Data transfer functions. More...

Functions
HAL_StatusTypeDef	HAL_MMC_ReadBlocks (MMC_HandleTypeDef hmmc, uint8_t pData, uint32_t BlockAdd, uint32_t NumberOfBlocks, uint32_t Timeout)
	Reads block(s) from a specified address in a card.
HAL_StatusTypeDef	HAL_MMC_WriteBlocks (MMC_HandleTypeDef hmmc, uint8_t pData, uint32_t BlockAdd, uint32_t NumberOfBlocks, uint32_t Timeout)
	Allows to write block(s) to a specified address in a card.
HAL_StatusTypeDef	HAL_MMC_ReadBlocks_IT (MMC_HandleTypeDef hmmc, uint8_t pData, uint32_t BlockAdd, uint32_t NumberOfBlocks)
	Reads block(s) from a specified address in a card.
HAL_StatusTypeDef	HAL_MMC_WriteBlocks_IT (MMC_HandleTypeDef hmmc, uint8_t pData, uint32_t BlockAdd, uint32_t NumberOfBlocks)
	Writes block(s) to a specified address in a card.
HAL_StatusTypeDef	HAL_MMC_ReadBlocks_DMA (MMC_HandleTypeDef hmmc, uint8_t pData, uint32_t BlockAdd, uint32_t NumberOfBlocks)
	Reads block(s) from a specified address in a card.
HAL_StatusTypeDef	HAL_MMC_WriteBlocks_DMA (MMC_HandleTypeDef hmmc, uint8_t pData, uint32_t BlockAdd, uint32_t NumberOfBlocks)
	Writes block(s) to a specified address in a card.
HAL_StatusTypeDef	HAL_MMC_Erase (MMC_HandleTypeDef *hmmc, uint32_t BlockStartAdd, uint32_t BlockEndAdd)
	Erases the specified memory area of the given MMC card.
void	HAL_MMC_IRQHandler (MMC_HandleTypeDef *hmmc)
	This function handles MMC card interrupt request.
HAL_MMC_StateTypeDef	HAL_MMC_GetState (MMC_HandleTypeDef *hmmc)
	return the MMC state
uint32_t	HAL_MMC_GetError (MMC_HandleTypeDef *hmmc)
	Return the MMC error code.
__weak void	HAL_MMC_TxCpltCallback (MMC_HandleTypeDef *hmmc)
	Tx Transfer completed callbacks.
__weak void	HAL_MMC_RxCpltCallback (MMC_HandleTypeDef *hmmc)
	Rx Transfer completed callbacks.
__weak void	HAL_MMC_ErrorCallback (MMC_HandleTypeDef *hmmc)
	MMC error callbacks.
__weak void	HAL_MMC_AbortCallback (MMC_HandleTypeDef *hmmc)
	MMC Abort callbacks.

Detailed Description

Data transfer functions.

  ==============================================================================
                        ##### IO operation functions #####
  ==============================================================================  
  [..]
    This subsection provides a set of functions allowing to manage the data 
    transfer from/to MMC card.

Function Documentation

void HAL_MMC_AbortCallback ( MMC_HandleTypeDef * hmmc )

MMC Abort callbacks.

Parameters:

hmmc	Pointer MMC handle

Return values:

None

Definition at line 1678 of file stm32f4xx_hal_mmc.c.

Referenced by HAL_MMC_Abort_IT(), HAL_MMC_IRQHandler(), MMC_DMARxAbort(), and MMC_DMATxAbort().

HAL_StatusTypeDef HAL_MMC_Erase	(	MMC_HandleTypeDef *	hmmc,
		uint32_t	BlockStartAdd,
		uint32_t	BlockEndAdd
	)

Erases the specified memory area of the given MMC card.

Note:: This API should be followed by a check on the card state through HAL_MMC_GetCardState().

Parameters:

hmmc	Pointer to MMC handle
BlockStartAdd	Start Block address
BlockEndAdd	End Block address

Return values:

HAL status

Definition at line 1294 of file stm32f4xx_hal_mmc.c.

