recevice function

cmake/toolchain.cmake

@@ -94,9 +94,12 @@ set(TARGET_CFLAGS_HARDWARE "-mcpu=cortex-m23 -mfloat-abi=soft -mthumb -mthumb-in
 #set(CMAKE_C_FLAGS_DEBUG     "-DDEBUG=0 -O0 -g")
 #set(CMAKE_CXX_FLAGS_DEBUG   "-DDEBUG=0 -O0 -g")
 #set(CMAKE_ASM_FLAGS_DEBUG   "-DDEBUG=0 -O0 -g")
-set(CMAKE_C_FLAGS_DEBUG     "-DDEBUG=0 -Os -g")
+set(CMAKE_C_FLAGS_DEBUG     "-DDEBUG=0 -O2 -g")
-set(CMAKE_CXX_FLAGS_DEBUG   "-DDEBUG=0 -Os -g")
+set(CMAKE_CXX_FLAGS_DEBUG   "-DDEBUG=0 -O2 -g")
-set(CMAKE_ASM_FLAGS_DEBUG   "-DDEBUG=0 -Os -g")
+set(CMAKE_ASM_FLAGS_DEBUG   "-DDEBUG=0 -O2 -g")
+#set(CMAKE_C_FLAGS_DEBUG     "-DDEBUG=0 -Os -g")
+#set(CMAKE_CXX_FLAGS_DEBUG   "-DDEBUG=0 -Os -g")
+#set(CMAKE_ASM_FLAGS_DEBUG   "-DDEBUG=0 -Os -g")
 
 # RELEASE
 set(CMAKE_C_FLAGS_RELEASE        "-DNDEBUG -O3") #  -flto

inc/LDC1612.h

@@ -13,6 +13,8 @@
 #include <stdio.h>
 #include <stdlib.h>
 
+#define LDC1612_ADDR         (0x2B << 1)
+
 /*Register Rddr*/
 /***************************************************************************/
 #define CONVERTION_RESULT_REG_START             0X00
@@ -33,9 +35,6 @@
 
 /******************************************************************************/
 
-#define I2C_TIME_OUT    (uint16_t)(10000)
-#define LDC_I2C       I2C0
-#define I2C_SPEED 400000
 
 typedef enum {
     I2C_START = 0,
@@ -45,10 +44,7 @@ typedef enum {
     I2C_STOP
 } i2c_process_enum;
 
-#define I2C_OK          1
+#define I2C_SPEED 100000
-#define I2C_FAIL        0
-#define I2C_END         1
-
 #define RCU_IR_GPIO RCU_GPIOF
 #define RCU_I2C RCU_I2C0
 #define I2C_SCL_PORT GPIOF
@@ -57,32 +53,13 @@ typedef enum {
 #define I2C_SDA_PIN GPIO_PIN_0
 #define I2C_GPIO_AF GPIO_AF_1
 
-#define LDC1612_ADDR         (0x2B << 1)
+#define I2C_TIME_OUT    (uint16_t)(10000)
 
-// LDC1612 寄存器地址
+void I2C_config(void);
-#define RCOUNT0_ADDR          0x08
+void I2C_scan(void);
-#define SETTLECOUNT0_ADDR     0x10
+
-#define CLOCK_DIVIDERS0_ADDR  0x14
+int LDC1612_IIC_read_16bits(void);
-#define ERROR_CONFIG_ADDR     0x19
-#define MUX_CONFIG_ADDR       0x1B
-#define DRIVE_CURRENT0_ADDR   0x1E
-#define CONFIG_ADDR           0x1A
 
 
 
-void LDC1612_read_sensor_infomation(void);
-
-void LDC1612_I2CConfig(void);
-void LDC1612_Init(void);
-int LDC1612_read_reg(uint8_t device_address, uint8_t reg_address, uint8_t *data, uint16_t length);
-int i2c_write_reg(uint8_t device_address, uint8_t *data);
-
-uint8_t eeprom_byte_write_timeout(uint8_t device_address, uint8_t *data);
-
-void I2C_Scan(void);
-
-uint8_t IIC_read_16bit(uint8_t reg, uint16_t *value);
-
-int LDC_getID(void);
-
 #endif //LDC1612_H

inc/main.h

@@ -43,5 +43,7 @@ OF SUCH DAMAGE.
 #define LED_IRQ             TIMER16_IRQn
 
 void led_config(void);
+void iicSendData(void);
+void iicReceiveData(void);
 
