Re: Selectable chips & boost programming

["nacelp" <nacelp@bright.net>]

OK, me 2,349 to.  Or I got a scanner and can relay it to Steve R to get it
posted so we all can play.
Grumpy
   87 GN, almost stock, Bassett Wheels, and it is an E Coupon ride
   Mr Vader, your ride is ready............



----- Original Message -----
From: <cwagner@info2000.net>
To: <gmecm@diy-efi.org>
Sent: Friday, February 25, 2000 4:27 PM
Subject: Re: Selectable chips & boost programming


> I would like a copy too.
>
>
> On 25 Feb 00, at 15:47, Keith wrote:
>
> > can you send it my way too. I'd like to make one also..
> > Thanks
> > Keith
> >
> > Programmer wrote:
> > >
> > > Hmmm...guess I'll have to do a schematic and send it your way and see
if
> > > I've got it right <g>...
> > >
> > > Thanks !!
> > >
> > > LW
> > >
> > > >Don't have anything in hardcopy, but it used a 27C128 chip stock, so
I used
> > > >a 27C010, mapped all the similar address, Data, power and control
lines to
> > > >a 28 pin plug so the plug looked like a 27128 to the ECM. Took the 3
> > > >additional address lines and ran them to a BCD thumbwheel switch, and
the
> > > >Thumbwheel switch I believe grounded the lines when they were active
(I
> > > >could have that backwards...) and used pull-up resistors on the lines
to
> > > >the switch. I loaded a program into the burner, set the switch on the
> > > >number I wanted that program to be in the chip, and burned it, loaded
the
> > > >next bin, set the switch to where it was supposed to be and burned
it, etc.
> > > >You could switch programs on the fly without a hiccup out of the
engine
> > > >(unless you were screaming and selected valet or security mode!).
Worked
> > > great!
> > > >
> > > >
> > > >===========================================================
> > > >David Cooley N5XMT Internet: N5XMT@bellsouth.net
> > > >Packet: N5XMT@KQ4LO.#INT.NC.USA.NA T.A.P.R. Member #7068
> > > >We are Borg... Prepare to be assimilated!
> > > >===========================================================
> > > >
> > >
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> > --
> > Keith Gill F.A.S.T.
> > Riverview, FL
> > '91 GMC Syclone #2173
> > '75 Oldsmobile Hurst/Olds
> > '92 Nissan Sentra SE-R
> > http://www.mindspring.com/~keith455
>
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