[sdiy] cheapo midi to din

[Chris Crosskey]

Colin Fraser has a little schemo thingy for a MIDI-DIN that powers itself
off the midi port and looks like a matchbox with sockets on it....I saw it
at one of the Synth-DIY weekends at Pauls a couple of years back, he had a
TR606 that was being synced with it and was itself being used to drve his
cloned 808/909 drums... worked so well it was boring.....:-))

chrisc

> -----Original Message-----
> From: René Schmitz [mailto:uzs159 at uni-bonn.de]
> Sent: 11 September 2002 09:55
> To: Dan Gendreau; Dominic Tarr; synth-diy at dropmix.xs4all.nl
> 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
> 
>  
> 

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