 #endif /* MAIN_H */

openocd_gd32e230f4.cfg

@@ -1,5 +1,5 @@
 # 连接cmsis-dap（喝粥）
-; interface cmsis-dap
+interface cmsis-dap
 source [find interface/cmsis-dap.cfg]
 
 # 选择SWD
@@ -7,3 +7,8 @@ transport select swd
 
 # 加载gd32e23x.cfg
 source [find target/gd32e23x.cfg]
+
+; set CHIPNAME gd32e23x
+;
+; reset_config srst_only
+adapter speed 500

src/LDC1612.c

@@ -5,33 +5,8 @@
 #include "LDC1612.h"
 
 
-void LDC1612_read_sensor_infomation(void)
-{
-    uint16_t device_id;
-    uint8_t result;
 
-    // 读取设备ID
+void I2C_config(void) {
-    result = IIC_read_16bit(READ_DEVICE_ID, &device_id);
-
-    if (result == 0) {
-        printf("Device ID: 0x%04X\n", device_id);
-    } else {
-        printf("Failed to read Device ID\n");
-    }
-
-}
-
-
-
-
-
-/**
-  * @brief  This function configure the I2C peripheral & GPIO
-  * @param[in]  none
-  * @param[out] none
-  * @retval None
-  */
-void LDC1612_I2CConfig(void) {
     rcu_periph_clock_enable(RCU_IR_GPIO);
     rcu_periph_clock_enable(RCU_I2C);
 
@@ -44,357 +19,32 @@ void LDC1612_I2CConfig(void) {
     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(LDC_I2C, I2C_SPEED, I2C_DTCY_2);
+    i2c_clock_config(I2C0, I2C_SPEED, I2C_DTCY_2);
 
