Microcontroller STM32F4 DMA不'；t控制ADC通道

我正在尝试设置我的STM32F407发现板，以便使用DMA控制器从ADC1读取多个ADC通道。我可以轻松地一次读取一个模拟值而不使用DMA，但只要我为ADC启用DMA，

ADC1->DR

始终为0，并且

ADC\u vals

用零填充。此外，它在（！ADC_GetFlagStatus（ADC1，ADC_FLAG_EOC））时挂起

编辑：显示
DMA\u GetCmdStatus
正在返回禁用状态。有什么想法吗

有没有办法启动ADC或我缺少的东西

//设置adc1:in1,2,3,8,9,15
RCC_APB2PeriphLockCmd（RCC_APB2Periph_ADC1，启用）//apb2外围总线上的adc1
ADC_InitTypeDef ADC；
ADC_DeInit（）//将adc设置为默认状态
adc.adc\u DataAlign=adc\u DataAlign\u Right；
adc.adc_分辨率=adc_分辨率_12b//12位=4096
adc.adc_ContinuousConvMode=启用；
adc.adc_ExternalTrigConv=adc_ExternalTrigConv_T1_CC1；
adc.adc_externaltrigconverge=adc_externaltrigconverge_None；
adc.adc_nbrofversion=NUM_adc；
adc.adc_ScanConvMode=启用；
ADC_Init（ADC1和ADC）；
ADC\U DMACmd（ADC1，启用）//为dma启用adc。当这行被删除时，我在ADC1->DR上看到数据
ADC_Cmd（ADC1，启用）；
ADC_RegularChannelConfig（ADC1、ADC_Channel_1,1、ADC_SampleTime_144周期）//1:1710, 0
//ADC_RegularChannelConfig（ADC1、ADC_Channel_2,2、ADC_SampleTime_144周期）//2:1710, 0
//ADC_RegularChannelConfig（ADC1、ADC_Channel_3,3、ADC_采样时间_144个周期）//3:1710, 0
ADC_RegularChannelConfig（ADC1，ADC_通道8,4，ADC_采样时间144个周期）//8:3520
ADC_RegularChannelConfig（ADC1、ADC_Channel_9,5、ADC_SampleTime_144周期）//9:1000
//ADC_RegularChannelConfig（ADC1、ADC_Channel_15,6、ADC_SampleTime_144周期）//15:3920
//多个adc通道的DMA：
RCC_AHB1PeriphLockCmd（RCC_AHB1Periph_DMA1，启用）//dma1时钟使能
DMA_InitTypeDef DMA；
DMA_脱硝（DMA2_-0）//将DMA2流0重置为默认值
dma.dma_Channel=dma_Channel_0；
dma.dma_peripheraldbaseaddr=（uint32_t）和（ADC1->DR）；
dma.dma_Memory0BaseAddr=（uint32_t）和adc_vals[0]；
dma.dma_DIR=dma_DIR_外设存储器；
dma.dma_BufferSize=NUM_ADC；
dma.dma_PeripheralInc=dma_PeripheralInc_Disable；
dma.dma_MemoryInc=dma_MemoryInc_Enable；
dma.dma_peripheraldasize=dma_peripheraldasize_半字；
dma.dma_MemoryDataSize=dma_MemoryDataSize_半字；
dma.dma_Mode=dma_Mode_循环；
dma.dma_Priority=dma_Priority_High；
dma.dma_FIFOMode=dma_FIFOMode_Disable；
dma.dma_FIFOThreshold=dma_FIFOThreshold_半满；
dma.dma_MemoryBurst=dma_MemoryBurst_Single；
dma.dma_PeripheralBurst=dma_PeripheralBurst_Single；
DMA_Init（DMA2_流0和DMA）；
DMA_UITConfig（DMA2 U Stream0，DMA IT| DMA| DMA IT_uHT，ENABLE）//启用DMA流半/传输完成中断
DMA_Cmd（DMA2_Stream0，启用）//DMA2_Stream0启用
//dma传输完成中断：
NVIC_InitTypeDef NVIC；
//启用DMA1通道IRQ通道
nvic.nvic_IRQChannel=DMA2_Stream0_IRQn；
nvic.nvic_IRQChannelPreemptionPriority=0；
nvic.nvic_IRQChannelSubPriority=0；
nvic.nvic_IRQChannelCmd=启用；
NVIC_Init（&NVIC）；
ADC_软件STARTCONV（ADC1）//启动adc转换
至少您可以尝试：


更改DMA_外围设备公司

以启用

使用

ADC\u DMARequestAfterLastTransferCmd（ADC，启用）

初始化

ADC\u CommonInitTypeDef

初始化GPIO，如果不是

此外，在所有配置之前启用ADC是很奇怪的

---

在我看来，最好的方法是从标准外设库复制粘贴“ADC_DualModeRegulSimu”示例。它包含的代码非常漂亮，完全符合您的需要。

出现了许多错误。以下是我为其他有同样问题的人编写的工作代码：

    //DMA for multiple adc channels:
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_DMA2, ENABLE);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_ADC1, ENABLE); //ADC1 on APB2 peripheral bus

