On Wed, Dec 02, 1998 at 05:55:08PM -0600, Oliver Xymoron wrote:
> Define leveling, please. Write caching a flash page at a time should be
> easy and the upper levels of the file system already support quite a bit
> of caching. This is probably easy. Programming the stick and booting will
> be a little harder. Hopefully it already has a serial bootstrapping
> routine of some sort.
The problem with flash is that you can change ones to zeroes one bit at a
time, but changing them back is a big pain. Unless you use a custom
designed filesystem especially for flash use, you need to buffer entire
sectors of flash (64k each, and you usually need two) in memory. With 2MB
of ram, that gets kind of tight...
Read-only flash is good though, and doesn't waste much memory at all.
Have fun,
Avery
