电赛菜鸟营培训（四）——STM32F103CB之ADC转换

一、ADC概念

      实现模拟信号转换成数字信号就是这样子= =

 

二、代码框架

#include "stm32f10x.h"

void delay(u32 kk)

{

  while(kk--);

}

int main()

{

  u16 ad=0,adc0=0;  

    

  GPIO_InitTypeDef GPIO_InitStructure;

  ADC_InitTypeDef ADC_InitStructure;



  RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA|RCC_APB2Periph_ADC1, ENABLE);

    

  GPIO_InitStructure.GPIO_Pin =  GPIO_Pin_0;

  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN;

  GPIO_Init(GPIOA, &GPIO_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_1Cycles5); 

    ADC_Cmd(ADC1,ENABLE);

    ADC_SoftwareStartConvCmd(ADC1,ENABLE);

    

  while(1)

  {

        while(ADC_GetFlagStatus(ADC1, ADC_FLAG_EOC)==RESET); 

        ad=ADC_GetConversionValue(ADC1);

        adc0=ad;

  }



}