diff --git a/CMakeLists.txt b/CMakeLists.txt
index f8d182c..ea3f22e 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -20,7 +20,7 @@ set(TARGET_C_SRC
         ${CMAKE_SOURCE_DIR}/src/systick.c
         ${CMAKE_SOURCE_DIR}/src/ultrasonic_driver.c
         ${CMAKE_SOURCE_DIR}/src/mlx90614.c
-        ${CMAKE_SOURCE_DIR}/src/gd32e23x_hw_i2c.c
+#        ${CMAKE_SOURCE_DIR}/src/gd32e23x_hw_i2c.c
 )
 
 add_executable(xlsw_3dp_ultrasonic_300K ${TARGET_C_SRC})
diff --git a/inc/mlx90614.h b/inc/mlx90614.h
index cd02d45..b0136e7 100644
--- a/inc/mlx90614.h
+++ b/inc/mlx90614.h
@@ -5,7 +5,10 @@
 #ifndef MLX90614_H
 #define MLX90614_H
 
-#define I2C_EVENT_MASTER_MODE_SELECT          ((uint32_t)(I2C_FLAG_I2CBSY | I2C_FLAG_MASTER | I2C_FLAG_RBNE))
+// #define I2C_EVENT_MASTER_MODE_SELECT          ((uint32_t)(I2C_FLAG_I2CBSY | I2C_FLAG_MASTER | I2C_FLAG_RBNE))
+#define SLAVE_ADDR         (0x5A << 1)
+#define REG_ADDR_OBJ_TEMP  0x07
+#define REG_ADDR_AMB_TEMP  0x06
 
 void i2c_config(void);
 int read_ir_mlx90614(void);
diff --git a/src/main.c b/src/main.c
index 5b4f33a..160ad2c 100644
--- a/src/main.c
+++ b/src/main.c
@@ -55,6 +55,8 @@ int main(void)
         const char* result = (capture_value <= CAPTURE_VALUE_MAX) ? "Distance: %d\n" : "Over Range\n";
         distance_uint16 = calculate_distance(capture_value);
         printf(result, distance_uint16);
+
+        printf("Temp:%d", read_ir_mlx90614());
     }
 }
 
diff --git a/src/mlx90614.c b/src/mlx90614.c
index 96ae00b..67b5898 100644
--- a/src/mlx90614.c
+++ b/src/mlx90614.c
@@ -9,7 +9,7 @@
 
 void i2c_config(void) {
     rcu_periph_clock_enable(RCU_I2C0);
-    rcu_periph_clock_enable(GPIOF);
+    rcu_periph_clock_enable(RCU_GPIOF);
 