DMA_InitTypeDef dma; //dma2/stream0/channel0
dma.DMA_Channel = DMA_Channel_0; 
dma.DMA_Memory0BaseAddr = (uint32_t)&adcVal;
dma.DMA_PeripheralBaseAddr = (uint32_t)&(ADC1->DR);
dma.DMA_DIR = DMA_DIR_PeripheralToMemory;
dma.DMA_BufferSize = 6;
dma.DMA_PeripheralInc = DMA_PeripheralInc_Disable;
dma.DMA_MemoryInc = DMA_MemoryInc_Enable;
dma.DMA_PeripheralDataSize = DMA_PeripheralDataSize_HalfWord;
dma.DMA_MemoryDataSize = DMA_MemoryDataSize_HalfWord;
dma.DMA_Mode = DMA_Mode_Circular;
dma.DMA_Priority = DMA_Priority_High;
dma.DMA_FIFOMode = DMA_FIFOMode_Enable;              
dma.DMA_FIFOThreshold = DMA_FIFOThreshold_HalfFull;
dma.DMA_MemoryBurst = DMA_MemoryBurst_Single;
dma.DMA_PeripheralBurst = DMA_PeripheralBurst_Single;
DMA_Init(DMA2_Stream0, &dma);
DMA_Cmd(DMA2_Stream0, ENABLE); //dMA2_Stream0 enable

//analog inputs: PA1,2,3, PC5, PB0,1
gpio.GPIO_Pin = GPIO_Pin_1 | GPIO_Pin_2 | GPIO_Pin_3;
gpio.GPIO_Mode = GPIO_Mode_AN;
gpio.GPIO_PuPd = GPIO_PuPd_NOPULL;
GPIO_Init(GPIOA, &gpio);
gpio.GPIO_Pin = GPIO_Pin_5;
GPIO_Init(GPIOC, &gpio);
gpio.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_1;
GPIO_Init(GPIOB, &gpio);

//ADC common init
ADC_CommonInitTypeDef adcCommon;
adcCommon.ADC_Mode = ADC_Mode_Independent;
adcCommon.ADC_Prescaler = ADC_Prescaler_Div2;
adcCommon.ADC_DMAAccessMode = ADC_DMAAccessMode_Disabled;
adcCommon.ADC_TwoSamplingDelay = ADC_TwoSamplingDelay_5Cycles;
ADC_CommonInit(&adcCommon);

//setup adc1: in1,2,3,8,9,15
ADC_InitTypeDef adc;
ADC_DeInit(); //set adc to default state
adc.ADC_DataAlign = ADC_DataAlign_Right; //mask 0b 00001111 11111111
adc.ADC_Resolution = ADC_Resolution_12b;//12 bit = 4096
adc.ADC_ContinuousConvMode = ENABLE; //continuous: constantly converting data - can always read register
adc.ADC_ExternalTrigConv = ADC_ExternalTrigConv_T1_CC1;//external trigger conversion (?)
adc.ADC_ExternalTrigConvEdge = ADC_ExternalTrigConvEdge_None;
adc.ADC_NbrOfConversion = 6;
adc.ADC_ScanConvMode = ENABLE;//single/multichannel
ADC_Init(ADC1,&adc);

ADC_RegularChannelConfig(ADC1,ADC_Channel_1,1,ADC_SampleTime_56Cycles); ADC_RegularChannelConfig(ADC1,ADC_Channel_2,2,ADC_SampleTime_56Cycles);
ADC_RegularChannelConfig(ADC1,ADC_Channel_3,3,ADC_SampleTime_56Cycles);
ADC_RegularChannelConfig(ADC1,ADC_Channel_8,4,ADC_SampleTime_56Cycles);
ADC_RegularChannelConfig(ADC1,ADC_Channel_9,5,ADC_SampleTime_56Cycles);
ADC_RegularChannelConfig(ADC1,ADC_Channel_15,6,ADC_SampleTime_56Cycles);


ADC_DMARequestAfterLastTransferCmd(ADC1, ENABLE); //single adc repeated

ADC_DMACmd(ADC1, ENABLE);
ADC_Cmd(ADC1,ENABLE);

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感谢代码ethan，使minor mod适合我的情况，并作为通用功能工作

volatile uint16_t adcVal[6];

void Setup_DMA_ADC( void )
{
    GPIO_InitTypeDef gpio;
    //DMA for multiple adc channels:
    RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_DMA2, ENABLE);
    RCC_APB2PeriphClockCmd(RCC_APB2Periph_ADC1, ENABLE); //ADC1 on APB2 peripheral bus
    RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOA, ENABLE);
    RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOB, ENABLE);
    RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOC, ENABLE);

