DMA_InitTypeDef Struct Reference

DMA Configuration Structure definition. More...

#include <stm32f4xx_hal_dma.h>

Collaboration diagram for DMA_InitTypeDef:

Data Fields
uint32_t	Channel
uint32_t	Direction
uint32_t	PeriphInc
uint32_t	MemInc
uint32_t	PeriphDataAlignment
uint32_t	MemDataAlignment
uint32_t	Mode
uint32_t	Priority
uint32_t	FIFOMode
uint32_t	FIFOThreshold
uint32_t	MemBurst
uint32_t	PeriphBurst

Detailed Description

DMA Configuration Structure definition.

Definition at line 48 of file stm32f4xx_hal_dma.h.

Field Documentation

Channel

uint32_t DMA_InitTypeDef::Channel

Specifies the channel used for the specified stream. This parameter can be a value of DMA Channel selection

Definition at line 50 of file stm32f4xx_hal_dma.h.

Referenced by HAL_DMA_Init().

Direction

uint32_t 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 DMA Data transfer direction

Definition at line 53 of file stm32f4xx_hal_dma.h.

Referenced by DMA_MultiBufferSetConfig(), DMA_SetConfig(), HAL_DMA_Init(), HAL_DMAEx_MultiBufferStart(), HAL_DMAEx_MultiBufferStart_IT(), HAL_MMC_ReadBlocks_DMA(), HAL_MMC_WriteBlocks_DMA(), HAL_SD_ReadBlocks_DMA(), and HAL_SD_WriteBlocks_DMA().

PeriphInc

uint32_t DMA_InitTypeDef::PeriphInc

Specifies whether the Peripheral address register should be incremented or not. This parameter can be a value of DMA Peripheral incremented mode

Definition at line 57 of file stm32f4xx_hal_dma.h.

Referenced by HAL_DMA_Init().

MemInc

uint32_t DMA_InitTypeDef::MemInc

Specifies whether the memory address register should be incremented or not. This parameter can be a value of DMA Memory incremented mode

Definition at line 60 of file stm32f4xx_hal_dma.h.

Referenced by HAL_DMA_Init().

PeriphDataAlignment

uint32_t DMA_InitTypeDef::PeriphDataAlignment

Specifies the Peripheral data width. This parameter can be a value of DMA Peripheral data size

Definition at line 63 of file stm32f4xx_hal_dma.h.

Referenced by HAL_DMA_Init().

MemDataAlignment

uint32_t DMA_InitTypeDef::MemDataAlignment

Specifies the Memory data width. This parameter can be a value of DMA Memory data size

Definition at line 66 of file stm32f4xx_hal_dma.h.

Referenced by DMA_CheckFifoParam(), and HAL_DMA_Init().

Mode

uint32_t DMA_InitTypeDef::Mode

Specifies the operation mode of the DMAy Streamx. This parameter can be a value of DMA mode

Note

The circular buffer mode cannot be used if the memory-to-memory data transfer is configured on the selected Stream

Definition at line 69 of file stm32f4xx_hal_dma.h.

Referenced by HAL_DMA_Init(), HAL_UART_IRQHandler(), I2S_DMARxCplt(), I2S_DMATxCplt(), SAI_DMARxCplt(), SAI_DMATxCplt(), TIM_DMACaptureCplt(), TIM_DMADelayPulseCplt(), TIM_DMADelayPulseNCplt(), TIM_DMAPeriodElapsedCplt(), and TIM_DMATriggerCplt().

Priority

uint32_t DMA_InitTypeDef::Priority

Specifies the software priority for the DMAy Streamx. This parameter can be a value of DMA Priority level

Definition at line 74 of file stm32f4xx_hal_dma.h.

Referenced by HAL_DMA_Init().

FIFOMode

uint32_t DMA_InitTypeDef::FIFOMode

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

Note

The Direct mode (FIFO mode disabled) cannot be used if the memory-to-memory data transfer is configured on the selected stream

Definition at line 77 of file stm32f4xx_hal_dma.h.

Referenced by HAL_DMA_Init().

FIFOThreshold

uint32_t DMA_InitTypeDef::FIFOThreshold

Specifies the FIFO threshold level. This parameter can be a value of DMA FIFO threshold level

Definition at line 82 of file stm32f4xx_hal_dma.h.

Referenced by DMA_CheckFifoParam(), and HAL_DMA_Init().

MemBurst

uint32_t DMA_InitTypeDef::MemBurst

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 Memory burst

Note

The burst mode is possible only if the address Increment mode is enabled.

Definition at line 85 of file stm32f4xx_hal_dma.h.

Referenced by DMA_CheckFifoParam(), and HAL_DMA_Init().

PeriphBurst

uint32_t DMA_InitTypeDef::PeriphBurst

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 Peripheral burst

Note

The burst mode is possible only if the address Increment mode is enabled.

Definition at line 91 of file stm32f4xx_hal_dma.h.

Referenced by HAL_DMA_Init().

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

• stm32f4xx_hal_dma.h