写一个STM32 ADC DMA采集代码，采集8路ADC，DMA缓存1024，使用HAL库

### 回答1：

程序代码如下：#include "stm32f4xx_hal.h"#define BUFFER_SIZE 1024ADC_HandleTypeDef hadc1;
DMA_HandleTypeDef hdma_adc1;uint16_t ADC_Buffer[BUFFER_SIZE];void SystemClock_Config(void);
static void MX_ADC1_Init(void);
static void MX_DMA_Init(void);int main(void)
{
HAL_Init();
SystemClock_Config();
MX_ADC1_Init();
MX_DMA_Init();

HAL_ADC_Start_DMA(&hadc1, ADC_Buffer, BUFFER_SIZE);

while (1)
{
HAL_Delay(100);
}
}static void MX_ADC1_Init(void)
{
ADC_ChannelConfTypeDef sConfig;

hadc1.Instance = ADC1;
hadc1.Init.ClockPrescaler = ADC_CLOCK_SYNC_PCLK_DIV4;
hadc1.Init.Resolution = ADC_RESOLUTION_12B;
hadc1.Init.ScanConvMode = ENABLE;
hadc1.Init.ContinuousConvMode = ENABLE;
hadc1.Init.DiscontinuousConvMode = DISABLE;
hadc1.Init.ExternalTrigConvEdge = ADC_EXTERNALTRIGCONVEDGE_NONE;
hadc1.Init.ExternalTrigConv = ADC_SOFTWARE_START;
hadc1.Init.DataAlign = ADC_DATAALIGN_RIGHT;
hadc1.Init.NbrOfConversion = 8;
hadc1.Init.DMAContinuousRequests = ENABLE;
hadc1.Init.EOCSelection = ADC_EOC_SINGLE_CONV;

if (HAL_ADC_Init(&hadc1) != HAL_OK)
{
// Error
}

sConfig.Channel = ADC_CHANNEL_0;
sConfig.Rank = 1;
sConfig.SamplingTime = ADC_SAMPLETIME_15CYCLES;

if (HAL_ADC_ConfigChannel(&hadc1, &sConfig) != HAL_OK)
{
// Error
}
sConfig.Channel = ADC_CHANNEL_1;
sConfig.Rank = 2;
if (HAL_ADC_ConfigChannel(&hadc1, &sConfig) != HAL_OK)
{
// Error
}
sConfig.Channel = ADC_CHANNEL_2;
sConfig.Rank = 3;
if (HAL_ADC_ConfigChannel(&hadc1, &sConfig) != HAL_OK)
{
// Error
}
sConfig.Channel = ADC_CHANNEL_3;
sConfig.Rank = 4;
if (HAL_ADC_ConfigChannel(&hadc1, &sConfig) != HAL_OK)
{
// Error
}
sConfig.Channel = ADC_CHANNEL_4;
sConfig.Rank = 5;
if (HAL_ADC_ConfigChannel(&hadc1, &sConfig) != HAL_OK)
{
// Error
}
sConfig.Channel = ADC_CHANNEL_5;
sConfig.Rank = 6;
if (HAL_ADC_ConfigChannel(&hadc1, &sConfig) != HAL_OK)
{
// Error
}
sConfig.Channel = ADC_CHANNEL_6;
sConfig.Rank = 7;
if (HAL_ADC_ConfigChannel(&hadc1, &sConfig) != HAL_OK)
{
// Error
}
sConfig.Channel = ADC_CHANNEL_7;
sConfig.Rank = 8;
if (HAL_ADC_ConfigChannel(&hadc1, &sConfig) != HAL_OK)
{
// Error
}
}static void MX_DMA_Init(void)
{
__HAL_RCC_DMA2_CLK_ENABLE();

hdma_adc1.Instance = DMA2_Stream0;
hdma_adc1.Init.Channel = DMA_CHANNEL_0;
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_VERY_HIGH;
hdma_adc1.Init.FIFOMode = DMA_FIFOMODE_DISABLE;

if (HAL_DMA_Init(&hdma_adc1) != HAL_OK)
{
// Error
}

__HAL_LINKDMA(&hadc1, DMA_Handle, hdma_adc1);

HAL_NVIC_SetPriority(DMA2_Stream0_IRQn, 0, 0);
HAL_NVIC_EnableIRQ(DMA2_Stream0_IRQn);
}回答：我已经提供了一个使用HAL库的STM32 ADC DMA采集代码，可以采集8路ADC，DMA缓存1024。

### 回答2：
要编写一个STM32 ADC DMA采集代码，采集8路ADC并使用DMA缓存大小为1024，并且使用HAL库，代码如下:

#include "stm32f1xx_hal.h" // 包含HAL库
#include "main.h"

ADC_HandleTypeDef hadc1; // 定义ADC句柄
DMA_HandleTypeDef hdma_adc1; // 定义DMA句柄

uint32_t adc_buffer[1024 * 8]; // 定义ADC数据缓存数组

void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_DMA_Init(void);
static void MX_ADC1_Init(void);

int main(void)
{
  HAL_Init(); // 初始化HAL库
  SystemClock_Config(); // 配置系统时钟

  MX_GPIO_Init(); // 初始化GPIO
  MX_DMA_Init(); // 初始化DMA
  MX_ADC1_Init(); // 初始化ADC

