[sdiy] Midi Retrofit - SOLVED WITH PIC

[Jaroslav Lukesh]

> Odesílatel: Tom Arnold <xyzzy at sysabend.org>
> So I'm pondering adding midi to my Omni2 now that it works.  I mean, its
> working so I should break it right?
> 
> Since its TOC based and I'd like to maintain that level of polophony even
> though using it would completely nuke midi bandwidth, has anyone seen a
> midi->trigger project with 49 outs?  The keyboard isnt matrixed at all
and 
> most of the brute-force midi mods seem to be based on the idea of a
matrixed
> keyboard, but I'm hoping...
> 
> Otherwise I'll code something up for a Scenix SX48 I guess.  Well, any of
> the Scenix chips would do it, but the SX48 would allow me to only have to
> latch up outputs twice because it has a bucket load of IO pins...
> 
> ( yes, I know its Ubicom now, I just hate the name Ubicom )

Hi, you coould use cheapest MCU from Microchip, it is complete solution:

www.bezstarosti.cz/jungle/rspicout/rspicout.htm

This is in czech, but schematic and source code is readable in english too
:-)

If need more english comments, please mail to jiri at bezstarosti.cz I hope
that he has english texts.


You will need to adapt bitrate only for MIDI clock and receive routine for
translate MIDI commands (you could get it from other similar PIC projects,
like MIDI/CV or so).

Other similar MIDI projects:

www.geocities.com/JDPetkov/Hardware/mdec64/mdec64.htm (wants money)
free:
www.callipygian.com/F84midi/index.html
http://www.aeug.org/~chip/other.html
http://www2.netdoor.com/~rlang/
http://www.hku.nl/~pieter/HARD/MIDI2SW/MIDI2SW.html


Regards, JL.