rs485

# Conflicts:
#	inc/board_config.h

CMakeLists.txt

@@ -4,10 +4,12 @@ include(cmake/toolchain.cmake)
 project(xlsw_3dp_LDC1612)
 
 set(VERSION_MAJOR 0)
-set(VERSION_MINOR 0)
+set(VERSION_MINOR F)
 set(VERSION_PATCH 1)
 set(VERSION "V${VERSION_MAJOR}.${VERSION_MINOR}.${VERSION_PATCH}")
 string(TIMESTAMP CURRENT_DATE "%Y-%m-%d")
+set(IIC_TYPE "AutoDetectDriveCurrent")
+#set(IIC_TYPE "HW-IIC")
 
 enable_language(C)
 enable_language(CXX)
@@ -24,9 +26,13 @@ set(TARGET_C_SRC
         ${CMAKE_SOURCE_DIR}/src/main.c
         ${CMAKE_SOURCE_DIR}/src/gd32e23x_it.c
         ${CMAKE_SOURCE_DIR}/src/systick.c
-        ${CMAKE_SOURCE_DIR}/src/peripheral.c
-        ${CMAKE_SOURCE_DIR}/src/LDC1612.c
-        ${CMAKE_SOURCE_DIR}/src/RS485.c
+        ${CMAKE_SOURCE_DIR}/src/ldc1612.c
+        ${CMAKE_SOURCE_DIR}/src/tmp112.c
+        ${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

@@ -1,63 +1,153 @@
-# gd32e23x_template
-本项目为GD32E230Fx系列的基于Clion的CMake开发的工程模板。本人暂未入门，强行上强度，放弃keil，拥抱开源。遂尝试使用arm-none-eabi-gcc进行开发。
-有幸寻得[@mo10 ](https://github.com/mo10)大佬的帮助，本项目的基础目录架构与CMakeLists.txt与toolchain.cmake均为大佬提供。
+# XLSW-3DP-Sensor-LDC1612
 
-## 关于C标准库的printf的重写
-在Keil开发中，ARMClang有自己的microLIB，所以直接调用，然后重写fputc函数即可，但在gcc中需要重写`_write`函数，本项目模板中已经在`main.c`中完成重写。
-同时需要添加`--spaces=nano.spaces`编译参数。
-但是printf本身占用flash比较大，建议谨慎使用，尤其是本项目搭建时候采用的型号为`GD32E230F4V6`内存非常有限，重写后加上spaces设置，目前能用。
+| **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    |
 
-## 添加源文件与头文件
-在`ProjectDir/CMakeLists.txt`中21行左右，添加对应源文件即可。
+## 电涡流传感器模块通信协议
 
-```cmake
-set(TARGET_C_SRC
-        ${CMAKE_SOURCE_DIR}/src/main.c
-        ${CMAKE_SOURCE_DIR}/src/gd32e23x_it.c
-        ${CMAKE_SOURCE_DIR}/src/systick.c
-        ${CMAKE_SOURCE_DIR}/src/peripheral.c
-)
-```
-## 关于链接脚本
-注意芯片选型, 不同型号的芯片 FLASH 和 RAM 大小不同。需要修改链接脚本`ld/gd32e23x_gcc.ld`
+通信协议：[LDC1612通信协议](CommunicationProtocol.md)
 
-| 芯片型号       | FLASH | RAM |
-|------------|-------|-----|
-| GD32E230F4 | 16K   | 4K  |
-| GD32E230F8 | 64K   | 8K  |
+---
 
-```linkerscript
-/* memory map */
-MEMORY
-{
-FLASH (rx)      : ORIGIN = 0x08000000, LENGTH = 16K
-RAM (xrw)       : ORIGIN = 0x20000000, LENGTH = 4K
-}
-```
+## LDC1612寄存器配置
+### **1. 软件复位 (RESET_DEV)**
+- **寄存器地址**: 0x1C
+- **写入值**: 0x8000
+- **字段解析**：
+    - **Bit 15 (RESET_DEV)**: 写1触发硬件复位，完成后自动清零。
+    - **Bits 14-0**: 保留位，必须写0。
 
-## 关于Startup文件
+### **2. 进入休眠模式 (CONFIG)**
+- **寄存器地址**: 0x1A
+- **写入值**: 0x2801
+- **字段解析**（按位分解）：
 
-[@mo10 ](https://github.com/mo10)大佬提供的一些想法，具体如下。但是我目前还没测试到实际的影响和作用范围，所以暂未同步进来，仅作为备忘内容
-```asm
-Reset_Handler:
-    ldr   r0, =_sp
-    mov   sp, r0
-    ldr   r0, =_end
-    msr   msplim, r0
-/* copy the data segment into ram */
-    movs  r1, #0
-    b  LoopCopyDataInit
-```
+  | Bit位 | 字段名                | 值   | 功能说明                  |
+    |-------|-----------------------|-----|--------------------------|
+  | 15-14 | ACTIVE_CHAN           | 00  | 未使用（休眠模式下无效）     |
+  | 13    | SLEEP_MODE_EN         | 1   | 使能休眠模式               |
+  | 12    | RP_OVERRIDE_EN        | 0   | 禁用Rp覆盖（默认）          |
+  | 11    | SENSOR_ACTIVATE_SEL   | 0   | 全电流激活模式             |
+  | 10    | AUTO_AMP_DIS          | 0   | 启用自动幅度校正           |
+  | 9     | REF_CLK_SRC           | 0   | 使用内部时钟源             |
+  | 8     | Reserved              | 0   | 保留位                    |
+  | 7     | INTB_DIS              | 0   | 使能INTB中断              |
+  | 6     | HIGH_CURRENT_DRV      | 0   | 禁用高电流驱动模式         |
+  | 5-0   | Reserved              | 000001 | 保留位（默认值）          |
 
+### **3. 配置通道0时钟分频 (CLOCK_DIVIDERS_CH0)**
+- **寄存器地址**: 0x14
+- **写入值**: 0x1002
+- **字段解析**：
 
-## Ref
+  | 字段名             | 位域      | 值    | 功能说明                  |
+    |--------------------|-----------|-------|--------------------------|
+  | CH0_FIN_DIVIDER    | Bits 15-12 | 0x1   | 传感器分频系数=1（不分频） |
+  | Reserved           | Bits 11-10 | 0x0   | 保留位                   |
+  | CH0_FREF_DIVIDER   | Bits 9-0   | 0x002 | 参考分频系数=2，f_REF=40MHz/2=20MHz |
 
-1. 参考LD/Startup
+### **4. 设置通道0转换时间 (RCOUNT_CH0)**
+- **寄存器地址**: 0x08
+- **写入值**: 0x04D6 (十进制1238)
+- **计算公式**：
 
-[https://github.com/Noveren/gd32e23x-template/blob/main/gd32e23x/template/linker.ld](https://github.com/Noveren/gd32e23x-template/blob/main/gd32e23x/template/linker.ld)
+  \[
+  t_{C0} = \frac{(0x04D6 \times 16)}{20\text{MHz}} = 991\mu s
+  \]
 
-[https://github.com/Noveren/gd32e23x-template/blob/main/gd32e23x/template/startup.s](https://github.com/Noveren/gd32e23x-template/blob/main/gd32e23x/template/startup.s)
+### **5. 设置通道0稳定时间 (SETTLECOUNT_CH0)**
+- **寄存器地址**: 0x10
+- **写入值**: 0x000A (十进制10)
+- **计算公式**：
 
-2. 官方LD/Startup
+  \[
+  t_{S0} = \frac{(0x000A \times 16)}{20\text{MHz}} = 8\mu s
+  \]
 
-使用Embedded Builder工具生成的C标准库生成的模板
+### **6. 配置通道0驱动电流 (DRIVE_CURRENT_CH0)**
+- **寄存器地址**: 0x1E
+- **写入值**: 0x9000
+- **字段解析**：
+
+  | 字段名             | 位域      | 值    | 功能说明                  |
+    |--------------------|-----------|-------|--------------------------|
+  | CH0_IDRIVE         | Bits 15-11 | 0x12  | 驱动电流值=18（对应Rp=6.6kΩ，查表9） |
+  | CH0_INIT_IDRIVE    | Bits 10-6  | 0x00  | 初始电流值（未使用）        |
+  | Reserved           | Bits 5-0   | 0x00  | 保留位                   |
+
+### **7. 多通道扫描配置 (MUX_CONFIG)**
+- **寄存器地址**: 0x1B
+- **写入值**: 0x820C
+- **字段解析**：
+
+  | 字段名             | 位域      | 值    | 功能说明                  |
+    |--------------------|-----------|-------|--------------------------|
+  | AUTOSCAN_EN        | Bit 15    | 1     | 启用自动扫描模式           |
+  | RR_SEQUENCE        | Bits 14-13 | 00   | 扫描顺序：Ch0→Ch1          |
+  | Reserved           | Bits 12-3 | 0x020 | 保留位（默认值）           |
+  | DEGLITCH           | Bits 2-0   | 0x4   | 去抖动滤波器带宽=3.3MHz    |
+
+### **8. 退出休眠并启动转换 (CONFIG)**
+- **寄存器地址**: 0x1A
+- **写入值**: 0x1601
+- **字段解析**（关键位）：
+
+  | Bit位 | 字段名                | 值   | 功能说明                  |
+    |-------|-----------------------|-----|--------------------------|
+  | 13    | SLEEP_MODE_EN         | 0   | 退出休眠模式              |
+  | 9     | REF_CLK_SRC           | 1   | 使用外部时钟（CLKIN=40MHz）|
+  | 12    | RP_OVERRIDE_EN        | 1   | 启用Rp覆盖（固定驱动电流） |
+
+### **关键参数总结表**
+| 寄存器名             | 地址  | 写入值 | 核心功能                     |
+|----------------------|-------|--------|----------------------------|
+| RESET_DEV            | 0x1C  | 0x8000 | 强制复位设备                 |
+| CONFIG (休眠)        | 0x1A  | 0x2801 | 进入配置模式                 |
+| CLOCK_DIVIDERS_CH0   | 0x14  | 0x1002 | 通道0时钟分频设置            |
+| RCOUNT_CH0           | 0x08  | 0x04D6 | 通道0转换时间=991μs          |
+| SETTLECOUNT_CH0      | 0x10  | 0x000A | 通道0稳定时间=8μs            |
+| DRIVE_CURRENT_CH0    | 0x1E  | 0x9000 | 通道0驱动电流=18（约1.5mA）  |
+| MUX_CONFIG           | 0x1B  | 0x820C | 启用双通道扫描（Ch0→Ch1）    |
+| CONFIG (启动)        | 0x1A  | 0x1601 | 退出休眠，启用外部时钟       |
+
+通过以上配置，设备将按以下流程运行：
+1. 复位后进入休眠模式，配置寄存器。
+2. 设置通道0的时钟分频、转换时间、稳定时间和驱动电流。
+3. 启用双通道自动扫描，设置去抖动滤波器。
+4. 退出休眠模式，开始连续转换。
+
+---
+
+## **自动校准配置（可选）**
+### **适用场景**
+- Rp未知或环境变化大时，通过自动校准获取初始电流值。
+
+### **操作流程**
+1. **设置目标至最大距离**
+2. **进入休眠模式**：
+   ```c
+   write_register(0x1A, 0x2801); // SLEEP_MODE_EN=1
+   ```
+3. **启用自动校准**：
+   ```c
+   // CLOCK_DIVIDERS_CH0配置分频
+   write_register(0x14, 0x1002); // FIN_DIV=1, FREF_DIV=2
+   // 禁用Rp覆盖
+   uint16_t config = read_register(0x1A);
+   config &= ~(1 << 12); // RP_OVERRIDE_EN=0
+   write_register(0x1A, config);
+   ```
+4. **启动测量并读取初始值**：
+   ```c
+   write_register(0x1A, 0x1601); // 退出休眠
+   delay(10); // 等待至少一次转换完成
+   uint16_t init_value = (read_register(0x1E) >> 6) & 0x1F; // 读取CH0_INIT_IDRIVE
+   ```
+5. **写入驱动电流**：
+   ```c
+   uint16_t drive_current = (init_value << 11) | 0x0000;
+   write_register(0x1E, drive_current);
+   ```
+   
+---

