采用ADC+DMA三通道AD转换为什么AD值不对，改变引脚位置对应...

ADC+DMA采集三通道AD值不对，改变引脚对应电平的AD值又变了。。。。

第一次代码不全
#include "stm32f10x.h"
#define ADC1_DR_Address    ((u32)0x4001244C)

void TIM1_UP_IRQHandler(void)
{
round1++;
TIM_ClearITPendingBit(TIM1, TIM_IT_Update);
}

void TIM2_IRQHandler(void)
{

  TIM_ClearITPendingBit(TIM2, TIM_IT_Update);
  ADC_SoftwareStartConvCmd(ADC1,ENABLE);

//   while(!(ADC_GetFlagStatus(ADC1, ADC_FLAG_EOC)));
                  
   while(!(DMA_GetFlagStatus(DMA1_FLAG_TC1)));

    adc_current[i]=adc_value[0];
    adc_voltagea[i]=adc_value[1];
    adc_voltageb[i]=adc_value[2];
//    while(!times);
//    while(!(times==3));

//  times=0;
   
     DMA_ClearFlag(DMA1_FLAG_TC1);
//   ADC_ClearFlag(ADC1, ADC_FLAG_EOC);
  i++;
           LED_on;
   if(i==7)
   {
   i=0;
   Max_cu=adc_current[0];
      Min_cu=adc_current[0];
      sum_cu=adc_current[0];
   Max_voa=adc_voltagea[0];
      Min_voa=adc_voltagea[0];
      sum_voa=adc_voltagea[0];
   Max_vob=adc_voltageb[0];
      Min_vob=adc_voltageb[0];
      sum_vob=adc_voltageb[0];
      for(i=1;i<7;i++)
       {
         sum_cu=sum_cu+adc_current[i];
         if(adc_current[i]>Max_cu) Max_cu=adc_current[i];
         if(adc_current[i]       sum_voa=sum_voa+adc_voltagea[i];
         if(adc_voltagea[i]>Max_voa) Max_voa=adc_voltagea[i];
         if(adc_voltagea[i]       sum_vob=sum_vob+adc_voltageb[i];
         if(adc_voltageb[i]>Max_vob) Max_vob=adc_voltageb[i];
         if(adc_voltageb[i]        }
   adc_cu=(sum_cu-Max_cu-Min_cu)/5;
   adc_voa=(sum_voa-Max_voa-Min_voa)/5;
   adc_vob=(sum_vob-Max_vob-Min_vob)/5;
   i=0;

}

RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO|RCC_APB2Periph_GPIOA|RCC_APB2Periph_GPIOB|RCC_APB2Periph_GPIOD|RCC_APB2Periph_GPIOC , ENABLE);// 使能APB2外设GPIOB时钟   
    RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOE|RCC_APB2Periph_GPIOF , ENABLE);// 使能APB2外设GPIOE时钟
  RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2|RCC_APB1Periph_TIM3|RCC_APB1Periph_TIM4, ENABLE);  
RCC_APB2PeriphClockCmd(RCC_APB2Periph_ADC1 |RCC_APB2Periph_TIM1, ENABLE);
    RCC_APB1PeriphClockCmd(RCC_APB1Periph_CAN1, ENABLE);
    RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA1, ENABLE);//使能DMA时钟


void ADC_RegularChannelConfiguration(void)
{
ADC_InitTypeDef ADC_InitStructure;
ADC_InitStructure.ADC_Mode=ADC_Mode_Independent;
ADC_InitStructure.ADC_ScanConvMode=ENABLE;
ADC_InitStructure.ADC_ContinuousConvMode=ENABLE;
ADC_InitStructure.ADC_ExternalTrigConv=ADC_ExternalTrigConv_None;
ADC_InitStructure.ADC_DataAlign=ADC_DataAlign_Right;
ADC_InitStructure.ADC_NbrOfChannel=3;
ADC_Init(ADC1,&ADC_InitStructure);

ADC_RegularChannelConfig(ADC1,ADC_Channel_10,1,ADC_SampleTime_1Cycles5);
ADC_RegularChannelConfig(ADC1,ADC_Channel_11,2,ADC_SampleTime_1Cycles5);
ADC_RegularChannelConfig(ADC1,ADC_Channel_12,3,ADC_SampleTime_1Cycles5);

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

ADC_ResetCalibration(ADC1);
while(ADC_GetResetCalibrationStatus(ADC1));
ADC_StartCalibration(ADC1);
while(ADC_GetCalibrationStatus(ADC1));  
ADC_ClearFlag(ADC1, ADC_FLAG_EOC);
ADC_SoftwareStartConvCmd(ADC1,DISABLE);

}
void DMA_Configuration(void)
{
DMA_InitTypeDef DMA_InitStructure;
   
    DMA_DeInit(DMA1_Channel1);
    DMA_InitStructure.DMA_PeripheralBaseAddr = ADC1_DR_Address;//adc1的数据寄存器设备地址，数据手册上有
    DMA_InitStructure.DMA_MemoryBaseAddr = (u32)&adc_value;//一个有3个元素数组的首地址
    DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralSRC;
    //BufferSize=2，因为ADC转换序列有2个通道
    //如此设置，使序列1结果放在adc_value[0]，序列2结果放在adc_value[1]
    DMA_InitStructure.DMA_BufferSize = 3;
    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;
    //循环模式开启，Buffer写满后，自动回到初始地址开始传输
    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);

DMA_ClearFlag(DMA1_FLAG_TC1);
    //配置完成后，启动DMA通道
  DMA_ClearITPendingBit(DMA1_IT_TC1);
  DMA_ITConfig(DMA1_Channel1, DMA_IT_TC, ENABLE);
    DMA_Cmd(DMA1_Channel1, ENABLE);
}