help me get a eprom burner

[discgolfer72]

hey can you send me a copy of your programer software
ill use it to detrmine voltage then use my software to burn

 

[tta583]

DL the software for a Pocket Programmer. It will prob complain about not seeing a programmer when it starts. Choose the chip and see what voltage it fills in.
http://xtronics.com/memory/updates.html

No matter what I program I look it over for a voltage. It may even been stamped on the underside.

 

[RetroHacker]

Here's a download link:

http://web.archive.org/web/20051215075529/http://www.needhams.com/downloads/emp_dist.exe

-Ian

 

[lilman573]

Let me know how the burner works for ya! I have the same one and am having problems. It's probably user error on my part though!

Hey gotti, I have a version 3.5 pcb. Whats the problem? PM me.

Oh yeah, and back to the thread subject. I have always found this website usefull:
http://www.dcllabs.net/docs/eprom.txt

 

[discgolfer72]

nice thanks guys i should be set now with info for proper voltage


i just got done looking over the chips i have
the stupid amd and esqee chips dont show voltages but the few 27c512 intel chips actually do say the voltages

at the rate im fixing and converting boards im going to need to order another programer and like 30 parts boards lol

i just finished download ing the latest full set of misfit mame roms so now its time to have fun with hacks lol

 

[gottifour]

You guys *do* realize that there are different types of 2764, with different programming voltage requirements. Some of them need 21v, others need 12.5. For example, an AMD 2764 needs 21v, but an AMD 2764A needs 12.5. You have to set your burner accordingly.

-Ian

Thanks for the tip as you can see from the pic...it worked.

 

[channelmanic]

If you are working with a chip in which you don't know the programming voltage then simply run it at the lowest voltage and bump it up until it programs.

RJ

 

[discgolfer72]

lol if it dont work beat it till it does lol

now im just waiting on my damn 40 -42 pin adaptor and its time to takle my sucided cps2 board

 

[RetroHacker]

now im just waiting on my damn 40 -42 pin adaptor and its time to takle my sucided cps2 board

Hopefully you got the 16 bit adapter with two ZIF sockets - I think they sell one with only one ZIF and one normal socket, that one would get old real fast...

I don't have a Willem, but I bought one of those 16 bit adapters. I was initially intending to build one from scratch, but when I figured that the cost of the ready-built adapter was only slightly more what the parts cost, I went with the adapter. I made some small modifications and mounted it in a box, so I can connect it up to my old Needham's programmer. Seems to work well, although I've had some issues with 27c160's (and no problems with 27c322's). I think I just got a bad batch of used chips though.

-Ian

 

[discgolfer72]

Hopefully you got the 16 bit adapter with two ZIF sockets - I think they sell one with only one ZIF and one normal socket, that one would get old real fast...

I don't have a Willem, but I bought one of those 16 bit adapters. I was initially intending to build one from scratch, but when I figured that the cost of the ready-built adapter was only slightly more what the parts cost, I went with the adapter. I made some small modifications and mounted it in a box, so I can connect it up to my old Needham's programmer. Seems to work well, although I've had some issues with 27c160's (and no problems with 27c322's). I think I just got a bad batch of used chips though.

-Ian

lol i got a cheap o one for 8$ shipped not even a zif just 2 difrent standard sockets 1 40 1 42

i really just want it so i can fix my cps2 board (or at least attmpt to ) i didnt want to spend the 29$ for the one with the 2 zif sockets and it was the only one on ebay that was located in the us

if i start using it a lot im shure i can snag a zif socket cheap from some hong kong site and solder it in place of the standard socket


gottifour is that on your red tent or a pc 10

 

[gottifour]

If you are working with a chip in which you don't know the programming voltage then simply run it at the lowest voltage and bump it up until it programs.

RJ

Thanks for the tip!

gottifour is that on your red tent or a pc 10

Red tent sir!

 

[Level42]

I'm still sticking by my trusty old Needham's PB-10 though. I love that programmer. Fast, reliable, compatible... I can't say enough good things about it. The software that runs it is so nice and easy to use. And it does all the old chips, and all the way up to 8mbit EPROMs. I've even built my own adapter setup to allow me to do 16 bit wide EPROMs.

-Ian

Hey that Needham name rang a bell with me. Turns out I was given an old Needham EMP-10.
This connects through parallel connector though (I think the PB-10 is an ISA board ?)

What software do you run and where did you get it ? Or was this the original packed software ?
I think I read about the one I have that modern day PC's would be too fast on the parallel port for it to work properly. It would be great if I could get this to run. (I mean, can't beat a free programmer)

 

[RetroHacker]

Needhams is long gone, as is their website. But, thanks to archive.org - it's not forgotten. Here's a link to the latest version of the EMP-10 software:
http://web.archive.org/web/20080208171642/http://www.needhams.com/downloads/emp10arc.exe

I don't know much about the parallel port versions, so I don't know what sort of machine you need to run it. I would imagine though that running under straight DOS would be more reliable. I have my PB-10 installed in a 486 running DOS.

The download page also lists an XP driver for the EMP-10, so I'm not sure what that is for, since the programming software is DOS based.

-Ian

 

[Level42]

Yeah I googled up some more info....thanks for that link !

Now, I gotta dig up a really old notebook that hopefully still has a parallel port.

Mmm, also gotta dig up my 230V to 110V converter, it still has the original US wall wart....

 

[channelmanic]

The download page also lists an XP driver for the EMP-10, so I'm not sure what that is for, since the programming software is DOS based.

-Ian

Probably something similar to this:

http://www.arlabs.com/peppak.zip

Driver description

Driver 1 - USERPORT
Userport.sys is a driver written by Tomas Franzon and can be found in
the public domain. With this driver installed, real mode programs are
permitted direct access to the computers hardware. The version provided
removes restrictions only to the original parallel port addresses. With
this driver installed, a noticable increase in programming system
performance will be noted as WindowsNT, 2000 and XP interference with
port access has been eliminated.

Driver 2 - KBDFIX
KBDFIX is a driver installation program which specifically addresses
a problem which seems to occur primarily on Dell computers running a
recent version of XP Service Pack 2. The problem appears after USERPORT
is installed. Following the installation of USERPORT and the invocation
of the programming system software (PEP.EXE) or one of the batch files,
everything appears to function except the program will not recognize
input from the keyboard (keyboard is dead). KBDFIX should restore
keyboard operation.