     gpio_af_set(GPIOF, GPIO_AF_1, GPIO_PIN_0 | GPIO_PIN_1);
     gpio_output_options_set(GPIOF, GPIO_OTYPE_OD, GPIO_OSPEED_50MHZ, GPIO_PIN_0 | GPIO_PIN_1);
@@ -27,6 +27,7 @@ int read_ir_mlx90614(void) {
     uint8_t Data[5];
     int inttemp_ir = 0;
     uint32_t TIMEOUT = 0;
+    // while(TIMEOUT<10000&&I2C_GetFlagStatus(I2C1,I2C_FLAG_BUSY))
     while (TIMEOUT < 10000 && i2c_flag_get(I2C0, I2C_FLAG_I2CBSY))
         TIMEOUT++;
     if (TIMEOUT >= 10000) {
@@ -37,7 +38,17 @@ int read_ir_mlx90614(void) {
     // I2C_GenerateSTART(I2C0, ENABLE);
     i2c_start_on_bus(I2C0);
     // while (TIMEOUT < 10000 && !I2C_CheckEvent(I2C0, I2C_EVENT_MASTER_MODE_SELECT))
-    while (TIMEOUT < 10000 && !i2c_flag_get(I2C0, I2C_EVENT_MASTER_MODE_SELECT))
+    /* 等待发送模式
+     * I2C_EVENT_MASTER_MODE_SELECT --> BUSY, MSL and SB flags
+     *   ||
+     * !i2c_flag_get(I2C0, I2C_FLAG_I2CBSY) &&
+     * !i2c_flag_get(I2C0, I2C_FLAG_MASTER) &&
+     * !i2c_flag_get(I2C0, I2C_FLAG_SBSEND)
+     */
+    while (TIMEOUT < 10000
+           && !i2c_flag_get(I2C0, I2C_FLAG_I2CBSY)
+           && !i2c_flag_get(I2C0, I2C_FLAG_MASTER)
+           && !i2c_flag_get(I2C0, I2C_FLAG_SBSEND))
         TIMEOUT++;
     if (TIMEOUT >= 10000) {
         //printf("ERROR1\r\n");
@@ -46,27 +57,64 @@ int read_ir_mlx90614(void) {
     //	I2C_AcknowledgeConfig(I2C0,DISABLE);
     TIMEOUT = 0;
     // I2C_Send7bitAddress(I2C0, 0XB4, I2C_Direction_Transmitter);
-    i2c_master_addressing(I2C0, 0XB4, I2C_TRANSMITTER);
+    i2c_master_addressing(I2C0, SLAVE_ADDR, I2C_TRANSMITTER);
     // while (TIMEOUT < 10000 && !I2C_CheckEvent(I2C0, I2C_EVENT_MASTER_TRANSMITTER_MODE_SELECTED))
-    while (TIMEOUT < 10000 && !i2c_flag_get(I2C0, I2C_FLAG_TR))
+    /* 等待发送地址完成
+     * I2C_EVENT_MASTER_TRANSMITTER_MODE_SELECTED --> BUSY, MSL, ADDR, TXE and TRA flags
+     *   ||
+     * !i2c_flag_get(I2C0, I2C_FLAG_I2CBSY) &&
+     * !i2c_flag_get(I2C0, I2C_FLAG_MASTER) &&
+     * !i2c_flag_get(I2C0, I2C_FLAG_ADDSEND) &&
+     * !i2c_flag_get(I2C0, I2C_FLAG_TBE) &&
+     * !i2c_flag_get(I2C0, I2C_FLAG_TR)
+     */
+    while (TIMEOUT < 10000 &&
+           !i2c_flag_get(I2C0, I2C_FLAG_I2CBSY) &&
+           !i2c_flag_get(I2C0, I2C_FLAG_MASTER) &&
+           !i2c_flag_get(I2C0, I2C_FLAG_ADDSEND) &&
+           !i2c_flag_get(I2C0, I2C_FLAG_TBE) &&
+           !i2c_flag_get(I2C0, I2C_FLAG_TR))
         TIMEOUT++;
     if (TIMEOUT >= 10000) {
         printf("ERROR2\r\n");
         return -410;
     }
-    I2C_SendData(I2C0, 0x07);
+    // I2C_SendData(I2C0, 0x07);
+    i2c_data_transmit(I2C0, REG_ADDR_OBJ_TEMP);
 
