Hmm. Seems I was wrong about the 11 byte message being on the beat. Looking at Midi-ox output today it seems to stay constant at whatever tempo I set. Strange thing is I swear I saw it changing yesterday...

Just found this link:

http://fuzzysynth.blogspot.co.uk/2015/0 ... m-man.html

This guy has done loads of work on the protocol.

OK...some progress. I wrote Arduino code to send the 11 byte "clock" message. The Jamman (now in slave mode) responds with a "SYN" message and the Jamsync "dot" comes on in the display. So far so good. Pressing the pedal in an empty loop puts the Jamman in "wait to...

Hi After many months I suddenly got the enthusiasm for this again. This time I successfully managed to read the sync code from the master-out socket via a midi interface and Midi-Ox... don't know what went wrong last time. So this what I have so far: The 11 byte message (hex) is: F0 00 00 10 7F 62 0...

Hi... sorry for many months of delay!
Yes tried swapping pins 4 and 5 but no luck. I don't have a scope here so was unable to analyse. Any progress at your end?
Cheers
Paul

Hi Pz I have a Jamman Solo XT and also just tried the experiment.... without your success. I have a Roland Duo-Capture Ex USB interface that has midi and made a cable as per your description. Then monitored sync-out with Midi-ox but got nothing (I checked sysex was being reported from another midi d...