diff --git a/app.c b/app.c
index df792c7..42fd279 100644
--- a/app.c
+++ b/app.c
@@ -43,6 +43,7 @@ void start_up(void)
 	}
 }
 
+
 extern volatile char lcd_rxbuff[50] = {0};
 extern volatile int32_t lcd_count = 0;
 extern uint8_t g_lcd_rxbuf_isready;//lcd数据接收过程中为真，接收完成为假
@@ -64,6 +65,7 @@ uint32_t judge_recv_lcd_data_finish_main(uint8_t time)
     recv_lcd_data_time = hal_get_ticket();
     send_cmd_to_lcd(lcd_rxbuff,lcd_count);//接收完成将数据发给电脑
     lcd_count=0;
+    return 0;
   }
 }