fix stupid error

CMakeLists.txt

@@ -4,10 +4,12 @@ include(cmake/toolchain.cmake)
 project(xlsw_3dp_LDC1612)
 
 set(VERSION_MAJOR 0)
-set(VERSION_MINOR 1)
+set(VERSION_MINOR 2)
-set(VERSION_PATCH 1)
+set(VERSION_PATCH 0)
 set(VERSION "V${VERSION_MAJOR}.${VERSION_MINOR}.${VERSION_PATCH}")
 string(TIMESTAMP CURRENT_DATE "%Y-%m-%d")
+set(IIC_TYPE "SW-IIC")
+#set(IIC_TYPE "HW-IIC")
 
 enable_language(C)
 enable_language(CXX)
@@ -29,6 +31,8 @@ set(TARGET_C_SRC
         ${CMAKE_SOURCE_DIR}/src/rs485.c
         ${CMAKE_SOURCE_DIR}/src/led.c
         ${CMAKE_SOURCE_DIR}/src/i2c.c
+        ${CMAKE_SOURCE_DIR}/src/soft_i2c.c
+        ${CMAKE_SOURCE_DIR}/src/fwdgt.c
 )
 
 add_executable(xlsw_3dp_LDC1612 ${TARGET_C_SRC})

CommunicationProtocol.md

@@ -0,0 +1,79 @@
+# 电涡流传感器模块通信协议
+
+## 电涡流传感器模块通信协议
+
+| **序号** | **修改内容** | **版本** | **日期**     | **修改人** |
+|:------:|:--------:|:------:|:----------:|:-------:|
+| 1      | 初版       | V1.0   | 2024-12-25 | Hulk    |
+|        |          |        |            |         |
+|        |          |        |            |         |
+|        |          |        |            |         |
+
+### 发包格式
+
+| **包头** | **类型** | **数据长度**    | **数据** | **校验** |
+|:------:|:------:|:-----------:|:------:|:------:|
+| D5     | 0x03   | Data Length |  Data  | CRC    |
+
+- 数据长度只包含数据部分，不包含包头、类型、数据长度、校验
+- CRC求和校验，包含类型、数据长度、数据
+- 数据部分为ascii码
+
+### 回包格式
+
+| **包头** |  **状态码**   | **数据长度**    | **数据** | **校验** |
+|:------:|:----------:|:-----------:|:------:|:------:|
+|   B5   |  0xF0 正常包  | Data Length |  Data  | CRC    |
+|   B5   | 0xF1 CRC错误 | Data Length |  Data  | CRC    |
+|   B5   | 0xF2 包头错误  | Data Length |  Data  | CRC    |
+|   B5   | 0xF3 类型错误  | Data Length |  Data  | CRC    |
+|   B5   | 0xF4 包长度错误 | Data Length |  Data  | CRC    |
+
+- 数据长度只包含数据部分，不包含包头、类型、数据长度、校验
+- CRC求和校验，包含状态码、数据长度、数据
+- 有效数据部分为uint32_t，高字节在前
+- 包错误和指令错误时，数据部分为ascii码 `err`
+
+-------------------
+
+## 电涡流传感器模块功能
+
+### 1. 读取电涡流传感器模块数据
+
+- 发送M1指令，读取电涡流传感器模块数据。
+    - `D5 03 02 4D 31 83`
+- 电涡流传感器模块涡流回复数据
+    - `B5 F0 04 01 AE 1B E4 A2`, 有效数据为 `0x01AE1BE4`，转换为`28187620`
+    - `B5 F0 04 04 19 C1 FA CC`, 有效数据为 `0x0419C1FAD2`，转换为`17612012242`
+- 错误命令（M3指令）回包
+    - `B5 F0 03 65 72 72 3C`，有效数据为 `err`
+- CRC错误回包
+    - `B5 F1 03 65 72 72 3D`, 有效数据为 `err`
+- 包头错误回包
+    - `B5 F2 03 65 72 72 3E`, 有效数据为 `err`
+- 类型错误回包
+    - `B5 F3 03 65 72 72 3F`, 有效数据为 `err`
+- 数据长度错误回包
+    - `B5 F4 03 65 72 72 40`, 有效数据为 `err`
+
+### 2. 读取电涡流传感器模块温度补偿数据
+
+- 发送M2指令，读取电涡流传感器模块数据。
+    - `D5 03 02 4D 32 84`
+- 电涡流传感器模块温度补偿回复数据
+    - `B5 F0 04 00 03 40 85 BC`, 有效数据为 `0x00034085`，转换为`213125`（单位为摄氏度*10）温度为21.3125℃
+    - `B5 F0 04 00 03 89 C3 43`, 有效数据为 `0x000389C3`，转换为`231875`（单位为摄氏度*10）温度为23.1875℃
+- 错误命令（M3指令）回包
+    - `B5 F0 03 65 72 72 3C`，有效数据为 `err`
+- CRC错误回包
+    - `B5 F1 03 65 72 72 3D`, 有效数据为 `err`
+- 包头错误回包
+    - `B5 F2 03 65 72 72 3E`, 有效数据为 `err`
+- 类型错误回包
+    - `B5 F3 03 65 72 72 3F`, 有效数据为 `err`
+- 数据长度错误回包
+    - `B5 F4 03 65 72 72 40`, 有效数据为 `err`
+
+### 3. 读取数据时间间隔
+
+- 推荐数据时间间隔至少为500ms

README.md

@@ -1,79 +1,9 @@
-# 电涡流传感器模块通信协议
+# XLSW-3DP-Sensor-LDC1612
+
+| **版本号** |      **修改内容**       |   **日期**   | **修改人** |
+|:-------:|:-------------------:|:----------:|:-------:|
+| v0.2.0  | 实现软件与硬件IIC可自选，添加看门狗 | 2024-12-29 | Hulk    |
 
