diff --git a/Inc/AdcFlagchip.h b/Inc/AdcFlagchip.h
index cdcc779..de3359f 100644
--- a/Inc/AdcFlagchip.h
+++ b/Inc/AdcFlagchip.h
@@ -32,8 +32,6 @@ typedef struct {
 tAdcFlagchip ADC_Initial(
         ADC_InstanceType ADCx, // ADC_INSTANCE_0, ADC_INSTANCE_1
 
-        PCC_ClkSrcType adcClock, // PCC_CLK_ADC0, PCC_CLK_ADC1
-
         DMA_ChannelType ADC_DMA_CHANNEL, // DMA_CHANNEL_0 .. DMA_CHANNEL_15
 
         IRQn_Type IRQ_DMA,
diff --git a/Src/AdcFlagchip.c b/Src/AdcFlagchip.c
index f0b91f9..b9f6c49 100644
--- a/Src/AdcFlagchip.c
+++ b/Src/AdcFlagchip.c
@@ -15,8 +15,6 @@ void Get_ADC_Result(tAdcFlagchip *env) {
 tAdcFlagchip ADC_Initial(
         ADC_InstanceType ADCx, // ADC_INSTANCE_0, ADC_INSTANCE_1
 
-        PCC_ClkSrcType adcClock, // PCC_CLK_ADC0, PCC_CLK_ADC1
-
         DMA_ChannelType ADC_DMA_CHANNEL, // DMA_CHANNEL_0 .. DMA_CHANNEL_15
 
         IRQn_Type IRQ_DMA,
@@ -35,14 +33,6 @@ tAdcFlagchip ADC_Initial(
         ADC_ConvCompleteCallbackType Bsp_ADC_HandleResult
 ) {
 
-    PCC_CtrlType bSP_PCC_Config;
-
-    bSP_PCC_Config.eClockName = adcClock;
-    bSP_PCC_Config.bEn = TRUE;
-    bSP_PCC_Config.eClkSrc = PCC_CLKGATE_SRC_FOSCDIV;
-    bSP_PCC_Config.eDivider = PCC_CLK_DIV_BY1;
-
-    PCC_SetPcc(&bSP_PCC_Config);
 
     tAdcFlagchip adc = {
             .ADCx = ADCx,