Newbie trying to run depthai_demo

Lihu

Anyone can help me with this?
Ubuntu 20.4
loaded the udev rules for movidius, and this is what it states:
"cat /etc/udev/rules.d/80-movidius.rules
SUBSYSTEM=="usb", ATTRS{idVendor}=="03e7", MODE="0666"
"

python3 depthai_demo.py
Using depthai module from: /home/lihu/.local/lib/python3.8/site-packages/depthai.cpython-38-x86_64-linux-gnu.so
Depthai version installed: 0.3.0.0+dev
Depthai version required: 0.3.0.0
Depthai development version found, skipping check.
No calibration file. Using Calibration Defaults.
Compiled mode found: compiled for 14 shaves, 14 cmx_slices and 1 NN_engines
XLink initialized.
No USB device [03e7:2485], still looking... 10.016s NOT FOUND, err code 5
depthai: Error initializing xlink
terminate called after throwing an instance of 'std::system_error'
what(): Invalid argument
Aborted (core dumped)

I think movidius rules are set incorrectly to 0666 rather than the correct 2485

Brandon

Hi Lihu,

Sorry about the delay. I just now noticed your post on our discussion forum!

I'm wondering if something is going wrong with USB3 here. To debug that, could you try running the following:

./depthai_demo.py -fusb2

This will force USB2 mode to see if there is any USB3 issue.

Thoughts?

Thanks,
Brandon

Lihu

It does not appear to like being plugging into my SS ports. Once I use a USB2.0 port with your USB2.0 command it seems to work.

Any hints getting this to work on an RPI 3B+?

Brandon

Hi Lihu,

Thanks. We discussed this behavior and have seem some certain hosts where this is the case. We're trying to debug why the force USB2.0 command is required with these hosts.

On the RPI 3B+, it should be fairly straightforward actually, just following the installation script here:
https://docs.luxonis.com/en/latest/pages/api.html#installing-system-dependencies

And sorry about the delay... I swear I had composed and sent this message before. I'm going to check to see if something is going wrong with our forum software.

Thoughts?

Thanks,
Brandon