[sdiy] midi clock

[Byron G. Jacquot]

>Early MIDI cables often had only two conductors... modern ones have all five.
>The normally unused ground pin might be a problem... or possible some
>non-standard uses of the additional lines (I think some drum machines did sync
>on these ???)

The important lines of Roland's DIN sync connector are the 3 unused pins:
clock, start/stop and reset.  The other two were for more esoteric uses
(triggering the fill-in on the 808), and were "borrowed" for MIDI.  I don't
know of any devices that actually put both interfaces on the same plug.

And back onto topic:

>> basically 1 in, 2 out with only a 3 pin connection. there's no direct
>> contact between the 2 outs in the split box. how can either the linn or the
>> 909 detect when i stick a  second midi connector in there?
>> the problem is the 909 is the only clock that &^%$ linn will sync to...

When you use the external split box, what's powering it?  Does it have it's
own power supply, or is it getting juice from the MIDI line?  If it's
passive, or powered from the MIDI line, you've just moved the MIDI current
driving problem one box down the line.

Byron Jacquot