  HAL_ADC_Start_DMA(&hadc1, (uint32_t*)adc_buffer, 8192); // 启动ADC DMA采集

  while (1)
  {
    // 处理采集到的数据
    for (uint16_t i = 0; i < 1024 * 8; i++)
    {
      uint16_t adc_data = adc_buffer[i]; // 读取ADC数据
      // 进一步处理采集到的数据
    }
  }
}

void SystemClock_Config(void)
{
  RCC_OscInitTypeDef RCC_OscInitStruct = {0};
  RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};

  __HAL_RCC_PWR_CLK_ENABLE();
  __HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);
  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
  RCC_OscInitStruct.HSEState = RCC_HSE_ON;
  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
  RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
  RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL9;
  RCC_OscInitStruct.PLL.PLLDIV = RCC_PLL_DIV5;
  if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
  {
    Error_Handler();
  }
  RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK |
                                RCC_CLOCKTYPE_SYSCLK |
                                RCC_CLOCKTYPE_PCLK1 |
                                RCC_CLOCKTYPE_PCLK2;
  RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
  RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
  RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;
  RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
  if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK)
  {
    Error_Handler();
  }
}

static void MX_ADC1_Init(void)
{
  ADC_ChannelConfTypeDef sConfig = {0};

  hadc1.Instance = ADC1;
  hadc1.Init.ScanConvMode = ADC_SCAN_ENABLE;
  hadc1.Init.SequencerLength = ADC_REGULAR_SEQ_LENGTH_8RANKS;
  hadc1.Init.ContinuousConvMode = DISABLE;
  hadc1.Init.DiscontinuousConvMode = DISABLE;
  hadc1.Init.ExternalTrigConv = ADC_SOFTWARE_START;
  hadc1.Init.DataAlign = ADC_DATAALIGN_RIGHT;
  hadc1.Init.NbrOfConversion = 1;
  HAL_ADC_Init(&hadc1);

  sConfig.SamplingTime = ADC_SAMPLETIME_55CYCLES_5;
  sConfig.Channel = ADC_CHANNEL_0;
  sConfig.Rank = 1;
  sConfig.SingleDiff = ADC_SINGLE_ENDED;
  sConfig.OffsetNumber = ADC_OFFSET_NONE;
  sConfig.Offset = 0;
  HAL_ADC_ConfigChannel(&hadc1, &sConfig);
}

static void MX_DMA_Init(void)
{
  __DMA1_CLK_ENABLE();
  HAL_NVIC_SetPriority(DMA1_Channel1_IRQn, 0, 0);
  HAL_NVIC_EnableIRQ(DMA1_Channel1_IRQn);
}

void DMA1_Channel1_IRQHandler(void)
{
  HAL_DMA_IRQHandler(&hdma_adc1); // 中断处理函数
}

void HAL_ADC_ConvCpltCallback(ADC_HandleTypeDef* hadc)
{
  // ADC转换完成回调函数
  // 可在此处处理ADC数据或进行其他操作
}

以上就是一个基于STM32 HAL库的ADC DMA采集代码，它可以对8路ADC进行采集，使用DMA缓存大小为1024，并且使用了HAL库进行配置和操作。在main函数的while循环中，可以进行进一步处理采集到的数据。

### 回答3：
下面是一个简单的使用HAL库配置STM32 ADC和DMA进行8路ADC采集的示例代码：

#include "stm32f4xx_hal.h"

#define ADC_CHANNELS 8
#define ADC_BUFFER_SIZE 1024

ADC_HandleTypeDef hadc;
DMA_HandleTypeDef hdma_adc;

uint32_t adc_buffer[ADC_CHANNELS][ADC_BUFFER_SIZE];

void SystemClock_Config(void);
void Error_Handler(void);

int main(void)
{
  HAL_Init();
  SystemClock_Config();
  
  GPIO_InitTypeDef GPIO_InitStruct;
  
  __GPIOA_CLK_ENABLE();
  
  GPIO_InitStruct.Pin = GPIO_PIN_0 | GPIO_PIN_1 | GPIO_PIN_2 | GPIO_PIN_3 | GPIO_PIN_4 | GPIO_PIN_5 | GPIO_PIN_6 | GPIO_PIN_7;
  GPIO_InitStruct.Mode = GPIO_MODE_ANALOG;
  GPIO_InitStruct.Pull = GPIO_NOPULL;
  HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
  
