ADC1通道8不工作什么原因？

碧霄长博

void  Adc_Init(void)
{  

 RCC->APB2ENR|=1<<3;//????A???±??
 GPIOB->CRL&=0XFFFFFFF0;// PB0??????
 RCC->APB2ENR|=1<<9; //ADC1?±??????
 RCC->APB2RSTR|=1<<9;//ADC1????
 RCC->APB2RSTR&=~(1<<9);//ADC1?????á??
 RCC->CFGR&=~(3<<14); //·????ò×?????
 RCC->CFGR|=1<<14; //?è??·????ò×?
 ADC1->CR1&=0xf0ffff;//?¤×÷????????
 ADC1->CR1|=0<<16;// ?????¤×÷????
 ADC1->CR1&=~(1<<8); // ·??¨?è????
 ADC1->CR2&=~(1<<1);//  ????×???
 ADC1->CR2&=~(7<<17);//
 ADC1->CR2|=7<<17;  //?í??????×???
 ADC1->CR2|=1<<20;  //??????????·?
 ADC1->CR2&=~(1<<11);// ??????
 ADC1->SQR1&=~(0xf<<20);//
 ADC2->SMPR2&=~(7<<24);    
  ADC2->SMPR2|=7<<24;   
 ADC1->CR2|=1<<0;//????AD×???
 ADC1->CR2|=1<<3;// ??????????×?
 while(ADC1->CR2&(1<<3));//??????×??á??
 ADC1->CR2|=1<<2; //????AD??×?
 while(ADC1->CR2&(1<<2)); //??????×??á?? ???í???è????×? ??×??á???±????????
 
 ADC1->SR&=~(1<<1);
 ADC1->SQR3=0xfffffC1f;//???ò?ò??
 ADC1->SQR3|=1;//×????¨??8
 
 ADC1->CR2|=1<<22;
 ADC1->CR2|=1<<0;//????AD×???

 ADC1->CR2|=1<<22;
 ADC1->CR2|=1<<1;//AD????×???

 ADC1->CR1|=1<<5; // ????????EOCIE
 NVIC->ISER[0] |= (1 << (ADC1_2_IRQChannel & 0x1F));

} 

正点原子

参考下我们的例程设置，再对照你自己的改下吧。