diff --git a/code/application/source/cardv/SrcCode/System/SysUsb_Exe.c b/code/application/source/cardv/SrcCode/System/SysUsb_Exe.c
index 0591d6cae..d2a00575c 100755
--- a/code/application/source/cardv/SrcCode/System/SysUsb_Exe.c
+++ b/code/application/source/cardv/SrcCode/System/SysUsb_Exe.c
@@ -168,7 +168,7 @@ static BOOL System_InsmodUsb(BOOL isHost)
 
 	if(isHost == FALSE){
 #if HUNTING_CAMERA_MCU == ENABLE
-        sf_set_msdc_clk();
+        //sf_set_msdc_clk();
         sf_usb_mux_s(0);
         vos_util_delay_ms(200);
 #endif