Ansible Development and Beta Firmware Discussion

cosmicsoundexplorer · 2020-11-19T00:32:16.300Z

Not sure if i missed it or I can get it to work but does midi mode support i2c?
I’d love to play JF and my ER-301 with my midi gear.

csboling · 2020-11-19T00:34:03.770Z

It should work in the latest beta, if you’re willing to try it out that would be great!

cosmicsoundexplorer · 2020-11-19T02:34:14.395Z

Oh great! I’ll give a try soon.
Hopefully it works with my op-z plugged into Ansible.

jeanes · 2021-01-11T23:45:15.377Z

I posted about this over in the Polyend Tracker thread, but I imagine its worth me sharing here, too!

Ansible’s MIDI mode doesn’t seem to work with the Tracker. The Tracker locks up Ansible when I plug it in, with TR2 lit and Ansible not responding to any MIDI input. I have to power cycle to get Ansible responding again (to a grid, or other USB MIDI device).

My Ansible works great in MIDI mode with all my other USB midi gear!

Leverkusen · 2021-01-12T05:37:12.377Z

The Tracker draws 500 mA of power over USB with a peak of up to 1200 mA when powering on. Could it be that this is a bit much for Ansible?

jeanes · 2021-01-12T06:27:13.597Z

It could well be, but I’m using a power splitter USB cable so the Tracker is being powered direct, not by Ansible.

The same happens either direct through Ansible, or via my splitter.

Leverkusen · 2021-01-12T07:00:15.285Z

Ah, that’s too bad. Then it might be a bug. Have you considered reproting it on the Tacker GitHub so that they can have a look into it and others can share their experiences with other USB Midi and USB power splitters?

robotboot · 2021-01-13T20:14:35.224Z

im no help as i only use it with my grid plugged in directly but posting your power splitter might help as maybe its not the correct one as that seams to be a confusing cable.

jeanes · 2021-01-13T23:03:29.480Z

It’s definitely the correct cable, and it works perfectly well with all other hardware (i.e. my grid, my OP-1, my Pyramid).

ngwese · 2021-01-15T02:02:26.137Z

jeanes:

Ansible’s MIDI mode doesn’t seem to work with the Tracker. The Tracker locks up Ansible when I plug it in, with TR2 lit and Ansible not responding to any MIDI input.

Without access to a Tracker to test with it is really difficult to diagnose what might be going wrong. I briefly looked through the specifications and manual looking for clues but without hardware to test against I’m at a loss. My only guesses at this point are:

The dual role (OTG) mode of the Tracker’s USB port could be causing problems.
If the Tracker presents multiple USB endpoints that could also be a problem.
On rush current consumption when connected could be causing a brown out (but in this case it sounds like some external power in being used)