Python 64 bit issue with nrfjprog dll

[python_asker]

Hello,

I have two version of Python 3.6 installed: 32 and 64 bit (Windows 10) Recently i installed nRF5x command line tools (9.7.2) and pynrfjprog 9.7.1

For Python 64 bit during creation of pynrjprog API.API("NRF52") object i got:

RuntimeError: Could not load the NRFJPROG DLL: '[WinError 193]

For Python 32 bit it works fine

Anyone has some idea what can help?

[Simen August Tinderholt]

Hi! Did you install pynrfjprog through pip, or by downloading from github?

Could you check the folder "Python 64bit install folder"\Lib\site-packages\pynrfjprog\win_64bit_dll and see if the required dlls are there? If you dwonloaded pynrfjprog manually, just check wherever you installed pynrfjprog, it should have the same folder structure.

It should contain the following files:

• nrfjprog.dll
• highlevelnrfjprog.dll
• jlinkarm_nrf51_nrfjprog.dll
• jlinkarm_nrf52_nrfjprog.dll
• jlinkarm_unknown_nrfjprog.dll

[python_asker]

Both (32 and 64 Python's) win_64bit_dll folders consists of: highlevelnrfjprog.dll jlinkarm_nrf51_nrfjprog.dll jlinkarm_nrf52_nrfjprog.dll jlinkarm_unknown_nrfjprog.dll nrfjprog.dll

[Simen August Tinderholt]

Ok, good. How did you install it? pip or github?

[python_asker]

Both via pip

[Simen August Tinderholt]

Strange. Can you check if you have a 32bit version of windows? This page has a guide on how to check it.