尝试使用CubeMX做stm32开发之十：ADC配置一、配置参数二、生成代码三、小结

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我是靠谱客的博主明亮招牌，这篇文章主要介绍尝试使用CubeMX做stm32开发之十：ADC配置一、配置参数二、生成代码三、小结，现在分享给大家，希望可以做个参考。

参考《STM32中文参考手册_V10》，研究CubeMX中有关ADC的配置。

一、配置参数

ADC1 Mode and Configuration：

IN0~IN9：10路12位ADC采样通道，外部模拟量信号输入

Temperature Sensor Channel：MCU内置温度传感器采样通道，用来测量器件周围的温度。在MCU内部与ADC1_IN16通道相连

Vrefint Channel：内部参考电压检测通道，ADC 的参考电压都是通过 Vref+ 引脚提供的并作为ADC转换器的基准电压，当Vref+直接取自VDD电压时，易受VDD波动而影响，因此可以该通道对参考电压进行校准，以提升ADC计算精度。在MCU内部与ADC1_IN17通道相连

EXTI Conversion Trigger：外部触发转换。ADC转换可由外部事件触发，EXTSEL[2:0]和JEXTSEL[2:0]控制位允许应用程序选择8个可能的事件中的某一个，触发规则通道组合注入通道组的采样。这里若选择Disable，则可以在6个来自片上定时器的内部信号中选择一个作为触发源；若选择Injected Trigger/Regular Trigger/Injected and Regular Trigger，表示由外部引脚信号触发相应的通道组。

Parameter Settings：

ADCs_Common_Settings

Mode：Independent mode

独立模式。此模式中，双ADC同步不工作，ADC1和ADC2相互独立工作。对应ADC控制寄存器1（ADC_CR1）中的DUALMOD[3:0]位。

ADC_Settings

Data Alignment：Right alignment

数据右对齐。对应ADC控制寄存器2（ADC_CR2）中的ALIGN位。

Scan Conversion Mode：Enable

扫描模式使能。对应ADC控制寄存器1（ADC_CR1）中的SCAN位。

Continuous Conversion Mode：Disable

单次转换模式。对应ADC控制寄存器2（ADC_CR2)中的CONT位。

Discontinuous Conversion Mode：Disable

禁用间断模式，对应ADC控制寄存器1（ADC_CR1）中的DISCEN位。

ADC_Regular_ConversionMode：规则通道组采样设置

Enable Regular Conversions：Enable

使能规则通道组转换。

Number of Conversion：3

规则通道组序列长度为3，即包含3个采样通道。

External Trigger Conversion Source：Timer 2 Capture 2 event

选择定时器2的CC2事件作为启动规则通道组的外部事件。

Rank：ADC转换通道设置
ADC_Injected_ConversionMode：注入通道组采样设置
WatchDog：是否开启模拟看门狗

二、生成代码

复制代码

void MX_ADC1_Init(void)
{

/* USER CODE BEGIN ADC1_Init 0 */

/* USER CODE END ADC1_Init 0 */

ADC_ChannelConfTypeDef sConfig = {0};

/* USER CODE BEGIN ADC1_Init 1 */

/* USER CODE END ADC1_Init 1 */

/** Common config
  */
  hadc1.Instance = ADC1;
  hadc1.Init.ScanConvMode = ADC_SCAN_ENABLE;
  hadc1.Init.ContinuousConvMode = DISABLE;
  hadc1.Init.DiscontinuousConvMode = DISABLE;
  hadc1.Init.ExternalTrigConv = ADC_EXTERNALTRIGCONV_T2_CC2;
  hadc1.Init.DataAlign = ADC_DATAALIGN_RIGHT;
  hadc1.Init.NbrOfConversion = 3;
  if (HAL_ADC_Init(&hadc1) != HAL_OK)
  {
    Error_Handler();
  }

/** Configure Regular Channel
  */
  sConfig.Channel = ADC_CHANNEL_0;
  sConfig.Rank = ADC_REGULAR_RANK_1;
  sConfig.SamplingTime = ADC_SAMPLETIME_7CYCLES_5;
  if (HAL_ADC_ConfigChannel(&hadc1, &sConfig) != HAL_OK)
  {
    Error_Handler();
  }