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/LDC1612.h

@@ -1,65 +0,0 @@
-//
-// Created by dell on 24-12-3.
-//
-
-#ifndef LDC1612_H
-#define LDC1612_H
-
-#include "gd32e23x_it.h"
-#include "gd32e23x.h"
-#include "systick.h"
-#include <stdbool.h>
-#include <string.h>
-#include <stdio.h>
-#include <stdlib.h>
-
-#define LDC1612_ADDR         (0x2B << 1)
-
-/*Register Rddr*/
-/***************************************************************************/
-#define CONVERTION_RESULT_REG_START             0X00
-#define SET_CONVERSION_TIME_REG_START           0X08
-#define SET_CONVERSION_OFFSET_REG_START         0X0C
-#define SET_LC_STABILIZE_REG_START              0X10
-#define SET_FREQ_REG_START                      0X14
-
-#define SENSOR_STATUS_REG                       0X18
-#define ERROR_CONFIG_REG                        0X19
-#define SENSOR_CONFIG_REG                       0X1A
-#define MUL_CONFIG_REG                          0X1B
-#define SENSOR_RESET_REG                        0X1C
-#define SET_DRIVER_CURRENT_REG                  0X1E
-
-#define READ_MANUFACTURER_ID                    0X7E
-#define READ_DEVICE_ID                          0X7F
-
-/******************************************************************************/
-
-
-typedef enum {
-    I2C_START = 0,
-    I2C_SEND_ADDRESS,
-    I2C_CLEAR_ADDRESS_FLAG,
-    I2C_TRANSMIT_DATA,
-    I2C_STOP
-} i2c_process_enum;
-
-#define I2C_SPEED 100000
-#define RCU_IR_GPIO 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)
-
-void I2C_config(void);
-void I2C_scan(void);
-
-int LDC1612_IIC_read_16bits(void);
-
-
-
-#endif //LDC1612_H

inc/RS485.h

@@ -1,31 +0,0 @@
-//
-// Created by dell on 24-12-3.
-//
-
-#ifndef RS485_H
-#define RS485_H
-
-#include "gd32e23x_it.h"
-#include "gd32e23x.h"
-#include "systick.h"
-#include <stdbool.h>
-#include <string.h>
-#include <stdio.h>
-#include <stdlib.h>
-
-#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 RX_BUFFER_SIZE 64
-
-void RS485_config(void);
-void process_command(char *cmd);
-
-#endif //RS485_H

inc/board_config.h

@@ -0,0 +1,48 @@
+//
+// Created by dell on 24-12-28.
+//
+
+#ifndef BOARD_CONFIG_H
+#define BOARD_CONFIG_H
+
+#define SOFTWARE_IIC
+
+// #define DEBUG_VERBOES
+
+#define RS485_MAX13487
+
+// #define DEBUG_VOFA_TOOL
+
+/******************************************************************************/
+
+#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

@@ -0,0 +1,53 @@
+//
+// Created by dell on 24-12-20.
+//
+
+#ifndef I2C_H
+#define I2C_H
+
+#include "gd32e23x_it.h"
+#include "gd32e23x.h"
+#include "systick.h"
+#include "main.h"
+#include <stdbool.h>
+#include <string.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <math.h>
+
+#include "board_config.h"
+
+/******************************************************************************/
+
+#define I2C_SPEED       20000
+
+#define I2C_TIME_OUT    (uint16_t)(5000)
+#define I2C_OK          1
+#define I2C_FAIL        0
+#define I2C_END         1
+
+/******************************************************************************/
+
+typedef enum {
+    I2C_START = 0,
+    I2C_SEND_ADDRESS,
+    I2C_CLEAR_ADDRESS_FLAG,
+    I2C_TRANSMIT_DATA,
+    I2C_STOP
+} i2c_process_enum;
+
+/******************************************************************************/
+
+void i2c_gpio_config(void);
+
+void i2c_config(void);
+
+void i2c_bus_reset(void);
+
+void i2c_scan(void);
+
+uint8_t i2c_write_16bits(uint8_t slave_addr, uint8_t reg_addr, uint8_t data[2]);
+
+uint8_t i2c_read_16bits(uint8_t slave_addr, uint8_t reg_addr, uint8_t *data);
+
+#endif //I2C_H

inc/ldc1612.h

@@ -0,0 +1,101 @@
+//
+// Created by dell on 24-12-3.
+//
+
+#ifndef LDC1612_H
+#define LDC1612_H
+
+#include "gd32e23x_it.h"
+#include "gd32e23x.h"
+#include "systick.h"
+#include <stdbool.h>
+#include <string.h>
+#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*/
+/***************************************************************************/
+
+#define CONVERTION_RESULT_REG_START             0X00
+#define SET_CONVERSION_TIME_REG_START           0X08
+#define SET_CONVERSION_OFFSET_REG_START         0X0C
+#define SET_LC_STABILIZE_REG_START              0X10
+#define SET_FREQ_REG_START                      0X14
+
+#define SENSOR_STATUS_REG                       0X18
+#define ERROR_CONFIG_REG                        0X19
+#define SENSOR_CONFIG_REG                       0X1A
+#define MUL_CONFIG_REG                          0X1B
+#define SENSOR_RESET_REG                        0X1C
+#define SET_DRIVER_CURRENT_REG                  0X1E
+
+#define READ_MANUFACTURER_ID                    0X7E
+#define READ_DEVICE_ID                          0X7F
+
+/******************************************************************************/
+
+#define CHANNEL_0  0
+#define CHANNEL_1  1
+
+/******************************************************************************/
+
+#define LDC1612_CONVERSION_TIME_CH0        0x0546  //0536
+#define LDC1612_DRIVE_CURRENT              0x9000  //A000
+#define LDC1612_MUX_CONFIG                 0x020C  // no auto scan and filter bandwidth 3.3MHz
+#define LDC1612_SENSOR_CONFIG              0x1601
+#define LDC1612_SLEEP_MODE                 0x2801
+#define LDC1612_ERROR_CONFIG               0x0000
+#define LC_STABILIZE_TIME_CH0              0x001E //30
+#define LDC1612_RESET_DEV                  0x8000 //[15:0] 0b1000 0000 0000 0000
+
+/******************************************************************************/
+
+#define COIL_RP_KOM              7.2
+#define COIL_L_UH                33
+#define COIL_C_PF                150
+#define COIL_Q_FACTOR            35.97
+#define COIL_FREQ_HZ             2262000
+
+/******************************************************************************/
+
+void ldc1612_set_conversion_time(uint8_t channel, uint16_t result);
+
+void ldc1612_set_conversion_offset(uint8_t channel, uint16_t result);
+
+void ldc1612_set_LC_stabilize_time(uint8_t channel, uint16_t result);
+
+void ldc1612_set_freq_divide(uint8_t channel);
+
+void ldc1612_set_error_config(uint16_t value);
+
+void ldc1612_set_mux_config(uint16_t value);
+
+void ldc1612_reset_sensor(void);
+
+void ldc1612_set_drive_current(uint8_t channel, uint16_t value);
+
+void ldc1612_set_sensor_config(uint16_t value);
+
+void ldc1612_single_ch0_config(void);
+
+void ldc1612_iic_get_sensor_infomation(void);
+
+uint16_t ldc1612_get_manufacturer_id(void);
+
+uint16_t ldc1612_get_deveice_id(void);
+
+uint32_t ldc1612_get_raw_channel_result(uint8_t channel);
+
+uint32_t ldc1612_parse_raw_result(uint32_t raw_result);
+
+void ldc1612_drvie_current_detect(uint8_t channel);
+
+#endif //LDC1612_H

inc/led.h

@@ -0,0 +1,13 @@
+//
+// Created by dell on 24-12-20.
+//
+
+#ifndef LED_H
+#define LED_H
+
+#include "gd32e23x_it.h"
+#include "board_config.h"
+
+void led_config(void);
+
+#endif //LED_H

inc/main.h

@@ -35,15 +35,20 @@ OF SUCH DAMAGE.
 #ifndef MAIN_H
 #define MAIN_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
+#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 led_config(void);
-void iicSendData(void);
-void iicReceiveData(void);
+#ifdef SOFTWARE_IIC
+#include "soft_i2c.h"
+#else
+#include "i2c.h"
+#endif
 
