- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
Hi,
I successfully installed the NCSDK in API-only mode on a custom platform (x86-64) and ran the examples. However, from time to time, I get the following errors upon opening the connection with the device:
W: [ 0] ncDeviceOpen:533 failed to find device
ncDeviceOpen Failed [-2]: Could not open the device.
and
E: [ 0] dispatcherEventSend:730 Write failed -4
Hello NCS! Device opened normally.
Goodbye NCS! Device Closed normally.
NCS device working.
Log of a successful run (dmesg):
[Sep19 07:29] usb 3-1: USB disconnect, device number 2
[ +0.248874] usb 4-1: new SuperSpeed USB device number 2 using xhci_hcd
[ +0.020071] usb 4-1: New USB device found, idVendor=03e7, idProduct=f63b
[ +0.006850] usb 4-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ +0.008001] usb 4-1: Product: VSC Loopback Device
[ +0.005103] usb 4-1: Manufacturer: Intel Corporation
[ +0.005347] usb 4-1: SerialNumber: 1FF861D5542010
[ +1.242801] usb 3-1: new high-speed USB device number 3 using xhci_hcd
[ +0.134026] usb 3-1: New USB device found, idVendor=03e7, idProduct=2150
[ +0.006821] usb 3-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ +0.007819] usb 3-1: Product: Movidius MA2X5X
[ +0.004701] usb 3-1: Manufacturer: Movidius Ltd.
[ +0.004939] usb 3-1: SerialNumber: 03e72150
[ +0.351915] xhci_hcd 0000:02:00.0: Cannot set link state.
[ +0.007609] usb usb4-port1: cannot disable (err = -32)
[ +0.005258] usb 4-1: USB disconnect, device number 2
Log of a unsuccessful run:
[ +0.250331] usb 4-1: new SuperSpeed USB device number 33 using xhci_hcd
[ +0.019707] usb 4-1: New USB device found, idVendor=03e7, idProduct=f63b
[ +0.006873] usb 4-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ +0.007885] usb 4-1: Product: VSC Loopback Device
[ +0.005087] usb 4-1: Manufacturer: Intel Corporation
[ +0.005335] usb 4-1: SerialNumber: 1FF861D5542010
It seems like when switching from USB2.0 to USB3.0 it gets stuck.
This happens both using the
hello_ncs_cpp
example and the python examples from the ncappzoo.After a few tries the examples start, other times (more commonly) the examples starts right away.
Notes:
- This problem emerged using both the Movidius Neural Compute Stick and the UP AI Core.
- The USB connection is provided by an internal USB hub.
What could be the possible cause of this behaviour?
Edit: Added dmesg logs.
Link Copied
1 Reply
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
For future reference: I uninstalled the ncsdk 2.05.00.02 and installed the 1.12.00.01. Now everything works correctly.
Reply
Topic Options
- Subscribe to RSS Feed
- Mark Topic as New
- Mark Topic as Read
- Float this Topic for Current User
- Bookmark
- Subscribe
- Printer Friendly Page