1. void ADC_DMA_Config(void)
   
2. {
   
3.         NVIC_InitTypeDef NVIC_InitStructure;
   
4.         //DMA for ADCÅäÖýṹ
   
5.         DMA_InitTypeDef DMA_InitStructure;   
   
6. 
   
7.         RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_DMA2, ENABLE);
   
8.         RCC_APB2PeriphClockCmd(RCC_APB2Periph_ADC1 | RCC_APB2Periph_ADC2, ENABLE);
   
9. 
   
10.         DMA_DeInit(DMA2_Stream0);
    
11.         /* DMA2 Stream0 channe0 configuration **************************************/
    
12.         DMA_InitStructure.DMA_Channel = ADC_DMAn;  
    
13.         DMA_InitStructure.DMA_PeripheralBaseAddr = (uint32_t)0x40012308;
    
14.         DMA_InitStructure.DMA_Memory0BaseAddr = (uint32_t)&DMABuf[DMABufFlag][0];
    
15.         DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralToMemory;
    
16.         DMA_InitStructure.DMA_BufferSize = ADC_REG_SEQ_SIZE;
    
17.         DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;
    
18.         DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable;
    
19.         DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_Word;
    
20.         DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_Word;
    
21.         DMA_InitStructure.DMA_Mode = DMA_Mode_Circular;
    
22.         //        DMA_InitStructure.DMA_Mode = DMA_Mode_Normal;
    
23.         DMA_InitStructure.DMA_Priority = DMA_Priority_High;
    
24.         DMA_InitStructure.DMA_FIFOMode = DMA_FIFOMode_Disable;         
    
25.         DMA_InitStructure.DMA_FIFOThreshold = DMA_FIFOThreshold_HalfFull;
    
26.         DMA_InitStructure.DMA_MemoryBurst = DMA_MemoryBurst_Single;
    
27.         DMA_InitStructure.DMA_PeripheralBurst = DMA_PeripheralBurst_Single;
    
28.         DMA_Init(DMA2_Stream0, &DMA_InitStructure);
    
29.   
    
30.         /* Enable the DMA gloabal Interrupt */
    
31.         DMA_ClearITPendingBit(DMA2_Stream0,DMA_IT_TC);
    
32.     DMA_ITConfig(DMA2_Stream0, DMA_IT_TC, ENABLE);
    
33.     //Enable DMA ADC_DMAn
    
34.     DMA_Cmd(DMA2_Stream0, ENABLE);
    
35.     //DMA for ADC ÖжÏʹÄÜ
    
36.        
    
37.         NVIC_InitStructure.NVIC_IRQChannel = DMA2_Stream0_IRQn;
    
38.         NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
    
39.         NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;  
    
40.         NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
    
41.         NVIC_Init(&NVIC_InitStructure);
    
42. }
    

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1. void ADC_Config(void)
   
2. {
   
3.         ADC_InitTypeDef   ADC_InitStructure;
   
4.         ADC_CommonInitTypeDef ADC_CommonInitStructure;
   
5. 
   
6.         /* Enable ADC clock */
   
7.         RCC_APB2PeriphClockCmd(RCC_APB2Periph_ADC1 | RCC_APB2Periph_ADC2, ENABLE);
   
8. 
   
9.         /* ADC2 regular channel 12 configuration ************************************/
   
10.         ADC_InitStructure.ADC_Resolution = ADC_Resolution_12b;
    
11.         ADC_InitStructure.ADC_ScanConvMode = ENABLE;
    
12.         ADC_InitStructure.ADC_ContinuousConvMode = DISABLE;
    
13.         ADC_InitStructure.ADC_ExternalTrigConvEdge = ADC_ExternalTrigConvEdge_None;
    
14.         ADC_InitStructure.ADC_ExternalTrigConv = ADC_ExternalTrigConv_T2_CC4;
    
15.         ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right;
    
16.         ADC_InitStructure.ADC_NbrOfConversion = ADC_REG_SEQ_SIZE;
    
17.         ADC_Init(ADC2, &ADC_InitStructure);
    
18.         /* ADC1 regular channel 12 configuration ************************************/
    
19.         ADC_InitStructure.ADC_Resolution = ADC_Resolution_12b;
    
20.         ADC_InitStructure.ADC_ScanConvMode = ENABLE;
    
21.         ADC_InitStructure.ADC_ContinuousConvMode = DISABLE;        //ENABLE
    
22.         ADC_InitStructure.ADC_ExternalTrigConvEdge = ADC_ExternalTrigConvEdge_Rising;
    
23.         ADC_InitStructure.ADC_ExternalTrigConv = ADC_ExternalTrigConv_T2_CC4;
    
24.         ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right;
    
25.         ADC_InitStructure.ADC_NbrOfConversion = ADC_REG_SEQ_SIZE;
    
26.         ADC_Init(ADC1, &ADC_InitStructure);
    
27. 
    
