用dma的方式获取adc的值，adc1,11个通道，取到的值相互干扰怎么解决，代码下面这样
int length=11;
u16 ADC_ConvertedValue[11]={0,0,0,0,0,0,0,0,0,0,0};
//ADC对应GPIO初始化配置以及ADC初始化配置
void adc_Init(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
ADC_InitTypeDef ADC_InitStructure;
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA |RCC_APB2Periph_GPIOB |RCC_APB2Periph_GPIOC |RCC_APB2Periph_ADC1 , ENABLE ); //使能GPIO时钟和ADC
RCC_ADCCLKConfig(RCC_PCLK2_Div6); //设置ADC时钟分频为6分频
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模式为模拟输入
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_InitStructure.GPIO_Mode = GPIO_Mode_AIN;
GPIO_Init(GPIOC, &GPIO_InitStructure);
ADC_InitStructure.ADC_Mode = ADC_Mode_Independent; //配置ADC为独立模式
ADC_InitStructure.ADC_ScanConvMode = ENABLE; //多通道模式下开启扫描模式
ADC_InitStructure.ADC_ContinuousConvMode = ENABLE; //设置开启连续转换模式
ADC_InitStructure.ADC_ExternalTrigConv = ADC_ExternalTrigConv_None; //设置转换不是由外部触发启动，软件触发启动
ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right; //设置ADC数据右对齐
ADC_InitStructure.ADC_NbrOfChannel = length; //规则转换的ADC通道的数目
ADC_Init(ADC1, &ADC_InitStructure); //根据ADC_InitStructure中指定的参数初始化ADC1寄存器
ADC_Cmd(ADC1, ENABLE); //使能ADC1
ADC_ResetCalibration(ADC1); //重置ADC1校准寄存器。
while(ADC_GetResetCalibrationStatus(ADC1)); //等待复位校准结束
ADC_StartCalibration(ADC1); //开启AD校准
while(ADC_GetCalibrationStatus(ADC1)); //等待校准结束
}
//ADC DMA模式配置
void DMA_Tx_Init( void )
{
DMA_InitTypeDef DMA_InitStructure;
RCC_AHBPeriphClockCmd( RCC_AHBPeriph_DMA1, ENABLE ); //使能开启DMA时钟
DMA_DeInit(DMA1_Channel1); //复位DMA控制器
DMA_InitStructure.DMA_PeripheralBaseAddr = (u32)&ADC1->RDATAR; //配置外设地址为ADC数据寄存器地址
DMA_InitStructure.DMA_MemoryBaseAddr = (u32)ADC_ConvertedValue; //配置存储器地址为读取ADC值地址
DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralSRC; //配置数据源为外设，即DMA传输方式为外设到存储器
DMA_InitStructure.DMA_BufferSize = length; //设置DMA数据缓冲区大小，此处设置为length
DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;//设置DMA外设递增模式关闭
DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable; //设置DMA存储器递增模式开启
DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_HalfWord; //设置外设数据大小为半字，即两个字节
DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_HalfWord; //设置存储器数据大小为半字，即两个字节
DMA_InitStructure.DMA_Mode = DMA_Mode_Circular; //设置DMA模式为循环传输模式
DMA_InitStructure.DMA_Priority = DMA_Priority_High; //设置DMA传输通道优先级为高，当使用一 DMA通道时，优先级设置不影响
DMA_InitStructure.DMA_M2M = DMA_M2M_Disable; //因为此DMA传输方式为外设到存储器，因此禁用存储器到存储器传输方式
DMA_Init( DMA1_Channel1, &DMA_InitStructure ); //初始化DMA
DMA_Cmd(DMA1_Channel1 , ENABLE); //使能DMA
}
void ADC_DMA_CONF(void)
{
adc_Init();
DMA_Tx_Init();
/// PA0->ADC0
/// PA1->ADC1
/// PA2->ADC2
/// PA3->ADC3
/// PA4->ADC4
/// PA5->ADC5
/// PA6->ADC6
/// PA7->ADC7
/// PB0->ADC8
/// PB1->ADC9
/// PC0->ADC10
/// PC1->ADC11
/// PC2->ADC12
/// PC3->ADC13
// 配置 ADC 通道转换顺序为1，第一个转换，采样时间为55.5个时钟周期
ADC_RegularChannelConfig(ADC1, ADC_Channel_0, 1, ADC_SampleTime_55Cycles5);
ADC_RegularChannelConfig(ADC1, ADC_Channel_1, 2, ADC_SampleTime_55Cycles5);
ADC_RegularChannelConfig(ADC1, ADC_Channel_2, 3, ADC_SampleTime_55Cycles5);
ADC_RegularChannelConfig(ADC1, ADC_Channel_3, 4, ADC_SampleTime_55Cycles5);
ADC_RegularChannelConfig(ADC1, ADC_Channel_4, 5, ADC_SampleTime_55Cycles5);
ADC_RegularChannelConfig(ADC1, ADC_Channel_5, 6, ADC_SampleTime_55Cycles5);
ADC_RegularChannelConfig(ADC1, ADC_Channel_6, 7, ADC_SampleTime_55Cycles5);
ADC_RegularChannelConfig(ADC1, ADC_Channel_7, 8, ADC_SampleTime_55Cycles5);
ADC_RegularChannelConfig(ADC1, ADC_Channel_8, 9, ADC_SampleTime_55Cycles5);
ADC_RegularChannelConfig(ADC1, ADC_Channel_9, 10, ADC_SampleTime_55Cycles5);
ADC_RegularChannelConfig(ADC1, ADC_Channel_10, 11, ADC_SampleTime_55Cycles5);
// 使能ADC DMA 请求
ADC_DMACmd(ADC1, ENABLE);
// 由于没有采用外部触发，所以使用软件触发ADC转换
ADC_SoftwareStartConvCmd(ADC1, ENABLE);
}
