Update to the Edirol MIDI Tally project ! (https://dargs.com.au/2011/06/19/edirol-v-8-midi-tally-interface/)
I’ve put some code and schematics on github (https://github.com/dargs/Edirol-MIDI-Tally-Interface). Note- there are some mistakes in the schematics, but it was quite some time ago that I last looked at them, and this project is currently side-lined. Feel free to use the files as a guide only to your own projects.
When I get hold of another V4 or V8 (the one I was using when I wrote the code was on loan and I had to return it), I’ll have another crack at it!