-    i2c_mode_addr_config(LDC_I2C, I2C_I2CMODE_ENABLE, I2C_ADDFORMAT_7BITS, LDC1612_ADDR);
+    // i2c_mode_addr_config(I2C0, I2C_I2CMODE_ENABLE, I2C_ADDFORMAT_7BITS, LDC1612_ADDR);
-    i2c_enable(LDC_I2C);
+    i2c_enable(I2C0);
-    i2c_ack_config(LDC_I2C, I2C_ACK_ENABLE);
+    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  向I2C设备寄存器写入数据
+ * @brief 扫描I2C总线，查找连接的设备
- * @param  device_address: 设备地址
+ *
- * @param  data: 要写入的数据
+ * 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。
- * @retval int: 0表示成功，-1表示超时
+ * 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。
  */
-int i2c_write_reg(uint8_t device_address, uint8_t *data)
+void I2C_scan(void) {
-{
-    uint32_t timeout = 0;
-    printf("debug tag- 0\r\n");
-    // 确保 I2C 总线空闲
-    while (i2c_flag_get(LDC_I2C, I2C_FLAG_I2CBSY) && (timeout < I2C_TIME_OUT))
-        timeout++;
-    if (timeout >= I2C_TIME_OUT) {
-        printf("debug tag- 1-\r\n");
-        return -1; // 超时返回错误
-    }
-    i2c_start_on_bus(LDC_I2C);
-    timeout = 0;
-    printf("debug tag- 1\r\n");
-
-    // 等待起始条件发送完成
-    while (!i2c_flag_get(LDC_I2C, I2C_FLAG_SBSEND) && (timeout < I2C_TIME_OUT))
-        timeout++;
-    if (timeout >= I2C_TIME_OUT) {
-        return -1; // 超时返回错误
-    }
-    i2c_master_addressing(LDC_I2C, device_address, I2C_TRANSMITTER);
-    timeout = 0;
-    printf("debug tag- 2\r\n");
-
-    // 等待地址发送完成
-    while (!i2c_flag_get(LDC_I2C, I2C_FLAG_ADDSEND) && (timeout < I2C_TIME_OUT))
-        timeout++;
-    if (timeout >= I2C_TIME_OUT) {
-        printf("debug tag- 3-\r\n");
-        return -1; // 超时返回错误
-    }
-    i2c_flag_clear(LDC_I2C, I2C_FLAG_ADDSEND);
-    timeout = 0;
-    printf("debug tag- 3\r\n");
-
-    // 发送寄存器地址和数据
-    for (int i = 0; i < 3; i++) {
-        while (!i2c_flag_get(LDC_I2C, I2C_FLAG_TBE) && (timeout < I2C_TIME_OUT))
-            timeout++;
-        if (timeout >= I2C_TIME_OUT) {
-            return -1; // 超时返回错误
-        }
-        i2c_data_transmit(LDC_I2C, data[i]);
-        printf("iic_value:%x\r\n", data[i]);
-        timeout = 0;
-    }
-    timeout = 0;
-
-    // 生成停止条件
-    while (!i2c_flag_get(LDC_I2C, I2C_FLAG_BTC) && (timeout < I2C_TIME_OUT))
-        timeout++;
-    if (timeout >= I2C_TIME_OUT) {
-        return -1; // 超时返回错误
-    }
-    i2c_stop_on_bus(LDC_I2C);
-    timeout = 0;
-
-    // 确保停止条件已发送完成
-    while (i2c_flag_get(LDC_I2C, I2C_FLAG_I2CBSY) && (timeout < I2C_TIME_OUT))
-        timeout++;
-    if (timeout >= I2C_TIME_OUT) {
-        return -1; // 超时返回错误
-    }
-
-    printf("test info\r\n");
-    return 0;
-}
-
-uint8_t eeprom_byte_write_timeout(uint8_t device_address, uint8_t *data)
-{
-    uint8_t state = I2C_START;
-    uint16_t timeout = 0;
-    uint8_t i2c_timeout_flag = 0;
-
-    /* enable acknowledge */
-    i2c_ack_config(LDC_I2C, 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(LDC_I2C, I2C_FLAG_I2CBSY) && (timeout < I2C_TIME_OUT)) {
-                timeout++;
-            }
-            if(timeout < I2C_TIME_OUT) {
-                i2c_start_on_bus(LDC_I2C);
-                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(LDC_I2C, I2C_FLAG_SBSEND)) && (timeout < I2C_TIME_OUT)) {
-                timeout++;
-            }
-            if(timeout < I2C_TIME_OUT) {
-                i2c_master_addressing(LDC_I2C, device_address, 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(LDC_I2C, I2C_FLAG_ADDSEND)) && (timeout < I2C_TIME_OUT)) {
-                timeout++;
-            }
-            if(timeout < I2C_TIME_OUT) {
-                i2c_flag_clear(LDC_I2C, 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(LDC_I2C, 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(LDC_I2C, data[0]);
-                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(LDC_I2C, I2C_FLAG_BTC)) && (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(LDC_I2C, data[1]);
-                timeout = 0;
-            } else {
-                timeout = 0;
-                state = I2C_START;
-                printf("i2c master sends data timeout in WRITE 1 BYTE!\n");
-            }
-            /* wait until BTC bit is set */
-            while((!i2c_flag_get(LDC_I2C, I2C_FLAG_BTC)) && (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(LDC_I2C, data[2]);
-                timeout = 0;
-            } else {
-                timeout = 0;
-                state = I2C_START;
-                printf("i2c master sends data timeout in WRITE 2 BYTE!\n");
