STM32H735xx HAL User Manual: Initialization and de-initialization functions

STM32H735xx HAL User Manual

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.

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 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.
    The HAL_DMA_DeInit function allows to deinitialize the DMA stream.

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 462 of file stm32h7xx_hal_dma.c.

References __HAL_DMA_DISABLE, DMA_CalcBaseAndBitshift(), DMA_CalcDMAMUXChannelBaseAndMask(), DMA_CalcDMAMUXRequestGenBaseAndMask(), DMA_REQUEST_GENERATOR0, DMA_REQUEST_GENERATOR7, __DMA_HandleTypeDef::DMAmuxChannel, __DMA_HandleTypeDef::DMAmuxChannelStatus, __DMA_HandleTypeDef::DMAmuxChannelStatusMask, __DMA_HandleTypeDef::DMAmuxRequestGen, __DMA_HandleTypeDef::DMAmuxRequestGenStatus, __DMA_HandleTypeDef::DMAmuxRequestGenStatusMask, __DMA_HandleTypeDef::ErrorCode, HAL_DMA_ERROR_NONE, HAL_DMA_STATE_RESET, DMA_Base_Registers::IFCR, BDMA_Base_Registers::IFCR, __DMA_HandleTypeDef::Init, __DMA_HandleTypeDef::Instance, DMA_InitTypeDef::Request, __DMA_HandleTypeDef::State, __DMA_HandleTypeDef::StreamIndex, __DMA_HandleTypeDef::XferAbortCallback, __DMA_HandleTypeDef::XferCpltCallback, __DMA_HandleTypeDef::XferErrorCallback, __DMA_HandleTypeDef::XferHalfCpltCallback, __DMA_HandleTypeDef::XferM1CpltCallback, and __DMA_HandleTypeDef::XferM1HalfCpltCallback.

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 210 of file stm32h7xx_hal_dma.c.

References __HAL_DMA_DISABLE, assert_param, DMA_InitTypeDef::Direction, DMA_CalcBaseAndBitshift(), DMA_CalcDMAMUXChannelBaseAndMask(), DMA_CalcDMAMUXRequestGenBaseAndMask(), DMA_CheckFifoParam(), DMA_FIFOMODE_DISABLE, DMA_FIFOMODE_ENABLE, DMA_MBURST_SINGLE, DMA_MEMORY_TO_MEMORY, DMA_REQUEST_GENERATOR0, DMA_REQUEST_GENERATOR7, DMA_REQUEST_MEM2MEM, DMA_TO_BDMA_DIRECTION, DMA_TO_BDMA_MDATA_SIZE, DMA_TO_BDMA_MEMORY_INC, DMA_TO_BDMA_MODE, DMA_TO_BDMA_PDATA_SIZE, DMA_TO_BDMA_PERIPHERAL_INC, DMA_TO_BDMA_PRIORITY, __DMA_HandleTypeDef::DMAmuxChannel, __DMA_HandleTypeDef::DMAmuxChannelStatus, __DMA_HandleTypeDef::DMAmuxChannelStatusMask, __DMA_HandleTypeDef::DMAmuxRequestGen, __DMA_HandleTypeDef::DMAmuxRequestGenStatus, __DMA_HandleTypeDef::DMAmuxRequestGenStatusMask, __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_ERROR, HAL_DMA_STATE_READY, HAL_GetTick(), HAL_TIMEOUT_DMA_ABORT, DMA_Base_Registers::IFCR, BDMA_Base_Registers::IFCR, __DMA_HandleTypeDef::Init, __DMA_HandleTypeDef::Instance, IS_BDMA_REQUEST, 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, IS_DMA_REQUEST, IS_DMA_UART_USART_REQUEST, 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_InitTypeDef::Request, __DMA_HandleTypeDef::State, and __DMA_HandleTypeDef::StreamIndex.