Midi Line Code Question (Low Level)

[|[| Philip Pilgrim |]|]

Hi all,

I'm happily integrating my 256 pot midi controller UP however the midi
output section is causing much grief. I have a series of parallel to
seriel shift registers that I load then shift out at the proper rate
howver the message is some how corrupted. I verified that the bits in
the massage are correct:

F0 7F AA DD F7
AA is pot address
DD is pot data
|=start and stop bytes = binary one

|11110000||01111111||aaaaaaaa||dddddddd||11110111|



I am conforming to 0 = current on.

1.Is there any special line code for midi? 
2.Does a 1 have to return to zero before a new 1 can be sent?
3. Is there a better list for asking these MIDI hardware questions?
4. I was given a similar schematic from an old electronic musician mag
however it's message format is weird.
|mmmmmmm||nnnnnnnn0|oooooooo0|| 
(I can forward the EM schematic for someone to take a peek)

Thanks
Philip
-- 
Philip Pilgrim          	The Lab 
5 Evan's Drive          	- Analog/Digital Recording/Processing
Hammonds Plains       		- Computer/Synth Interfacing
Nova Scotia, Canada   		- Hardware/Software Development
B4B 1M8                   

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