MIDI interface: Teensy (Arduino?) libraries usable under Zephyr?

B

b6d

Member
Hi,

a while ago I assembled a kit for a USB/MIDI interface that has a Teensy 4.1 at its core. It's working great.

The official firmware seems to use Teensy's MIDI and USBHost libraries.

I'm thinking about adapting (or maybe rewriting) the firmware: maybe give the thing a user interface (a few buttons and probably a screen), allow it to send regular MIDI clock messages, &ct.

Now I'm wondering how best to tackle the concurrency that will inevitably come up implementing these features.

I'm thinking about learning Zephyr RTOS since it seems supported by PlatformIO which I use for development.

So I guess my questions are:
  • will MIDI and USBHost libraries still work if I use Zephyr?
  • is this even a good idea?
I'm reluctant to roll my own solution using interrupts and counting microseconds because I fear that I'd hit a wall after sinking way too much time into this.

Additional info:
  • I'm proficient in general programming but not in low level/microcontroller development
  • I'm currently learning FreeRTOS for an ESP32 project but couldn't find a way to use that with Teensy using PlatformIO
Grateful for any guidance.
 
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