Can we perform DFU on NCP?

[NM_Z]

Hi team,

We are using Raytech nrf52840 dongles as NCP connected through USB to RaspPi compute module. We would like to upgrade the NCP application in the field using DFU.

We thought of doing this through Rasp Pi using nrfutil commands but we were unable to do so due to support not available for arm.

Is there a way to upgrade the application on NCP in the filed? If yes, kindly share the details.

Thanks

NM

[NM_Z]

Hi Jorgen

I could proceed further and build the DFU trigger library from OpenThread. Built the OT libraries with

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make -f examples/Makefile-nrf52840 BORDER_AGENT=1 BORDER_ROUTER=1 COAP=1 COMMISSIONER=1 DISABLE_BUILTIN_MBEDTLS=1 DNS_CLIENT=1 DIAGNOSTIC=1 EXTERNAL_HEAP=1 JOINER=1 LINK_RAW=1 MAC_FILTER=1 MTD_NETDIAG=1 SERVICE=1 UDP_FORWARD=1 ECDSA=1 SNTP_CLIENT=1 COAPS=1 DHCP6_SERVER=1 DHCP6_CLIENT=1 USB=1 CHILD_SUPERVISION=1 BOOTLOADER=USB

----

After this copied the libraries from the OT folder to the nrf SDK folder and recompiled the NCP image. I am getting the below errors:

../../../../../../../../external/openthread/lib/nrf52840/gcc/libopenthread-nrf52840-sdk-usb.a(libopenthread_nrf52840_sdk_a-usb-cdc-uart.o): In function `nrf5UartInit':
/home/user/Project/openthread/examples/../examples/platforms/nrf528xx/src/usb-cdc-uart.c:278: undefined reference to `nrf_dfu_trigger_usb_init'
collect2: error: ld returned 1 exit status
../../../../../../../../components/toolchai

How can this be resolved?

Thanks, NM