RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA1, ENABLE);

	DMA_InitTypeDef dma;

	dma.DMA_DIR = DMA_DIR_PeripheralSRC;

	dma.DMA_PeripheralBaseAddr = (uint32_t)&ADC_PORT->IDR;
	dma.DMA_PeripheralDataSize = DMA_PeripheralDataSize_Byte;
	dma.DMA_PeripheralInc = DMA_PeripheralInc_Disable;

	dma.DMA_MemoryBaseAddr = (uint32_t)adcBuff;
	dma.DMA_MemoryDataSize = DMA_PeripheralDataSize_Byte;
	dma.DMA_MemoryInc = DMA_MemoryInc_Enable;

	dma.DMA_BufferSize = ADC_BUF_SIZE;

	dma.DMA_M2M = DMA_M2M_Enable;
	dma.DMA_Mode = DMA_Mode_Circular;
	dma.DMA_Priority = DMA_Priority_VeryHigh;

	DMA_Init(ADC_DMA_CH, &dma);

	DMA_ITConfig(ADC_DMA_CH, DMA_IT_TC, ENABLE);
	NVIC_EnableIRQ(DMA1_Channel2_IRQn);

	DMA_Cmd(DMA, ENABLE);





  /* DMA controller clock enable */
  __HAL_RCC_DMA1_CLK_ENABLE();

  /* Configure DMA request hdma_memtomem_dma1_channel2 on DMA1_Channel2 */
  hdma_memtomem_dma1_channel2.Instance = DMA1_Channel2;
  hdma_memtomem_dma1_channel2.Init.Direction = DMA_MEMORY_TO_MEMORY;
  hdma_memtomem_dma1_channel2.Init.PeriphInc = DMA_PINC_ENABLE;
  hdma_memtomem_dma1_channel2.Init.MemInc = DMA_MINC_ENABLE;
  hdma_memtomem_dma1_channel2.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
  hdma_memtomem_dma1_channel2.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
  hdma_memtomem_dma1_channel2.Init.Mode = DMA_NORMAL;
  hdma_memtomem_dma1_channel2.Init.Priority = DMA_PRIORITY_LOW;