ADC＋DMA双通道采集程序卡死及数据错位

15076235297 · 发表于 2023-9-12 22:52:24

按照配置后加上DMA的中断程序在初始化卡死。去掉中断后数据错位，双通道输出数据不正常。

15076235297 · 发表于 2023-9-12 22:52:52

DMA_HandleTypeDef hdma_adc3;
ADC_HandleTypeDef hadc3;

void MX_ADC3_Init(void)
{
  ADC_ChannelConfTypeDef sConfig = {0};
  hadc3.Instance = ADC1;
  hadc3.Init.ScanConvMode = ADC_SCAN_ENABLE;
  hadc3.Init.ContinuousConvMode = ENABLE;
  hadc3.Init.DiscontinuousConvMode = DISABLE;
  hadc3.Init.ExternalTrigConv = ADC_SOFTWARE_START;
  hadc3.Init.DataAlign = ADC_DATAALIGN_RIGHT;
  hadc3.Init.NbrOfConversion = 2;
  HAL_ADC_Init(&hadc3);

  sConfig.Channel = ADC_CHANNEL_10;
  sConfig.Rank = ADC_REGULAR_RANK_1;
  sConfig.SamplingTime = ADC_SAMPLETIME_239CYCLES_5;
  HAL_ADC_ConfigChannel(&hadc3, &sConfig);

  sConfig.Channel = ADC_CHANNEL_11;
  sConfig.Rank = ADC_REGULAR_RANK_2;
sConfig.SamplingTime = ADC_SAMPLETIME_239CYCLES_5;
  HAL_ADC_ConfigChannel(&hadc3, &sConfig);
}
void MX_DMA_Init(void)
{
__HAL_RCC_DMA1_CLK_ENABLE();

HAL_NVIC_SetPriority(DMA1_Channel1_IRQn, 0, 0);
HAL_NVIC_EnableIRQ(DMA1_Channel1_IRQn);

}
void HAL_ADC_MspInit(ADC_HandleTypeDef* adcHandle)
{

GPIO_InitTypeDef GPIO_InitStruct = {0};
if(adcHandle->Instance==ADC1)
{
__HAL_RCC_ADC1_CLK_ENABLE();
__HAL_RCC_GPIOC_CLK_ENABLE();

GPIO_InitStruct.Pin = GPIO_PIN_0|GPIO_PIN_1;
GPIO_InitStruct.Mode = GPIO_MODE_ANALOG;
HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);

hdma_adc3.Instance = DMA1_Channel1;
hdma_adc3.Init.Direction = DMA_PERIPH_TO_MEMORY;
hdma_adc3.Init.PeriphInc = DMA_PINC_DISABLE;
hdma_adc3.Init.MemInc = DMA_MINC_ENABLE;
hdma_adc3.Init.PeriphDataAlignment = DMA_PDATAALIGN_WORD;
hdma_adc3.Init.MemDataAlignment = DMA_PDATAALIGN_WORD;
hdma_adc3.Init.Mode = DMA_CIRCULAR;
hdma_adc3.Init.Priority = DMA_PRIORITY_HIGH;
HAL_DMA_Init(&hdma_adc3);

__HAL_LINKDMA(adcHandle,DMA_Handle,hdma_adc3);

// HAL_NVIC_SetPriority(DMA1_Channel1_IRQn, 0, 0);
// HAL_NVIC_EnableIRQ(DMA1_Channel1_IRQn);
}
}

void HAL_ADC_MspDeInit(ADC_HandleTypeDef* adcHandle)
{
__HAL_RCC_ADC1_CLK_DISABLE();
HAL_GPIO_DeInit(GPIOC, GPIO_PIN_0|GPIO_PIN_1);
HAL_DMA_DeInit(adcHandle->DMA_Handle);

}

15076235297 · 发表于 2023-9-12 22:53:34

HAL_Init();
      /* 初始化系统时钟为64MHz */
      SystemClock_Config();
  __HAL_AFIO_REMAP_SWJ_NOJTAG();
//       __HAL_RCC_SYSCFG_CLK_ENABLE();
//  protocol_init();
      DEBUG_USART_Config();
//
      motor_init();
      Encoder_Init();
  TIMx_Configuration();
  PID_param_init();
      Remote_Init();
      MX_DMA_Init();


      MX_ADC3_Init();
      HAL_ADCEx_Calibration_Start(&hadc3);
HAL_ADC_Start_DMA(&hadc3,(uint32_t*)&ADC_Valuex,10);

//#if defined(PID_ASSISTANT_EN)
//  set_computer_value(SEND_STOP_CMD, CURVES_CH1, NULL, 0); // 同步上位机的启动按钮状态
//  set_computer_value(SEND_TARGET_CMD, CURVES_CH1, &target_speed_motor1, 1);    // 给通道 1 发送目标值
//       set_computer_value(SEND_STOP_CMD, CURVES_CH2, NULL, 0); // 同步上位机的启动按钮状态
//  set_computer_value(SEND_TARGET_CMD, CURVES_CH2, &target_speed_motor2, 1);    // 给通道 2 发送目标值
//#endif

      while(1)
      {
            for(i = 0,ad1 =0,ad2=0; i < 10;)
         {
                              ad1 += ADC_Valuex[i++];
                              ad2 += ADC_Valuex[i++];
         }
            ad1 /= 5;
            ad2 /= 5;
         printf("[\tmain]info:AD1_value=%1.3fV\r\n",ad1*3.3f/4096);
         printf("[\tmain]info:AD2_value=%1.3fV\r n",ad2*3.3f/4096);

/* 接收数据处理 */
// receiving_process();

      }
}