Think it would work with the GM eproms??



Here is the link to the site below....

http://www.wedzboyz.co.uk/wedzboyz/eprom/index.html

 

It says it does.. so I don't see why it woudlnt.

 

yea it works I built it.

 

Hmm too bad none of the blowup links work.

------------------
Mark Lock
- 86 IROC-Z - SuperRammed 383/T56
- -= IROC Online =- - The site dedicated to the IROC-Z

 

here is a link where they work

http://home.quicknet.com.au/andrewm/eprom1/

 

Thanks Dextron.

I figured if someone was interested in it, they could download the eprom.zip file and get all the info they needed.

 

Just for clarification purposes... It will program the 2732A eprom, Correct? Just wanted to make sure. It dosn't list it on the web page and the zip file isn't down downloading yet.

Thanks,
Lars

 

Here's one I found a while back that will probably do pretty well for most people. It's simple, easy to make and has instructions to modify it to use with the 2732 (which some of us use for the '7747 and other ECM's.)

DIY Eprom Burner

Best of all, it works off the parallel port, which everyone has and is the preferred method since laptops don't have slots for internal cards.

Ken

 

Just have to watch the Programming Voltage..

 

Input can be 14-16VDC it has voltage regulators that kepp programming voltage @ 12.5VDC

 

Yeah theres a trimpot on the PCB to adjust VPP, but why couldn't you substitute that pot for a fixed resistor? If the tolerance on the vregs is good, you should be able to have a consistent 12.5V VPP, right? Or you can adjust it w/ a DMM everytime you program, PITA.

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-Jason M. 1991 Camaro Z28

 

Once you set the trim pot, it shouldn't have to be readjusted. I'm sure that Vpp has a tolerance.

 

The programming voltage from the 2732s can vary from 12.5 to 24v. Depends if a A-B-C series of eprom.

 

Yes, but VPP can't exceed the input voltage. That trimpot is probably a fine adjustment from a 7815 vreg. I couldn't see programming at a higher voltage without altering the power supply. Not that it would be a problem to up the VPP a few volts. Cool circuit, I like it.

------------------
-Jason M. 1991 Camaro Z28

 

Hey all. Just to make sure, the only difference between the 2732/A/B chips is the Vpp signal voltage? So then all 3 are programmed as 2732's, only with the necessary Vpp applied, right? I'm in the process of building one of the DIY reader/burners with mods for hopefully all 27xx chips, so anyone with the Vpp votages necessary for each type PLEASE let me know!! I'll get schematics uploaded ASAP unless I have to tweak the software first. Thanx

 

2732 Vpp - 25v
2372A Vpp - 21v
2732B Vpp - 12.5v

Dunno what the 27C32 Vpp is. Most people from what I know just stick with the 2732A. Jameco has them pretty cheap, around $4 a pop or less in quantities of 10.

Ken