STM32 ADC多通道 要害代码

做了个上位机

#==========================================================

define ADC1_DR_Address ((u32)0x4001244C)

vu16 AD_Value[2];

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要害代码

void ADC1_Configuration(void)
{
ADC_InitTypeDef ADC_InitStructure;

ADC_InitStructure.ADC_Mode = ADC_Mode_Independent;
ADC_InitStructure.ADC_ScanConvMode = ENABLE;
ADC_InitStructure.ADC_ContinuousConvMode = ENABLE; //接连转化敞开
ADC_InitStructure.ADC_ExternalTrigConv = ADC_ExternalTrigConv_None;
ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right;
ADC_InitStructure.ADC_NbrOfChannel = 2; //设置转化序列长度为2
ADC_Init(ADC1, &ADC_InitStructure);

//ADC内置温度传感器使能（要运用片内温度传感器，切忌要敞开它）
ADC_TempSensorVrefintCmd(ENABLE);

//惯例转化序列1：通道10
ADC_RegularChannelConfig(ADC1, ADC_Channel_10, 1, ADC_SampleTime_13Cycles5);
//惯例转化序列2：通道16（内部温度传感器），采样时刻>2.2us,(239cycles)
ADC_RegularChannelConfig(ADC1, ADC_Channel_16, 2, ADC_SampleTime_239Cycles5);

// Enable ADC1
ADC_Cmd(ADC1, ENABLE);
// 敞开ADC的DMA支撑（要完成DMA功用，还需独立装备DMA通道等参数）
ADC_DMACmd(ADC1, ENABLE);

// 下面是ADC主动校准，开机后需履行一次，确保精度
// Enable ADC1 reset calibaration register
ADC_ResetCalibration(ADC1);
// Check the end of ADC1 reset calibration register
while(ADC_GetResetCalibrationStatus(ADC1));

// Start ADC1 calibaration
ADC_StartCalibration(ADC1);
// Check the end of ADC1 calibration
while(ADC_GetCalibrationStatus(ADC1));
// ADC主动校准完毕—————

}

/*******************************************************************************
* Function Name : DMA_Configuration
* Description : DMA设置：从ADC模块主动读转化成果至内存
* Input : None
* Output : None
* Return : None
*******************************************************************************/
void DMA_Configuration(void)
{
DMA_InitTypeDef DMA_InitStructure;

DMA_DeInit(DMA1_Channel1);
DMA_InitStructure.DMA_PeripheralBaseAddr =ADC1_DR_Address;
DMA_InitStructure.DMA_MemoryBaseAddr =(u32)&AD_Value;
DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralSRC;
//BufferSize=2，由于ADC转化序列有2个通道
//如此设置，使序列1成果放在AD_Value[0]，序列2成果放在AD_Value[1]
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;
//循环形式敞开，Buffer写满后，主动回到初始地址开端传输
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);
//装备完成后，发动DMA通道
DMA_Cmd(DMA1_Channel1, ENABLE);
}