USB stack issue with Sierra

sseidman · Joined: 14 Mar 2005 Posts: 159

I made a simple USB game controller with an 18F4550 in 2011, which has worked just dandily using ccs's USB.c. It's worked robustly in windows and in macs since it was built.

All of a sudden, with the newest OSX version, Sierra, it failed, resolving as a mouse instead of a USB controller. I recompiled with the newest version of the compiler I have, 5.016, with the date on USB.c from Feb 2013. It, too, fails miserably on Sierra. Doesn't seem to enumerate, takes away keyboard control, and a window pops up repeatedly in the corner. I can't be descriptive here, as I'm not a mac user, but suffice it to say, "it fails". Still works fine under Capitan, though.

I think my next action is to update my license, get the newest USB stack, and if that doesn't work, then I'll try CCS support. Thought I'd post here, though, in case anyone knows about this, or can at least tell me if I'm using the latest USB.c. Other advice is welcome!!

Ttelmah · Joined: 11 Mar 2010 Posts: 19535

It'll be down to the VID/PID.
It sounds as if the combination you used, now has been recorded as a mouse device, and a driver for this combination has been added to Sierra.
Who's VID did you use?. Your own?.

sseidman · Joined: 14 Mar 2005 Posts: 159

Ttelmah · Joined: 11 Mar 2010 Posts: 19535

Are you sure?.
The older compilers for some devices used a Microchip ID, which was not CCS's. On the compilers for about the last year, this has been changed to one that is now CCS's. Older code using the former VID will no longer work on many newer OS's.

Test the ID with:
<http://www.the-sz.com/products/usbid/>

ezflyr · Joined: 25 Oct 2010 Posts: 1019 Location: Tewksbury, MA

Hi,

I recently had a similar problem with a USB bootloader first built a few years ago based on the provided CCS examples. After I made a few changes, and recompiled, it wouldn't work any longer (Windows 7 OS). I recompiled everything 'from the ground up' using the latest compiler, example files and includes, and the CCS USB bootloader started working again like a champ!
_________________
John

If it's worth doing, it's worth doing in real hardware!

Ttelmah · Joined: 11 Mar 2010 Posts: 19535

Yes. If you look at the files containing the VID, you will find they have changed with the newer compiler.