The project file ncs/applications/asset_tracker/build_nrf52_pca10040/asset_tracker.emProject is invalid

[baklengc]

Hi:

I am having trouble just trying to build the asset_tracker_image.

I followed the instruction on setting the nRF Connect. (nRF Connect v3.2.0). However I got the following errors. I need help. The transcript output from the Segger Embedded Studio is as follows:

Loading solution asset_tracker.emProject
Executing load commands
cmake -GNinja -DBOARD=nrf52_pca10040 -DBOARD_DIR=C:/Users/baklengc/ncs/zephyr/boards/arm/nrf52_pca10040 -DZEPHYR_TOOLCHAIN_VARIANT=gnuarmemb -DGNUARMEMB_TOOLCHAIN_PATH=C:/gnuarmemb/7.2018-q2-update -BC:/Users/baklengc/ncs/nrf/applications/asset_tracker/build_nrf52_pca10040 -HC:/Users/baklengc/ncs/nrf/applications/asset_tracker -DEXTRA_KCONFIG_TARGETS=menuconfig_ses -DEXTRA_KCONFIG_TARGET_COMMAND_FOR_menuconfig_ses=C:/Users/baklengc/EmbeddedStudio_ARM_Nordic_v420a_win_x64/arm_segger_embedded_studio_v420a_win_x64_nordic/html/configure_nordic_project_menuconfig.py
-- Using application from 'C:/Users/baklengc/ncs/nrf/applications/asset_tracker'
Zephyr version: 2.0.99
CMake Warning at C:/Users/baklengc/ncs/zephyr/cmake/app/boilerplate.cmake:195 (message):
-- Selected BOARD nrf52810_pca10040
  The build directory must be cleaned pristinely when changing boards
Call Stack (most recent call first):
  CMakeLists.txt:11 (include)

-- Found west: C:/Python38/Scripts/west.exe (found suitable version "0.6.3", minimum required is "0.6.0")
-- Cache files will be written to: C:\Users\baklengc\AppData\Local/.cache/zephyr
USING OUT OF TREE BOARD
CMake Error at C:/Users/baklengc/ncs/zephyr/cmake/kconfig.cmake:168 (message):
  File not found:
  C:/Users/baklengc/ncs/zephyr/boards/arm/nrf52_pca10040/nrf52810_pca10040_defconfig
Call Stack (most recent call first):
  C:/Users/baklengc/ncs/zephyr/cmake/app/boilerplate.cmake:567 (include)
  CMakeLists.txt:11 (include)

-- Configuring incomplete, errors occurred!

[Didrik Rokhaug]

Hi.

When changing board, you have to do a "pristine build", i.e., you must delete all the files in the build directory.

If you build with west, you can do this automatically by appending the -p flag. If you are using SES, you must check the "Clean Build directory" checkbox when loading the project.

However, the asset_tracker application is made for the nRF9160, and will not work for an nRF52.

This is also true for the nRF Connect SDK in general. At the moment, the only chip supported by NCS is the nRF91. Is there a specific reason for why you try to use NCS and not the nRF5 SDK with an nRF52?

Best regards,

Didrik

[baklengc]

Hi :  I need BLE 5.1 stack. I have a hard time figuring the documentations . If I  follow the instructions on the following link, will that be the right thing to do.

https://infocenter.nordicsemi.com/index.jsp?topic=%2Fstruct_sdk%2Fstruct%2Fsdk_nrf5_latest.html&cp=5_0

Are any of the links to the nRF52 series is applicable to me ?

Or does it have to say nRF52832 next to the nRF52 link ?

[Didrik Rokhaug]

The nRF5 SDK works for all devices in the nRF5 series (nRF52832, nRF52840, etc.). So when the documentation talks about an nRF5 or nRF52 device, it should work for all devices in that series.

You can download the nRF5 SDK here: https://www.nordicsemi.com/Software-and-Tools/Software/nRF5-SDK#Downloads

Unzip the folder (preferably close to the root of the file system, to avoid long path names). You can then navigate to the examples folder, pick an example, then select the board (pca10040 for an nRF52 DK), select the preferred SoftDevice, the preferred toolchain (ses for Segger Embedded Studio), and finally open the project (.emProject for SES).