diff --git a/Src/PwmFlagchip.c b/Src/PwmFlagchip.c
index 8d7bc02..bb13447 100644
--- a/Src/PwmFlagchip.c
+++ b/Src/PwmFlagchip.c
@@ -46,7 +46,7 @@ void PWM_Initial(
     TPU_PwmModeInit(TPU_PWM_CHANNEL, &env->etpu_pwmconfig_tbl);
     TPU_InitChannelInterrupt(TPU_PWM_CHANNEL, &env->etpu_Int_config_tbl);
 
-    NVIC_SetPriorityGrouping(NVIC_PRIORITY_GROUP_4);
+    //NVIC_SetPriorityGrouping(NVIC_PRIORITY_GROUP_4);
 
     if (TPU_PWM_CHANNEL <= 7) {
         NVIC_EnableIRQ(TPU0_CH0_7_IRQn);