LL_DMA_InitTypeDef struct

Specifies the peripheral base address for DMA transfer or as Source base address in case of memory to memory transfer direction. This parameter must be a value between Min_Data = 0 and Max_Data = 0xFFFFFFFF.

Specifies the memory base address for DMA transfer or as Destination base address in case of memory to memory transfer direction. This parameter must be a value between Min_Data = 0 and Max_Data = 0xFFFFFFFF.

Specifies if the data will be transferred from memory to peripheral, from memory to memory or from peripheral to memory. This parameter can be a value of DMA_LL_EC_DIRECTION This feature can be modified afterwards using unitary function LL_DMA_SetDataTransferDirection().

Specifies the normal or circular operation mode. This parameter can be a value of DMA_LL_EC_MODE.

Specifies whether the Peripheral address or Source address in case of memory to memory transfer direction is incremented or not. This parameter can be a value of DMA_LL_EC_PERIPH This feature can be modified afterwards using unitary function LL_DMA_SetPeriphIncMode().

Specifies whether the Memory address or Destination address in case of memory to memory transfer direction is incremented or not. This parameter can be a value of DMA_LL_EC_MEMORY This feature can be modified afterwards using unitary function LL_DMA_SetMemoryIncMode().

Specifies the Peripheral data size alignment or Source data size alignment (byte, half word, word) in case of memory to memory transfer direction. This parameter can be a value of DMA_LL_EC_PDATAALIGN This feature can be modified afterwards using unitary function LL_DMA_SetPeriphSize().

Specifies the Memory data size alignment or Destination data size alignment (byte, half word, word) in case of memory to memory transfer direction. This parameter can be a value of DMA_LL_EC_MDATAALIGN This feature can be modified afterwards using unitary function LL_DMA_SetMemorySize().

Specifies the number of data to transfer, in data unit. The data unit is equal to the source buffer configuration set in PeripheralSize or MemorySize parameters depending in the transfer direction. This parameter must be a value between Min_Data = 0 and Max_Data = 0x0000FFFF This feature can be modified afterwards using unitary function LL_DMA_SetDataLength().

Specifies the peripheral channel. This parameter can be a value of DMA_LL_EC_CHANNEL This feature can be modified afterwards using unitary function LL_DMA_SetChannelSelection().

Specifies the channel priority level. This parameter can be a value of DMA_LL_EC_PRIORITY This feature can be modified afterwards using unitary function LL_DMA_SetStreamPriorityLevel().

Specifies if the FIFO mode or Direct mode will be used for the specified stream. This parameter can be a value of DMA_LL_FIFOMODE.

Specifies the FIFO threshold level. This parameter can be a value of DMA_LL_EC_FIFOTHRESHOLD This feature can be modified afterwards using unitary function LL_DMA_SetFIFOThreshold().

Specifies the Burst transfer configuration for the memory transfers. It specifies the amount of data to be transferred in a single non interruptible transaction. This parameter can be a value of DMA_LL_EC_MBURST.

Specifies the Burst transfer configuration for the peripheral transfers. It specifies the amount of data to be transferred in a single non interruptible transaction. This parameter can be a value of DMA_LL_EC_PBURST.