4 Jul
2000
4 Jul
'00
2:45 p.m.
The truth is, there's quite a bit one could learn
from the Catweasel. I'm
not particularly interested, however, since the REAL problem is inherently
solved with Tim's sample-buffer circuit, and would be completely solved,
i.e. write capable with just a bit more hardware and quite a bit of
software.
Unless it's proven that the Catweasel does
everything an expanded version of
Tim's sampler/buffer board potentially does, it's not a real solution.
My point was that the Catweasel hardware has identical capabilities to
Tim's, plus the write capability that Tim hasn't added yet. I'm not sure
what "proof" of this you're looking for. Working software? (Available,
though more should be written to handle more formats.) The documentation
for the programming interface? (Available.) A look at the schematic
to convince yourself the design is correct? (Not available, unfortunately,
but I don't really see the need for it.)
I don't see an advantage in using the odd
frequencies on the Catweasel, but there probably is one. I just don't see
it today.
The only reason for the odd clock rate is that it let the designer use
a cheap and readily available 28.322 MHz crystal (divided by 2 or 4).
Tim Mann tim.mann(a)compaq.com http://www.tim-mann.org
Compaq Computer Corporation, Systems Research Center, Palo Alto, CA