References __HAL_MMC_CLEAR_FLAG, CAPACITY, HAL_MMC_CardInfoTypeDef::Class, MMC_HandleTypeDef::ErrorCode, HAL_DMA_ERROR_NONE, HAL_MMC_ERROR_ADDR_OUT_OF_RANGE, HAL_MMC_ERROR_LOCK_UNLOCK_FAILED, HAL_MMC_ERROR_NONE, HAL_MMC_ERROR_PARAM, HAL_MMC_ERROR_REQUEST_NOT_APPLICABLE, HAL_MMC_STATE_BUSY, HAL_MMC_STATE_READY, MMC_HandleTypeDef::Instance, HAL_MMC_CardInfoTypeDef::LogBlockNbr, MMC_HandleTypeDef::MmcCard, and MMC_HandleTypeDef::State.

void HAL_MMC_ErrorCallback ( MMC_HandleTypeDef * hmmc )

MMC error callbacks.

Parameters:

hmmc	Pointer MMC handle

Return values:

None

Definition at line 1663 of file stm32f4xx_hal_mmc.c.

Referenced by HAL_MMC_IRQHandler(), MMC_DMAError(), MMC_DMAReceiveCplt(), MMC_DMARxAbort(), and MMC_DMATxAbort().

uint32_t HAL_MMC_GetError ( MMC_HandleTypeDef * hmmc )

Return the MMC error code.

Parameters:

hmmc	Pointer to a MMC_HandleTypeDef structure that contains the configuration information.

Return values:

MMC	Error Code

Definition at line 1623 of file stm32f4xx_hal_mmc.c.

References MMC_HandleTypeDef::ErrorCode.

HAL_MMC_StateTypeDef HAL_MMC_GetState ( MMC_HandleTypeDef * hmmc )

return the MMC state

Parameters:

hmmc	Pointer to mmc handle

Return values:

HAL state

Definition at line 1612 of file stm32f4xx_hal_mmc.c.

References MMC_HandleTypeDef::State.

void HAL_MMC_IRQHandler ( MMC_HandleTypeDef * hmmc )

This function handles MMC card interrupt request.

Parameters:

hmmc	Pointer to MMC handle

Return values:

None

Definition at line 1390 of file stm32f4xx_hal_mmc.c.

References __HAL_MMC_CLEAR_FLAG, __HAL_MMC_DISABLE_IT, __HAL_MMC_GET_FLAG, MMC_HandleTypeDef::Context, MMC_HandleTypeDef::ErrorCode, HAL_DMA_Abort_IT(), HAL_MMC_AbortCallback(), HAL_MMC_ERROR_DATA_CRC_FAIL, HAL_MMC_ERROR_DATA_TIMEOUT, HAL_MMC_ERROR_NONE, HAL_MMC_ERROR_RX_OVERRUN, HAL_MMC_ERROR_TX_UNDERRUN, HAL_MMC_ErrorCallback(), HAL_MMC_RxCpltCallback(), HAL_MMC_STATE_READY, HAL_MMC_TxCpltCallback(), MMC_HandleTypeDef::hdmarx, MMC_HandleTypeDef::hdmatx, MMC_HandleTypeDef::Instance, MMC_CONTEXT_DMA, MMC_CONTEXT_IT, MMC_CONTEXT_READ_MULTIPLE_BLOCK, MMC_CONTEXT_READ_SINGLE_BLOCK, MMC_CONTEXT_WRITE_MULTIPLE_BLOCK, MMC_DMARxAbort(), MMC_DMATxAbort(), MMC_Read_IT(), MMC_Write_IT(), MMC_HandleTypeDef::State, and __DMA_HandleTypeDef::XferAbortCallback.

HAL_StatusTypeDef HAL_MMC_ReadBlocks	(	MMC_HandleTypeDef *	hmmc,
		uint8_t *	pData,
		uint32_t	BlockAdd,
		uint32_t	NumberOfBlocks,
		uint32_t	Timeout
	)

Reads block(s) from a specified address in a card.

