static void RCC_Configuration(void);
static void GPIO_Configuration(void);
static void ADC_Configuration(void);
static void DMA_Configuration(void);
void SetupADC(void)
{
RCC_Configuration();
GPIO_Configuration();
DMA_Configuration();
ADC_Configuration();
}
void RCC_Configuration(void)
{
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA1, ENABLE);//开启DMA1外设时钟
RCC_APB2PeriphClockCmd(RCC_APB2Periph_ADC1 | RCC_APB2Periph_GPIOA, ENABLE); //开启APB2外设时钟
}
void GPIO_Configuration(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_1 | GPIO_Pin_2 | GPIO_Pin_3 | GPIO_Pin_4 | GPIO_Pin_5 | GPIO_Pin_6 | GPIO_Pin_7;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN;
GPIO_Init(GPIOA, &GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_1;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN;
GPIO_Init(GPIOB, &GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_1 | GPIO_Pin_2 | GPIO_Pin_3 | GPIO_Pin_4 | GPIO_Pin_5;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN;
GPIO_Init(GPIOC, &GPIO_InitStructure);
}
void ADC_Configuration(void)
{
ADC_InitTypeDef ADC_InitStructure;
ADC_DeInit(ADC1);
ADC_InitStructure.ADC_Mode = ADC_Mode_Independent; //独立模式
ADC_InitStructure.ADC_ScanConvMode = ENABLE; //连续多通道模式
ADC_InitStructure.ADC_ContinuousConvMode = ENABLE; //ADC转换工作在连续模式
ADC_InitStructure.ADC_ExternalTrigConv = ADC_ExternalTrigConv_None; //转换不受外界决定
ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right; //右对齐
ADC_InitStructure.ADC_NbrOfChannel = 16; //用于转换的通道数
ADC_Init(ADC1, &ADC_InitStructure); //初始化ADC
ADC_RegularChannelConfig(ADC1, ADC_Channel_0, 1, ADC_SampleTime_239Cycles5);//选择通道1,次序1,采样239.5周期
ADC_RegularChannelConfig(ADC1, ADC_Channel_1, 2, ADC_SampleTime_239Cycles5);
ADC_RegularChannelConfig(ADC1, ADC_Channel_2, 3, ADC_SampleTime_239Cycles5);
ADC_RegularChannelConfig(ADC1, ADC_Channel_3, 4, ADC_SampleTime_239Cycles5);
ADC_RegularChannelConfig(ADC1, ADC_Channel_4, 5, ADC_SampleTime_239Cycles5);//选择通道1,次序1,采样239.5周期
ADC_RegularChannelConfig(ADC1, ADC_Channel_5, 6, ADC_SampleTime_239Cycles5);
ADC_RegularChannelConfig(ADC1, ADC_Channel_6, 7, ADC_SampleTime_239Cycles5);
ADC_RegularChannelConfig(ADC1, ADC_Channel_7, 8, ADC_SampleTime_239Cycles5);
ADC_RegularChannelConfig(ADC1, ADC_Channel_8, 9, ADC_SampleTime_239Cycles5);//选择通道1,次序1,采样239.5周期
ADC_RegularChannelConfig(ADC1, ADC_Channel_9, 10, ADC_SampleTime_239Cycles5);
ADC_RegularChannelConfig(ADC1, ADC_Channel_10, 11, ADC_SampleTime_239Cycles5);
ADC_RegularChannelConfig(ADC1, ADC_Channel_11, 12, ADC_SampleTime_239Cycles5);
ADC_RegularChannelConfig(ADC1, ADC_Channel_12, 13, ADC_SampleTime_239Cycles5);//选择通道1,次序1,采样239.5周期
ADC_RegularChannelConfig(ADC1, ADC_Channel_13, 14, ADC_SampleTime_239Cycles5);
ADC_RegularChannelConfig(ADC1, ADC_Channel_14, 15, ADC_SampleTime_239Cycles5);
ADC_RegularChannelConfig(ADC1, ADC_Channel_15, 16, ADC_SampleTime_239Cycles5);
ADC_DMACmd(ADC1, ENABLE);//使DMA与ADC1建立有效联系
ADC_Cmd (ADC1, ENABLE); //使能或者失能指定的ADC
//ADC_SoftwareStartConvCmd(ADC1,ENABLE); //使能或者失能指定的ADC的软件转换启动功能
ADC_ResetCalibration(ADC1);//重置ADC1校准寄存器
while (ADC_GetResetCalibrationStatus(ADC1));//等待ADC1校准重置完成
ADC_StartCalibration(ADC1);//开始ADC1校准
while (ADC_GetCalibrationStatus(ADC1));//等待ADC1校准完成
ADC_SoftwareStartConvCmd(ADC1, ENABLE);//使能ADC1软件开始转换
}
void DMA_Configuration(void)
{
DMA_InitTypeDef DMA_InitStructure;
DMA_DeInit(DMA1_Channel1);//开启DAM通道1
DMA_InitStructure.DMA_PeripheralBaseAddr = ADC1_DR_Address;//外设地址
DMA_InitStructure.DMA_MemoryBaseAddr = (u32)&ADC_ConvertedValue;//内存地址，自己开辟的数组
DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralSRC;//DMA单向传输方式
DMA_InitStructure.DMA_BufferSize =320;//使序列1结果放在ADC_DualConvertedValueTab[0],序列2结果放在ADC_DualConvertedValueTab[1]
DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;//设置DMA外设递增模式
DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable; //设置DMA内存递增模式
DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_HalfWord;//外设字长
DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_HalfWord;//内存地址
DMA_InitStructure.DMA_Mode = DMA_Mode_Circular; //设置传输模式连续不断的循环模式，循环模式开启，Buffer写满后，自动回到初始地址开始传输
DMA_InitStructure.DMA_Priority = DMA_Priority_High;//设置DMA优先级
DMA_InitStructure.DMA_M2M = DMA_M2M_Disable;//设置DMA的2个memory中的变量互相访问
DMA_Init(DMA1_Channel1, &DMA_InitStructure);//配置完成后，启动DMA通道
DMA_Cmd(DMA1_Channel1, ENABLE);
}