STM32F030如何启用制作ADC组并且启用DMA

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STM32F030如何启用制作ADC组并且启用DMA [复制链接]

我可以使用STM32F030单通道ADC启用DMA采集，但是不知道如何将多个通道制作成一组，使用DMA进行采集

chenzhufly

和单路没有特别的区别,

先配置成多通道,定一个数组, 存进去就得了,注意他们是按顺序存就行。

 

下面是我以前做的一个用的是 070,开了6路ADC

static void MX_ADC_Init(void)
{

  /* USER CODE BEGIN ADC_Init 0 */

  /* USER CODE END ADC_Init 0 */

  ADC_ChannelConfTypeDef sConfig = {0};

  /* USER CODE BEGIN ADC_Init 1 */

  /* USER CODE END ADC_Init 1 */
  /** Configure the global features of the ADC (Clock, Resolution, Data Alignment and number of conversion) 
  */
  hadc.Instance = ADC1;
//  hadc.Init.ClockPrescaler = ADC_CLOCK_ASYNC_DIV1;
	hadc.Init.ClockPrescaler = ADC_CLOCK_SYNC_PCLK_DIV2;
  hadc.Init.Resolution = ADC_RESOLUTION_12B;
  hadc.Init.DataAlign = ADC_DATAALIGN_RIGHT;
  hadc.Init.ScanConvMode = ADC_SCAN_DIRECTION_FORWARD;
//  hadc.Init.EOCSelection = ADC_EOC_SINGLE_CONV;
	hadc.Init.EOCSelection = ADC_EOC_SEQ_CONV;
  hadc.Init.LowPowerAutoWait = DISABLE;
  hadc.Init.LowPowerAutoPowerOff = DISABLE;
  hadc.Init.ContinuousConvMode = ENABLE;
  hadc.Init.DiscontinuousConvMode = DISABLE;
  hadc.Init.ExternalTrigConv = ADC_SOFTWARE_START;
  hadc.Init.ExternalTrigConvEdge = ADC_EXTERNALTRIGCONVEDGE_NONE;
  hadc.Init.DMAContinuousRequests = ENABLE;
  hadc.Init.Overrun = ADC_OVR_DATA_OVERWRITTEN;
  if (HAL_ADC_Init(&hadc) != HAL_OK)
  {
    Error_Handler();
  }
	
	 /* ### - 2 - Start calibration ############################################ */
  if (HAL_ADCEx_Calibration_Start(&hadc) != HAL_OK)
  {
    Error_Handler();
  }
  /** Configure for the selected ADC regular channel to be converted. 
  */
  sConfig.Channel = ADC_CHANNEL_0;
  sConfig.Rank = ADC_RANK_CHANNEL_NUMBER;
//  sConfig.SamplingTime = ADC_SAMPLETIME_13CYCLES_5;
	sConfig.SamplingTime = ADC_SAMPLETIME_239CYCLES_5;
  if (HAL_ADC_ConfigChannel(&hadc, &sConfig) != HAL_OK)
  {
    Error_Handler();
  }
  /** Configure for the selected ADC regular channel to be converted. 
  */
  sConfig.Channel = ADC_CHANNEL_1;
  if (HAL_ADC_ConfigChannel(&hadc, &sConfig) != HAL_OK)
  {
    Error_Handler();
  }
  /** Configure for the selected ADC regular channel to be converted. 
  */
  sConfig.Channel = ADC_CHANNEL_2;
  if (HAL_ADC_ConfigChannel(&hadc, &sConfig) != HAL_OK)
  {
    Error_Handler();
  }
  /** Configure for the selected ADC regular channel to be converted. 
  */
  sConfig.Channel = ADC_CHANNEL_3;
  if (HAL_ADC_ConfigChannel(&hadc, &sConfig) != HAL_OK)
  {
    Error_Handler();
  }
  /** Configure for the selected ADC regular channel to be converted. 
  */
  sConfig.Channel = ADC_CHANNEL_4;
  if (HAL_ADC_ConfigChannel(&hadc, &sConfig) != HAL_OK)
  {
    Error_Handler();
  }
  /** Configure for the selected ADC regular channel to be converted. 
  */
  sConfig.Channel = ADC_CHANNEL_5;
  if (HAL_ADC_ConfigChannel(&hadc, &sConfig) != HAL_OK)
  {
    Error_Handler();
  }
  /* USER CODE BEGIN ADC_Init 2 */

  /* USER CODE END ADC_Init 2 */

}

 

主程序定义了一个数组，采集96个主要是为了滤波用的，相当于6路各有16个数据存在里面。

 if (HAL_ADC_Start_DMA(&hadc,(uint32_t *)aADCxConvertedValues, 96) != HAL_OK)
  {
    Error_Handler();
  }

 

 

soso

chenzhufly 发表于 2021-7-25 18:45 和单路没有特别的区别, 先配置成多通道,定一个数组, 存进去就得了,注意他们是按顺序存就行。   ...

厉害了，整技术啦

chenzhufly

soso 发表于 2021-7-26 09:39 厉害了，整技术啦

好久没弄，生疏了，哈哈

以前做过，翻看前面的代码，贴上来的