Initialization and de-initialization functions

Initialization and Configuration functions. More...

Functions
HAL_StatusTypeDef	HAL_SRAM_Init (SRAM_HandleTypeDef *hsram, FMC_NORSRAM_TimingTypeDef *Timing, FMC_NORSRAM_TimingTypeDef *ExtTiming)
	Perform the SRAM device initialization sequence. More...
HAL_StatusTypeDef	HAL_SRAM_DeInit (SRAM_HandleTypeDef *hsram)
	Perform the SRAM device de-initialization sequence. More...
void	HAL_SRAM_MspInit (SRAM_HandleTypeDef *hsram)
	Initialize the SRAM MSP. More...
void	HAL_SRAM_MspDeInit (SRAM_HandleTypeDef *hsram)
	DeInitialize the SRAM MSP. More...
__weak void	HAL_SRAM_DMA_XferCpltCallback (DMA_HandleTypeDef *hdma)
	DMA transfer complete callback. More...
__weak void	HAL_SRAM_DMA_XferErrorCallback (DMA_HandleTypeDef *hdma)
	DMA transfer complete error callback. More...

Detailed Description

Initialization and Configuration functions.

  ==============================================================================
           ##### SRAM Initialization and de-initialization functions #####
  ==============================================================================
    [..]  This section provides functions allowing to initialize/de-initialize
          the SRAM memory.

Function Documentation

HAL_SRAM_DeInit()

HAL_StatusTypeDef HAL_SRAM_DeInit

(

SRAM_HandleTypeDef *

hsram

)

Perform the SRAM device de-initialization sequence.

Parameters

hsram

pointer to a SRAM_HandleTypeDef structure that contains the configuration information for SRAM module.

Return values

HAL

status

Definition at line 162 of file stm32l4xx_hal_sram.c.

{ 
  /* De-Initialize the low level hardware (MSP) */
  HAL_SRAM_MspDeInit(hsram);
   
  /* Configure the SRAM registers with their reset values */
  FMC_NORSRAM_DeInit(hsram->Instance, hsram->Extended, hsram->Init.NSBank);

  hsram->State = HAL_SRAM_STATE_RESET;
  
  /* Release Lock */
  __HAL_UNLOCK(hsram);

  return HAL_OK;
}

HAL_SRAM_DMA_XferCpltCallback()

__weak void HAL_SRAM_DMA_XferCpltCallback

(

DMA_HandleTypeDef *

hdma

)

DMA transfer complete callback.

Parameters

hdma	pointer to a SRAM_HandleTypeDef structure that contains the configuration information for SRAM module.

Return values

None

Definition at line 216 of file stm32l4xx_hal_sram.c.

{
  /* Prevent unused argument(s) compilation warning */
  UNUSED(hdma);

  /* NOTE : This function should not be modified, when the callback is needed,
            the HAL_SRAM_DMA_XferCpltCallback could be implemented in the user file
   */ 
}

HAL_SRAM_DMA_XferErrorCallback()

__weak void HAL_SRAM_DMA_XferErrorCallback

(

DMA_HandleTypeDef *

hdma

)

DMA transfer complete error callback.

Parameters

hdma	pointer to a SRAM_HandleTypeDef structure that contains the configuration information for SRAM module.

Return values

None

Definition at line 232 of file stm32l4xx_hal_sram.c.

{
  /* Prevent unused argument(s) compilation warning */
  UNUSED(hdma);

  /* NOTE : This function should not be modified, when the callback is needed,
            the HAL_SRAM_DMA_XferErrorCallback could be implemented in the user file
   */ 
}

HAL_SRAM_Init()

HAL_StatusTypeDef HAL_SRAM_Init	(	SRAM_HandleTypeDef *	hsram,
		FMC_NORSRAM_TimingTypeDef *	Timing,
		FMC_NORSRAM_TimingTypeDef *	ExtTiming
	)

Perform the SRAM device initialization sequence.

Parameters

hsram	pointer to a SRAM_HandleTypeDef structure that contains the configuration information for SRAM module.
Timing	Pointer to SRAM control timing structure
ExtTiming	Pointer to SRAM extended mode timing structure

Return values

HAL

status

Definition at line 125 of file stm32l4xx_hal_sram.c.

{ 
  /* Check the SRAM handle parameter */
  if(hsram == NULL)
  {
     return HAL_ERROR;
  }
  
  if(hsram->State == HAL_SRAM_STATE_RESET)
  {  
    /* Allocate lock resource and initialize it */
    hsram->Lock = HAL_UNLOCKED;
    /* Initialize the low level hardware (MSP) */
    HAL_SRAM_MspInit(hsram);
  }
  
  /* Initialize SRAM control Interface */
  FMC_NORSRAM_Init(hsram->Instance, &(hsram->Init));

  /* Initialize SRAM timing Interface */
  FMC_NORSRAM_Timing_Init(hsram->Instance, Timing, hsram->Init.NSBank); 

  /* Initialize SRAM extended mode timing Interface */
  FMC_NORSRAM_Extended_Timing_Init(hsram->Extended, ExtTiming, hsram->Init.NSBank,  hsram->Init.ExtendedMode);  
  
  /* Enable the NORSRAM device */
  __FMC_NORSRAM_ENABLE(hsram->Instance, hsram->Init.NSBank); 
  
  return HAL_OK;
}

HAL_SRAM_MspDeInit()

__weak void HAL_SRAM_MspDeInit

(

SRAM_HandleTypeDef *

hsram

)

DeInitialize the SRAM MSP.

Parameters

hsram

pointer to a SRAM_HandleTypeDef structure that contains the configuration information for SRAM module.

Return values

None

Definition at line 200 of file stm32l4xx_hal_sram.c.

{
  /* Prevent unused argument(s) compilation warning */
  UNUSED(hsram);

  /* NOTE : This function should not be modified, when the callback is needed,
            the HAL_SRAM_MspDeInit could be implemented in the user file
   */ 
}

HAL_SRAM_MspInit()

__weak void HAL_SRAM_MspInit

(

SRAM_HandleTypeDef *

hsram

)

Initialize the SRAM MSP.

Parameters

hsram

pointer to a SRAM_HandleTypeDef structure that contains the configuration information for SRAM module.

Return values

None

Definition at line 184 of file stm32l4xx_hal_sram.c.

{
  /* Prevent unused argument(s) compilation warning */
  UNUSED(hsram);

  /* NOTE : This function should not be modified, when the callback is needed,
            the HAL_SRAM_MspInit could be implemented in the user file
   */ 
}