One Binary image with both Softdevice and our application code

[DBT]

We want to be able to download a firmware image into external flash through multiple paths (wireless or wired -only one path is used at a time) then program that image into the nRF52840 internal flash.

Because of space considerations we want to use BIN (binary format) and for convenience we want to have a single BIN file for both the SoftDevice and our application code.

Is there a way to produce this single binary each time we build using settings in SES (Segger Embedded Studio)?

If not, what is the recommended way for doing it via external batch files (or whatever) called by the build process?

This would be for a windows environment.

[Hung Bui]

Hi Douglas, 

You can compile the application as hex file then use mergehex.exe tool to merge the application with the bootloader hex (mergehex.exe is provided in our command line tools). 

Then you can use hex2bin.exe to convert the merged hex file to be .bin file if you need, but I'm not sure why you need .bin instead of .hex. 

 

You can call mergehex right inside SES. Please follow this guide: 

devzone.nordicsemi.com/.../howto-flash-bootloader-settings-for-dfu-using-ses-at-debug-time

[DBT]

we need BIN instead of HEX in order to save space in the external flash that is holding the firmware image.