How to create a file system on a SD card using SPI

HDaji.1 · ‎2025-04-16

Moved to main forum from How to create a file system on a SD card using STM32CubeIDE for better visibility & discussion.

Hi @ST AME Support NF ,

Is there any guide on using SPI to create a file system on SD card?

Andrew Neil · ‎2025-04-16

The question is really, "how to configure FatFs to use SPI" ?

Once you have done that, higher-level functions - like creating a filesystem - are oblivious to the underlying interface.

See: http://elm-chan.org/fsw/ff/doc/appnote.html#port

A complex system that works is invariably found to have evolved from a simple system that worked.
A complex system designed from scratch never works and cannot be patched up to make it work.

HDaji.1 · ‎2025-04-21

@Andrew Neil thanks for your reply.
Maybe this link, http://elm-chan.org/docs/mmc/mmc_e.html, is more relevant.