-            }
-            /* wait until BTC bit is set */
-            while((!i2c_flag_get(LDC_I2C, 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(LDC_I2C);
-            /* i2c master sends STOP signal successfully */
-            while((I2C_CTL0(LDC_I2C) & 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;
-}
-
-void LDC1612_Init(void) {
-    uint8_t RCOUNT0_ALL[3]={RCOUNT0_ADDR,0x05,0x36};//csdn
-    uint8_t SETTLECOUNT0_ALL[3]={SETTLECOUNT0_ADDR,0x00,0x0a};
-    uint8_t CLOCK_DIVIDERS0_ALL[3]={CLOCK_DIVIDERS0_ADDR,0x10,0x02};
-    uint8_t ERROR_CONFIG_ALL[3]={ERROR_CONFIG_ADDR,0x00,0x00};
-    uint8_t MUX_CONFIG_ALL[3]={MUX_CONFIG_ADDR,0x82,0x0c};
-    uint8_t DRIVE_CURRENT0_ALL[3]={DRIVE_CURRENT0_ADDR,0x90,0x00};
-    uint8_t CONFIG_ALL[3]={CONFIG_ADDR,0x14,0x01};//csdn
-
-    // LDC1612_I2CConfig();
-
-    // int ret = i2c_write_reg(LDC1612_ADDR, RCOUNT0_ALL);
-    //
-    // printf("ret:%d\r\n",ret);
-    i2c_write_reg(LDC1612_ADDR, RCOUNT0_ALL);
-    // eeprom_byte_write_timeout(LDC1612_ADDR, SETTLECOUNT0_ALL);
-    delay_ms(100);
-    i2c_write_reg(LDC1612_ADDR, SETTLECOUNT0_ALL);
-    delay_ms(100);
-    // i2c_write_reg(LDC1612_ADDR, CLOCK_DIVIDERS0_ALL);
-    // delay_ms(100);
-    // i2c_write_reg(LDC1612_ADDR, ERROR_CONFIG_ALL);
-    // delay_ms(100);
-    // i2c_write_reg(LDC1612_ADDR, MUX_CONFIG_ALL);
-    // delay_ms(100);
-    // i2c_write_reg(LDC1612_ADDR, DRIVE_CURRENT0_ALL);
-    // delay_ms(100);
-    // i2c_write_reg(LDC1612_ADDR, CONFIG_ALL);
-}
-
-/**
- * @brief  从I2C设备寄存器读取数据
- * @param  device_address: 设备地址
- * @param  reg_address: 寄存器地址
- * @param  data: 存储读取数据的缓冲区
- * @param  length: 要读取的数据长度
- * @retval int: 0表示成功，-1表示超时
- */
-int LDC1612_read_reg(uint8_t device_address, uint8_t reg_address, uint8_t *data, uint16_t length)
-{
-    uint32_t timeout = 0;
-
-    i2c_ack_config(LDC_I2C, I2C_ACK_ENABLE);
-
-    // 判断总线是否忙
-    while (i2c_flag_get(LDC_I2C, I2C_FLAG_I2CBSY) && (timeout < I2C_TIME_OUT))
-        timeout++;
-    if (timeout >= I2C_TIME_OUT) {
-        return -1; // 超时返回错误
-    }
-    i2c_start_on_bus(LDC_I2C); //发送开始信号
-    timeout = 0;
-
-    // 等待起始条件发送完成
-    while (!i2c_flag_get(LDC_I2C, I2C_FLAG_SBSEND) && (timeout < I2C_TIME_OUT))
-        timeout++;
-    if (timeout >= I2C_TIME_OUT) {
-        return -1; // 超时返回错误
-    }
-    i2c_master_addressing(LDC_I2C, device_address, I2C_TRANSMITTER); //设置为发送模式
-    timeout = 0;
-
-    // 等待地址发送完成
-    while (!i2c_flag_get(LDC_I2C, I2C_FLAG_ADDSEND) && (timeout < I2C_TIME_OUT))
-        timeout++;
-    if (timeout >= I2C_TIME_OUT) {
-        return -1; // 超时返回错误
-    }
-    i2c_flag_clear(LDC_I2C, I2C_FLAG_ADDSEND);
-    timeout = 0;
-
-    // 开始接收数据
-    while (!i2c_flag_get(LDC_I2C, I2C_FLAG_TBE) && (timeout < I2C_TIME_OUT))
-        timeout++;
-    if (timeout >= I2C_TIME_OUT) {
-        return -1; // 超时返回错误
-    }
-    i2c_data_transmit(LDC_I2C, reg_address); //发送寄存器地址
-    timeout = 0;
-
-    // 生成重复起始条件
-    while (!i2c_flag_get(LDC_I2C, I2C_FLAG_BTC) && (timeout < I2C_TIME_OUT))
-        timeout++;
-    if (timeout >= I2C_TIME_OUT) {
-        return -1; // 超时返回错误
-    }
-    i2c_start_on_bus(LDC_I2C);
-    timeout = 0;
-
-    // 等待重复起始条件发送完成
-    while (!i2c_flag_get(LDC_I2C, I2C_FLAG_SBSEND) && (timeout < I2C_TIME_OUT))
-        timeout++;
-    if (timeout >= I2C_TIME_OUT) {
-        return -1; // 超时返回错误
-    }
-    i2c_master_addressing(LDC_I2C, device_address, I2C_RECEIVER);
-    timeout = 0;
-
-    // 等待地址发送完成
-    while (!i2c_flag_get(LDC_I2C, I2C_FLAG_ADDSEND) && (timeout < I2C_TIME_OUT))
-        timeout++;
-    if (timeout >= I2C_TIME_OUT) {
-        return -1; // 超时返回错误
-    }
-    i2c_flag_clear(LDC_I2C, I2C_FLAG_ADDSEND);
-    timeout = 0;
-
-// 读取数据
-for (uint16_t i = 0; i < length; i++) {
-    while (!i2c_flag_get(LDC_I2C, I2C_FLAG_RBNE) && (timeout < I2C_TIME_OUT))
-        timeout++;
-    if (timeout >= I2C_TIME_OUT) {
-        return -1; // 超时返回错误
-    }
-    if (i == length - 1) {
-        i2c_ack_config(LDC_I2C, I2C_ACK_DISABLE); // 禁用ACK
-        i2c_stop_on_bus(LDC_I2C); // 生成停止条件
-    }
-    data[i] = i2c_data_receive(LDC_I2C);
-    timeout = 0;
-}
-i2c_ack_config(LDC_I2C, I2C_ACK_ENABLE); // 重新启用ACK
-
-    // 生成停止条件
-    i2c_stop_on_bus(LDC_I2C);
-    timeout = 0;
-
-    return 0;
-}
-
-void I2C_Scan(void) {
     uint32_t timeout;
     uint8_t address;
     int found_devices = 0;
@@ -405,37 +55,38 @@ void I2C_Scan(void) {
         timeout = 0;
 
