nRF9160 Zephyr updates

[Jeff Seaman]

Hi

I have tried to pull down the updates for the Zephyr project to for the mqtt_simple example.  when I do a git checkout master and a git pull all goes fine.  but when I try to compile or flash the boards I get errors.

example

C:\sdk\ncs\zephyr\samples\basic\blinky\build>ninja flash
[0/1] Flashing nrf9160_pca10090
C:/Python37/python.exe: can't open file '/sdk/ncs/zephyr/.west/west/src/west/main.py': [Errno 2] No such file or directory
FAILED: zephyr/cmake/flash/CMakeFiles/flash
cmd.exe /C "cd /D C:\sdk\ncs\zephyr\samples\basic\blinky\build && "C:\Program Files\CMake\bin\cmake.exe" -E env PYTHONPATH=/sdk/ncs/zephyr/.west/west/src C:/Python37/python.exe /sdk/ncs/zephyr/.west/west/src/west/main.py "--zephyr-base=C:\sdk\ncs\zephyr\ " flash --skip-rebuild"
ninja: build stopped: subcommand failed.

[Sigurd]

Hi,

We have just merged a pull request that switches the downstream NCS trees to west, see this link.

Please see this page on how to install west. In short, you will need to run:

# Linux
pip3 install --user west

# macOS and Windows
pip3 install west

You should then change into your ncs/folder (the one that contains the zephyr, nrf, mcuboot, and nrfxlib folders) and run:

west init -l nrf/

Once that is done you can run:

 west update

[rkguy]

Does this mean we shouldn't be using cmake and ninja going forward?

[Sigurd]

Hi rkguy,

You can build an application either by using cmake directly or by using west, Zephyr’s meta-tool that is also used to manage the repositories. You can find additional information about west’s build capabilities in Building, Flashing and Debugging.