From: Joe <>
Date: Thu Aug 10 22:05:27 2000

I've missed part of this thread so I may make some wrong assumptions here
but I'll throw in what I know about this stuff.

    DataI/O has both a software PALASM and a hardware PALASM. I have both
of them and the docs for them. They appear to do the same thing and I don't
what the differences are but there probable are some. I just got this stuff
recently and I haven't had time to learn all the details about it. The
software versions are called Abel and the was available in PCDOS, UNIX and
VAX VMS versions. I have the Abel PC DOS version ($895!) The hardware
PALASM is called a PALASM Design Adapter and is PN 303-100 ($395). It's a
unit that plugs into a DataI/O model 29 programmer and the unit with the
socket for the PAL plugs into it. There are a number is different PAL
socket units. Some of them only work with a few PALs but the one that I
have is a DataI/O model 303A-011 and it seems to work with most PALs. I
also have the manuals for it and the model 29 programmer. I also have a
DataI/O UniPak EPROM socket adapter and LogicPak adapter and I THINK I have
the manuals for them. I also have the manual for the 303A-002 P/T adapter
(one of the PAL sockets) but not the hardware. You MUST have the manuals to
use the DataI/O stuff since the manuals contain the codes that you have to
enter into the programmer in order to tell it what kind of device you're
using. I can make copies of what I have for the cost of copying and postage
if anyone needs them.


At 09:11 AM 8/10/00 -0600, Dick wrote:
>Please see embedded renarks below.
>----- Original Message -----
>From: John Honniball <>
>To: <>
>Sent: Thursday, August 10, 2000 4:34 AM
>Subject: Re: Palasm?
>> On Wed, 9 Aug 2000 12:51:23 -0600 Richard Erlacher
>> <> wrote:
>> > A plug in module for PALASM? What would give you that idea?
>> Well, as I recall, that's what written on the module :-)
>> > I've seen only
>> > one place on a model 29 for anything to plug in, and that's the
>> > site. (there are several different ones)
>> That's right, it's a huge plug-in module to go in the
>> programming site socket. It has another plug-in module on
>> top to accept the PALs that are being programmed.
>It's been a while but the site does, in some cases have an optional socket
>adapter for differing packages. Unfortunately this type of adapter was
>needed in some case while other required an etirely different site to
>accomodate a given package, i.e. you might need several site/adapter
>combinations to handle all the different packages in which a given part was
>> > The data was typically fed to the
>> > Model 29 via a serial port, and in JEDEC form. The model 29 translated
>> > jedec file into whatever signals were needed to program the device.
>> As I have no manual, I can't tell how this thing was
>> supposed to work.
>There was software, in my experience, running on a PC, that told the
>programmer what to do, specifically how to drive the device pins and how to
>process the JEDEC file. It also sent the JEDEC file once that was set up,
>but these were separate steps. At the time I seriously began using
>field-programmable logic devices (once price came down) there were
>sufficiently inexpensive programmers from second-rank independent vendors
>that the model 29 was unrealistic for someone not programming in a prduction
>environment and whose needs involved a wide range of devices.
>It's not unusual to see these model 29's at distributors' sites. Perhaps
>one of your local electronic distributors' technicians can help you out.
>The way to do that is to contact someone you know and tell them what you
>want is to find whatever documentation there is on the model 29 and
>examine/copy it. The guy at the will-call counter will probably be more
>helpful than the phone-sales person.
>> > The last time I used a model 29 was in '85. They were already pretty
>> > back then and wouldn't program the then new Altera parts and Lattice
>parts I
>> > was using. That was later fixed, but too late for me. I bought a
>> > that still works . . .
>> I've since acquired a Stag PPZ Universal Programmer.
>> 6809-based machine with built-in CRT.
>> > Is there a feature that plugs in the intelligence to compile Palasm
>> > into the JEDEC? I'd be VERY surprised to learn that.
>> I'll have to pop up into the loft and fetch this thing down
>> for a closer look (info in this e-mail is from memory).
>> I'll post model numbers, etc, in case anybody can identify
>> the module and tell me I've got it all wrong :-)
>> --
>> John Honniball
>> Email:
>> University of the West of England
Received on Thu Aug 10 2000 - 22:05:27 BST

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