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_MINOR 1)
-set(VERSION_PATCH 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/LDC1612.c
+        ${CMAKE_SOURCE_DIR}/src/tmp112.c
-        ${CMAKE_SOURCE_DIR}/src/RS485.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/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/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

@@ -0,0 +1,91 @@
+//
+// 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 "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_ERROR_CONFIG               0x0000
+#define LC_STABILIZE_TIME_CH0              0X001E //30
+
+/******************************************************************************/
+
+#define COIL_RP_KOM              15.727
+#define COIL_L_UH                33
+#define COIL_C_PF                150
+#define COIL_Q_FACTOR            35.97
+
+/******************************************************************************/
+
+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);
+
+#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

@@ -35,15 +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);
-void iicSendData(void);
-void iicReceiveData(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/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/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

@@ -0,0 +1,440 @@
+//
+// 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) {
+    /* 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;
+                    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");
+                }
+
+            /* 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;
+}
+
+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;
+                        printf("i2c bus is busy in READ!\n");
+                    }
+                }
+            /* 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;
+                    printf("i2c master sends start signal timeout in READ!\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);
+                    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;
+                    printf("i2c master clears address flag timeout in READ!\n");
+                }
+                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;
+                        printf("i2c master wait data buffer is empty timeout in READ!\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) {
+                        timeout = 0;
+                        state = I2C_START;
+                        read_cycle = SET;
+                    } else {
+                        timeout = 0;
+                        state = I2C_START;
+                        read_cycle = RESET;
+                        printf("i2c master sends register address timeout in READ!\n");
+                    }
+                } 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;
+                            printf("i2c master sends data timeout in READ!\n");
+                        }
+                    }
+                    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;
+                    printf("i2c master sends stop signal timeout in READ!\n");
+                }
+                break;
+            default:
+                state = I2C_START;
+                read_cycle = 0;
+                i2c_timeout_flag = I2C_OK;
+                timeout = 0;
+                printf("i2c master sends start signal in READ.\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

@@ -9,81 +9,14 @@
 #include "gd32e23x.h"
 #include "systick.h"
 #include "gd32e23x_libopt.h"
-#include "RS485.h"
+#include "rs485.h"
-#include "LDC1612.h"
+#include "led.h"
+#include "i2c.h"
+#include "ldc1612.h"
+#include "tmp112.h"
 
-void led_config(void)
+uint32_t g_temperature_uint32;
-{
+uint32_t g_eddy_current_value_uint32;
-    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
@@ -91,74 +24,33 @@ void iicReceiveData(void)
     \param[out] none
     \retval     none
 */
-int main(void)
+int main(void) {
-{
     /* configure systick */
     systick_config();
-    RS485_config();
+    /* configure USART */
+    rs485_config();
+    /* configure LED */
     led_config();
-    I2C_config();
+    /* configure I2C */
+    i2c_gpio_config();
+    i2c_config();
 
-    // delay_ms(5000);
+    ldc1612_iic_get_sensor_infomation();
-    printf("\r\n");
+    /* configure LDC1612 */
-    printf("XLSW-3DP-LDC1612! V0.0.1\r\n");
+    ldc1612_single_ch0_config();
-    printf("\r\n");
-
-    // uint16_t data[3] = {0};
-
-    // I2C_scan();
-
-    delay_ms(1000);
-
-    // 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(500);
-
+        g_eddy_current_value_uint32 = 0;
-        delay_ms(1000);
+        g_temperature_uint32 = 0;
-        printf("OK!!!\r\n");
+        g_eddy_current_value_uint32 = ldc1612_get_raw_channel_result(CHANNEL_0);
-        // iicSendData();
+        g_temperature_uint32 = tmp112a_get_raw_channel_result();
-
-        // i2c_flag_clear(I2C0, I2C_FLAG_I2CBSY);
-
     }
 }
 
 /* retarget the C library printf function to the USART */
-int _write (int fd, char *pBuffer, int size)
+int _write(int fd, char *pBuffer, int size) {
-{
+    for (int i = 0; i < size; i++) {
-    for (int i = 0; i < size; i++)
-    {
         usart_data_transmit(USART0, (uint8_t) pBuffer[i]);
         while (RESET == usart_flag_get(USART0, USART_FLAG_TBE));
     }

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);
+}