FYI, I can't see any of these images. They just show as '[cid:image002.jpg@01D53E10.77CC3C50]' in the body. -----Original Message----- From: techtoolslist-request@flippers.com Sent: Friday, July 19, 2019 11:00 AM To: techtoolslist@flippers.com Subject: Techtoolslist Digest, Vol 181, Issue 5 Send Techtoolslist mailing list submissions to techtoolslist@flippers.com To subscribe or unsubscribe via the World Wide Web, visit https://pairlist7.pair.net/mailman/listinfo/techtoolslist or, via email, send a message with subject or body 'help' to techtoolslist-request@flippers.com You can reach the person managing the list at techtoolslist-owner@flippers.com When replying, please edit your Subject line so it is more specific than "Re: Contents of Techtoolslist digest..." Today's Topics: 1. Re: EPROM Emulator Questions (Jess Askey) ---------------------------------------------------------------------- Message: 1 Date: Fri, 19 Jul 2019 15:00:54 +0000 From: Jess Askey <jess@askey.org> To: Technical Tools Mail List <techtoolslist@flippers.com> Subject: Re: [Techtoolslist] EPROM Emulator Questions Message-ID: <CY4PR08MB243716D3644B04DAEB00212EC4CB0@CY4PR08MB2437.namprd08.prod.outlook.com> Content-Type: text/plain; charset="utf-8" My vision is that I could have 8 of them plugged into all the EPROM sockets on a board like this.. ? Then I can live debug! [cid:image002.jpg@01D53E10.77CC3C50] -----Original Message----- From: Techtoolslist <techtoolslist-bounces@flippers.com> On Behalf Of Phillip Eaton Sent: Thursday, July 18, 2019 11:24 PM To: Technical Tools Mail List <techtoolslist@flippers.com> Subject: Re: [Techtoolslist] EPROM Emulator Questions We had something very similar at my company in the 90s, it was a bit smaller black grey potted block with an rs232 cable sticking out. Compared with the Dataman S3 and S4 we had, it was just as fast to use for emulation and much cheaper. I'd probably buy one if they were available again at the right price, but I don't have the capacity/capability to help create one unfortunately. On Fri, 19 Jul 2019, 05:03 Jess Askey, <jess@askey.org<mailto:jess@askey.org>> wrote:
Here is a picture of it and the innards... there is an older CPLD on
the other side of the PCB and it looks like it just writes the binary
content to the RAM (shown) and then it runs free with the ability to
monitor what is going on. The software supports the standard 24/28/32
pin configurations so you can make it work in anything from a 2716 up
to like a 27C010. I tried to get ahold of John Olsen who ran Itasca
(according to my instruction pamphlet) but he is no where to be found.
It's not terribly complicated. The plastic body is cheaply available.
[cid:image001.png@01D53DAC.12AC7920]
-----Original Message-----
From: Techtoolslist <techtoolslist-bounces@flippers.com<mailto:techtoolslist-bounces@flippers.com>> On Behalf Of
Jess Askey
Sent: Thursday, July 18, 2019 8:40 PM
To: Technical Tools Mail List <techtoolslist@flippers.com<mailto:techtoolslist@flippers.com>>
Subject: [Techtoolslist] EPROM Emulator Questions
John's AdCOM question got me thinking a little bit....
So I have an old Itasca Systems NoROM Eprom emulator, it is sorta a
genius little device because it is literally a small black 'Extended 32-Pin DIP'
and it only sticks up about 1.5 Inches. It has a Serial Port built in
with an RJ-12 (6/8Pin?) so the cable is lightweight. They stopped
making it in
2000 or so and I really just want to make more of them (functionally).
Some improvements would be...
1. Switch to USB + daisy chain so you can literally have dozens of
these on a PCB if really needed.
2. An improved interface for sending data to the device(s) 3. Nice in
place debugging and sniffing
Anyone interested in working on a project like this with me? I can do
the software side but Im not really there on the FPGA end. I have good
details on the packaging of the ITASCA one and I can post pics if you
want. They no longer make it or are in existence so I don't want to
duplicate it per se, just build something with core functionality in the same form factor.
Email me if interested.... jess@askey.org<mailto:jess@askey.org<mailto:jess@askey.org%3cmailto:jess@askey.org>>
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