/** Configure Regular Channel
  */
  sConfig.Channel = ADC_CHANNEL_1;
  sConfig.Rank = ADC_REGULAR_RANK_2;
  if (HAL_ADC_ConfigChannel(&hadc1, &sConfig) != HAL_OK)
  {
    Error_Handler();
  }

/** Configure Regular Channel
  */
  sConfig.Channel = ADC_CHANNEL_2;
  sConfig.Rank = ADC_REGULAR_RANK_3;
  if (HAL_ADC_ConfigChannel(&hadc1, &sConfig) != HAL_OK)
  {
    Error_Handler();
  }
  /* USER CODE BEGIN ADC1_Init 2 */

/* USER CODE END ADC1_Init 2 */

}

void HAL_ADC_MspInit(ADC_HandleTypeDef* adcHandle)
{

GPIO_InitTypeDef GPIO_InitStruct = {0};
  if(adcHandle->Instance==ADC1)
  {
  /* USER CODE BEGIN ADC1_MspInit 0 */

/* USER CODE END ADC1_MspInit 0 */
    /* ADC1 clock enable */
    __HAL_RCC_ADC1_CLK_ENABLE();

__HAL_RCC_GPIOA_CLK_ENABLE();
    /**ADC1 GPIO Configuration
    PA0-WKUP     ------> ADC1_IN0
    PA1     ------> ADC1_IN1
    PA2     ------> ADC1_IN2
    */
    GPIO_InitStruct.Pin = GPIO_PIN_0|GPIO_PIN_1|GPIO_PIN_2;
    GPIO_InitStruct.Mode = GPIO_MODE_ANALOG;
    HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);

/* ADC1 DMA Init */
    /* ADC1 Init */
    hdma_adc1.Instance = DMA1_Channel1;
    hdma_adc1.Init.Direction = DMA_PERIPH_TO_MEMORY;
    hdma_adc1.Init.PeriphInc = DMA_PINC_DISABLE;
    hdma_adc1.Init.MemInc = DMA_MINC_ENABLE;
    hdma_adc1.Init.PeriphDataAlignment = DMA_PDATAALIGN_HALFWORD;
    hdma_adc1.Init.MemDataAlignment = DMA_MDATAALIGN_HALFWORD;
    hdma_adc1.Init.Mode = DMA_CIRCULAR;
    hdma_adc1.Init.Priority = DMA_PRIORITY_HIGH;
    if (HAL_DMA_Init(&hdma_adc1) != HAL_OK)
    {
      Error_Handler();
    }

__HAL_LINKDMA(adcHandle,DMA_Handle,hdma_adc1);

/* USER CODE BEGIN ADC1_MspInit 1 */

/* USER CODE END ADC1_MspInit 1 */
  }
}

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void MX_ADC1_Init(void)
{

  /* USER CODE BEGIN ADC1_Init 0 */

  /* USER CODE END ADC1_Init 0 */

  ADC_ChannelConfTypeDef sConfig = {0};

  /* USER CODE BEGIN ADC1_Init 1 */

  /* USER CODE END ADC1_Init 1 */

  /** Common config
  */
  hadc1.Instance = ADC1;
  hadc1.Init.ScanConvMode = ADC_SCAN_ENABLE;
  hadc1.Init.ContinuousConvMode = DISABLE;
  hadc1.Init.DiscontinuousConvMode = DISABLE;
  hadc1.Init.ExternalTrigConv = ADC_EXTERNALTRIGCONV_T2_CC2;
  hadc1.Init.DataAlign = ADC_DATAALIGN_RIGHT;
  hadc1.Init.NbrOfConversion = 3;
  if (HAL_ADC_Init(&hadc1) != HAL_OK)
  {
    Error_Handler();
  }

  /** Configure Regular Channel
  */
  sConfig.Channel = ADC_CHANNEL_0;
  sConfig.Rank = ADC_REGULAR_RANK_1;
  sConfig.SamplingTime = ADC_SAMPLETIME_7CYCLES_5;
  if (HAL_ADC_ConfigChannel(&hadc1, &sConfig) != HAL_OK)
  {
    Error_Handler();
  }

