint32_t pin)
{
if((uint32_t)RESET != (GPIO_OCTL(gpio_periph)&(pin))){
return SET;
}else{
return RESET;
}
}
/*!
\brief get GPIO all pins output status
\param[in] gpio_periph: GPIOx(x = A,B,C,F)
only one parameter can be selected which is shown as below:
\arg GPIOx(x = A,B,C,F)
\param[out] none
\retval state of GPIO all pins
*/
uint16_t gpio_output_port_get(uint32_t gpio_periph)
{
return (uint16_t)GPIO_OCTL(gpio_periph);
}
/*!
\brief set GPIO alternate function
\param[in] gpio_periph: GPIOx(x = A,B,C)
only one parameter can be selected which is shown as below:
\arg GPIOx(x = A,B,C)
\param[in] alt_func_num: GPIO pin af function, please refer to specific device datasheet
\arg GPIO_AF_0: TIMER13, TIMER14, TIMER16, SPI0, SPI1, I2S0, CK_OUT, USART0,
I2C0, I2C1, SWDIO, SWCLK
\arg GPIO_AF_1: USART0, USART1, TIMER2, TIMER14, I2C0, I2C1
\arg GPIO_AF_2: TIMER0, TIMER1, TIMER15, TIMER16, I2S0
\arg GPIO_AF_3: I2C0, TIMER14
\arg GPIO_AF_4(port A,B only): USART1, I2C0, I2C1, TIMER13
\arg GPIO_AF_5(port A,B only): TIMER15, TIMER16, I2S0
\arg GPIO_AF_6(port A,B only): SPI1
\arg GPIO_AF_7(port A,B only): CMP
\param[in] pin: GPIO pin
one or more parameters can be selected which are shown as below:
\arg GPIO_PIN_x(x=0..15), GPIO_PIN_ALL
\param[out] none
\retval none
*/
void gpio_af_set(uint32_t gpio_periph, uint32_t alt_func_num, uint32_t pin)
{
uint16_t i;
uint32_t afrl, afrh;
afrl = GPIO_AFSEL0(gpio_periph);
afrh = GPIO_AFSEL1(gpio_periph);
for(i = 0U;i < 8U;i++){
if((1U << i) & pin){
/* clear the specified pin alternate function bits */
afrl &= ~GPIO_AFR_MASK(i);
afrl |= GPIO_AFR_SET(i,alt_func_num);
}
}
for(i = 8U;i < 16U;i++){
if((1U << i) & pin){
/* clear the specified pin alternate function bits */
afrh &= ~GPIO_AFR_MASK(i - 8U);
afrh |= GPIO_AFR_SET(i - 8U,alt_func_num);
}
}
GPIO_AFSEL0(gpio_periph) = afrl;
GPIO_AFSEL1(gpio_periph) = afrh;
}
/*!
\brief lock GPIO pin bit
\param[in] gpio_periph: GPIOx(x = A,B)
only one parameter can be selected which is shown as below:
\arg GPIOx(x = A,B)
\param[in] pin: GPIO pin
one or more parameters can be selected which are shown as below:
\arg GPIO_PIN_x(x=0..15), GPIO_PIN_ALL
\param[out] none
\retval none
*/
void gpio_pin_lock(uint32_t gpio_periph, uint32_t pin)
{
uint32_t lock = 0x00010000U;
lock |= pin;
/* lock key writing sequence: write 1->write 0->write 1->read 0->read 1 */
GPIO_LOCK(gpio_periph) = (uint32_t)lock;
GPIO_LOCK(gpio_periph) = (uint32_t)pin;
GPIO_LOCK(gpio_periph) = (uint32_t)lock;
lock = GPIO_LOCK(gpio_periph);
lock = GPIO_LOCK(gpio_periph);
}
/*!
\brief toggle GPIO pin status
\param[in] gpio_periph: GPIOx(x = A,B,C,F)
only one parameter can be selected which is shown as below:
\arg GPIOx(x = A,B,C,F)
\param[in] pin: GPIO pin
one or more parameters can be selected which are shown as below:
\arg GPIO_PIN_x(x=0..15), GPIO_PIN_ALL
\param[out] none
\retval none
*/
void gpio_bit_toggle(uint32_t gpio_periph, uint32_t pin)
{
GPIO_TG(gpio_periph) = (uint32_t)pin;
}
/*!
\brief toggle GPIO port status
\param[in] gpio_periph: GPIOx(x = A,B,C,F)
only one parameter can be selected which is shown as below:
\arg GPIOx(x = A,B,C,F)
\param[out] none
\retval none
*/
void gpio_port_toggle(uint32_t gpio_periph)
{
GPIO_TG(gpio_periph) = 0x0000FFFFU;
}

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/*!
\file gd32e23x_i2c.c
\brief I2C driver
\version 2024-02-22, V2.1.0, firmware for GD32E23x
*/
/*
Copyright (c) 2024, GigaDevice Semiconductor Inc.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.
*/
#include "gd32e23x_i2c.h"
/* I2C register bit mask */
#define I2CCLK_MAX ((uint32_t)0x0000007FU) /*!< i2cclk maximum value */
#define I2CCLK_MIN ((uint32_t)0x00000002U) /*!< i2cclk minimum value */
#define I2C_FLAG_MASK ((uint32_t)0x0000FFFFU) /*!< i2c flag mask */
#define I2C_ADDRESS_MASK ((uint32_t)0x000003FFU) /*!< i2c address mask */
#define I2C_ADDRESS2_MASK ((uint32_t)0x000000FEU) /*!< the second i2c address mask */
/* I2C register bit offset */
#define STAT1_PECV_OFFSET ((uint32_t)0x00000008U) /* bit offset of PECV in I2C_STAT1 */
/*!
\brief reset I2C
\param[in] i2c_periph: I2Cx(x=0,1)
\param[out] none
\retval none
*/
void i2c_deinit(uint32_t i2c_periph)
{
switch(i2c_periph) {
case I2C0:
/* reset I2C0 */
rcu_periph_reset_enable(RCU_I2C0RST);
rcu_periph_reset_disable(RCU_I2C0RST);
break;
case I2C1:
/* reset I2C1 */
rcu_periph_reset_enable(RCU_I2C1RST);
rcu_periph_reset_disable(RCU_I2C1RST);
break;
default:
break;
}
}
/*!
\brief configure I2C clock
\param[in] i2c_periph: I2Cx(x=0,1)
\param[in] clkspeed: I2C clock speed, supports standard mode (up to 100 kHz), fast mode (up to 400 kHz)
and fast mode plus (up to 1MHz)
\param[in] dutycyc: duty cycle in fast mode or fast mode plus
only one parameter can be selected which is shown as below:
\arg I2C_DTCY_2: T_low/T_high = 2 in fast mode or fast mode plus
\arg I2C_DTCY_16_9: T_low/T_high = 16/9 in fast mode or fast mode plus
\param[out] none
\retval none
*/
void i2c_clock_config(uint32_t i2c_periph, uint32_t clkspeed, uint32_t dutycyc)
{
uint32_t pclk1, clkc, freq, risetime;
uint32_t temp;
pclk1 = rcu_clock_freq_get(CK_APB1);
/* I2C peripheral clock frequency */
freq = (uint32_t)(pclk1 / 1000000U);
if(freq >= I2CCLK_MAX) {
freq = I2CCLK_MAX;
}
temp = I2C_CTL1(i2c_periph);
temp &= ~I2C_CTL1_I2CCLK;
temp |= freq;
I2C_CTL1(i2c_periph) = temp;
if(100000U >= clkspeed) {
/* the maximum SCL rise time is 1000ns in standard mode */
risetime = (uint32_t)((pclk1 / 1000000U) + 1U);
if(risetime >= I2CCLK_MAX) {
I2C_RT(i2c_periph) = I2CCLK_MAX;
} else if(risetime <= I2CCLK_MIN) {
I2C_RT(i2c_periph) = I2CCLK_MIN;
} else {
I2C_RT(i2c_periph) = risetime;
}
clkc = (uint32_t)(pclk1 / (clkspeed * 2U));
if(clkc < 0x04U) {
/* the CLKC in standard mode minmum value is 4 */
clkc = 0x04U;
}
I2C_CKCFG(i2c_periph) |= (I2C_CKCFG_CLKC & clkc);
} else if(400000U >= clkspeed) {
/* the maximum SCL rise time is 300ns in fast mode */
I2C_RT(i2c_periph) = (uint32_t)(((freq * (uint32_t)300U) / (uint32_t)1000U) + (uint32_t)1U);
if(I2C_DTCY_2 == dutycyc) {
/* I2C duty cycle is 2 */
clkc = (uint32_t)(pclk1 / (clkspeed * 3U));
I2C_CKCFG(i2c_periph) &= ~I2C_CKCFG_DTCY;
} else {
/* I2C duty cycle is 16/9 */
clkc = (uint32_t)(pclk1 / (clkspeed * 25U));
I2C_CKCFG(i2c_periph) |= I2C_CKCFG_DTCY;
}
if(0U == (clkc & I2C_CKCFG_CLKC)) {
/* the CLKC in fast mode minmum value is 1 */
clkc |= 0x0001U;
}
I2C_CKCFG(i2c_periph) |= I2C_CKCFG_FAST;
I2C_CKCFG(i2c_periph) |= clkc;
} else {
/* fast mode plus, the maximum SCL rise time is 120ns */
I2C_RT(i2c_periph) = (uint32_t)(((freq * (uint32_t)120U) / (uint32_t)1000U) + (uint32_t)1U);
if(I2C_DTCY_2 == dutycyc) {
/* I2C duty cycle is 2 */
clkc = (uint32_t)(pclk1 / (clkspeed * 3U));
I2C_CKCFG(i2c_periph) &= ~I2C_CKCFG_DTCY;
} else {
/* I2C duty cycle is 16/9 */
clkc = (uint32_t)(pclk1 / (clkspeed * 25U));
I2C_CKCFG(i2c_periph) |= I2C_CKCFG_DTCY;
}
/* enable fast mode */
I2C_CKCFG(i2c_periph) |= I2C_CKCFG_FAST;
I2C_CKCFG(i2c_periph) |= clkc;
/* enable I2C fast mode plus */
I2C_FMPCFG(i2c_periph) = I2C_FMPCFG_FMPEN;
}
}
/*!
\brief configure I2C address
\param[in] i2c_periph: I2Cx(x=0,1)
\param[in] mode:
only one parameter can be selected which is shown as below:
\arg I2C_I2CMODE_ENABLE: I2C mode
\arg I2C_SMBUSMODE_ENABLE: SMBus mode
\param[in] addformat: 7bits or 10bits
only one parameter can be selected which is shown as below:
\arg I2C_ADDFORMAT_7BITS: address format is 7 bits
\arg I2C_ADDFORMAT_10BITS: address format is 10 bits
\param[in] addr: I2C address
\param[out] none
\retval none
*/
void i2c_mode_addr_config(uint32_t i2c_periph, uint32_t mode, uint32_t addformat, uint32_t addr)
{
/* SMBus/I2C mode selected */
uint32_t ctl = 0U;
ctl = I2C_CTL0(i2c_periph);
ctl &= ~(I2C_CTL0_SMBEN);
ctl |= mode;
I2C_CTL0(i2c_periph) = ctl;
/* configure address */
addr = addr & I2C_ADDRESS_MASK;
I2C_SADDR0(i2c_periph) = (addformat | addr);
}
/*!
\brief select SMBus type
\param[in] i2c_periph: I2Cx(x=0,1)
\param[in] type:
only one parameter can be selected which is shown as below:
\arg I2C_SMBUS_DEVICE: SMBus mode device type
\arg I2C_SMBUS_HOST: SMBus mode host type
\param[out] none
\retval none
*/
void i2c_smbus_type_config(uint32_t i2c_periph, uint32_t type)
{
if(I2C_SMBUS_HOST == type) {
I2C_CTL0(i2c_periph) |= I2C_CTL0_SMBSEL;
} else {
I2C_CTL0(i2c_periph) &= ~(I2C_CTL0_SMBSEL);
}
}
/*!
\brief whether or not to send an ACK
\param[in] i2c_periph: I2Cx(x=0,1)
\param[in] ack:
only one parameter can be selected which is shown as below:
\arg I2C_ACK_ENABLE: ACK will be sent
\arg I2C_ACK_DISABLE: ACK will not be sent
\param[out] none
\retval none
*/
void i2c_ack_config(uint32_t i2c_periph, uint32_t ack)
{
uint32_t ctl = 0U;
ctl = I2C_CTL0(i2c_periph);
ctl &= ~(I2C_CTL0_ACKEN);
ctl |= ack;
I2C_CTL0(i2c_periph) = ctl;
}
/*!
\brief configure I2C POAP position
\param[in] i2c_periph: I2Cx(x=0,1)
\param[in] pos:
only one parameter can be selected which is shown as below:
\arg I2C_ACKPOS_CURRENT: ACKEN bit decides whether or not to send ACK or not for the current byte
\arg I2C_ACKPOS_NEXT: ACKEN bit decides whether or not to send ACK for the next byte
\param[out] none
\retval none
*/
void i2c_ackpos_config(uint32_t i2c_periph, uint32_t pos)
{
uint32_t ctl = 0U;
/* configure I2C POAP position */
ctl = I2C_CTL0(i2c_periph);
ctl &= ~(I2C_CTL0_POAP);
ctl |= pos;
I2C_CTL0(i2c_periph) = ctl;
}
/*!
\brief master sends slave address
\param[in] i2c_periph: I2Cx(x=0,1)
\param[in] addr: slave address
\param[in] trandirection: transmitter or receiver
only one parameter can be selected which is shown as below:
\arg I2C_TRANSMITTER: transmitter
\arg I2C_RECEIVER: receiver
\param[out] none
\retval none
*/
void i2c_master_addressing(uint32_t i2c_periph, uint32_t addr, uint32_t trandirection)
{
/* master is a transmitter or a receiver */
if(I2C_TRANSMITTER == trandirection) {
addr = addr & I2C_TRANSMITTER;
} else {
addr = addr | I2C_RECEIVER;
}
/* send slave address */
I2C_DATA(i2c_periph) = addr;
}
/*!
\brief enable dual-address mode
\param[in] i2c_periph: I2Cx(x=0,1)
\param[in] addr: the second address in dual-address mode
\param[out] none
\retval none
*/
void i2c_dualaddr_enable(uint32_t i2c_periph, uint32_t addr)
{
/* configure address */
addr = addr & I2C_ADDRESS2_MASK;
I2C_SADDR1(i2c_periph) = (I2C_SADDR1_DUADEN | addr);
}
/*!
\brief disable dual-address mode
\param[in] i2c_periph: I2Cx(x=0,1)
\param[out] none
\retval none
*/
void i2c_dualaddr_disable(uint32_t i2c_periph)
{
I2C_SADDR1(i2c_periph) &= ~(I2C_SADDR1_DUADEN);
}
/*!
\brief enable I2C
\param[in] i2c_periph: I2Cx(x=0,1)
\param[out] none
\retval none
*/
void i2c_enable(uint32_t i2c_periph)
{
I2C_CTL0(i2c_periph) |= I2C_CTL0_I2CEN;
}
/*!
\brief disable I2C
\param[in] i2c_periph: I2Cx(x=0,1)
\param[out] none
\retval none
*/
void i2c_disable(uint32_t i2c_periph)
{
I2C_CTL0(i2c_periph) &= ~(I2C_CTL0_I2CEN);
}
/*!
\brief generate a START condition on I2C bus
\param[in] i2c_periph: I2Cx(x=0,1)
\param[out] none
\retval none
*/
void i2c_start_on_bus(uint32_t i2c_periph)
{
I2C_CTL0(i2c_periph) |= I2C_CTL0_START;
}
/*!
\brief generate a STOP condition on I2C bus
\param[in] i2c_periph: I2Cx(x=0,1)
\param[out] none
\retval none
*/
void i2c_stop_on_bus(uint32_t i2c_periph)
{
I2C_CTL0(i2c_periph) |= I2C_CTL0_STOP;
}
/*!
\brief I2C transmit data function
\param[in] i2c_periph: I2Cx(x=0,1)
\param[in] data: data of transmission
\param[out] none
\retval none
*/
void i2c_data_transmit(uint32_t i2c_periph, uint8_t data)
{
I2C_DATA(i2c_periph) = DATA_TRANS(data);
}
/*!
\brief I2C receive data function
\param[in] i2c_periph: I2Cx(x=0,1)
\param[out] none
\retval data of received
*/
uint8_t i2c_data_receive(uint32_t i2c_periph)
{
return (uint8_t)DATA_RECV(I2C_DATA(i2c_periph));
}
/*!
\brief configure I2C DMA mode
\param[in] i2c_periph: I2Cx(x=0,1)
\param[in] dmastate:
only one parameter can be selected which is shown as below:
\arg I2C_DMA_ON: enable DMA mode
\arg I2C_DMA_OFF: disable DMA mode
\param[out] none
\retval none
*/
void i2c_dma_config(uint32_t i2c_periph, uint32_t dmastate)
{
/* configure I2C DMA function */
uint32_t ctl = 0U;
ctl = I2C_CTL1(i2c_periph);
ctl &= ~(I2C_CTL1_DMAON);
ctl |= dmastate;
I2C_CTL1(i2c_periph) = ctl;
}
/*!
\brief configure whether next DMA EOT is DMA last transfer or not
\param[in] i2c_periph: I2Cx(x=0,1)
\param[in] dmalast:
only one parameter can be selected which is shown as below:
\arg I2C_DMALST_ON: next DMA EOT is the last transfer
\arg I2C_DMALST_OFF: next DMA EOT is not the last transfer
\param[out] none
\retval none
*/
void i2c_dma_last_transfer_config(uint32_t i2c_periph, uint32_t dmalast)
{
/* configure DMA last transfer */
uint32_t ctl = 0U;
ctl = I2C_CTL1(i2c_periph);
ctl &= ~(I2C_CTL1_DMALST);
ctl |= dmalast;
I2C_CTL1(i2c_periph) = ctl;
}
/*!
\brief whether to stretch SCL low when data is not ready in slave mode
\param[in] i2c_periph: I2Cx(x=0,1)
\param[in] stretchpara:
only one parameter can be selected which is shown as below:
\arg I2C_SCLSTRETCH_ENABLE: enable SCL stretching
\arg I2C_SCLSTRETCH_DISABLE: disable SCL stretching
\param[out] none
\retval none
*/
void i2c_stretch_scl_low_config(uint32_t i2c_periph, uint32_t stretchpara)
{
/* configure I2C SCL strerching */
uint32_t ctl = 0U;
ctl = I2C_CTL0(i2c_periph);
ctl &= ~(I2C_CTL0_SS);
ctl |= stretchpara;
I2C_CTL0(i2c_periph) = ctl;
}
/*!
