Exported Functions

Functions
uint8_t	BSP_PSRAM_Init (void)
	Initializes the PSRAM device.
uint8_t	BSP_PSRAM_DeInit (void)
	DeInitializes the PSRAM device.
uint8_t	BSP_PSRAM_ReadData (uint32_t uwStartAddress, uint16_t *pData, uint32_t uwDataSize)
	Reads an amount of data from the PSRAM device in polling mode.
uint8_t	BSP_PSRAM_ReadData_DMA (uint32_t uwStartAddress, uint16_t *pData, uint32_t uwDataSize)
	Reads an amount of data from the PSRAM device in DMA mode.
uint8_t	BSP_PSRAM_WriteData (uint32_t uwStartAddress, uint16_t *pData, uint32_t uwDataSize)
	Writes an amount of data from the PSRAM device in polling mode.
uint8_t	BSP_PSRAM_WriteData_DMA (uint32_t uwStartAddress, uint16_t *pData, uint32_t uwDataSize)
	Writes an amount of data from the PSRAM device in DMA mode.
void	BSP_PSRAM_MspInit (SRAM_HandleTypeDef *hsram, void *Params)
	Initializes PSRAM MSP.
void	BSP_PSRAM_MspDeInit (SRAM_HandleTypeDef *hsram, void *Params)
	DeInitializes SRAM MSP.

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Function Documentation

uint8_t BSP_PSRAM_DeInit

(

void

)

DeInitializes the PSRAM device.

Return values:

PSRAM

status

Definition at line 175 of file stm32l4r9i_discovery_psram.c.

References bsp_psram_initialized, BSP_PSRAM_MspDeInit(), PSRAM_ERROR, PSRAM_OK, PSRAM_PowerOff(), and psramHandle.

uint8_t BSP_PSRAM_Init

(

void

)

Initializes the PSRAM device.

Return values:

PSRAM

status

Definition at line 112 of file stm32l4r9i_discovery_psram.c.

References bsp_psram_initialized, BSP_PSRAM_MspInit(), PSRAM_ERROR, PSRAM_OK, PSRAM_PowerOn(), and psramHandle.

void BSP_PSRAM_MspDeInit	(	SRAM_HandleTypeDef *	hsram,
		void *	Params
	)

DeInitializes SRAM MSP.

Parameters:

hsram,:	SRAM handle
Params

Return values:

None

Definition at line 414 of file stm32l4r9i_discovery_psram.c.

References PSRAM_DMAx_INSTANCE, and PSRAM_DMAx_IRQn.

Referenced by BSP_PSRAM_DeInit().

void BSP_PSRAM_MspInit	(	SRAM_HandleTypeDef *	hsram,
		void *	Params
	)

Initializes PSRAM MSP.

Parameters:

hsram,:	PSRAM handle
Params

Return values:

None

Definition at line 288 of file stm32l4r9i_discovery_psram.c.

References __PSRAM_DMAx_CLK_ENABLE, PSRAM_DMAx_INSTANCE, and PSRAM_DMAx_IRQn.

Referenced by BSP_PSRAM_Init().

uint8_t BSP_PSRAM_ReadData	(	uint32_t	uwStartAddress,
		uint16_t *	pData,
		uint32_t	uwDataSize
	)

Reads an amount of data from the PSRAM device in polling mode.

Parameters:

uwStartAddress,:	Read start address
pData,:	Pointer to data to be read
uwDataSize,:	Size of read data from the memory

Return values:

PSRAM

status

Definition at line 213 of file stm32l4r9i_discovery_psram.c.

References PSRAM_ERROR, PSRAM_OK, and psramHandle.

uint8_t BSP_PSRAM_ReadData_DMA	(	uint32_t	uwStartAddress,
		uint16_t *	pData,
		uint32_t	uwDataSize
	)

Reads an amount of data from the PSRAM device in DMA mode.

Parameters:

uwStartAddress,:	Read start address
pData,:	Pointer to data to be read
uwDataSize,:	Size of read data from the memory

Return values:

PSRAM

status

Definition at line 232 of file stm32l4r9i_discovery_psram.c.

References PSRAM_ERROR, PSRAM_OK, and psramHandle.

uint8_t BSP_PSRAM_WriteData	(	uint32_t	uwStartAddress,
		uint16_t *	pData,
		uint32_t	uwDataSize
	)

Writes an amount of data from the PSRAM device in polling mode.

Parameters:

uwStartAddress,:	Write start address
pData,:	Pointer to data to be written
uwDataSize,:	Size of written data from the memory

Return values:

PSRAM

status

Definition at line 251 of file stm32l4r9i_discovery_psram.c.

References PSRAM_ERROR, PSRAM_OK, and psramHandle.

uint8_t BSP_PSRAM_WriteData_DMA	(	uint32_t	uwStartAddress,
		uint16_t *	pData,
		uint32_t	uwDataSize
	)

Writes an amount of data from the PSRAM device in DMA mode.

Parameters:

uwStartAddress,:	Write start address
pData,:	Pointer to data to be written
uwDataSize,:	Size of written data from the memory

Return values:

PSRAM

status

Definition at line 270 of file stm32l4r9i_discovery_psram.c.

References PSRAM_ERROR, PSRAM_OK, and psramHandle.