基于STM32标准库的交流信号的双ADC_DMA采样代码

好的，下面是基于STM32标准库的交流信号的双ADC_DMA采样代码，仅供参考：

#include "stm32f10x.h"

#define ADC1_DR_Address    ((uint32_t)0x4001244C)

__IO uint16_t ADC_ConvertedValue[2];

void RCC_Configuration(void)
{
  RCC_ADCCLKConfig(RCC_PCLK2_Div6);
  RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA1, ENABLE);
  RCC_APB2PeriphClockCmd(RCC_APB2Periph_ADC1 | RCC_APB2Periph_GPIOA, ENABLE);
}

void GPIO_Configuration(void)
{
  GPIO_InitTypeDef GPIO_InitStructure;

  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_1;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN;
  GPIO_Init(GPIOA, &GPIO_InitStructure);
}

void DMA_Configuration(void)
{
  DMA_InitTypeDef DMA_InitStructure;

  DMA_DeInit(DMA1_Channel1);
  DMA_InitStructure.DMA_PeripheralBaseAddr = ADC1_DR_Address;
  DMA_InitStructure.DMA_MemoryBaseAddr = (uint32_t)&ADC_ConvertedValue;
  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_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);

  DMA_Cmd(DMA1_Channel1, ENABLE);
}

void ADC_Configuration(void)
{
  ADC_InitTypeDef ADC_InitStructure;

  ADC_InitStructure.ADC_Mode = ADC_Mode_Independent;
  ADC_InitStructure.ADC_ScanConvMode = DISABLE;
  ADC_InitStructure.ADC_ContinuousConvMode = ENABLE;
  ADC_InitStructure.ADC_ExternalTrigConv = ADC_ExternalTrigConv_None;
  ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right;
  ADC_InitStructure.ADC_NbrOfChannel = 1;
  ADC_Init(ADC1, &ADC_InitStructure);

  ADC_RegularChannelConfig(ADC1, ADC_Channel_0, 1, ADC_SampleTime_239Cycles5);

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

  ADC_ResetCalibration(ADC1);
  while(ADC_GetResetCalibrationStatus(ADC1));

  ADC_StartCalibration(ADC1);
  while(ADC_GetCalibrationStatus(ADC1));
}

int main(void)
{
  RCC_Configuration();
  GPIO_Configuration();
  DMA_Configuration();
  ADC_Configuration();

  while (1);
}

以上代码实现了双通道ADC的DMA采样，其中DMA通道1用于将ADC转换的数据存储到数组ADC_ConvertedValue中，ADC通道0用于采集交流信号。为了便于理解，这里只展示了配置代码，没有展示数据处理部分的代码。如果需要完整的代码，可以自行搜索。