用stm32f103采集方波 三角波 正弦波 代码

下面是采集方波、三角波、正弦波的STM32F103代码，使用的是ADC1进行采集：

#include "stm32f10x.h"

#define ADC1_DR_Address ((uint32_t)0x4001244C)

void ADC1_GPIO_Config(void);
void ADC1_Mode_Config(void);

int main(void)
{
    GPIO_InitTypeDef GPIO_InitStructure;
    ADC_InitTypeDef ADC_InitStructure;
    DMA_InitTypeDef DMA_InitStructure;
    
    RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_ADC1, ENABLE);
    RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA1, ENABLE);
    
    ADC1_GPIO_Config();
    ADC1_Mode_Config();
    
    // 配置DMA
    DMA_DeInit(DMA1_Channel1);
    DMA_InitStructure.DMA_PeripheralBaseAddr = ADC1_DR_Address;
    DMA_InitStructure.DMA_MemoryBaseAddr = (uint32_t)&ADC_Value;
    DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralSRC;
    DMA_InitStructure.DMA_BufferSize = 256;
    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_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);
    
    while(1)
    {
        // 等待DMA采集完成
        while(!DMA_GetFlagStatus(DMA1_FLAG_TC1));
        DMA_ClearFlag(DMA1_FLAG_TC1);
        
        // 处理采集数据
        for(uint16_t i = 0; i < 256; i++)
        {
            // 处理方波、三角波、正弦波
            // ...
        }
    }
}

void ADC1_GPIO_Config(void)
{
    GPIO_InitTypeDef GPIO_InitStructure;
    
    // ADC采集引脚配置
    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN;
    GPIO_Init(GPIOA, &GPIO_InitStructure);
}

void ADC1_Mode_Config(void)
{
    ADC_InitTypeDef ADC_InitStructure;
    
    // ADC1配置
    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);
    
    // ADC1通道配置
    ADC_RegularChannelConfig(ADC1, ADC_Channel_0, 1, ADC_SampleTime_7Cycles5);
}

需要注意的是，这里只给出了采集部分的代码，处理采集数据的部分需要自己补充，根据采集到的数据进行相应的处理即可。