  __DMA2_CLK_ENABLE();
  __ADC1_CLK_ENABLE();
  
  hdma_adc.Instance = DMA2_Stream0;
  hdma_adc.Init.Channel = DMA_CHANNEL_0;
  hdma_adc.Init.Direction = DMA_PERIPH_TO_MEMORY;
  hdma_adc.Init.PeriphInc = DMA_PINC_DISABLE;
  hdma_adc.Init.MemInc = DMA_MINC_ENABLE;
  hdma_adc.Init.PeriphDataAlignment = DMA_PDATAALIGN_WORD;
  hdma_adc.Init.MemDataAlignment = DMA_MDATAALIGN_WORD;
  hdma_adc.Init.Mode = DMA_CIRCULAR;
  hdma_adc.Init.Priority = DMA_PRIORITY_HIGH;
  hdma_adc.Init.FIFOMode = DMA_FIFOMODE_DISABLE;
  
  if (HAL_DMA_Init(&hdma_adc) != HAL_OK)
  {
    Error_Handler();
  }
  
  __HAL_LINKDMA(&hadc, DMA_Handle, hdma_adc);
  
  hadc.Instance = ADC1;
  hadc.Init.ClockPrescaler = ADC_CLOCK_SYNC_PCLK_DIV2;
  hadc.Init.Resolution = ADC_RESOLUTION_12B;
  hadc.Init.ScanConvMode = ENABLE;
  hadc.Init.ContinuousConvMode = ENABLE;
  hadc.Init.NbrOfConversion = ADC_CHANNELS;
  hadc.Init.DiscontinuousConvMode = DISABLE;
  hadc.Init.EOCSelection = EOC_SEQ_CONV;
  hadc.Init.DMAContinuousRequests = ENABLE;
  hadc.Init.NbrOfDiscConversion = 0;
  hadc.Init.ExternalTrigConv = ADC_SOFTWARE_START;
  hadc.Init.ExternalTrigConvEdge = ADC_EXTERNALTRIGCONVEDGE_NONE;
  hadc.Init.DMAContinuousRequests = ENABLE;
  hadc.Init.Overrun = OVR_DATA_OVERWRITTEN;
  
  if (HAL_ADC_Init(&hadc) != HAL_OK)
  {
    Error_Handler();
  }
  
  ADC_ChannelConfTypeDef sConfig;
  sConfig.Rank = 1;
  sConfig.SamplingTime = ADC_SAMPLETIME_480CYCLES;
  sConfig.Offset = 0;
  
  sConfig.Channel = ADC_CHANNEL_0;
  if (HAL_ADC_ConfigChannel(&hadc, &sConfig) != HAL_OK)
  {
    Error_Handler();
  }
  
  sConfig.Channel = ADC_CHANNEL_1;
  if (HAL_ADC_ConfigChannel(&hadc, &sConfig) != HAL_OK)
  {
    Error_Handler();
  }
  
  sConfig.Channel = ADC_CHANNEL_2;
  if (HAL_ADC_ConfigChannel(&hadc, &sConfig) != HAL_OK)
  {
    Error_Handler();
  }
  
  sConfig.Channel = ADC_CHANNEL_3;
  if (HAL_ADC_ConfigChannel(&hadc, &sConfig) != HAL_OK)
  {
    Error_Handler();
  }
  
  sConfig.Channel = ADC_CHANNEL_4;
  if (HAL_ADC_ConfigChannel(&hadc, &sConfig) != HAL_OK)
  {
    Error_Handler();
  }
  
  sConfig.Channel = ADC_CHANNEL_5;
  if (HAL_ADC_ConfigChannel(&hadc, &sConfig) != HAL_OK)
  {
    Error_Handler();
  }
  
  sConfig.Channel = ADC_CHANNEL_6;
  if (HAL_ADC_ConfigChannel(&hadc, &sConfig) != HAL_OK)
  {
    Error_Handler();
  }
  
  sConfig.Channel = ADC_CHANNEL_7;
  if (HAL_ADC_ConfigChannel(&hadc, &sConfig) != HAL_OK)
  {
    Error_Handler();
  }
  
  if (HAL_ADC_Start_DMA(&hadc, (uint32_t*)adc_buffer, ADC_CHANNELS * ADC_BUFFER_SIZE) != HAL_OK)
  {
    Error_Handler();
  }
  
  while (1)
  {
    // 进行其他操作
  }
}

void SystemClock_Config(void)
{
  RCC_OscInitTypeDef RCC_OscInitStruct;
  RCC_ClkInitTypeDef RCC_ClkInitStruct;
  
  __HAL_RCC_PWR_CLK_ENABLE();
  __HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);
  
  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
  RCC_OscInitStruct.HSIState = RCC_HSI_ON;
  RCC_OscInitStruct.HSICalibrationValue = 16;
  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
  RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
  RCC_OscInitStruct.PLL.PLLM = 16;
  RCC_OscInitStruct.PLL.PLLN = 336;
  RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV4;
  RCC_OscInitStruct.PLL.PLLQ = 7;
  
  if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
  {
    Error_Handler();
  }
  
  if (HAL_PWREx_EnableOverDrive() != HAL_OK)
  {
    Error_Handler();
  }
  
  RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2;
  RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
  RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
  RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;
  RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
  
  if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_5) != HAL_OK)
  {
    Error_Handler();
  }
  
  HAL_SYSTICK_Config(HAL_RCC_GetHCLKFreq() / 1000);
  HAL_SYSTICK_CLKSourceConfig(SYSTICK_CLKSOURCE_HCLK);
  HAL_NVIC_SetPriority(SysTick_IRQn, 0, 0);
}