\brief whether or not to response to a general call
\param[in] i2c_periph: I2Cx(x=0,1)
\param[in] gcallpara:
only one parameter can be selected which is shown as below:
\arg I2C_GCEN_ENABLE: slave will response to a general call
\arg I2C_GCEN_DISABLE: slave will not response to a general call
\param[out] none
\retval none
*/
void i2c_slave_response_to_gcall_config(uint32_t i2c_periph, uint32_t gcallpara)
{
/* configure slave response to a general call enable or disable */
uint32_t ctl = 0U;
ctl = I2C_CTL0(i2c_periph);
ctl &= ~(I2C_CTL0_GCEN);
ctl |= gcallpara;
I2C_CTL0(i2c_periph) = ctl;
}
/*!
\brief configure software reset of I2C
\param[in] i2c_periph: I2Cx(x=0,1)
\param[in] sreset:
only one parameter can be selected which is shown as below:
\arg I2C_SRESET_SET: I2C is under reset
\arg I2C_SRESET_RESET: I2C is not under reset
\param[out] none
\retval none
*/
void i2c_software_reset_config(uint32_t i2c_periph, uint32_t sreset)
{
/* modify CTL0 and configure software reset I2C state */
uint32_t ctl = 0U;
ctl = I2C_CTL0(i2c_periph);
ctl &= ~(I2C_CTL0_SRESET);
ctl |= sreset;
I2C_CTL0(i2c_periph) = ctl;
}
/*!
\brief configure I2C PEC calculation
\param[in] i2c_periph: I2Cx(x=0,1)
\param[in] pecstate:
only one parameter can be selected which is shown as below:
\arg I2C_PEC_ENABLE: PEC calculation on
\arg I2C_PEC_DISABLE: PEC calculation off
\param[out] none
\retval none
*/
void i2c_pec_config(uint32_t i2c_periph, uint32_t pecstate)
{
/* on/off PEC calculation */
uint32_t ctl = 0U;
ctl = I2C_CTL0(i2c_periph);
ctl &= ~(I2C_CTL0_PECEN);
ctl |= pecstate;
I2C_CTL0(i2c_periph) = ctl;
}
/*!
\brief configure whether to transfer PEC value
\param[in] i2c_periph: I2Cx(x=0,1)
\param[in] pecpara:
only one parameter can be selected which is shown as below:
\arg I2C_PECTRANS_ENABLE: transfer PEC value
\arg I2C_PECTRANS_DISABLE: not transfer PEC value
\param[out] none
\retval none
*/
void i2c_pec_transfer_config(uint32_t i2c_periph, uint32_t pecpara)
{
/* whether to transfer PEC */
uint32_t ctl = 0U;
ctl = I2C_CTL0(i2c_periph);
ctl &= ~(I2C_CTL0_PECTRANS);
ctl |= pecpara;
I2C_CTL0(i2c_periph) = ctl;
}
/*!
\brief get packet error checking value
\param[in] i2c_periph: I2Cx(x=0,1)
\param[out] none
\retval PEC value
*/
uint8_t i2c_pec_value_get(uint32_t i2c_periph)
{
return (uint8_t)((I2C_STAT1(i2c_periph) & I2C_STAT1_PECV) >> STAT1_PECV_OFFSET);
}
/*!
\brief configure I2C alert through SMBA pin
\param[in] i2c_periph: I2Cx(x=0,1)
\param[in] smbuspara:
only one parameter can be selected which is shown as below:
\arg I2C_SALTSEND_ENABLE: issue alert through SMBA pin
\arg I2C_SALTSEND_DISABLE: not issue alert through SMBA pin
\param[out] none
\retval none
*/
void i2c_smbus_alert_config(uint32_t i2c_periph, uint32_t smbuspara)
{
/* configure smubus alert through SMBA pin */
uint32_t ctl = 0U;
ctl = I2C_CTL0(i2c_periph);
ctl &= ~(I2C_CTL0_SALT);
ctl |= smbuspara;
I2C_CTL0(i2c_periph) = ctl;
}
/*!
\brief configure I2C ARP protocol in SMBus
\param[in] i2c_periph: I2Cx(x=0,1)
\param[in] arpstate:
only one parameter can be selected which is shown as below:
\arg I2C_ARP_ENABLE: enable ARP
\arg I2C_ARP_DISABLE: disable ARP
\param[out] none
\retval none
*/
void i2c_smbus_arp_config(uint32_t i2c_periph, uint32_t arpstate)
{
/* enable or disable I2C ARP protocol*/
uint32_t ctl = 0U;
ctl = I2C_CTL0(i2c_periph);
ctl &= ~(I2C_CTL0_ARPEN);
ctl |= arpstate;
I2C_CTL0(i2c_periph) = ctl;
}
/*!
\brief enable SAM_V interface
\param[in] i2c_periph: I2Cx(x=0,1)
\param[out] none
\retval none
*/
void i2c_sam_enable(uint32_t i2c_periph)
{
I2C_SAMCS(i2c_periph) |= I2C_SAMCS_SAMEN;
}
/*!
\brief disable SAM_V interface
\param[in] i2c_periph: I2Cx(x=0,1)
\param[out] none
\retval none
*/
void i2c_sam_disable(uint32_t i2c_periph)
{
I2C_SAMCS(i2c_periph) &= ~(I2C_SAMCS_SAMEN);
}
/*!
\brief enable SAM_V interface timeout detect
\param[in] i2c_periph: I2Cx(x=0,1)
\param[out] none
\retval none
*/
void i2c_sam_timeout_enable(uint32_t i2c_periph)
{
I2C_SAMCS(i2c_periph) |= I2C_SAMCS_STOEN;
}
/*!
\brief disable SAM_V interface timeout detect
\param[in] i2c_periph: I2Cx(x=0,1)
\param[out] none
\retval none
*/
void i2c_sam_timeout_disable(uint32_t i2c_periph)
{
I2C_SAMCS(i2c_periph) &= ~(I2C_SAMCS_STOEN);
}
/*!
\brief get I2C flag status
\param[in] i2c_periph: I2Cx(x=0,1)
\param[in] flag: I2C flags, refer to i2c_flag_enum
only one parameter can be selected which is shown as below:
\arg I2C_FLAG_SBSEND: start condition sent out in master mode
\arg I2C_FLAG_ADDSEND: address is sent in master mode or received and matches in slave mode
\arg I2C_FLAG_BTC: byte transmission finishes
\arg I2C_FLAG_ADD10SEND: header of 10-bit address is sent in master mode
\arg I2C_FLAG_STPDET: stop condition detected in slave mode
\arg I2C_FLAG_RBNE: I2C_DATA is not empty during receiving
\arg I2C_FLAG_TBE: I2C_DATA is empty during transmitting
\arg I2C_FLAG_BERR: a bus error occurs indication a unexpected start or stop condition on I2C bus
\arg I2C_FLAG_LOSTARB: arbitration lost in master mode
\arg I2C_FLAG_AERR: acknowledge error
\arg I2C_FLAG_OUERR: over-run or under-run situation occurs in slave mode
\arg I2C_FLAG_PECERR: PEC error when receiving data
\arg I2C_FLAG_SMBTO: timeout signal in SMBus mode
\arg I2C_FLAG_SMBALT: SMBus alert status
\arg I2C_FLAG_MASTER: a flag indicating whether I2C block is in master or slave mode
\arg I2C_FLAG_I2CBSY: busy flag
\arg I2C_FLAG_TR: whether the I2C is a transmitter or a receiver
\arg I2C_FLAG_RXGC: general call address (00h) received
\arg I2C_FLAG_DEFSMB: default address of SMBus device
\arg I2C_FLAG_HSTSMB: SMBus host header detected in slave mode
\arg I2C_FLAG_DUMOD: dual flag in slave mode indicating which address is matched in dual-address mode
\arg I2C_FLAG_TFF: txframe fall flag
\arg I2C_FLAG_TFR: txframe rise flag
\arg I2C_FLAG_RFF: rxframe fall flag
\arg I2C_FLAG_RFR: rxframe rise flag
\param[out] none
\retval FlagStatus: SET or RESET
*/
FlagStatus i2c_flag_get(uint32_t i2c_periph, i2c_flag_enum flag)
{
if(RESET != (I2C_REG_VAL(i2c_periph, flag) & BIT(I2C_BIT_POS(flag)))) {
return SET;
} else {
return RESET;
}
}
/*!
\brief clear I2C flag status
\param[in] i2c_periph: I2Cx(x=0,1)
\param[in] flag: I2C flags, refer to i2c_flag_enum
only one parameter can be selected which is shown as below:
\arg I2C_FLAG_SMBALT: SMBus alert status
\arg I2C_FLAG_SMBTO: timeout signal in SMBus mode
\arg I2C_FLAG_PECERR: PEC error when receiving data
\arg I2C_FLAG_OUERR: over-run or under-run situation occurs in slave mode
\arg I2C_FLAG_AERR: acknowledge error
\arg I2C_FLAG_LOSTARB: arbitration lost in master mode
\arg I2C_FLAG_BERR: a bus error occurs indication a unexpected start or stop condition on I2C bus
\arg I2C_FLAG_ADDSEND: address is sent in master mode or received and matches in slave mode
\arg I2C_FLAG_TFF: txframe fall flag
\arg I2C_FLAG_TFR: txframe rise flag
\arg I2C_FLAG_RFF: rxframe fall flag
\arg I2C_FLAG_RFR: rxframe rise flag
\param[out] none
\retval none
*/
void i2c_flag_clear(uint32_t i2c_periph, i2c_flag_enum flag)
{
if(I2C_FLAG_ADDSEND == flag) {
/* read I2C_STAT0 and then read I2C_STAT1 to clear ADDSEND */
I2C_STAT0(i2c_periph);
I2C_STAT1(i2c_periph);
} else {
I2C_REG_VAL(i2c_periph, flag) &= ~BIT(I2C_BIT_POS(flag));
}
}
/*!
\brief enable I2C interrupt
\param[in] i2c_periph: I2Cx(x=0,1)
\param[in] interrupt: I2C interrupts, refer to i2c_interrupt_enum
only one parameter can be selected which is shown as below:
\arg I2C_INT_ERR: error interrupt
\arg I2C_INT_EV: event interrupt
\arg I2C_INT_BUF: buffer interrupt
\arg I2C_INT_TFF: txframe fall interrupt
\arg I2C_INT_TFR: txframe rise interrupt
\arg I2C_INT_RFF: rxframe fall interrupt
\arg I2C_INT_RFR: rxframe rise interrupt
\param[out] none
\retval none
*/
void i2c_interrupt_enable(uint32_t i2c_periph, i2c_interrupt_enum interrupt)
{
I2C_REG_VAL(i2c_periph, interrupt) |= BIT(I2C_BIT_POS(interrupt));
}
/*!
\brief disable I2C interrupt
\param[in] i2c_periph: I2Cx(x=0,1)
\param[in] interrupt: I2C interrupts, refer to i2c_interrupt_enum
only one parameter can be selected which is shown as below:
\arg I2C_INT_ERR: error interrupt
\arg I2C_INT_EV: event interrupt
\arg I2C_INT_BUF: buffer interrupt
\arg I2C_INT_TFF: txframe fall interrupt
\arg I2C_INT_TFR: txframe rise interrupt
\arg I2C_INT_RFF: rxframe fall interrupt
\arg I2C_INT_RFR: rxframe rise interrupt
\param[out] none
\retval none
*/
void i2c_interrupt_disable(uint32_t i2c_periph, i2c_interrupt_enum interrupt)
{
I2C_REG_VAL(i2c_periph, interrupt) &= ~BIT(I2C_BIT_POS(interrupt));
}
/*!
\brief get I2C interrupt flag status
\param[in] i2c_periph: I2Cx(x=0,1)
\param[in] int_flag: I2C interrupt flags, refer to i2c_interrupt_flag_enum
only one parameter can be selected which is shown as below:
\arg I2C_INT_FLAG_SBSEND: start condition sent out in master mode interrupt flag
\arg I2C_INT_FLAG_ADDSEND: address is sent in master mode or received and matches in slave mode interrupt flag
\arg I2C_INT_FLAG_BTC: byte transmission finishes interrupt flag
\arg I2C_INT_FLAG_ADD10SEND: header of 10-bit address is sent in master mode interrupt flag
\arg I2C_INT_FLAG_STPDET: stop condition detected in slave mode interrupt flag
\arg I2C_INT_FLAG_RBNE: I2C_DATA is not Empty during receiving interrupt flag
\arg I2C_INT_FLAG_TBE: I2C_DATA is empty during transmitting interrupt flag
\arg I2C_INT_FLAG_BERR: a bus error occurs indication a unexpected start or stop condition on I2C bus interrupt flag
\arg I2C_INT_FLAG_LOSTARB: arbitration lost in master mode interrupt flag
\arg I2C_INT_FLAG_AERR: acknowledge error interrupt flag
\arg I2C_INT_FLAG_OUERR: over-run or under-run situation occurs in slave mode interrupt flag
\arg I2C_INT_FLAG_PECERR: PEC error when receiving data interrupt flag
\arg I2C_INT_FLAG_SMBTO: timeout signal in SMBus mode interrupt flag
\arg I2C_INT_FLAG_SMBALT: SMBus alert status interrupt flag
\arg I2C_INT_FLAG_TFF: txframe fall interrupt flag
\arg I2C_INT_FLAG_TFR: txframe rise interrupt flag
\arg I2C_INT_FLAG_RFF: rxframe fall interrupt flag
\arg I2C_INT_FLAG_RFR: rxframe rise interrupt flag
\param[out] none
\retval FlagStatus: SET or RESET
*/
FlagStatus i2c_interrupt_flag_get(uint32_t i2c_periph, i2c_interrupt_flag_enum int_flag)
{
uint32_t intenable = 0U, flagstatus = 0U, bufie;
/* check BUFIE */
bufie = I2C_CTL1(i2c_periph)&I2C_CTL1_BUFIE;
/* get the interrupt enable bit status */
intenable = (I2C_REG_VAL(i2c_periph, int_flag) & BIT(I2C_BIT_POS(int_flag)));
/* get the corresponding flag bit status */
flagstatus = (I2C_REG_VAL2(i2c_periph, int_flag) & BIT(I2C_BIT_POS2(int_flag)));
if((I2C_INT_FLAG_RBNE == int_flag) || (I2C_INT_FLAG_TBE == int_flag)) {
if(intenable && bufie) {
intenable = 1U;
} else {
intenable = 0U;
}
}
if((0U != flagstatus) && (0U != intenable)) {
return SET;
} else {
return RESET;
}
}
/*!
\brief clear I2C interrupt flag status
\param[in] i2c_periph: I2Cx(x=0,1)
\param[in] int_flag: I2C interrupt flags, refer to i2c_interrupt_flag_enum
only one parameter can be selected which is shown as below:
\arg I2C_INT_FLAG_ADDSEND: address is sent in master mode or received and matches in slave mode interrupt flag
\arg I2C_INT_FLAG_BERR: a bus error occurs indication a unexpected start or stop condition on I2C bus interrupt flag
\arg I2C_INT_FLAG_LOSTARB: arbitration lost in master mode interrupt flag
\arg I2C_INT_FLAG_AERR: acknowledge error interrupt flag
\arg I2C_INT_FLAG_OUERR: over-run or under-run situation occurs in slave mode interrupt flag
\arg I2C_INT_FLAG_PECERR: PEC error when receiving data interrupt flag
\arg I2C_INT_FLAG_SMBTO: timeout signal in SMBus mode interrupt flag
\arg I2C_INT_FLAG_SMBALT: SMBus alert status interrupt flag
\arg I2C_INT_FLAG_TFF: txframe fall interrupt flag
\arg I2C_INT_FLAG_TFR: txframe rise interrupt flag
\arg I2C_INT_FLAG_RFF: rxframe fall interrupt flag
\arg I2C_INT_FLAG_RFR: rxframe rise interrupt flag
\param[out] none
\retval none
*/
void i2c_interrupt_flag_clear(uint32_t i2c_periph, i2c_interrupt_flag_enum int_flag)
{
if(I2C_INT_FLAG_ADDSEND == int_flag) {
/* read I2C_STAT0 and then read I2C_STAT1 to clear ADDSEND */
I2C_STAT0(i2c_periph);
I2C_STAT1(i2c_periph);
} else {
I2C_REG_VAL2(i2c_periph, int_flag) &= ~BIT(I2C_BIT_POS2(int_flag));
}
}

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/*!
\file gd32e23x_misc.c
\brief MISC driver
\version 2024-02-22, V2.1.0, firmware for GD32E23x
*/
/*
Copyright (c) 2024, GigaDevice Semiconductor Inc.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.
*/
#include "gd32e23x_misc.h"
/*!
\brief enable NVIC request
\param[in] nvic_irq: the NVIC interrupt request, detailed in IRQn_Type
\param[in] nvic_irq_priority: the priority needed to set (0-3)
\param[out] none
\retval none
*/
void nvic_irq_enable(uint8_t nvic_irq,
uint8_t nvic_irq_priority)
{
/* set the priority and enable the selected IRQ */
NVIC_SetPriority((IRQn_Type)nvic_irq, (uint32_t)nvic_irq_priority);
NVIC_EnableIRQ((IRQn_Type)nvic_irq);
}
/*!
\brief disable NVIC request
\param[in] nvic_irq: the NVIC interrupt request, detailed in IRQn_Type
\param[out] none
\retval none
*/
void nvic_irq_disable(uint8_t nvic_irq)
{
/* disable the selected IRQ.*/
NVIC_DisableIRQ((IRQn_Type)nvic_irq);
}
/* */
/*!
\brief initiates a system reset request to reset the MCU
\param[in] none
\param[out] none
\retval none
*/
void nvic_system_reset(void)
{
NVIC_SystemReset();
}
/*!
\brief set the NVIC vector table base address
\param[in] nvic_vict_tab: the RAM or FLASH base address
\arg NVIC_VECTTAB_RAM: RAM base address
\arg NVIC_VECTTAB_FLASH: Flash base address
\param[in] offset: Vector Table offset
\param[out] none
\retval none
*/
void nvic_vector_table_set(uint32_t nvic_vict_tab, uint32_t offset)
{
SCB->VTOR = nvic_vict_tab | (offset & NVIC_VECTTAB_OFFSET_MASK);
__DSB();
}
/*!
