diff --git a/app.c b/app.c
index d0ea456..b147786 100644
--- a/app.c
+++ b/app.c
@@ -48,7 +48,7 @@ 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
 
-uint32_t judge_recv_lcd_data_finish_main(uint8_t time)
+uint32_t judge_recv_lcd_data_finish_main(uint32_t time)
 {
     /**
  * @brief 接收LCD的数据完成