restarting in application mode after flashing bootloader

RE: restarting in application mode after flashing bootloader

Rune Holmgren — Wed, 04 Apr 2018 14:40:07 GMT

I can't spot any reason bootloader-version 0 shouldn't work, but if 1 works for you I guess you might just use that. If you want to have a look at why 0 doesn't work in your setup you might want to try debugging the bootloader and see where it runs into the issue.

Best regards,
Rune Holmgren

RE: restarting in application mode after flashing bootloader

Mickael Marty — Wed, 04 Apr 2018 11:35:05 GMT

Thank you.

I modified the line to

%nrfutil% settings generate --family NRF52 --application %pathToApp% --application-version 1 --bootloader-version 1 --bl-settings-version 1 %pathToSettings%

and it works

But i needed to modify application version and bootloader version from 0 to 1. Any idea why?

RE: restarting in application mode after flashing bootloader

Rune Holmgren — Wed, 04 Apr 2018 11:24:51 GMT

Hi,

The application is not launched because the "nrfutil settings generate" command is not correctly set with all necessary flags.

Have a look at the nrfutil documentation here to see explanations and an example. You are at the very least missing a --application flag. Without this, the settings page is not going to contain a valid checksum for the application. It's also a bad idea to set "--bootloader-version" to a SoftDevice FW ID (It would work, but you shouldn't tie bootloader version to the SoftDevice FW ID).

Best regards,
Rune Holmgren