\brief set the state of the low power mode
\param[in] lowpower_mode: the low power mode state
\arg SCB_LPM_SLEEP_EXIT_ISR: if chose this para, the system always enter low power
mode by exiting from ISR
\arg SCB_LPM_DEEPSLEEP: if chose this para, the system will enter the DEEPSLEEP mode
\arg SCB_LPM_WAKE_BY_ALL_INT: if chose this para, the lowpower mode can be woke up
by all the enable and disable interrupts
\param[out] none
\retval none
*/
void system_lowpower_set(uint8_t lowpower_mode)
{
SCB->SCR |= (uint32_t)lowpower_mode;
}
/*!
\brief reset the state of the low power mode
\param[in] lowpower_mode: the low power mode state
\arg SCB_LPM_SLEEP_EXIT_ISR: if chose this para, the system will exit low power
mode by exiting from ISR
\arg SCB_LPM_DEEPSLEEP: if chose this para, the system will enter the SLEEP mode
\arg SCB_LPM_WAKE_BY_ALL_INT: if chose this para, the lowpower mode only can be
woke up by the enable interrupts
\param[out] none
\retval none
*/
void system_lowpower_reset(uint8_t lowpower_mode)
{
SCB->SCR &= (~(uint32_t)lowpower_mode);
}
/*!
\brief set the systick clock source
\param[in] systick_clksource: the systick clock source needed to choose
\arg SYSTICK_CLKSOURCE_HCLK: systick clock source is from HCLK
\arg SYSTICK_CLKSOURCE_HCLK_DIV8: systick clock source is from HCLK/8
\param[out] none
\retval none
*/
void systick_clksource_set(uint32_t systick_clksource)
{
if(SYSTICK_CLKSOURCE_HCLK == systick_clksource ){
/* set the systick clock source from HCLK */
SysTick->CTRL |= SYSTICK_CLKSOURCE_HCLK;
}else{
/* set the systick clock source from HCLK/8 */
SysTick->CTRL &= SYSTICK_CLKSOURCE_HCLK_DIV8;
}
}

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/*!
\file gd32e23x_pmu.c
\brief PMU driver
\version 2023-09-04, V2.0.1, firmware for GD32E23x
*/
/*
Copyright (c) 2024, GigaDevice Semiconductor Inc.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.
*/
#include "gd32e23x_pmu.h"
/*!
\brief reset PMU register
\param[in] none
\param[out] none
\retval none
*/
void pmu_deinit(void)
{
/* reset PMU */
rcu_periph_reset_enable(RCU_PMURST);
rcu_periph_reset_disable(RCU_PMURST);
}
/*!
\brief select low voltage detector threshold
\param[in] lvdt_n:
only one parameter can be selected which is shown as below:
\arg PMU_LVDT_0: voltage threshold is 2.1V
\arg PMU_LVDT_1: voltage threshold is 2.3V
\arg PMU_LVDT_2: voltage threshold is 2.4V
\arg PMU_LVDT_3: voltage threshold is 2.6V
\arg PMU_LVDT_4: voltage threshold is 2.7V
\arg PMU_LVDT_5: voltage threshold is 2.9V
\arg PMU_LVDT_6: voltage threshold is 3.0V
\arg PMU_LVDT_7: voltage threshold is 3.1V
\param[out] none
\retval none
*/
void pmu_lvd_select(uint32_t lvdt_n)
{
/* disable LVD */
PMU_CTL &= ~PMU_CTL_LVDEN;
/* clear LVDT bits */
PMU_CTL &= ~PMU_CTL_LVDT;
/* set LVDT bits according to lvdt_n */
PMU_CTL |= lvdt_n;
/* enable LVD */
PMU_CTL |= PMU_CTL_LVDEN;
}
/*!
\brief select LDO output voltage
these bits set by software when the main PLL closed
\param[in] ldo_output:
only one parameter can be selected which is shown as below:
\arg PMU_LDOVS_LOW: LDO output voltage low mode
\arg PMU_LDOVS_HIGH: LDO output voltage high mode
\param[out] none
\retval none
*/
void pmu_ldo_output_select(uint32_t ldo_output)
{
PMU_CTL &= ~PMU_CTL_LDOVS;
PMU_CTL |= ldo_output;
}
/*!
\brief disable PMU lvd
\param[in] none
\param[out] none
\retval none
*/
void pmu_lvd_disable(void)
{
/* disable LVD */
PMU_CTL &= ~PMU_CTL_LVDEN;
}
/*!
\brief PMU work at sleep mode
\param[in] sleepmodecmd:
only one parameter can be selected which is shown as below:
\arg WFI_CMD: use WFI command
\arg WFE_CMD: use WFE command
\param[out] none
\retval none
*/
void pmu_to_sleepmode(uint8_t sleepmodecmd)
{
/* clear sleepdeep bit of Cortex-M23 system control register */
SCB->SCR &= ~((uint32_t)SCB_SCR_SLEEPDEEP_Msk);
/* select WFI or WFE command to enter sleep mode */
if(WFI_CMD == sleepmodecmd){
__WFI();
}else{
__WFE();
__WFE();
}
}
/*!
\brief PMU work at deepsleep mode
\param[in] ldo:
only one parameter can be selected which is shown as below:
\arg PMU_LDO_NORMAL: LDO operates normally when pmu enter deepsleep mode
\arg PMU_LDO_LOWPOWER: LDO work at low power mode when pmu enter deepsleep mode
\param[in] deepsleepmodecmd:
only one parameter can be selected which is shown as below:
\arg WFI_CMD: use WFI command
\arg WFE_CMD: use WFE command
\param[out] none
\retval none
*/
void pmu_to_deepsleepmode(uint32_t ldo,uint8_t deepsleepmodecmd)
{
/* clear stbmod and ldolp bits */
PMU_CTL &= ~((uint32_t)(PMU_CTL_STBMOD | PMU_CTL_LDOLP));
/* set ldolp bit according to pmu_ldo */
PMU_CTL |= ldo;
/* set sleepdeep bit of Cortex-M23 system control register */
SCB->SCR |= SCB_SCR_SLEEPDEEP_Msk;
/* select WFI or WFE command to enter deepsleep mode */
if(WFI_CMD == deepsleepmodecmd){
__WFI();
}else{
__SEV();
__WFE();
__WFE();
}
/* reset sleepdeep bit of Cortex-M23 system control register */
SCB->SCR &= ~((uint32_t)SCB_SCR_SLEEPDEEP_Msk);
}
/*!
\brief pmu work at standby mode
\param[in] none
\param[out] none
\retval none
*/
void pmu_to_standbymode(void)
{
/* switch to IRC8M clock as system clock, close HXTAL */
RCU_CFG0 &= ~RCU_CFG0_SCS;
RCU_CTL0 &= ~RCU_CTL0_HXTALEN;
/* set stbmod bit */
PMU_CTL |= PMU_CTL_STBMOD;
/* reset wakeup flag */
PMU_CTL |= PMU_CTL_WURST;
/* set sleepdeep bit of Cortex-M23 system control register */
SCB->SCR |= SCB_SCR_SLEEPDEEP_Msk;
REG32( 0xE000E010U ) &= 0x00010004U;
REG32( 0xE000E180U ) = 0XFFFFFFFBU;
REG32( 0xE000E184U ) = 0XFFFFFFFFU;
REG32( 0xE000E188U ) = 0xFFFFFFFFU;
/* select WFI command to enter standby mode */
__WFI();
}
/*!
\brief enable wakeup pin
\param[in] wakeup_pin:
one or more parameters can be selected which are shown as below:
\arg PMU_WAKEUP_PIN0: WKUP Pin 0 (PA0)
\arg PMU_WAKEUP_PIN1: WKUP Pin 1 (PC13)
\arg PMU_WAKEUP_PIN5: WKUP Pin 5 (PB5)
\arg PMU_WAKEUP_PIN6: WKUP Pin 6 (PB15)
\param[out] none
\retval none
*/
void pmu_wakeup_pin_enable(uint32_t wakeup_pin)
{
PMU_CS |= wakeup_pin;
}
/*!
\brief disable wakeup pin
\param[in] wakeup_pin:
one or more parameters can be selected which are shown as below:
\arg PMU_WAKEUP_PIN0: WKUP Pin 0 (PA0)
\arg PMU_WAKEUP_PIN1: WKUP Pin 1 (PC13)
\arg PMU_WAKEUP_PIN5: WKUP Pin 5 (PB5)
\arg PMU_WAKEUP_PIN6: WKUP Pin 6 (PB15)
\param[out] none
\retval none
*/
void pmu_wakeup_pin_disable(uint32_t wakeup_pin)
{
PMU_CS &= ~(wakeup_pin);
}
/*!
\brief enable backup domain write
\param[in] none
\param[out] none
\retval none
*/
void pmu_backup_write_enable(void)
{
PMU_CTL |= PMU_CTL_BKPWEN;
}
/*!
\brief disable backup domain write
\param[in] none
\param[out] none
\retval none
*/
void pmu_backup_write_disable(void)
{
PMU_CTL &= ~PMU_CTL_BKPWEN;
}
/*!
\brief get flag state
\param[in] flag:
only one parameter can be selected which is shown as below:
\arg PMU_FLAG_WAKEUP: wakeup flag
\arg PMU_FLAG_STANDBY: standby flag
\arg PMU_FLAG_LVD: lvd flag
\param[out] none
\retval FlagStatus SET or RESET
*/
FlagStatus pmu_flag_get(uint32_t flag)
{
FlagStatus ret_status = RESET;
if(PMU_CS & flag){
ret_status = SET;
}
return ret_status;
}
/*!
\brief clear flag bit
\param[in] flag:
one or more parameters can be selected which are shown as below:
\arg PMU_FLAG_RESET_WAKEUP: reset wakeup flag
\arg PMU_FLAG_RESET_STANDBY: reset standby flag
\param[out] none
\retval none
*/
void pmu_flag_clear(uint32_t flag)
{
if(RESET != (flag & PMU_FLAG_RESET_WAKEUP)){
/* reset wakeup flag */
PMU_CTL |= PMU_CTL_WURST;
}
if(RESET != (flag & PMU_FLAG_RESET_STANDBY)){
/* reset standby flag */
PMU_CTL |= PMU_CTL_STBRST;
}
}

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/*!
\file gd32e23x_rtc.c
\brief RTC driver
\version 2024-02-22, V2.1.0, firmware for GD32E23x
*/
/*
Copyright (c) 2024, GigaDevice Semiconductor Inc.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.
*/
#include "gd32e23x_rtc.h"
/*!
\brief reset most of the RTC registers
\param[in] none
\param[out] none
\retval ErrStatus: ERROR or SUCCESS
*/
ErrStatus rtc_deinit(void)
{
ErrStatus error_status = ERROR;
/* RTC_TAMP register is not under write protection */
RTC_TAMP = RTC_REGISTER_RESET;
/* disable the write protection */
RTC_WPK = RTC_UNLOCK_KEY1;
RTC_WPK = RTC_UNLOCK_KEY2;
/* reset RTC_CTL register, this can be done without the init mode */
RTC_CTL &= RTC_REGISTER_RESET;
/* enter init mode */
error_status = rtc_init_mode_enter();
if(ERROR != error_status){
/* before reset RTC_TIME and RTC_DATE, BPSHAD bit in RTC_CTL should be reset as the condition.
in order to read calendar from shadow register, not the real registers being reset */
RTC_TIME = RTC_REGISTER_RESET;
RTC_DATE = RTC_DATE_RESET;
RTC_PSC = RTC_PSC_RESET;
/* reset RTC_STAT register, also exit init mode.
at the same time, RTC_STAT_SOPF bit is reset, as the condition to reset RTC_SHIFTCTL register later */
RTC_STAT = RTC_STAT_RESET;
/* to write RTC_ALRM0SS register, ALRM0EN bit in RTC_CTL register should be reset as the condition */
RTC_ALRM0TD = RTC_REGISTER_RESET;
RTC_ALRM0SS = RTC_REGISTER_RESET;
/* reset RTC_SHIFTCTL and RTC_HRFC register, this can be done without the init mode */
RTC_SHIFTCTL = RTC_REGISTER_RESET;
RTC_HRFC = RTC_REGISTER_RESET;
error_status = rtc_register_sync_wait();
}
/* enable the write protection */
RTC_WPK = RTC_LOCK_KEY;
return error_status;
}
/*!
\brief initialize RTC registers
\param[in] rtc_initpara_struct: pointer to a rtc_parameter_struct structure which contains
parameters for initialization of the rtc peripheral
members of the structure and the member values are shown as below:
rtc_year: 0x0 - 0x99(BCD format)
rtc_month: RTC_JAN, RTC_FEB, RTC_MAR, RTC_APR, RTC_MAY, RTC_JUN,
RTC_JUL, RTC_AUG, RTC_SEP, RTC_OCT, RTC_NOV, RTC_DEC
rtc_date: 0x1 - 0x31(BCD format)
rtc_day_of_week: RTC_MONDAY, RTC_TUESDAY, RTC_WEDSDAY, RTC_THURSDAY
RTC_FRIDAY, RTC_SATURDAY, RTC_SUNDAY
rtc_hour: 0x0 - 0x12(BCD format) or 0x0 - 0x23(BCD format) depending on the rtc_display_format chose
rtc_minute: 0x0 - 0x59(BCD format)
rtc_second: 0x0 - 0x59(BCD format)
rtc_factor_asyn: 0x0 - 0x7F
rtc_factor_syn: 0x0 - 0x7FFF
rtc_am_pm: RTC_AM, RTC_PM
rtc_display_format: RTC_24HOUR, RTC_12HOUR
\param[out] none
\retval ErrStatus: ERROR or SUCCESS
*/
ErrStatus rtc_init(rtc_parameter_struct* rtc_initpara_struct)
{
ErrStatus error_status = ERROR;
uint32_t reg_time = 0x00U, reg_date = 0x00U;
reg_date = (DATE_YR(rtc_initpara_struct->rtc_year) | \
DATE_DOW(rtc_initpara_struct->rtc_day_of_week) | \
DATE_MON(rtc_initpara_struct->rtc_month) | \
DATE_DAY(rtc_initpara_struct->rtc_date));
reg_time = (rtc_initpara_struct->rtc_am_pm| \
TIME_HR(rtc_initpara_struct->rtc_hour) | \
TIME_MN(rtc_initpara_struct->rtc_minute) | \
TIME_SC(rtc_initpara_struct->rtc_second));
/* 1st: disable the write protection */
RTC_WPK = RTC_UNLOCK_KEY1;
RTC_WPK = RTC_UNLOCK_KEY2;
/* 2nd: enter init mode */
error_status = rtc_init_mode_enter();
if(ERROR != error_status){
RTC_PSC = (uint32_t)(PSC_FACTOR_A(rtc_initpara_struct->rtc_factor_asyn)| \
PSC_FACTOR_S(rtc_initpara_struct->rtc_factor_syn));
RTC_TIME = (uint32_t)reg_time;
RTC_DATE = (uint32_t)reg_date;
RTC_CTL &= (uint32_t)(~RTC_CTL_CS);
RTC_CTL |= rtc_initpara_struct->rtc_display_format;
/* 3rd: exit init mode */
rtc_init_mode_exit();
/* 4th: wait the RSYNF flag to set */
error_status = rtc_register_sync_wait();
}
/* 5th: enable the write protection */
RTC_WPK = RTC_LOCK_KEY;
return error_status;
}
/*!
\brief enter RTC init mode
\param[in] none
\param[out] none
\retval ErrStatus: ERROR or SUCCESS
*/
ErrStatus rtc_init_mode_enter(void)
{
uint32_t time_index = RTC_INITM_TIMEOUT;
uint32_t flag_status = RESET;
ErrStatus error_status = ERROR;
/* check whether it has been in init mode */
if((uint32_t)RESET == (RTC_STAT & RTC_STAT_INITF)){
RTC_STAT |= RTC_STAT_INITM;
/* wait until the INITF flag to be set */
do{
flag_status = RTC_STAT & RTC_STAT_INITF;
}while((--time_index > 0x00U) && ((uint32_t)RESET == flag_status));
if((uint32_t)RESET != flag_status){
error_status = SUCCESS;
}
}else{
error_status = SUCCESS;
}
return error_status;
}
/*!
\brief exit RTC init mode
\param[in] none
\param[out] none
\retval none
*/
void rtc_init_mode_exit(void)
{
RTC_STAT &= (uint32_t)(~RTC_STAT_INITM);
}
/*!
\brief wait until RTC_TIME and RTC_DATE registers are synchronized with APB clock, and the shadow
registers are updated
\param[in] none
\param[out] none
\retval ErrStatus: ERROR or SUCCESS
*/
ErrStatus rtc_register_sync_wait(void)
{
volatile uint32_t time_index = RTC_RSYNF_TIMEOUT;
uint32_t flag_status = RESET;
ErrStatus error_status = ERROR;
if((uint32_t)RESET == (RTC_CTL & RTC_CTL_BPSHAD)){
/* disable the write protection */
RTC_WPK = RTC_UNLOCK_KEY1;
RTC_WPK = RTC_UNLOCK_KEY2;
/* firstly clear RSYNF flag */
RTC_STAT &= (uint32_t)(~RTC_STAT_RSYNF);
/* wait until RSYNF flag to be set */
do{
flag_status = RTC_STAT & RTC_STAT_RSYNF;
}while((--time_index > 0x00U) && ((uint32_t)RESET == flag_status));
if((uint32_t)RESET != flag_status){
error_status = SUCCESS;
}
/* enable the write protection */
RTC_WPK = RTC_LOCK_KEY;
}else{
error_status = SUCCESS;
}
return error_status;
}
/*!