         // 生成起始条件
-        while (i2c_flag_get(LDC_I2C, I2C_FLAG_I2CBSY) && (timeout < I2C_TIME_OUT))
+        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(LDC_I2C);
+        i2c_start_on_bus(I2C0);
         timeout = 0;
 
         // 等待起始条件发送完成
-        while (!i2c_flag_get(LDC_I2C, I2C_FLAG_SBSEND) && (timeout < I2C_TIME_OUT))
+        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(LDC_I2C, address << 1, I2C_TRANSMITTER);
+        i2c_master_addressing(I2C0, (address << 1), I2C_TRANSMITTER);
         timeout = 0;
 
         // 等待地址发送完成
-        while (!i2c_flag_get(LDC_I2C, I2C_FLAG_ADDSEND) && (timeout < I2C_TIME_OUT))
+        while (!i2c_flag_get(I2C0, I2C_FLAG_ADDSEND) && (timeout < I2C_TIME_OUT))
             timeout++;
         if (timeout < I2C_TIME_OUT) {
-            i2c_flag_clear(LDC_I2C, I2C_FLAG_ADDSEND);
+            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(LDC_I2C);
+        i2c_stop_on_bus(I2C0);
+
         timeout = 0;
 
-        while (i2c_flag_get(LDC_I2C, I2C_FLAG_STPDET) && (timeout < I2C_TIME_OUT))
+        while (i2c_flag_get(I2C0, I2C_FLAG_STPDET) && (timeout < I2C_TIME_OUT))
             timeout++;
     }
 