     TIMEOUT = 0;
-    I2C_GenerateSTART(I2C0, ENABLE);
-    while (TIMEOUT < 10000 && !I2C_CheckEvent(I2C0, I2C_EVENT_MASTER_MODE_SELECT))
+    // I2C_GenerateSTART(I2C0, ENABLE);
+    i2c_start_on_bus(I2C0);
+    // while (TIMEOUT < 10000 && !I2C_CheckEvent(I2C0, I2C_EVENT_MASTER_MODE_SELECT))
+    /* 等待发送模式
+     * I2C_EVENT_MASTER_MODE_SELECT --> BUSY, MSL and SB flags
+     *   ||
+     * !i2c_flag_get(I2C0, I2C_FLAG_I2CBSY) &&
+     * !i2c_flag_get(I2C0, I2C_FLAG_MASTER) &&
+     * !i2c_flag_get(I2C0, I2C_FLAG_SBSEND)
+     */
+    while (TIMEOUT < 10000 && !i2c_flag_get(I2C0, I2C_FLAG_I2CBSY)
+           && !i2c_flag_get(I2C0, I2C_FLAG_MASTER)
+           && !i2c_flag_get(I2C0, I2C_FLAG_SBSEND))
         TIMEOUT++;
     if (TIMEOUT >= 10000) {
         //printf("ERROR3\r\n");
         return -410;
     }
     TIMEOUT = 0;
-    I2C_Send7bitAddress(I2C0, 0XB4, I2C_Direction_Receiver);
-    while (TIMEOUT < 10000 && !I2C_CheckEvent(I2C0, I2C_EVENT_MASTER_BYTE_RECEIVED))
+    // I2C_Send7bitAddress(I2C0, 0XB4, I2C_Direction_Receiver);
+    i2c_master_addressing(I2C0, SLAVE_ADDR, I2C_RECEIVER);
+    // while (TIMEOUT < 10000 && !I2C_CheckEvent(I2C0, I2C_EVENT_MASTER_BYTE_RECEIVED))
+    /* 等待接收完成
+     * I2C_EVENT_MASTER_BYTE_RECEIVED --> BUSY, MSL, RXNE flags
+     *   ||
+     * !i2c_flag_get(I2C0, I2C_FLAG_I2CBSY) &&
+     * !i2c_flag_get(I2C0, I2C_FLAG_MASTER) &&
+     * !i2c_flag_get(I2C0, I2C_FLAG_RBNE)
+     */
+    while (TIMEOUT < 10000 && !i2c_flag_get(I2C0, I2C_FLAG_I2CBSY)
+           && !i2c_flag_get(I2C0, I2C_FLAG_MASTER)
+           && !i2c_flag_get(I2C0, I2C_FLAG_RBNE))
         TIMEOUT++;
     if (TIMEOUT >= 10000) {
         //printf("ERROR4\r\n");
@@ -74,8 +122,19 @@ int read_ir_mlx90614(void) {
     }
     //I2C_AcknowledgeConfig(I2C0,DISABLE);
     TIMEOUT = 0;
-    Data[0] = I2C_ReceiveData(I2C0);
-    while (TIMEOUT < 10000 && !I2C_CheckEvent(I2C0, I2C_EVENT_MASTER_BYTE_RECEIVED))
+    // Data[0] = I2C_ReceiveData(I2C0);
+    Data[0] = i2c_data_receive(I2C0);
+    // while (TIMEOUT < 10000 && !I2C_CheckEvent(I2C0, I2C_EVENT_MASTER_BYTE_RECEIVED))
+    /* 等待接收完成
+     * I2C_EVENT_MASTER_BYTE_RECEIVED --> BUSY, MSL, RXNE flags
+     *   ||
+     * !i2c_flag_get(I2C0, I2C_FLAG_I2CBSY) &&
+     * !i2c_flag_get(I2C0, I2C_FLAG_MASTER) &&
+     * !i2c_flag_get(I2C0, I2C_FLAG_RBNE)
+     */
+    while (TIMEOUT < 10000 && !i2c_flag_get(I2C0, I2C_FLAG_I2CBSY)
+           && !i2c_flag_get(I2C0, I2C_FLAG_MASTER)
+           && !i2c_flag_get(I2C0, I2C_FLAG_RBNE))
         TIMEOUT++;
     if (TIMEOUT >= 10000) {
         //printf("ERROR5\r\n");
@@ -83,8 +142,19 @@ int read_ir_mlx90614(void) {
     }
 
     TIMEOUT = 0;
-    Data[1] = I2C_ReceiveData(I2C0);
-    while (TIMEOUT < 10000 && !I2C_CheckEvent(I2C0, I2C_EVENT_MASTER_BYTE_RECEIVED))
+    // Data[1] = I2C_ReceiveData(I2C0);
+    Data[1] = i2c_data_receive(I2C0);
+    // while (TIMEOUT < 10000 && !I2C_CheckEvent(I2C0, I2C_EVENT_MASTER_BYTE_RECEIVED))
+    /* 等待接收完成
+     * I2C_EVENT_MASTER_BYTE_RECEIVED --> BUSY, MSL, RXNE flags
+     *   ||
+     * !i2c_flag_get(I2C0, I2C_FLAG_I2CBSY) &&
+     * !i2c_flag_get(I2C0, I2C_FLAG_MASTER) &&
+     * !i2c_flag_get(I2C0, I2C_FLAG_RBNE)
+     */
+    while (TIMEOUT < 10000 && !i2c_flag_get(I2C0, I2C_FLAG_I2CBSY)
+           && !i2c_flag_get(I2C0, I2C_FLAG_MASTER)
+           && !i2c_flag_get(I2C0, I2C_FLAG_RBNE))
         TIMEOUT++;
     if (TIMEOUT >= 10000) {
         //printf("ERROR6\r\n");
@@ -92,8 +162,19 @@ int read_ir_mlx90614(void) {
     }
 
