[Techtoolslist] EPROM Emulator Questions

Phillip Eaton inbox at phillipeaton.com
Fri Jul 19 01:23:37 EDT 2019


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 at 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 at 01D53DAC.12AC7920]
>
>
>
> -----Original Message-----
> From: Techtoolslist <techtoolslist-bounces at flippers.com> On Behalf Of
> Jess Askey
> Sent: Thursday, July 18, 2019 8:40 PM
> To: Technical Tools Mail List <techtoolslist at 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 at askey.org<mailto:jess at askey.org>
>
>
>
>
>
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