@@ -446,80 +97,9 @@ void I2C_Scan(void) {
     }
 }
 
-
+int LDC1612_IIC_read_16bits(void) {
-
-/**
- * @brief  读取16位I2C数据，带有超时机制
- * @param  reg: 要读取的寄存器地址
- * @param  value: 存储读取数据的指针
- * @retval 0: 成功，1: 超时
- */
-uint8_t IIC_read_16bit(uint8_t reg, uint16_t *value) {
-    uint32_t timeout = 0;
-
-    // 发送启动信号
-    i2c_start_on_bus(I2C0);
-    timeout = 0;
-    while (!i2c_flag_get(I2C0, I2C_FLAG_SBSEND)) {
-        if ((timeout++) > I2C_TIME_OUT) return 1;  // 超时
-    }
-
-    // 发送从设备地址和写信号
-    i2c_master_addressing(I2C0, LDC1612_ADDR, I2C_TRANSMITTER);
-    timeout = 0;
-    while (!i2c_flag_get(I2C0, I2C_FLAG_ADDSEND)) {
-        if ((timeout++) > I2C_TIME_OUT) return 1;  // 超时
-    }
-    i2c_flag_clear(I2C0, I2C_FLAG_ADDSEND);
-
-    // 发送寄存器地址
-    i2c_data_transmit(I2C0, reg);
-    timeout = 0;
-    while (!i2c_flag_get(I2C0, I2C_FLAG_TBE)) {
-        if ((timeout++) > I2C_TIME_OUT) return 1;  // 超时
-    }
-
-    // 重新启动信号
-    i2c_start_on_bus(I2C0);
-    timeout = 0;
-    while (!i2c_flag_get(I2C0, I2C_FLAG_SBSEND)) {
-        if ((timeout++) > I2C_TIME_OUT) return 1;  // 超时
-    }
-
-    // 发送从设备地址和读信号
-    i2c_master_addressing(I2C0, LDC1612_ADDR, I2C_RECEIVER);
-    timeout = 0;
-    while (!i2c_flag_get(I2C0, I2C_FLAG_ADDSEND)) {
-        if ((timeout++) > I2C_TIME_OUT) return 1;  // 超时
-    }
-    i2c_flag_clear(I2C0, I2C_FLAG_ADDSEND);
-
-    // 读取数据
-    timeout = 0;
-    while (!i2c_flag_get(I2C0, I2C_FLAG_RBNE)) {
-        if ((timeout++) > I2C_TIME_OUT) return 1;  // 超时
-    }
-    *value = i2c_data_receive(I2C0) << 8;  // 读取高8位
-
-    timeout = 0;
-    while (!i2c_flag_get(I2C0, I2C_FLAG_RBNE)) {
-        if ((timeout++) > I2C_TIME_OUT) return 1;  // 超时
-    }
-    *value |= i2c_data_receive(I2C0);  // 读取低8位
-
-    // 发送停止信号
-    i2c_stop_on_bus(I2C0);
-    timeout = 0;
-    while (I2C_CTL0(I2C0) & I2C_CTL0_STOP) {
-        if ((timeout++) > I2C_TIME_OUT) return 1;  // 超时
-    }
-
-    return 0;  // 成功
-}
-
-
-int LDC_getID(void) {
     uint8_t data[2] = {0};
+    uint16_t raw_temp = 0;
     uint16_t timeout = 0;
 
     i2c_ack_config(I2C0, I2C_ACK_ENABLE);
@@ -531,16 +111,16 @@ int LDC_getID(void) {
         timeout = 0;
     } else {
         printf("err\r\n");
-        return -4101; // 超时返回错误
+        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, (0x2B << 1), I2C_TRANSMITTER);
+        i2c_master_addressing(I2C0, LDC1612_ADDR, I2C_TRANSMITTER);
         timeout = 0;
     } else {
-        return -4102; // 超时返回错误
+        return -2; // 超时返回错误
     }
 
     while (!i2c_flag_get(I2C0, I2C_FLAG_ADDSEND) && (timeout < I2C_TIME_OUT))
@@ -549,17 +129,17 @@ int LDC_getID(void) {
         i2c_flag_clear(I2C0, I2C_FLAG_ADDSEND);
         timeout = 0;
     } else {
-        return -4103; // 超时返回错误
+        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, 0x7f);
+        i2c_data_transmit(I2C0, READ_DEVICE_ID);
         timeout = 0;
-        // i2c_start_on_bus(IR_I2C);
+        // i2c_start_on_bus(I2C0);
     } else {
-        return -4104; // 超时返回错误
+        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
@@ -568,17 +148,17 @@ int LDC_getID(void) {
         i2c_start_on_bus(I2C0);
         timeout = 0;
     } else {
-        return -4105; // 超时返回错误
+        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, (0x2B << 1), I2C_RECEIVER);
+        i2c_master_addressing(I2C0, LDC1612_ADDR, I2C_RECEIVER);
         timeout = 0;
     } else {
-        return -4106; // 超时返回错误
+        return -6; // 超时返回错误
     }
 
