How to create combined image after DFU ?

RE: How to create combined image after DFU ?

Tim Adu — Wed, 23 Oct 2019 20:33:59 GMT

This ticket is closed. You should probably make a new ticket to improve your chances of getting a quick respose :) I'd be happy to help. I managed to figure out how to make mine work.

RE: How to create combined image after DFU ?

Spirit — Wed, 23 Oct 2019 19:58:29 GMT

Nordic guys!

1+ for this question.

RE: How to create combined image after DFU ?

Tim Adu — Fri, 18 Oct 2019 10:50:10 GMT

Would this correspond to setting

 uint8_t m_dfu_settings_buffer[BOOTLOADER_SETTINGS_PAGE_SIZE]
        __attribute__((section(".bootloader_settings_page")))
        __attribute__((used))

uint8_t m_dfu_settings_buffer[BOOTLOADER_SETTINGS_PAGE_SIZE]
        __attribute__((section(".bootloader_settings_page")))
        __attribute__((used)) = {NRF_DFU_BANK_VALID_APP};

in nrf_dfu_settings.c? (I'm using SDK 15.2.0 and facing the exact same problem)

-Tim

RE: How to create combined image after DFU ?

bjorn-spockeli — Wed, 13 Apr 2016 06:39:45 GMT

In order to flash a combined SoftDevice, Bootloader and Application, where the device jumps to the application without having to perform a OTA update, you have to set the BANK_VALID_APP flag in bootloader_settings.c, i.e. change the line

uint8_t  m_boot_settings[CODE_PAGE_SIZE]    __attribute__((at(BOOTLOADER_SETTINGS_ADDRESS))) __attribute__((used));

to the following

uint8_t  m_boot_settings[CODE_PAGE_SIZE]    __attribute__((at(BOOTLOADER_SETTINGS_ADDRESS))) __attribute__((used)) = {BANK_VALID_APP};

-Bjørn

RE: How to create combined image after DFU ?

sing — Tue, 12 Apr 2016 17:03:04 GMT

Yes. I think so. And I wonder if there may be more settings need to be accounted for. If updating the settings is complicated, an alternative way would be modifying the bootloader to by-pass the app checking.

RE: How to create combined image after DFU ?

bjorn-spockeli — Tue, 12 Apr 2016 09:14:11 GMT

Is the custom settings you are referring to setting the BANK_VALID_APP flag on the bootloader setttings flash page?