[Techtoolslist] The Age Old - "What Eprom Programmer should Iget"question

[Matt Rossiter]

I just bought the Willem Eprom Programmer.  I am hoping someone can help me
out with a couple of easy questions about setup.  I think the version I have
is called "PCB3".  I think this one has added support for earlier eproms
like 2716 and 2732.

 

Let's say I just want to do a simple blank check on a 2716 eprom.

 

Step 1:  Verify that it's blank on my Data I/O just to make sure.  - Ok it's
definitely blank.

Step2:  Connect the Willems eprom programmer to my computer using the
Parallel port.    Ok.  All the lights are on and look good.

Step3:  Bring up the Software.  Click  Device -> EPROM -> 27XX ->  2716 - Ok

Step4: Click the button that says "Willem"  so that it changes to PCB3
(since that's the board I'm using) - OK

Step5: Set the Jumper switches according to the diagram in the software - Ok

Step6: Put in the chip and click "Blank Check"

 

Am I missing any steps?  I keep getting "Device not Empty"

 

Furthermore if I read the eprom, store the data to a binary file and try to
verify it with Romident it fails.

 

Or if I load an eprom from a file and then compare it with a rom with the
same code it fails.  I've tried this with 2716, 2732, 27c4001 and 27c010.

So I think I must be doing something wrong.

 

Could someone offer me some help?  

 

Thanks!

 

Matt

 

  _____  

From: techtoolslist-bounces at flippers.com
[mailto:techtoolslist-bounces at flippers.com] On Behalf Of Bill Karkula
Sent: Saturday, October 29, 2005 5:50 PM
To: Technical Tools Mail List
Subject: RE: [Techtoolslist] The Age Old - "What Eprom Programmer should
Iget"question

 

I kept my workhorse Data I/O and bought one of those enhanced Willem
programmers on ebay.  Mine cost less than $70 when I bought it over a year
ago.  Works great on those larger eproms - I only use the Willem when the
Data I/O is incapable of programming the device.  I have an old 100Mhz
Pentium laptop connected to my data I/o and to the willem and between the
two programmers I am covered.

 

Best Regards,

 

Bill

-----Original Message-----
From: techtoolslist-bounces at flippers.com
[mailto:techtoolslist-bounces at flippers.com]On Behalf Of Matt Rossiter
Sent: Saturday, October 29, 2005 7:43 PM
To: 'Technical Tools Mail List'
Subject: [Techtoolslist] The Age Old - "What Eprom Programmer should I
get"question

I've been happy with my Data I/O 29b programmer for a long time.  I
especially like it because it does all the 82S proms that I need.

Lately I've had a number of people asking me to program some of the 27C4000
and 27C010 series eproms.  I don't have the pinout cartridge to do those and
I'm not sure if I feel like hunting one down.

Even though I fix games on the side for fun and a little side cash, I'd like
to get a nice eprom programmer (to program the newer, bigger eproms) - but
not pay $Big Bucks$ for one.

 

I don't want to spend much more than $350 for one so I was thinking of maybe
the Needhams EMP-11 http://www.needhams.com/products-emp11.html or maybe
something that uses USB instead of parallel.

 

What do you guys recommend?

 

Thanks

 

Matt

 

 

 

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://seven.pairlist.net/pipermail/techtoolslist/attachments/20051107/5c8ea474/attachment.html>