I've got a Roland TD12 drum brain connected MIDI IN + OUT to a MOTU Micro Express USB Midi Interface via a Macbook Pro running OSX.something. I have my OSX Audio/Midi setup for the TD12 defined as a simple IN and OUT directly into port 4 of the MOTU Micro Express. The TD12 MIDI TX/RX is turned "ON", SoftThru is turned "OFF" (don't need to pass midi in messages...) and I'm pretty sure this is correct. I'm only trying to get signal to the interface with the goal of sequencing drum parts.
Here's the problem....the MIDI "OUT" cable from the TD12 connected to the MIDI "IN" of the interface completely hangs up the MOTU Express. All the lights go constant on and nothing happens. Under normal operation the 'port' indicator light would operate when you hit a trigger. I swapped the cables with the adjacent keyboard and the interface works fine so cables are good. I'm guessing there must be a midi loop of some sort going on, but I can't figure it out. Does anybody have any clue as to what TD12 software setting that I'm missing aside from those mentioned above that would cause the interface to hang??
any help would be appreciated