[sdiy] MIDI commands to drive external clock steps..

Jean-Pierre Desrochers jpdesroc at oricom.ca
Thu Apr 3 16:14:03 CEST 2025


Thank You all !

I can now think of a way to build this project.
Or use Tom's easy to build project..

This forum is a blessing !!!!

> -----Message d'origine-----
> De : Roman Sowa <modular at go2.pl>
> Envoyé : 3 avril 2025 06:52
> À : Jean-Pierre Desrochers <jpdesroc at oricom.ca>; Synth-diy at synth-diy.org
> Objet : Re: [sdiy] MIDI commands to drive external clock steps..
> 
> With your programming skills this is half an hour job.
> 
> Real Time messages are the easiest to read, as they are all 1 byte long and
> don't care about any others, they can even appear in the middle of multi-byte
> messages without bothering anyone.
> So configure UART for MIDI baudrate and look for 0xF8 - this is MIDI clock,
> which you can then feed to a divider of your choice and drive the pin. MIDI
> start is 0xFA, this can start your device outputing pulses.
> MIDI stop is 0xFC, use to to hold clocking. 0xFB - continue, so clock starts
> appearing again like it was on Pause. There's no Pause in MIDI, Stop is used for
> that.
> 
> Roman
> 
> W dniu 2025-04-02 o 22:58, Jean-Pierre Desrochers via Synth-diy pisze:
> > So far I used my faithfull Moog sequencer 960 _clone_ as standalone
> >
> > and self generating its clock pulses to create sequencing notes. Fine.
> >
> > But I’d also like to use it with external pulses coming from
> >
> > Some kind of ‘MIDI to clock pulse generator’..
> >
> > My question is, using a PC sequencer (like Cakewalk SONAR X3 Pro, or any
> > PC sequencer),
> >
> > What MIDI data should I use and read to get timing pulses ?
> >
> > There are many ‘clock related’ MIDI data available
> > but I cannot find which one(s) to use..
> >
> > I’d like to have the choice of timings like whole, half, quarter, 8th,
> > 16th, etc..
> >
> > Thanks for your help..
> >
> >
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