[sdiy] cheapo midi to din

[Rude 66]

i had the same problem trying to use the 'sync' input on my linn drum. sure,
it accepts the clock pulse from one of the pins from both midi clock and din
sync clock. but there's no start/stop, so it's kinda useless..

r./


----- Original Message -----
From: "René Schmitz" <uzs159 at uni-bonn.de>
To: "Dan Gendreau" <gendreau at rochester.rr.com>; "Dominic Tarr"
<dmt10 at waikato.ac.nz>; <synth-diy at dropmix.xs4all.nl>
Sent: Wednesday, September 11, 2002 10:55 AM
Subject: RE: [sdiy] cheapo midi to din


> At 01:11 11.09.02 -0400, Dan Gendreau wrote:
> >Dominic Tarr Wrote:
> >
> >> I was wondering if the midiclock (i.e. the 24 PPQ signal) could
> >> be used to control DIN sync gear, if no other midi data was sent?
> >>
> >> would you need to adjust the voltage levels or any thing?
> >> would the pulse be long enough?
> >
> >Apples and Oranges. There are no "levels" that can be directly converted
> >from midi to sync. The Midi clock actually encoded as serial data. You
> >really need to use a microcontroller to monitor the midi clock and render
it
> >as a DIN SYNC signal.
>
> Not quite.... The serial data is rendered as a series of current pulses,
and
> can be converted back to a voltage again quite easily.
> Under the assumption that no other MIDI traffic is present, one can
> use a monostable to produce a DIN sync clock signal. I remember having
seen
> this done with a 555 timer. But this doesn't give the Start and Stop
signals.
>
> Cheers,
>  René
> --
> uzs159 at uni-bonn.de
> http://www.uni-bonn.de/~uzs159
>
>
>