 ## 电涡流传感器模块通信协议
 
-| **序号** | **修改内容** | **版本** | **日期**     | **修改人** |
+通信协议：[LDC1612通信协议](CommunicationProtocol.md)
-|:------:|:--------:|:------:|:----------:|:-------:|
-| 1      | 初版       | V1.0   | 2024-12-25 | Hulk    |
-|        |          |        |            |         |
-|        |          |        |            |         |
-|        |          |        |            |         |
-
-### 发包格式
-
-| **包头** | **类型** | **数据长度**    | **数据** | **校验** |
-|:------:|:------:|:-----------:|:------:|:------:|
-| D5     | 0x03   | Data Length |  Data  | CRC    |
-
-- 数据长度只包含数据部分，不包含包头、类型、数据长度、校验
-- CRC求和校验，包含类型、数据长度、数据
-- 数据部分为ascii码
-
-### 回包格式
-
-| **包头** |  **状态码**   | **数据长度**    | **数据** | **校验** |
-|:------:|:----------:|:-----------:|:------:|:------:|
-|   B5   |  0xF0 正常包  | Data Length |  Data  | CRC    |
-|   B5   | 0xF1 CRC错误 | Data Length |  Data  | CRC    |
-|   B5   | 0xF2 包头错误  | Data Length |  Data  | CRC    |
-|   B5   | 0xF3 类型错误  | Data Length |  Data  | CRC    |
-|   B5   | 0xF4 包长度错误 | Data Length |  Data  | CRC    |
-
-- 数据长度只包含数据部分，不包含包头、类型、数据长度、校验
-- CRC求和校验，包含状态码、数据长度、数据
-- 有效数据部分为uint32_t，高字节在前
-- 包错误和指令错误时，数据部分为ascii码 `err`
-
--------------------
-
-## 电涡流传感器模块功能
-
-### 1. 读取电涡流传感器模块数据
-
-- 发送M1指令，读取电涡流传感器模块数据。
-  - `D5 03 02 4D 31 83`
-- 电涡流传感器模块涡流回复数据
-  - `B5 F0 04 01 AE 1B E4 A2`, 有效数据为 `0x01AE1BE4`，转换为`28187620`
-  - `B5 F0 04 04 19 C1 FA CC`, 有效数据为 `0x0419C1FAD2`，转换为`17612012242`
-- 错误命令（M3指令）回包
-  - `B5 F0 03 65 72 72 3C`，有效数据为 `err`
-- CRC错误回包
-  - `B5 F1 03 65 72 72 3D`, 有效数据为 `err`
-- 包头错误回包
-  - `B5 F2 03 65 72 72 3E`, 有效数据为 `err`
-- 类型错误回包
-  - `B5 F3 03 65 72 72 3F`, 有效数据为 `err`
-- 数据长度错误回包
-  - `B5 F4 03 65 72 72 40`, 有效数据为 `err`
-
-### 2. 读取电涡流传感器模块温度补偿数据
-
-- 发送M2指令，读取电涡流传感器模块数据。
-  - `D5 03 02 4D 32 84`
-- 电涡流传感器模块温度补偿回复数据
-  - `B5 F0 04 00 03 40 85 BC`, 有效数据为 `0x00034085`，转换为`213125`（单位为摄氏度*10）温度为21.3125℃
-  - `B5 F0 04 00 03 89 C3 43`, 有效数据为 `0x000389C3`，转换为`231875`（单位为摄氏度*10）温度为23.1875℃
-- 错误命令（M3指令）回包
-  - `B5 F0 03 65 72 72 3C`，有效数据为 `err`
-- CRC错误回包
-  - `B5 F1 03 65 72 72 3D`, 有效数据为 `err`
-- 包头错误回包
-  - `B5 F2 03 65 72 72 3E`, 有效数据为 `err`
-- 类型错误回包
-  - `B5 F3 03 65 72 72 3F`, 有效数据为 `err`
-- 数据长度错误回包
-  - `B5 F4 03 65 72 72 40`, 有效数据为 `err`
-
-### 3. 读取数据时间间隔
-
-- 推荐数据时间间隔至少为500ms

cmake/toolchain.cmake

@@ -41,12 +41,12 @@ function(print_size_of_target TARGET)
             )
 endfunction()
 
-function(_generate_file TARGET PREFIX VERSION DATE OUTPUT_EXTENSION OBJCOPY_BFD_OUTPUT)
+function(_generate_file TARGET PREFIX VERSION DATE IIC_TYPE OUTPUT_EXTENSION OBJCOPY_BFD_OUTPUT)
     get_target_property(TARGET_OUTPUT_NAME ${TARGET} OUTPUT_NAME)
     if (TARGET_OUTPUT_NAME)
-        set(OUTPUT_FILE_NAME "${PREFIX}_${VERSION}_${DATE}.${OUTPUT_EXTENSION}")
+        set(OUTPUT_FILE_NAME "${PREFIX}_${VERSION}_${DATE}_${IIC_TYPE}.${OUTPUT_EXTENSION}")
     else()
-        set(OUTPUT_FILE_NAME "${TARGET}_${VERSION}_${DATE}.${OUTPUT_EXTENSION}")
+        set(OUTPUT_FILE_NAME "${TARGET}_${VERSION}_${DATE}_${IIC_TYPE}.${OUTPUT_EXTENSION}")
     endif()
 
     get_target_property(RUNTIME_OUTPUT_DIRECTORY ${TARGET} RUNTIME_OUTPUT_DIRECTORY)
@@ -66,11 +66,11 @@ function(_generate_file TARGET PREFIX VERSION DATE OUTPUT_EXTENSION OBJCOPY_BFD_
 endfunction()
 
 function(generate_binary_file TARGET PREFIX)
-    _generate_file(${TARGET} "${PREFIX}" "${VERSION}" "${CURRENT_DATE}" "bin" "binary")
+    _generate_file(${TARGET} "${PREFIX}" "${VERSION}" "${CURRENT_DATE}" "${IIC_TYPE}" "bin" "binary")
 endfunction()
 
 function(generate_hex_file TARGET PREFIX)
-    _generate_file(${TARGET} "${PREFIX}" "${VERSION}" "${CURRENT_DATE}" "hex" "ihex")
+    _generate_file(${TARGET} "${PREFIX}" "${VERSION}" "${CURRENT_DATE}" "${IIC_TYPE}" "hex" "ihex")
 endfunction()
 
 set(CMAKE_EXECUTABLE_SUFFIX_C   .elf)

