how can i integrate nrfutil, for secure DFU, on a linux (yokto) environment written in js

[ziv123]

hello Nordic

i have s SOM which i want to use nrfutil in it for FDU via UART of an application i have on nrf52832, s132 v7.0.1

i have the bootloader flashed with the first version of the app on the nrf52832 side

i wonder how can i use the nrfutil in the SOM application

the SOM is running on linux (yokto for creating) and code is written in js cause the app gui is running on a web page

any help will be appreciated

p.s. i co worker who started working on this said something about a missing ble library but was not clear on that

best regards

Ziv

[Sigurd]

Hi,

We have a Javascript implementation of the Nordic DFU protocol over serial here: https://github.com/NordicSemiconductor/pc-nrf-dfu-js

[ziv123]

hi Sigurd

thanks,

i saw there was a js app but i wasn't sure.. if i used nrfutil on the FW side to flash the bootloader and the app to the FW

does the pc-nrf-dfu-js acts the same as the using this command:

nrfutil dfu serial -pkg package.zip -p /dev/tty.usbXXX

??

best regards
Ziv

[Sigurd]

For pc-nrf-dfu-js, I believe it's more similar to nrfutil dfu usb-serial

[ziv123]

i am sorry but i did not understand your answer

my SOM app is running on linux, written in js is supposed to update the FW VIA uart connection between the som and the FW

FW - nrf52832, s132 v7.0.1 with nrfutil tool for flashing the bootloader ( from sdk 16.0 example -> secure_bootloader_uart_mbr_pca10040)  and my app (based on central ble_blinky example).

will the pc-nrf-dfu-js work fine with a FW side flashed with nrfutil ?

best regards

Ziv 

[Sigurd]

Unfortunately, it looks like the pc-nrf-dfu-js is only for USB bootloader, and not UART.

We don't have a javascript implementation of nrfutil. Sorry for the inconvenience.

[ziv123]

hi Sigurd

so what is the right way to integrate the nrfutil python sorce in a js application running on linux because on first try it seems there are some ble libraries missing 

[Sigurd]

ziv123 said:

to integrate the nrfutil python sorce in a js application running on linux

 I have not tried that before.

ziv123 said:

on first try it seems there are some ble libraries missing 

nrfutil uses pc-ble-driver-py for BLE functionality. Maybe you are missing that. You can find pc-ble-driver-py here: https://github.com/NordicSemiconductor/pc-ble-driver-py

[ziv123]

ok thanks i will check 

but just curios .. why do i need pc-ble-driver if i am to use uart (serial) to preform the DFU ? 

best regards

Ziv

[Sigurd]

ziv123 said:

but just curios .. why do i need pc-ble-driver if i am to use uart (serial) to preform the DFU ? 

 nrfutil can by default be used for both BLE and serial DFU, so most likely nrfutil tries to import the BLE driver. If you are able to remove this dependency in nrfutil, so that only serial DFU is supported, then the BLE driver should not be needed. But it might be easier to just import the BLE driver.