diff --git a/MDK-ARM/RobotMaster_allRobots.uvoptx b/MDK-ARM/RobotMaster_allRobots.uvoptx
index c19c8c91d3ab5fbe5924d97b3bd876dbf3a8097d..8f81f35868749b51d65a1e9423bbb2d42bc15ad1 100644
--- a/MDK-ARM/RobotMaster_allRobots.uvoptx
+++ b/MDK-ARM/RobotMaster_allRobots.uvoptx
@@ -693,7 +693,7 @@
 
   <Group>
     <GroupName>Devices</GroupName>
-    <tvExp>0</tvExp>
+    <tvExp>1</tvExp>
     <tvExpOptDlg>0</tvExpOptDlg>
     <cbSel>0</cbSel>
     <RteFlg>0</RteFlg>
diff --git a/Src/receiver_RadioController.c b/Src/receiver_RadioController.c
index 80c9041438e75132d83f0c729e39ee552ee082b0..474e283621b3e34bd4b846fd9403ca1b65e6567e 100644
--- a/Src/receiver_RadioController.c
+++ b/Src/receiver_RadioController.c
@@ -31,7 +31,7 @@ void receiver_RadioController_callback_handler()
 	/* prevent remote control zero deviation */
 	if (receiver_RadioController.data.ch1 <= 5 && receiver_RadioController.data.ch1 >= -5)
 	{
-			//receiver_RadioController.data.ch1 = 0;
+			receiver_RadioController.data.ch1 = 0;
 	}
 	if (receiver_RadioController.data.ch2 <= 5 && receiver_RadioController.data.ch2 >= -5)
 	{
@@ -69,13 +69,6 @@ void receiver_RadioController_callback_handler()
 
 	receiver_RadioController.data.wheel = (uart1_rx_buff[16] | uart1_rx_buff[17] << 8);
 	receiver_RadioController.data.wheel -= 1024;
-	if(receiver_RadioController.data.wheel <= 660)
-		receiver_RadioController.data.wheel = -receiver_RadioController.data.wheel;
-	else{
-		receiver_RadioController.data.wheel = 660 * receiver_RadioController.data.wheel / 14790 ;
-		if(receiver_RadioController.data.wheel > 660) receiver_RadioController.data.wheel = 660;
-	}
-	
 }