inc/board_config.h

@@ -0,0 +1,44 @@
+//
+// Created by dell on 24-12-28.
+//
+
+#ifndef BOARD_CONFIG_H
+#define BOARD_CONFIG_H
+
+#define SOFTWARE_IIC
+
+// #define DEBUG_VERBOES
+
+/******************************************************************************/
+
+#define RCU_GPIO_I2C         RCU_GPIOF
+#define RCU_I2C              RCU_I2C0
+#define I2C_SCL_PORT         GPIOF
+#define I2C_SCL_PIN          GPIO_PIN_1
+#define I2C_SDA_PORT         GPIOF
+#define I2C_SDA_PIN          GPIO_PIN_0
+#define I2C_GPIO_AF          GPIO_AF_1
+
+/******************************************************************************/
+
+#define RS485_RCU            RCU_USART0
+#define RS485_GPIO_RCU       RCU_GPIOA
+#define RS485_GPIO_PORT      GPIOA
+#define RS485_TX_PIN         GPIO_PIN_2
+#define RS485_RX_PIN         GPIO_PIN_3
+#define RS485_PHY            USART0
+#define RS485_BAUDRATE       115200U
+#define RS485_EN_PIN         GPIO_PIN_1
+
+/******************************************************************************/
+
+#define LED_PORT             GPIOA
+#define LED_PIN              GPIO_PIN_7
+#define LED_RCU              RCU_GPIOA
+#define LED_BLINK_TIMER_RCU  RCU_TIMER16
+#define LED_BLINK_TIMER      TIMER16
+#define LED_BLINK_IRQ        TIMER16_IRQn
+
+/******************************************************************************/
+
+#endif //BOARD_CONFIG_H

inc/fwdgt.h

@@ -0,0 +1,15 @@
+//
+// Created by yelv1 on 24-12-29.
+//
+
+#ifndef FWDGT_H
+#define FWDGT_H
+
+#include "gd32e23x.h"
+#include "board_config.h"
+
+void watchdog_init(void);
+
+void fwdgt_reset_mcu(void);
+
+#endif //FWDGT_H

inc/i2c.h

@@ -15,20 +15,13 @@
 #include <stdlib.h>
 #include <math.h>
 
-/******************************************************************************/
+#include "board_config.h"
-
-#define I2C_SPEED 20000
-#define RCU_GPIO_I2C RCU_GPIOF
-#define RCU_I2C RCU_I2C0
-#define I2C_SCL_PORT GPIOF
-#define I2C_SCL_PIN GPIO_PIN_1
-#define I2C_SDA_PORT GPIOF
-#define I2C_SDA_PIN GPIO_PIN_0
-#define I2C_GPIO_AF GPIO_AF_1
 
 /******************************************************************************/
 
-#define I2C_TIME_OUT    (uint16_t)(10000)
+#define I2C_SPEED       20000
+
+#define I2C_TIME_OUT    (uint16_t)(5000)
 #define I2C_OK          1
 #define I2C_FAIL        0
 #define I2C_END         1

inc/ldc1612.h

@@ -13,8 +13,12 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <math.h>
+#include "board_config.h"
+#include "soft_i2c.h"
 #include "i2c.h"
 
+/***************************************************************************/
+
 #define LDC1612_ADDR         (0x2B << 1)
 
 /*Register Rddr*/
@@ -43,12 +47,13 @@
 
 /******************************************************************************/
 
-#define LDC1612_CONVERSION_TIME_CH0        0X0546  //0536
+#define LDC1612_CONVERSION_TIME_CH0        0x0546  //0536
-#define LDC1612_DRIVE_CURRENT              0X9000  //A000
+#define LDC1612_DRIVE_CURRENT              0x9000  //A000
-#define LDC1612_MUX_CONFIG                 0X020C  // no auto scan and filter bandwidth 3.3MHz
+#define LDC1612_MUX_CONFIG                 0x020C  // no auto scan and filter bandwidth 3.3MHz
-#define LDC1612_SENSOR_CONFIG              0X1601
+#define LDC1612_SENSOR_CONFIG              0x1601
 #define LDC1612_ERROR_CONFIG               0x0000
-#define LC_STABILIZE_TIME_CH0              0X001E //30
+#define LC_STABILIZE_TIME_CH0              0x001E //30
+#define LDC1612_RESET_DEV                  0x8000 //[15:0] 0b1000 0000 0000 0000
 
 /******************************************************************************/
 

inc/led.h

@@ -6,24 +6,7 @@
 #define LED_H
 
 #include "gd32e23x_it.h"
-#include "gd32e23x.h"
+#include "board_config.h"
-#include "systick.h"
-#include <stdbool.h>
-#include <string.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <math.h>
-
-/******************************************************************************/
-
-#define LED_PORT            GPIOA
-#define LED_PIN             GPIO_PIN_7
-#define LED_RCU             RCU_GPIOA
-#define LED_TIMER_RCU       RCU_TIMER16
-#define LED_TIMER           TIMER16
-#define LED_IRQ             TIMER16_IRQn
-
-/******************************************************************************/
 
 void led_config(void);
 

inc/main.h

@@ -35,8 +35,20 @@ OF SUCH DAMAGE.
 #ifndef MAIN_H
 #define MAIN_H
 
-// #define DEBUG_VERBOES
+#include <stdio.h>
+#include "gd32e23x.h"
+#include "systick.h"
+#include "gd32e23x_libopt.h"
+#include "rs485.h"
+#include "led.h"
+#include "ldc1612.h"
+#include "fwdgt.h"
+#include "board_config.h"
 
-void watchdog_init(void);
+#ifdef SOFTWARE_IIC
+#include "soft_i2c.h"
+#else
+#include "i2c.h"
+#endif
 
 #endif /* MAIN_H */

inc/rs485.h

@@ -8,30 +8,19 @@
 #include "gd32e23x_it.h"
 #include "gd32e23x.h"
 #include "systick.h"
-#include <stdbool.h>
-#include <string.h>
 #include <stdio.h>
-#include <stdlib.h>
+#include "ldc1612.h"
-#include <sys/types.h>
+#include "tmp112.h"
+#include "fwdgt.h"
+#include "board_config.h"
 
 /******************************************************************************/
 
-#define RS485_RCU            RCU_USART0
+#define RX_BUFFER_SIZE            32
-#define RS485_GPIO_RCU       RCU_GPIOA
-#define RS485_GPIO_PORT      GPIOA
-#define RS485_TX_PIN         GPIO_PIN_2
-#define RS485_RX_PIN         GPIO_PIN_3
-#define RS485_PHY            USART0
-#define RS485_BAUDRATE       115200U
-#define RS485_EN_PIN         GPIO_PIN_1
 
