ST STM32F2 User Manual

UM1940
LL DMA Generic Driver
DocID028236 Rev 2
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LL_DMA_DeInit
Function name
uint32_t LL_DMA_DeInit (DMA_TypeDef * DMAx, uint32_t
Stream)
Function description
De-initialize the DMA registers to their default reset values.
Parameters
DMAx: DMAx Instance
Stream: This parameter can be one of the following values:
LL_DMA_STREAM_0
LL_DMA_STREAM_1
LL_DMA_STREAM_2
LL_DMA_STREAM_3
LL_DMA_STREAM_4
LL_DMA_STREAM_5
LL_DMA_STREAM_6
LL_DMA_STREAM_7
LL_DMA_STREAM_ALL
Return values
An: ErrorStatus enumeration value:
SUCCESS: DMA registers are de-initialized
ERROR: DMA registers are not de-initialized
LL_DMA_StructInit
Function name
void LL_DMA_StructInit (LL_DMA_InitTypeDef *
DMA_InitStruct)
Function description
Set each LL_DMA_InitTypeDef field to default value.
Parameters
DMA_InitStruct: Pointer to a LL_DMA_InitTypeDef
structure.
Return values
None:
55.3 DMA Firmware driver defines
55.3.1 DMA
CHANNEL
LL_DMA_CHANNEL_0
LL_DMA_CHANNEL_1
LL_DMA_CHANNEL_2
LL_DMA_CHANNEL_3
LL_DMA_CHANNEL_4
LL_DMA_CHANNEL_5
LL_DMA_CHANNEL_6
LL_DMA_CHANNEL_7
CURRENTTARGETMEM
LL_DMA_CURRENTTARGETMEM0
Set CurrentTarget Memory to Memory 0
LL_DMA_CURRENTTARGETMEM1
Set CurrentTarget Memory to Memory 1

ST STM32F2 Specifications

General

Brand	ST
Model	STM32F2
Category	Microcontrollers
Language	English