Segger overlay corrupted?

[Tron]

I have to folders with different versions of the nrf library installed (1.0.0 and 1.1.0-rcsomething) The dts and overlay files are identical in the 2 folders (nrf9160_pca10090ns.dts, common.dts and my project overlay file). In one project the overlaying prodess goes well: 

-- Loading <version1.0>/ncs/zephyr/boards/arm/nrf9160_pca10090/nrf9160_pca10090ns.dts as base
-- Overlaying <version1.0>/ncs/zephyr/dts/common/common.dts
-- Overlaying <version1-project>/nrf9160_pca10090ns.overlay
Device tree configuration written to <version-1-project>/build_02/zephyr/include/generated/generated_dts_board.conf

Ie, the loading of the project goes well

When I do loading of the <1.1-folder>-version, things crash: 

Error: nrf9160_pca10090ns.dts.pre.tmp:551.3-4 syntax error
FATAL ERROR: Unable to parse input tree
CMake Error at <version-1.1>/ncs/zephyr/cmake/dts.cmake:162 (message):
command failed with return code: 1
Call Stack (most recent call first):
<version-1.1>/ncs/zephyr/cmake/app/boilerplate.cmake:566 (include)
CMakeLists.txt:9 (include)

-- Configuring incomplete, errors occurred!
Project load failed
Reported error: solution load command failed (1)

I've changed the Zephyr base and board direcory in Segger as well

Any ideas where to look?

[Simon]

I manage to build the GPS sample with NCS v1.1.0 and v1.0.0. What version of NCS are you using? Did you remember the ns extension when building the project? 

west build -b nrf9160_pca10090ns

If that doesn't solve your issues, try running these commands:

cd <sourcecode_root>\ncs\nrf
git checkout master
git pull
git checkout v1.0.0
west update

cd <sourcecode_root>\ncs
pip3 install -r zephyr\scripts\requirements.txt
pip3 install -r nrf\scripts\requirements.txt
pip3 install -r mcuboot\scripts\requirements.txt

Then try to build the GPS project

Could you provide the error log you got?

Best regards,

Simon

[Tron]

It works using cli, and then I'm able to open the project in Segger. Thanks a lot. Your article help me understand the toolchain much better. 

A bit of critisism, though. The dts and overlay files are hardware specific, and very few will use the DK for developing, other than for demo and educational purposes. Modifying the overlay files in the ncs folders to suit custom hardware makes the whole thing very brittle. 

[Simon]

If you are planning to use a custom board, then you could follow this guide to modify the board folder. I appreciate the feedback, but do you know other ways of going about this (using a custom board)?

Best regards,

Simon

[Tron]

I already have my custom board. The recommended approach from your colleagues was to edit the files in the board folder, and now I don't remember which ffiles I edited. Using the existing project folder is now out of the question,it is fubar after checking out branches in all directions, with files modified by me

[Simon]

You should never modify the files in the folder ncs/zephyr/boards/arm/nrf9160_pca10090, did somebody tell you to do this? Instead, you should create a new folder in ncs/zephyr/boards/arm/nrf9160_pca10090 and follow this guide.

A suggestion to find the modifications you have done to the folder ncs/zephyr/boards/arm/nrf9160_pca10090 is to check out the differences between your Zephyr repo and the original Zephyr repo (NCS downstream). Check out this link on how to do it.

Best regards,

Simon