Noob question to compile my first example

[Thierry_Labsterium]

Hello,

Working on MAC. High Sierra.

got a 52840 dongle (but also a thingy and a devkit following the latest conference)

Trying to start at the beginning and build the blink project.

Starting to follow the tutorial on the dongle nRF52840

https://devzone.nordicsemi.com/tutorials/b/getting-started/posts/nrf52840-dongle-programming-tutorial

Installed Segger, all latest sdk available as nothing indicates which one I need.

Try new a new nordic project compile : Good

try adding the code from blink : cannot find nerf_delay.h (ok some library path missing but I know nothing about segger)

after some search

https://infocenter.nordicsemi.com/index.jsp?topic=%2Fcom.nordic.infocenter.gs%2Fdita%2Fgs%2Fsw_development.html&cp=1_1

so importing a file like said I get a new error : core_cm4.h no such file or directory

I also tried to find some makefile and after some time tried and got the following error :

make: /usr/local/gcc-arm-none-eabi-7-2018-q2-update/bin/arm-none-eabi-gcc: Command not found

Cannot find: '/usr/local/gcc-arm-none-eabi-7-2018-q2-update/bin/arm-none-eabi-gcc'.

So I found the files Makefile.common and makefile.posix to modify them and

 make

Configured with: --prefix=/Library/Developer/CommandLineTools/usr --with-gxx-include-dir=/usr/include/c++/4.2.1

mkdir _build

cd _build && mkdir nrf52840_xxaa

Assembling file: gcc_startup_nrf52840.S

clang: warning: argument unused during compilation: '-mcpu=cortex-m4' [-Wunused-command-line-argument]

clang: warning: argument unused during compilation: '-mthumb' [-Wunused-command-line-argument]

clang: warning: argument unused during compilation: '-mabi=aapcs' [-Wunused-command-line-argument]

clang: warning: argument unused during compilation: '-mfloat-abi=hard' [-Wunused-command-line-argument]

clang: warning: argument unused during compilation: '-mfpu=fpv4-sp-d16' [-Wunused-command-line-argument]

../../../../../../modules/nrfx/mdk/gcc_startup_nrf52840.S:23:5: error: unknown directive

    .syntax unified

    ^

../../../../../../modules/nrfx/mdk/gcc_startup_nrf52840.S:24:5: error: unknown directive

    .arch armv7e-m

 

So here I am after a few hours not even able to begin blinking anything and nothing in the forum about that as far as I see.

Any tips, full working tutorial to follow?

Thanks

[jonappleseed]

Segger can be a bit picky if your paths are too long. If possible try putting the SDKs in root.

[Jared]

Hi,

Please see our guide on how to import external files. You should not need to use makefiles if you use Segger Embedded Studio. Also, if you're going to use gcc and makefiles then you would have to add the toolchain path to the SDK. See this guide for more information regarding developing with GCC.

Best regards

Jared 

[Thierry_Labsterium]

Hello,

Following your recommandations I finally found the following video from nordic which are really helpfull starting up:

https://www.youtube.com/playlist?list=PLx_tBuQ_KSqGHmzdEL2GWEOeix-S5rgTV

I discovered then that I was missing JLINK it seems :

https://www.segger.com/downloads/jlink/#J-LinkSoftwareAndDocumentationPack

And that I did not follow the starting tutorial to connect the card:

https://www.nordicsemi.com/Software-and-Tools/Development-Kits/nRF52840-DK/GetStarted

By the way I needed to switch the nRF power source to VDD in order to have the card working.

So for now I was able to compile and transfer the example of the video (I don't know what it does yet but I will follow on the videos which seem to have a lot of usefull content)

So far so good and I hope that my reply will help future noob like me to start.

Regards,

Thierry