[Techtoolslist] EPROM Emulator Questions

[William Stillwell]

Interesting... i like the fact it has a Pi in it, so you could run a
compiler on it, and make test code, and then upload to the sram chip...

Jess's solution is awesome.. super small.. but not sure it would ever be
released..

I did order one of the EEprom Emulators from ebay, i probably should pull
it out and actually play with it haha...


William Stillwell

Board Member - Inspiration labs, Inc. a 501c3 organization

Board Member & Co-Founder - Byte Amusement Group // Free Play Florida
Arcade & Pinball Show a 501c3 organization




On Mon, Oct 14, 2019 at 4:00 PM John Robertson <jrr at flippers.com> wrote:

> One could make an emulator using a Raspberry Pi:
>
> https://www.sbprojects.net/projects/pi-epsim/
>
> All you need is to make a PCB using KiCad or similar.
>
> Pis are pretty cheap, and I suspect you could compress the design onto a
> blob that fits on the UUT socket.
>
> John :-#)#
>
> On 2019/07/19 8:00 a.m., Jess Askey wrote:
> > 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 at 01D53E10.77CC3C50]
> >
> >
> >
> > -----Original Message-----
> > From: Techtoolslist<techtoolslist-bounces at flippers.com>  On Behalf Of
> Phillip Eaton
> > Sent: Thursday, July 18, 2019 11:24 PM
> > To: Technical Tools Mail List<techtoolslist at 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 at askey.org<mailto:
> 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<mailto:
> 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<mailto:
> 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<mailto:
> jess at askey.org%3cmailto:jess at askey.org>>
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