[sdiy] DIY MIDI clock to sync pulses

[Jason Proctor]

mr blacet has a PIC which does this with a bit of added cmos logic -

http://www.blacet.com/misc.html

i'm about to build one, though i don't really have an ETA for completion.



>Hi
>
>Can any recommend me a simple midi clock to sync pulses circuit,
>preferably PIC based?
>
>I've already tried Bareille's MC628 but I can't get that to work, simple
>as it is...  I can trace the MIDI signal into the PIC but that just
>doesn't seem to respond to it.  I've already tried replacing the PIC,
>re-verifying it was programmed correctly, changing the crystal, all
>without success.  As Bareille specifies a non-existant 8-pin 4N28
>I have also tried some true 8-pin optocouplers, just to see if
>the output signal might be slightly different, but no luck.
>
>The PIC does appear to initalize though, as it pulls up RA1 after powering up.
>
>Anyway, I'm fed up with this circuit, so I wondered if there
>are any others around.
>
>Louis