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Following some discussion in the ROOL forums, I finally got around to tidying up and putting together release archives for the latest version of the USB MIDI module.

Thanks to Dave Higton, we now have:

  • Proper access to the USB hardware. ☺
  • Support for up to four MIDI devices.
  • Proper millisecond time stamps, in fast time mode.
  • Ability to schedule events in the future.

Plus some other stuff, but those are the crowd pleasers.


In terms of the API, the module is more or less a clone of the original Acorn MIDI module. The API is... weird... but it is hoped that it will be a drop-in replacement and software will just work. Certainly, in development, it worked just fine with Maestro.


Download the module (v0.07) (zip, ~190KiB)
Includes very out-of-date manual as a PDF; use it as a basic reference if you're not familiar with how the Acorn original worked.

Download the source code (zip, ~92KiB)
Builds with the DDE.

The module is licenced EUPL v1.1 only. A PDF copy of this licence is supplied. If you've never heard of the EUPL, it's like the GPL only without the nutty politics and the unpleasant viral behaviour.



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