SYM32L152 多路ADC+DMA+DMA中断问题

q370375662

void ADC_Configuration(void)
{
  ADC_InitTypeDef ADC_InitStructure;

  /* Enable ADC1 clock */
  RCC_APB2PeriphClockCmd(RCC_APB2Periph_ADC1, ENABLE);

  /* Enable the HSI for the ADC operations */
  RCC_HSICmd(ENABLE);
  ADC_DeInit(ADC1);
  /* ADC1 configuration ------------------------------------------------------*/
  ADC_StructInit(&ADC_InitStructure);
  ADC_InitStructure.ADC_ScanConvMode = ENABLE;
  ADC_InitStructure.ADC_ContinuousConvMode = ENABLE;
// ADC_InitStructure.ADC_ExternalTrigConvEdge = ADC_ExternalTrigInjecConvEdge_Rising;  // rising trig conv
        
        ADC_InitStructure.ADC_ExternalTrigConvEdge=ADC_ExternalTrigInjecConvEdge_None;
// ADC_InitStructure.ADC_ExternalTrigConv = ADC_ExternalTrigInjecConv_T4_CC3;         //′￥·￠·½ê½,TIM4 CC3
  ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right;
  ADC_InitStructure.ADC_NbrOfConversion = 2;
  ADC_Init(ADC1, &ADC_InitStructure);

  /* ADC1 regular channel9 configuration */
  ADC_RegularChannelConfig(ADC1, ADC_Channel_3, 1, ADC_SampleTime_384Cycles);//  PA3===>ADC_Channel_3
        ADC_RegularChannelConfig(ADC1, ADC_Channel_2, 2, ADC_SampleTime_384Cycles);//  PA3===>ADC_Channel_3



  /* Enable the request after last transfer for DMA Circular mode */
  ADC_DMARequestAfterLastTransferCmd(ADC1, ENABLE);

  /* Enable ADC1 DMA */
  ADC_DMACmd(ADC1, ENABLE);

  /* Enable ADC1 */
  ADC_Cmd(ADC1, ENABLE);
        
          /* Wait until the ADC1 is ready */
  while(ADC_GetFlagStatus(ADC1, ADC_FLAG_ADONS) == RESET)
  {
  }
        /*Start ADC1 Software Conversion*/
   ADC_SoftwareStartConv(ADC1);
}
void DMA_Configuration()
{
        DMA_InitTypeDef DMA_InitStructure;
        
          /* Enable DMA1 clock */
  RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA1, ENABLE);
          /* DMA1 channel1 configuration ---------------------------------------------*/
  DMA_DeInit(DMA1_Channel1);
  DMA_InitStructure.DMA_PeripheralBaseAddr = ADC1_DR_Address;
  DMA_InitStructure.DMA_MemoryBaseAddr = (uint32_t)&ADC_ConvertedValueX;
  DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralSRC;
  DMA_InitStructure.DMA_BufferSize = 2;
  DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;
          //DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable;
        DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Disable;
  DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_HalfWord;
  DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_HalfWord;
  DMA_InitStructure.DMA_Mode = DMA_Mode_Circular;
  DMA_InitStructure.DMA_Priority = DMA_Priority_High;
  DMA_InitStructure.DMA_M2M = DMA_M2M_Disable;
  DMA_Init(DMA1_Channel1, &DMA_InitStructure);

  /* Enable DMA1 channel1 */
  DMA_Cmd(DMA1_Channel1, ENABLE);

  /* Enable the DMA1 Channel1 Transfer complete interrupt */
  DMA_ITConfig(DMA1_Channel1, DMA_IT_TC, ENABLE);
        
}



我想请问下，如果第一个通道要实时检测，而第二个通道要有脉冲过来再检测请问怎么处理？

fire

ADC 应该还没有这种功能吧   

q370375662

谢谢！123456789