add calculate CRC function

# Conflicts:
#	src/LDC1612.c
#	src/main.c

CMakeLists.txt

@@ -4,8 +4,8 @@ include(cmake/toolchain.cmake)
 project(xlsw_3dp_LDC1612)
 
 set(VERSION_MAJOR 0)
-set(VERSION_MINOR 0)
-set(VERSION_PATCH 1)
+set(VERSION_MINOR 1)
+set(VERSION_PATCH 0)
 set(VERSION "V${VERSION_MAJOR}.${VERSION_MINOR}.${VERSION_PATCH}")
 string(TIMESTAMP CURRENT_DATE "%Y-%m-%d")
 
@@ -24,9 +24,11 @@ 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
 )
 
 add_executable(xlsw_3dp_LDC1612 ${TARGET_C_SRC})

inc/i2c.h

@@ -0,0 +1,51 @@
+//
+// Created by dell on 24-12-20.
+//
+
+#ifndef I2C_H
+#define I2C_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>
+
+#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_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

@@ -13,6 +13,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <math.h>
+#include "i2c.h"
 
 #define LDC1612_ADDR         (0x2B << 1)
 
@@ -55,35 +56,7 @@
 #define COIL_C_PF                150
 #define COIL_Q_FACTOR            35.97
 
-typedef enum {
-    I2C_START = 0,
-    I2C_SEND_ADDRESS,
-    I2C_CLEAR_ADDRESS_FLAG,
-    I2C_TRANSMIT_DATA,
-    I2C_STOP
-} i2c_process_enum;
-
-#define I2C_TIME_OUT    (uint16_t)(10000)
-#define I2C_OK          1
-#define I2C_FAIL        0
-#define I2C_END         1
-
-#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
-
-void i2c_gpio_config(void);
-
-void i2c_config(void);
-
-void i2c_bus_reset(void);
-
-void i2c_scan(void);
+/******************************************************************************/
 
 void ldc1612_set_conversion_time(uint8_t channel, uint16_t result);
 
@@ -115,8 +88,4 @@ uint32_t ldc1612_get_raw_channel_result(uint8_t channel);
 
 uint32_t ldc1612_parse_raw_result(uint32_t raw_result);
 
-uint8_t ldc1612_iic_read_16bits(uint8_t reg_addr, uint8_t *data);
-
-uint8_t ldc1612_iic_write_16bits(uint8_t reg_addr, uint8_t data[2]);
-
 #endif //LDC1612_H

inc/led.h

@@ -0,0 +1,26 @@
+//
+// Created by dell on 24-12-20.
+//
+
+#ifndef LED_H
+#define LED_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>
+
+#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);
+
+#endif //LED_H

inc/main.h

@@ -35,13 +35,4 @@ 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
-
-void led_config(void);
-
 #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

@@ -12,6 +12,7 @@
 #include <string.h>
 #include <stdio.h>
 #include <stdlib.h>
+#include <sys/types.h>
 
 #define RS485_RCU            RCU_USART0
 #define RS485_GPIO_RCU       RCU_GPIOA
@@ -25,7 +26,7 @@
 
 #define RX_BUFFER_SIZE 64
 
-void RS485_config(void);
+void rs485_config(void);
 void process_command(char *cmd);
 
 #endif //RS485_H

inc/tmp112.h

@@ -0,0 +1,22 @@
+//
+// Created by dell on 24-12-20.
+//
+
+#ifndef TMP112_H
+#define TMP112_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 "i2c.h"
+
+#define TMP112A_ADDR         (0x49 << 1)
+
+uint32_t tmp112a_get_raw_channel_result(void);
+
+#endif //TMP112_H

src/gd32e23x_it.c

@@ -35,7 +35,12 @@ 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"
+
+char rx_buffer[RX_BUFFER_SIZE];
+uint8_t rx_index = 0;
 
 /*!
     \brief      this function handles NMI exception
@@ -121,3 +126,23 @@ void TIMER16_IRQHandler(void) {
         led_status = !led_status;
     }
 }
+
+void USART0_IRQHandler(void) {
+    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;
+        }
+
+        // 检查是否接收到换行符，表示指令结束
+        if(received_data == '\n') {
+            rx_buffer[rx_index] = '\0'; // 添加字符串结束符
+            process_command(rx_buffer); // 处理指令
+            rx_index = 0; // 重置缓冲区索引
+        }
+    }
+}

src/i2c.c

@@ -1,8 +1,8 @@
 //
-// Created by dell on 24-12-3.
+// Created by dell on 24-12-20.
 //
 
-#include "LDC1612.h"
+#include "i2c.h"
 