 #endif /* MAIN_H */

inc/peripheral.h

@@ -1,11 +0,0 @@
-//
-// Created by yelv1 on 24-9-22.
-//
-
-#ifndef PERIPHERAL_H
-#define PERIPHERAL_H
-
-void usart_config(void);
-void led_blink_config(void);
-
-#endif //PERIPHERAL_H

inc/rs485.h

@@ -0,0 +1,56 @@
+//
+// Created by dell on 24-12-3.
+//
+
+#ifndef RS485_H
+#define RS485_H
+
+#include "gd32e23x_it.h"
+#include "gd32e23x.h"
+#include "systick.h"
+#include <stdio.h>
+#include "ldc1612.h"
+#include "tmp112.h"
+#include "fwdgt.h"
+#include "board_config.h"
+
+/******************************************************************************/
+
+#define RX_BUFFER_SIZE            32
+
+#define PROTOCOL_PACKAGE_HEADER   0xD5
+#define PROTOCOL_BOARD_TYPE       0x03
+#define PROTOCOL_PACKAGE_LENGTH   0x02
+
+/******************************************************************************/
+
+typedef enum
+{
+    VALIDATION_SUCCESS = 0,
+    VALIDATION_CRC_ERROR = 1,
+    VALIDATION_HEADER_ERROR = 2,
+    VALIDATION_TYPE_ERROR = 4,
+    VALIDATION_LENGTH_ERROR = 8
+} validation_result_t;
+
+/******************************************************************************/
+
+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

@@ -0,0 +1,29 @@
+//
+// Created by dell on 24-12-20.
+//
+
+#ifndef TMP112_H
+#define TMP112_H
+
+#include "gd32e23x_it.h"
+#include "gd32e23x.h"
+
+#include "board_config.h"
+
+#ifdef SOFTWARE_IIC
+#include "soft_i2c.h"
+#else
+#include "i2c.h"
+#endif
+
+/******************************************************************************/
+
+#define TMP112A_ADDR         (0x49 << 1)
+
+/******************************************************************************/
+
+#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/LDC1612.c

@@ -1,201 +0,0 @@
-//
-// Created by dell on 24-12-3.
-//
-
-#include "LDC1612.h"
-
-
-
-void I2C_config(void) {
-    rcu_periph_clock_enable(RCU_IR_GPIO);
-    rcu_periph_clock_enable(RCU_I2C);
-
-    gpio_af_set(I2C_SCL_PORT, I2C_GPIO_AF, I2C_SCL_PIN);
-    gpio_af_set(I2C_SDA_PORT, I2C_GPIO_AF, I2C_SDA_PIN);
-
-    gpio_mode_set(I2C_SCL_PORT, GPIO_MODE_AF, 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_AF, GPIO_PUPD_PULLUP, I2C_SDA_PIN);
-    gpio_output_options_set(I2C_SDA_PORT, GPIO_OTYPE_OD, GPIO_OSPEED_50MHZ, I2C_SDA_PIN);
-
-    i2c_clock_config(I2C0, I2C_SPEED, I2C_DTCY_2);
-
-    // i2c_mode_addr_config(I2C0, I2C_I2CMODE_ENABLE, I2C_ADDFORMAT_7BITS, LDC1612_ADDR);
-    i2c_enable(I2C0);
-    i2c_ack_config(I2C0, I2C_ACK_ENABLE);
-}
-
-// void LDC1612_Init(void) {
-//     uint8_t RCOUNT0_ALL[3]={SET_CONVERSION_TIME_REG_START,0x05,0x36};//csdn
-//     uint8_t SETTLECOUNT0_ALL[3]={SET_LC_STABILIZE_REG_START,0x00,0x0a};
-//     uint8_t CLOCK_DIVIDERS0_ALL[3]={SET_FREQ_REG_START,0x10,0x02};
-//     uint8_t ERROR_CONFIG_ALL[3]={ERROR_CONFIG_REG,0x00,0x00};
-//     uint8_t MUX_CONFIG_ALL[3]={MUL_CONFIG_REG,0x82,0x0c};
-//     uint8_t DRIVE_CURRENT0_ALL[3]={SET_DRIVER_CURRENT_REG,0x90,0x00};
-//     uint8_t CONFIG_ALL[3]={SENSOR_CONFIG_REG,0x14,0x01};//csdn
-//
-// }
-
-/**
- * @brief 扫描I2C总线，查找连接的设备
- *
- * 该函数会扫描I2C总线上的所有地址（1到126），并尝试与每个地址进行通信。
- * 如果在某个地址上发现了设备，则会打印出该设备的地址。
- * 最后会打印出找到的设备总数。
- */
-void I2C_scan(void) {
-    uint32_t timeout;
-    uint8_t address;
-    int found_devices = 0;
-
-    printf("Scanning I2C bus...\r\n");
-
-    for (address = 1; address < 127; address++) {
-        timeout = 0;
-
-        // 生成起始条件
-        while (i2c_flag_get(I2C0, I2C_FLAG_I2CBSY) && (timeout < I2C_TIME_OUT))
-            timeout++;
-        if (timeout >= I2C_TIME_OUT) {
-            continue; // 超时，跳过该地址
-        }
-        i2c_start_on_bus(I2C0);
-        timeout = 0;
-
-        // 等待起始条件发送完成
-        while (!i2c_flag_get(I2C0, I2C_FLAG_SBSEND) && (timeout < I2C_TIME_OUT))
-            timeout++;
-        if (timeout >= I2C_TIME_OUT) {
-            continue; // 超时，跳过该地址
-        }
-        i2c_master_addressing(I2C0, (address << 1), I2C_TRANSMITTER);
-        timeout = 0;
-
-        // 等待地址发送完成
-        while (!i2c_flag_get(I2C0, I2C_FLAG_ADDSEND) && (timeout < I2C_TIME_OUT))
-            timeout++;
-        if (timeout < I2C_TIME_OUT) {
-            i2c_flag_clear(I2C0, I2C_FLAG_ADDSEND);
-            printf("Found device at 0x%02X\r\n", address);
-            found_devices++;
-        }
-
-        // 生成停止条件
-        i2c_stop_on_bus(I2C0);
-
-        timeout = 0;
-
-        while (i2c_flag_get(I2C0, I2C_FLAG_STPDET) && (timeout < I2C_TIME_OUT))
-            timeout++;
-    }
-
-    if (found_devices == 0) {
-        printf("No I2C devices found.\r\n");
-    } else {
-        printf("Total %d I2C devices found.\r\n", found_devices);
-    }
-}
-
-int LDC1612_IIC_read_16bits(void) {
-    uint8_t data[2] = {0};
-    uint16_t raw_temp = 0;
-    uint16_t timeout = 0;
-
-    i2c_ack_config(I2C0, I2C_ACK_ENABLE);
-
-    while (i2c_flag_get(I2C0, I2C_FLAG_I2CBSY) && (timeout < I2C_TIME_OUT)) //判断IIC总线是否忙，发送起始信号
-        timeout++;
-    if (timeout < I2C_TIME_OUT) {
-        i2c_start_on_bus(I2C0);
-        timeout = 0;
-    } else {
-        printf("err\r\n");
-        return -1; // 超时返回错误
-    }
-
-    while (!i2c_flag_get(I2C0, I2C_FLAG_SBSEND) && (timeout < I2C_TIME_OUT)) //判断起始位是否发送，设置sensor地址并设置为写
-        timeout++;
-    if (timeout < I2C_TIME_OUT) {
-        i2c_master_addressing(I2C0, LDC1612_ADDR, I2C_TRANSMITTER);
-        timeout = 0;
-    } else {
-        return -2; // 超时返回错误
-    }
-
-    while (!i2c_flag_get(I2C0, I2C_FLAG_ADDSEND) && (timeout < I2C_TIME_OUT))
-        timeout++;
-    if (timeout < I2C_TIME_OUT) {
-        i2c_flag_clear(I2C0, I2C_FLAG_ADDSEND);
-        timeout = 0;
-    } else {
-        return -3; // 超时返回错误
-    }
-
-    while (!i2c_flag_get(I2C0, I2C_FLAG_TBE) && (timeout < I2C_TIME_OUT)) //判断地址是否发送完成，然后发送寄存器地址
-        timeout++;
-    if (timeout < I2C_TIME_OUT) {
-        i2c_data_transmit(I2C0, READ_DEVICE_ID);
-        timeout = 0;
-        // i2c_start_on_bus(I2C0);
-    } else {
-        return -4; // 超时返回错误
-    }
-
-    while (i2c_flag_get(I2C0, I2C_FLAG_BTC) && (timeout < I2C_TIME_OUT)) //判断发送缓冲器是否为空，为空后（发送完毕）重新发送开始信号
-        timeout++;
-    if (timeout < I2C_TIME_OUT) {
-        i2c_start_on_bus(I2C0);
-        timeout = 0;
-    } else {
-        return -5; // 超时返回错误
-    }
-
-    while (!i2c_flag_get(I2C0, I2C_FLAG_SBSEND) && (timeout < I2C_TIME_OUT)) {
-        timeout++;
-    }
-    if (timeout < I2C_TIME_OUT) {
-        i2c_master_addressing(I2C0, LDC1612_ADDR, I2C_RECEIVER);
-        timeout = 0;
-    } else {
-        return -6; // 超时返回错误
-    }
-
-    while (!i2c_flag_get(I2C0, I2C_FLAG_ADDSEND) && (timeout < I2C_TIME_OUT))
-        timeout++;
-    if (timeout < I2C_TIME_OUT) {
-        i2c_flag_clear(I2C0, I2C_FLAG_ADDSEND);
-        timeout = 0;
-    } else {
-        return -7; // 超时返回错误
-    }
-
-    // 读取第一个字节的数据
-    while (!i2c_flag_get(I2C0, I2C_FLAG_RBNE) && (timeout < I2C_TIME_OUT)) {
-        timeout++;
-    }
-    if (timeout < I2C_TIME_OUT) {
-        data[0] = i2c_data_receive(I2C0);
-        timeout = 0;
-    } else {
-        return -8; // 超时返回错误
-    }
-
-    // i2c_ack_config(I2C0, I2C_ACK_DISABLE); // 关闭发送ACK，它会在下一个字节完成后发送NAK
-
-    // 读取第二个字节的数据
-    while (!i2c_flag_get(I2C0, I2C_FLAG_RBNE) && (timeout < I2C_TIME_OUT)) {
-        timeout++;
-    }
-    if (timeout < I2C_TIME_OUT) {
-        data[1] = i2c_data_receive(I2C0);
-        timeout = 0;
-    } else {
-        return -9; // 超时返回错误
-    }
-
-    i2c_stop_on_bus(I2C0);
-
-    printf("device id = %x\r\n", (data[0] <<8 | data[1]));
-    return 0;
-}

