Re: Prom Burner & EEPROM's

["Mike" <kswayze@bellsouth.net>]

what i was thinking was to (hopefully) put the chip in with the extra space
(and circuitry) to flash the chip without removing it.(it would be
understood that the car would be off.((maybe i don't understand enough about
how these chips work)))

byE
Mike
----- Original Message -----
From: "Ludis Langens" <ludis@cruzers.com>
To: <gmecm@diy-efi.org>
Sent: Wednesday, September 06, 2000 2:20 AM
Subject: Re: Prom Burner & EEPROM's


> Mike wrote:
> >
> > could the following circuit be used as an eprom simulator, possibly
> > emulator?
> > http://www.students.tut.fi/~leinone3/c64fprog.gif
>
> Huh?  That appears to be just a memory card for an old C64 computer.  I
> don't see how it is applicable to an ECM.  Perhaps if you had one of
> these cards, you could pull the chips off and reuse them in an ECM.
>
> I think the intent of using EEPROMs was to skip the erase step.  With
> EPROMs, the cycle is:
>   Programmer
>   ECM
>   Eraser
>   Programmer
>   ECM
>   ...
>
> With EEPROMs, it would be shortened to this:
>   Programmer
>   ECM
>   Programmer
>   ECM
>   ...
>
> --
> Ludis Langens                               ludis (at) cruzers (dot) com
> Mac, Fiero, & engine controller goodies:  http://www.cruzers.com/~ludis/
>
>
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