diff --git a/code/application/source/sf_app/code/source/systemMng/sf_commu_mcu_reg.c b/code/application/source/sf_app/code/source/systemMng/sf_commu_mcu_reg.c
index 58f9d8dee..60210d0fd 100755
--- a/code/application/source/sf_app/code/source/systemMng/sf_commu_mcu_reg.c
+++ b/code/application/source/sf_app/code/source/systemMng/sf_commu_mcu_reg.c
@@ -472,7 +472,7 @@ unsigned char sf_mcu_reg_set(MCUParam_t attrId, unsigned char val)
             sf_sleep_ms(100);
         }
     }
-
+    i = 0;
 	if(attrId == SF_MCU_POWEROFF)
 	{
 		//printf("SynMcuSet = %x\n", statisPara->SynMcuSet);