SDRAM Exported Functions

Functions
uint8_t	BSP_SDRAM_Init (void)
	Initializes the SDRAM device.
uint8_t	BSP_SDRAM_DeInit (void)
	DeInitializes the SDRAM device.
void	BSP_SDRAM_Initialization_sequence (uint32_t RefreshCount)
	Programs the SDRAM device.
uint8_t	BSP_SDRAM_ReadData (uint32_t uwStartAddress, uint32_t *pData, uint32_t uwDataSize)
	Reads an amount of data from the SDRAM memory in polling mode.
uint8_t	BSP_SDRAM_ReadData_DMA (uint32_t uwStartAddress, uint32_t *pData, uint32_t uwDataSize)
	Reads an amount of data from the SDRAM memory in DMA mode.
uint8_t	BSP_SDRAM_WriteData (uint32_t uwStartAddress, uint32_t *pData, uint32_t uwDataSize)
	Writes an amount of data to the SDRAM memory in polling mode.
uint8_t	BSP_SDRAM_WriteData_DMA (uint32_t uwStartAddress, uint32_t *pData, uint32_t uwDataSize)
	Writes an amount of data to the SDRAM memory in DMA mode.
uint8_t	BSP_SDRAM_Sendcmd (FMC_SDRAM_CommandTypeDef *SdramCmd)
	Sends command to the SDRAM bank.
__weak void	BSP_SDRAM_MspInit (SDRAM_HandleTypeDef *hsdram, void *Params)
	Initializes SDRAM MSP.
__weak void	BSP_SDRAM_MspDeInit (SDRAM_HandleTypeDef *hsdram, void *Params)
	DeInitializes SDRAM MSP.

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Function Documentation

uint8_t BSP_SDRAM_DeInit

(

void

)

DeInitializes the SDRAM device.

Return values:

SDRAM

status

Definition at line 186 of file stm32h743i_eval_sdram.c.

References BSP_SDRAM_MspDeInit(), SDRAM_ERROR, SDRAM_OK, and sdramHandle.

uint8_t BSP_SDRAM_Init

(

void

)

Initializes the SDRAM device.

Return values:

SDRAM

status

Definition at line 138 of file stm32h743i_eval_sdram.c.

References BSP_SDRAM_Initialization_sequence(), BSP_SDRAM_MspInit(), REFRESH_COUNT, SDCLOCK_PERIOD, SDRAM_ERROR, SDRAM_MEMORY_WIDTH, SDRAM_OK, sdramHandle, and Timing.

Referenced by BSP_LCD_InitEx().

void BSP_SDRAM_Initialization_sequence

(

uint32_t

RefreshCount

)

Programs the SDRAM device.

Parameters:

RefreshCount,:

SDRAM refresh counter value

Return values:

None

Definition at line 212 of file stm32h743i_eval_sdram.c.

References Command, SDRAM_MODEREG_BURST_LENGTH_1, SDRAM_MODEREG_BURST_TYPE_SEQUENTIAL, SDRAM_MODEREG_CAS_LATENCY_3, SDRAM_MODEREG_OPERATING_MODE_STANDARD, SDRAM_MODEREG_WRITEBURST_MODE_SINGLE, SDRAM_TIMEOUT, and sdramHandle.

Referenced by BSP_SDRAM_Init().

void BSP_SDRAM_MspDeInit	(	SDRAM_HandleTypeDef *	hsdram,
		void *	Params
	)

DeInitializes SDRAM MSP.

Parameters:

hsdram,:	SDRAM handle
Params,:	Pointer to void

Return values:

None

Definition at line 466 of file stm32h743i_eval_sdram.c.

References SDRAM_MDMAx_CHANNEL, and SDRAM_MDMAx_IRQn.

Referenced by BSP_SDRAM_DeInit().

void BSP_SDRAM_MspInit	(	SDRAM_HandleTypeDef *	hsdram,
		void *	Params
	)

Initializes SDRAM MSP.

Parameters:

hsdram,:	SDRAM handle
Params,:	Pointer to void

Return values:

None

Definition at line 366 of file stm32h743i_eval_sdram.c.

References __MDMAx_CLK_ENABLE, SDRAM_MDMAx_CHANNEL, and SDRAM_MDMAx_IRQn.

Referenced by BSP_SDRAM_Init().

uint8_t BSP_SDRAM_ReadData	(	uint32_t	uwStartAddress,
		uint32_t *	pData,
		uint32_t	uwDataSize
	)

Reads an amount of data from the SDRAM memory 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:

SDRAM

status

Definition at line 274 of file stm32h743i_eval_sdram.c.

References SDRAM_ERROR, SDRAM_OK, and sdramHandle.

uint8_t BSP_SDRAM_ReadData_DMA	(	uint32_t	uwStartAddress,
		uint32_t *	pData,
		uint32_t	uwDataSize
	)

Reads an amount of data from the SDRAM memory 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:

SDRAM

status

Definition at line 293 of file stm32h743i_eval_sdram.c.

References SDRAM_ERROR, SDRAM_OK, and sdramHandle.

uint8_t BSP_SDRAM_Sendcmd

(

FMC_SDRAM_CommandTypeDef *

SdramCmd

)

Sends command to the SDRAM bank.

Parameters:

SdramCmd,:

Pointer to SDRAM command structure

Return values:

SDRAM

status

Definition at line 348 of file stm32h743i_eval_sdram.c.

References SDRAM_ERROR, SDRAM_OK, SDRAM_TIMEOUT, and sdramHandle.

uint8_t BSP_SDRAM_WriteData	(	uint32_t	uwStartAddress,
		uint32_t *	pData,
		uint32_t	uwDataSize
	)

Writes an amount of data to the SDRAM memory 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:

SDRAM

status

Definition at line 312 of file stm32h743i_eval_sdram.c.

References SDRAM_ERROR, SDRAM_OK, and sdramHandle.

uint8_t BSP_SDRAM_WriteData_DMA	(	uint32_t	uwStartAddress,
		uint32_t *	pData,
		uint32_t	uwDataSize
	)

Writes an amount of data to the SDRAM memory 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:

SDRAM

status

Definition at line 331 of file stm32h743i_eval_sdram.c.

References SDRAM_ERROR, SDRAM_OK, and sdramHandle.