     while (!i2c_flag_get(I2C0, I2C_FLAG_ADDSEND) && (timeout < I2C_TIME_OUT))
@@ -587,7 +167,7 @@ int LDC_getID(void) {
         i2c_flag_clear(I2C0, I2C_FLAG_ADDSEND);
         timeout = 0;
     } else {
-        return -4107; // 超时返回错误
+        return -7; // 超时返回错误
     }
 
     // 读取第一个字节的数据
@@ -598,9 +178,10 @@ int LDC_getID(void) {
         data[0] = i2c_data_receive(I2C0);
         timeout = 0;
     } else {
-        return -4108; // 超时返回错误
+        return -8; // 超时返回错误
     }
-    i2c_ack_config(I2C0, I2C_ACK_DISABLE);
+
+    // 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)) {
@@ -610,12 +191,11 @@ int LDC_getID(void) {
         data[1] = i2c_data_receive(I2C0);
         timeout = 0;
     } else {
-        return -4109; // 超时返回错误
+        return -9; // 超时返回错误
     }
 
     i2c_stop_on_bus(I2C0);
 
-    printf("device id:%x %x\r\n",data[0],data[1]);
+    printf("device id = %x\r\n", (data[0] <<8 | data[1]));
-
     return 0;
 }

src/gd32e23x_it.c

@@ -99,26 +99,6 @@ void SysTick_Handler(void)
 {
 }
 
-void TIMER13_IRQHandler(void)
-{
-    if (timer_interrupt_flag_get(TIMER13, TIMER_INT_FLAG_UP) == SET)
-    {
-        timer_interrupt_flag_clear(TIMER13, TIMER_INT_FLAG_UP);
-        static uint8_t led_status = 0;
-        if (led_status)
-        {
-            //! turn on led & reconfig timer13 period to 19000(1900ms)
-            gpio_bit_write(GPIOB, GPIO_PIN_1, RESET);
-            timer_autoreload_value_config(TIMER13, 19200);
-        } else {
-            //! turn off led & reconfig timer13 period to 1000(100ms)
-            gpio_bit_write(GPIOB, GPIO_PIN_1, SET);
-            timer_autoreload_value_config(TIMER13, 800);
-        }
-        led_status = !led_status;
-    }
-}
-
 /**
   * @brief  This function handles TIMER5 interrupt request.
   * @param[in]  none

src/main.c

@@ -40,6 +40,51 @@ void led_config(void)
     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
     \param[in]  none
@@ -52,30 +97,60 @@ int main(void)
     systick_config();
     RS485_config();
     led_config();
+    I2C_config();
 
     // delay_ms(5000);
     printf("\r\n");
     printf("XLSW-3DP-LDC1612! V0.0.1\r\n");
     printf("\r\n");
 
-    LDC1612_I2CConfig();
+    // uint16_t data[3] = {0};
-    // LDC1612_Init();
+
-    // I2C_Scan();
+    // I2C_scan();
-    LDC1612_read_sensor_infomation();
+
+    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){
-        // LDC1612_read_reg(LDC1612_ADDR, 0x7f, data, 2);
+
-        // printf("msb:%x %x\r\n",data[0],data[1]);
+
-        // LDC1612_read_reg(LDC1612_ADDR, 0x01, data, 2);
+        delay_ms(1000);
-    // printf("msb:%x %x\r\n",data[0],data[1]);
+        printf("OK!!!\r\n");
-    //     printf("hello world!\r\n");
+        // iicSendData();
-        // LDC1612_Init();
+
-        // LDC1612_read_reg(LDC1612_ADDR, 0x01, data, 2);
+        // i2c_flag_clear(I2C0, I2C_FLAG_I2CBSY);
-    delay_ms(1000);
+
     }
 }