FreeRTOS+FAT is still in the lab
FreeRTOS+FAT is already in use in commercial products
and we encourage you to try it yourself. Be aware however that
FreeRTOS+FAT was acquired by Real Time Engineers Ltd., and is
still being documented and updated to
ensure it meets our strict quality standards.
Please use the forum for support,
or contact us directly if you have a specific business interest.
File related functions in the standard C library often return 0 for pass,
and -1 for fail. If -1 is returned then the reason for the failure is
stored in a variable called errno, which must be inspected separately.
FreeRTOS+FAT's standard stdio style interface maintains an errno variable
for each RTOS task. A task can retrieve its errno value by calling
ff_errno(). The values returned by ff_errno()
are defined below.