src/RS485.c

@@ -1,50 +0,0 @@
-//
-// Created by dell on 24-12-3.
-//
-
-#include "RS485.h"
-
-void RS485_config(void) {
-    rcu_periph_clock_enable(RS485_GPIO_RCU);
-    rcu_periph_clock_enable(RS485_RCU);
-
-    gpio_af_set(RS485_GPIO_PORT, GPIO_AF_1, GPIO_PIN_2 | GPIO_PIN_3);
-
-    /* configure USART Tx&Rx as alternate function push-pull */
-    gpio_mode_set(RS485_GPIO_PORT, GPIO_MODE_AF, GPIO_PUPD_PULLUP, RS485_TX_PIN | RS485_RX_PIN);
-    gpio_output_options_set(RS485_GPIO_PORT, GPIO_OTYPE_PP, GPIO_OSPEED_10MHZ, RS485_TX_PIN | RS485_RX_PIN);
-
-    /* configure RS485 EN Pin */
-    gpio_mode_set(RS485_GPIO_PORT, GPIO_MODE_OUTPUT, GPIO_PUPD_NONE, RS485_EN_PIN);
-    gpio_output_options_set(RS485_GPIO_PORT, GPIO_OTYPE_PP, GPIO_OSPEED_50MHZ, RS485_EN_PIN);
-    gpio_bit_write(RS485_GPIO_PORT, RS485_EN_PIN, SET);
-
-    /* USART configure */
-    usart_deinit(RS485_PHY);
-    usart_baudrate_set(RS485_PHY, RS485_BAUDRATE);
-    usart_receive_config(RS485_PHY, USART_RECEIVE_ENABLE);
-    usart_transmit_config(RS485_PHY, USART_TRANSMIT_ENABLE);
-
-    usart_enable(RS485_PHY);
-
-    nvic_irq_enable(USART0_IRQn, 0);
-    usart_interrupt_enable(RS485_PHY, USART_INT_RBNE);
-}
-
-void process_command(char *cmd) {
-    if (strncmp(cmd, "M1", 2) == 0) {
-        printf("M1 -=-=- OK!\r\n");
-    } else if (strncmp(cmd, "M2", 2) == 0) {
-        printf("M2 -=-=- OK!\r\n");
-        // } else if (strncmp(cmd, "M3", 2) == 0) {
-        //     char *param_str = cmd + 2; // Skip "M3"
-        //     int param = atoi(param_str + 1); // Skip "S" and convert to integer
-        //     if (param >= 0 && param <= 100) {
-        //         printf("M3 with parameter %d -=-=- OK!\r\n", param);
-        //     } else {
-        //         printf("Invalid parameter for M3 command!\r\n");
-        //     }
-    } else {
-        printf("Invalid Command!\r\n");
-    }
-}

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

@@ -35,7 +35,9 @@ OF SUCH DAMAGE.
 #include "gd32e23x_it.h"
 #include "main.h"
 #include "systick.h"
-#include "LDC1612.h"
+#include "ldc1612.h"
+#include "rs485.h"
+#include "led.h"
 
 /*!
     \brief      this function handles NMI exception
@@ -43,10 +45,9 @@ OF SUCH DAMAGE.
     \param[out] none
     \retval     none
 */
-void NMI_Handler(void)
-{
+void NMI_Handler(void) {
     /* if NMI exception occurs, go to infinite loop */
-    while(1) {
+    while (1) {
     }
 }
 
@@ -56,10 +57,9 @@ void NMI_Handler(void)
     \param[out] none
     \retval     none
 */
-void HardFault_Handler(void)
-{
+void HardFault_Handler(void) {
     /* if Hard Fault exception occurs, go to infinite loop */
-    while(1) {
+    while (1) {
     }
 }
 
@@ -69,10 +69,9 @@ void HardFault_Handler(void)
     \param[out] none
     \retval     none
 */
-void SVC_Handler(void)
-{
+void SVC_Handler(void) {
     /* if SVC exception occurs, go to infinite loop */
-    while(1) {
+    while (1) {
     }
 }
 
@@ -82,10 +81,9 @@ void SVC_Handler(void)
     \param[out] none
     \retval     none
 */
-void PendSV_Handler(void)
-{
+void PendSV_Handler(void) {
     /* if PendSV exception occurs, go to infinite loop */
-    while(1) {
+    while (1) {
     }
 }
 
@@ -95,8 +93,7 @@ void PendSV_Handler(void)
     \param[out] none
     \retval     none
 */
-void SysTick_Handler(void)
-{
+void SysTick_Handler(void) {
 }
 
 /**
@@ -106,18 +103,40 @@ void SysTick_Handler(void)
   * @retval None
   */
 void TIMER16_IRQHandler(void) {
-    if (timer_interrupt_flag_get(LED_TIMER, TIMER_INT_FLAG_UP) == SET)
-    {
-        timer_interrupt_flag_clear(LED_TIMER, TIMER_INT_FLAG_UP);
+    if (timer_interrupt_flag_get(LED_BLINK_TIMER, TIMER_INT_FLAG_UP) == SET) {
+        timer_interrupt_flag_clear(LED_BLINK_TIMER, TIMER_INT_FLAG_UP);
         static uint8_t led_status = 0;
-        if (led_status)
-        {
+        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;
     }
-}
+}
+
+void USART0_IRQHandler(void) {
+    static uint8_t rx_index = 0;
+    static uint8_t rx_buffer[RX_BUFFER_SIZE];
+
+    if (RESET != usart_interrupt_flag_get(USART0, USART_INT_FLAG_RBNE)) {
+        usart_interrupt_flag_clear(USART0, USART_INT_FLAG_RBNE);
+        uint8_t received_data = (uint8_t) usart_data_receive(USART0);
+
+        // 将接收到的数据存储到缓冲区
+        if (rx_index < RX_BUFFER_SIZE - 1) {
+            rx_buffer[rx_index++] = received_data;
+        }
+    }
+
+    if (RESET != usart_interrupt_flag_get(USART0, USART_INT_FLAG_IDLE)) {
+        usart_interrupt_flag_clear(USART0, USART_INT_FLAG_IDLE);
+
+        process_command(rx_buffer, rx_index); // 处理指令
+
+        rx_index = 0; // 重置缓冲区索引
+        return;
+    }
+}

