DIY Eprom reader/burner
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DIY Eprom reader/burner
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
![](http://www.wedzboyz.co.uk/wedzboyz/eprom/eprogs.jpg)
Here is the link to the site below....
http://www.wedzboyz.co.uk/wedzboyz/eprom/index.html
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Car: 86 IROC-Z
Engine: Superramed 355 w/ intercooled T72
Transmission: T56 -=- www.iroc-ss.com
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
------------------
Mark Lock
- 86 IROC-Z - SuperRammed 383/T56
- -= IROC Online =- - The site dedicated to the IROC-Z
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Car: '92 RS
Engine: In pieces
Transmission: Built 4L60
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
Thanks,
Lars
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Car: 82 Corvette
Engine: 350 CrossFire
Transmission: 700R4
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
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
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Car: An Ol Buick
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Transmission: Janis Tranny Yank Converter
<font face="Verdana, Arial" size="2">Originally posted by Dextron:
here is a link where they work
http://home.quicknet.com.au/andrewm/eprom1/</font>
here is a link where they work
http://home.quicknet.com.au/andrewm/eprom1/</font>
#11
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
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-Jason M. 1991 Camaro Z28
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Car: An Ol Buick
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<font face="Verdana, Arial" size="2">Originally posted by a73camaro:
Once you set the trim pot, it shouldn't have to be readjusted. I'm sure that Vpp has a tolerance.</font>
Once you set the trim pot, it shouldn't have to be readjusted. I'm sure that Vpp has a tolerance.</font>
#14
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.
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-Jason M. 1991 Camaro Z28
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-Jason M. 1991 Camaro Z28
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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
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Car: 82 Corvette
Engine: 350 CrossFire
Transmission: 700R4
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
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
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