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Zam

JU60

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Hi all

My next midibox project concern my juno60

There is two topic, all the CV handling for all slider parameter, no test yet, but I have a clear view about what I'll do about it.

Then the keyboard, note on/off to remote play the JU60 via midi note...

I try interfacing a matrix "reader" with 1 DIN scanning the JUNO CPU output (to KB), and a "return" with 1 DOUT to the JUNO CPU, with "result" but not usable. The idea is to active a DOUT pin at the proper instant compared to DIN scan (which row is scanned) so the JU60 CPU know which note is virtually pressed...

I guess my issue here is the time sensitivities (as maybe component and clock between two system)

The question is simple, what is the fastest possible loopback latency with mios (MB_NG in my case) to trig a DOUT pin according to a DIN status ?

For what I see so far in my Oscope, the JUNO seem to scan the KB (and other buttons...) within 1ms so I guess I should send a DOUT trig in less than 100us (and for less than 100us) after the DIN "read" a row.

I think a lot about the method and end up with this idea, a matrix reading a matrix, but I don't know if my approach is the good one...

Input welcome

Best

Zam

 

ps: I also think about DCB emulator with midibox, but I'm not good enough to code this...

 

Edited by Zam

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