\brief get current time and date
\param[in] none
\param[out] rtc_initpara_struct: pointer to a rtc_parameter_struct structure which contains
parameters for initialization of the rtc peripheral
members of the structure and the member values are shown as below:
rtc_year: 0x0 - 0x99(BCD format)
rtc_month: RTC_JAN, RTC_FEB, RTC_MAR, RTC_APR, RTC_MAY, RTC_JUN,
RTC_JUL, RTC_AUG, RTC_SEP, RTC_OCT, RTC_NOV, RTC_DEC
rtc_date: 0x1 - 0x31(BCD format)
rtc_day_of_week: RTC_MONDAY, RTC_TUESDAY, RTC_WEDSDAY, RTC_THURSDAY
RTC_FRIDAY, RTC_SATURDAY, RTC_SUNDAY
rtc_hour: 0x0 - 0x12(BCD format) or 0x0 - 0x23(BCD format) depending on the rtc_display_format chose
rtc_minute: 0x0 - 0x59(BCD format)
rtc_second: 0x0 - 0x59(BCD format)
rtc_factor_asyn: 0x0 - 0x7F
rtc_factor_syn: 0x0 - 0x7FFF
rtc_am_pm: RTC_AM, RTC_PM
rtc_display_format: RTC_24HOUR, RTC_12HOUR
\retval none
*/
void rtc_current_time_get(rtc_parameter_struct* rtc_initpara_struct)
{
uint32_t temp_tr = 0x00U, temp_dr = 0x00U, temp_pscr = 0x00U, temp_ctlr = 0x00U;
temp_tr = (uint32_t)RTC_TIME;
temp_dr = (uint32_t)RTC_DATE;
temp_pscr = (uint32_t)RTC_PSC;
temp_ctlr = (uint32_t)RTC_CTL;
/* get current time and construct rtc_parameter_struct structure */
rtc_initpara_struct->rtc_year = (uint8_t)GET_DATE_YR(temp_dr);
rtc_initpara_struct->rtc_month = (uint8_t)GET_DATE_MON(temp_dr);
rtc_initpara_struct->rtc_date = (uint8_t)GET_DATE_DAY(temp_dr);
rtc_initpara_struct->rtc_day_of_week = (uint8_t)GET_DATE_DOW(temp_dr);
rtc_initpara_struct->rtc_hour = (uint8_t)GET_TIME_HR(temp_tr);
rtc_initpara_struct->rtc_minute = (uint8_t)GET_TIME_MN(temp_tr);
rtc_initpara_struct->rtc_second = (uint8_t)GET_TIME_SC(temp_tr);
rtc_initpara_struct->rtc_factor_asyn = (uint16_t)GET_PSC_FACTOR_A(temp_pscr);
rtc_initpara_struct->rtc_factor_syn = (uint16_t)GET_PSC_FACTOR_S(temp_pscr);
rtc_initpara_struct->rtc_am_pm = (uint32_t)(temp_tr & RTC_TIME_PM);
rtc_initpara_struct->rtc_display_format = (uint32_t)(temp_ctlr & RTC_CTL_CS);
}
/*!
\brief get current subsecond value
\param[in] none
\param[out] none
\retval current subsecond value
*/
uint32_t rtc_subsecond_get(void)
{
uint32_t reg = 0x00U;
/* if BPSHAD bit is reset, reading RTC_SS will lock RTC_TIME and RTC_DATE automatically */
reg = (uint32_t)RTC_SS;
/* read RTC_DATE to unlock the 3 shadow registers */
(void) (RTC_DATE);
return reg;
}
/*!
\brief configure RTC alarm
\param[in] rtc_alarm_time: pointer to a rtc_alarm_struct structure which contains
parameters for RTC alarm configuration
members of the structure and the member values are shown as below:
rtc_alarm_mask: RTC_ALARM_NONE_MASK, RTC_ALARM_DATE_MASK, RTC_ALARM_HOUR_MASK
RTC_ALARM_MINUTE_MASK, RTC_ALARM_SECOND_MASK, RTC_ALARM_ALL_MASK
rtc_weekday_or_date: RTC_ALARM_DATE_SELECTED, RTC_ALARM_WEEKDAY_SELECTED
rtc_alarm_day: 1) 0x1 - 0x31(BCD format) if RTC_ALARM_DATE_SELECTED is set
2) RTC_MONDAY, RTC_TUESDAY, RTC_WEDSDAY, RTC_THURSDAY, RTC_FRIDAY,
RTC_SATURDAY, RTC_SUNDAY if RTC_ALARM_WEEKDAY_SELECTED is set
rtc_alarm_hour: 0x0 - 0x12(BCD format) or 0x0 - 0x23(BCD format) depending on the rtc_display_format
rtc_alarm_minute: 0x0 - 0x59(BCD format)
rtc_alarm_second: 0x0 - 0x59(BCD format)
rtc_am_pm: RTC_AM, RTC_PM
\param[out] none
\retval none
*/
void rtc_alarm_config(rtc_alarm_struct* rtc_alarm_time)
{
uint32_t reg_alrm0td = 0x00U;
reg_alrm0td = (rtc_alarm_time->rtc_alarm_mask | \
rtc_alarm_time->rtc_weekday_or_date | \
rtc_alarm_time->rtc_am_pm | \
ALRM0TD_DAY(rtc_alarm_time->rtc_alarm_day) | \
ALRM0TD_HR(rtc_alarm_time->rtc_alarm_hour) | \
ALRM0TD_MN(rtc_alarm_time->rtc_alarm_minute) | \
ALRM0TD_SC(rtc_alarm_time->rtc_alarm_second));
/* disable the write protection */
RTC_WPK = RTC_UNLOCK_KEY1;
RTC_WPK = RTC_UNLOCK_KEY2;
RTC_ALRM0TD = (uint32_t)reg_alrm0td;
/* enable the write protection */
RTC_WPK = RTC_LOCK_KEY;
}
/*!
\brief configure subsecond of RTC alarm
\param[in] mask_subsecond: alarm subsecond mask
only one parameter can be selected which is shown as below:
\arg RTC_MASKSSC_0_14: mask alarm subsecond configuration
\arg RTC_MASKSSC_1_14: mask RTC_ALRM0SS_SSC[14:1], and RTC_ALRM0SS_SSC[0] is to be compared
\arg RTC_MASKSSC_2_14: mask RTC_ALRM0SS_SSC[14:2], and RTC_ALRM0SS_SSC[1:0] is to be compared
\arg RTC_MASKSSC_3_14: mask RTC_ALRM0SS_SSC[14:3], and RTC_ALRM0SS_SSC[2:0] is to be compared
\arg RTC_MASKSSC_4_14: mask RTC_ALRM0SS_SSC[14:4], and RTC_ALRM0SS_SSC[3:0] is to be compared
\arg RTC_MASKSSC_5_14: mask RTC_ALRM0SS_SSC[14:5], and RTC_ALRM0SS_SSC[4:0] is to be compared
\arg RTC_MASKSSC_6_14: mask RTC_ALRM0SS_SSC[14:6], and RTC_ALRM0SS_SSC[5:0] is to be compared
\arg RTC_MASKSSC_7_14: mask RTC_ALRM0SS_SSC[14:7], and RTC_ALRM0SS_SSC[6:0] is to be compared
\arg RTC_MASKSSC_8_14: mask RTC_ALRM0SS_SSC[14:8], and RTC_ALRM0SS_SSC[7:0] is to be compared
\arg RTC_MASKSSC_9_14: mask RTC_ALRM0SS_SSC[14:9], and RTC_ALRM0SS_SSC[8:0] is to be compared
\arg RTC_MASKSSC_10_14: mask RTC_ALRM0SS_SSC[14:10], and RTC_ALRM0SS_SSC[9:0] is to be compared
\arg RTC_MASKSSC_11_14: mask RTC_ALRM0SS_SSC[14:11], and RTC_ALRM0SS_SSC[10:0] is to be compared
\arg RTC_MASKSSC_12_14: mask RTC_ALRM0SS_SSC[14:12], and RTC_ALRM0SS_SSC[11:0] is to be compared
\arg RTC_MASKSSC_13_14: mask RTC_ALRM0SS_SSC[14:13], and RTC_ALRM0SS_SSC[12:0] is to be compared
\arg RTC_MASKSSC_14: mask RTC_ALRM0SS_SSC[14], and RTC_ALRM0SS_SSC[13:0] is to be compared
\arg RTC_MASKSSC_NONE: mask none, and RTC_ALRM0SS_SSC[14:0] is to be compared
\param[in] subsecond: alarm subsecond value(0x000 - 0x7FFF)
\param[out] none
\retval none
*/
void rtc_alarm_subsecond_config(uint32_t mask_subsecond, uint32_t subsecond)
{
/* disable the write protection */
RTC_WPK = RTC_UNLOCK_KEY1;
RTC_WPK = RTC_UNLOCK_KEY2;
RTC_ALRM0SS = mask_subsecond | subsecond;
/* enable the write protection */
RTC_WPK = RTC_LOCK_KEY;
}
/*!
\brief enable RTC alarm
\param[in] none
\param[out] none
\retval none
*/
void rtc_alarm_enable(void)
{
/* disable the write protection */
RTC_WPK = RTC_UNLOCK_KEY1;
RTC_WPK = RTC_UNLOCK_KEY2;
RTC_CTL |= RTC_CTL_ALRM0EN;
/* enable the write protection */
RTC_WPK = RTC_LOCK_KEY;
}
/*!
\brief disable RTC alarm
\param[in] none
\param[out] none
\retval ErrStatus: ERROR or SUCCESS
*/
ErrStatus rtc_alarm_disable(void)
{
volatile uint32_t time_index = RTC_ALRM0WF_TIMEOUT;
ErrStatus error_status = ERROR;
uint32_t flag_status = RESET;
/* disable the write protection */
RTC_WPK = RTC_UNLOCK_KEY1;
RTC_WPK = RTC_UNLOCK_KEY2;
/* clear the state of alarm */
RTC_CTL &= (uint32_t)(~RTC_CTL_ALRM0EN);
/* wait until ALRM0WF flag to be set after the alarm is disabled */
do{
flag_status = RTC_STAT & RTC_STAT_ALRM0WF;
}while((--time_index > 0x00U) && ((uint32_t)RESET == flag_status));
if((uint32_t)RESET != flag_status){
error_status = SUCCESS;
}
/* enable the write protection */
RTC_WPK = RTC_LOCK_KEY;
return error_status;
}
/*!
\brief get RTC alarm
\param[in] none
\param[out] rtc_alarm_time: pointer to a rtc_alarm_struct structure which contains
parameters for RTC alarm configuration
members of the structure and the member values are shown as below:
rtc_alarm_mask: RTC_ALARM_NONE_MASK, RTC_ALARM_DATE_MASK, RTC_ALARM_HOUR_MASK
RTC_ALARM_MINUTE_MASK, RTC_ALARM_SECOND_MASK, RTC_ALARM_ALL_MASK
rtc_weekday_or_date: RTC_ALARM_DATE_SELECTED, RTC_ALARM_WEEKDAY_SELECTED
rtc_alarm_day: 1) 0x1 - 0x31(BCD format) if RTC_ALARM_DATE_SELECTED is set
2) RTC_MONDAY, RTC_TUESDAY, RTC_WEDSDAY, RTC_THURSDAY, RTC_FRIDAY,
RTC_SATURDAY, RTC_SUNDAY if RTC_ALARM_WEEKDAY_SELECTED is set
rtc_alarm_hour: 0x0 - 0x12(BCD format) or 0x0 - 0x23(BCD format) depending on the rtc_display_format
rtc_alarm_minute: 0x0 - 0x59(BCD format)
rtc_alarm_second: 0x0 - 0x59(BCD format)
rtc_am_pm: RTC_AM, RTC_PM
\retval none
*/
void rtc_alarm_get(rtc_alarm_struct* rtc_alarm_time)
{
uint32_t reg_alrm0td = 0x00U;
/* get the value of RTC_ALRM0TD register */
reg_alrm0td = RTC_ALRM0TD;
/* get alarm parameters and construct the rtc_alarm_struct structure */
rtc_alarm_time->rtc_alarm_mask = reg_alrm0td & RTC_ALARM_ALL_MASK;
rtc_alarm_time->rtc_am_pm = (uint32_t)(reg_alrm0td & RTC_ALRM0TD_PM);
rtc_alarm_time->rtc_weekday_or_date = (uint32_t)(reg_alrm0td & RTC_ALRM0TD_DOWS);
rtc_alarm_time->rtc_alarm_day = (uint8_t)GET_ALRM0TD_DAY(reg_alrm0td);
rtc_alarm_time->rtc_alarm_hour = (uint8_t)GET_ALRM0TD_HR(reg_alrm0td);
rtc_alarm_time->rtc_alarm_minute = (uint8_t)GET_ALRM0TD_MN(reg_alrm0td);
rtc_alarm_time->rtc_alarm_second = (uint8_t)GET_ALRM0TD_SC(reg_alrm0td);
}
/*!
\brief get RTC alarm subsecond
\param[in] none
\param[out] none
\retval RTC alarm subsecond value
*/
uint32_t rtc_alarm_subsecond_get(void)
{
return ((uint32_t)(RTC_ALRM0SS & RTC_ALRM0SS_SSC));
}
/*!
\brief enable RTC time-stamp
\param[in] edge: specify which edge to detect of time-stamp
only one parameter can be selected which is shown as below:
\arg RTC_TIMESTAMP_RISING_EDGE: rising edge is valid event edge for timestamp event
\arg RTC_TIMESTAMP_FALLING_EDGE: falling edge is valid event edge for timestamp event
\param[out] none
\retval none
*/
void rtc_timestamp_enable(uint32_t edge)
{
uint32_t reg_ctl = 0x00U;
/* clear the bits to be configured in RTC_CTL */
reg_ctl = (uint32_t)(RTC_CTL & (uint32_t)(~(RTC_CTL_TSEG | RTC_CTL_TSEN)));
/* new configuration */
reg_ctl |= (uint32_t)(edge | RTC_CTL_TSEN);
/* disable the write protection */
RTC_WPK = RTC_UNLOCK_KEY1;
RTC_WPK = RTC_UNLOCK_KEY2;
RTC_CTL = (uint32_t)reg_ctl;
/* enable the write protection */
RTC_WPK = RTC_LOCK_KEY;
}
/*!
\brief disable RTC time-stamp
\param[in] none
\param[out] none
\retval none
*/
void rtc_timestamp_disable(void)
{
/* disable the write protection */
RTC_WPK = RTC_UNLOCK_KEY1;
RTC_WPK = RTC_UNLOCK_KEY2;
/* clear the TSEN bit */
RTC_CTL &= (uint32_t)(~ RTC_CTL_TSEN);
/* enable the write protection */
RTC_WPK = RTC_LOCK_KEY;
}
/*!
\brief get RTC timestamp time and date
\param[in] none
\param[out] rtc_timestamp: pointer to a rtc_timestamp_struct structure which contains
parameters for RTC time-stamp configuration
members of the structure and the member values are shown as below:
rtc_timestamp_month: RTC_JAN, RTC_FEB, RTC_MAR, RTC_APR, RTC_MAY, RTC_JUN,
RTC_JUL, RTC_AUG, RTC_SEP, RTC_OCT, RTC_NOV, RTC_DEC
rtc_timestamp_date: 0x1 - 0x31(BCD format)
rtc_timestamp_day: RTC_MONDAY, RTC_TUESDAY, RTC_WEDSDAY, RTC_THURSDAY, RTC_FRIDAY,
RTC_SATURDAY, RTC_SUNDAY if RTC_ALARM_WEEKDAY_SELECTED is set
rtc_timestamp_hour: 0x0 - 0x12(BCD format) or 0x0 - 0x23(BCD format) depending on the rtc_display_format
rtc_timestamp_minute: 0x0 - 0x59(BCD format)
rtc_timestamp_second: 0x0 - 0x59(BCD format)
rtc_am_pm: RTC_AM, RTC_PM
\retval none
*/
void rtc_timestamp_get(rtc_timestamp_struct* rtc_timestamp)
{
uint32_t temp_tts = 0x00U, temp_dts = 0x00U;
/* get the value of time_stamp registers */
temp_tts = (uint32_t)RTC_TTS;
temp_dts = (uint32_t)RTC_DTS;
/* get timestamp time and construct the rtc_timestamp_struct structure */
rtc_timestamp->rtc_am_pm = (uint32_t)(temp_tts & RTC_TTS_PM);
rtc_timestamp->rtc_timestamp_month = (uint8_t)GET_DTS_MON(temp_dts);
rtc_timestamp->rtc_timestamp_date = (uint8_t)GET_DTS_DAY(temp_dts);
rtc_timestamp->rtc_timestamp_day = (uint8_t)GET_DTS_DOW(temp_dts);
rtc_timestamp->rtc_timestamp_hour = (uint8_t)GET_TTS_HR(temp_tts);
rtc_timestamp->rtc_timestamp_minute = (uint8_t)GET_TTS_MN(temp_tts);
rtc_timestamp->rtc_timestamp_second = (uint8_t)GET_TTS_SC(temp_tts);
}
/*!
\brief get RTC time-stamp subsecond
\param[in] none
\param[out] none
\retval RTC time-stamp subsecond value
*/
uint32_t rtc_timestamp_subsecond_get(void)
{
return ((uint32_t)RTC_SSTS);
}
/*!
\brief enable RTC tamper
\param[in] rtc_tamper: pointer to a rtc_tamper_struct structure which contains
parameters for RTC tamper configuration
members of the structure and the member values are shown as below:
rtc_tamper_source: RTC_TAMPER0, RTC_TAMPER1
rtc_tamper_trigger: RTC_TAMPER_TRIGGER_EDGE_RISING, RTC_TAMPER_TRIGGER_EDGE_FALLING
RTC_TAMPER_TRIGGER_LEVEL_LOW, RTC_TAMPER_TRIGGER_LEVEL_HIGH
rtc_tamper_filter: RTC_FLT_EDGE, RTC_FLT_2S, RTC_FLT_4S, RTC_FLT_8S
rtc_tamper_sample_frequency: RTC_FREQ_DIV32768, RTC_FREQ_DIV16384, RTC_FREQ_DIV8192,
RTC_FREQ_DIV4096, RTC_FREQ_DIV2048, RTC_FREQ_DIV1024,
RTC_FREQ_DIV512, RTC_FREQ_DIV256
rtc_tamper_precharge_enable: DISABLE, ENABLE
rtc_tamper_precharge_time: RTC_PRCH_1C, RTC_PRCH_2C, RTC_PRCH_4C, RTC_PRCH_8C
rtc_tamper_with_timestamp: DISABLE, ENABLE
\param[out] none
\retval none
*/
void rtc_tamper_enable(rtc_tamper_struct* rtc_tamper)
{
/* disable tamper */
RTC_TAMP &= (uint32_t)~(rtc_tamper->rtc_tamper_source);
/* tamper filter must be used when the tamper source is voltage level detection */
RTC_TAMP &= (uint32_t)~RTC_TAMP_FLT;
/* the tamper source is voltage level detection */
if(rtc_tamper->rtc_tamper_filter != RTC_FLT_EDGE ){
RTC_TAMP &= (uint32_t)~(RTC_TAMP_DISPU | RTC_TAMP_PRCH | RTC_TAMP_FREQ | RTC_TAMP_FLT);
/* check if the tamper pin need precharge, if need, then configure the precharge time */
if(DISABLE == rtc_tamper->rtc_tamper_precharge_enable){
RTC_TAMP |= (uint32_t)RTC_TAMP_DISPU;
}else{
RTC_TAMP |= (uint32_t)(rtc_tamper->rtc_tamper_precharge_time);
}
RTC_TAMP |= (uint32_t)(rtc_tamper->rtc_tamper_sample_frequency);
RTC_TAMP |= (uint32_t)(rtc_tamper->rtc_tamper_filter);
}
RTC_TAMP &= (uint32_t)~RTC_TAMP_TPTS;
if(DISABLE != rtc_tamper->rtc_tamper_with_timestamp){
/* the tamper event also cause a time-stamp event */
RTC_TAMP |= (uint32_t)RTC_TAMP_TPTS;
}
/* configure the tamper trigger */
RTC_TAMP &= ((uint32_t)~((rtc_tamper->rtc_tamper_source) << RTC_TAMPER_TRIGGER_POS));
if(RTC_TAMPER_TRIGGER_EDGE_RISING != rtc_tamper->rtc_tamper_trigger){
RTC_TAMP |= (uint32_t)((rtc_tamper->rtc_tamper_source)<< RTC_TAMPER_TRIGGER_POS);
}
/* enable tamper */
RTC_TAMP |= (uint32_t)(rtc_tamper->rtc_tamper_source);
}
/*!
