Update drv_uart.c

liuhy-2020 · Dec 27, 2021 · 6d82a84 · 6d82a84
1 parent a6a1098
commit 6d82a84
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/drivers/rtt/drv_uart.c b/drivers/rtt/drv_uart.c
@@ -672,6 +672,7 @@ 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)));
 
@@ -683,6 +684,7 @@ 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;