Eprom programing w/ GM memcal

[James Wilson]

David,

Thanks for the info. I will check with the bone yards.

                                  Jim Wilson


-----Original Message-----
From: David Cooley <n5xmt at bellsouth.net>
To: gmecm at efi332.eng.ohio-state.edu <gmecm at efi332.eng.ohio-state.edu>
Date: Thursday, November 04, 1999 12:56 PM
Subject: Re: Eprom programing w/ GM memcal


At 12:30 PM 11/4/1999 -0800, you wrote:
>Hi Guys,
>
>Can someone tell me the procedure for programing a 27C256 Eprom (28 Pin)
>soldered inside the GM memcal (ECM #16159278). I think I would need an
>adaptor that you could plug the 66 pin socket  into with a 28 pin to plug
>into the programmer. Is something like that available? Also is there
another
>source (besides GM) for the memcal Eprom combination, I would like to have
a
>spare for future programming.
>
>

First you need to have access to the window on the top of the EPROM chip
for erasing the EPROM.
Then, just an adapter from the 66 pin header to the 28 pin socket... It
will have to be homemade as there isn't anything commercial available.  As
far as picking up a spare, check with the bone yards... Probably get one
for 5 bucks instead of the $40-$50 the dealer wants.

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