-/******************************************************************************/
+#define PROTOCOL_PACKAGE_HEADER   0xD5
-
+#define PROTOCOL_BOARD_TYPE       0x03
-#define RX_BUFFER_SIZE           32
+#define PROTOCOL_PACKAGE_LENGTH   0x02
-
-#define LDC1612_PACKAGE_HEADER   0xD5
-#define LDC1612_BOARD_TYPE       0x03
-#define LDC1612_PACKAGE_LENGTH   0x02
 
 /******************************************************************************/
 
@@ -47,13 +36,21 @@ typedef enum
 /******************************************************************************/
 
 void rs485_config(void);
+
 void process_command(uint8_t* cmd, size_t length);
+
 uint8_t calculate_crc(uint8_t data[], uint8_t data_length);
+
 validation_result_t validate_package_crc(uint8_t* data, uint8_t data_length);
+
 validation_result_t validate_package_header(uint8_t* data);
+
 validation_result_t validate_package_type(uint8_t* data);
+
 validation_result_t validate_data_length(uint8_t* data);
+
 void eddy_current_value_report(void);
+
 void tempture_value_report(void);
 
 #endif //RS485_H

inc/soft_i2c.h

@@ -0,0 +1,53 @@
+//
+// Created by dell on 24-12-28.
+//
+
+#ifndef SOFT_I2C_H
+#define SOFT_I2C_H
+
+#include "gd32e23x_it.h"
+#include "gd32e23x.h"
+#include "systick.h"
+#include "main.h"
+
+#include "board_config.h"
+
+/******************************************************************************/
+
+#define I2C_SCL_HIGH()      gpio_bit_set(I2C_SCL_PORT, I2C_SCL_PIN)
+#define I2C_SCL_LOW()       gpio_bit_reset(I2C_SCL_PORT, I2C_SCL_PIN)
+#define I2C_SDA_HIGH()      gpio_bit_set(I2C_SDA_PORT, I2C_SDA_PIN)
+#define I2C_SDA_LOW()       gpio_bit_reset(I2C_SDA_PORT, I2C_SDA_PIN)
+#define I2C_SDA_READ()      gpio_input_bit_get(I2C_SDA_PORT, I2C_SDA_PIN)
+
+/******************************************************************************/
+
+#define SOFT_I2C_OK          1
+#define SOFT_I2C_FAIL        0
+#define SOFT_I2C_END         1
+
+/******************************************************************************/
+
+void soft_i2c_delay(void);
+
+void soft_i2c_config(void);
+
+void soft_i2c_start(void);
+
+void soft_i2c_stop(void);
+
+void soft_i2c_send_ack(void);
+
+void soft_i2c_send_nack(void);
+
+uint8_t soft_i2c_wait_ack(void);
+
+void soft_i2c_send_byte(uint8_t data);
+
+uint8_t soft_i2c_receive_byte(uint8_t ack);
+
+uint8_t soft_i2c_write_16bits(uint8_t slave_addr, uint8_t reg_addr, uint8_t data[2]);
+
+uint8_t soft_i2c_read_16bits(uint8_t slave_addr, uint8_t reg_addr, uint8_t *data);
+
+#endif //SOFT_I2C_H

inc/tmp112.h

@@ -7,13 +7,14 @@
 
 #include "gd32e23x_it.h"
 #include "gd32e23x.h"
-#include "systick.h"
+
-#include <stdbool.h>
+#include "board_config.h"
-#include <string.h>
+
-#include <stdio.h>
+#ifdef SOFTWARE_IIC
-#include <stdlib.h>
+#include "soft_i2c.h"
-#include <math.h>
+#else
 #include "i2c.h"
+#endif
 
 /******************************************************************************/
 
@@ -21,6 +22,8 @@
 
 /******************************************************************************/
 
+#define TMP112A_TEMP_REG     0x00
+
 uint32_t tmp112a_get_raw_channel_result(void);
 
 #endif //TMP112_H

sdk/CMSIS/src/system_gd32e23x.c

@@ -45,9 +45,9 @@
 
 /* select a system clock by uncommenting the following line */
 //#define __SYSTEM_CLOCK_8M_HXTAL              (__HXTAL)
-#define __SYSTEM_CLOCK_8M_IRC8M              (__IRC8M)
+// #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 __SYSTEM_CLOCK_72M_PLL_IRC8M_DIV2    (uint32_t)(72000000)
 
 #define RCU_MODIFY(__delay)     do{                                     \
                                     volatile uint32_t i;                \

src/fwdgt.c

@@ -0,0 +1,28 @@
+//
+// Created by yelv1 on 24-12-29.
+//
+
+#include "fwdgt.h"
+
+void watchdog_init(void) {
+    /* Enable the LSI clock */
+    rcu_osci_on(RCU_IRC40K);
+    rcu_osci_stab_wait(RCU_IRC40K);
+
+    /* Configure FWDGT counter clock: 40KHz(IRC40K) / 64 = 0.625 KHz */
+    fwdgt_config(625, FWDGT_PSC_DIV64); // Set timeout to 1 seconds (625 / 0.625 KHz)
+
+    /* Enable FWDGT */
+    fwdgt_enable();
+}
+
+void fwdgt_reset_mcu(void) {
+    /* Enable the write access to the FWDGT_CTL register */
+    FWDGT_CTL = FWDGT_WRITEACCESS_ENABLE;
+
+    /* Configure FWDGT to trigger a system reset */
+    fwdgt_config(50, FWDGT_PSC_DIV4);
+
+    /* Reload the counter to trigger the reset */
+    fwdgt_counter_reload();
+}

src/gd32e23x_it.c

@@ -103,15 +103,15 @@ void SysTick_Handler(void) {
   * @retval None
   */
 void TIMER16_IRQHandler(void) {
-    if (timer_interrupt_flag_get(LED_TIMER, TIMER_INT_FLAG_UP) == SET) {
+    if (timer_interrupt_flag_get(LED_BLINK_TIMER, TIMER_INT_FLAG_UP) == SET) {
-        timer_interrupt_flag_clear(LED_TIMER, TIMER_INT_FLAG_UP);
+        timer_interrupt_flag_clear(LED_BLINK_TIMER, TIMER_INT_FLAG_UP);
         static uint8_t led_status = 0;
         if (led_status) {
             gpio_bit_write(LED_PORT, LED_PIN, RESET);
-            timer_autoreload_value_config(LED_TIMER, 19200);
+            timer_autoreload_value_config(LED_BLINK_TIMER, 19200);
         } else {
             gpio_bit_write(LED_PORT, LED_PIN, SET);
-            timer_autoreload_value_config(LED_TIMER, 800);
+            timer_autoreload_value_config(LED_BLINK_TIMER, 800);
         }
         led_status = !led_status;
     }

