stm32l496g_discovery_sd.c File Reference

This file includes the uSD card driver. More...

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Detailed Description

This file includes the uSD card driver.

Author:

MCD Application Team

  ==============================================================================
                     ##### How to use this driver #####
  ==============================================================================
  (#) This driver is used to drive the micro SD external card mounted on STM32L496G-DISCOVERY
     evaluation board.

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

  (#) Initialization steps:
       (++) Initialize the micro SD card using the BSP_SD_Init() function. This
            function includes the MSP layer hardware resources initialization and the
            SDMMC1 interface configuration to interface with the external micro SD. It
            also includes the micro SD initialization sequence.
       (++) To check the SD card presence you can use the function BSP_SD_IsDetected() which
            returns the detection status.
       (++) The function BSP_SD_GetCardInfo() is used to get the micro SD card information
            which is stored in the structure "HAL_SD_CardInfoTypedef".

  (#) Micro SD card operations
       (++) The micro SD card can be accessed with read/write block(s) operations once
            it is reay for access. The access cand be performed whether using the polling
            mode by calling the functions BSP_SD_ReadBlocks()/BSP_SD_WriteBlocks(), or by DMA
            transfer using the functions BSP_SD_ReadBlocks_DMA()/BSP_SD_WriteBlocks_DMA()
       (++) The DMA transfer complete is used with interrupt mode. Once the SD transfer
            is complete, the SD interrupt is handeled using the function BSP_SD_IRQHandler(),
            the DMA Tx/Rx transfer complete are handeled using the functions
            BSP_SD_DMA_Tx_IRQHandler()/BSP_SD_DMA_Rx_IRQHandler(). The corresponding user callbacks
            are implemented by the user at application level.
       (++) The SD erase block(s) is performed using the function BSP_SD_Erase() with specifying
            the number of blocks to erase.
       (++) The SD runtime status is returned when calling the function BSP_SD_GetStatus().
   [..]
  

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_sd.c.