Polhemus Fastrak

[Kevin Chiu]

Hi Will,

Sorry for the late reply.
It now seems more like an USB driver issue for me, are you using the latest Fastrak USB driver on the computer for connecting the Fastark?

Since we know that older versions of the Fastrak USB driver were unstable with Vizard, I think it will also be good for that if you can contact Polhemus support for checking the version of your USB drivers are the newest one.

Please let me know if you still run into problem even using the latest Fastrak USB driver.
Thanks.

Best Regards,
Kevin

[farshizzo]

Can you try the following code instead:

polhemus = viz.add('polhemus.dle')
fastrak = polhemus.addFastrak(port=1,baudRate=115200,legacy=False)

We added experimental support for the newer FasTrak protocol and the legacy flag controls whether to use the older or newer protocol.

[williamchappell]

Hey guys, I've tried the latest code, but still get the following error:

******************************************************************************
** Loading trackingtest.py
******************************************************************************
Loading File: lab.osgb
polhemus.dle             	Polhemus Extension
** NOTIFY: Connected to Unknown device over USB: 1 sensors detected
** ERROR: Failed to connect to a FasTrak: Device not found
** ERROR: Failed to create extension sensor with polhemus.dle
** Load Time: 2.60 seconds

[williamchappell]

Hey, I've been in contact with the guys at Polhemus, and they seem fairly confident that the issue isn't on their end.

Is there anything else I can try?

Thanks.

[farshizzo]

I believe the issue is that the newer Polhemus FasTrak drivers identify themselves as a different device, so our existing plugin is unable to detect them properly (hence the "Connected to unknown device" message). We've updated our plugin to support these newer models. Try downloading/installing the latest version of Vizard and see if it fixes the issue.

[williamchappell]

Thank you for your reply.

I will head into work tomorrow and give it a try!

Will.

[williamchappell]

Thank you! It works like a charm now