RE: The Age Old - "What Eprom Programmer should Iget"question

Hi Matt,

What result do you get when you try to read a truly 'blank' Eprom
(otherwise known as nothing in the test socket)? Perhaps that will
give you a clue...

John :-#)#

At 8:54 PM -0800 11/7/05, Matt Rossiter wrote:
>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@flippers.com
>[mailto:techtoolslist-bounces@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@flippers.com
>[mailto:techtoolslist-bounces@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>http://www.needhams.com/products-emp11.html
>or maybe something that uses USB instead of parallel.
>
>What do you guys recommend?
>
>Thanks
>
>Matt
>
>
>

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Received on Tue Nov 8 01:47:58 2005