[Intel-devsys] Tauntek/Grieb Z80 and 8080 ICEs

Herb Johnson hjohnson at retrotechnology.com
Tue Aug 6 16:57:02 MDT 2019

On 8/6/2019 2:20 PM, Paul Birkel wrote:
> Herb;
> For possible reference:
> https://www.retrobrewcomputers.org/doku.php?id=builderpages:gary_kaufman:z80
> ice
> POC:  Gary Kaufman <gekaufman at gmail.com>

Thanks for the reference. note the link must be a single line when used. 
He does lay out all the problems, which amount to the challenges of 
resurrecting an ever-older small programmed-logic tool; when the parts 
are out of production, the software to support the tools is obsolete. 
I've avoided using such devices except as a buyer of a thing. Other 
people seem to use these devices  and say great things about them. I 
guess they change their tools and parts as needed, to keep up with 

The retrobrewcomputers.org page, is dated "2016/03/09". There's a forum 
where a "gkaufman" posted recently. A search found NO discussion of the 
Z80ICE there. IN a list of boards that are called "available" but 
not-often updated, the project does not appear. In the somewhat related 
google discussion group "s100computers", there's two messages from 2016 
about a list of ten Z80ICE board-buyers by Kaufman in mid 2016 or so. 
Then a Michael Narigon discussed in Oct 2016, "I'll update the design 
with a Atmel CPLD in production". He did something on it in Dec 2016, he 
posts that a board was produced through seeedstudio.com: I found nothing 
there. No "narigon" on the Retrobrew_etc Web page.

"Down the rabbit hole". This group(s) do a lot of interesting things and 
I try to respect their works. But for non-participants like me, diving 
deep to find something leaves me gasping for air when I surface again. 
(shrug) It's hard to know what's persistent.

I will consider removing my Z80ICE Web page from my site. Bob shows off 
his prior product on his own Web site. Thus my page is not needed to 
"support" it.

Regards, Herb

> -----Original Message-----
> From: intel-devsys-bounces at lists.brouhaha.com
> [mailto:intel-devsys-bounces at lists.brouhaha.com] On Behalf Of Herb Johnson
> Sent: Tuesday, August 06, 2019 1:58 PM
> To: Discussion list for Intel development systems
> Subject: [Intel-devsys] Tauntek/Grieb Z80 and 8080 ICEs
> http://www.retrotechnology.com/aux/ice_z80.html
> Someone contacted me today, about obtaining "a Z80 emulator kit" from
> me. (They had the wrong processor for the wrong purpose, but that's not
> why I called here.) They apparently stumbled over my Web page, where in
> 2009 I displayed information about Bob Grieb's Z80ICE device. As many of
> you know, this board interrupts access to the Z80 with a PIC processor,
> to capture events and instructions for hardware/software debugging. 

Herbert R. Johnson, New Jersey in the USA
http://www.retrotechnology.com OR .net
preserve, recover, restore 1970's computing
email: hjohnson AT retrotechnology DOT com
or try later herbjohnson AT retrotechnology DOT info

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