#include "adc.h"#define ADC1_DR_Address    ((u32)0x40012400+0x4c)                      //定义ADC1地址volatile uint16_t ADCConvertedValue[2];                                //定义内存地址数组
float AD_Value[2];static void ADC1_GPIO_Config(void)
{GPIO_InitTypeDef GPIO_InitStructure;/* Enable ADC1 and GPIOC clock */RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO | RCC_APB2Periph_GPIOB, ENABLE);/* Configure PC.01  as analog input */GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0 |GPIO_Pin_1;GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN;GPIO_Init(GPIOB, &GPIO_InitStructure);                             　　// PB0，PB1 ,输入时不用设置速率
}static void ADC1_DMA_Config(void)
{DMA_InitTypeDef DMA_InitStructure;/* DMA channel1 configuration */RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA1,ENABLE);                  　　//使能DMA传输
    DMA_DeInit(DMA1_Channel1);DMA_InitStructure.DMA_PeripheralBaseAddr = (u32)&(ADC1->DR);    　　　　//ADC地址DMA_InitStructure.DMA_MemoryBaseAddr = (u32)&ADCConvertedValue; 　　　　//内存地址DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralSRC;DMA_InitStructure.DMA_BufferSize = 2; DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;　　　　//外设地址固定DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable;            　　//内存地址不固定DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_HalfWord;    //半字DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_HalfWord;DMA_InitStructure.DMA_Mode = DMA_Mode_Circular;                       //循环传输DMA_InitStructure.DMA_Priority = DMA_Priority_High;DMA_InitStructure.DMA_M2M = DMA_M2M_Disable;DMA_Init(DMA1_Channel1, &DMA_InitStructure);
}static void ADC1_Config(void)
{/* ADC1 configuration */ADC_InitTypeDef ADC_InitStructure;ADC_DeInit(ADC1);RCC_APB2PeriphClockCmd(RCC_APB2Periph_ADC1,ENABLE);                　　//使能ADC1时钟ADC_InitStructure.ADC_Mode = ADC_Mode_Independent;                　　 //独立ADC模式ADC_InitStructure.ADC_ScanConvMode = ENABLE;                      　　 //启动扫描模式，扫描模式用于多通道采集ADC_InitStructure.ADC_ContinuousConvMode = ENABLE;                　　 //开启连续转换模式，即不停地进行ADC转换ADC_InitStructure.ADC_ExternalTrigConv = ADC_ExternalTrigConv_None;    //不使用外部触发转换ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right;             　　//采集数据右对齐ADC_InitStructure.ADC_NbrOfChannel = 2;                             　 //要转换的通道数目2ADC_Init(ADC1, &ADC_InitStructure);/*配置ADC时钟，为PCLK2的6分频，即12Hz*/RCC_ADCCLKConfig(RCC_PCLK2_Div6); /*配置ADC1的通道8,9为239.5个采样周期，序列为1，2*/ ADC_RegularChannelConfig(ADC1, ADC_Channel_8, 1 , ADC_SampleTime_239Cycles5);ADC_RegularChannelConfig(ADC1, ADC_Channel_9, 2 , ADC_SampleTime_239Cycles5);/* Enable ADC1 DMA */ADC_DMACmd(ADC1, ENABLE);    /* Enable ADC1 */ADC_Cmd(ADC1, ENABLE);/*复位校准寄存器 */   ADC_ResetCalibration(ADC1);/*等待校准寄存器复位完成 */while(ADC_GetResetCalibrationStatus(ADC1));    /* ADC校准 */ADC_StartCalibration(ADC1);/* 等待校准完成*/while(ADC_GetCalibrationStatus(ADC1));
}void adc1_start(void)
{ADC_SoftwareStartConvCmd(ADC1, ENABLE);                         //ADC1软计启动DMA_Cmd(DMA1_Channel1, ENABLE);                                 //使能DMA通道1
}void ADC1_Init(void)
{ADC1_GPIO_Config();ADC1_DMA_Config();ADC1_Config();
}

#ifndef __ADC_H
#define __ADC_H#include <stm32f10x.h>void ADC1_Init(void);
void adc1_start(void);#endif  /*ADC_H*/

#include "adc.h"extern volatile uint16_t ADCConvertedValue[2];                  //定义内存地址数组
extern float AD_Value[2];int main(void)
{    NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);             //设置中断优先级组为组2，2位抢占优先级，2位响应优先级USART1_Int();                                               //串口初始化
    ADC1_Init();                                                //ADC1初始化
    adc1_start();SysTick_Init();                                             //系统时钟初始化while(1){        AD_Value[0]=(float)ADCConvertedValue[0]/4096*3.3;    　　//获取电压值AD_Value[1]=(float)ADCConvertedValue[1]/4096*3.3;    　　//获取电流值        printf("\r\n电压值为：%f V\r\n",AD_Value[0]);printf("\r\n电流值为：%f A\r\n",(AD_Value[1]-2.5)/0.185);}
}