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FreeRTS file system and stdio lib

Posted by rasty1 on July 15, 2016

Hi I'm tryng to port a library that uses file io intrerface from stdlib (fopen/fclose and so on) Surprisingly everything compiles and links, but I guess leads to nowhere in embedded system Is there any idea how to connect between stdio lib file operations and freertos file system?

Best regards Rasty

FreeRTS file system and stdio lib

Posted by rtel on July 16, 2016

If I understand you correctly, you want to call standard file IO functions, but have them map to the FreeRTOS+FAT versions. If that is correct I guess you could just create a header file with the mappings. The FreeRTOS+FAT versions append ff_ to the start of the function names, so this would look something like:

#define fopen( file, mode ) ff_open( file, mode )

and so on for any function you need to use. Also FreeRTOS+FAT uses a header file called ffstdio.h rather than stdio.h, so you might need to have an stdio.h that itself just includes ffstdio.h.

FreeRTS file system and stdio lib

Posted by rasty1 on July 16, 2016

It sounds very simple. Thanks

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