How to compile pc_ble_driver_py against ARM target?

[marco c.]

Hi there,

I'm working on an ARM based  system running buildroot 2019.02.4.

The mikrocontroller is connected to a nRF52840 via USB and I want to use nrfutil to update the nRF's firmware.

Now I've problems compiling and installing the package pc-ble-driver-py. The package seems to be usable only with X86-64 systems.

When compiling the package I get the following error message.

running install_scripts
ERROR: architecture for "/usr/lib/python2.7/site-packages/pc_ble_driver_py/lib/linux/x86_64/_pc_ble_driver_sd_api_v2.so" is "Advanced Micro Devices X86-64", should be "ARM"
ERROR: architecture for "/usr/lib/python2.7/site-packages/pc_ble_driver_py/lib/linux/x86_64/libpc_ble_driver_shared_sd_api_v3.so" is "Advanced Micro Devices X86-64", should be "ARM"
ERROR: architecture for "/usr/lib/python2.7/site-packages/pc_ble_driver_py/lib/linux/x86_64/libpc_ble_driver_shared_sd_api_v2.so" is "Advanced Micro Devices X86-64", should be "ARM"
ERROR: architecture for "/usr/lib/python2.7/site-packages/pc_ble_driver_py/lib/linux/x86_64/_pc_ble_driver_sd_api_v3.so" is "Advanced Micro Devices X86-64", should be "ARM"

It seems that the package has to be cross-compiled agains the ARM target.

But i don't now how to do this.

This topic has been discussed here before. But with no usable result.

Are there any findings regarding the topic?

Any idea how to cross-compile the package against ARM?

Thank you in advance,

Marco

[Vidar Berg]

Hi Marco,

The pc-ble-driver is mainly released and tested for x86, but it should be possible to cross compile or compile it natively for ARM. It may actually be easier to compile it natively if it is possible on your system. 

Which architecture are you using? If it's the same as Beaglebone black you can try uing libraries I uploaded here (replace with existing libraries in /usr/lib/python2.7/site-packages/pc_ble_driver_py/lib/linux/x86_64): https://devzone.nordicsemi.com/f/nordic-q-a/38739/nrfutil-dfu-over-ble-works-the-first-time-and-then-fails-with-error-code-13/151969#151969 

Best regards,

Vidar