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yelvlab
2024-09-20 17:03:48 +08:00
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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--;
}
}