diff --git a/User/bsp/uart.c b/User/bsp/uart.c
index b431808..950d69b 100644
--- a/User/bsp/uart.c
+++ b/User/bsp/uart.c
@@ -11,9 +11,8 @@ static void (*UART_Callback[BSP_UART_NUM][BSP_UART_CB_NUM])(void);
 static BSP_UART_t UART_Get(UART_HandleTypeDef *huart) {
   if (huart->Instance == USART1)
     return BSP_UART_EXAMPLE;
-
-  /*else */
-
+  // else if (huart->Instance == USARTX)
+  //   return BSP_UART_XXX;
   else
     return BSP_UART_ERR;
 }
@@ -104,6 +103,8 @@ UART_HandleTypeDef *BSP_UART_GetHandle(BSP_UART_t uart) {
   switch (uart) {
     case BSP_UART_EXAMPLE:
       return &huart1;
+    // case BSP_UART_XXX:
+    //   return &huartX;
     default:
       return NULL;
   }
diff --git a/User/bsp/uart.h b/User/bsp/uart.h
index d7295e3..9c82fe3 100644
--- a/User/bsp/uart.h
+++ b/User/bsp/uart.h
@@ -18,7 +18,7 @@ extern "C" {
 /* UART实体枚举，与设备对应 */
 typedef enum {
   BSP_UART_EXAMPLE,
-  /*BSP_UART_??*/
+  /*BSP_UART_XXX*/
   BSP_UART_NUM,
   BSP_UART_ERR,
 } BSP_UART_t;