蓝桥杯嵌入式扩展板模块之两路采集

关于这个模块其实我在前面的博客中已经写的比较详细了，因此我在这只是放一下代码而已。
传送门：STM32ADC模块-温度传感器的单通道采集与多通道采集

硬件背景

双通道的实现

adc.c

#include "adc.h"
u16 Adc2_Number[2];

void Adc_Init(void){
	ADC_InitTypeDef ADC_InitStructure;
	DMA_InitTypeDef DMA_InitStructure;
	GPIO_InitTypeDef GPIO_InitStructure;

	RCC_ADCCLKConfig(RCC_PCLK2_Div6); 
	RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA1, ENABLE);
	RCC_APB2PeriphClockCmd(RCC_APB2Periph_ADC1|RCC_APB2Periph_GPIOA|RCC_APB2Periph_AFIO, ENABLE);

	GPIO_InitStructure.GPIO_Pin = GPIO_Pin_4|GPIO_Pin_5;
	GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN;
	GPIO_Init(GPIOA, &GPIO_InitStructure);

	DMA_DeInit(DMA1_Channel1);
	DMA_InitStructure.DMA_PeripheralBaseAddr = ADC1_DR_Address;
	DMA_InitStructure.DMA_MemoryBaseAddr = (uint32_t)Adc2_Number;
	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);

	ADC_InitStructure.ADC_Mode = ADC_Mode_Independent;
	ADC_InitStructure.ADC_ScanConvMode = ENABLE;
	ADC_InitStructure.ADC_ContinuousConvMode = ENABLE;
	ADC_InitStructure.ADC_ExternalTrigConv = ADC_ExternalTrigConv_None;
	ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right;
	ADC_InitStructure.ADC_NbrOfChannel = 2;
	ADC_Init(ADC1, &ADC_InitStructure);

	ADC_RegularChannelConfig(ADC1, ADC_Channel_4, 1, ADC_SampleTime_239Cycles5);
	ADC_RegularChannelConfig(ADC1, ADC_Channel_5, 2, 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));
	ADC_SoftwareStartConvCmd(ADC1, ENABLE);
}

adc.h

#ifndef __ADC_H
#define __ADC_H

#include "main.h"
#define ADC1_DR_Address    ((uint32_t)0x4001244C)
extern u16 Adc2_Number[2];
void Adc_Init(void);

#endif