src/i2c.c

@@ -32,6 +32,8 @@ void i2c_gpio_config(void) {
     \retval     none
 */
 void i2c_config(void) {
+    /* configure I2C GPIO */
+    i2c_gpio_config();
     /* enable I2C clock */
     rcu_periph_clock_enable(RCU_I2C);
     /* configure I2C clock */

src/ldc1612.c

@@ -12,7 +12,12 @@ void ldc1612_set_conversion_time(uint8_t channel, uint16_t result) {
     uint8_t data[2] = {0};
     data[0] = (result >> 8) & 0xFF;
     data[1] = result & 0xFF;
+
+#ifdef SOFTWARE_IIC
+    soft_i2c_write_16bits(LDC1612_ADDR, SET_CONVERSION_TIME_REG_START + channel, data);
+#else
     i2c_write_16bits(LDC1612_ADDR, SET_CONVERSION_TIME_REG_START + channel, data);
+#endif
 }
 
 /** @brief set conversion offset.
@@ -23,7 +28,12 @@ void ldc1612_set_conversion_offset(uint8_t channel, uint16_t result) {
     uint8_t data[2] = {0};
     data[0] = (result >> 8) & 0xFF;
     data[1] = result & 0xFF;
+#ifdef SOFTWARE_IIC
+    soft_i2c_write_16bits(LDC1612_ADDR, SET_CONVERSION_OFFSET_REG_START + channel, data);
+#else
     i2c_write_16bits(LDC1612_ADDR, SET_CONVERSION_OFFSET_REG_START + channel, data);
+#endif
+
 }
 
 /** @brief Before conversion,wait LC sensor stabilize for a short time.
@@ -34,7 +44,11 @@ void ldc1612_set_LC_stabilize_time(uint8_t channel, uint16_t result) {
     uint8_t data[2] = {0};
     data[0] = (result >> 8) & 0xFF;
     data[1] = result & 0xFF;
+#ifdef SOFTWARE_IIC
+    soft_i2c_write_16bits(LDC1612_ADDR, SET_LC_STABILIZE_REG_START + channel, data);
+#else
     i2c_write_16bits(LDC1612_ADDR, SET_LC_STABILIZE_REG_START + channel, data);
+#endif
 }
 
 /** @brief set input frequency divide and fref divide.
@@ -65,8 +79,11 @@ void ldc1612_set_freq_divide(uint8_t channel) {
     data[0] = (value >> 8) & 0xFF;
     data[1] = value & 0xFF;
     // printf("\tFIN_DIV: %d, FREF_DIV: %d\r\n", fin_div, freq_div);
-
+#ifdef SOFTWARE_IIC
+    soft_i2c_write_16bits(LDC1612_ADDR, SET_FREQ_REG_START + channel, data);
+#else
     i2c_write_16bits(LDC1612_ADDR, SET_FREQ_REG_START + channel, data);
+#endif
 }
 
 /** @brief Error output config.
@@ -77,7 +94,11 @@ void ldc1612_set_error_config(uint16_t value) {
     data[0] = (value >> 8) & 0xFF;
     data[1] = value & 0xFF;
 
+#ifdef SOFTWARE_IIC
+    soft_i2c_write_16bits(LDC1612_ADDR, ERROR_CONFIG_REG, data);
+#else
     i2c_write_16bits(LDC1612_ADDR, ERROR_CONFIG_REG, data);
+#endif
 }
 
 /** @brief mux  config.
@@ -88,7 +109,11 @@ void ldc1612_set_mux_config(uint16_t value) {
     data[0] = (value >> 8) & 0xFF;
     data[1] = value & 0xFF;
 
+    #ifdef SOFTWARE_IIC
+    soft_i2c_write_16bits(LDC1612_ADDR, MUL_CONFIG_REG, data);
+    #else
     i2c_write_16bits(LDC1612_ADDR, MUL_CONFIG_REG, data);
+    #endif
 }
 
 /** @brief reset sensor.
@@ -98,7 +123,12 @@ void ldc1612_reset_sensor(void) {
     uint8_t data[2] = {0};
     data[0] = 0x80;
     data[1] = 0x00;
+
+    #ifdef SOFTWARE_IIC
+    soft_i2c_write_16bits(LDC1612_ADDR, SENSOR_RESET_REG, data);
+    #else
     i2c_write_16bits(LDC1612_ADDR, SENSOR_RESET_REG, data);
+    #endif
 }
 
 /** @brief set drive current of sensor.
@@ -109,7 +139,11 @@ void ldc1612_set_drive_current(uint8_t channel, uint16_t value) {
     data[0] = (value >> 8) & 0xFF;
     data[1] = value & 0xFF;
 
+    #ifdef SOFTWARE_IIC
+    soft_i2c_write_16bits(LDC1612_ADDR, SET_DRIVER_CURRENT_REG + channel, data);
+    #else
     i2c_write_16bits(LDC1612_ADDR, SET_DRIVER_CURRENT_REG + channel, data);
+    #endif
 }
 
 /** @brief Main config part of sensor.Contains select channel、start conversion、sleep mode、sensor activation mode、INT pin disable ..
@@ -120,7 +154,11 @@ void ldc1612_set_sensor_config(uint16_t value) {
     data[0] = (value >> 8) & 0xFF;
     data[1] = value & 0xFF;
 
