32的dma中断可以进  但是判断不了中断标志  然后就卡住了   
下面是dma的配置 和中断服务函数

1. /* DMA2 Stream0 channel2 configuration **************************************/
   
2.   DMA_InitStructure.DMA_Channel = DMA_Channel_2;  
   
3.   DMA_InitStructure.DMA_PeripheralBaseAddr = (uint32_t)ADC3_DR_ADDRESS;
   
4.   DMA_InitStructure.DMA_Memory0BaseAddr = (uint32_t)ADC3Value;
   
5.   DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralToMemory;
   
6.   DMA_InitStructure.DMA_BufferSize = 1000;
   
7.   DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;
   
8.   DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable;
   
9.   DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_Word;
   
10.   DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_Word;
    
11.   DMA_InitStructure.DMA_Mode =DMA_Mode_Normal;
    
12.   DMA_InitStructure.DMA_Priority = DMA_Priority_High;
    
13.   DMA_InitStructure.DMA_FIFOMode = DMA_FIFOMode_Disable;         
    
14.   DMA_InitStructure.DMA_FIFOThreshold = DMA_FIFOThreshold_HalfFull;
    
15.   DMA_InitStructure.DMA_MemoryBurst = DMA_MemoryBurst_Single;
    
16.   DMA_InitStructure.DMA_PeripheralBurst = DMA_PeripheralBurst_Single;
    
17.   DMA_Init(DMA2_Stream0, &DMA_InitStructure);
    
18.        
    
19.         DMA_ITConfig(DMA2_Stream0, DMA_IT_TC ,ENABLE);
    
20. 
    
21.         DMA_Cmd(DMA2_Stream0, ENABLE);
    
22.        
    
23. 
    
24.    
    
25.     NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);                                                                                                         
    
26.     NVIC_InitStructure.NVIC_IRQChannel = DMA2_Stream0_IRQn;          
    
27.     NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 2;
    
28.     NVIC_InitStructure.NVIC_IRQChannelSubPriority = 2;       
    
29.     NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
    
30.     NVIC_Init(&NVIC_InitStructure);

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1. void DMA2_Stream0_IRQHandler()
   
2. {
   
3.        
   
4.         if (DMA_GetITStatus(DMA2_Stream0,DMA_FLAG_TCIF0))
   
5.         {
   
6.                 if (dma_flag == 0)
   
7.                 {
   
8.                        
   
9.                         dma_flag = 1;
   
10.                         arm_copy_q31(ADC3Value,ADC3Voltage,1000);
    
11.                 }
    
12.                 DMA_ClearITPendingBit(DMA2_Stream0,DMA_FLAG_TCIF0);
    
13.         }
    
14.        
    
15. }
    

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求大神帮忙啊~

。。。找到问题了    是吧中断判断标志和读取标志弄混了