  /** Configure Regular Channel
  */
  sConfig.Channel = ADC_CHANNEL_1;
  sConfig.Rank = ADC_REGULAR_RANK_2;
  if (HAL_ADC_ConfigChannel(&hadc1, &sConfig) != HAL_OK)
  {
    Error_Handler();
  }

  /** Configure Regular Channel
  */
  sConfig.Channel = ADC_CHANNEL_2;
  sConfig.Rank = ADC_REGULAR_RANK_3;
  if (HAL_ADC_ConfigChannel(&hadc1, &sConfig) != HAL_OK)
  {
    Error_Handler();
  }
  /* USER CODE BEGIN ADC1_Init 2 */

  /* USER CODE END ADC1_Init 2 */

}

void HAL_ADC_MspInit(ADC_HandleTypeDef* adcHandle)
{

  GPIO_InitTypeDef GPIO_InitStruct = {0};
  if(adcHandle->Instance==ADC1)
  {
  /* USER CODE BEGIN ADC1_MspInit 0 */

  /* USER CODE END ADC1_MspInit 0 */
    /* ADC1 clock enable */
    __HAL_RCC_ADC1_CLK_ENABLE();

    __HAL_RCC_GPIOA_CLK_ENABLE();
    /**ADC1 GPIO Configuration
    PA0-WKUP     ------> ADC1_IN0
    PA1     ------> ADC1_IN1
    PA2     ------> ADC1_IN2
    */
    GPIO_InitStruct.Pin = GPIO_PIN_0|GPIO_PIN_1|GPIO_PIN_2;
    GPIO_InitStruct.Mode = GPIO_MODE_ANALOG;
    HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);

    /* ADC1 DMA Init */
    /* ADC1 Init */
    hdma_adc1.Instance = DMA1_Channel1;
    hdma_adc1.Init.Direction = DMA_PERIPH_TO_MEMORY;
    hdma_adc1.Init.PeriphInc = DMA_PINC_DISABLE;
    hdma_adc1.Init.MemInc = DMA_MINC_ENABLE;
    hdma_adc1.Init.PeriphDataAlignment = DMA_PDATAALIGN_HALFWORD;
    hdma_adc1.Init.MemDataAlignment = DMA_MDATAALIGN_HALFWORD;
    hdma_adc1.Init.Mode = DMA_CIRCULAR;
    hdma_adc1.Init.Priority = DMA_PRIORITY_HIGH;
    if (HAL_DMA_Init(&hdma_adc1) != HAL_OK)
    {
      Error_Handler();
    }

    __HAL_LINKDMA(adcHandle,DMA_Handle,hdma_adc1);

  /* USER CODE BEGIN ADC1_MspInit 1 */

  /* USER CODE END ADC1_MspInit 1 */
  }
}

与标准库函数代码对比：

复制代码

/* GPIO */
	
	RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE );
	
	/*PA0-PA2ÈýÏàµçÁ÷²ÉÑù*/
	GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN;
	GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0;//ADC0
	GPIO_Init(GPIOA, &GPIO_InitStructure);

GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN;
	GPIO_InitStructure.GPIO_Pin = GPIO_Pin_1;//ADC1
	GPIO_Init(GPIOA, &GPIO_InitStructure);	
	
	GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN;
	GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2;//ADC2
	GPIO_Init(GPIOA, &GPIO_InitStructure);	
	
	/* ADC */

RCC_APB2PeriphClockCmd(RCC_APB2Periph_ADC1, ENABLE);

ADC_DeInit(ADC1); 
	ADC_InitStructure.ADC_Mode = ADC_Mode_Independent;
	ADC_InitStructure.ADC_ScanConvMode = ENABLE;
	ADC_InitStructure.ADC_ContinuousConvMode = DISABLE;
	ADC_InitStructure.ADC_ExternalTrigConv = ADC_ExternalTrigConv_T2_CC2;
	ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right;
	ADC_InitStructure.ADC_NbrOfChannel = 3;
	ADC_Init(ADC1, &ADC_InitStructure);
//	ADC_TempSensorVrefintCmd(ENABLE);