 /*!
     \brief      configure the GPIO ports
@@ -37,7 +37,7 @@ void i2c_config(void) {
     /* 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, LDC1612_ADDR);
+    i2c_mode_addr_config(I2C0, I2C_I2CMODE_ENABLE, I2C_ADDFORMAT_7BITS, 0xA0);
     /* enable I2CX */
     i2c_enable(I2C0);
     /* enable acknowledge */
@@ -137,214 +137,146 @@ void i2c_scan(void) {
     }
 }
 
-/** @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;
-    ldc1612_iic_write_16bits(SET_CONVERSION_TIME_REG_START + channel, data);
-}
+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;
 
-/** @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;
-    ldc1612_iic_write_16bits(SET_CONVERSION_OFFSET_REG_START + channel, data);
-}
-
-/** @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;
-    ldc1612_iic_write_16bits(SET_LC_STABILIZE_REG_START + channel, data);
-}
-
-/** @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;
+    /* 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 {
-        freq_div = 4;
+                    timeout = 0;
+                    state = I2C_START;
+                    printf("i2c bus is busy in WRITE BYTE!\n");
+                }
+                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;
+                    printf("i2c master sends start signal timeout in WRITE BYTE!\n");
+                }
+                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;
+                    printf("i2c master clears address flag timeout in WRITE BYTE!\n");
+                }
+                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;
+                    printf("i2c master sends data timeout in WRITE BYTE!\n");
                 }
 
-    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);
-
-    ldc1612_iic_write_16bits(SET_FREQ_REG_START + channel, data);
-}
-
-/** @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;
-
-    ldc1612_iic_write_16bits(ERROR_CONFIG_REG, data);
-}
-
-/** @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;
-
-    ldc1612_iic_write_16bits(MUL_CONFIG_REG, data);
-}
-
-/** @brief reset sensor.
-
- * */
-void ldc1612_reset_sensor(void) {
-    uint8_t data[2] = {0};
-    data[0] = 0x80;
-    data[1] = 0x00;
-    ldc1612_iic_write_16bits(SENSOR_RESET_REG, data);
-}
-
-/** @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;
-
-    ldc1612_iic_write_16bits(SET_DRIVER_CURRENT_REG + channel, data);
-}
-
-/** @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;
-
-    ldc1612_iic_write_16bits(SENSOR_CONFIG_REG, data);
-}
-
-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};
-    ldc1612_iic_read_16bits(READ_MANUFACTURER_ID, data);
-    printf("\tManufacturer: 0x%x\r\n", (data[0] << 8) | data[1]);
-    ldc1612_iic_read_16bits(READ_DEVICE_ID, data);
-    printf("\tDevice: 0x%x\r\n", (data[0] << 8) | data[1]);
-}
-
-uint16_t ldc1612_get_manufacturer_id(void) {
-    uint8_t data[2] = {0};
-    ldc1612_iic_read_16bits(READ_MANUFACTURER_ID, data);
-    return (data[0] << 8) | data[1];
-}
-
-uint16_t ldc1612_get_deveice_id(void) {
-    uint8_t data[2] = {0};
-    ldc1612_iic_read_16bits(READ_DEVICE_ID, data);
-    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};
-
-    ldc1612_iic_read_16bits(CONVERTION_RESULT_REG_START + channel, value);
-    raw_value |= (uint32_t) ((value[0] << 8) | value[1]) << 16;
-    ldc1612_iic_read_16bits(CONVERTION_RESULT_REG_START + channel + 1, value);
-    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!!!
+            /* 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;
+                    printf("i2c master sends MSB data timeout in WRITE BYTE!\n");
                 }
 
-    error_code = raw_result >> 24;
-
-    if (error_code & 0x80) {
-        return 0x80000000;
-        // ERR_UR-Under range error!!!
+            /* wait until BTC bit is set */
+                while ((!i2c_flag_get(I2C0, I2C_FLAG_BTC)) && (timeout < I2C_TIME_OUT)) {
+                    timeout++;
                 }
-    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!!!
+                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;
+                    printf("i2c master sends LSB data timeout in WRITE BYTE!\n");
                 }
 
-    return raw_result;
+            /* 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;
+                    printf("i2c master sends data timeout in WRITE BYTE!\n");
+                }
+                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;
+                    printf("i2c master sends stop signal timeout in WRITE BYTE!\n");
+                }
+                break;
+            default:
+                state = I2C_START;
+                i2c_timeout_flag = I2C_OK;
+                timeout = 0;
+                printf("i2c master sends start signal in WRITE BYTE.\n");
+                break;
+        }
+    }
+    return I2C_END;
 }
 