    DMA_InitTypeDef dma; //dma2/stream0/channel0
    dma.DMA_Channel = DMA_Channel_0;
    dma.DMA_Memory0BaseAddr = (uint32_t) &adcVal[0];
    dma.DMA_PeripheralBaseAddr = (uint32_t)&(ADC1->DR);
    dma.DMA_DIR = DMA_DIR_PeripheralToMemory;
    dma.DMA_BufferSize = 6;
    dma.DMA_PeripheralInc = DMA_PeripheralInc_Disable;
    dma.DMA_MemoryInc = DMA_MemoryInc_Enable;
    dma.DMA_PeripheralDataSize = DMA_PeripheralDataSize_HalfWord;
    dma.DMA_MemoryDataSize = DMA_MemoryDataSize_HalfWord;
    dma.DMA_Mode = DMA_Mode_Circular;
    dma.DMA_Priority = DMA_Priority_High;
    dma.DMA_FIFOMode = DMA_FIFOMode_Enable;
    dma.DMA_FIFOThreshold = DMA_FIFOThreshold_HalfFull;
    dma.DMA_MemoryBurst = DMA_MemoryBurst_Single;
    dma.DMA_PeripheralBurst = DMA_PeripheralBurst_Single;
    DMA_Init(DMA2_Stream0, &dma);
    DMA_Cmd(DMA2_Stream0, ENABLE); //dMA2_Stream0 enable

    //analog inputs: PA1,2,3, PC5, PB0,1
    GPIO_StructInit(&gpio);
    gpio.GPIO_Pin = GPIO_Pin_1 | GPIO_Pin_2 | GPIO_Pin_3;
    gpio.GPIO_Mode = GPIO_Mode_AN;
    gpio.GPIO_PuPd = GPIO_PuPd_NOPULL;
    GPIO_Init(GPIOA, &gpio);
    gpio.GPIO_Pin = GPIO_Pin_5;
    GPIO_Init(GPIOC, &gpio);
    gpio.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_1;
    GPIO_Init(GPIOB, &gpio);

    //ADC common init
    ADC_CommonInitTypeDef adcCommon;
    adcCommon.ADC_Mode = ADC_Mode_Independent;
    adcCommon.ADC_Prescaler = ADC_Prescaler_Div2;
    adcCommon.ADC_DMAAccessMode = ADC_DMAAccessMode_Disabled;
    adcCommon.ADC_TwoSamplingDelay = ADC_TwoSamplingDelay_5Cycles;
    ADC_CommonInit(&adcCommon);

    //setup adc1: in1,2,3,8,9,15
    ADC_InitTypeDef adc;
    ADC_DeInit(); //set adc to default state
    adc.ADC_DataAlign = ADC_DataAlign_Right; //mask 0b 00001111 11111111
    adc.ADC_Resolution = ADC_Resolution_12b;//12 bit = 4096
    adc.ADC_ContinuousConvMode = ENABLE; //continuous: constantly converting data - can always read register
    adc.ADC_ExternalTrigConv = DISABLE;//ADC_ExternalTrigConv_T1_CC1;//external trigger conversion (?)
    adc.ADC_ExternalTrigConvEdge = ADC_ExternalTrigConvEdge_None;
    adc.ADC_NbrOfConversion = 6;
    adc.ADC_ScanConvMode = ENABLE;//single/multichannel
    ADC_Init(ADC1,&adc);

    ADC_RegularChannelConfig(ADC1,ADC_Channel_1,1,ADC_SampleTime_56Cycles);
    ADC_RegularChannelConfig(ADC1,ADC_Channel_2,2,ADC_SampleTime_56Cycles);
    ADC_RegularChannelConfig(ADC1,ADC_Channel_3,3,ADC_SampleTime_56Cycles);
    ADC_RegularChannelConfig(ADC1,ADC_Channel_8,4,ADC_SampleTime_56Cycles);
    ADC_RegularChannelConfig(ADC1,ADC_Channel_9,5,ADC_SampleTime_56Cycles);
    ADC_RegularChannelConfig(ADC1,ADC_Channel_15,6,ADC_SampleTime_56Cycles);


    ADC_DMARequestAfterLastTransferCmd(ADC1, ENABLE); //single adc repeated

    ADC_DMACmd(ADC1, ENABLE);
    ADC_Cmd(ADC1,ENABLE);
    // Start ADC conversion
    ADC_SoftwareStartConv(ADC1);
    return;
}

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我的部分问题是在adc之前没有设置dma。现在，我可以从ADC1->DR中准确读取一个adc值，但它在那里冻结，adc值仍然为零[I]您的主要问题是HAL。裸寄存器简单明了。我希望看到更复杂的配置：）。HAL-工作月数-登记-小时数。