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Lpc2000

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Message

RE: [lpc2000] Re: Cheap SD Flash File System

2005-11-10 by Paul Curtis

Hi Bill, 

> A pretty good, open-source, no-pay FAT layer is available at 
> <http://alumnus.caltech.edu/~pje/rdcf2.txt>.  The 
> implementation there is limited to FAT16 but can be extended 
> and has a lot of nice features.

FAT12 is more complex than FAT16 when dealing with FAT 12-bit FAT
entries that span a sector.  A lot of SD cards are formatted FAT12 by
default, so FAT16 is no good...  Its requirements are also pretty high,
requiring a 1K static buffer.  The PRLLC implementation (and mine for
that matter) can run with a 512-byte static or dynamic buffer.

I'll take a look at this.  It's something that I didn't find using
Google, which is why I wrote my own implementation that is now part of
NetBASIC.

Regards,

--
Paul Curtis, Rowley Associates Ltd  http://www.rowley.co.uk
CrossWorks for MSP430, ARM, AVR and now MAXQ processors

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