Update drv_uart.c

liuhy-2020 · Oct 21, 2021 · 09cc1f3 · 09cc1f3
1 parent 3c16873
commit 09cc1f3
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/drivers/rtt/drv_uart.c b/drivers/rtt/drv_uart.c
@@ -673,6 +673,7 @@ static rt_err_t es32f3x_control(struct rt_serial_device *serial, int cmd, void *
             break;
 #endif
 
+#ifdef RT_DEVICE_CTRL_CLOSE            
         case RT_DEVICE_CTRL_CLOSE:
             while (ald_uart_get_status(&uart->huart, (UART_STATUS_TSBUSY)));
 
@@ -684,6 +685,7 @@ static rt_err_t es32f3x_control(struct rt_serial_device *serial, int cmd, void *
 #endif
             ald_uart_reset(&uart->huart);
             break;
+#endif
     }
 
     return RT_EOK;