\brief disable RTC tamper
\param[in] source: specify which tamper source to be disabled
only one parameter can be selected which is shown as below:
\arg RTC_TAMPER0
\arg RTC_TAMPER1
\param[out] none
\retval none
*/
void rtc_tamper_disable(uint32_t source)
{
/* disable tamper */
RTC_TAMP &= (uint32_t)~source;
}
/*!
\brief enable specified RTC interrupt
\param[in] interrupt: specify which interrupt source to be enabled
only one parameter can be selected which is shown as below:
\arg RTC_INT_TIMESTAMP: timestamp interrupt
\arg RTC_INT_ALARM: alarm interrupt
\arg RTC_INT_TAMP: tamp interrupt
\param[out] none
\retval none
*/
void rtc_interrupt_enable(uint32_t interrupt)
{
/* disable the write protection */
RTC_WPK = RTC_UNLOCK_KEY1;
RTC_WPK = RTC_UNLOCK_KEY2;
/* enable the interrupts in RTC_CTL register */
RTC_CTL |= (uint32_t)(interrupt & (uint32_t)~RTC_TAMP_TPIE);
/* enable the interrupts in RTC_TAMP register */
RTC_TAMP |= (uint32_t)(interrupt & RTC_TAMP_TPIE);
/* enable the write protection */
RTC_WPK = RTC_LOCK_KEY;
}
/*!
\brief disble specified RTC interrupt
\param[in] interrupt: specify which interrupt source to be disabled
only one parameter can be selected which is shown as below:
\arg RTC_INT_TIMESTAMP: timestamp interrupt
\arg RTC_INT_ALARM: alarm interrupt
\arg RTC_INT_TAMP: tamp interrupt
\param[out] none
\retval none
*/
void rtc_interrupt_disable(uint32_t interrupt)
{
/* disable the write protection */
RTC_WPK = RTC_UNLOCK_KEY1;
RTC_WPK = RTC_UNLOCK_KEY2;
/* disable the interrupts in RTC_CTL register */
RTC_CTL &= (uint32_t)~(interrupt & (uint32_t)~RTC_TAMP_TPIE);
/* disable the interrupts in RTC_TAMP register */
RTC_TAMP &= (uint32_t)~(interrupt & RTC_TAMP_TPIE);
/* enable the write protection */
RTC_WPK = RTC_LOCK_KEY;
}
/*!
\brief check specified flag
\param[in] flag: specify which flag to check
only one parameter can be selected which is shown as below:
\arg RTC_FLAG_RECALIBRATION: recalibration pending flag
\arg RTC_FLAG_TAMP1: tamper 1 event flag
\arg RTC_FLAG_TAMP0: tamper 0 event flag
\arg RTC_FLAG_TIMESTAMP_OVERFLOW: time-stamp overflow event flag
\arg RTC_FLAG_TIMESTAMP: time-stamp event flag
\arg RTC_FLAG_ALARM0: alarm event flag
\arg RTC_FLAG_INIT: init mode event flag
\arg RTC_FLAG_RSYN: time and date registers synchronized event flag
\arg RTC_FLAG_YCM: year parameter configured event flag
\arg RTC_FLAG_SHIFT: shift operation pending flag
\arg RTC_FLAG_ALARM0_WRITTEN: alarm writen available flag
\param[out] none
\retval FlagStatus: SET or RESET
*/
FlagStatus rtc_flag_get(uint32_t flag)
{
FlagStatus flag_state = RESET;
if((uint32_t)RESET != (RTC_STAT & flag)){
flag_state = SET;
}
return flag_state;
}
/*!
\brief clear specified flag
\param[in] flag: specify which flag to clear
only one parameter can be selected which is shown as below:
\arg RTC_FLAG_TAMP1: tamper 1 event flag
\arg RTC_FLAG_TAMP0: tamper 0 event flag
\arg RTC_FLAG_TIMESTAMP_OVERFLOW: time-stamp overflow event flag
\arg RTC_FLAG_TIMESTAMP: time-stamp event flag
\arg RTC_FLAG_ALARM0: alarm event flag
\arg RTC_FLAG_RSYN: time and date registers synchronized event flag
\param[out] none
\retval none
*/
void rtc_flag_clear(uint32_t flag)
{
RTC_STAT &= (uint32_t)(~flag);
}
/*!
\brief configure rtc alternate output source
\param[in] source: specify signal to output
only one parameter can be selected which is shown as below:
\arg RTC_CALIBRATION_512HZ: when the LXTAL freqency is 32768Hz and the RTC_PSC
is the default value, output 512Hz signal
\arg RTC_CALIBRATION_1HZ: when the LXTAL freqency is 32768Hz and the RTC_PSC
is the default value, output 512Hz signal
\arg RTC_ALARM_HIGH: when the alarm flag is set, the output pin is high
\arg RTC_ALARM_LOW: when the Alarm flag is set, the output pin is low
\param[in] mode: specify the output pin (PC13) mode when output alarm signal
only one parameter can be selected which is shown as below:
\arg RTC_ALARM_OUTPUT_OD: open drain mode
\arg RTC_ALARM_OUTPUT_PP: push pull mode
\param[out] none
\retval none
*/
void rtc_alter_output_config(uint32_t source, uint32_t mode)
{
/* disable the write protection */
RTC_WPK = RTC_UNLOCK_KEY1;
RTC_WPK = RTC_UNLOCK_KEY2;
RTC_CTL &= (uint32_t)~(RTC_CTL_COEN | RTC_CTL_OS | RTC_CTL_OPOL | RTC_CTL_COS);
RTC_CTL |= (uint32_t)(source);
/* alarm output */
if((uint32_t)RESET != (source & RTC_OS_ENABLE)){
RTC_TAMP &= (uint32_t)~(RTC_TAMP_PC13VAL);
RTC_TAMP |= (uint32_t)(mode);
}
/* enable the write protection */
RTC_WPK = RTC_LOCK_KEY;
}
/*!
\brief configure RTC calibration register
\param[in] window: select calibration window
only one parameter can be selected which is shown as below:
\arg RTC_CALIBRATION_WINDOW_32S: 2exp20 RTCCLK cycles, 32s if RTCCLK = 32768 Hz
\arg RTC_CALIBRATION_WINDOW_16S: 2exp19 RTCCLK cycles, 16s if RTCCLK = 32768 Hz
\arg RTC_CALIBRATION_WINDOW_8S: 2exp18 RTCCLK cycles, 8s if RTCCLK = 32768 Hz
\param[in] plus: add RTC clock or not
only one parameter can be selected which is shown as below:
\arg RTC_CALIBRATION_PLUS_SET: add one RTC clock every 2048 rtc clock
\arg RTC_CALIBRATION_PLUS_RESET: no effect
\param[in] minus: the RTC clock to minus during the calibration window(0x0 - 0x1FF)
\param[out] none
\retval ErrStatus: ERROR or SUCCESS
*/
ErrStatus rtc_calibration_config(uint32_t window, uint32_t plus, uint32_t minus)
{
uint32_t time_index = RTC_HRFC_TIMEOUT;
ErrStatus error_status = ERROR;
uint32_t flag_status = RESET;
/* disable the write protection */
RTC_WPK = RTC_UNLOCK_KEY1;
RTC_WPK = RTC_UNLOCK_KEY2;
/* check if a calibration operation is ongoing */
do{
flag_status = RTC_STAT & RTC_STAT_SCPF;
}while((--time_index > 0x00U) && ((uint32_t)RESET != flag_status));
if((uint32_t)RESET == flag_status){
RTC_HRFC = (uint32_t)(window | plus | HRFC_CMSK(minus));
error_status = SUCCESS;
}
/* enable the write protection */
RTC_WPK = RTC_LOCK_KEY;
return error_status;
}
/*!
\brief adjust the daylight saving time by adding or substracting one hour from the current time
\param[in] operation: hour ajustment operation
only one parameter can be selected which is shown as below:
\arg RTC_CTL_A1H: add one hour
\arg RTC_CTL_S1H: substract one hour
\param[out] none
\retval none
*/
void rtc_hour_adjust(uint32_t operation)
{
/* disable the write protection */
RTC_WPK = RTC_UNLOCK_KEY1;
RTC_WPK = RTC_UNLOCK_KEY2;
RTC_CTL |= (uint32_t)(operation);
/* enable the write protection */
RTC_WPK = RTC_LOCK_KEY;
}
/*!
\brief adjust RTC second or subsecond value of current time
\param[in] add: add 1s to current time or not
only one parameter can be selected which is shown as below:
\arg RTC_SHIFT_ADD1S_RESET: no effect
\arg RTC_SHIFT_ADD1S_SET: add 1s to current time
\param[in] minus: number of subsecond to minus from current time(0x0 - 0x7FFF)
\param[out] none
\retval ErrStatus: ERROR or SUCCESS
*/
ErrStatus rtc_second_adjust(uint32_t add, uint32_t minus)
{
uint32_t time_index = RTC_SHIFTCTL_TIMEOUT;
ErrStatus error_status = ERROR;
uint32_t flag_status = RESET;
uint32_t temp=0U;
/* disable the write protection */
RTC_WPK = RTC_UNLOCK_KEY1;
RTC_WPK = RTC_UNLOCK_KEY2;
/* check if a shift operation is ongoing */
do{
flag_status = RTC_STAT & RTC_STAT_SOPF;
}while((--time_index > 0x00U) && ((uint32_t)RESET != flag_status));
temp = RTC_CTL & RTC_CTL_REFEN;
/* check if the function of reference clock detection is disabled */
if(((uint32_t)RESET == flag_status) && (RESET == temp)){
RTC_SHIFTCTL = (uint32_t)(add | SHIFTCTL_SFS(minus));
error_status = rtc_register_sync_wait();
}
/* enable the write protection */
RTC_WPK = RTC_LOCK_KEY;
return error_status;
}
/*!
\brief enable RTC bypass shadow registers function
\param[in] none
\param[out] none
\retval none
*/
void rtc_bypass_shadow_enable(void)
{
/* disable the write protection */
RTC_WPK = RTC_UNLOCK_KEY1;
RTC_WPK = RTC_UNLOCK_KEY2;
RTC_CTL |= (uint8_t)RTC_CTL_BPSHAD;
/* enable the write protection */
RTC_WPK = RTC_LOCK_KEY;
}
/*!
\brief disable RTC bypass shadow registers function
\param[in] none
\param[out] none
\retval none
*/
void rtc_bypass_shadow_disable(void)
{
/* disable the write protection */
RTC_WPK = RTC_UNLOCK_KEY1;
RTC_WPK = RTC_UNLOCK_KEY2;
RTC_CTL &= (uint8_t)~RTC_CTL_BPSHAD;
/* enable the write protection */
RTC_WPK = RTC_LOCK_KEY;
}
/*!
\brief enable RTC reference clock detection function
\param[in] none
\param[out] none
\retval ErrStatus: ERROR or SUCCESS
*/
ErrStatus rtc_refclock_detection_enable(void)
{
ErrStatus error_status = ERROR;
/* disable the write protection */
RTC_WPK = RTC_UNLOCK_KEY1;
RTC_WPK = RTC_UNLOCK_KEY2;
/* enter init mode */
error_status = rtc_init_mode_enter();
if(ERROR != error_status){
RTC_CTL |= (uint32_t)RTC_CTL_REFEN;
/* exit init mode */
rtc_init_mode_exit();
}
/* enable the write protection */
RTC_WPK = RTC_LOCK_KEY;
return error_status;
}
/*!
\brief disable RTC reference clock detection function
\param[in] none
\param[out] none
\retval ErrStatus: ERROR or SUCCESS
*/
ErrStatus rtc_refclock_detection_disable(void)
{
ErrStatus error_status = ERROR;
/* disable the write protection */
RTC_WPK = RTC_UNLOCK_KEY1;
RTC_WPK = RTC_UNLOCK_KEY2;
/* enter init mode */
error_status = rtc_init_mode_enter();
if(ERROR != error_status){
RTC_CTL &= (uint32_t)~RTC_CTL_REFEN;
/* exit init mode */
rtc_init_mode_exit();
}
/* enable the write protection */
RTC_WPK = RTC_LOCK_KEY;
return error_status;
}

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/*!
\file gd32e23x_spi.c
\brief SPI driver
\version 2024-02-22, V2.1.0, firmware for GD32E23x
*/
/*
Copyright (c) 2024, GigaDevice Semiconductor Inc.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.
*/
#include "gd32e23x_spi.h"
/* SPI/I2S parameter initialization mask */
#define SPI_INIT_MASK ((uint32_t)0x00003040U) /*!< SPI0 parameter initialization mask */
#define SPI_FIFO_INIT_MASK1 ((uint32_t)0x00003840U) /*!< SPI1 parameter initialization mask1 */
#define SPI_FIFO_INIT_MASK2 ((uint32_t)0x0000F0FFU) /*!< SPI1 parameter initialization mask2*/
#define I2S_INIT_MASK ((uint32_t)0x0000F047U) /*!< I2S parameter initialization mask */
#define SPI_FRAMESIZE_MASK ((uint32_t)0x00000800U) /*!< SPI0 frame size mask */
#define SPI_BYTEN_MASK ((uint32_t)0x00001000U) /*!< SPI1 access to FIFO mask */
#define SPI_TXLVL_EMPTY_MASK ((uint32_t)0x00001800U) /*!< SPI1 TXFIFO empty mask */
#define SPI_RXLVL_EMPTY_MASK ((uint32_t)0x00000600U) /*!< SPI1 RXFIFO empty mask */
/* I2S clock source selection, multiplication and division mask */
#define SPI_I2SPSC_RESET ((uint32_t)0x00000002U) /*!< I2S clock prescaler register reset value */
/*!
\brief reset SPI and I2S
\param[in] spi_periph: SPIx(x=0,1)
\param[out] none
\retval none
*/
void spi_i2s_deinit(uint32_t spi_periph)
{
switch(spi_periph) {
case SPI0:
/* reset SPI0 and I2S0 */
rcu_periph_reset_enable(RCU_SPI0RST);
rcu_periph_reset_disable(RCU_SPI0RST);
break;
case SPI1:
/* reset SPI1 */
rcu_periph_reset_enable(RCU_SPI1RST);
rcu_periph_reset_disable(RCU_SPI1RST);
break;
default :
break;
}
}
/*!
\brief initialize the parameters of SPI structure with the default values
\param[in] none
\param[out] spi_parameter_struct: the initialized structure spi_parameter_struct pointer
\retval none
*/
void spi_struct_para_init(spi_parameter_struct *spi_struct)
{
/* configure the SPI structure with the default values */
spi_struct->device_mode = SPI_SLAVE;
spi_struct->trans_mode = SPI_TRANSMODE_FULLDUPLEX;
spi_struct->frame_size = SPI_FRAMESIZE_8BIT;
spi_struct->nss = SPI_NSS_HARD;
spi_struct->endian = SPI_ENDIAN_MSB;
spi_struct->clock_polarity_phase = SPI_CK_PL_LOW_PH_1EDGE;
spi_struct->prescale = SPI_PSC_2;
}
/*!
\brief initialize SPI parameters
\param[in] spi_periph: SPIx(x=0,1)
\param[in] spi_struct: SPI parameter initialization stuct members of the structure
and the member values are shown as below:
device_mode: SPI_MASTER, SPI_SLAVE
trans_mode: SPI_TRANSMODE_FULLDUPLEX, SPI_TRANSMODE_RECEIVEONLY,
SPI_TRANSMODE_BDRECEIVE, SPI_TRANSMODE_BDTRANSMIT
frame_size: SPI_FRAMESIZE_4BIT, SPI_FRAMESIZE_5BIT
SPI_FRAMESIZE_6BIT, SPI_FRAMESIZE_7BIT
SPI_FRAMESIZE_8BIT, SPI_FRAMESIZE_9BIT
SPI_FRAMESIZE_10BIT, SPI_FRAMESIZE_11BIT
SPI_FRAMESIZE_12BIT, SPI_FRAMESIZE_13BIT
SPI_FRAMESIZE_14BIT, SPI_FRAMESIZE_15BIT
SPI_FRAMESIZE_16BIT
nss: SPI_NSS_SOFT, SPI_NSS_HARD
endian: SPI_ENDIAN_MSB, SPI_ENDIAN_LSB
clock_polarity_phase: SPI_CK_PL_LOW_PH_1EDGE, SPI_CK_PL_HIGH_PH_1EDGE
SPI_CK_PL_LOW_PH_2EDGE, SPI_CK_PL_HIGH_PH_2EDGE
prescale: SPI_PSC_n (n=2,4,8,16,32,64,128,256)
\param[out] none
\retval ErrStatus: ERROR or SUCCESS
*/
ErrStatus spi_init(uint32_t spi_periph, spi_parameter_struct *spi_struct)
{
uint32_t reg1 = 0, reg2 = 0U, reg3 = 0U;
reg1 = SPI_CTL0(spi_periph);
reg1 &= SPI_INIT_MASK;
reg2 = SPI_CTL0(spi_periph);
reg2 &= SPI_FIFO_INIT_MASK1;
reg3 = SPI_CTL1(spi_periph);
reg3 &= SPI_FIFO_INIT_MASK2;
if(SPI0 == spi_periph) {
/* select SPI as master or slave */
reg1 |= spi_struct->device_mode;
/* select SPI transfer mode */
reg1 |= spi_struct->trans_mode;
/* select SPI NSS use hardware or software */
reg1 |= spi_struct->nss;
/* select SPI LSB or MSB */
reg1 |= spi_struct->endian;
/* select SPI polarity and phase */
reg1 |= spi_struct->clock_polarity_phase;
/* select SPI prescaler to adjust transmit speed */
reg1 |= spi_struct->prescale;
/* select SPI frame size */
/* check SPI0 frame size is 8bits/16bits or not*/
if((SPI_FRAMESIZE_8BIT != spi_struct->frame_size) && (SPI_FRAMESIZE_16BIT != spi_struct->frame_size)) {
return ERROR;
} else {
reg1 |= (spi_struct->frame_size & SPI_FRAMESIZE_MASK);
}
/* write to SPI_CTL0 register */
SPI_CTL0(spi_periph) = (uint32_t)reg1;
} else {
/* select SPI as master or slave */
reg2 |= spi_struct->device_mode;
/* select SPI transfer mode */
reg2 |= spi_struct->trans_mode;
/* select SPI NSS use hardware or software */
reg2 |= spi_struct->nss;
/* select SPI LSB or MSB */
reg2 |= spi_struct->endian;
/* select SPI polarity and phase */
reg2 |= spi_struct->clock_polarity_phase;
/* select SPI prescaler to adjust transmit speed */
reg2 |= spi_struct->prescale;
/* write to SPI_CTL0 register */
SPI_CTL0(spi_periph) = (uint32_t)reg2;
/* select SPI data size */
reg3 |= spi_struct->frame_size;
/* write to SPI_CTL0 register */
SPI_CTL1(spi_periph) = (uint32_t)reg3;
}
/* select SPI mode */
SPI_I2SCTL(spi_periph) &= (uint32_t)(~SPI_I2SCTL_I2SSEL);
return SUCCESS;
}
/*!
