13 Jul
2012
13 Jul
'12
8:55 a.m.
On 2012-07-12 23:02, Fons Adriaensen wrote:
That is because the LP sends MIDI using running
status, and there
is no way to reset it (i.e. force a status byte on the next message),
except a power cycle. The top row uses controller events while the
rest uses key up/down. After re-opening the device the driver code
needs a status byte, and usually using the top row will provide one
(assuming the last event in the previous session was a key one).
Ok, thanks, that sounds like a sane explanation. However it surprises me
a bit (maybe it shouldn't), since I read this in the "Launchpad
programmers reference" (pdf released by novation
http://d19ulaff0trnck.cloudfront.net/cdn/farfuture/zJMvGWWVN-T4_9ocxl0S-99M…):
"Hence a Launchpad MIDI message is always three bytes long. (For good
reasons, the driver does
not support running status.)"
Is there anyway to get a status byte to the driver/launchpad from my
code, so I don't have to rely on presses after opening a new batch of
chuck code? Could I for instance emulate "unplug" and "plug in" the
launchpad or it's driver from code?
I've been using the launcpad a bit with renoise, esp the duplex tool,
and somehow the launchpad works perfectly normal there, so something
tells me there is a way.
--
Atte
http://atte.dk http://modlys.dk