STM32746G-Discovery BSP User Manual: stm32746g_discovery_sd.c File Reference

This file includes the uSD card driver mounted on STM32746G-Discovery board.

Author:

MCD Application Team

Version:

V2.0.0

Date:

30-December-2016

   1. How To use this driver:
   --------------------------
      - This driver is used to drive the micro SD external card mounted on STM32746G-Discovery
        board.
      - This driver does not need a specific component driver for the micro SD device
        to be included with.
   
   2. Driver description:
   ---------------------
     + Initialization steps:
        o Initialize the micro SD card using the BSP_SD_Init() function. This 
          function includes the MSP layer hardware resources initialization and the
          SDIO interface configuration to interface with the external micro SD. It 
          also includes the micro SD initialization sequence.
        o To check the SD card presence you can use the function BSP_SD_IsDetected() which 
          returns the detection status 
        o If SD presence detection interrupt mode is desired, you must configure the 
          SD detection interrupt mode by calling the function BSP_SD_ITConfig(). The interrupt 
          is generated as an external interrupt whenever the micro SD card is 
          plugged/unplugged in/from the board.
        o 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
        o The micro SD card can be accessed with read/write block(s) operations once 
          it is ready for access. The access can 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()
        o The DMA transfer complete is used with interrupt mode. Once the SD transfer
          is complete, the SD interrupt is handled using the function BSP_SD_IRQHandler(),
          the DMA Tx/Rx transfer complete are handled 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. 
        o The SD erase block(s) is performed using the function BSP_SD_Erase() with specifying
          the number of blocks to erase.
        o The SD runtime status is returned when calling the function BSP_SD_GetCardState().

  

Attention:

© COPYRIGHT(c) 2016 STMicroelectronics

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. 3. Neither the name of STMicroelectronics nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

Definition in file stm32746g_discovery_sd.c.