\brief enable SPI
\param[in] spi_periph: SPIx(x=0,1)
\param[out] none
\retval none
*/
void spi_enable(uint32_t spi_periph)
{
SPI_CTL0(spi_periph) |= (uint32_t)SPI_CTL0_SPIEN;
}
/*!
\brief disable SPI
\param[in] spi_periph: SPIx(x=0,1)
\param[out] none
\retval none
*/
void spi_disable(uint32_t spi_periph)
{
SPI_CTL0(spi_periph) &= (uint32_t)(~SPI_CTL0_SPIEN);
}
/*!
\brief initialize I2S parameters
\param[in] spi_periph: SPIx(x=0)
\param[in] mode: I2S operation mode
only one parameter can be selected which is shown as below:
\arg I2S_MODE_SLAVETX: I2S slave transmit mode
\arg I2S_MODE_SLAVERX: I2S slave receive mode
\arg I2S_MODE_MASTERTX: I2S master transmit mode
\arg I2S_MODE_MASTERRX: I2S master receive mode
\param[in] standard: I2S standard
only one parameter can be selected which is shown as below:
\arg I2S_STD_PHILLIPS: I2S phillips standard
\arg I2S_STD_MSB: I2S MSB standard
\arg I2S_STD_LSB: I2S LSB standard
\arg I2S_STD_PCMSHORT: I2S PCM short standard
\arg I2S_STD_PCMLONG: I2S PCM long standard
\param[in] ckpl: I2S idle state clock polarity
only one parameter can be selected which is shown as below:
\arg I2S_CKPL_LOW: I2S clock polarity low level
\arg I2S_CKPL_HIGH: I2S clock polarity high level
\param[out] none
\retval none
*/
void i2s_init(uint32_t spi_periph, uint32_t mode, uint32_t standard, uint32_t ckpl)
{
uint32_t reg = 0U;
reg = SPI_I2SCTL(spi_periph);
reg &= I2S_INIT_MASK;
/* enable I2S mode */
reg |= (uint32_t)SPI_I2SCTL_I2SSEL;
/* select I2S mode */
reg |= (uint32_t)mode;
/* select I2S standard */
reg |= (uint32_t)standard;
/* select I2S polarity */
reg |= (uint32_t)ckpl;
/* write to SPI_I2SCTL register */
SPI_I2SCTL(spi_periph) = (uint32_t)reg;
}
/*!
\brief configure I2S prescaler
\param[in] spi_periph: SPIx(x=0)
\param[in] audiosample: I2S audio sample rate
only one parameter can be selected which is shown as below:
\arg I2S_AUDIOSAMPLE_8K: audio sample rate is 8KHz
\arg I2S_AUDIOSAMPLE_11K: audio sample rate is 11KHz
\arg I2S_AUDIOSAMPLE_16K: audio sample rate is 16KHz
\arg I2S_AUDIOSAMPLE_22K: audio sample rate is 22KHz
\arg I2S_AUDIOSAMPLE_32K: audio sample rate is 32KHz
\arg I2S_AUDIOSAMPLE_44K: audio sample rate is 44KHz
\arg I2S_AUDIOSAMPLE_48K: audio sample rate is 48KHz
\arg I2S_AUDIOSAMPLE_96K: audio sample rate is 96KHz
\arg I2S_AUDIOSAMPLE_192K: audio sample rate is 192KHz
\param[in] frameformat: I2S data length and channel length
only one parameter can be selected which is shown as below:
\arg I2S_FRAMEFORMAT_DT16B_CH16B: I2S data length is 16 bit and channel length is 16 bit
\arg I2S_FRAMEFORMAT_DT16B_CH32B: I2S data length is 16 bit and channel length is 32 bit
\arg I2S_FRAMEFORMAT_DT24B_CH32B: I2S data length is 24 bit and channel length is 32 bit
\arg I2S_FRAMEFORMAT_DT32B_CH32B: I2S data length is 32 bit and channel length is 32 bit
\param[in] mckout: I2S master clock output
only one parameter can be selected which is shown as below:
\arg I2S_MCKOUT_ENABLE: enable I2S master clock output
\arg I2S_MCKOUT_DISABLE: disable 2S master clock output
\param[out] none
\retval none
*/
void i2s_psc_config(uint32_t spi_periph, uint32_t audiosample, uint32_t frameformat, uint32_t mckout)
{
uint32_t i2sdiv = 2U, i2sof = 0U;
uint32_t clks = 0U;
uint32_t i2sclock = 0U;
/* deinitialize SPI_I2SPSC register */
SPI_I2SPSC(spi_periph) = SPI_I2SPSC_RESET;
/* get system clock */
i2sclock = rcu_clock_freq_get(CK_SYS);
/* configure the prescaler depending on the mclk output state, the frame format and audio sample rate */
if(I2S_MCKOUT_ENABLE == mckout) {
clks = (uint32_t)(((i2sclock / 256U) * 10U) / audiosample);
} else {
if(I2S_FRAMEFORMAT_DT16B_CH16B == frameformat) {
clks = (uint32_t)(((i2sclock / 32U) * 10U) / audiosample);
} else {
clks = (uint32_t)(((i2sclock / 64U) * 10U) / audiosample);
}
}
/* remove the floating point */
clks = (clks + 5U) / 10U;
i2sof = (clks & 0x00000001U);
i2sdiv = ((clks - i2sof) / 2U);
i2sof = (i2sof << 8U);
/* set the default values */
if((i2sdiv < 2U) || (i2sdiv > 255U)) {
i2sdiv = 2U;
i2sof = 0U;
}
/* configure SPI_I2SPSC */
SPI_I2SPSC(spi_periph) = (uint32_t)(i2sdiv | i2sof | mckout);
/* clear SPI_I2SCTL_DTLEN and SPI_I2SCTL_CHLEN bits */
SPI_I2SCTL(spi_periph) &= (uint32_t)(~(SPI_I2SCTL_DTLEN | SPI_I2SCTL_CHLEN));
/* configure data frame format */
SPI_I2SCTL(spi_periph) |= (uint32_t)frameformat;
}
/*!
\brief enable I2S
\param[in] spi_periph: SPIx(x=0)
\param[out] none
\retval none
*/
void i2s_enable(uint32_t spi_periph)
{
SPI_I2SCTL(spi_periph) |= (uint32_t)SPI_I2SCTL_I2SEN;
}
/*!
\brief disable I2S
\param[in] spi_periph: SPIx(x=0)
\param[out] none
\retval none
*/
void i2s_disable(uint32_t spi_periph)
{
SPI_I2SCTL(spi_periph) &= (uint32_t)(~SPI_I2SCTL_I2SEN);
}
/*!
\brief enable SPI NSS output
\param[in] spi_periph: SPIx(x=0,1)
\param[out] none
\retval none
*/
void spi_nss_output_enable(uint32_t spi_periph)
{
SPI_CTL1(spi_periph) |= (uint32_t)SPI_CTL1_NSSDRV;
}
/*!
\brief disable SPI NSS output
\param[in] spi_periph: SPIx(x=0,1)
\param[out] none
\retval none
*/
void spi_nss_output_disable(uint32_t spi_periph)
{
SPI_CTL1(spi_periph) &= (uint32_t)(~SPI_CTL1_NSSDRV);
}
/*!
\brief SPI NSS pin high level in software mode
\param[in] spi_periph: SPIx(x=0,1)
\param[out] none
\retval none
*/
void spi_nss_internal_high(uint32_t spi_periph)
{
SPI_CTL0(spi_periph) |= (uint32_t)SPI_CTL0_SWNSS;
}
/*!
\brief SPI NSS pin low level in software mode
\param[in] spi_periph: SPIx(x=0,1)
\param[out] none
\retval none
*/
void spi_nss_internal_low(uint32_t spi_periph)
{
SPI_CTL0(spi_periph) &= (uint32_t)(~SPI_CTL0_SWNSS);
}
/*!
\brief enable SPI DMA send or receive
\param[in] spi_periph: SPIx(x=0,1)
\param[in] dma: SPI DMA mode
only one parameter can be selected which is shown as below:
\arg SPI_DMA_TRANSMIT: SPI transmit data using DMA
\arg SPI_DMA_RECEIVE: SPI receive data using DMA
\param[out] none
\retval none
*/
void spi_dma_enable(uint32_t spi_periph, uint8_t dma)
{
if(SPI_DMA_TRANSMIT == dma) {
SPI_CTL1(spi_periph) |= (uint32_t)SPI_CTL1_DMATEN;
} else {
SPI_CTL1(spi_periph) |= (uint32_t)SPI_CTL1_DMAREN;
}
}
/*!
\brief disable SPI DMA send or receive
\param[in] spi_periph: SPIx(x=0,1)
\param[in] dma: SPI DMA mode
only one parameter can be selected which is shown as below:
\arg SPI_DMA_TRANSMIT: SPI transmit data using DMA
\arg SPI_DMA_RECEIVE: SPI receive data using DMA
\param[out] none
\retval none
*/
void spi_dma_disable(uint32_t spi_periph, uint8_t dma)
{
if(SPI_DMA_TRANSMIT == dma) {
SPI_CTL1(spi_periph) &= (uint32_t)(~SPI_CTL1_DMATEN);
} else {
SPI_CTL1(spi_periph) &= (uint32_t)(~SPI_CTL1_DMAREN);
}
}
/*!
\brief configure SPI total number of data to be transmitted by DMA is odd or not
\param[in] spi_periph: SPIx(x=1)
\param[in] odd: odd bytes in TX DMA channel
only one parameter can be selected which is shown as below:
\arg SPI_TXDMA_EVEN: number of byte in TX DMA channel is even
\arg SPI_TXDMA_ODD: number of byte in TX DMA channel is odd
\param[out] none
\retval none
*/
void spi_transmit_odd_config(uint32_t spi_periph, uint16_t odd)
{
/* clear SPI_CTL1_TXDMA_ODD bit */
SPI_CTL1(spi_periph) &= (uint32_t)(~SPI_CTL1_TXDMA_ODD);
/* configure SPI_CTL1_TXDMA_ODD bit */
SPI_CTL1(spi_periph) |= (uint32_t)odd;
}
/*!
\brief configure SPI total number of data to be received by DMA is odd or not
\param[in] spi_periph: SPIx(x=1)
\param[in] odd: odd bytes in RX DMA channel
only one parameter can be selected which is shown as below:
\arg SPI_RXDMA_EVEN: number of bytes in RX DMA channel is even
\arg SPI_RXDMA_ODD: number of bytes in RX DMA channel is odd
\param[out] none
\retval none
*/
void spi_receive_odd_config(uint32_t spi_periph, uint16_t odd)
{
/* clear SPI_CTL1_RXDMA_ODD bit */
SPI_CTL1(spi_periph) &= (uint32_t)(~SPI_CTL1_RXDMA_ODD);
/* configure SPI_CTL1_RXDMA_ODD bit */
SPI_CTL1(spi_periph) |= (uint32_t)odd;
}
/*!
\brief configure SPI data frame format
\param[in] spi_periph: SPIx(x=0,1)
\param[in] frame_format: SPI frame size
only one parameter can be selected which is shown as below:
\arg SPI_FRAMESIZE_xBIT(x=4,5..16, for SPI1, x=8,16, for SPI0):SPI frame size is x bits
\param[out] none
\retval ErrStatus: ERROR or SUCCESS
*/
ErrStatus spi_i2s_data_frame_format_config(uint32_t spi_periph, uint16_t frame_format)
{
uint32_t reg;
if(SPI0 == spi_periph) {
/* check SPI0 frame size is 8bits/16bits or not*/
if((SPI_FRAMESIZE_8BIT != frame_format) && (SPI_FRAMESIZE_16BIT != frame_format)) {
return ERROR;
} else {
/* clear SPI_CTL0_FF16 bit */
SPI_CTL0(spi_periph) &= (uint32_t)(~SPI_CTL0_FF16);
/* configure SPI_CTL0_FF16 bit */
SPI_CTL0(spi_periph) |= ((uint32_t)frame_format & SPI_FRAMESIZE_MASK);
}
} else {
reg = SPI_CTL1(spi_periph);
/* clear SPI_CTL1_DZ bits */
reg &= (uint32_t)(~SPI_CTL1_DZ);
reg |= (uint32_t)frame_format;
/* configure SPI_CTL1_DZ bits */
SPI_CTL1(spi_periph) = reg;
}
return SUCCESS;
}
/*!
\brief configure SPI access size to FIFO(8-bit or 16-bit)
\param[in] spi_periph: SPIx(x=1)
\param[in] fifo_access_size: byte access enable
only one parameter can be selected which is shown as below:
\arg SPI_HALFWORD_ACCESS: half-word access to FIFO
\arg SPI_BYTE_ACCESS: byte access to FIFO
\param[out] none
\retval none
*/
void spi_fifo_access_size_config(uint32_t spi_periph, uint16_t fifo_access_size)
{
/* clear SPI_CTL1_BYTEN bit */
SPI_CTL1(spi_periph) &= (uint32_t)(~SPI_CTL1_BYTEN);
/* confige SPI_CTL1_BYTEN bit */
SPI_CTL1(spi_periph) |= (uint32_t)fifo_access_size;
}
/*!
\brief configure SPI bidirectional transfer direction
\param[in] spi_periph: SPIx(x=0,1)
\param[in] transfer_direction: SPI transfer direction
only one parameter can be selected which is shown as below:
\arg SPI_BIDIRECTIONAL_TRANSMIT: SPI work in transmit-only mode
\arg SPI_BIDIRECTIONAL_RECEIVE: SPI work in receive-only mode
\param[out] none
\retval none
*/
void spi_bidirectional_transfer_config(uint32_t spi_periph, uint32_t transfer_direction)
{
if(SPI_BIDIRECTIONAL_TRANSMIT == transfer_direction) {
/* set the transmit-only mode */
SPI_CTL0(spi_periph) |= (uint32_t)SPI_BIDIRECTIONAL_TRANSMIT;
} else {
/* set the receive-only mode */
SPI_CTL0(spi_periph) &= SPI_BIDIRECTIONAL_RECEIVE;
}
}
/*!
\brief SPI transmit data
\param[in] spi_periph: SPIx(x=0,1)
\param[in] data: 16-bit data
\param[out] none
\retval none
*/
void spi_i2s_data_transmit(uint32_t spi_periph, uint16_t data)
{
uint32_t reg, byten;
if(SPI0 == spi_periph) {
SPI_DATA(spi_periph) = (uint32_t)data;
} else {
/* get the access size to FIFO */
byten = SPI_CTL1(spi_periph) & SPI_BYTEN_MASK;
if(RESET != byten) {
reg = spi_periph + 0x0CU;
*(uint8_t *)(reg) = (uint8_t)data;
} else {
SPI_DATA(spi_periph) = (uint16_t)data;
}
}
}
/*!
\brief SPI receive data
\param[in] spi_periph: SPIx(x=0,1)
\param[out] none
\retval 16-bit data
*/
uint16_t spi_i2s_data_receive(uint32_t spi_periph)
{
uint32_t reg, byten;
if(SPI0 == spi_periph) {
return ((uint16_t)SPI_DATA(spi_periph));
} else {
/* get the access size to FIFO */
byten = SPI_CTL1(spi_periph) & SPI_BYTEN_MASK;
if(RESET != byten) {
reg = spi_periph + 0x0CU;
return (uint16_t)(*(uint8_t *)(reg));
} else {
return ((uint16_t)SPI_DATA(spi_periph));
}
}
}
/*!
\brief clear SPI/I2S format error flag status
\param[in] spi_periph: SPIx(x=0,1)
\param[in] flag: SPI/I2S frame format error flag
\arg SPI_FLAG_FERR: only for SPI work in TI mode
\arg I2S_FLAG_FERR: for I2S
\param[out] none
\retval none
*/
void spi_i2s_format_error_clear(uint32_t spi_periph, uint32_t flag)
{
SPI_STAT(spi_periph) = (uint32_t)(~flag);
}
/*!
\brief set SPI CRC polynomial
\param[in] spi_periph: SPIx(x=0,1)
\param[in] crc_poly: CRC polynomial value
\param[out] none
\retval none
*/
void spi_crc_polynomial_set(uint32_t spi_periph, uint16_t crc_poly)
{
/* enable SPI CRC */
SPI_CTL0(spi_periph) |= (uint32_t)SPI_CTL0_CRCEN;
/* set SPI CRC polynomial */
SPI_CRCPOLY(spi_periph) = (uint32_t)crc_poly;
}
/*!
\brief get SPI CRC polynomial
\param[in] spi_periph: SPIx(x=0,1)
\param[out] none
\retval 16-bit CRC polynomial
*/
uint16_t spi_crc_polynomial_get(uint32_t spi_periph)
{
return ((uint16_t)SPI_CRCPOLY(spi_periph));
}
/*!
