File System on USB Mass Storage Device?

[eng.Buffon]

hi guys

hi everyone

do i need to make PIC18F4550 understand file system (e.g FAT32) in my USB Mass Storage Device as i make it understand MSD Class request in addition to SCSI commands and(Read Sector,Write Sector. ..etc) that deal with MMC.

but do i need to deal with FAT32 on the MMC card or just the computer do it converting it to (Read,Write Sector) commands..??

Note : the MMC is already formatted on FAT32

as the firmware doesn't need to read or write to files on its own,rather than via a USB Host (e.g PC)

[Pat Crowe]

If you don't need to access the file from the PIC, then no.