Eprom programing w/ GM memcal

[David Cooley]

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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David Cooley N5XMT Internet: N5XMT at bellsouth.net
Packet: N5XMT at KQ4LO.#INT.NC.USA.NA T.A.P.R. Member #7068
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