STM32+FAT+RAM disc

Posted on May 17, 2011 at 13:09

To accomplish this, one can simply use DosFS and instead of remapping the ''DosFS_Read/Write'' to ''SDIO_Read/SDWrite'', just use any function you have to interface to your external memory (FSMC?).

You probably understand that the only advantage of FAT(16/32) is portability to Windows machines? If you want to read or write data to ram, in an organised way, why not use a simple table like:

[FileNumber, PartNumber, AdressStart, AdressStop]

Where you can write to a large buffer, update the file end. If you are writting to an older file, then you can use the part number to implement a fragmentation management.

Hope this helps.

-Relaxe

Posted on May 17, 2011 at 13:09

Hi everyone!

Maybe someone did a project where there was support for FAT with a RAM (RAM disc)? I mean not memory cards (SD, MMC).