Fatman: any experiences with self made Eproms?

[John Simonton]

At 05:09 PM 1/6/98 +0100, Heiko Bajus wrote:
>Hi again!
>
>My Problem is that I don´t know if my EPROM is bad or the circuit contains
>an error. 
>
hi Heiko and all - I had meant to respond to this earlier, but the passing
of my mom over the holidays and minor to major server problems over the
last couple of weeks have made working on things all but impossible :-(

I say again,   :-( in a big way.

In any case, I double checked the fatman code posted on our pages (which
are now back up after winking out completely sometime late Tuesday night).
It is the same code that we presently use to burn PROMs and I downloaded
and burned one just to make sure. It's OK.

The .hex extension on the code files at our site have caused some minor
confusion. I think some had been thinking that these were PROM image files,
but in fact they're Intel format .hex files which also contain things other
than just the PROM data - a check sum, for instance. Most PROM burner
software can handle the Intel .hex files, but there also exist Motorola
format .hex files which are different - these are Intel.

I've added .bin files (PROM images) to the .zip files for the midi2cv8 and
FatMan and these may be more useful for those updating or building from
scratch.

The newest revision of the midi2cv8 code was released to production (in
other words, I burned a bunch and handed them to Mona) Wednesday of this
week. There was an annoying bug in the v2.0 midi2cv8 posted a couple of
weeks ago that we didn't see until we had played with it ourselves for a
couple of days (Can someone tell me why in the world a CZ-1 _doesn't_ use
running status but still sends zero velocity Note-ons instead of Note-offs?
- that's rhetorical actually, but if you have a clue ...). 

V2.01 is the production version of this code and is what's posted now. I've
also added a .wri document that details the new operating modes, which is
as important as the upgrade code itself. We did not use v2.0 in any kits or
for any updates, but if you or someone you know downloaded it you should
get v2.01. This is at www.paia.com/md2cv20.zip .

-John



---------------------------------------------------------
John Simonton                  PAiA Electronics, Inc
3200 Teakwood Ln.              honcho at paia.com
Edmond OK 73013                http://www.paia.com
405-340-6300                   fax 405-340-6378