Hello does any one know what this programmer is for?
Announcement
Collapse
No announcement yet.
Old programmer
Collapse
X
-
Re: Old programmer
Some info after a bit of googling
http://www.retrotechnology.com/herbs_stuff/testeq.html
"I have a InLab Inc. model 28A Universal Progammer. It's a PROM and PAL programmer from about 1989. I got manuals and software, but no power supply for it. The power supply is a wall-wart of some sort with a DB-9 female connector to the programmer. Anyone who needs, or has, information on this MOdel 28 or 28A programmer - please contact me! "
EDIT: https://avaluer.com/to/7186839-inlab...e__manuel.htmlLast edited by SMDFlea; 12-15-2019, 06:14 AM.
-
Re: Old programmer
try here - this guy has a lot of programmer info
http://matthieu.benoit.free.fr/tech.htm
Comment
-
Re: Old programmer
Yep, as stj says, I sure could have used one a year ago right before Christmas.
In the end I had to wire up a crazy contraption on a breadboard that got me through it.
I actually found a picture of it and attached it here for your amusement.
More details in this eevblog thread, might give you an idea what it is useful for...
https://www.eevblog.com/forum/microc...00/#msg2113300"The one who says it cannot be done should never interrupt the one who is doing it."
Comment
-
Re: Old programmer
Originally posted by stj View Postit's not junk,
old programmers can read and write stuff the modern ones cant - people doing retro-repair use these type of things.
i use 2 old programmers myself - the modern usb junk wont read pal's or old microcontrollers!
Bipolar PROMs are also a challenge for many modern programmers. No doubt the designers figured they are too "old" to bother supporting...
Comment
-
Re: Old programmer
Originally posted by stj View Postthe unisite should only use the 13v trick if it's sure the chip is cmos,
cant you disable the i.d. check?
(Most of the devices that I use now are either FLASH-based or use slushware)
Comment
-
Re: Old programmer
Interesting, thought there was some sort of embargo on GAL/PAL programming algorithms?
I still have a few 22V10/16V8/20V8's and the 20V8s are causing me problems - can't reprogram them. The 22V10 and I think the 16V8s seem okay. These are mostly AMD PALCE20V8 devices that I have trouble with, the Atmel/Lattice devices generally are fine IIRC.
BTW, anyone still have a programmer that will do 1702 EPROMs? 2708s/(TMS2716/TMS2732s)?Last edited by eccerr0r; 12-26-2019, 02:50 AM.
Comment
-
Re: Old programmer
Originally posted by eccerr0r View PostBTW, anyone still have a programmer that will do 1702 EPROMs? 2708s/(TMS2716/TMS2732s)?
The 1702 was a PMOS device and used wacky supply voltages -- both in normal use and when programming (Vpp was something like -45V in contrast with 12-25V for later NMOS & CMOS devices). You likely won't find a (modern) "universal" programmer that can support them.
[I have a small stash of white/gold CERDIPs that I use to maintain legacy devices -- one of my first products used 1702s before riding the wave up to higher capacity devices. For the true history buff, I've also got a couple of WAROMs collecting dust ]
Comment
-
Re: Old programmer
Yeah I figure as much, specifically singled out the 1702 (256x8) 2708 (1Kx8) TMS2716 (2kx8) and TMS2732 (4kx8) because they all need a lot of supply voltages to even run normally, something that "modern" programmers simply won't do. It's a wonder some modern programmers even get the 21V or 25V VPP for "normal" eproms.
The tricky thing is that you'd have to also mod the socket to replace with a standard 2716/2732 too... but perhaps just cutting traces or leaving the pin outside is sufficient, it's been ages since I looked at the TMS2716/TMS2732 chip data, bleah ...
(Oh, no... I was looking at my eprom stash and what did I find? Two TI TMS2716-45s and a MOTOROLA TMS2716C ... why did motorola want to second source braindeadness when they had MCM2716's...
At least I have two TMS2532 single supply units, at least during read.)Last edited by eccerr0r; 12-27-2019, 01:26 AM.
Comment
-
Re: Old programmer
Originally posted by eccerr0r View PostYeah I figure as much, specifically singled out the 1702 (256x8) 2708 (1Kx8) TMS2716 (2kx8) and TMS2732 (4kx8) because they all need a lot of supply voltages to even run normally, something that "modern" programmers simply won't do. It's a wonder some modern programmers even get the 21V or 25V VPP for "normal" eproms.
[When was the last time you saw a 7603?]
The tricky thing is that you'd have to also mod the socket to replace with a standard 2716/2732 too... but perhaps just cutting traces or leaving the pin outside is sufficient, it's been ages since I looked at the TMS2716/TMS2732 chip data, bleah ...
(Oh, no... I was looking at my eprom stash and what did I find? Two TI TMS2716-45s and a MOTOROLA TMS2716C ... why did motorola want to second source braindeadness when they had MCM2716's...
At least I have two TMS2532 single supply units, at least during read.)
Note that you can emulate 2732's by deadbugging 2716's. The beauty of the 27xx pinout was that you could design to support successor devices without making many changes to the site's layout. (which is why TI's parts were so annoying!)
Comment
-
Re: Old programmer
Originally posted by eccerr0r View PostInteresting, thought there was some sort of embargo on GAL/PAL programming algorithms?
I still have a few 22V10/16V8/20V8's and the 20V8s are causing me problems - can't reprogram them. The 22V10 and I think the 16V8s seem okay. These are mostly AMD PALCE20V8 devices that I have trouble with, the Atmel/Lattice devices generally are fine IIRC.
(Bargain from someone who didn't really what to bother with LPT port)
Comment
-
Re: Old programmer
Originally posted by eccerr0r View PostI have a few 74S287s lying around somewhere... now where can I get a programmer for these
Comment
Comment