RCC_ADCCLKConfig(RCC_PCLK2_Div6);

ADC_RegularChannelConfig(ADC1, ADC_Channel_0, 1, ADC_SampleTime_7Cycles5);
	ADC_RegularChannelConfig(ADC1, ADC_Channel_1, 2, ADC_SampleTime_7Cycles5);
	ADC_RegularChannelConfig(ADC1, ADC_Channel_2, 3, ADC_SampleTime_7Cycles5);
//	ADC_RegularChannelConfig(ADC1, ADC_Channel_3, 4, ADC_SampleTime_7Cycles5);
//	ADC_RegularChannelConfig(ADC1, ADC_Channel_4, 5, ADC_SampleTime_7Cycles5);
//	ADC_RegularChannelConfig(ADC1, ADC_Channel_5, 6, ADC_SampleTime_7Cycles5);
//	ADC_RegularChannelConfig(ADC1, ADC_Channel_6, 7, ADC_SampleTime_7Cycles5);

ADC_DMACmd(ADC1, ENABLE); 
	ADC_Cmd(ADC1, ENABLE);

/* ADC校准 */
	ADC_ResetCalibration(ADC1);
	while(ADC_GetResetCalibrationStatus(ADC1));
	ADC_StartCalibration(ADC1);
	while(ADC_GetCalibrationStatus(ADC1));

ADC_ExternalTrigConvCmd(ADC1, ENABLE);

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	/* GPIO */
	
	RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE );
	
	/*PA0-PA2ÈýÏàµçÁ÷²ÉÑù*/
	GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN;
	GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0;//ADC0
	GPIO_Init(GPIOA, &GPIO_InitStructure);

	GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN;
	GPIO_InitStructure.GPIO_Pin = GPIO_Pin_1;//ADC1
	GPIO_Init(GPIOA, &GPIO_InitStructure);	
	
	GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN;
	GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2;//ADC2
	GPIO_Init(GPIOA, &GPIO_InitStructure);	
	
	/* ADC */

	RCC_APB2PeriphClockCmd(RCC_APB2Periph_ADC1, ENABLE);

	ADC_DeInit(ADC1); 
	ADC_InitStructure.ADC_Mode = ADC_Mode_Independent;
	ADC_InitStructure.ADC_ScanConvMode = ENABLE;
	ADC_InitStructure.ADC_ContinuousConvMode = DISABLE;
	ADC_InitStructure.ADC_ExternalTrigConv = ADC_ExternalTrigConv_T2_CC2;
	ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right;
	ADC_InitStructure.ADC_NbrOfChannel = 3;
	ADC_Init(ADC1, &ADC_InitStructure);
//	ADC_TempSensorVrefintCmd(ENABLE);

	RCC_ADCCLKConfig(RCC_PCLK2_Div6);

	ADC_RegularChannelConfig(ADC1, ADC_Channel_0, 1, ADC_SampleTime_7Cycles5);
	ADC_RegularChannelConfig(ADC1, ADC_Channel_1, 2, ADC_SampleTime_7Cycles5);
	ADC_RegularChannelConfig(ADC1, ADC_Channel_2, 3, ADC_SampleTime_7Cycles5);
//	ADC_RegularChannelConfig(ADC1, ADC_Channel_3, 4, ADC_SampleTime_7Cycles5);
//	ADC_RegularChannelConfig(ADC1, ADC_Channel_4, 5, ADC_SampleTime_7Cycles5);
//	ADC_RegularChannelConfig(ADC1, ADC_Channel_5, 6, ADC_SampleTime_7Cycles5);
//	ADC_RegularChannelConfig(ADC1, ADC_Channel_6, 7, ADC_SampleTime_7Cycles5);

	ADC_DMACmd(ADC1, ENABLE); 
	ADC_Cmd(ADC1, ENABLE);

	/* ADC校准 */
	ADC_ResetCalibration(ADC1);
	while(ADC_GetResetCalibrationStatus(ADC1));
	ADC_StartCalibration(ADC1);
	while(ADC_GetCalibrationStatus(ADC1));

	ADC_ExternalTrigConvCmd(ADC1, ENABLE);