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latest dfu example

sruthiraj koodathil

Hi...

Do you know how the " ble_app_hrs -> experimental_s110_with_dfu example" in SDK 7.2.0 examples works? how to switch to DFU and how to do over the air update?

i am using nRF51422 DK,with latest Softdevice v 7.1.0 and sdk 7.2.0, master control panel v 3.8.0.

i have gone through the pdf github.com/.../How to generate the INIT file for DFU.pdf

when am executing this command "nrf.exe dfu genpkg --application nrf51422_xxac.hex --application-version 0xffffffff --softdevice s110_nrf51822_7.1.0_softdevice.hex --dev-type 0xffff --dev-revision 0xffff --sd-req 0x5A myfile.zip" i got an error IOError: [Errno 13] Permission denied: 'myfile.zip' what is the reason for this?

  • 0

    How the example works and how to use it is described here: developer.nordicsemi.com/.../a00066.html

    If you get a permission denied error. Are you sure you have write permission to the folder you are storing the zip file in? Try to copy the nrf.exe (or add the path to the PATH variable) and the .bin file to a folder you have access to, and execute the command there.

  • 0 in reply to Stian Røed Hafskjold

    Thank you stian

    i could zip successfully ,error was due to admin privilege issue .

    i understood the working but, i am not able to switch from NORDIC_HRM to dfu_targ. First i loaded s110_nrf51822_7.1.0_softdevice.hex then nrf51422_xxac_s110.hex by using nrfgo studio.It advertises as NORDIC_HRM and connected in MCP.Then tried to switch from NORDIC_HRM to dfu_targ by writing dfu_control point cccd variable 0x0001 and dfu control point as 0x0104. But nothing is happend... not disconnected ,still advertising as NORDIC_HRM.

    Is that the method am following is correct? or a bootloader hex file is needed ?

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