diff --git a/inc/LDC1612.h b/inc/LDC1612.h
index 0b0bb49..96172f0 100644
--- a/inc/LDC1612.h
+++ b/inc/LDC1612.h
@@ -14,6 +14,7 @@
 #include <stdlib.h>
 
 #define LDC1612_ADDR         (0x2B << 1)
+#define TMP112A_ADDR         (0x49 << 1)
 
 /*Register Rddr*/
 /***************************************************************************/
@@ -57,9 +58,9 @@ typedef enum {
 
 void I2C_config(void);
 void I2C_scan(void);
-uint8_t IIC_read_16bit(uint8_t reg, uint16_t *value);
-void LDC1612_read_sensor_infomation(void);
-
+// uint8_t IIC_read_16bit(uint8_t reg, uint16_t *value);
+// void LDC1612_read_sensor_infomation(void);
 
+uint32_t TMP112A_ReadTemperature(void);
 
 #endif //LDC1612_H
diff --git a/src/LDC1612.c b/src/LDC1612.c
index 075dec9..d1ceb2c 100644
--- a/src/LDC1612.c
+++ b/src/LDC1612.c
@@ -21,21 +21,21 @@ void I2C_config(void) {
 
     i2c_clock_config(I2C0, I2C_SPEED, I2C_DTCY_2);
 
-    // i2c_mode_addr_config(I2C0, I2C_I2CMODE_ENABLE, I2C_ADDFORMAT_7BITS, LDC1612_ADDR);
+    i2c_mode_addr_config(I2C0, I2C_I2CMODE_ENABLE, I2C_ADDFORMAT_7BITS, 0x72);
     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
-
-}
+// 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
+//
+// }
 
 
 void I2C_scan(void) {
@@ -91,95 +91,112 @@ void I2C_scan(void) {
     }
 }
 
+uint32_t TMP112A_ReadTemperature(void) {
+    uint8_t data[2] = {0};
+    uint16_t raw_temp = 0;
+    uint16_t timeout = 0;
+    uint32_t temperature = 0;
 
-/**
- * @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;
+    i2c_ack_config(I2C0, I2C_ACK_ENABLE);
 
-    // 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
+    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
     }
 
-    // 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 2;  // 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 3;  // 超时
+    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, TMP112A_ADDR, I2C_TRANSMITTER);
+        timeout = 0;
+    } else {
+        return -1; // 超时返回错误
     }
 
-    // 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 4;  // 超时
+    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 -1; // 超时返回错误
     }
 
-    // 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 5;  // 超时
+    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, 0x00);
+        timeout = 0;
+        // i2c_start_on_bus(I2C0);
+    } else {
+        return -1; // 超时返回错误
     }
-    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 6;  // 超时
+    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 -1; // 超时返回错误
     }
-    *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 7;  // 超时
+    while (!i2c_flag_get(I2C0, I2C_FLAG_SBSEND) && (timeout < I2C_TIME_OUT)) {
+        timeout++;
+    }
+    if (timeout < I2C_TIME_OUT) {
+        i2c_master_addressing(I2C0, TMP112A_ADDR, I2C_RECEIVER);
+        timeout = 0;
+    } else {
+        return -1; // 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 -1; // 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 -1; // 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 -1; // 超时返回错误
     }
-    *value |= i2c_data_receive(I2C0);  // 读取低8位
 
-    // 发送停止信号
     i2c_stop_on_bus(I2C0);
-    timeout = 0;
 
-    return 0;  // 成功
+    // printf("data[0]: %x, data[1]: %x\r\n", data[0], data[1]);
+    raw_temp = ((uint16_t) (data[0] << 4) | (data[1]>>4));
+    // printf("raw_temp: %x\r\n", raw_temp);
+    // printf("raw_temp(dec): %d\r\n", raw_temp);
+    temperature = raw_temp * 625;
+    // printf("temperature: %d\r\n", temperature);
+
+    return temperature;
 }
-
-void LDC1612_read_sensor_infomation(void)
-{
-    uint16_t device_id;
-    uint16_t manufacturer_id;
-    uint8_t result;
-
-    // 读取设备ID
-    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");
-        printf("result: %d\n", result);
-    }
-
-    result = IIC_read_16bit(READ_MANUFACTURER_ID, &manufacturer_id);
-
-    if (result == 0) {
-        printf("manufacturer  ID: 0x%04X\n", manufacturer_id);
-    } else {
-        printf("Failed to read manufacturer ID\n");
-        printf("result: %d\n", result);
-    }
-}
\ No newline at end of file
diff --git a/src/RS485.c b/src/RS485.c
index 2db76b7..557f9c9 100644
--- a/src/RS485.c
+++ b/src/RS485.c
@@ -4,6 +4,8 @@
 
 #include "RS485.h"
 
+extern uint32_t g_temperature_uint32;
+
 void RS485_config(void) {
     rcu_periph_clock_enable(RS485_GPIO_RCU);
     rcu_periph_clock_enable(RS485_RCU);
@@ -35,7 +37,8 @@ void process_command(char *cmd) {
     if (strncmp(cmd, "M1", 2) == 0) {
         printf("M1 -=-=- OK!\r\n");
     } else if (strncmp(cmd, "M2", 2) == 0) {
-        printf("M2 -=-=- OK!\r\n");
+        // 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
diff --git a/src/gd32e23x_it.c b/src/gd32e23x_it.c
index 12b5a1e..9a85154 100644
--- a/src/gd32e23x_it.c
+++ b/src/gd32e23x_it.c
@@ -36,6 +36,10 @@ OF SUCH DAMAGE.
 #include "main.h"
 #include "systick.h"
 #include "LDC1612.h"
+#include "RS485.h"
+
+char rx_buffer[RX_BUFFER_SIZE];
+uint8_t rx_index = 0;
 
 /*!
     \brief      this function handles NMI exception
@@ -140,4 +144,24 @@ 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
+        }
+    }
 }
\ No newline at end of file
diff --git a/src/main.c b/src/main.c
index 7c816e7..2b9796b 100644
--- a/src/main.c
+++ b/src/main.c
@@ -12,6 +12,8 @@
 #include "RS485.h"
 #include "LDC1612.h"
 
+uint32_t g_temperature_uint32;
+
 void led_config(void)
 {
     rcu_periph_clock_enable(LED_RCU);
@@ -59,14 +61,11 @@ int main(void)
     printf("XLSW-3DP-LDC1612! V0.0.1\r\n");
     printf("\r\n");
 
-    I2C_scan();
-    LDC1612_read_sensor_infomation();
-
-
-
-
+    // I2C_scan();
 
     while(1){
+        g_temperature_uint32 = TMP112A_ReadTemperature();
+        delay_ms(500);
     }
 }