SDIO block device driver.

This is not officially supported driver.

The software is provided under Apache-2.0 license. Contributions to this project are accepted under the same license. Please see contributing.md for more info.

This is an implementation for a blockdevice to use SDHC cards via SDIO interface.

• STM32F4
• STM32F7

• STM Discovery board 32F469IDISCOVERY, Targetname: DISCO_F469NI https://os.mbed.com/platforms/ST-Discovery-F469NI/
• STM Discovery board 32F746IDISCOVERY, Targetname: DISCO_F746NG https://os.mbed.com/platforms/ST-Discovery-F746NG/

This SDIOBlockdevice inherits from Blockdevice. The implementation uses an intermediate layer for the target specific code. This version uses the STM HAL for the SD card communication, an approach that is not fully mBed compliant. So this driver is not part of the mbed-os, a cleaner solution maybe supplied in the future. Anyway, this driver passes the same tests as for a SDBlockdevice with SPI interface.

The driver is used like other blockdevices, a good starting point is https://github.com/ARMmbed/mbed-os-example-filesystem