We have an existing design based on the XMOS USB Audio 2.0 Dev Kit and currently running a slightly modified version of v3.2 of the reference app. I'm currently trying to update our software to the v6.1.1 codebase.
The new code seems to behave normally when connected to a Windows PC but I'm seeing USB enumeration problems when testing with a Mac Mini. When plugged in the board will either:
(a) Completely fail to enumerate - does not appear in System Profiler
(b) Appears on the USB bus but is not available to select as an output device
(c) Drops back to USB Audio Class 1 mode
or (d) Works normally (rarely)
To rule out a problem with our customised hardware and software, I tried using the precompiled binary on the Dev Kit board and saw the same problem. Could I be doing something wrong or is this a known bug?
USB Audio 2.0 v6.1.1 on Mac
-
ChrisW
- Member
- Posts: 11
- Joined: Tue Apr 22, 2014 11:36 am
-
Ross
Verified - XCore Legend
- Posts: 1163
- Joined: Thu Dec 10, 2009 9:20 pm
- Location: Bristol, UK
Is there a reason why you are using 6.1.1 - 6.5.0 is the latest released version?
(Also, I don't see version 6.1.1 in the change log?)
(Also, I don't see version 6.1.1 in the change log?)
-
ChrisW
- Member
- Posts: 11
- Joined: Tue Apr 22, 2014 11:36 am
Sorry that should say v6.1.0.
I've now upgraded to 6.5 and this has solved the problem. I hadn't realised that 6.5 was suitable for the old dev boards, I thought it was just for the new MFA platform.
I've now upgraded to 6.5 and this has solved the problem. I hadn't realised that 6.5 was suitable for the old dev boards, I thought it was just for the new MFA platform.