src/i2c.c

@@ -0,0 +1,476 @@
+//
+// Created by dell on 24-12-20.
+//
+
+#include "i2c.h"
+
+/*!
+    \brief      configure the GPIO ports
+    \param[in]  none
+    \param[out] none
+    \retval     none
+*/
+void i2c_gpio_config(void) {
+    /* enable IIC GPIO clock */
+    rcu_periph_clock_enable(RCU_GPIO_I2C);
+
+    /* connect I2C_SCL_PIN to I2C_SCL */
+    gpio_af_set(I2C_SCL_PORT, I2C_GPIO_AF, I2C_SCL_PIN);
+    /* connect I2C_SDA_PIN to I2C_SDA */
+    gpio_af_set(I2C_SDA_PORT, I2C_GPIO_AF, I2C_SDA_PIN);
+    /* configure GPIO pins of I2C */
+    gpio_mode_set(I2C_SCL_PORT, GPIO_MODE_AF, 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_AF, GPIO_PUPD_PULLUP, I2C_SDA_PIN);
+    gpio_output_options_set(I2C_SDA_PORT, GPIO_OTYPE_OD, GPIO_OSPEED_50MHZ, I2C_SDA_PIN);
+}
+
+/*!
+    \brief      configure the I2CX interface
+    \param[in]  none
+    \param[out] none
+    \retval     none
+*/
+void i2c_config(void) {
+    /* configure I2C GPIO */
+    i2c_gpio_config();
+    /* enable I2C clock */
+    rcu_periph_clock_enable(RCU_I2C);
+    /* configure I2C clock */
+    i2c_clock_config(I2C0, I2C_SPEED, I2C_DTCY_2);
+    /* configure I2C address */
+    i2c_mode_addr_config(I2C0, I2C_I2CMODE_ENABLE, I2C_ADDFORMAT_7BITS, 0xA0);
+    /* enable I2CX */
+    i2c_enable(I2C0);
+    /* enable acknowledge */
+    i2c_ack_config(I2C0, I2C_ACK_ENABLE);
+}
+
+/*!
+    \brief      reset I2C bus
+    \param[in]  none
+    \param[out] none
+    \retval     none
+*/
+void i2c_bus_reset(void) {
+    i2c_deinit(I2C0);
+    /* configure SDA/SCL for GPIO */
+    GPIO_BC(I2C_SCL_PORT) |= I2C_SCL_PIN;
+    GPIO_BC(I2C_SDA_PORT) |= I2C_SDA_PIN;
+    gpio_output_options_set(I2C_SCL_PORT, GPIO_OTYPE_PP, GPIO_OSPEED_50MHZ, I2C_SCL_PIN);
+    gpio_output_options_set(I2C_SDA_PORT, GPIO_OTYPE_PP, GPIO_OSPEED_50MHZ, I2C_SDA_PIN);
+    __NOP();
+    __NOP();
+    __NOP();
+    __NOP();
+    __NOP();
+    GPIO_BOP(I2C_SCL_PORT) |= I2C_SCL_PIN;
+    __NOP();
+    __NOP();
+    __NOP();
+    __NOP();
+    __NOP();
+    GPIO_BOP(I2C_SDA_PORT) |= I2C_SDA_PIN;
+    /* connect I2C_SCL_PIN to I2C_SCL */
+    /* connect I2C_SDA_PIN to I2C_SDA */
+    gpio_output_options_set(I2C_SCL_PORT, GPIO_OTYPE_OD, GPIO_OSPEED_50MHZ, I2C_SCL_PIN);
+    gpio_output_options_set(I2C_SDA_PORT, GPIO_OTYPE_OD, GPIO_OSPEED_50MHZ, I2C_SDA_PIN);
+    /* configure the I2CX interface */
+    i2c_config();
+}
+
+/**
+ * @brief 扫描I2C总线，查找连接的设备
+ *
+ * 该函数会扫描I2C总线上的所有地址（1到126），并尝试与每个地址进行通信。
+ * 如果在某个地址上发现了设备，则会打印出该设备的地址。
+ * 最后会打印出找到的设备总数。
+ */
+void i2c_scan(void) {
+    uint32_t timeout;
+    uint8_t address;
+    int found_devices = 0;
+
+    printf("Scanning I2C bus...\r\n");
+
+    for (address = 1; address < 127; address++) {
+        timeout = 0;
+
+        // 生成起始条件
+        while (i2c_flag_get(I2C0, I2C_FLAG_I2CBSY) && (timeout < I2C_TIME_OUT))
+            timeout++;
+        if (timeout >= I2C_TIME_OUT) {
+            continue; // 超时，跳过该地址
+        }
+        i2c_start_on_bus(I2C0);
+        timeout = 0;
+
+        // 等待起始条件发送完成
+        while (!i2c_flag_get(I2C0, I2C_FLAG_SBSEND) && (timeout < I2C_TIME_OUT))
+            timeout++;
+        if (timeout >= I2C_TIME_OUT) {
+            continue; // 超时，跳过该地址
+        }
+        i2c_master_addressing(I2C0, (address << 1), I2C_TRANSMITTER);
+        timeout = 0;
+
+        // 等待地址发送完成
+        while (!i2c_flag_get(I2C0, I2C_FLAG_ADDSEND) && (timeout < I2C_TIME_OUT))
+            timeout++;
+        if (timeout < I2C_TIME_OUT) {
+            i2c_flag_clear(I2C0, I2C_FLAG_ADDSEND);
+            printf("Found device at 0x%02X\r\n", address);
+            found_devices++;
+        }
+
+        // 生成停止条件
+        i2c_stop_on_bus(I2C0);
+
+        timeout = 0;
+
+        while (i2c_flag_get(I2C0, I2C_FLAG_STPDET) && (timeout < I2C_TIME_OUT))
+            timeout++;
+    }
+
+    if (found_devices == 0) {
+        printf("No I2C devices found.\r\n");
+    } else {
+        printf("Total %d I2C devices found.\r\n", found_devices);
+    }
+}
+
+uint8_t i2c_write_16bits(uint8_t slave_addr, uint8_t reg_addr, uint8_t data[2]) {
+    uint8_t state = I2C_START;
+    uint16_t timeout = 0;
+    uint8_t i2c_timeout_flag = 0;
+
+    /* enable acknowledge */
+    i2c_ack_config(I2C0, I2C_ACK_ENABLE);
+    while (!(i2c_timeout_flag)) {
+        switch (state) {
+            case I2C_START:
+                /* i2c master sends start signal only when the bus is idle */
+                while (i2c_flag_get(I2C0, I2C_FLAG_I2CBSY) && (timeout < I2C_TIME_OUT)) {
+                    timeout++;
+                }
+                if (timeout < I2C_TIME_OUT) {
+                    i2c_start_on_bus(I2C0);
+                    timeout = 0;
+                    state = I2C_SEND_ADDRESS;
+                } else {
+                    timeout = 0;
+                    state = I2C_START;
+#ifdef DEBUG_VERBOES
+                    printf("i2c bus is busy in WRITE BYTE!\n");
+#endif
+                }
+                break;
+            case I2C_SEND_ADDRESS:
+                /* i2c master sends START signal successfully */
+                while ((!i2c_flag_get(I2C0, I2C_FLAG_SBSEND)) && (timeout < I2C_TIME_OUT)) {
+                    timeout++;
+                }
+                if (timeout < I2C_TIME_OUT) {
+                    i2c_master_addressing(I2C0, slave_addr, I2C_TRANSMITTER);
+                    timeout = 0;
+                    state = I2C_CLEAR_ADDRESS_FLAG;
+                } else {
+                    timeout = 0;
+                    state = I2C_START;
+#ifdef DEBUG_VERBOES
+                    printf("i2c master sends start signal timeout in WRITE BYTE!\n");
+#endif
+                }
+                break;
+            case I2C_CLEAR_ADDRESS_FLAG:
+                /* address flag set means i2c slave sends ACK */
+                while ((!i2c_flag_get(I2C0, I2C_FLAG_ADDSEND)) && (timeout < I2C_TIME_OUT)) {
+                    timeout++;
+                }
+                if (timeout < I2C_TIME_OUT) {
+                    i2c_flag_clear(I2C0, I2C_FLAG_ADDSEND);
+                    timeout = 0;
+                    state = I2C_TRANSMIT_DATA;
+                } else {
+                    timeout = 0;
+                    state = I2C_START;
+#ifdef DEBUG_VERBOES
+                    printf("i2c master clears address flag timeout in WRITE BYTE!\n");
+#endif
+                }
+                break;
+            case I2C_TRANSMIT_DATA:
+                /* wait until the transmit data buffer is empty */
+                while ((!i2c_flag_get(I2C0, I2C_FLAG_TBE)) && (timeout < I2C_TIME_OUT)) {
+                    timeout++;
+                }
+                if (timeout < I2C_TIME_OUT) {
+                    /* send IIC register address */
+                    i2c_data_transmit(I2C0, reg_addr);
+                    timeout = 0;
+                } else {
+                    timeout = 0;
+                    state = I2C_START;
+#ifdef DEBUG_VERBOES
+                    printf("i2c master sends data timeout in WRITE BYTE!\n");
+#endif
+                }
+
+            /* wait until BTC bit is set */
+                while ((!i2c_flag_get(I2C0, I2C_FLAG_BTC)) && (timeout < I2C_TIME_OUT)) {
+                    timeout++;
+                }
+                if (timeout < I2C_TIME_OUT) {
+                    /* send register MSB value */
+                    i2c_data_transmit(I2C0, data[0]);
+                    timeout = 0;
+                } else {
+                    timeout = 0;
+                    state = I2C_START;
+#ifdef DEBUG_VERBOES
+                    printf("i2c master sends MSB data timeout in WRITE BYTE!\n");
+#endif
+                }
+
+            /* wait until BTC bit is set */
+                while ((!i2c_flag_get(I2C0, I2C_FLAG_BTC)) && (timeout < I2C_TIME_OUT)) {
+                    timeout++;
+                }
+                if (timeout < I2C_TIME_OUT) {
+                    /* send register LSB value */
+                    i2c_data_transmit(I2C0, data[1]);
+                    timeout = 0;
+                    state = I2C_STOP;
+                } else {
+                    timeout = 0;
+                    state = I2C_START;
+#ifdef DEBUG_VERBOES
+                    printf("i2c master sends LSB data timeout in WRITE BYTE!\n");
+#endif
+                }
+
+            /* wait until BTC bit is set */
+                while ((!i2c_flag_get(I2C0, I2C_FLAG_BTC)) && (timeout < I2C_TIME_OUT)) {
+                    timeout++;
+                }
+                if (timeout < I2C_TIME_OUT) {
+                    state = I2C_STOP;
+                    timeout = 0;
+                } else {
+                    timeout = 0;
+                    state = I2C_START;
+#ifdef DEBUG_VERBOES
+                    printf("i2c master sends data timeout in WRITE BYTE!\n");
+#endif
+                }
+                break;
+            case I2C_STOP:
+                /* send a stop condition to I2C bus */
+                i2c_stop_on_bus(I2C0);
+            /* i2c master sends STOP signal successfully */
+                while ((I2C_CTL0(I2C0) & I2C_CTL0_STOP) && (timeout < I2C_TIME_OUT)) {
+                    timeout++;
+                }
+                if (timeout < I2C_TIME_OUT) {
+                    timeout = 0;
+                    state = I2C_END;
+                    i2c_timeout_flag = I2C_OK;
+                } else {
+                    timeout = 0;
+                    state = I2C_START;
+#ifdef DEBUG_VERBOES
+                    printf("i2c master sends stop signal timeout in WRITE BYTE!\n");
+#endif
+                }
+                break;
+            default:
+                state = I2C_START;
+                i2c_timeout_flag = I2C_OK;
+                timeout = 0;
+#ifdef DEBUG_VERBOES
+                printf("i2c master sends start signal in WRITE BYTE.\n");
+#endif
+                break;
+        }
+    }
+    return I2C_END;
+}
+
+uint8_t i2c_read_16bits(uint8_t slave_addr, uint8_t reg_addr, uint8_t *data) {
+    uint8_t state = I2C_START;
+    uint8_t read_cycle = 0;
+    uint16_t timeout = 0;
+    uint8_t i2c_timeout_flag = 0;
+    uint8_t number_of_byte = 2;
+
+    /* enable acknowledge */
+    i2c_ack_config(I2C0, I2C_ACK_ENABLE);
+
+    while (!(i2c_timeout_flag)) {
+        switch (state) {
+            case I2C_START:
+                if (RESET == read_cycle) {
+                    /* i2c master sends start signal only when the bus is idle */
+                    while (i2c_flag_get(I2C0, I2C_FLAG_I2CBSY) && (timeout < I2C_TIME_OUT)) {
+                        timeout++;
+                    }
+                    if (timeout < I2C_TIME_OUT) {
+                        /* whether to send ACK or not for the next byte */
+                        i2c_ackpos_config(I2C0, I2C_ACKPOS_NEXT);
+                    } else {
+                        // i2c_bus_reset();
+                        timeout = 0;
+                        state = I2C_START;
+#ifdef DEBUG_VERBOES
+                        printf("i2c bus is busy in READ!\n");
+#endif
+                    }
+                }
+            /* send the start signal */
+                i2c_start_on_bus(I2C0);
+                timeout = 0;
+                state = I2C_SEND_ADDRESS;
+                break;
+            case I2C_SEND_ADDRESS:
+                /* i2c master sends START signal successfully */
+                while ((!i2c_flag_get(I2C0, I2C_FLAG_SBSEND)) && (timeout < I2C_TIME_OUT)) {
+                    timeout++;
+                }
+                if (timeout < I2C_TIME_OUT) {
+                    if (RESET == read_cycle) {
+                        i2c_master_addressing(I2C0, slave_addr, I2C_TRANSMITTER);
+                        state = I2C_CLEAR_ADDRESS_FLAG;
+                    } else {
+                        i2c_master_addressing(I2C0, slave_addr, I2C_RECEIVER);
+                        i2c_ack_config(I2C0, I2C_ACK_DISABLE);
+                        state = I2C_CLEAR_ADDRESS_FLAG;
+                    }
+                    timeout = 0;
+                } else {
+                    timeout = 0;
+                    state = I2C_START;
+                    read_cycle = RESET;
+#ifdef DEBUG_VERBOES
+                    printf("i2c master sends start signal timeout in READ!\n");
+#endif
+                }
+                break;
+            case I2C_CLEAR_ADDRESS_FLAG:
+                /* address flag set means i2c slave sends ACK */
+                while ((!i2c_flag_get(I2C0, I2C_FLAG_ADDSEND)) && (timeout < I2C_TIME_OUT)) {
+                    timeout++;
+                }
+                if (timeout < I2C_TIME_OUT) {
+                    i2c_flag_clear(I2C0, I2C_FLAG_ADDSEND);
+                    if ((SET == read_cycle) && (1 == number_of_byte)) {
+                        /* send a stop condition to I2C bus */
+                        i2c_stop_on_bus(I2C0);
+                    }
+                    timeout = 0;
+                    state = I2C_TRANSMIT_DATA;
+                } else {
+                    timeout = 0;
+                    state = I2C_START;
+                    read_cycle = RESET;
+#ifdef DEBUG_VERBOES
+                    printf("i2c master clears address flag timeout in READ!\n");
+#endif
+                }
+                break;
+            case I2C_TRANSMIT_DATA:
+                if (RESET == read_cycle) {
+                    /* wait until the transmit data buffer is empty */
+                    while ((!i2c_flag_get(I2C0, I2C_FLAG_TBE)) && (timeout < I2C_TIME_OUT)) {
+                        timeout++;
+                    }
+                    if (timeout < I2C_TIME_OUT) {
+                        /* send the EEPROM's internal address to write to : only one byte address */
+                        i2c_data_transmit(I2C0, reg_addr);
+                        timeout = 0;
+                    } else {
+                        timeout = 0;
+                        state = I2C_START;
+                        read_cycle = RESET;
+#ifdef DEBUG_VERBOES
+                        printf("i2c master wait data buffer is empty timeout in READ!\n");
+#endif
+                    }
+                    /* wait until BTC bit is set */
+                    while ((!i2c_flag_get(I2C0, I2C_FLAG_BTC)) && (timeout < I2C_TIME_OUT)) {
+                        timeout++;
+                    }
+                    if (timeout < I2C_TIME_OUT) {
+                        timeout = 0;
+                        state = I2C_START;
+                        read_cycle = SET;
+                    } else {
+                        timeout = 0;
+                        state = I2C_START;
+                        read_cycle = RESET;
+#ifdef DEBUG_VERBOES
+                        printf("i2c master sends register address timeout in READ!\n");
+#endif
+                    }
+                } else {
+                    while (number_of_byte) {
+                        timeout++;
+                        if (2 == number_of_byte) {
+                            /* wait until BTC bit is set */
+                            while (!i2c_flag_get(I2C0, I2C_FLAG_BTC));
+                            /* send a stop condition to I2C bus */
+                            i2c_stop_on_bus(I2C0);
+                        }
+                        /* wait until RBNE bit is set */
+                        if (i2c_flag_get(I2C0, I2C_FLAG_RBNE)) {
+                            /* read a byte from the EEPROM */
+                            *data = i2c_data_receive(I2C0);
+                            /* point to the next location where the byte read will be saved */
+                            data++;
+                            /* decrement the read bytes counter */
+                            number_of_byte--;
+                            timeout = 0;
+                        }
+                        if (timeout > I2C_TIME_OUT) {
+                            timeout = 0;
+                            state = I2C_START;
+                            read_cycle = 0;
+#ifdef DEBUG_VERBOES
+                            printf("i2c master sends data timeout in READ!\n");
+#endif
+                        }
+                    }
+                    timeout = 0;
+                    state = I2C_STOP;
+                }
+                break;
+            case I2C_STOP:
+                /* i2c master sends STOP signal successfully */
+                while ((I2C_CTL0(I2C0) & I2C_CTL0_STOP) && (timeout < I2C_TIME_OUT)) {
+                    timeout++;
+                }
+                if (timeout < I2C_TIME_OUT) {
+                    timeout = 0;
+                    state = I2C_END;
+                    i2c_timeout_flag = I2C_OK;
+                } else {
+                    timeout = 0;
+                    state = I2C_START;
+                    read_cycle = 0;
+#ifdef DEBUG_VERBOES
+                    printf("i2c master sends stop signal timeout in READ!\n");
+#endif
+                }
+                break;
+            default:
+                state = I2C_START;
+                read_cycle = 0;
+                i2c_timeout_flag = I2C_OK;
+                timeout = 0;
+#ifdef DEBUG_VERBOES
+                printf("i2c master sends start signal in READ.\n");
+#endif
+                break;
+        }
+    }
+    return I2C_END;
+}

