diff --git a/Src/AdcFlagchip.c b/Src/AdcFlagchip.c
index 0520fb4..f0b91f9 100644
--- a/Src/AdcFlagchip.c
+++ b/Src/AdcFlagchip.c
@@ -97,10 +97,9 @@ tAdcFlagchip ADC_Initial(
 
     NVIC_SetPriorityGrouping(NVIC_PRIORITY_GROUP_4);
 
+    NVIC_EnableIRQ(IRQ_DMA);
     NVIC_SetPriority(DMA_Error_IRQn, IRQ_DMA_PRIORITY);
     NVIC_SetPriority(IRQ_DMA, IRQ_DMA_PRIORITY);
-    NVIC_EnableIRQ(IRQ_DMA);
-
 
     return adc;
 }