//======================
void DCMI_init(char mode)
{
   RCC_AHB2PeriphClockCmd(RCC_AHB2Periph_DCMI, ENABLE);
   DCMI_InitTypeDef DCMI_InitStructure;
   DCMI_DeInit();
   {DCMI_InitStructure.DCMI_CaptureMode = DCMI_CaptureMode_SnapShot;}
   DCMI_InitStructure.DCMI_ExtendedDataMode = DCMI_ExtendedDataMode_8b;
   DCMI_InitStructure.DCMI_CaptureRate = DCMI_CaptureRate_All_Frame;
   DCMI_InitStructure.DCMI_PCKPolarity = DCMI_PCKPolarity_Rising;
   DCMI_InitStructure.DCMI_HSPolarity = DCMI_HSPolarity_Low;
   DCMI_InitStructure.DCMI_VSPolarity = DCMI_VSPolarity_Low;
   DCMI_InitStructure.DCMI_SynchroMode = DCMI_SynchroMode_Hardware;
   DCMI_Init(&DCMI_InitStructure);

   DCMI_Cmd(ENABLE);
}

void DMA_init(unsigned int addressbuffer, unsigned int BufferSize)
{
   RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_DMA2, ENABLE);
   DMA_InitTypeDef DMA_InitStructure;
   DMA_DeInit(DMA2_Stream1);
   
   DMA_InitStructure.DMA_Channel = DMA_Channel_1;
   DMA_InitStructure.DMA_PeripheralBaseAddr = (uint32_t) (&DCMI->DR);
   DMA_InitStructure.DMA_Memory0BaseAddr = addressbuffer;
   DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralToMemory;
   DMA_InitStructure.DMA_BufferSize = BufferSize/4;
   DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;
   DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable;
   DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_Word;
   DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_Word;
   DMA_InitStructure.DMA_Mode = DMA_Mode_Normal;
   DMA_InitStructure.DMA_Priority = DMA_Priority_VeryHigh;
   DMA_InitStructure.DMA_FIFOMode = DMA_FIFOMode_Disable;
   DMA_InitStructure.DMA_FIFOThreshold = DMA_FIFOThreshold_Full;
   DMA_InitStructure.DMA_MemoryBurst = DMA_MemoryBurst_Single;
   DMA_InitStructure.DMA_PeripheralBurst = DMA_PeripheralBurst_Single;
   DMA_Init(DMA2_Stream1, &DMA_InitStructure);

   DMA_ITConfig (DMA2_Stream1, DMA_IT_TC, ENABLE);
   DMA_ITConfig (DMA2_Stream1, DMA_IT_HT, ENABLE);
   NVIC_EnableIRQ (DMA2_Stream1_IRQn);
}