-
-uint8_t ldc1612_iic_read_16bits(uint8_t reg_addr, uint8_t *data) {
+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;
@@ -373,7 +305,6 @@ uint8_t ldc1612_iic_read_16bits(uint8_t reg_addr, uint8_t *data) {
                     }
                 }
             /* send the start signal */
-                delay_us(5);
                 i2c_start_on_bus(I2C0);
                 timeout = 0;
                 state = I2C_SEND_ADDRESS;
@@ -385,10 +316,10 @@ uint8_t ldc1612_iic_read_16bits(uint8_t reg_addr, uint8_t *data) {
                 }
                 if (timeout < I2C_TIME_OUT) {
                     if (RESET == read_cycle) {
-                        i2c_master_addressing(I2C0, LDC1612_ADDR, I2C_TRANSMITTER);
+                        i2c_master_addressing(I2C0, slave_addr, I2C_TRANSMITTER);
                         state = I2C_CLEAR_ADDRESS_FLAG;
                     } else {
-                        i2c_master_addressing(I2C0, LDC1612_ADDR, I2C_RECEIVER);
+                        i2c_master_addressing(I2C0, slave_addr, I2C_RECEIVER);
                         i2c_ack_config(I2C0, I2C_ACK_DISABLE);
                         state = I2C_CLEAR_ADDRESS_FLAG;
                     }
@@ -507,142 +438,3 @@ uint8_t ldc1612_iic_read_16bits(uint8_t reg_addr, uint8_t *data) {
     }
     return I2C_END;
 }
-
-uint8_t ldc1612_iic_write_16bits(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;
-                    printf("i2c bus is busy in WRITE BYTE!\n");
-                }
-                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, LDC1612_ADDR, I2C_TRANSMITTER);
-                    timeout = 0;
-                    state = I2C_CLEAR_ADDRESS_FLAG;
-                } else {
-                    timeout = 0;
-                    state = I2C_START;
-                    printf("i2c master sends start signal timeout in WRITE BYTE!\n");
-                }
-                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;
-                    printf("i2c master clears address flag timeout in WRITE BYTE!\n");
-                }
-                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;
-                    printf("i2c master sends data timeout in WRITE BYTE!\n");
-                }
-
-            /* 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;
-                    printf("i2c master sends MSB data timeout in WRITE BYTE!\n");
-                }
-
-            /* 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;
-                    printf("i2c master sends LSB data timeout in WRITE BYTE!\n");
-                }
-
-            /* 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;
-                    printf("i2c master sends data timeout in WRITE BYTE!\n");
-                }
-                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;
-                    printf("i2c master sends stop signal timeout in WRITE BYTE!\n");
-                }
-                break;
-            default:
-                state = I2C_START;
-                i2c_timeout_flag = I2C_OK;
-                timeout = 0;
-                printf("i2c master sends start signal in WRITE BYTE.\n");
-                break;
-        }
-    }
-    return I2C_END;
-}

src/ldc1612.c

@@ -0,0 +1,215 @@
+//
+// 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;
+    i2c_read_16bits(LDC1612_ADDR, SET_CONVERSION_TIME_REG_START + channel, data);
+}
+
+/** @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;
+    i2c_read_16bits(LDC1612_ADDR, SET_CONVERSION_OFFSET_REG_START + channel, data);
+}
+
+/** @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;
+    i2c_read_16bits(LDC1612_ADDR, SET_LC_STABILIZE_REG_START + channel, data);
+}
+
+/** @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);
+
+    i2c_read_16bits(LDC1612_ADDR, SET_FREQ_REG_START + channel, data);
+}
+
+/** @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;
+
+    i2c_read_16bits(LDC1612_ADDR, ERROR_CONFIG_REG, data);
+}
+
+/** @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;
+
+    i2c_read_16bits(LDC1612_ADDR, MUL_CONFIG_REG, data);
+}
+
+/** @brief reset sensor.
+
+ * */
+void ldc1612_reset_sensor(void) {
+    uint8_t data[2] = {0};
+    data[0] = 0x80;
+    data[1] = 0x00;
+    i2c_read_16bits(LDC1612_ADDR, SENSOR_RESET_REG, data);
+}
+
+/** @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;
+
+    i2c_read_16bits(LDC1612_ADDR, SET_DRIVER_CURRENT_REG + channel, data);
+}
+
+/** @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;
+
+    i2c_read_16bits(LDC1612_ADDR, SENSOR_CONFIG_REG, data);
+}
+
+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};
+    // ldc1612_iic_read_16bits(READ_MANUFACTURER_ID, data);
+    i2c_read_16bits(LDC1612_ADDR, READ_MANUFACTURER_ID, data);
+    printf("\tManufacturer: 0x%x\r\n", (data[0] << 8) | data[1]);
+    // ldc1612_iic_read_16bits(READ_DEVICE_ID, data);
+    i2c_read_16bits(LDC1612_ADDR, READ_DEVICE_ID, data);
+    printf("\tDevice: 0x%x\r\n", (data[0] << 8) | data[1]);
+}
+
+uint16_t ldc1612_get_manufacturer_id(void) {
+    uint8_t data[2] = {0};
+    i2c_read_16bits(LDC1612_ADDR, READ_MANUFACTURER_ID, data);
+    return (data[0] << 8) | data[1];
+}
+
+uint16_t ldc1612_get_deveice_id(void) {
+    uint8_t data[2] = {0};
+    i2c_read_16bits(LDC1612_ADDR, READ_DEVICE_ID, data);
+    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};
+
+    // ldc1612_iic_read_16bits(CONVERTION_RESULT_REG_START + channel, value);
+    i2c_read_16bits(LDC1612_ADDR, CONVERTION_RESULT_REG_START + channel, value);
+    raw_value |= (uint32_t) ((value[0] << 8) | value[1]) << 16;
+    // ldc1612_iic_read_16bits(CONVERTION_RESULT_REG_START + channel + 1, value);
+    i2c_read_16bits(LDC1612_ADDR, CONVERTION_RESULT_REG_START + channel + 1, value);
+    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;
+}

