[sdiy] MIDI receiving flowchart.. WAS MIDI I/O c code..

[Jean-Pierre Desrochers]

In fact nobody wants to re-invent the wheel, so…

I’m sure many of you guys,  MIDI hardware designers on this list went through

drawing some kind of coding flowchart before you started typing right ?

These ‘drawings’ would be very helpful for people like me.

JP

 

De : Synth-diy [mailto:synth-diy-bounces at synth-diy.org] De la part de Jean-Pierre Desrochers
Envoyé : 20 mars 2020 15:35
À : 'Neil Johnson'; 'Tom Wiltshire'
Cc : 'SDIY List'
Objet : Re: [sdiy] MIDI receiving flowchart.. WAS MIDI I/O c code..

 

Yes, but It’s incomplete about the received notes and how to process

Them for 8 voices..

 

De : Neil Johnson [mailto:neil.johnson71 at gmail.com] 
Envoyé : 20 mars 2020 15:26
À : Tom Wiltshire
Cc : Jean-Pierre Desrochers; SDIY List
Objet : Re: [sdiy] MIDI receiving flowchart.. WAS MIDI I/O c code..

 

You mean like this:

 

https://github.com/nejohnson/miby

 

Look in the /doc folder for a PDF.

 

Neil

 

On Fri, 20 Mar 2020 at 19:17, Tom Wiltshire <tom at electricdruid.net> wrote:

I think a flowchart is a good idea, but I’d say that the voice assignment part is a separate thing from the MIDI. Voice handling is a whole area in its own right.

 

Tom

 

==================
       Electric Druid
Synth & Stompbox DIY
==================

 

On 20 Mar 2020, at 19:10, Jean-Pierre Desrochers <jpdesroc at oricom.ca> wrote:

 

One idea came to my mind reading all your great comments:
Would it be usefull for anybody in this DIY forum including newbies like me
that someone would publish a 'starting' MIDI receiving flowchart
of the basics from the incoming bytes to the actual final process
of each received notes ?
For example this helping flowchart would show the basic steps
of first: the interrupt function (USART Rx flag test, RxBuffer[] updating, etc...)
Then the behaviour of the main loop processing each received byte
for let's say a polyphonic MIDI to CV 8 voices module ?
And only for one MIDI channel for simplicity to understanding ?
I did in the past a big flowchart for my MIDI to CV 6 voices module
That I could 'squeeze'to keep only what's stated above.
This could be a starting point for anybody who wants to 'correct' things
and this way the DIY forum would have a 'list standardized' flowchart
For anybody to use in the future..
This would answer many design questions to come.
Again, a small flowchart of how to receive MIDI bytes for only one MIDI channel
And process for polyphonic use (8 voices).
If this suggestion interests enough diyers I could put my cleaned out
Flowchart on the list as a start..
Or maybe I'll be the only guy to be interested in that
Since many of you gurus have already been through these codings..
JP 




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