+    #ifdef SOFTWARE_IIC
+    soft_i2c_write_16bits(LDC1612_ADDR, SENSOR_CONFIG_REG, data);
+    #else
     i2c_write_16bits(LDC1612_ADDR, SENSOR_CONFIG_REG, data);
+    #endif
 }
 
 void ldc1612_single_ch0_config(void) {
@@ -141,23 +179,41 @@ void ldc1612_single_ch0_config(void) {
 
 void ldc1612_iic_get_sensor_infomation(void) {
     uint8_t data[2] = {0};
-    // ldc1612_iic_read_16bits(READ_MANUFACTURER_ID, data);
+
+#ifdef SOFTWARE_IIC
+    soft_i2c_read_16bits(LDC1612_ADDR, READ_MANUFACTURER_ID, data);
+#else
     i2c_read_16bits(LDC1612_ADDR, READ_MANUFACTURER_ID, data);
+#endif
     printf("\tManufacturer: 0x%x", (data[0] << 8) | data[1]);
-    // ldc1612_iic_read_16bits(READ_DEVICE_ID, data);
+
+#ifdef SOFTWARE_IIC
+    soft_i2c_read_16bits(LDC1612_ADDR, READ_DEVICE_ID, data);
+#else
     i2c_read_16bits(LDC1612_ADDR, READ_DEVICE_ID, data);
+#endif
     printf("\tDevice: 0x%x", (data[0] << 8) | data[1]);
 }
 
 uint16_t ldc1612_get_manufacturer_id(void) {
     uint8_t data[2] = {0};
+
+#ifdef SOFTWARE_IIC
+    soft_i2c_read_16bits(LDC1612_ADDR, READ_MANUFACTURER_ID, data);
+#else
     i2c_read_16bits(LDC1612_ADDR, READ_MANUFACTURER_ID, data);
+#endif
     return (data[0] << 8) | data[1];
 }
 
 uint16_t ldc1612_get_deveice_id(void) {
     uint8_t data[2] = {0};
+
+#ifdef SOFTWARE_IIC
+    soft_i2c_read_16bits(LDC1612_ADDR, READ_DEVICE_ID, data);
+#else
     i2c_read_16bits(LDC1612_ADDR, READ_DEVICE_ID, data);
+#endif
     return (data[0] << 8) | data[1];
 }
 
@@ -169,11 +225,18 @@ uint32_t ldc1612_get_raw_channel_result(uint8_t channel) {
     uint32_t raw_value = 0;
     uint8_t value[2] = {0};
 
-    // ldc1612_iic_read_16bits(CONVERTION_RESULT_REG_START + channel, value);
+#ifdef SOFTWARE_IIC
+    soft_i2c_read_16bits(LDC1612_ADDR, CONVERTION_RESULT_REG_START + channel, value);
+#else
     i2c_read_16bits(LDC1612_ADDR, CONVERTION_RESULT_REG_START + channel, value);
+#endif
     raw_value |= (uint32_t) ((value[0] << 8) | value[1]) << 16;
-    // ldc1612_iic_read_16bits(CONVERTION_RESULT_REG_START + channel + 1, value);
+
+#ifdef SOFTWARE_IIC
+    soft_i2c_read_16bits(LDC1612_ADDR, CONVERTION_RESULT_REG_START + channel + 1, value);
+#else
     i2c_read_16bits(LDC1612_ADDR, CONVERTION_RESULT_REG_START + channel + 1, value);
+#endif
     raw_value |= (uint32_t) ((value[0] << 8) | value[1]);
     return ldc1612_parse_raw_result(raw_value);
 }

src/led.c

@@ -11,22 +11,22 @@ void led_config(void) {
     gpio_output_options_set(LED_PORT, GPIO_OTYPE_PP, GPIO_OSPEED_50MHZ, LED_PIN);
     gpio_bit_write(LED_PORT, LED_PIN, SET);
 
-    rcu_periph_clock_enable(LED_TIMER_RCU);
+    rcu_periph_clock_enable(LED_BLINK_TIMER_RCU);
-    timer_deinit(LED_TIMER);
+    timer_deinit(LED_BLINK_TIMER);
 
     timer_parameter_struct timer_initpara;
     timer_struct_para_init(&timer_initpara);
-    timer_initpara.prescaler = 799;
+    timer_initpara.prescaler = 7199;
     timer_initpara.alignedmode = TIMER_COUNTER_EDGE;
     timer_initpara.counterdirection = TIMER_COUNTER_UP;
-    timer_initpara.period = 999;
+    timer_initpara.period = 9999;
     timer_initpara.clockdivision = TIMER_CKDIV_DIV1;
-    timer_init(LED_TIMER, &timer_initpara);
+    timer_init(LED_BLINK_TIMER, &timer_initpara);
 
-    timer_auto_reload_shadow_enable(LED_TIMER);
+    timer_auto_reload_shadow_enable(LED_BLINK_TIMER);
-    timer_interrupt_enable(LED_TIMER, TIMER_INT_UP);
+    timer_interrupt_enable(LED_BLINK_TIMER, TIMER_INT_UP);
 
-    timer_enable(LED_TIMER);
+    timer_enable(LED_BLINK_TIMER);
 
-    nvic_irq_enable(LED_IRQ, 2);
+    nvic_irq_enable(LED_BLINK_IRQ, 2);
 }

src/main.c

@@ -5,33 +5,6 @@
     \version 2024-02-22, V2.1.0, firmware for GD32E23x
 */
 #include "main.h"
-#include <stdio.h>
-#include "gd32e23x.h"
-#include "systick.h"
-#include "gd32e23x_libopt.h"
-#include "rs485.h"
-#include "led.h"
-#include "i2c.h"
-#include "ldc1612.h"
-#include "tmp112.h"
-
-uint32_t g_temperature_uint32;
-uint32_t g_eddy_current_value_uint32;
-
-void watchdog_init(void) {
-    /* Enable the LSI clock */
-    rcu_osci_on(RCU_IRC40K);
-    rcu_osci_stab_wait(RCU_IRC40K);
-
-    /* Enable the FWDGT clock */
-    // rcu_periph_clock_enable(RCU_FWDGT);
-
-    /* Configure FWDGT counter clock: 40KHz(IRC40K) / 256 = 0.15625 KHz */
-    fwdgt_config(625, FWDGT_PSC_DIV256); // Set timeout to 4 seconds (625 / 0.15625 KHz)
-
-    /* Enable FWDGT */
-    fwdgt_enable();
-}
 
 /*!
     \brief      main function
@@ -47,11 +20,18 @@ int main(void) {
     rs485_config();
     /* configure LED */
     led_config();
-    /* configure I2C */
-    i2c_gpio_config();
-    i2c_config();
 
-    // ldc1612_iic_get_sensor_infomation();
+    /* configure I2C */
+#ifdef SOFTWARE_IIC
+    soft_i2c_config();
+#else
+    i2c_config();
+#endif
+
+#ifdef DEBUG_VERBOES
+    ldc1612_iic_get_sensor_infomation();
+#endif
+
     /* configure LDC1612 */
     ldc1612_single_ch0_config();
 