src/ldc1612.c

@@ -0,0 +1,295 @@
+//
+// Created by dell on 24-12-3.
+//
+
+#include "ldc1612.h"
+
+/** @brief set conversion interval time.
+    @param channel LDC1612 has total two channels.
+    @param result The value to be set.
+ * */
+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.
+    @param channel LDC1612 has total two channels.
+    @param result The value to be set.
+ * */
+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.
+    @param channel LDC1612 has total two channels.
+    @param result The value to be set.
+ * */
+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.
+    @param channel LDC1612 has total two channels.
+    @param FIN_DIV FIN input divide
+    @param FREF_DIV fref,reference frequency of sensor.
+ * */
+void ldc1612_set_freq_divide(uint8_t channel) {
+    uint16_t value;
+    uint16_t fin_div, freq_div;
+    float sensor_freq;
+
+    sensor_freq = 1 / (2 * 3.14 * sqrt(COIL_L_UH * COIL_C_PF * pow(10, -18))) * pow(10, -6);
+
+    fin_div = (uint16_t) (sensor_freq / 8.75 + 1);
+
+    if (fin_div * 4 < 40) {
+        freq_div = 2;
+    } else {
+        freq_div = 4;
+    }
+
+    value = fin_div << 12;
+    value |= freq_div;
+    // printf("\tvalue: 0x%x\r\n", value);
+
+    uint8_t data[2] = {0};
+    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.
+    @param result The value to be set.
+ * */
+void ldc1612_set_error_config(uint16_t value) {
+    uint8_t data[2] = {0};
+    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.
+    @param result The value to be set.
+ * */
+void ldc1612_set_mux_config(uint16_t value) {
+    uint8_t data[2] = {0};
+    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.
+
+ * */
+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.
+    @param result The value to be set.
+ * */
+void ldc1612_set_drive_current(uint8_t channel, uint16_t value) {
+    uint8_t data[2] = {0};
+    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 ..
+    @param result The value to be set.
+ * */
+void ldc1612_set_sensor_config(uint16_t value) {
+    uint8_t data[2] = {0};
+    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) {
+    ldc1612_set_freq_divide(CHANNEL_0); //0x14 --0x1002
+
+    ldc1612_set_LC_stabilize_time(CHANNEL_0, LC_STABILIZE_TIME_CH0); //0x10 --0x001E
+
+    ldc1612_set_conversion_time(CHANNEL_0, LDC1612_CONVERSION_TIME_CH0); //0x08 --0x0546
+
+    ldc1612_set_error_config(LDC1612_ERROR_CONFIG); //0x19 --0x0000)
+
+    ldc1612_set_drive_current(CHANNEL_0, LDC1612_DRIVE_CURRENT); //0x1E --0x9000
+
+    ldc1612_set_mux_config(LDC1612_MUX_CONFIG); //0x1B --0x020C
+
+    ldc1612_set_sensor_config(LDC1612_SENSOR_CONFIG); //0x1A --0x1601
+}
+
+void ldc1612_iic_get_sensor_infomation(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
+    printf("\tManufacturer: 0x%x", (data[0] << 8) | data[1]);
+
+#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];
+}
+
+/** @brief read the raw channel result from register.
+    @param channel LDC1612 has total two channels.
+    @param result raw data
+ * */
+uint32_t ldc1612_get_raw_channel_result(uint8_t channel) {
+    uint32_t raw_value = 0;
+    uint8_t value[2] = {0};
+
+#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;
+
+#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);
+}
+
+/** @brief parse the data which read from data register.
+    @param channel LDC1612 has total two channels.
+    @param raw_result the raw data which read from data register,it contains error codes and sensor value;
+ * */
+uint32_t ldc1612_parse_raw_result(uint32_t raw_result) {
+    uint32_t calibration_value = 0;
+    uint8_t error_code = 0;
+
+    calibration_value = raw_result & 0x0FFFFFFF;
+    if (0xFFFFFFF == calibration_value) {
+        return 0xF0000000;
+        // ERR_NC-No coil detected!!!
+    }
+
+    error_code = raw_result >> 24;
+
+    if (error_code & 0x80) {
+        return 0x80000000;
+        // ERR_UR-Under range error!!!
+    }
+    if (error_code & 0x40) {
+        return 0x40000000;
+        // ERR_OR-Over range error!!!
+    }
+    if (error_code & 0x20) {
+        return 0x20000000;
+        // ERR_WD-Watch dog timeout error!!!
+    }
+    if (error_code & 0x10) {
+        return 0x10000000;
+        // ERR_AE-error!!!
+    }
+
+    return raw_result;
+}
+
+void ldc1612_drvie_current_detect(uint8_t channel) {
+    uint8_t data[2] = {0};
+    uint16_t init_value = 0 , drive_current = 0;
+
+    ldc1612_set_sensor_config(LDC1612_SLEEP_MODE);
+    ldc1612_set_freq_divide(channel);
+    soft_i2c_read_16bits(LDC1612_ADDR, SENSOR_CONFIG_REG, data);
+    ldc1612_set_sensor_config(LDC1612_SLEEP_MODE);
+    ldc1612_set_sensor_config(LDC1612_SENSOR_CONFIG); //0x1A --0x1601
+    delay_ms(10);
+    soft_i2c_read_16bits(LDC1612_ADDR, SET_DRIVER_CURRENT_REG, data);
+
+    init_value = (((data[0] << 8) | data[1]) >> 6) & 0x1F;
+    drive_current = (init_value << 11) | 0x0000;
+    printf("init value: 0x%x\tdrive current: 0x%x\n", init_value, drive_current);
+}

