What are the RAM/ROM requirements?
The entire library was written to be efficient with memory more so than speed. So depending on what features you include, and how efficient your C compiler is, code size can vary greatly. Using the HI-TECH C compiler with the PIC18LF2610, code size varies between 6K and 15K, depending on which options are selected. The RAM requirements start at about 100-200 bytes for read-only with no file system. Read/Write should be about 600-800 bytes, minimum. We normally use about 1200 bytes, but this is just to have two 512-byte buffers for faster file copies. Q: Does the SFCLIB support long file names? A: We do not currently support long filenames, but we do think it would be a valuable feature, along with subdirectory support. (The down side of using long file names and FAT32 is, if Microsoft has its way, you will have to pay them a royaltyfor every product you sell that uses it. for more information look at: http://en.wikipedia.org/wiki/FAT_file_system Scroll down to the section on Fat Licens
