diff --git a/inc/rs485.h b/inc/rs485.h
index 3200d5e..a6366f3 100644
--- a/inc/rs485.h
+++ b/inc/rs485.h
@@ -9,6 +9,7 @@
 #include "gd32e23x.h"
 #include "systick.h"
 #include <stdio.h>
+#include <string.h>
 #include <stdbool.h>
 #include "ldc1612.h"
 #include "tmp112.h"
@@ -36,6 +37,12 @@ typedef enum
 
 /******************************************************************************/
 
+uint8_t Command_Write(uint8_t *data, uint8_t length);
+
+uint8_t Command_GetCommand(uint8_t *command);
+
+/******************************************************************************/
+
 void rs485_config(void);
 
 void process_command(uint8_t* cmd, size_t length);
diff --git a/src/gd32e23x_it.c b/src/gd32e23x_it.c
index 6893a93..24ab88e 100644
--- a/src/gd32e23x_it.c
+++ b/src/gd32e23x_it.c
@@ -39,6 +39,8 @@ OF SUCH DAMAGE.
 #include "rs485.h"
 #include "led.h"
 
+extern uint8_t readBuffer[16];
+
 /*!
     \brief      this function handles NMI exception
     \param[in]  none
@@ -119,22 +121,21 @@ void TIMER16_IRQHandler(void) {
 
 void USART0_IRQHandler(void) {
     static uint8_t rx_index = 0;
-    static uint8_t rx_buffer[RX_BUFFER_SIZE];
 
     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);
+        // 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;
+        if (rx_index < sizeof(readBuffer) - 1) {
+            readBuffer[rx_index++] = usart_data_receive(USART0);
         }
     }
 
     if (RESET != usart_interrupt_flag_get(USART0, USART_INT_FLAG_IDLE)) {
         usart_interrupt_flag_clear(USART0, USART_INT_FLAG_IDLE);
 
-        process_command(rx_buffer, rx_index); // 处理指令
+        Command_Write(readBuffer, rx_index);// 处理指令
 
         rx_index = 0; // 重置缓冲区索引
         return;
diff --git a/src/main.c b/src/main.c
index 6c6b0d8..a342d50 100644
--- a/src/main.c
+++ b/src/main.c
@@ -8,6 +8,8 @@
 
 bool g_statusSwitch = false;
 
+uint8_t readBuffer[16];
+
 /*!
     \brief      main function
     \param[in]  none
@@ -40,12 +42,23 @@ int main(void) {
     /* Initialize watchdog */
     watchdog_init();
 
+    uint8_t command[10];
+    uint8_t command_length = 0;
+
     while (1) {
 
-        delay_ms(10);
+        // delay_ms(10);
         fwdgt_counter_reload();
-        if (g_statusSwitch)
-        {eddy_current_value_report();}
+        command_length = Command_GetCommand(command);
+        if (command_length != 0)
+        {
+            for (int i = 0; i < command_length; i++)
+            {
+                printf("%c", command[i]);
+            }
+        }
+        // if (g_statusSwitch)
+        // {eddy_current_value_report();}
     }
 }