diff --git a/Core/Src/logic.c b/Core/Src/logic.c
index 2fe01ad..6245584 100644
--- a/Core/Src/logic.c
+++ b/Core/Src/logic.c
@@ -44,7 +44,7 @@ void Painting_Device_Init()
 	//为树莓派分配串口1
 	Raspberry_initialize(&RS_485_1_UART_Handler);
 	//为超声波测距传感器分配串口4
-	Sonic_intialize(&RS_485_4_UART_Handler);
+	Sonic_intialize(&RS_485_3_UART_Handler);
 //	Elite_Remote_PowerOn2();
 	//主程序每2ms调度一次
 	GF_BSP_Interrupt_Add_CallBack(