The Data transfer is managed by polling mode.

Note:: This API should be followed by a check on the card state through HAL_MMC_GetCardState().

Parameters:

hmmc	Pointer to MMC handle
pData	pointer to the buffer that will contain the received data
BlockAdd	Block Address from where data is to be read
NumberOfBlocks	Number of MMC blocks to read
Timeout	Specify timeout value

Return values:

HAL status

Definition at line 494 of file stm32f4xx_hal_mmc.c.

References __HAL_MMC_CLEAR_FLAG, __HAL_MMC_GET_FLAG, BLOCKSIZE, CAPACITY, MMC_HandleTypeDef::Context, MMC_HandleTypeDef::ErrorCode, HAL_DMA_ERROR_NONE, HAL_GetTick(), HAL_MMC_ERROR_ADDR_OUT_OF_RANGE, HAL_MMC_ERROR_BUSY, HAL_MMC_ERROR_DATA_CRC_FAIL, HAL_MMC_ERROR_DATA_TIMEOUT, HAL_MMC_ERROR_NONE, HAL_MMC_ERROR_PARAM, HAL_MMC_ERROR_RX_OVERRUN, HAL_MMC_ERROR_TIMEOUT, HAL_MMC_STATE_BUSY, HAL_MMC_STATE_READY, MMC_HandleTypeDef::Instance, HAL_MMC_CardInfoTypeDef::LogBlockNbr, MMC_CONTEXT_READ_MULTIPLE_BLOCK, MMC_CONTEXT_READ_SINGLE_BLOCK, MMC_HandleTypeDef::MmcCard, and MMC_HandleTypeDef::State.

HAL_StatusTypeDef HAL_MMC_ReadBlocks_DMA	(	MMC_HandleTypeDef *	hmmc,
		uint8_t *	pData,
		uint32_t	BlockAdd,
		uint32_t	NumberOfBlocks
	)

Reads block(s) from a specified address in a card.

The Data transfer is managed by DMA mode.

Note:: This API should be followed by a check on the card state through HAL_MMC_GetCardState().; You could also check the DMA transfer process through the MMC Rx interrupt event.

Parameters:

hmmc	Pointer MMC handle
pData	Pointer to the buffer that will contain the received data
BlockAdd	Block Address from where data is to be read
NumberOfBlocks	Number of blocks to read.

Return values:

HAL status

Definition at line 1061 of file stm32f4xx_hal_mmc.c.

References __HAL_MMC_CLEAR_FLAG, __HAL_MMC_DMA_ENABLE, __HAL_MMC_ENABLE_IT, BLOCKSIZE, CAPACITY, MMC_HandleTypeDef::Context, MMC_HandleTypeDef::ErrorCode, HAL_DMA_ERROR_NONE, HAL_DMA_Start_IT(), HAL_MMC_ERROR_ADDR_OUT_OF_RANGE, HAL_MMC_ERROR_NONE, HAL_MMC_ERROR_PARAM, HAL_MMC_STATE_BUSY, HAL_MMC_STATE_READY, MMC_HandleTypeDef::hdmarx, MMC_HandleTypeDef::Instance, HAL_MMC_CardInfoTypeDef::LogBlockNbr, MMC_CONTEXT_DMA, MMC_CONTEXT_READ_MULTIPLE_BLOCK, MMC_CONTEXT_READ_SINGLE_BLOCK, MMC_DMAError(), MMC_DMAReceiveCplt(), MMC_HandleTypeDef::MmcCard, MMC_HandleTypeDef::State, __DMA_HandleTypeDef::XferAbortCallback, __DMA_HandleTypeDef::XferCpltCallback, and __DMA_HandleTypeDef::XferErrorCallback.

HAL_StatusTypeDef HAL_MMC_ReadBlocks_IT	(	MMC_HandleTypeDef *	hmmc,
		uint8_t *	pData,
		uint32_t	BlockAdd,
		uint32_t	NumberOfBlocks
	)

Reads block(s) from a specified address in a card.

