ST / BSP_DISCO_L496AG

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Dependents:   DISCO_L496AG-LCD-prova_1 DISCO_L496AG-LCD-prova_2 DISCO_L496AG-LCD-demo DISCO_L496AG-SRAM-demo

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stm32l496g_discovery_sram.c File Reference
Functions

stm32l496g_discovery_sram.c File Reference

This file provides a set of functions needed to drive the IS66WV51216EBLL SRAM memory mounted on STM32L496G-Discovery board. More...

Go to the source code of this file.

Functions

static void SRAM_MspInit (void)
 Initializes SRAM MSP.
uint8_t BSP_SRAM_Init (void)
 Initializes the SRAM device.
uint8_t BSP_SRAM_ReadData (uint32_t uwStartAddress, uint16_t *pData, uint32_t uwDataSize)
 Reads an amount of data from the SRAM device in polling mode.
uint8_t BSP_SRAM_ReadData_DMA (uint32_t uwStartAddress, uint16_t *pData, uint32_t uwDataSize)
 Reads an amount of data from the SRAM device in DMA mode.
uint8_t BSP_SRAM_WriteData (uint32_t uwStartAddress, uint16_t *pData, uint32_t uwDataSize)
 Writes an amount of data from the SRAM device in polling mode.
uint8_t BSP_SRAM_WriteData_DMA (uint32_t uwStartAddress, uint16_t *pData, uint32_t uwDataSize)
 Writes an amount of data from the SRAM device in DMA mode.
void BSP_SRAM_DMA_IRQHandler (void)
 Handles SRAM DMA transfer interrupt request.

Detailed Description

This file provides a set of functions needed to drive the IS66WV51216EBLL SRAM memory mounted on STM32L496G-Discovery board.

Author:
MCD Application Team 
  ==============================================================================
                     ##### How to use this driver #####
  ==============================================================================
  [..]
   (#) This driver is used to drive the IS66WV51216EBLL-70BLI SRAM external memory mounted
       on STM32L496G-Discovery evaluation board.

   (#) This driver does not need a specific component driver for the SRAM device
       to be included with.

   (#) Initialization steps:
       (++) Initialize the SRAM external memory using the BSP_SRAM_Init() function. This
            function includes the MSP layer hardware resources initialization and the
            FMC controller configuration to interface with the external SRAM memory.

   (#) SRAM read/write operations
       (++) SRAM external memory can be accessed with read/write operations once it is
            initialized.
            Read/write operation can be performed with AHB access using the functions
            BSP_SRAM_ReadData()/BSP_SRAM_WriteData(), or by DMA transfer using the functions
            BSP_SRAM_ReadData_DMA()/BSP_SRAM_WriteData_DMA().
       (++) The AHB access is performed with 16-bit width transaction, the DMA transfer
            configuration is fixed at single (no burst) halfword transfer
            (see the SRAM_MspInit() static function).
       (++) User can implement his own functions for read/write access with his desired
            configurations.
       (++) If interrupt mode is used for DMA transfer, the function BSP_SRAM_DMA_IRQHandler()
            is called in IRQ handler file, to serve the generated interrupt once the DMA
            transfer is complete.
Attention:

© Copyright (c) 2017 STMicroelectronics. All rights reserved.

This software component is licensed by ST under BSD 3-Clause license, the "License"; You may not use this file except in compliance with the License. You may obtain a copy of the License at: opensource.org/licenses/BSD-3-Clause

Definition in file stm32l496g_discovery_sram.c.

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