28.         /* ADC Common configuration *************************************************/
    
29.         ADC_CommonInitStructure.ADC_Mode = ADC_DualMode_RegSimult;        //Ë«ÖØģʽ¡¢¹æÔò×é
    
30.         ADC_CommonInitStructure.ADC_TwoSamplingDelay = ADC_TwoSamplingDelay_5Cycles;
    
31.         ADC_CommonInitStructure.ADC_DMAAccessMode = ADC_DMAAccessMode_2;  
    
32.         ADC_CommonInitStructure.ADC_Prescaler = ADC_Prescaler_Div4;
    
33.         ADC_CommonInit(&ADC_CommonInitStructure);
    
34. 
    
35.     //¸üÐÂɨÃèÐòÁÐ×é
    
36.     ReNewADC_RegularSeqConfig();
    
37.     //ʹÄÜζȴ«¸ÐÆ÷ºÍÄÚ²¿²Î¿¼µçѹͨµÀ
    
38.     ADC_TempSensorVrefintCmd(ENABLE);
    
39. 
    
40.     //Enable ADC1 DMA
    
41.     ADC_DMACmd(ADC1, ENABLE);
    
42.        
    
43.         //Enable ADC1 ADC2
    
44.     ADC_Cmd(ADC1, ENABLE);
    
45.     ADC_Cmd(ADC2, ENABLE);                                                         //Ë«ADC
    
46. }
    

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1. void TIM2_Config(void)
   
2. {
   
3.     TIM_TimeBaseInitTypeDef          TIM_TimeBaseStructure;
   
4.         TIM_OCInitTypeDef                          TIM_OCInitStructure;
   
5. 
   
6.         RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2, ENABLE);  
   
7.         TIM_DeInit(TIM2);//¸´Î»TIM2¶¨Ê±Æ÷
   
8. 
   
9.         //X us¶¨Ê±ÖжÏ
   
10.         TIM_TimeBaseStructure.TIM_Period = SamplePeriod; //×î´ó¼ÆÊýÖµ0xffff         
    
11.         TIM_TimeBaseStructure.TIM_Prescaler = 71;//·ÖƵ  1us     
    
12.         TIM_TimeBaseStructure.TIM_ClockDivision = 0x00;//·ÖƵÒò×Ó  //CK_CNT = FCLK /(TIM_Prescaler+1)
    
13.         TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
    
14.         TIM_TimeBaseInit(TIM2, &TIM_TimeBaseStructure);
    
15. 
    
16.         //PWM1 Mode configuration: Channel4
    
17.     TIM_OCInitStructure.TIM_OCMode          = TIM_OCMode_PWM1;
    
18.     TIM_OCInitStructure.TIM_OutputState     = TIM_OutputState_Enable;               
    
19.     TIM_OCInitStructure.TIM_Pulse           = (SamplePeriod>>1);//(Õ¼¿Õ)
    
20.     TIM_OCInitStructure.TIM_OCPolarity      = TIM_OCPolarity_High;
    
21.         TIM_OC4Init(TIM2, &TIM_OCInitStructure);
    
22.         TIM_OC4PreloadConfig(TIM2, TIM_OCPreload_Disable);//¹Ø±ÕԤװÔØ
    
23.         TIM_ARRPreloadConfig(TIM2, ENABLE);        //ʹÄÜ×Ô¶¯ÖØ×°
    
24. }
    

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1. void ADC_DMA_TIM2Config(void)
   
2. {
   
3.     GPIO_InitTypeDef GPIO_InitStructure;
   
4.    
   
