Hi everyone, There are 2 MIDI System Common opcodes (0xF4 and 0xF5) and 2 MIDI System Realtime opcodes (0xF9 and 0xFD) that the official MIDI standard reserves for future use.
I'm currently collecting examples of non-standard uses of these opcodes in hardware and software (on MIDI 1.0 DIN cables and in other hardware and software contexts). Examples I've collected so far are: -- 0xF9 as "MIDI Tick" -- 0xF5 for both "MIDI endpoint" and "virtual cable" selection I'm doing this as part of the process of finishing: http://www.cs.berkeley.edu/~lazzaro/sa/pubs/txt/current-mwpp.txt http://www.cs.berkeley.edu/~lazzaro/sa/pubs/txt/current-guide.txt It uses the semantics of the commands as part of its resiliency scheme, and so knowledge of non-standard uses of the reserved commands is needed to help craft resiliency logic for the opcodes. Probably best to send the info directly to [EMAIL PROTECTED], the topic is too mundane for the list ... thanks in advance! ------------------------------------------------------------------------- John Lazzaro -- Research Specialist -- CS Division -- EECS -- UC Berkeley lazzaro [at] cs [dot] berkeley [dot] edu www.cs.berkeley.edu/~lazzaro -------------------------------------------------------------------------
