#include "mm32.h"



#define ADC_CHANNEL 0

#define ADC_SAMPLE_COUNT 10



uint16_t adc_data[ADC_SAMPLE_COUNT];



void ADC_DMA_Init()

{

    // 初始化ADC

    ADC_InitTypeDef ADC_InitStruct;

    ADC_InitStruct.ADC_Mode = ADC_Mode_Continue;

    ADC_InitStruct.ADC_ScanMode = DISABLE;

    ADC_InitStruct.ADC_DataAlign = ADC_DataAlign_Right;

    ADC_InitStruct.ADC_ContinuousConvMode = ENABLE;

    ADC_InitStruct.ADC_ExternalTrigConv = ADC_ExternalTrigConv_T1_CC1;

    ADC_InitStruct.ADC_ExternalTrigConvEdge = ADC_ExternalTrigConvEdge_None;

    ADC_InitStruct.ADC_NbrOfChannel = 1;

    ADC_Init(ADC1, &ADC_InitStruct);



    // 配置ADC通道

    ADC_RegularChannelConfig(ADC1, ADC_CHANNEL, 1, ADC_Samctl_239_5);



    // 初始化DMA

    DMA_InitTypeDef DMA_InitStruct;

    DMA_InitStruct.DMA_PeripheralBaseAddr = (uint32_t)(&(ADC1->DR));

    DMA_InitStruct.DMA_MemoryBaseAddr = (uint32_t)adc_data;

    DMA_InitStruct.DMA_Direction = DMA_DIR_PeripheralSRC;

    DMA_InitStruct.DMA_BufferSize = ADC_SAMPLE_COUNT;

    DMA_InitStruct.DMA_PeripheralInc = DMA_PeripheralInc_Disable;

    DMA_InitStruct.DMA_MemoryInc = DMA_MemoryInc_Enable;

    DMA_InitStruct.DMA_PeripheralDataSize = DMA_PeripheralDataSize_HalfWord;

    DMA_InitStruct.DMA_MemoryDataSize = DMA_MemoryDataSize_HalfWord;

    DMA_InitStruct.DMA_Mode = DMA_Mode_Circular;

    DMA_InitStruct.DMA_Priority = DMA_Priority_High;

    DMA_InitStruct.DMA_M2M = DMA_M2M_Disable;

    DMA_Init(DMA1_Channel1, &DMA_InitStruct);



    // 启动DMA

    DMA_Cmd(DMA1_Channel1, ENABLE);



    // 启动ADC

    ADC_Cmd(ADC1, ENABLE);

    ADC_DMACmd(ADC1, ENABLE);

}



int main()

{

    // 初始化系统时钟等



    // 初始化ADC和DMA

    ADC_DMA_Init();



    while (1)

    {

        // 等待DMA传输完成

        while (!DMA_GetFlagStatus(DMA1_FLAG_TC1))

        {

        }



        // 数据处理

        for (int i = 0; i < ADC_SAMPLE_COUNT; i++)

        {

            // 处理adc_data[i]

        }



        // 清除DMA传输完成标志

        DMA_ClearFlag(DMA1_FLAG_TC1);

    }

}