@@ -60,11 +40,6 @@ int main(void) {
 
     while (1) {
         delay_ms(99);
-        g_eddy_current_value_uint32 = 0;
-        g_temperature_uint32 = 0;
-        g_eddy_current_value_uint32 = ldc1612_get_raw_channel_result(CHANNEL_0);
-        g_temperature_uint32 = tmp112a_get_raw_channel_result();
-        // printf("1");
         fwdgt_counter_reload();
     }
 }

src/rs485.c

@@ -4,9 +4,6 @@
 
 #include "rs485.h"
 
-extern uint32_t g_temperature_uint32;
-extern uint32_t g_eddy_current_value_uint32;
-
 uint8_t package_header[3] = {0xB5, 0xF0, 0x04};
 uint8_t package_data[4] = {0};
 
@@ -53,8 +50,13 @@ void process_command(uint8_t *cmd, size_t length) {
             sprintf(combined_str, "%c%c", cmd[3], cmd[4]);
             if (strcmp(combined_str, "M1") == 0) {
                 eddy_current_value_report();
-            } else if (strcmp(combined_str, "M2") == 0) {
+            } else if (strcmp(combined_str, "M2") == 0)
+            {
                 tempture_value_report();
+            } else if (strcmp(combined_str, "M3") == 0)
+            {
+                printf("%c%c%c%c%c%c", 0xB5, 0xF1, 0x02, 0x6F, 0x6B, 0xCC);
+                fwdgt_reset_mcu();
             } else {
                 printf("%c%c%c%c%c%c%c", 0xB5, 0xF0, 0x03, 0x65, 0x72, 0x72, 0x3C);
                 return;
@@ -96,7 +98,7 @@ validation_result_t validate_package_crc(uint8_t *data, uint8_t data_length) {
 }
 
 validation_result_t validate_package_header(uint8_t *data) {
-    if (data[0] == LDC1612_PACKAGE_HEADER) {
+    if (data[0] == PROTOCOL_PACKAGE_HEADER) {
         return VALIDATION_SUCCESS;
     } else {
         return VALIDATION_HEADER_ERROR;
@@ -104,7 +106,7 @@ validation_result_t validate_package_header(uint8_t *data) {
 }
 
 validation_result_t validate_package_type(uint8_t *data) {
-    if (data[1] == LDC1612_BOARD_TYPE) {
+    if (data[1] == PROTOCOL_BOARD_TYPE) {
         return VALIDATION_SUCCESS;
     } else {
         return VALIDATION_TYPE_ERROR;
@@ -112,7 +114,7 @@ validation_result_t validate_package_type(uint8_t *data) {
 }
 
 validation_result_t validate_data_length(uint8_t *data) {
-    if (data[2] == LDC1612_PACKAGE_LENGTH) {
+    if (data[2] == PROTOCOL_PACKAGE_LENGTH) {
         return VALIDATION_SUCCESS;
     } else {
         return VALIDATION_LENGTH_ERROR;
@@ -120,10 +122,14 @@ validation_result_t validate_data_length(uint8_t *data) {
 }
 
 void eddy_current_value_report(void) {
-    package_data[0] = (g_eddy_current_value_uint32 >> 24) & 0xFF;
+    static uint32_t eddy_current_value_uint32 = 0;
-    package_data[1] = (g_eddy_current_value_uint32 >> 16) & 0xFF;
+
-    package_data[2] = (g_eddy_current_value_uint32 >> 8) & 0xFF;
+    eddy_current_value_uint32 = ldc1612_get_raw_channel_result(CHANNEL_0);
-    package_data[3] = g_eddy_current_value_uint32 & 0xFF;
+
+    package_data[0] = (eddy_current_value_uint32 >> 24) & 0xFF;
+    package_data[1] = (eddy_current_value_uint32 >> 16) & 0xFF;
+    package_data[2] = (eddy_current_value_uint32 >> 8) & 0xFF;
+    package_data[3] = eddy_current_value_uint32 & 0xFF;
 
     uint8_t combined_data[7];
     memcpy(combined_data, package_header, 3);
@@ -135,10 +141,14 @@ void eddy_current_value_report(void) {
 }
 
 void tempture_value_report(void) {
-    package_data[0] = (g_temperature_uint32 >> 24) & 0xFF;
+    static uint32_t temperature_uint32 = 0;
-    package_data[1] = (g_temperature_uint32 >> 16) & 0xFF;
+
-    package_data[2] = (g_temperature_uint32 >> 8) & 0xFF;
+    temperature_uint32 = tmp112a_get_raw_channel_result();
-    package_data[3] = g_temperature_uint32 & 0xFF;
+
+    package_data[0] = (temperature_uint32 >> 24) & 0xFF;
+    package_data[1] = (temperature_uint32 >> 16) & 0xFF;
+    package_data[2] = (temperature_uint32 >> 8) & 0xFF;
+    package_data[3] = temperature_uint32 & 0xFF;
 
     uint8_t combined_data[7];
     memcpy(combined_data, package_header, 3);

