Secure Bootloader Version from App

RE: Secure Bootloader Version from App

Roiger — Mon, 13 Jul 2020 12:37:47 GMT

Very helpful Sigurd! Many Thanks!

RE: Secure Bootloader Version from App

Sigurd — Mon, 13 Jul 2020 10:16:25 GMT

[quote user="Roiger"]Regarding the settings page- is this the settings file that is generated (in my case, using nrfutil) before the first programming of the device?[/quote]

Yes.

[quote user="Roiger"]If so, bootloader version is given using a flag there- it wont necessarily be the "true" bootloader version (according to the C code).[/quote]

The settings page - bootloader version field will be updated when you do a DFU.

I think you can read the bootloader version from the app itself like this:

     nrf_dfu_settings_t my_dfu_settings;
     memcpy(&my_dfu_settings, (uint32_t *)BOOTLOADER_SETTINGS_ADDRESS, sizeof(nrf_dfu_settings_t)); 

     uint32_t my_bootloader_version = my_dfu_settings.bootloader_version;

RE: Secure Bootloader Version from App

Roiger — Tue, 07 Jul 2020 12:17:15 GMT

Regarding the settings page- is this the settings file that is generated (in my case, using nrfutil) before the first programming of the device?

If so, bootloader version is given using a flag there- it wont necessarily be the "true" bootloader version (according to the C code).

Many thanks for the quick reply!

Roi

RE: Secure Bootloader Version from App

run_ar — Tue, 07 Jul 2020 09:59:56 GMT

Hi,

The bootloader version can be fetched from the Bootloader Settings page

If you are using buttonless DFU you can probably add a custom opp code to the control point characteristic and use that to read the version. ble_dfu_buttonless_op_code_t