[sdiy] Xpander (was: Re: Moog Memorymoog clone almost completed)

[mskala at ansuz.sooke.bc.ca]

On Sun, 18 Oct 2020, Brian Willoughby wrote:
> The real catch is that software USB can only operate at Low Speed, while
> USB-MIDI is a Full Speed Class. I doubt you'll find any software USB
> that talks USB-MIDI to a standard Host driver. So, the context of a
> synth controller rules out software USB. Besides, there's likely no CPU
> left when performing software USB, even at Low Speed.

I think the Mutable Instruments CVpal purports to be a class compliant
USB-MIDI device while running software USB at Low Speed, and although I
don't know off the top of my head what microcontroller it's using, I don't
think it's a very fancy one.

It may well be breaking some of the rules; it has been known to experience
compatibility problems with some hosts; but it also works pretty well with
many hosts.

-- 
Matthew Skala
mskala at ansuz.sooke.bc.ca                 People before tribes.
https://ansuz.sooke.bc.ca/