Tony Duell wrote:
Holy cow, I think you've just found something
that a Data I/O
UniSite won't handle. That's, umm, really unusual. (1702s
How about the IMP-16 CROMs? Again, I think it takes a separate rig
to read those.
Or the HP512*8 or 256*16 masked ROMS that were used in the 9800
calculators and HP instruemtns of the early-mid 1970s (there's one in the
59309 digial clock for the HPIB state machine). Theyr'e mostly TTL
compatible, but have enalbe inputs you have to take to +12V, and need a
-2V bias supply.
My experience is that programemrs will only 'officially' read the devices
thay can program, which of course excludes masked ROMs. If a masekd ROM
can be read as some programamble device (say a 2316 which cna be red a a
2716, etc), then the prgorammer will read them. But if there never was a
user-prgoramamble version (as in the case of the above devices), then
it's unlikely that a programmer will be set up to read them.
I have an early Xeltek SuperPro (had the special PC card) and at the
time bought also their Algorithym Generator program that they were
letting out at the time - and is no longer available as far as I know
(but haven't asked). This program would enable you to set up the
SuperPro to read or write to any device, up to 40 pins, that would match
the programmable parameters of the old SuperPro - which had a number of
pins that it could designate as various Vcc voltages, and others that
could be clock, etc.
Each pin was not completely programable, but I was able to read 6530s on
the device (which is now in storage), and thinking about it, it may be
time to see if the programming program works with any of their later
Superpros...hmm...ANOTHER project. However this one looks like fun!
In case anyone needs it, I do have the ability to both read and write
1702s - I have two burners for that. One is from Andromeda Research -
that can only read 1702s (handy for archiving). The other is a Pro-Log
with the 1702 module, this worked the last time I fired it up - a few
years ago - for a customer.
John's Jukes Ltd. 2343 Main St., Vancouver, BC, Canada V5T 3C9
Call (604)872-5757 or Fax 872-2010 (Pinballs, Jukes, VideoGames)
"Old pinballers never die, they just flip out"