Hi Dieter, yay! Thanks, Doug

--- In Doepfer_a100@yahoogroups.com , <yahoo@...> wrote:
>
> > Hi folks using the A-152 with a cv input immediately gives rise
to the
> > need for a trigger on address selection. I'm thinking a socket
for
> > this could fit at the bottom of the dig outs section. Has anyone
done
> > this
> >
> > Another thought is a difference or differentiator module that
could
> > generate triggers on discontinuities. Something like this could
be
> > built from an analog shift register and a comparator, I suppose!
> >
> > Thanks,
> > Doug
>
> Not necessary :-)
>
> Module A-152 has a non-published feature (valid for all A-152
manufactured
> later than October 2004): RC4 of the PIC16F676 outputs a short 5V
trigger
> signal whenever the address changes. RC4 is pin 6 of the PIC16F676
and is
> also available on pin 2 of the expansion connector JP6 (next to
the bus
> connector on the A-152 main board / board A). Attention: the
signal is not
> buffered/protected. You should at least add a protection resistor
(~1k) if
> you want to connect it to a socket. Otherwise the PIC can be
destroyed.
>
> Best wishes
> Dieter Doepfer
>