5.         /* Enable GPIOA clock */
   
6.         RCC_APB2PeriphClockCmd(RCC_AHB1Periph_GPIOA, ENABLE);
   
7.         RCC_APB2PeriphClockCmd(RCC_AHB1Periph_GPIOC, ENABLE);
   
8. 
   
9.     /* Configure PA.0-7 pin (ADC Channel0 ~ Channel7) as analog input */
   
10.     GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_1 | GPIO_Pin_2 | GPIO_Pin_3        |
    
11.                                                                   GPIO_Pin_4 | GPIO_Pin_5 | GPIO_Pin_6 | GPIO_Pin_7;
    
12.                                                                   
    
13.     GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN;
    
14.     GPIO_Init(GPIOA, &GPIO_InitStructure);   
    
15. 
    
16.     /* Configure PC.0-3 pin (ADC Channel10 ~ Channel2) as analog input */
    
17.     GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_1 | GPIO_Pin_2 | GPIO_Pin_3;
    
18.     GPIO_Init(GPIOC, &GPIO_InitStructure);   
    
19. 
    
20.         ADC_DMA_Config();
    
21.     ADC_Config();
    
22.         TIM2_Config();
    
23. 
    
24.         /* Enable DMA request after last transfer (multi-ADC mode) ******************/
    
25.         ADC_MultiModeDMARequestAfterLastTransferCmd(ENABLE);
    
26.         /* TIM2 main Output Enable */
    
27.         TIM_CtrlPWMOutputs(TIM2,ENABLE);       
    
28.         //ÍⲿʱÖÓ´¥·¢ADC
    
29.         TIM_Cmd(TIM2, ENABLE);
    
30. }
    

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1. void DMA2_Stream0_IRQHandler(void)
   
2. {
   
3.         INT8U err;
   
4.         u8 temp;
   
5. 
   
6.     if(DMA_GetITStatus(DMA2_Stream0,DMA_IT_TCIF0))
   
7.     {
   
8.                 if(SampleCounter < HITS) //Öܲ¨²ÉÑùÍê³É
   
9.         {
   
10.                 temp = DMABufFlag; //±£´æÍê³ÉͨµÀµÄ±êÖ¾
    
11.                                                                                         
    
12.                 DMABufFlag ^= 0x01;   //ÂÖתͨµÀ
    
13.                 DMA2_Stream0->M0AR = (u32)&DMABuf[DMABufFlag][0];//еĽÓÊÕ»º´æÇø
    
14.                         //...
    
15.                         SampleCounter++;
    
16.                         if(SampleCounter >= HITS) //Öܲ¨²ÉÑùÍê³É
    
17.                 {
    
18.                                 SampleCounter = 0;
    
19.                                 //...
    
20.                         }
    
21. 
    
22.                 } //if(SampleCounter < HITS)
    
23.                 else
    
24.                         SampleCounter = 0;
    
25.             DMA_ClearITPendingBit(DMA2_Stream0,DMA_IT_TCIF0);
    
26.     }//end if(DMA_GetITStatus(DMA1_IT_TC1))
    
27. }
    

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程序预想的流程是：采用ADC1、ADC2规则组对多个通道进行数据采样，用DMA保存采样数据，规则组中所有通道采样完成后备份数据后续处理。
调用ADC_DMA_TIM2Config函数初始化后，程序运行仿真，只能进入一次中断服务程序DMA2_Stream0_IRQHandler，SR寄存器的OVR位被置位，查不出是什么原因。求指点。。。。。。。。。

没人啊？
最新进展，溢出是由DMA2_Stream0->M0AR = (u32)&DMABuf[DMABufFlag][0];引起的，好像不能这样操作，DMA改为双缓存模式后，不会溢出，能连续进入DMA2中断服务程序了，DMA初始化函数增加如下代码：

1.         DMA_DoubleBufferModeConfig(DMA2_Stream0, (uint32_t)DMABuf32[1],DMA_Memory_0);
   
2.         DMA_DoubleBufferModeCmd(DMA2_Stream0, ENABLE);
   

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但是缓冲区接收不到采样数据。缓存区指示标志CT也不会变化。

没事了，可以正常用了，是我自己不熟悉407的库，很多地方应用很103的搞混了

最近也在做，楼主做的很好，已经做出来了吗？求发一份程序学习学习。

2285633228@qq.com，多谢！