[ECOS] Re: NAND support

John Dallaway john@dallaway.org.uk
Tue May 5 11:26:00 GMT 2009

Hi Simon

Simon Kallweit wrote:

>> I assume that your port would sit under the standard eCos Flash I/O
>> layer (CYGPKG_IO_FLASH). As with all imported packages, it would also be
>> important to:
> UFFS is not yet great for NOR flash, as every file/directory uses at
> least a complete block. That's why I was asking for the NAND package.
> The port could support both NOR and NAND flash, but until UFFS is
> upgraded to handle NOR better, it's quite useless in production.

Yes, I see now. UFFS would be implemented as an eCos file system exposed
via CYGPKG_IO_FILEIO, talking to a separate NAND flash layer via

John Dallaway

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