src/soft_i2c.c

@@ -0,0 +1,217 @@
+//
+// Created by dell on 24-12-28.
+//
+
+#include "soft_i2c.h"
+
+/*!
+    \brief      delay
+    \param[in]  none
+    \param[out] none
+    \retval     none
+*/
+void soft_i2c_delay(void) {
+    delay_us(20); // Adjust delay as needed
+    /* delay to freq
+     *  15KHz: delay_us(20);
+     *  65KHz: delay_us(1);
+     */
+}
+
+/*!
+    \brief      configure the software IIC GPIO
+    \param[in]  none
+    \param[out] none
+    \retval     none
+*/
+void soft_i2c_config(void) {
+    rcu_periph_clock_enable(RCU_GPIO_I2C);
+
+    gpio_mode_set(I2C_SCL_PORT, GPIO_MODE_OUTPUT, GPIO_PUPD_PULLUP, I2C_SCL_PIN);
+    gpio_output_options_set(I2C_SCL_PORT, GPIO_OTYPE_OD, GPIO_OSPEED_50MHZ, I2C_SCL_PIN);
+
+    gpio_mode_set(I2C_SDA_PORT, GPIO_MODE_OUTPUT, GPIO_PUPD_PULLUP, I2C_SDA_PIN);
+    gpio_output_options_set(I2C_SDA_PORT, GPIO_OTYPE_OD, GPIO_OSPEED_50MHZ, I2C_SDA_PIN);
+
+    I2C_SCL_HIGH();
+    I2C_SDA_HIGH();
+}
+
+/*!
+    \brief      generate I2C start signal
+    \param[in]  none
+    \param[out] none
+    \retval     none
+*/
+void soft_i2c_start(void) {
+    I2C_SDA_HIGH();
+    I2C_SCL_HIGH();
+    soft_i2c_delay();
+    I2C_SDA_LOW();
+    soft_i2c_delay();
+    I2C_SCL_LOW();
+}
+
+/*!
+    \brief      generate I2C stop signal
+    \param[in]  none
+    \param[out] none
+    \retval     none
+*/
+void soft_i2c_stop(void) {
+    // sda_out();
+    I2C_SCL_LOW();
+    I2C_SDA_LOW();
+    soft_i2c_delay();
+    I2C_SCL_HIGH();
+    soft_i2c_delay();
+    I2C_SDA_HIGH();
+}
+
+/*!
+    \brief      send I2C ACK signal
+    \param[in]  none
+    \param[out] none
+    \retval     none
+*/
+void soft_i2c_send_ack(void) {
+    // sda_out();
+    I2C_SDA_LOW();
+    soft_i2c_delay();
+    I2C_SCL_HIGH();
+    soft_i2c_delay();
+    I2C_SCL_LOW();
+    soft_i2c_delay();
+    I2C_SDA_HIGH();
+}
+
+/*!
+    \brief      send I2C NACK signal
+    \param[in]  none
+    \param[out] none
+    \retval     none
+*/
+void soft_i2c_send_nack(void) {
+    I2C_SDA_HIGH();
+    soft_i2c_delay();
+    I2C_SCL_HIGH();
+    soft_i2c_delay();
+    I2C_SCL_LOW();
+    soft_i2c_delay();
+    I2C_SDA_HIGH();
+}
+
+/*!
+    \brief      wait I2C ACK signal
+    \param[in]  none
+    \param[out] none
+    \retval     0: ACK received, 1: ACK not received
+*/
+uint8_t soft_i2c_wait_ack(void) {
+    I2C_SDA_HIGH();
+    soft_i2c_delay();
+    I2C_SCL_HIGH();
+    soft_i2c_delay();
+    uint8_t ack = !I2C_SDA_READ();
+    I2C_SCL_LOW();
+    return ack;
+}
+
+/*!
+    \brief      send a byte via I2C
+    \param[in]  byte: byte to be sent
+    \param[out] none
+    \retval     none
+*/
+void soft_i2c_send_byte(uint8_t byte) {
+    // sda_out();
+    for (int i = 0; i < 8; i++) {
+        if (byte & 0x80) {
+            I2C_SDA_HIGH();
+        } else {
+            I2C_SDA_LOW();
+        }
+        byte <<= 1;
+        soft_i2c_delay();
+        I2C_SCL_HIGH();
+        soft_i2c_delay();
+        I2C_SCL_LOW();
+        soft_i2c_delay();
+    }
+}
+
+/*!
+    \brief      receive a byte via I2C
+    \param[in]  ack: 1: send ACK, 0: send NACK
+    \param[out] none
+    \retval     received byte
+*/
+uint8_t soft_i2c_receive_byte(uint8_t ack) {
+    uint8_t byte = 0;
+    I2C_SDA_HIGH();
+    for (int i = 0; i < 8; i++) {
+        byte <<= 1;
+        I2C_SCL_HIGH();
+        soft_i2c_delay();
+        if (I2C_SDA_READ()) {
+            byte |= 0x01;
+        }
+        I2C_SCL_LOW();
+        soft_i2c_delay();
+    }
+    if (ack) {
+        soft_i2c_send_ack();
+    } else {
+        soft_i2c_send_nack();
+    }
+    return byte;
+}
+
+uint8_t soft_i2c_write_16bits(uint8_t slave_addr, uint8_t reg_addr, uint8_t data[2]) {
+    soft_i2c_start();
+    soft_i2c_send_byte(slave_addr);
+    if (!soft_i2c_wait_ack()) {
+        soft_i2c_stop();
+        return SOFT_I2C_FAIL;
+    }
+    soft_i2c_send_byte(reg_addr);
+    if (!soft_i2c_wait_ack()) {
+        soft_i2c_stop();
+        return SOFT_I2C_FAIL;
+    }
+    soft_i2c_send_byte(data[0]);
+    if (!soft_i2c_wait_ack()) {
+        soft_i2c_stop();
+        return SOFT_I2C_FAIL;
+    }
+    soft_i2c_send_byte(data[1]);
+    if (soft_i2c_wait_ack()){}
+    soft_i2c_stop();
+    return SOFT_I2C_OK;
+}
+
+uint8_t soft_i2c_read_16bits(uint8_t slave_addr, uint8_t reg_addr, uint8_t *data)
+{
+    soft_i2c_start();
+    soft_i2c_send_byte(slave_addr);
+    if (!soft_i2c_wait_ack()) {
+        soft_i2c_stop();
+        return SOFT_I2C_FAIL;
+    }
+    soft_i2c_send_byte(reg_addr);
+    if (!soft_i2c_wait_ack()) {
+        soft_i2c_stop();
+        return SOFT_I2C_FAIL;
+    }
+    soft_i2c_start();
+    soft_i2c_send_byte(slave_addr | 0x01);
+    if (!soft_i2c_wait_ack()) {
+        soft_i2c_stop();
+        return SOFT_I2C_FAIL;
+    }
+    soft_i2c_delay();
+    data[0] = soft_i2c_receive_byte(1);
+    data[1] = soft_i2c_receive_byte(0);
+    soft_i2c_stop();
+    return SOFT_I2C_OK;
+}

src/tmp112.c

@@ -9,7 +9,13 @@ uint32_t tmp112a_get_raw_channel_result(void) {
     uint8_t value[2] = {0};
 
     // ldc1612_iic_read_16bits(CONVERTION_RESULT_REG_START + channel, value);
-    i2c_read_16bits(TMP112A_ADDR, 0x00, value);
+
+#ifdef SOFTWARE_IIC
+    soft_i2c_read_16bits(TMP112A_ADDR, TMP112A_TEMP_REG, value);
+#else
+    i2c_read_16bits(TMP112A_ADDR, TMP112A_TEMP_REG, value);
+#endif
+
     raw_value = ((uint16_t) (value[0] << 4) | (value[1]>>4));
     return (raw_value * 625);
 }