pynrfjprog not working on Raspberry Pi 4

RE: pynrfjprog not working on Raspberry Pi 4

Vidar Berg — Fri, 03 Dec 2021 11:30:06 GMT

Hi,

Looks like there may be a problem with the installation script. I noticed now that my /lib/python3.7/site-packages/pynrfjprog-10.15.1-py3.7.egg/pynrfjprog/lib_armhf/ directory is empty after the installation.

Can you try to manually copy the libraries from /opt/nrf-command-line-tools/python/pynrfjprog/lib_armhf?

E.g.

$ cp -R /opt/nrf-command-line-tools/python/pynrfjprog/lib_armhf /home/pi/Desktop/repo/gateway-software/productionVenv/lib/python3.7/site-packages/pynrfjprog-10.15.1-py3.7.egg/pynrfjprog/lib_armhf

RE: pynrfjprog not working on Raspberry Pi 4

Martí — Fri, 03 Dec 2021 08:14:33 GMT

That makes more sense 🙂

It still throws an error:

Traceback (most recent call last):
  File "/home/pi/Desktop/repo/gateway-software/__init__.py", line 4, in <module>
    main()
  File "/home/pi/Desktop/repo/gateway-software/gateway/mgateway.py", line 32, in main
    OTA.updateBin('','')
  File "/home/pi/Desktop/repo/gateway-software/gateway/OTA.py", line 115, in updateBin
    with HighLevel.API() as api:
  File "/home/pi/Desktop/repo/gateway-software/productionVenv/lib/python3.7/site-packages/pynrfjprog-10.15.1-py3.7.egg/pynrfjprog/HighLevel.py", line 70, in __init__
    raise APIError(NrfjprogdllErr.NRFJPROG_SUB_DLL_NOT_FOUND, highlevel_nrfjprog_dll_path, log=self._logger.error)
pynrfjprog.APIError.APIError: An error was reported by NRFJPROG DLL: -150 NRFJPROG_SUB_DLL_NOT_FOUND. /home/pi/Desktop/repo/gateway-software/productionVenv/lib/python3.7/site-packages/pynrfjprog-10.15.1-py3.7.egg/pynrfjprog/lib_armhf/libhighlevelnrfjprog.so

But I think I'm going to try to repeat your steps on a fresh installation.

RE: pynrfjprog not working on Raspberry Pi 4

Vidar Berg — Fri, 03 Dec 2021 08:03:26 GMT

Sorry, I didn't mean to include pip in the command. Should have been python3 setup.py install --user. And the '--user' argument should be reduntant as you run it in venv.

Try:

$ python3 setup.py install

RE: pynrfjprog not working on Raspberry Pi 4

Martí — Fri, 03 Dec 2021 07:19:40 GMT

So, I did:

pi@raspberrypi:~/Downloads/nrf-command-line-tools-10.15.1_linux-armhf $ sudo dpkg -i JLink_Linux_V758b_arm.deb
(Reading database ... 114985 files and directories currently installed.)
Preparing to unpack JLink_Linux_V758b_arm.deb ...
Removing /opt/SEGGER/JLink ...
Unpacking jlink (7.582) over (7.582) ...
Setting up jlink (7.582) ...

Then:

pi@raspberrypi:~/Downloads/nrf-command-line-tools-10.15.1_linux-armhf $ sudo dpkg -i nrf-command-line-tools_10.15.1_armhf.deb 
(Reading database ... 114985 files and directories currently installed.)
Preparing to unpack nrf-command-line-tools_10.15.1_armhf.deb ...
Unpacking nrf-command-line-tools (10.15.1) over (10.15.1) ...
Setting up nrf-command-line-tools (10.15.1) ...

I switched into the venv, uninstalled pynrfjprog.

Then I cd (productionVenv) pi@raspberrypi:~/Downloads/nrf-command-line-tools-10.15.1_linux-armhf/nrf-command-line-tools/python $

And ran:

python3 -m pip setup.py install --user

And got:

(productionVenv) pi@raspberrypi:~/Downloads/nrf-command-line-tools-10.15.1_linux-armhf/nrf-command-line-tools/python $ python3 -m pip setup.py install --user
ERROR: unknown command "setup.py"

And just so that it's clear:

(productionVenv) pi@raspberrypi:~/Downloads/nrf-command-line-tools-10.15.1_linux-armhf/nrf-command-line-tools/python $ ls
build  cmake_install.cmake  __init__.py  MANIFEST.in  pynrfjprog  pynrfjprog.egg-info  README.md  setup.cfg  setup.py

RE: pynrfjprog not working on Raspberry Pi 4

Vidar Berg — Thu, 02 Dec 2021 14:38:31 GMT

It shouldn't be a problem to run in it a virtual environment. Though I have not verified it here.

Here is the code I used to program my hex file to the board:

from pynrfjprog import HighLevel 

with HighLevel.API() as api:
    snrs = api.get_connected_probes()
    print(snrs)

    # To program J-Link probe at snr <snr>:
    with HighLevel.DebugProbe(api,683800344) as probe:
        probe.program("ble_app_uart_pca10056_s140.hex")

RE: pynrfjprog not working on Raspberry Pi 4

Martí — Thu, 02 Dec 2021 14:35:13 GMT

I will give it a try.

Maybe the problem is that I'm running everything under a Python Virtual Enviorment?

RE: pynrfjprog not working on Raspberry Pi 4

Vidar Berg — Thu, 02 Dec 2021 14:22:26 GMT

Hi,

I tested with a Pi4 here, and both nrfjprog and pynrfjprog worked. Maybe the python installation didn't pull in the correct libraries in your case?

This is what I did:

1. Downloaded the zip

2. Installed the jlink package first with sudo dpkg -i <jlink package>.deb

3. Then the command line tools package using the same command as in step 2.

4. Extracted the nrf-command-line-tools tarball then cd'ed to /nrf-command-line-tools-10.15.1_linux-armhf/nrf-command-line-tools/python and ran the setup script with this command: python3 -m pip setup.py install --user

I suggest you try to uninstall the current pynrfjprog package and then try to install it like I did in step 4. Hope this helps.

Best regards,

Vidar