Zephyr-sdk-install-and-config

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Keywords:  Zephyr SDK installation :: Nordic nRF SDK installation :: JLinkARM installations

^ Overview

This wiki page intended to capture the various Nordic Semi toolchain elements which support the complete build, flash programming and Segger based debugging of Nordic nRF, Zephyr based applications. I quick list of tools to install:


  • all the Linux, Python, west, and sdk-nrf utilities and code base
  • gnuarmemb toolchain from GNU GCC for ARM downloads page
  • Segger JLink drivers from Segger's web site


A key finding on 2021-Sept-27 is that the gnuarmemb toolchain is for some reason necessary to call from Segger for compiling nRF Connect SDK projects. At the command line using `west`, both Zephyr's ARM compiler and the GNU ARM compiler (Zephyr's is GNU but just branded) succeed in building nRF Zephyr based apps. Attempts to call `/opt/zephyr-sdk-0.13.0/arm-zephyr-eabi/bin/arm-zephyr-eabi-gcc` cause a strange build error "offsets.c.obj does not exist".


^ Nordic Toolchain Install Closely Follows Zephyr Tools

Steps to installing Zephyr SDK and prerequisites in the context of NordicSemi's forked branch of Zephyr, and specifically details on `west init`, `west zephyr-export` and `west update`:

Instructions to install Zephyr SDK 0.13.0, note this is a Zephyr website page:


Back to Nordic, their instructions for installing Segger Embedded Studio for Nordic development:

Alternate information page:


Nordic Semi Simon's four part nRF tutorial series:

^ gnuarmemb And JLinkARM installation

The following two links go directly to GNU ARM compiler download page, and to a JLink drivers download page at Segger dot com:


A recent version of GNU ARM gcc Ted finds will build nRF Zephyr based applications at the command line via `west`, but not when called from within Segger IDE Nordic version 5.60. A latest stable pre-compiled ARM gcc from GNU builds both at command line and in Segger:

Table: ARM gcc cross compiler versions and pass/fail build conditions 

                                           command line and `west`     Segger Nordic v5.60
arm-zephyr-eabi-gcc (crosstool-NG) 10.2.0           yes                         no
arm-none-eabi-gcc (GNU Arm) 10.3.1                  yes                        yes

Full compiler version strings:

  • arm-none-eabi-gcc (GNU Arm Embedded Toolchain 10.3-2021.07) 10.3.1 20210621 (release)
  • arm-zephyr-eabi-gcc (crosstool-NG 1.24.0.212_d7da3a9) 10.2.0


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