RuntimeError: Can not init Myriad device: NC_ERROR on RaspberryPi 3 with NCS Ver. 1

[samimk]

I am trying to install OpenVINO on RaspberryPi 3 with NCS. Unfortunately, after several attempts, the procedure which I followed step-by-step was unsuccessful. The procedure itself ran smoothly, without any errors, but I haven't successfully executed any model, neither from examples nor my own. For example, when I try to execute 

object_detection_sample_ssd -m face-detection-adas-0001.xml -d MYRIAD -i ~/test1.jpg

 or the python version of the same example, I get:

        API version ............ 2.1
        Build .................. 2021.2.0-1877-176bdf51370-releases/2021/2
        Description ....... API
Parsing input parameters
[ INFO ] Files were added: 1
[ INFO ]     /home/pi/test1.jpg
[ INFO ] Loading Inference Engine
[ INFO ] Device info: 
        MYRIAD
        myriadPlugin version ......... 2.1
        Build ........... 2021.2.0-1877-176bdf51370-releases/2021/2
[ INFO ] Loading network files:
        face-detection-adas-0001.xml
[ INFO ] Preparing input blobs
[ INFO ] Batch size is 1
[ INFO ] Preparing output blobs
[ INFO ] Loading model to the device
[ ERROR ] Can not init Myriad device: NC_ERROR

The same error appears in my own code, when executing:

load_network(network=net, device_name='MYRIAD')

The NCS is recognized, and dmesg  and lsusb print:

[  988.691888] usb 1-1.4: new high-speed USB device number 5 using dwc_otg
[  988.822626] usb 1-1.4: New USB device found, idVendor=03e7, idProduct=2150, bcdDevice= 0.01
[  988.822646] usb 1-1.4: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[  988.822660] usb 1-1.4: Product: Movidius MA2X5X
[  988.822674] usb 1-1.4: Manufacturer: Movidius Ltd.
[  988.822687] usb 1-1.4: SerialNumber: 03e72150

Bus 001 Device 005: ID 03e7:2150 Intel Myriad VPU [Movidius Neural Compute Stick]

udev rules are updated with:

SUBSYSTEM=="usb", ATTRS{idProduct}=="2150", ATTRS{idVendor}=="03e7", GROUP="users", MODE="0660", ENV{ID_MM_DEVICE_IGNORE}="1"
SUBSYSTEM=="usb", ATTRS{idProduct}=="2485", ATTRS{idVendor}=="03e7", GROUP="users", MODE="0660", ENV{ID_MM_DEVICE_IGNORE}="1"
SUBSYSTEM=="usb", ATTRS{idProduct}=="f63b", ATTRS{idVendor}=="03e7", GROUP="users", MODE="0660", ENV{ID_MM_DEVICE_IGNORE}="1"

User pi belongs to users group, and the same error appears also when executing everything as root.

Hardware is Raspberry Pi 3 Model B Rev 1.2, and OS is Raspbian GNU/Linux 10 (buster). The PSU is more than powerful enough, with 4.5A.

I know there are a lot of similar posts, I read many, but none of them has helped me to resolve the problem. So, I would appreciate any help or hint how to proceed.

[Maria_R_Intel]

Hello samimk,

Thank you for posting on the Intel* Community.

To better assist you, we will move this thread to the proper sub-forum. Please expect a response soon.

Best regards,

Maria R.

Intel Customer Support Technician

[Peh_Intel · Accepted solution]

Hi Samimk,

Greetings to you.

I notice that you’re using Intel® Movidius™ Neural Compute Stick (NCS) which is not supported by the OpenVINO 2021.2. NCS is supported up to OpenVINO™ toolkit 2020.3 LTS release only.

You may refer to the following link for the NCS support notification :

https://docs.openvinotoolkit.org/2020.4/openvino_docs_install_guides_installing_openvino_raspbian.html#development_and_target_platforms

I would recommend you install OpenVINO 2020.3 LTS to be used with NCS or use an Intel® Neural Compute Stick 2 (NCS2) towork with OpenVINO 2021.2.

Once you’ve installed the OpenVINO 2020.3 LTS, you need to download the face-detection-adas-0001 model in IR format (2019_R3 version), which is the compatible version with OpenVINO 2020.3 LTS.

I provide the link below.

https://download.01.org/opencv/2019/open_model_zoo/R3/20190905_163000_models_bin/face-detection-adas-0001/

You may refer the below link for installation:

https://docs.openvinotoolkit.org/2020.3/_docs_install_guides_installing_openvino_raspbian.html

Hope to hear good news from you.

Cheers,

Yu Chern

[samimk]

Hello Peh_Intel,

Thank you very much, your instructions have helped me to fully resolve the problem. Now everything works as expected.

Regards,

samimk

[Peh_Intel]

Hi Samimk,

Glad to hear that. This thread will no longer be monitored since this issue has been resolved. If you need any additional information from Intel, please submit a new question. 

Regards,

Yu Chern