灵动微 MM32 多路ADC-DMA配置

    ADC_ANY_NUM_Config(ADC1,3);//一共4通道

    ADC1->ANYCR |=  ADC_ANY_CR_CHANY_MDEN;//开启任意通道

        

        ///设置通道的顺序

    ADC_ANY_CH_Config(ADC1,0,ADC_Channel_0);

    ADC_ANY_CH_Config(ADC1,1,ADC_Channel_1);

    ADC_ANY_CH_Config(ADC1,2,ADC_Channel_2);

    ADC_ANY_CH_Config(ADC1,3,ADC_Channel_Vrefint);

void adc_dma_init()

{

    DMA_InitTypeDef DMA_InitStruct;



    RCC_AHBPeriphClockCmd(RCC_AHBENR_DMA1, ENABLE);

    DMA_DeInit(DMA1_Channel1);

    DMA_StructInit(&DMA_InitStruct);

    //DMA transfer peripheral address

    DMA_InitStruct.DMA_PeripheralBaseAddr = (u32) & (ADC1->DR);

    //DMA transfer memory address

    DMA_InitStruct.DMA_MemoryBaseAddr = (u32)&adcBuf;

    //DMA transfer direction from peripheral to memory

    DMA_InitStruct.DMA_DIR = DMA_DIR_PeripheralSRC;

    //DMA cache size

    DMA_InitStruct.DMA_BufferSize = ADC_DMA_BUF_SIZE;

    //After receiving the data, the peripheral address is forbidden to move

    //backward

    DMA_InitStruct.DMA_PeripheralInc = DMA_PeripheralInc_Disable;

    //After receiving the data, the memory address is shifted backward

    DMA_InitStruct.DMA_MemoryInc = DMA_MemoryInc_Enable;

    //Define the peripheral data width to 16 bits

    DMA_InitStruct.DMA_PeripheralDataSize = DMA_PeripheralDataSize_HalfWord;

    //Define the memory data width to 16 bits

    DMA_InitStruct.DMA_MemoryDataSize = DMA_MemoryDataSize_HalfWord;

    //Cycle conversion mode

    DMA_InitStruct.DMA_Mode = DMA_Mode_Circular;

    //DMA priority is high

    DMA_InitStruct.DMA_Priority = DMA_Priority_High;

    //M2M mode is disabled

    DMA_InitStruct.DMA_M2M = DMA_M2M_Disable;

    DMA_InitStruct.DMA_Auto_reload = DMA_Auto_Reload_Disable;

    DMA_Init(DMA1_Channel1, &DMA_InitStruct);

    DMA_Cmd(DMA1_Channel1, ENABLE);



    ADC_InitTypeDef  ADC_InitStruct;

    ADC_StructInit(&ADC_InitStruct);



    //Initialize PA1 to analog input mode

    //Enable ADC clock

    RCC_APB2PeriphClockCmd(RCC_APB2ENR_ADC1, ENABLE);

    ADC_InitStruct.ADC_Resolution = ADC_Resolution_12b;

    //ADC prescale factor

    ADC_InitStruct.ADC_PRESCARE = ADC_PCLK2_PRESCARE_17;

    //Set ADC mode to continuous conversion mode

    ADC_InitStruct.ADC_Mode = ADC_Mode_Continue;

    //AD data right-justified

    ADC_InitStruct.ADC_DataAlign = ADC_DataAlign_Right;

    ADC_InitStruct.ADC_ExternalTrigConv = ADC_ExternalTrigConv_T1_CC1;

    ADC_Init(ADC1, &ADC_InitStruct);



    GPIO_InitTypeDef GPIO_InitStruct;

    RCC_AHBPeriphClockCmd(RCC_AHBENR_GPIOA, ENABLE);

    RCC_AHBPeriphClockCmd(RCC_AHBENR_GPIOC, ENABLE);

    GPIO_StructInit(&GPIO_InitStruct);

    GPIO_InitStruct.GPIO_Pin  =  GPIO_Pin_0|GPIO_Pin_1|GPIO_Pin_2|GPIO_Pin_3|GPIO_Pin_4|GPIO_Pin_5|GPIO_Pin_6;

    GPIO_InitStruct.GPIO_Speed = GPIO_Speed_50MHz;

    GPIO_InitStruct.GPIO_Mode = GPIO_Mode_AIN;

    GPIO_Init(GPIOA, &GPIO_InitStruct);



    //PC3  ADC_IN13

    GPIO_InitStruct.GPIO_Pin  =  GPIO_Pin_3;

    GPIO_Init(GPIOC, &GPIO_InitStruct);



    //Enable the channel

    ADC_RegularChannelConfig(ADC1, ADC_Channel_0, 0, ADC_Samctl_240_5);

    ADC_RegularChannelConfig(ADC1, ADC_Channel_1, 0, ADC_Samctl_240_5);

    ADC_RegularChannelConfig(ADC1, ADC_Channel_2, 0, ADC_Samctl_240_5);

   // ADC_RegularChannelConfig(ADC1, ADC_Channel_4, 0, ADC_Samctl_240_5);

   // ADC_RegularChannelConfig(ADC1, ADC_Channel_5, 0, ADC_Samctl_240_5);

    //ADC_RegularChannelConfig(ADC1, ADC_Channel_5, 0, ADC_Samctl_240_5);

    //ADC_RegularChannelConfig(ADC1, ADC_Channel_6, 0, ADC_Samctl_240_5);

   // ADC_RegularChannelConfig(ADC1, 13, 0, ADC_Samctl_240_5);//通道13

    ADC_RegularChannelConfig(ADC1, ADC_Channel_Vrefint, 0, ADC_Samctl_240_5);



    

    ADC_ANY_CH_Config(ADC1,0,ADC_Channel_0);

    ADC_ANY_CH_Config(ADC1,1,ADC_Channel_1);

    ADC_ANY_CH_Config(ADC1,2,ADC_Channel_2);

    ADC_ANY_CH_Config(ADC1,3,ADC_Channel_Vrefint);



    ADC_ANY_NUM_Config(ADC1,3);//

    ADC1->ANYCR |=  ADC_ANY_CR_CHANY_MDEN;//开启任意通道



    ADC_TempSensorVrefintCmd(ENABLE);





    //Enable ADCDMA

    ADC_DMACmd(ADC1, ENABLE);

    //Enable AD conversion

    ADC_Cmd(ADC1, ENABLE);



    ADC_SoftwareStartConvCmd(ADC1, ENABLE);



}