src/led.c

@@ -0,0 +1,32 @@
+//
+// Created by dell on 24-12-20.
+//
+
+#include "led.h"
+
+void led_config(void) {
+    rcu_periph_clock_enable(LED_RCU);
+
+    gpio_mode_set(LED_PORT, GPIO_MODE_OUTPUT, GPIO_PUPD_NONE, LED_PIN);
+    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_BLINK_TIMER_RCU);
+    timer_deinit(LED_BLINK_TIMER);
+
+    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 = 9999;
+    timer_initpara.clockdivision = TIMER_CKDIV_DIV1;
+    timer_init(LED_BLINK_TIMER, &timer_initpara);
+
+    timer_auto_reload_shadow_enable(LED_BLINK_TIMER);
+    timer_interrupt_enable(LED_BLINK_TIMER, TIMER_INT_UP);
+
+    timer_enable(LED_BLINK_TIMER);
+
+    nvic_irq_enable(LED_BLINK_IRQ, 3U);
+}

src/main.c

@@ -5,85 +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 "LDC1612.h"
-
-void led_config(void)
-{
-    rcu_periph_clock_enable(LED_RCU);
-
-    gpio_mode_set(LED_PORT, GPIO_MODE_OUTPUT, GPIO_PUPD_NONE, LED_PIN);
-    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);
-    timer_deinit(LED_TIMER);
-
-    timer_parameter_struct timer_initpara;
-    timer_struct_para_init(&timer_initpara);
-    timer_initpara.prescaler = 799;
-    timer_initpara.alignedmode = TIMER_COUNTER_EDGE;
-    timer_initpara.counterdirection = TIMER_COUNTER_UP;
-    timer_initpara.period = 999;
-    timer_initpara.clockdivision = TIMER_CKDIV_DIV1;
-    timer_init(LED_TIMER, &timer_initpara);
-
-    timer_auto_reload_shadow_enable(LED_TIMER);
-    timer_interrupt_enable(LED_TIMER, TIMER_INT_UP);
-
-    timer_enable(LED_TIMER);
-
-    nvic_irq_enable(LED_IRQ, 2);
-}
-
-void iicSendData(void)
-{
-    while (i2c_flag_get(I2C0, I2C_FLAG_I2CBSY));
-    i2c_start_on_bus(I2C0);
-    printf("1\r\n");
-    while (!i2c_flag_get(I2C0, I2C_FLAG_SBSEND));
-    i2c_master_addressing(I2C0, LDC1612_ADDR, I2C_TRANSMITTER);
-    printf("2\r\n");
-    while (!i2c_flag_get(I2C0, I2C_FLAG_ADDSEND));
-    i2c_flag_clear(I2C0, I2C_FLAG_ADDSEND);
-    printf("3\r\n");
-    while (!i2c_flag_get(I2C0, I2C_FLAG_TBE));
-    i2c_data_transmit(I2C0, 0x7E);
-    printf("4\r\n");
-    i2c_start_on_bus(I2C0);
-}
-
-void iicReceiveData(void)
-{
-    uint16_t data[3] = {0};
-    i2c_start_on_bus(I2C0);
-    // i2c_stop_on_bus(I2C0);
-    printf("5\r\n");
-    while (!i2c_flag_get(I2C0, I2C_FLAG_SBSEND));
-    i2c_master_addressing(I2C0, LDC1612_ADDR, I2C_RECEIVER);
-    printf("6\r\n");
-    while (!i2c_flag_get(I2C0, I2C_FLAG_ADDSEND));
-    i2c_flag_clear(I2C0, I2C_FLAG_ADDSEND);
-    printf("7\r\n");
-    i2c_ack_config(I2C0, I2C_ACK_DISABLE);
-    while (!i2c_flag_get(I2C0, I2C_FLAG_RBNE));
-    data[0] = i2c_data_receive(I2C0);
-    while (!i2c_flag_get(I2C0, I2C_FLAG_RBNE));
-    data[1] = i2c_data_receive(I2C0);
-    while (!i2c_flag_get(I2C0, I2C_FLAG_RBNE));
-    data[2] = i2c_data_receive(I2C0);
-
-    i2c_stop_on_bus(I2C0);
-    i2c_ack_config(I2C0, I2C_ACK_ENABLE);
-
-    printf("data[0] = %x\r\n", data[0]);
-    printf("data[1] = %x\r\n", data[1]);
-    printf("data[2] = %x\r\n", data[2]);
-}
 
 /*!
     \brief      main function
@@ -91,76 +12,44 @@ void iicReceiveData(void)
     \param[out] none
     \retval     none
 */
-int main(void)
-{
+int main(void) {
+    setbuf(stdout, NULL);
     /* configure systick */
     systick_config();
-    RS485_config();
+    /* configure USART */
+    rs485_config();
+    /* configure LED */
     led_config();
-    I2C_config();
 
-    // delay_ms(5000);
-    printf("\r\n");
-    printf("XLSW-3DP-LDC1612! V0.0.1\r\n");
-    printf("\r\n");
+    /* configure I2C */
+#ifdef SOFTWARE_IIC
+    soft_i2c_config();
+#else
+    i2c_config();
+#endif
 
-    // uint16_t data[3] = {0};
+#ifdef DEBUG_VERBOES
+    ldc1612_iic_get_sensor_infomation();
+#endif
 
-    // I2C_scan();
+    /* configure LDC1612 */
+    ldc1612_single_ch0_config();
 
-    delay_ms(1000);
+    /* Initialize watchdog */
+    watchdog_init();
 
-    // while (i2c_flag_get(I2C0, I2C_FLAG_I2CBSY));
-    // i2c_start_on_bus(I2C0);
-    // printf("1\r\n");
-    // while (!i2c_flag_get(I2C0, I2C_FLAG_SBSEND));
-    // i2c_master_addressing(I2C0, LDC1612_ADDR, I2C_TRANSMITTER);
-    // printf("2\r\n");
-    // while (!i2c_flag_get(I2C0, I2C_FLAG_ADDSEND));
-    // i2c_flag_clear(I2C0, I2C_FLAG_ADDSEND);
-    // printf("3\r\n");
-    // while (!i2c_flag_get(I2C0, I2C_FLAG_TBE));
-    // i2c_data_transmit(I2C0, 0x7E);
-    // printf("4\r\n");
-    // i2c_start_on_bus(I2C0);
-    // // i2c_stop_on_bus(I2C0);
-
-
-    // delay_ms(100);
-    // i2c_start_on_bus(I2C0);
-    // delay_ms(100);
-    // i2c_stop_on_bus(I2C0);
-
-
-    // i2c_stop_on_bus(I2C0);
-    // i2c_ack_config(I2C0, I2C_ACK_ENABLE);
-
-    // iicSendData();
-    // iicReceiveData();
-
-    int result = 0;
-    result = LDC1612_IIC_read_16bits();
-    printf("result = %d\r\n", result);
-
-    while(1){
-
-
-        delay_ms(1000);
-        printf("OK!!!\r\n");
-        // iicSendData();
-
-        // i2c_flag_clear(I2C0, I2C_FLAG_I2CBSY);
+    while (1) {
 
+        // delay_ms(10);
+        fwdgt_counter_reload();
     }
 }
 
 /* retarget the C library printf function to the USART */
-int _write (int fd, char *pBuffer, int size)
-{
-    for (int i = 0; i < size; i++)
-    {
-        usart_data_transmit(USART0, (uint8_t)pBuffer[i]);
-        while(RESET == usart_flag_get(USART0, USART_FLAG_TBE));
+int _write(int fd, char *pBuffer, int size) {
+    for (int i = 0; i < size; i++) {
+        usart_data_transmit(USART0, (uint8_t) pBuffer[i]);
+        while (RESET == usart_flag_get(USART0, USART_FLAG_TBE));
     }
     return size;
 }