     TIMEOUT = 0;
-    Data[2] = I2C_ReceiveData(I2C0);
-    while (TIMEOUT < 10000 && !I2C_CheckEvent(I2C0, I2C_EVENT_MASTER_BYTE_RECEIVED))
+    // Data[2] = I2C_ReceiveData(I2C0);
+    Data[2] = i2c_data_receive(I2C0);
+    // while (TIMEOUT < 10000 && !I2C_CheckEvent(I2C0, I2C_EVENT_MASTER_BYTE_RECEIVED))
+    /* 等待接收完成
+     * I2C_EVENT_MASTER_BYTE_RECEIVED --> BUSY, MSL, RXNE flags
+     *   ||
+     * !i2c_flag_get(I2C0, I2C_FLAG_I2CBSY) &&
+     * !i2c_flag_get(I2C0, I2C_FLAG_MASTER) &&
+     * !i2c_flag_get(I2C0, I2C_FLAG_RBNE)
+     */
+    while (TIMEOUT < 10000 && !i2c_flag_get(I2C0, I2C_FLAG_I2CBSY)
+           && !i2c_flag_get(I2C0, I2C_FLAG_MASTER)
+           && !i2c_flag_get(I2C0, I2C_FLAG_RBNE))
         TIMEOUT++;
     if (TIMEOUT >= 10000) {
         //printf("ERROR7\r\n");
@@ -101,9 +182,21 @@ int read_ir_mlx90614(void) {
     }
 
 
-    I2C_AcknowledgeConfig(I2C0, DISABLE);
-    Data[3] = I2C_ReceiveData(I2C0);
-    while (TIMEOUT < 10000 && !I2C_CheckEvent(I2C0, I2C_EVENT_MASTER_BYTE_RECEIVED))
+    // I2C_AcknowledgeConfig(I2C0, DISABLE);
+    i2c_ack_config(I2C0, I2C_ACK_DISABLE);
+    // Data[3] = I2C_ReceiveData(I2C0);
+    Data[3] = i2c_data_receive(I2C0);
+    // while (TIMEOUT < 10000 && !I2C_CheckEvent(I2C0, I2C_EVENT_MASTER_BYTE_RECEIVED))
+    /* 等待接收完成
+     * I2C_EVENT_MASTER_BYTE_RECEIVED --> BUSY, MSL, RXNE flags
+     *   ||
+     * !i2c_flag_get(I2C0, I2C_FLAG_I2CBSY) &&
+     * !i2c_flag_get(I2C0, I2C_FLAG_MASTER) &&
+     * !i2c_flag_get(I2C0, I2C_FLAG_RBNE)
+     */
+    while (TIMEOUT < 10000 && !i2c_flag_get(I2C0, I2C_FLAG_I2CBSY)
+           && !i2c_flag_get(I2C0, I2C_FLAG_MASTER)
+           && !i2c_flag_get(I2C0, I2C_FLAG_RBNE))
         TIMEOUT++;
     if (TIMEOUT >= 10000) {
         //printf("ERROR11\r\n");
@@ -111,10 +204,13 @@ int read_ir_mlx90614(void) {
     }
 
 
-    I2C_GenerateSTOP(I2C0, ENABLE);
-    I2C_AcknowledgeConfig(I2C0, ENABLE);
+    // I2C_GenerateSTOP(I2C0, ENABLE);
+    i2c_stop_on_bus(I2C0);
+    // I2C_AcknowledgeConfig(I2C0, ENABLE);
+    i2c_ack_config(I2C0, I2C_ACK_ENABLE);
     //printf("data:%x,%x,%x\r\n",Data[0],Data[1],Data[2]);
-    inttemp_ir = (int) ((Data[0] + Data[1] * 255) * 0.2 - 2731.5);
+    // inttemp_ir = (int) ((Data[0] + Data[1] * 255) * 0.2 - 2731.5);
+    inttemp_ir = (((Data[1] << 8) | Data[0]) * 2 - 27315);
     //		printf("temp:%d\r\n",inttemp_ir);