[sdiy] Yamaha CS15 SSK (key assigner) replacement project

[The Old Crow]

   Hey folks,

   My CS15's YM24800 key assigner chip failed last month, so given the 
scarcity of the part I decided
to make an equivalent using an Atmel microcontroller and the Arduino IDE 
as my first project to use
that development paradigm.  While I am an old hand at assembly language 
programming with entire
RTOSes for multiple-zone PID controllers written in Z8 assembly, I was 
never really a C programmer.
Even so, after spending a week knocking the rust off my coding chops 
here is the result, for those
interested.  Open source/open hardware , cc-by-sa, free for 
non-commerical use, etc.  Enjoy.

https://github.com/cs80/CS15_SSK/tree/master

--Crow
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