Re: Selectable chips & boost programming

[cwagner@info2000.net]

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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