The Data transfer is managed in interrupt mode.

Note:: This API should be followed by a check on the card state through HAL_MMC_GetCardState().; You could also check the IT transfer process through the MMC Rx interrupt event.

Parameters:

hmmc	Pointer to MMC handle
pData	Pointer to the buffer that will contain the received data
BlockAdd	Block Address from where data is to be read
NumberOfBlocks	Number of blocks to read.

Return values:

HAL status

Definition at line 856 of file stm32f4xx_hal_mmc.c.

References __HAL_MMC_CLEAR_FLAG, __HAL_MMC_ENABLE_IT, BLOCKSIZE, CAPACITY, MMC_HandleTypeDef::Context, MMC_HandleTypeDef::ErrorCode, HAL_DMA_ERROR_NONE, HAL_MMC_ERROR_ADDR_OUT_OF_RANGE, HAL_MMC_ERROR_NONE, HAL_MMC_ERROR_PARAM, HAL_MMC_STATE_BUSY, HAL_MMC_STATE_READY, MMC_HandleTypeDef::Instance, HAL_MMC_CardInfoTypeDef::LogBlockNbr, MMC_CONTEXT_IT, MMC_CONTEXT_READ_MULTIPLE_BLOCK, MMC_CONTEXT_READ_SINGLE_BLOCK, MMC_HandleTypeDef::MmcCard, MMC_HandleTypeDef::pRxBuffPtr, MMC_HandleTypeDef::RxXferSize, and MMC_HandleTypeDef::State.

void HAL_MMC_RxCpltCallback ( MMC_HandleTypeDef * hmmc )

Rx Transfer completed callbacks.

Parameters:

hmmc	Pointer MMC handle

Return values:

None

Definition at line 1648 of file stm32f4xx_hal_mmc.c.

Referenced by HAL_MMC_IRQHandler(), and MMC_DMAReceiveCplt().

void HAL_MMC_TxCpltCallback ( MMC_HandleTypeDef * hmmc )

Tx Transfer completed callbacks.

Parameters:

hmmc	Pointer to MMC handle

Return values:

None

Definition at line 1633 of file stm32f4xx_hal_mmc.c.

Referenced by HAL_MMC_IRQHandler().

HAL_StatusTypeDef HAL_MMC_WriteBlocks	(	MMC_HandleTypeDef *	hmmc,
		uint8_t *	pData,
		uint32_t	BlockAdd,
		uint32_t	NumberOfBlocks,
		uint32_t	Timeout
	)

Allows to write block(s) to a specified address in a card.

The Data transfer is managed by polling mode.

Note:: This API should be followed by a check on the card state through HAL_MMC_GetCardState().

Parameters:

hmmc	Pointer to MMC handle
pData	pointer to the buffer that will contain the data to transmit
BlockAdd	Block Address where data will be written
NumberOfBlocks	Number of MMC blocks to write
Timeout	Specify timeout value

Return values:

HAL status

Definition at line 682 of file stm32f4xx_hal_mmc.c.

References __HAL_MMC_CLEAR_FLAG, __HAL_MMC_GET_FLAG, BLOCKSIZE, CAPACITY, MMC_HandleTypeDef::Context, MMC_HandleTypeDef::ErrorCode, HAL_DMA_ERROR_NONE, HAL_GetTick(), HAL_MMC_ERROR_ADDR_OUT_OF_RANGE, HAL_MMC_ERROR_BUSY, HAL_MMC_ERROR_DATA_CRC_FAIL, HAL_MMC_ERROR_DATA_TIMEOUT, HAL_MMC_ERROR_NONE, HAL_MMC_ERROR_PARAM, HAL_MMC_ERROR_TX_UNDERRUN, HAL_MMC_STATE_BUSY, HAL_MMC_STATE_READY, MMC_HandleTypeDef::Instance, HAL_MMC_CardInfoTypeDef::LogBlockNbr, MMC_CONTEXT_WRITE_MULTIPLE_BLOCK, MMC_CONTEXT_WRITE_SINGLE_BLOCK, MMC_HandleTypeDef::MmcCard, and MMC_HandleTypeDef::State.

