LL_DMA_InitTypeDef Struct Reference

#include <stm32l4xx_ll_dma.h>

Data Fields
uint32_t	PeriphOrM2MSrcAddress
uint32_t	MemoryOrM2MDstAddress
uint32_t	Direction
uint32_t	Mode
uint32_t	PeriphOrM2MSrcIncMode
uint32_t	MemoryOrM2MDstIncMode
uint32_t	PeriphOrM2MSrcDataSize
uint32_t	MemoryOrM2MDstDataSize
uint32_t	NbData
uint32_t	PeriphRequest
uint32_t	Priority

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Detailed Description

Definition at line 130 of file stm32l4xx_ll_dma.h.

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Field Documentation

uint32_t LL_DMA_InitTypeDef::Direction

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 Transfer Direction

This feature can be modified afterwards using unitary function LL_DMA_SetDataTransferDirection().

Definition at line 142 of file stm32l4xx_ll_dma.h.

Referenced by LL_DMA_Init(), and LL_DMA_StructInit().

uint32_t LL_DMA_InitTypeDef::MemoryOrM2MDstAddress

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.

Definition at line 137 of file stm32l4xx_ll_dma.h.

Referenced by LL_DMA_Init(), and LL_DMA_StructInit().

uint32_t LL_DMA_InitTypeDef::MemoryOrM2MDstDataSize

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 Memory data alignment

This feature can be modified afterwards using unitary function LL_DMA_SetMemorySize().

Definition at line 173 of file stm32l4xx_ll_dma.h.

Referenced by LL_DMA_Init(), and LL_DMA_StructInit().

uint32_t LL_DMA_InitTypeDef::MemoryOrM2MDstIncMode

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 Memory increment mode

This feature can be modified afterwards using unitary function LL_DMA_SetMemoryIncMode().

Definition at line 161 of file stm32l4xx_ll_dma.h.

Referenced by LL_DMA_Init(), and LL_DMA_StructInit().

uint32_t LL_DMA_InitTypeDef::Mode

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

Note:

: The circular buffer mode cannot be used if the memory to memory data transfer direction is configured on the selected Channel

This feature can be modified afterwards using unitary function LL_DMA_SetMode().

Definition at line 148 of file stm32l4xx_ll_dma.h.

Referenced by LL_DMA_Init(), and LL_DMA_StructInit().

uint32_t LL_DMA_InitTypeDef::NbData

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().

Definition at line 179 of file stm32l4xx_ll_dma.h.

Referenced by LL_DMA_Init(), and LL_DMA_StructInit().

uint32_t LL_DMA_InitTypeDef::PeriphOrM2MSrcAddress

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.

Definition at line 132 of file stm32l4xx_ll_dma.h.

Referenced by LL_DMA_Init(), and LL_DMA_StructInit().

uint32_t LL_DMA_InitTypeDef::PeriphOrM2MSrcDataSize

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 Peripheral data alignment

This feature can be modified afterwards using unitary function LL_DMA_SetPeriphSize().

Definition at line 167 of file stm32l4xx_ll_dma.h.

Referenced by LL_DMA_Init(), and LL_DMA_StructInit().

uint32_t LL_DMA_InitTypeDef::PeriphOrM2MSrcIncMode

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 Peripheral increment mode

This feature can be modified afterwards using unitary function LL_DMA_SetPeriphIncMode().

Definition at line 155 of file stm32l4xx_ll_dma.h.

Referenced by LL_DMA_Init(), and LL_DMA_StructInit().

uint32_t LL_DMA_InitTypeDef::PeriphRequest

Specifies the peripheral request. This parameter can be a value of Transfer peripheral request

This feature can be modified afterwards using unitary function LL_DMA_SetPeriphRequest().

Definition at line 193 of file stm32l4xx_ll_dma.h.

Referenced by LL_DMA_Init(), and LL_DMA_StructInit().

uint32_t LL_DMA_InitTypeDef::Priority

Specifies the channel priority level. This parameter can be a value of Transfer Priority level

This feature can be modified afterwards using unitary function LL_DMA_SetChannelPriorityLevel().

Definition at line 199 of file stm32l4xx_ll_dma.h.

Referenced by LL_DMA_Init(), and LL_DMA_StructInit().

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The documentation for this struct was generated from the following file:

• stm32l4xx_ll_dma.h