[Techtoolslist] Techtoolslist Digest, Vol 181, Issue 5

Fri Jul 19 11:06:20 EDT 2019

FYI, I can't see any of these images. They just show as 
'[cid:image002.jpg at 01D53E10.77CC3C50]' in the body.

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Subject: Techtoolslist Digest, Vol 181, Issue 5

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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 at askey.org>
To: Technical Tools Mail List <techtoolslist at flippers.com>
Subject: Re: [Techtoolslist] EPROM Emulator Questions
Message-ID:
<CY4PR08MB243716D3644B04DAEB00212EC4CB0 at 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 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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