# EPROMs - Need good, low cost device to program

M

#### Mark

Jan 1, 1970
0
I would like to program the 27c256 chip (29c256 would actually be
preferred).

1. Are there good, low cost devices to program this chip?

2. Also, are there any good, low cost chip emulators for this 28-pin DIP?

3. Are there any good internet sites for information?

Thanks,

Mark

D

#### Dr. Anton T. Squeegee

Jan 1, 1970
0
I would like to program the 27c256 chip (29c256 would actually be
preferred).

1. Are there good, low cost devices to program this chip?

"Good" (depending on your definition) and "low cost" are very
often exclusive. A device programmer is an investment, like any other
quality tool, and should be treated as such.

crap that'll fry more chips than it programs. Be willing and ready to
shell out the $$for a decent programmer. Now, with that said... Try searching Greed-bay with this link: http://search.ebay.com/Device-Programmer_W0QQfkrZ1QQfromZR8 It'll turn up a number of choices. The kicker is that you need to be careful what you buy, because many programmers are either difficult to support (in terms of hard-to-get control software) or hideously expensive to support (in terms of Data I/O units). Do your homework -- Pick one that looks interesting, and contact the unit's manufacturer. See what it'll cost to run the thing before you buy. If you're looking for 'cheap,' and your computer has an available ISA slot and can run basic MS-DOS, you may want to consider Ebay item # 7518303890. This is an older programmer, and it is limited in what it can do, but it should work well enough for your application and it's got a very low (3.58) current bid. Happy hunting. -- Dr. Anton T. Squeegee, Director, Dutch Surrealist Plumbing Institute. (Known to some as Bruce Lane, ARS KC7GR, kyrrin (a/t) bluefeathertech[d=o=t]calm -- www.bluefeathertech.com "If Salvador Dali had owned a computer, would it have been equipped with surreal ports?" C #### colin Jan 1, 1970 0 Mark said: I would like to program the 27c256 chip (29c256 would actually be preferred). 1. Are there good, low cost devices to program this chip? 2. Also, are there any good, low cost chip emulators for this 28-pin DIP? 3. Are there any good internet sites for information? I was looking on ebay just now for something that would program a variety of devices, eprom, flash, programable logic, micro controlers etc theres so many to choose from I get brain fade, what to go for, something cheap that program a limited range or an expensive one that does almost every thing, i supose if you go for cheap one if it doesnt do a device you need you can aford to buy another cheap one that does ... theres a very big diference in prices. Colin =^.^= J #### John Fields Jan 1, 1970 0 I would like to program the 27c256 chip (29c256 would actually be preferred). 1. Are there good, low cost devices to program this chip? 2. Also, are there any good, low cost chip emulators for this 28-pin DIP? 3. Are there any good internet sites for information? --- Ive got one of these that I bought somewhen between five and ten years ago. I run it on an old DOS box, I've never had a bit of trouble with it and it's been worth every penny. http://www.eetools.com/product_rommax.asp M #### Mark Jan 1, 1970 0 The ebay item you mentioned does not program 2732 since it doesn't include a needed adapter, so I wouldn't think it would program a 27256 chip, is this true? I have checked Ebay and searched on Google. I only want something compatible with Windows XP so I can use my most advanced computer. The reaons for my post is that I thought someone here would have experience in using such a device and have some tips on selecting a specific device capable of programming a 27c256 chip.. I can't tell from the descriptions if they will likely fry the chips or difficult to program. Is there something I'm missing when I read the descriptions? It seems that Batronix and Willems have 2 of the least expensive devices with software and can program the 27c256 chip.. Which one of the above is better? Are there any other devices with acceptable software? Thanks again, Mark Dr. Anton T. Squeegee said: I would like to program the 27c256 chip (29c256 would actually be preferred). 1. Are there good, low cost devices to program this chip? "Good" (depending on your definition) and "low cost" are very often exclusive. A device programmer is an investment, like any other quality tool, and should be treated as such. In short: Don't cheat yourself by buying a poorly-made piece of crap that'll fry more chips than it programs. Be willing and ready to shell out the$$ for a decent programmer.