\brief set CRC length
\param[in] spi_periph: SPIx(x=1)
\param[in] crc_length: CRC length
only one parameter can be selected which is shown as below:
\arg SPI_CRC_8BIT: CRC length is 8 bits
\arg SPI_CRC_16BIT: CRC length is 16 bits
\param[out] none
\retval none
*/
void spi_crc_length_set(uint32_t spi_periph, uint16_t crc_length)
{
/* clear SPI_CTL0_CRCL bit */
SPI_CTL0(spi_periph) &= (uint32_t)(~SPI_CTL0_CRCL);
/* confige SPI_CTL0_CRCL bit */
SPI_CTL0(spi_periph) |= (uint32_t)crc_length;
}
/*!
\brief turn on CRC function
\param[in] spi_periph: SPIx(x=0,1)
\param[out] none
\retval none
*/
void spi_crc_on(uint32_t spi_periph)
{
SPI_CTL0(spi_periph) |= (uint32_t)SPI_CTL0_CRCEN;
}
/*!
\brief turn off CRC function
\param[in] spi_periph: SPIx(x=0,1)
\param[out] none
\retval none
*/
void spi_crc_off(uint32_t spi_periph)
{
SPI_CTL0(spi_periph) &= (uint32_t)(~SPI_CTL0_CRCEN);
}
/*!
\brief SPI next data is CRC value
\param[in] spi_periph: SPIx(x=0,1)
\param[out] none
\retval none
*/
void spi_crc_next(uint32_t spi_periph)
{
SPI_CTL0(spi_periph) |= (uint32_t)SPI_CTL0_CRCNT;
}
/*!
\brief get SPI CRC send value or receive value
\param[in] spi_periph: SPIx(x=0,1)
\param[in] crc: SPI crc value
only one parameter can be selected which is shown as below:
\arg SPI_CRC_TX: get transmit crc value
\arg SPI_CRC_RX: get receive crc value
\param[out] none
\retval 16-bit CRC value
*/
uint16_t spi_crc_get(uint32_t spi_periph, uint8_t crc)
{
if(SPI_CRC_TX == crc) {
return ((uint16_t)(SPI_TCRC(spi_periph)));
} else {
return ((uint16_t)(SPI_RCRC(spi_periph)));
}
}
/*!
\brief clear SPI CRC error flag status
\param[in] spi_periph: SPIx(x=0,1)
\param[out] none
\retval none
*/
void spi_crc_error_clear(uint32_t spi_periph)
{
SPI_STAT(spi_periph) = (uint32_t)(~SPI_FLAG_CRCERR);
}
/*!
\brief enable SPI TI mode
\param[in] spi_periph: SPIx(x=0,1)
\param[out] none
\retval none
*/
void spi_ti_mode_enable(uint32_t spi_periph)
{
SPI_CTL1(spi_periph) |= (uint32_t)SPI_CTL1_TMOD;
}
/*!
\brief disable SPI TI mode
\param[in] spi_periph: SPIx(x=0,1)
\param[out] none
\retval none
*/
void spi_ti_mode_disable(uint32_t spi_periph)
{
SPI_CTL1(spi_periph) &= (uint32_t)(~SPI_CTL1_TMOD);
}
/*!
\brief enable SPI NSS pulse mode
\param[in] spi_periph: SPIx(x=0,1)
\param[out] none
\retval none
*/
void spi_nssp_mode_enable(uint32_t spi_periph)
{
SPI_CTL1(spi_periph) |= (uint32_t)SPI_CTL1_NSSP;
}
/*!
\brief disable SPI NSS pulse mode
\param[in] spi_periph: SPIx(x=0,1)
\param[out] none
\retval none
*/
void spi_nssp_mode_disable(uint32_t spi_periph)
{
SPI_CTL1(spi_periph) &= (uint32_t)(~SPI_CTL1_NSSP);
}
/*!
\brief enable quad wire SPI
\param[in] spi_periph: SPIx(x=1)
\param[out] none
\retval none
*/
void spi_quad_enable(uint32_t spi_periph)
{
SPI_QCTL(spi_periph) |= (uint32_t)SPI_QCTL_QMOD;
}
/*!
\brief disable quad wire SPI
\param[in] spi_periph: SPIx(x=1)
\param[out] none
\retval none
*/
void spi_quad_disable(uint32_t spi_periph)
{
SPI_QCTL(spi_periph) &= (uint32_t)(~SPI_QCTL_QMOD);
}
/*!
\brief enable quad wire SPI write
\param[in] spi_periph: SPIx(x=1)
\param[out] none
\retval none
*/
void spi_quad_write_enable(uint32_t spi_periph)
{
SPI_QCTL(spi_periph) &= (uint32_t)(~SPI_QCTL_QRD);
}
/*!
\brief enable quad wire SPI read
\param[in] spi_periph: SPIx(x=1)
\param[out] none
\retval none
*/
void spi_quad_read_enable(uint32_t spi_periph)
{
SPI_QCTL(spi_periph) |= (uint32_t)SPI_QCTL_QRD;
}
/*!
\brief enable SPI_IO2 and SPI_IO3 pin output
\param[in] spi_periph: SPIx(x=1)
\param[out] none
\retval none
*/
void spi_quad_io23_output_enable(uint32_t spi_periph)
{
SPI_QCTL(spi_periph) |= (uint32_t)SPI_QCTL_IO23_DRV;
}
/*!
\brief disable SPI_IO2 and SPI_IO3 pin output
\param[in] spi_periph: SPIx(x=1)
\param[out] none
\retval none
*/
void spi_quad_io23_output_disable(uint32_t spi_periph)
{
SPI_QCTL(spi_periph) &= (uint32_t)(~SPI_QCTL_IO23_DRV);
}
/*!
\brief get SPI and I2S flag status
\param[in] spi_periph: SPIx(x=0,1)
\param[in] flag: SPI/I2S flag status
only one parameter can be selected which are shown as below:
\arg SPI_FLAG_TBE: transmit buffer empty flag
\arg SPI_FLAG_RBNE: receive buffer not empty flag
\arg SPI_FLAG_TRANS: transmit on-going flag
\arg SPI_FLAG_RXORERR: receive overrun error flag
\arg SPI_FLAG_CONFERR: mode config error flag
\arg SPI_FLAG_CRCERR: CRC error flag
\arg SPI_FLAG_FERR: SPI format error interrupt flag
\arg I2S_FLAG_TBE: transmit buffer empty flag
\arg I2S_FLAG_RBNE: receive buffer not empty flag
\arg I2S_FLAG_TRANS: transmit on-going flag
\arg I2S_FLAG_RXORERR: overrun error flag
\arg I2S_FLAG_TXURERR: underrun error flag
\arg I2S_FLAG_CH: channel side flag
\arg I2S_FLAG_FERR: I2S format error interrupt flag
only for SPI1:
\arg SPI_TXLVL_EMPTY: SPI TXFIFO is empty
\arg SPI_TXLVL_QUARTER_FULL: SPI TXFIFO is a quarter of full
\arg SPI_TXLVL_HAlF_FULL: SPI TXFIFO is a half of full
\arg SPI_TXLVL_FULL: SPI TXFIFO is full
\arg SPI_RXLVL_EMPTY: SPI RXFIFO is empty
\arg SPI_RXLVL_QUARTER_FULL: SPI RXFIFO is a quarter of full
\arg SPI_RXLVL_HAlF_FULL: SPI RXFIFO is a half of full
\arg SPI_RXLVL_FULL: SPI RXFIFO is full
\param[out] none
\retval FlagStatus: SET or RESET
*/
FlagStatus spi_i2s_flag_get(uint32_t spi_periph, uint32_t flag)
{
if(RESET != (SPI_STAT(spi_periph) & flag)) {
return SET;
} else {
if(SPI1 == spi_periph) {
/* check TXFIFO is empty or not */
if(SPI_TXLVL_EMPTY == flag) {
if(RESET != (SPI_STAT(spi_periph) & SPI_TXLVL_EMPTY_MASK)) {
return RESET;
} else {
return SET;
}
}
/* check RXFIFO is empty or not */
if(SPI_RXLVL_EMPTY == flag) {
if(RESET != (SPI_STAT(spi_periph) & SPI_RXLVL_EMPTY_MASK)) {
return RESET;
} else {
return SET;
}
}
}
return RESET;
}
}
/*!
\brief enable SPI and I2S interrupt
\param[in] spi_periph: SPIx(x=0,1)
\param[in] interrupt: SPI/I2S interrupt
only one parameter can be selected which is shown as below:
\arg SPI_I2S_INT_TBE: transmit buffer empty interrupt
\arg SPI_I2S_INT_RBNE: receive buffer not empty interrupt
\arg SPI_I2S_INT_ERR: CRC error, configuration error, reception overrun error,
transmission underrun error and format error interrupt
\param[out] none
\retval none
*/
void spi_i2s_interrupt_enable(uint32_t spi_periph, uint8_t interrupt)
{
SPI_CTL1(spi_periph) |= (uint32_t)interrupt;
}
/*!
\brief disable SPI and I2S interrupt
\param[in] spi_periph: SPIx(x=0,1)
\param[in] interrupt: SPI/I2S interrupt
only one parameter can be selected which is shown as below:
\arg SPI_I2S_INT_TBE: transmit buffer empty interrupt
\arg SPI_I2S_INT_RBNE: receive buffer not empty interrupt
\arg SPI_I2S_INT_ERR: CRC error, configuration error, reception overrun error,
transmission underrun error and format error interrupt
\param[out] none
\retval none
*/
void spi_i2s_interrupt_disable(uint32_t spi_periph, uint8_t interrupt)
{
SPI_CTL1(spi_periph) &= ~(uint32_t)interrupt;
}
/*!
\brief get SPI and I2S interrupt flag status
\param[in] spi_periph: SPIx(x=0,1)
\param[in] interrupt: SPI/I2S interrupt flag status
only one parameter can be selected which is shown as below:
\arg SPI_I2S_INT_FLAG_TBE: transmit buffer empty interrupt flag
\arg SPI_I2S_INT_FLAG_RBNE: receive buffer not empty interrupt flag
\arg SPI_I2S_INT_FLAG_RXORERR: overrun interrupt flag
\arg SPI_INT_FLAG_CONFERR: config error interrupt flag
\arg SPI_INT_FLAG_CRCERR: CRC error interrupt flag
\arg I2S_INT_FLAG_TXURERR: underrun error interrupt flag
\arg SPI_I2S_INT_FLAG_FERR: format error interrupt flag
\param[out] none
\retval FlagStatus: SET or RESET
*/
FlagStatus spi_i2s_interrupt_flag_get(uint32_t spi_periph, uint8_t interrupt)
{
uint32_t reg1 = SPI_STAT(spi_periph);
uint32_t reg2 = SPI_CTL1(spi_periph);
switch(interrupt) {
/* SPI/I2S transmit buffer empty interrupt */
case SPI_I2S_INT_FLAG_TBE:
reg1 = reg1 & SPI_STAT_TBE;
reg2 = reg2 & SPI_CTL1_TBEIE;
break;
/* SPI/I2S receive buffer not empty interrupt */
case SPI_I2S_INT_FLAG_RBNE:
reg1 = reg1 & SPI_STAT_RBNE;
reg2 = reg2 & SPI_CTL1_RBNEIE;
break;
/* SPI/I2S overrun interrupt */
case SPI_I2S_INT_FLAG_RXORERR:
reg1 = reg1 & SPI_STAT_RXORERR;
reg2 = reg2 & SPI_CTL1_ERRIE;
break;
/* SPI config error interrupt */
case SPI_INT_FLAG_CONFERR:
reg1 = reg1 & SPI_STAT_CONFERR;
reg2 = reg2 & SPI_CTL1_ERRIE;
break;
/* SPI CRC error interrupt */
case SPI_INT_FLAG_CRCERR:
reg1 = reg1 & SPI_STAT_CRCERR;
reg2 = reg2 & SPI_CTL1_ERRIE;
break;
/* I2S underrun error interrupt */
case I2S_INT_FLAG_TXURERR:
reg1 = reg1 & SPI_STAT_TXURERR;
reg2 = reg2 & SPI_CTL1_ERRIE;
break;
/* SPI/I2S format error interrupt */
case SPI_I2S_INT_FLAG_FERR:
reg1 = reg1 & SPI_STAT_FERR;
reg2 = reg2 & SPI_CTL1_ERRIE;
break;
default :
break;
}
/*get SPI/I2S interrupt flag status */
if((0U != reg1) && (0U != reg2)) {
return SET;
} else {
return RESET;
}
}

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/*!
\file gd32e23x_syscfg.c
\brief SYSCFG driver
\version 2024-02-22, V2.1.0, firmware for GD32E23x
*/
/*
Copyright (c) 2024, GigaDevice Semiconductor Inc.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.
*/
#include "gd32e23x_syscfg.h"
/*!
\brief reset the SYSCFG registers
\param[in] none
\param[out] none
\retval none
*/
void syscfg_deinit(void)
{
rcu_periph_reset_enable(RCU_CFGCMPRST);
rcu_periph_reset_disable(RCU_CFGCMPRST);
}
/*!
\brief enable the DMA channels remapping
\param[in] syscfg_dma_remap: specify the DMA channels to remap
\arg SYSCFG_DMA_REMAP_TIMER16: remap TIMER16 channel0 and UP DMA requests to channel1(defaut channel0)
\arg SYSCFG_DMA_REMAP_TIMER15: remap TIMER15 channel2 and UP DMA requests to channel3(defaut channel2)
\arg SYSCFG_DMA_REMAP_USART0RX: remap USART0 Rx DMA request to channel4(default channel2)
\arg SYSCFG_DMA_REMAP_USART0TX: remap USART0 Tx DMA request to channel3(default channel1)
\arg SYSCFG_DMA_REMAP_ADC: remap ADC DMA requests from channel0 to channel1
\arg SYSCFG_PA11_REMAP_PA12: remap PA11 PA12
\param[out] none
\retval none
*/
void syscfg_dma_remap_enable(uint32_t syscfg_dma_remap)
{
SYSCFG_CFG0 |= syscfg_dma_remap;
}
/*!
\brief disable the DMA channels remapping
\param[in] syscfg_dma_remap: specify the DMA channels to remap
\arg SYSCFG_DMA_REMAP_TIMER16: remap TIMER16 channel0 and UP DMA requests to channel1(defaut channel0)
\arg SYSCFG_DMA_REMAP_TIMER15: remap TIMER15 channel2 and UP DMA requests to channel3(defaut channel2)
\arg SYSCFG_DMA_REMAP_USART0RX: remap USART0 Rx DMA request to channel4(default channel2)
\arg SYSCFG_DMA_REMAP_USART0TX: remap USART0 Tx DMA request to channel3(default channel1)
\arg SYSCFG_DMA_REMAP_ADC: remap ADC DMA requests from channel0 to channel1
\arg SYSCFG_PA11_REMAP_PA12: remap PA11 PA12
\param[out] none
\retval none
*/
void syscfg_dma_remap_disable(uint32_t syscfg_dma_remap)
{
SYSCFG_CFG0 &= ~syscfg_dma_remap;
}
/*!
\brief enable PB9 high current capability
\param[in] none
\param[out] none
\retval none
*/
void syscfg_high_current_enable(void)
{
SYSCFG_CFG0 |= SYSCFG_HIGH_CURRENT_ENABLE;
}
/*!
\brief disable PB9 high current capability
\param[in] none
\param[out] none
\retval none
*/
void syscfg_high_current_disable(void)
{
SYSCFG_CFG0 &= SYSCFG_HIGH_CURRENT_DISABLE;
}
/*!
\brief configure the GPIO pin as EXTI Line
\param[in] exti_port: specify the GPIO port used in EXTI
\arg EXTI_SOURCE_GPIOx(x = A,B,C,F): EXTI GPIO port
\param[in] exti_pin: specify the EXTI line
\arg EXTI_SOURCE_PINx(GPIOA x = 0..15,GPIOB x = 0..15,GPIOC x = 13..15,GPIOF x = 0.1.6.7): EXTI GPIO pin
\param[out] none
\retval none
*/
void syscfg_exti_line_config(uint8_t exti_port, uint8_t exti_pin)
{
uint32_t clear_exti_mask = ~((uint32_t)EXTI_SS_MASK << (EXTI_SS_MSTEP(exti_pin)));
uint32_t config_exti_mask = ((uint32_t)exti_port) << (EXTI_SS_MSTEP(exti_pin));
switch(exti_pin / EXTI_SS_JSTEP){
case EXTISS0:
/* clear EXTI source line(0..3) */
SYSCFG_EXTISS0 &= clear_exti_mask;
/* configure EXTI soure line(0..3) */
SYSCFG_EXTISS0 |= config_exti_mask;
break;
case EXTISS1:
/* clear EXTI soure line(4..7) */
SYSCFG_EXTISS1 &= clear_exti_mask;
/* configure EXTI soure line(4..7) */
SYSCFG_EXTISS1 |= config_exti_mask;
break;
case EXTISS2:
/* clear EXTI soure line(8..11) */
SYSCFG_EXTISS2 &= clear_exti_mask;
/* configure EXTI soure line(8..11) */
SYSCFG_EXTISS2 |= config_exti_mask;
break;
case EXTISS3:
/* clear EXTI soure line(12..15) */
SYSCFG_EXTISS3 &= clear_exti_mask;
/* configure EXTI soure line(12..15) */
SYSCFG_EXTISS3 |= config_exti_mask;
break;
default:
break;
}
}
/*!
\brief connect TIMER0/14/15/16 break input to the selected parameter
\param[in] syscfg_lock: Specify the parameter to be connected
\arg SYSCFG_LOCK_LOCKUP: Cortex-M23 lockup output connected to the break input
\arg SYSCFG_LOCK_SRAM_PARITY_ERROR: SRAM_PARITY check error connected to the break input
\arg SYSCFG_LOCK_LVD: LVD interrupt connected to the break input
\param[out] none
\retval none
*/
void syscfg_lock_config(uint32_t syscfg_lock)
{
SYSCFG_CFG2 |= syscfg_lock;
}
/*!
\brief set the wait state counter value
\param[in] irq_latency: IRQ_LATENCY value (0x00 - 0xFF)
\param[out] none
\retval none
*/
void irq_latency_set(uint8_t irq_latency)
{
uint32_t reg;
reg = SYSCFG_CPU_IRQ_LAT &(~(uint32_t)SYSCFG_CPU_IRQ_LAT_IRQ_LATENCY);
reg |= (uint32_t)(IRQ_LATENCY(irq_latency));
SYSCFG_CPU_IRQ_LAT = (uint32_t)reg;
}
/*!
\brief check if the specified flag in SYSCFG_CFG2 is set or not.
