"Pocket Multiprogrammer" info. Also need LS1 VATS info

[Ross Myers]

> Changing topics, anyone know the target frequency or at least acceptable
> range of frequencies for the LS1 VATS input?
> I seem to recall someone dicussing the VATS on the LS1 in the
> distant past, but I couldn't locate anything of the sort in the archives.
> I have a friend that wants to put one in a 280Z or Austin Healey and I was
> going to make a 555 circuit to fake out the VATS for him.
>
> Thanks,
>
>    Marc


Marc,

I would be VERY surprised if GM still use the old square wave I/P for the
LS1 generation of PCM's.
The ones out here in Australia (It is the same PCM) communicate over the
Class2 data line with the security system (actually it gets converted to
UART data). It is all done in serial comms, no simple square wave foolery
these days...

Bye,
Ross Myers

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