Datasheet

Sign the Build with a Version Number

You can prepare the image to be flashed to the device with a mandatory version number and signing details via the

newt create-image command:

And finally you can flash the image via one of two methods:

Flash the Image via a Segger J-Link

With the J-Link connected to the nRF52, run the following command to flash the signed image:

Flash the Image via the Serial Port and newtmgr

For details on how to flash the image over newtmgr using only the serial port (no J-Link required), see Uploading

Application Images with newtmgr (https://adafru.it/yAi).

$ newt build first

Building target targets/first

Compiling repos/apache-mynewt-core/boot/bootutil/src/loader.c

...

Compiling repos/apache-mynewt-core/util/mem/src/mem.c

...

Archiving util_mem.a

Linking [PATH]/bin/targets/first/app/apps/first/first.elf

Target successfully built: targets/first

$ newt create-image first 0.1.5

App image succesfully generated: [PATH]/bin/targets/first/app/apps/first/first.img

This command assumes that you have the Segger J-Link drivers installed on your system, as described in the

Native Installation pages.



$ newt load first

Loading app image into slot 1