Now, with that said... Try searching Greed-bay with this link:

http://search.ebay.com/Device-Programmer_W0QQfkrZ1QQfromZR8

It'll turn up a number of choices. The kicker is that you need to
be careful what you buy, because many programmers are either difficult
to support (in terms of hard-to-get control software) or hideously
expensive to support (in terms of Data I/O units).

Do your homework -- Pick one that looks interesting, and contact
the unit's manufacturer. See what it'll cost to run the thing before you

If you're looking for 'cheap,' and your computer has an available
ISA slot and can run basic MS-DOS, you may want to consider Ebay item #
7518303890. This is an older programmer, and it is limited in what it
can do, but it should work well enough for your application and it's got
a very low ($3.58) current bid. Happy hunting. -- Dr. Anton T. Squeegee, Director, Dutch Surrealist Plumbing Institute. (Known to some as Bruce Lane, ARS KC7GR, kyrrin (a/t) bluefeathertech[d=o=t]calm -- www.bluefeathertech.com "If Salvador Dali had owned a computer, would it have been equipped with surreal ports?" M #### Michael A. Terrell Jan 1, 1970 0 Mark said: The ebay item you mentioned does not program 2732 since it doesn't include a needed adapter, so I wouldn't think it would program a 27256 chip, is this true? I have checked Ebay and searched on Google. I only want something compatible with Windows XP so I can use my most advanced computer. The reaons for my post is that I thought someone here would have experience in using such a device and have some tips on selecting a specific device capable of programming a 27c256 chip.. I can't tell from the descriptions if they will likely fry the chips or difficult to program. Is there something I'm missing when I read the descriptions? It seems that Batronix and Willems have 2 of the least expensive devices with software and can program the 27c256 chip.. Which one of the above is better? Are there any other devices with acceptable software? Thanks again, Mark http://www.needhams.com/products-EMP11.html is in the$300 range, but
it will program anything you're likely to need in the way of memory, and
some processors. I used the older EMP-20 for several years in a
manufacturing environment. This may be more than you want to spend, but
its worth taking a look at what it can do.

R

#### Rich Webb

Jan 1, 1970
0
http://www.needhams.com/products-EMP11.html is in the \$300 range, but
it will program anything you're likely to need in the way of memory, and
some processors. I used the older EMP-20 for several years in a
manufacturing environment. This may be more than you want to spend, but
its worth taking a look at what it can do.

Another endorsement here for the EMP11. I picked one up a few years ago
as a "personal" programmer for home and, occasionally, my desk at work
to complement the EMP-20 and Data I/O programmers there.

It did fail in use a year or so back. We popped it open and it appears
that it was killed by one of the bad electrolytic caps that was making
the rounds a few years ago. Although it was out of warranty, Needhams

The only caveat is that it's a parallel port device and that interface
is slowly disappearing.

M

#### Michael A. Terrell

Jan 1, 1970
0
Rich said:
Another endorsement here for the EMP11. I picked one up a few years ago
as a "personal" programmer for home and, occasionally, my desk at work
to complement the EMP-20 and Data I/O programmers there.

It did fail in use a year or so back. We popped it open and it appears
that it was killed by one of the bad electrolytic caps that was making
the rounds a few years ago. Although it was out of warranty, Needhams

The only caveat is that it's a parallel port device and that interface
is slowly disappearing.

That's why I keep a few old machines around, just in case. I think
that there are USB to parallel adapters that are transparent enough to
let you use most older programs if your computer doesn't have a printer
port. The one on my bench at Microdyne had three printer ports and four
serial ports because I had to do ISP on several families of chips plus
the EMP-20 for socketed parts. All the images were stored on the
engineering server so I created a HTML document to open the right file
for each rev number.

I think they need to start building programmers with an Ethernet
interface. Use something like the Rabbit prototype board and build the
programmer around it. I wonder if any of the software for DIY
programmers has the source code available to convert it to Ethernet or
USB?

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