2011-11-24 by Mark v.d. Berg
--- In bc2000@yahoogroups.com, "diddywahdiddy1" <550@...> wrote:
> In Reaper I want to connect the feedback command for 'loop play' (on and off) to the BCR. After a lot poking a member of the Reaper community found that: Loop is 0x90 0x56 0x7f for LED on and 0x90 0x56 0x00 for LED off.
> So, now what? :)
In standard MIDI:
$90(=0x90) = "Note On" message on MIDI channel 1
$56 = Note Number 86 (decimal)
$7F = Velocity 127 (decimal)
So what you can do, is have a BCR button generate a Note On message.
E.g. via BC Manager's button dialog box under "Standard output":
Type = Note
Channel = 1
Note = 86
Velocity = 127
Mode = Toggle On
Then, when you press the button for the first time, it outputs $90 $56 $7F, and the second time it outputs $90 $56 $00.
(The second message is generated automatically under the BCR's protocol for Note messages for buttons. For more information see "BC MIDI Implementation.pdf", section 15.5.)
> For Stop use 0x5d.
I suppose this is the note number again, so you'd have to use Note = 93 in this case.
Hope this helps,
Mark.