\param[in] syscfg_flag: specify the flag in SYSCFG_CFG2 to check.
\arg SYSCFG_SRAM_PCEF: SRAM parity check error flag.
\param[out] none
\retval the syscfg_flag state returned (SET or RESET).
*/
FlagStatus syscfg_flag_get(uint32_t syscfg_flag)
{
if((SYSCFG_CFG2 & syscfg_flag) != (uint32_t)RESET){
return SET;
}else{
return RESET;
}
}
/*!
\brief clear the flag in SYSCFG_CFG2 by writing 1.
\param[in] syscfg_flag: Specify the flag in SYSCFG_CFG2 to clear.
\arg SYSCFG_SRAM_PCEF: SRAM parity check error flag.
\param[out] none
\retval none
*/
void syscfg_flag_clear(uint32_t syscfg_flag)
{
SYSCFG_CFG2 |= (uint32_t) syscfg_flag;
}

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sdk/GD32E23x_standard_peripheral/Src/gd32e23x_timer.c Normal file
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sdk/GD32E23x_standard_peripheral/Src/gd32e23x_usart.c Normal file
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sdk/GD32E23x_standard_peripheral/Src/gd32e23x_wwdgt.c Normal file
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/*!
\file gd32e23x_wwdgt.c
\brief WWDGT driver
\version 2024-02-22, V2.1.0, firmware for GD32E23x
*/
/*
Copyright (c) 2024, GigaDevice Semiconductor Inc.
All rights reserved.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.
*/
#include "gd32e23x_wwdgt.h"
/*!
\brief reset the window watchdog timer configuration
\param[in] none
\param[out] none
\retval none
*/
void wwdgt_deinit(void)
{
rcu_periph_reset_enable(RCU_WWDGTRST);
rcu_periph_reset_disable(RCU_WWDGTRST);
}
/*!
\brief start the window watchdog timer counter
\param[in] none
\param[out] none
\retval none
*/
void wwdgt_enable(void)
{
WWDGT_CTL |= WWDGT_CTL_WDGTEN;
}
/*!
\brief configure the window watchdog timer counter value
\param[in] counter_value: 0x00000000 - 0x0000007F
\param[out] none
\retval none
*/
void wwdgt_counter_update(uint16_t counter_value)
{
WWDGT_CTL = (uint32_t)(CTL_CNT(counter_value));
}
/*!
\brief configure counter value, window value, and prescaler divider value
\param[in] counter: 0x00000000 - 0x0000007F
\param[in] window: 0x00000000 - 0x0000007F
\param[in] prescaler: wwdgt prescaler value
only one parameter can be selected which is shown as below:
\arg WWDGT_CFG_PSC_DIV1: the time base of window watchdog counter = (PCLK1/4096)/1
\arg WWDGT_CFG_PSC_DIV2: the time base of window watchdog counter = (PCLK1/4096)/2
\arg WWDGT_CFG_PSC_DIV4: the time base of window watchdog counter = (PCLK1/4096)/4
\arg WWDGT_CFG_PSC_DIV8: the time base of window watchdog counter = (PCLK1/4096)/8
\param[out] none
\retval none
*/
void wwdgt_config(uint16_t counter, uint16_t window, uint32_t prescaler)
{
WWDGT_CFG = (uint32_t)(CFG_WIN(window) | prescaler);
WWDGT_CTL = (uint32_t)(CTL_CNT(counter));
}
/*!
\brief check early wakeup interrupt state of WWDGT
\param[in] none
\param[out] none
\retval FlagStatus: SET or RESET
*/
FlagStatus wwdgt_flag_get(void)
{
if(RESET != (WWDGT_STAT & WWDGT_STAT_EWIF)){
return SET;
}
return RESET;
}
/*!
\brief clear early wakeup interrupt state of WWDGT
\param[in] none
\param[out] none
\retval none
*/
void wwdgt_flag_clear(void)
{
WWDGT_STAT &= (~(uint32_t)WWDGT_STAT_EWIF);
}
/*!
\brief enable early wakeup interrupt of WWDGT
\param[in] none
\param[out] none
\retval none
*/
void wwdgt_interrupt_enable(void)
{
WWDGT_CFG |= WWDGT_CFG_EWIE;
}

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/*!
\file gd32e23x_it.c
\brief interrupt service routines
\version 2024-02-22, V2.1.0, firmware for GD32E23x
*/
/*
Copyright (c) 2024, GigaDevice Semiconductor Inc.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.
*/
#include "gd32e23x_it.h"
#include "main.h"
#include "systick.h"
/*!
\brief this function handles NMI exception
\param[in] none
\param[out] none
\retval none
*/
void NMI_Handler(void)
{
/* if NMI exception occurs, go to infinite loop */
while(1) {
}
}
/*!
\brief this function handles HardFault exception
\param[in] none
\param[out] none
\retval none
*/
void HardFault_Handler(void)
{
/* if Hard Fault exception occurs, go to infinite loop */
while(1) {
}
}
/*!
\brief this function handles SVC exception
\param[in] none
\param[out] none
\retval none
*/
void SVC_Handler(void)
{
/* if SVC exception occurs, go to infinite loop */
while(1) {
}
}
/*!
\brief this function handles PendSV exception
\param[in] none
\param[out] none
\retval none
*/
void PendSV_Handler(void)
{
/* if PendSV exception occurs, go to infinite loop */
while(1) {
}
}
/*!
\brief this function handles SysTick exception
\param[in] none
\param[out] none
\retval none
*/
void SysTick_Handler(void)
{
delay_decrement();
}
void TIMER13_IRQHandler(void)
{
if (timer_interrupt_flag_get(TIMER13, TIMER_INT_FLAG_UP) == SET)
{
timer_interrupt_flag_clear(TIMER13, TIMER_INT_FLAG_UP);
static uint8_t led_status = 0;
if (led_status)
{
//! turn on led & reconfig timer13 period to 19000(1900ms)
gpio_bit_write(GPIOB, GPIO_PIN_1, RESET);
timer_autoreload_value_config(TIMER13, 19200);
} else {
//! turn off led & reconfig timer13 period to 1000(100ms)
gpio_bit_write(GPIOB, GPIO_PIN_1, SET);
timer_autoreload_value_config(TIMER13, 800);
}
led_status = !led_status;
}
}

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/*!
\file main.c
\brief led spark with systick, USART print and key example
\version 2024-02-22, V2.1.0, firmware for GD32E23x
*/
/*
Copyright (c) 2024, GigaDevice Semiconductor Inc.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.
*/
#include "gd32e23x.h"
#include "systick.h"
#include <stdio.h>
#include "main.h"
#include "gd32e23x_libopt.h"
void led_config(void)
{
rcu_periph_clock_enable(RCU_GPIOB);
gpio_mode_set(GPIOB, GPIO_MODE_OUTPUT, GPIO_PUPD_NONE, GPIO_PIN_1);
gpio_output_options_set(GPIOB, GPIO_OTYPE_OD, GPIO_OSPEED_50MHZ, GPIO_PIN_1);
gpio_bit_write(GPIOB, GPIO_PIN_1, SET);
rcu_periph_clock_enable(RCU_TIMER13);
timer_deinit(RCU_TIMER13);
timer_parameter_struct timer_initpara;
timer_struct_para_init(&timer_initpara);
timer_initpara.prescaler =7199;
timer_initpara.alignedmode =TIMER_COUNTER_EDGE;
timer_initpara.counterdirection =TIMER_COUNTER_UP;
timer_initpara.period =999;
timer_initpara.clockdivision =TIMER_CKDIV_DIV1;
timer_init(TIMER13, &timer_initpara);
timer_auto_reload_shadow_enable(TIMER13);
timer_interrupt_enable(TIMER13, TIMER_INT_UP);
nvic_irq_enable(TIMER13_IRQn, 0);
timer_enable(TIMER13);
}
/*!
\brief main function
\param[in] none
\param[out] none
\retval none
*/
int main(void)
{
/* configure systick */
systick_config();
/* initilize the LEDs, USART and key */
// gd_eval_led_init(LED1);
// gd_eval_led_init(LED2);
// gd_eval_led_init(LED3);
// gd_eval_com_init(EVAL_COM);
// gd_eval_key_init(KEY_WAKEUP, KEY_MODE_GPIO);
/* print out the clock frequency of system, AHB, APB1 and APB2 */
// printf("\r\nCK_SYS is %lu", rcu_clock_freq_get(CK_SYS));
// printf("\r\nCK_AHB is %lu", rcu_clock_freq_get(CK_AHB));
// printf("\r\nCK_APB1 is %lu", rcu_clock_freq_get(CK_APB1));
// printf("\r\nCK_APB2 is %lu", rcu_clock_freq_get(CK_APB2));
led_config();
// rcu_periph_clock_enable(RCU_GPIOB);
//
// gpio_mode_set(GPIOB, GPIO_MODE_OUTPUT, GPIO_PUPD_NONE, GPIO_PIN_1);
// gpio_output_options_set(GPIOB, GPIO_OTYPE_OD, GPIO_OSPEED_50MHZ, GPIO_PIN_1);
// gpio_bit_write(GPIOB, GPIO_PIN_1, RESET);
while(1){
}
}
/* retarget the C library printf function to the USART */
int fputc(int ch, FILE *f)
{
usart_data_transmit(USART0, (uint8_t)ch);
while(RESET == usart_flag_get(USART0, USART_FLAG_TBE));
return ch;
}

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/*!
\file systick.c
\brief the systick configuration file
\version 2024-02-22, V2.1.0, firmware for GD32E23x
*/
/*
Copyright (c) 2024, GigaDevice Semiconductor Inc.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.
*/
#include "gd32e23x.h"
#include "systick.h"
volatile static uint32_t delay;
/*!
\brief configure systick
\param[in] none
\param[out] none
\retval none
*/
void systick_config(void)
{
/* setup systick timer for 1000Hz interrupts */
if(SysTick_Config(SystemCoreClock / 1000U)){
/* capture error */
while(1){
}
}
/* configure the systick handler priority */
NVIC_SetPriority(SysTick_IRQn, 0x00U);
}
/*!
\brief delay a time in milliseconds
\param[in] count: count in milliseconds
\param[out] none
\retval none
*/
void delay_1ms(uint32_t count)
{
delay = count;
while(0U != delay){
}
}
/*!
\brief delay decrement
\param[in] none
\param[out] none
\retval none
*/
void delay_decrement(void)
{
if(0U != delay){
delay--;
}
}

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.syntax unified
.cpu cortex-m23
.fpu softvfp
.thumb
.global g_pfnVectors
.global Default_Handler
/* necessary symbols defined in linker script to initialize data */
.word _sidata
.word _sdata
.word _edata
.word _sbss
.word _ebss
.section .text.Reset_Handler
.weak Reset_Handler
.type Reset_Handler, %function
/* reset Handler */
Reset_Handler:
ldr r0, =_estack
mov sp, r0
/* copy the data segment into ram */
movs r1, #0
b LoopCopyDataInit
CopyDataInit:
ldr r3, =_sidata
ldr r3, [r3, r1]
str r3, [r0, r1]
adds r1, r1, #4
LoopCopyDataInit:
ldr r0, =_sdata
ldr r3, =_edata
adds r2, r0, r1
cmp r2, r3
bcc CopyDataInit
ldr r2, =_sbss
b LoopFillZerobss
FillZerobss:
movs r3, #0
str r3, [r2]
adds r2, r2, #4
LoopFillZerobss:
ldr r3, = _ebss
cmp r2, r3
bcc FillZerobss
/* Call SystemInit function */
bl SystemInit
/* Call static constructors */
bl __libc_init_array
/*Call the main function */
bl main
LoopForever:
b LoopForever
.size Reset_Handler, .-Reset_Handler
.section .text.Default_Handler,"ax",%progbits
Default_Handler:
Infinite_Loop:
b Infinite_Loop
.size Default_Handler, .-Default_Handler
.section .vectors,"a",%progbits
.global __gVectors
__gVectors:
.word _sp /* Top of Stack */
.word Reset_Handler /* 1:Reset Handler */
.word NMI_Handler /* 2:NMI Handler */
.word HardFault_Handler /* 3:Hard Fault Handler */
.word 0 /* Reserved */
.word 0 /* Reserved */
.word 0 /* Reserved */
.word 0 /* Reserved */
.word 0 /* Reserved */
.word 0 /* Reserved */
.word 0 /* Reserved */
.word SVC_Handler /* 11:SVCall Handler */
.word 0 /* Reserved */
.word 0 /* Reserved */
.word PendSV_Handler /* 14:PendSV Handler */
.word SysTick_Handler /* 15:SysTick Handler */
/* external interrupts handler */
.word WWDGT_IRQHandler /* 16:Window Watchdog Timer */
.word LVD_IRQHandler /* 17:LVD through EXTI Line detect */
.word RTC_IRQHandler /* 18:RTC through EXTI Line */
.word FMC_IRQHandler /* 19:FMC */
.word RCU_IRQHandler /* 20:RCU */
.word EXTI0_1_IRQHandler /* 21:EXTI Line 0 and EXTI Line 1 */
.word EXTI2_3_IRQHandler /* 22:EXTI Line 2 and EXTI Line 3 */
.word EXTI4_15_IRQHandler /* 23:EXTI Line 4 to EXTI Line 15 */
.word 0 /* Reserved */
.word DMA_Channel0_IRQHandler /* 25:DMA Channel 0 */
.word DMA_Channel1_2_IRQHandler /* 26:DMA Channel 1 and DMA Channel 2 */
.word DMA_Channel3_4_IRQHandler /* 27:DMA Channel 3 and DMA Channel 4 */
.word ADC_CMP_IRQHandler /* 28:ADC and Comparator */
.word TIMER0_BRK_UP_TRG_COM_IRQHandler /* 29:TIMER0 Break,Update,Trigger and Commutation */
.word TIMER0_Channel_IRQHandler /* 30:TIMER0 Channel Capture Compare */
.word 0 /* Reserved */
.word TIMER2_IRQHandler /* 32:TIMER2 */
.word TIMER5_IRQHandler /* 33:TIMER5 */
.word 0 /* Reserved */
.word TIMER13_IRQHandler /* 35:TIMER13 */
.word TIMER14_IRQHandler /* 36:TIMER14 */
.word TIMER15_IRQHandler /* 37:TIMER15 */
.word TIMER16_IRQHandler /* 38:TIMER16 */
.word I2C0_EV_IRQHandler /* 39:I2C0 Event */
.word I2C1_EV_IRQHandler /* 40:I2C1 Event */
.word SPI0_IRQHandler /* 41:SPI0 */
.word SPI1_IRQHandler /* 42:SPI1 */
.word USART0_IRQHandler /* 43:USART0 */
.word USART1_IRQHandler /* 44:USART1 */
.word 0 /* Reserved */
.word 0 /* Reserved */
.word 0 /* Reserved */
.word I2C0_ER_IRQHandler /* 48:I2C0 Error */
.word 0 /* Reserved */
.word I2C1_ER_IRQHandler /* 50:I2C1 Error */
.size __gVectors, . - __gVectors
.weak NMI_Handler
.thumb_set NMI_Handler,Default_Handler
.weak HardFault_Handler
.thumb_set HardFault_Handler,Default_Handler
.weak SVC_Handler
.thumb_set SVC_Handler,Default_Handler
.weak PendSV_Handler
.thumb_set PendSV_Handler,Default_Handler
.weak SysTick_Handler
.thumb_set SysTick_Handler,Default_Handler
.weak WWDGT_IRQHandler
.thumb_set WWDGT_IRQHandler,Default_Handler
.weak LVD_IRQHandler
.thumb_set LVD_IRQHandler,Default_Handler
.weak TAMPER_IRQHandler
.thumb_set TAMPER_IRQHandler,Default_Handler
.weak RTC_IRQHandler
.thumb_set RTC_IRQHandler,Default_Handler
.weak FMC_IRQHandler
.thumb_set FMC_IRQHandler,Default_Handler
.weak RCU_IRQHandler
.thumb_set RCU_IRQHandler,Default_Handler
.weak EXTI0_1_IRQHandler
.thumb_set EXTI0_1_IRQHandler,Default_Handler
.weak EXTI2_3_IRQHandler
.thumb_set EXTI2_3_IRQHandler,Default_Handler
.weak EXTI4_15_IRQHandler
.thumb_set EXTI4_15_IRQHandler,Default_Handler
.weak DMA_Channel0_IRQHandler
.thumb_set DMA_Channel0_IRQHandler,Default_Handler
.weak DMA_Channel1_2_IRQHandler
.thumb_set DMA_Channel1_2_IRQHandler,Default_Handler
.weak DMA_Channel3_4_IRQHandler
.thumb_set DMA_Channel3_4_IRQHandler,Default_Handler
.weak ADC_CMP_IRQHandler
.thumb_set ADC_CMP_IRQHandler,Default_Handler
.weak TIMER0_BRK_UP_TRG_COM_IRQHandler
.thumb_set TIMER0_BRK_UP_TRG_COM_IRQHandler,Default_Handler
.weak TIMER0_Channel_IRQHandler
.thumb_set TIMER0_Channel_IRQHandler,Default_Handler
.weak TIMER2_IRQHandler
.thumb_set TIMER2_IRQHandler,Default_Handler
.weak TIMER5_IRQHandler
.thumb_set TIMER5_IRQHandler,Default_Handler
.weak TIMER13_IRQHandler
.thumb_set TIMER13_IRQHandler,Default_Handler
.weak TIMER14_IRQHandler
.thumb_set TIMER14_IRQHandler,Default_Handler
.weak TIMER15_IRQHandler
.thumb_set TIMER15_IRQHandler,Default_Handler
.weak TIMER16_IRQHandler
.thumb_set TIMER16_IRQHandler,Default_Handler
.weak I2C0_EV_IRQHandler
.thumb_set I2C0_EV_IRQHandler,Default_Handler
.weak I2C1_EV_IRQHandler
.thumb_set I2C1_EV_IRQHandler,Default_Handler
.weak SPI0_IRQHandler
.thumb_set SPI0_IRQHandler,Default_Handler
.weak SPI1_IRQHandler
.thumb_set SPI1_IRQHandler,Default_Handler
.weak USART0_IRQHandler
.thumb_set USART0_IRQHandler,Default_Handler
.weak USART1_IRQHandler
.thumb_set USART1_IRQHandler,Default_Handler
.weak I2C0_ER_IRQHandler
.thumb_set I2C0_ER_IRQHandler,Default_Handler
.weak I2C1_ER_IRQHandler
.thumb_set I2C1_ER_IRQHandler,Default_Handler