diff --git a/Src/AdcFlagchip.c b/Src/AdcFlagchip.c
index e5621a4..8d531f9 100644
--- a/Src/AdcFlagchip.c
+++ b/Src/AdcFlagchip.c
@@ -85,7 +85,7 @@ void ADC_Initial(
     ADC_InitDmaChannel(ADCx, &env->s_tAdcDmaCfg);
     ADC_Enable(ADC_INSTANCE_0);
 
-    NVIC_SetPriorityGrouping(NVIC_PRIORITY_GROUP_4);
+    //NVIC_SetPriorityGrouping(NVIC_PRIORITY_GROUP_4);
 
     NVIC_EnableIRQ(IRQ_DMA);
     NVIC_SetPriority(DMA_Error_IRQn, IRQ_DMA_PRIORITY);