Initialization and de-initialization functions

Initialization and de-initialization functions. More...

Functions
HAL_StatusTypeDef	HAL_DMA_Init (DMA_HandleTypeDef *hdma)
	Initialize the DMA according to the specified parameters in the DMA_InitTypeDef and create the associated handle.
HAL_StatusTypeDef	HAL_DMA_DeInit (DMA_HandleTypeDef *hdma)
	DeInitializes the DMA peripheral.

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Detailed Description

Initialization and de-initialization functions.

 ===============================================================================
             ##### Initialization and de-initialization functions  #####
 ===============================================================================
    [..]
    This section provides functions allowing to initialize the DMA Stream source
    and destination addresses, incrementation and data sizes, transfer direction, 
    circular/normal mode selection, memory-to-memory mode selection and Stream priority value.
    [..]
    The HAL_DMA_Init() function follows the DMA configuration procedures as described in
    reference manual.

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Function Documentation

HAL_StatusTypeDef HAL_DMA_DeInit

(

DMA_HandleTypeDef *

hdma

)

DeInitializes the DMA peripheral.

Parameters:

hdma	pointer to a DMA_HandleTypeDef structure that contains the configuration information for the specified DMA Stream.

Return values:

HAL

status

Definition at line 326 of file stm32f4xx_hal_dma.c.

References __HAL_DMA_DISABLE, assert_param, DMA_CalcBaseAndBitshift(), __DMA_HandleTypeDef::ErrorCode, HAL_DMA_ERROR_NONE, HAL_DMA_STATE_BUSY, HAL_DMA_STATE_RESET, DMA_Base_Registers::IFCR, __DMA_HandleTypeDef::Instance, __DMA_HandleTypeDef::State, and __DMA_HandleTypeDef::StreamIndex.

HAL_StatusTypeDef HAL_DMA_Init

(

DMA_HandleTypeDef *

hdma

)

Initialize the DMA according to the specified parameters in the DMA_InitTypeDef and create the associated handle.

Parameters:

hdma	Pointer to a DMA_HandleTypeDef structure that contains the configuration information for the specified DMA Stream.

Return values:

HAL

status

Definition at line 187 of file stm32f4xx_hal_dma.c.

References __HAL_DMA_DISABLE, assert_param, DMA_InitTypeDef::Channel, DMA_InitTypeDef::Direction, DMA_CalcBaseAndBitshift(), DMA_CheckFifoParam(), DMA_FIFOMODE_DISABLE, DMA_FIFOMODE_ENABLE, DMA_MBURST_SINGLE, __DMA_HandleTypeDef::ErrorCode, DMA_InitTypeDef::FIFOMode, DMA_InitTypeDef::FIFOThreshold, HAL_DMA_ERROR_NONE, HAL_DMA_ERROR_PARAM, HAL_DMA_ERROR_TIMEOUT, HAL_DMA_STATE_BUSY, HAL_DMA_STATE_READY, HAL_DMA_STATE_TIMEOUT, HAL_GetTick(), HAL_TIMEOUT_DMA_ABORT, DMA_Base_Registers::IFCR, __DMA_HandleTypeDef::Init, __DMA_HandleTypeDef::Instance, IS_DMA_CHANNEL, IS_DMA_DIRECTION, IS_DMA_FIFO_MODE_STATE, IS_DMA_FIFO_THRESHOLD, IS_DMA_MEMORY_BURST, IS_DMA_MEMORY_DATA_SIZE, IS_DMA_MEMORY_INC_STATE, IS_DMA_MODE, IS_DMA_PERIPHERAL_BURST, IS_DMA_PERIPHERAL_DATA_SIZE, IS_DMA_PERIPHERAL_INC_STATE, IS_DMA_PRIORITY, DMA_InitTypeDef::MemBurst, DMA_InitTypeDef::MemDataAlignment, DMA_InitTypeDef::MemInc, DMA_InitTypeDef::Mode, DMA_InitTypeDef::PeriphBurst, DMA_InitTypeDef::PeriphDataAlignment, DMA_InitTypeDef::PeriphInc, DMA_InitTypeDef::Priority, __DMA_HandleTypeDef::State, and __DMA_HandleTypeDef::StreamIndex.