HAL_StatusTypeDef HAL_MMC_WriteBlocks_DMA	(	MMC_HandleTypeDef *	hmmc,
		uint8_t *	pData,
		uint32_t	BlockAdd,
		uint32_t	NumberOfBlocks
	)

Writes block(s) to a specified address in a card.

The Data transfer is managed by DMA mode.

Note:: This API should be followed by a check on the card state through HAL_MMC_GetCardState().; You could also check the DMA transfer process through the MMC Tx interrupt event.

Parameters:

hmmc	Pointer to MMC handle
pData	Pointer to the buffer that will contain the data to transmit
BlockAdd	Block Address where data will be written
NumberOfBlocks	Number of blocks to write

Return values:

HAL status

Definition at line 1179 of file stm32f4xx_hal_mmc.c.

References __HAL_MMC_CLEAR_FLAG, __HAL_MMC_DMA_ENABLE, __HAL_MMC_ENABLE_IT, BLOCKSIZE, CAPACITY, MMC_HandleTypeDef::Context, MMC_HandleTypeDef::ErrorCode, HAL_DMA_ERROR_NONE, HAL_DMA_Start_IT(), HAL_MMC_ERROR_ADDR_OUT_OF_RANGE, HAL_MMC_ERROR_NONE, HAL_MMC_ERROR_PARAM, HAL_MMC_STATE_BUSY, HAL_MMC_STATE_READY, MMC_HandleTypeDef::hdmatx, MMC_HandleTypeDef::Instance, HAL_MMC_CardInfoTypeDef::LogBlockNbr, MMC_CONTEXT_DMA, MMC_CONTEXT_WRITE_MULTIPLE_BLOCK, MMC_CONTEXT_WRITE_SINGLE_BLOCK, MMC_DMAError(), MMC_DMATransmitCplt(), MMC_HandleTypeDef::MmcCard, MMC_HandleTypeDef::State, __DMA_HandleTypeDef::XferAbortCallback, __DMA_HandleTypeDef::XferCpltCallback, and __DMA_HandleTypeDef::XferErrorCallback.

HAL_StatusTypeDef HAL_MMC_WriteBlocks_IT	(	MMC_HandleTypeDef *	hmmc,
		uint8_t *	pData,
		uint32_t	BlockAdd,
		uint32_t	NumberOfBlocks
	)

Writes block(s) to a specified address in a card.

The Data transfer is managed in interrupt mode.

Note:: This API should be followed by a check on the card state through HAL_MMC_GetCardState().; You could also check the IT transfer process through the MMC Tx interrupt event.

Parameters:

hmmc	Pointer to MMC handle
pData	Pointer to the buffer that will contain the data to transmit
BlockAdd	Block Address where data will be written
NumberOfBlocks	Number of blocks to write

Return values:

HAL status

Definition at line 958 of file stm32f4xx_hal_mmc.c.

References __HAL_MMC_CLEAR_FLAG, __HAL_MMC_ENABLE_IT, BLOCKSIZE, CAPACITY, MMC_HandleTypeDef::Context, MMC_HandleTypeDef::ErrorCode, HAL_DMA_ERROR_NONE, HAL_MMC_ERROR_ADDR_OUT_OF_RANGE, HAL_MMC_ERROR_NONE, HAL_MMC_ERROR_PARAM, HAL_MMC_STATE_BUSY, HAL_MMC_STATE_READY, MMC_HandleTypeDef::Instance, HAL_MMC_CardInfoTypeDef::LogBlockNbr, MMC_CONTEXT_IT, MMC_CONTEXT_WRITE_MULTIPLE_BLOCK, MMC_CONTEXT_WRITE_SINGLE_BLOCK, MMC_HandleTypeDef::MmcCard, MMC_HandleTypeDef::pTxBuffPtr, MMC_HandleTypeDef::State, and MMC_HandleTypeDef::TxXferSize.

Functions

Detailed Description

Function Documentation