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_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);
+}

src/main.c

@@ -9,35 +9,14 @@
 #include "gd32e23x.h"
 #include "systick.h"
 #include "gd32e23x_libopt.h"
-#include "RS485.h"
-#include "LDC1612.h"
+#include "rs485.h"
+#include "led.h"
+#include "i2c.h"
+#include "ldc1612.h"
+#include "tmp112.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);
-}
+uint32_t g_temperature_uint32;
+uint32_t g_eddy_current_value_uint32;
 
 /*!
     \brief      main function
@@ -48,22 +27,24 @@ void led_config(void) {
 int main(void) {
     /* configure systick */
     systick_config();
-    RS485_config();
+    /* configure USART */
+    rs485_config();
+    /* configure LED */
     led_config();
+    /* configure I2C */
     i2c_gpio_config();
     i2c_config();
 
-    uint32_t raw_value = 0;
-
-    delay_ms(500);
     ldc1612_iic_get_sensor_infomation();
-
+    /* configure LDC1612 */
     ldc1612_single_ch0_config();
 
     while (1) {
         delay_ms(500);
-        raw_value = ldc1612_get_raw_channel_result(CHANNEL_0);
-        printf("data:%ld\r\n",raw_value);
+        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();
     }
 }
 

src/rs485.c

@@ -2,9 +2,12 @@
 // Created by dell on 24-12-3.
 //
 
-#include "RS485.h"
+#include "rs485.h"
 
-void RS485_config(void) {
+extern uint32_t g_temperature_uint32;
+extern uint32_t g_eddy_current_value_uint32;
+
+void rs485_config(void) {
     rcu_periph_clock_enable(RS485_GPIO_RCU);
     rcu_periph_clock_enable(RS485_RCU);
 
@@ -33,9 +36,11 @@ void RS485_config(void) {
 
 void process_command(char *cmd) {
     if (strncmp(cmd, "M1", 2) == 0) {
-        printf("M1 -=-=- OK!\r\n");
+        // printf("M1 -=-=- OK!\r\n");
+        printf("EddyCurrent: %lu\r\n", g_eddy_current_value_uint32);
     } else if (strncmp(cmd, "M2", 2) == 0) {
-        printf("M2 -=-=- OK!\r\n");
+        // printf("M2 -=-=- OK!\r\n");
+        printf("Temperature: %lu\r\n", g_temperature_uint32);
         // } 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
@@ -48,3 +53,18 @@ void process_command(char *cmd) {
         printf("Invalid Command!\r\n");
     }
 }
+
+uint8_t calculate_crc(uint8_t package_header[3], uint8_t package_data[], size_t data_length) {
+    uint8_t crc = 0;
+
+    /* Calculate CRC for header */
+    for (int i = 1; i < 3; i++) {
+        crc += package_header[i];
+    }
+
+    for (size_t i = 0; i < data_length; i++) {
+        crc += package_data[i];
+    }
+
+    return (uint8_t)(crc & 0xFF);
+}

src/tmp112.c

@@ -0,0 +1,15 @@
+//
+// 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);
+    i2c_read_16bits(TMP112A_ADDR, 0x00, value);
+    raw_value = ((uint16_t) (value[0] << 4) | (value[1]>>4));
+    return (raw_value * 625);
+}