ADC 库函数中断 代码

以下是一个基于STM32的ADC库函数中断代码示例：

#include "stm32f4xx.h"

ADC_InitTypeDef ADC_InitStructure;
GPIO_InitTypeDef GPIO_InitStructure;
NVIC_InitTypeDef NVIC_InitStructure;

uint16_t ADCConvertedValue;

void ADC_Configuration(void)
{
  /* ADC1 configuration ------------------------------------------------------*/
  /* GPIOC clock enable */
  RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOC, ENABLE);
  /* ADC1 clock enable */
  RCC_APB2PeriphClockCmd(RCC_APB2Periph_ADC1, ENABLE);

  /* Configure ADC Channel11 as analog input */
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_1;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AN;
  GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
  GPIO_Init(GPIOC, &GPIO_InitStructure);

  /* ADC Common Init */
  ADC_CommonInitTypeDef ADC_CommonInitStructure;
  ADC_CommonInitStructure.ADC_Mode = ADC_Mode_Independent;
  ADC_CommonInitStructure.ADC_Prescaler = ADC_Prescaler_Div4;
  ADC_CommonInitStructure.ADC_DMAAccessMode = ADC_DMAAccessMode_Disabled;
  ADC_CommonInitStructure.ADC_TwoSamplingDelay = ADC_TwoSamplingDelay_5Cycles;
  ADC_CommonInit(&ADC_CommonInitStructure);

  /* ADC1 Init */
  ADC_InitStructure.ADC_Resolution = ADC_Resolution_12b;
  ADC_InitStructure.ADC_ScanConvMode = DISABLE;
  ADC_InitStructure.ADC_ContinuousConvMode = DISABLE;
  ADC_InitStructure.ADC_ExternalTrigConvEdge = ADC_ExternalTrigConvEdge_None;
  ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right;
  ADC_InitStructure.ADC_NbrOfConversion = 1;
  ADC_Init(ADC1, &ADC_InitStructure);

  /* ADC1 regular channel11 configuration */
  ADC_RegularChannelConfig(ADC1, ADC_Channel_11, 1, ADC_SampleTime_3Cycles);

  /* Enable ADC1 */
  ADC_Cmd(ADC1, ENABLE);
}

void NVIC_Configuration(void)
{
  /* Configure and enable ADC interrupt */
  NVIC_InitStructure.NVIC_IRQChannel = ADC_IRQn;
  NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
  NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
  NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
  NVIC_Init(&NVIC_InitStructure);
}

void ADC_IRQHandler(void)
{
  /* Check if the ADC1 interrupt flag is set */
  if(ADC_GetITStatus(ADC1, ADC_IT_EOC) != RESET)
  {
    /* Read ADC value */
    ADCConvertedValue = ADC_GetConversionValue(ADC1);

    /* Clear the ADC1 interrupt flag */
    ADC_ClearITPendingBit(ADC1, ADC_IT_EOC);
  }
}

int main(void)
{
  /* ADC configuration */
  ADC_Configuration();

  /* NVIC configuration */
  NVIC_Configuration();

  /* Start ADC conversion */
  ADC_SoftwareStartConv(ADC1);

  while(1)
  {
    // Do main loop processing here
  }
}