src/peripheral.c

@@ -1,63 +0,0 @@
-//
-// Created by yelv1 on 24-9-22.
-//
-#include "peripheral.h"
-#include "gd32e23x.h"
-
-void usart_config(void)
-{
-    rcu_periph_clock_enable(RCU_GPIOA);
-    rcu_periph_clock_enable(RCU_USART0);
-
-    gpio_af_set(GPIOA, GPIO_AF_1, GPIO_PIN_3);
-    gpio_af_set(GPIOA, GPIO_AF_1, GPIO_PIN_2);
-
-    gpio_mode_set(GPIOA, GPIO_MODE_AF, GPIO_PUPD_PULLUP, GPIO_PIN_3);
-    gpio_output_options_set(GPIOA, GPIO_OTYPE_PP, GPIO_OSPEED_10MHZ, GPIO_PIN_3);
-    gpio_mode_set(GPIOA, GPIO_MODE_AF, GPIO_PUPD_PULLUP, GPIO_PIN_2);
-    gpio_output_options_set(GPIOA, GPIO_OTYPE_PP, GPIO_OSPEED_10MHZ, GPIO_PIN_2);
-
-    usart_deinit(USART0);
-    usart_baudrate_set(USART0, 115200U);
-    usart_receive_config(USART0, USART_RECEIVE_ENABLE);
-    usart_transmit_config(USART0, USART_TRANSMIT_ENABLE);
-
-    usart_enable(USART0);
-
-    gpio_mode_set(GPIOA, GPIO_MODE_OUTPUT, GPIO_PUPD_NONE, GPIO_PIN_4);
-    gpio_output_options_set(GPIOA, GPIO_OTYPE_PP, GPIO_OSPEED_50MHZ, GPIO_PIN_4);
-
-    gpio_bit_write(GPIOA, GPIO_PIN_4, SET);
-}
-
-/*!
-    \brief      led blink configuration
-    \param[in]  none
-    \param[out] none
-    \retval     none
-*/
-void led_blink_config(void)
-{
-    rcu_periph_clock_enable(RCU_GPIOB);
-
-    gpio_mode_set(GPIOA, 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);
-}

src/rs485.c

@@ -0,0 +1,208 @@
+//
+// Created by dell on 24-12-3.
+//
+
+#include "rs485.h"
+
+uint8_t package_header[3] = {0xB5, 0xF0, 0x04};
+uint8_t package_data[4] = {0};
+
+void rs485_config(void) {
+#ifndef RS485_MAX13487
+    rcu_periph_clock_enable(RS485_GPIO_RCU);
+    rcu_periph_clock_enable(RS485_RCU);
+
+    gpio_af_set(RS485_GPIO_PORT, GPIO_AF_1, RS485_TX_PIN | RS485_RX_PIN | RS485_EN_PIN);
+
+    /* configure USART Tx&Rx as alternate function push-pull */
+    gpio_mode_set(RS485_GPIO_PORT, GPIO_MODE_AF, GPIO_PUPD_PULLUP, RS485_TX_PIN | RS485_RX_PIN);
+    gpio_output_options_set(RS485_GPIO_PORT, GPIO_OTYPE_PP, GPIO_OSPEED_10MHZ, RS485_TX_PIN | RS485_RX_PIN);
+
+    /* configure RS485 EN Pin */
+    gpio_mode_set(RS485_GPIO_PORT, GPIO_MODE_AF, GPIO_PUPD_NONE, RS485_EN_PIN);
+    gpio_output_options_set(RS485_GPIO_PORT, GPIO_OTYPE_PP, GPIO_OSPEED_50MHZ, RS485_EN_PIN);
+    // gpio_bit_write(RS485_GPIO_PORT, RS485_EN_PIN, SET);
+
+    /* USART configure */
+    usart_deinit(RS485_PHY);
+    usart_baudrate_set(RS485_PHY, RS485_BAUDRATE);
+    // usart_parity_config(RS485_PHY, USART_PM_NONE);
+    // usart_word_length_set(RS485_PHY, USART_WL_8BIT);
+    // usart_stop_bit_set(RS485_PHY, USART_STB_1BIT);
+    usart_receive_config(RS485_PHY, USART_RECEIVE_ENABLE);
+    usart_transmit_config(RS485_PHY, USART_TRANSMIT_ENABLE);
+
+    usart_driver_assertime_config(RS485_PHY, 0x01);
+    usart_driver_deassertime_config(RS485_PHY, 0x01);
+
+    // usart_depolarity_config(USART0, USART_DEP_HIGH);
+    // usart_depolarity_config(USART0, USART_DEP_LOW);
+
+    usart_rs485_driver_enable(RS485_PHY);
+    usart_enable(RS485_PHY);
+
+    nvic_irq_enable(USART0_IRQn, 0);
+    usart_interrupt_enable(RS485_PHY, USART_INT_RBNE);
+    usart_interrupt_enable(RS485_PHY, USART_INT_IDLE);
+#else
+    rcu_periph_clock_enable(RS485_GPIO_RCU);
+    rcu_periph_clock_enable(RS485_RCU);
+
+    gpio_af_set(RS485_GPIO_PORT, GPIO_AF_1, GPIO_PIN_2 | GPIO_PIN_3);
+
+    /* configure USART Tx&Rx as alternate function push-pull */
+    gpio_mode_set(RS485_GPIO_PORT, GPIO_MODE_AF, GPIO_PUPD_PULLUP, RS485_TX_PIN | RS485_RX_PIN);
+    gpio_output_options_set(RS485_GPIO_PORT, GPIO_OTYPE_PP, GPIO_OSPEED_10MHZ, RS485_TX_PIN | RS485_RX_PIN);
+
+    /* configure RS485 EN Pin */
+    gpio_mode_set(RS485_GPIO_PORT, GPIO_MODE_OUTPUT, GPIO_PUPD_NONE, RS485_EN_PIN);
+    gpio_output_options_set(RS485_GPIO_PORT, GPIO_OTYPE_PP, GPIO_OSPEED_50MHZ, RS485_EN_PIN);
+    gpio_bit_write(RS485_GPIO_PORT, RS485_EN_PIN, SET);
+
+    /* USART configure */
+    usart_deinit(RS485_PHY);
+    usart_baudrate_set(RS485_PHY, RS485_BAUDRATE);
+    usart_receive_config(RS485_PHY, USART_RECEIVE_ENABLE);
+    usart_transmit_config(RS485_PHY, USART_TRANSMIT_ENABLE);
+
+    usart_enable(RS485_PHY);
+
+    nvic_irq_enable(USART0_IRQn, 0);
+    usart_interrupt_enable(RS485_PHY, USART_INT_RBNE);
+    usart_interrupt_enable(RS485_PHY, USART_INT_IDLE);
+#endif
+}
+
+void process_command(uint8_t *cmd, size_t length) {
+    char combined_str[3];
+    validation_result_t validate = VALIDATION_SUCCESS;
+
+    validate = (validate_package_header(cmd) |
+                validate_package_type(cmd) |
+                validate_data_length(cmd) |
+                validate_package_crc(cmd, length));
+
+    switch (validate) {
+        case VALIDATION_SUCCESS:
+            // printf("%d", 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)
+            {
+                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;
+            }
+            break;
+        case VALIDATION_CRC_ERROR:
+            printf("%c%c%c%c%c%c%c", 0xB5, 0xF1, 0x03, 0x65, 0x72, 0x72, 0x3D);
+            break;
+        case VALIDATION_HEADER_ERROR:
+            printf("%c%c%c%c%c%c%c", 0xB5, 0xF2, 0x03, 0x65, 0x72, 0x72, 0x3E);
+            break;
+        case VALIDATION_TYPE_ERROR:
+            printf("%c%c%c%c%c%c%c", 0xB5, 0xF3, 0x03, 0x65, 0x72, 0x72, 0x3F);
+            break;
+        case VALIDATION_LENGTH_ERROR:
+            printf("%c%c%c%c%c%c%c", 0xB5, 0xF4, 0x03, 0x65, 0x72, 0x72, 0x40);
+            break;
+        default:
+            break;
+    }
+}
+
+uint8_t calculate_crc(uint8_t data[], uint8_t data_length) {
+    uint8_t crc = 0;
+
+    for (uint8_t i = 1; i < data_length - 1; i++) {
+        crc += data[i];
+    }
+
+    return (uint8_t) (crc & 0xFF);
+}
+
+validation_result_t validate_package_crc(uint8_t *data, uint8_t data_length) {
+    if (data[data_length - 1] == calculate_crc(data, data_length) && data_length == 3 + data[2] + 1) {
+        return VALIDATION_SUCCESS;
+    } else {
+        return VALIDATION_CRC_ERROR;
+    }
+}
+
+validation_result_t validate_package_header(uint8_t *data) {
+    if (data[0] == PROTOCOL_PACKAGE_HEADER) {
+        return VALIDATION_SUCCESS;
+    } else {
+        return VALIDATION_HEADER_ERROR;
+    }
+}
+
+validation_result_t validate_package_type(uint8_t *data) {
+    if (data[1] == PROTOCOL_BOARD_TYPE) {
+        return VALIDATION_SUCCESS;
+    } else {
+        return VALIDATION_TYPE_ERROR;
+    }
+}
+
+validation_result_t validate_data_length(uint8_t *data) {
+    if (data[2] == PROTOCOL_PACKAGE_LENGTH) {
+        return VALIDATION_SUCCESS;
+    } else {
+        return VALIDATION_LENGTH_ERROR;
+    }
+}
+
+void eddy_current_value_report(void) {
+    static uint32_t eddy_current_value_uint32 = 0;
+
+    eddy_current_value_uint32 = ldc1612_get_raw_channel_result(CHANNEL_0);
+
+    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;
+
+
+#ifdef DEBUG_VOFA_TOOL
+    printf("%d\n", eddy_current_value_uint32);
+#else
+    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);
+    memcpy(combined_data + 3, package_data, 4);
+
+    printf("%c%c%c", package_header[0], package_header[1], package_header[2]);
+    printf("%c%c%c%c", package_data[0], package_data[1], package_data[2], package_data[3]);
+    printf("%c", calculate_crc(combined_data, 8));
+#endif
+}
+
+void tempture_value_report(void) {
+    static uint32_t temperature_uint32 = 0;
+
+    temperature_uint32 = tmp112a_get_raw_channel_result();
+
+    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);
+    memcpy(combined_data + 3, package_data, 4);
+
+    printf("%c%c%c", package_header[0], package_header[1], package_header[2]);
+    printf("%c%c%c%c", package_data[0], package_data[1], package_data[2], package_data[3]);
+    printf("%c", calculate_crc(combined_data, 8));
+}

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

@@ -0,0 +1,21 @@
+//
+// Created by dell on 24-12-20.
+//
+
+#include "tmp112.h"
+
+uint32_t tmp112a_get_raw_channel_result(void) {
+    uint16_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(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);
+}