I'm blocked trying to get an Nrf52 application developed under v1.3.0 SDK work with FOTA.
My application is working fine. FYI, its on custom hardware derived from nrf52832_mdk board definition, and the lbs sample.
Now to add FOTA capability. No buttons or display, so buttonless.
I followed the instructions from here,
and I end up with an application that has the DFU characteristic advertised, and nrf connect for mobile and connects to, for DFU. I rebuild an application and try to upload it via NRF Connect, and after a short time of "validating app" on the screen, it reverts back with no error message.
Goggling suggests there is some bug with page alignment fixed mid last year. So I try to copy my application to SDK v1.4.2, and I get a raft of build errors, which cannot be navigated to easily in the IDE. Even the previously supported types like u8_t are no longer valid!
Does anyone have any suggestions? I've used buttonless FOTA on a product on the previous NRF5 SDK with no issues, I'd rather not abandon this mess and go back.
Thank you. This is puzzling, to be honest. Would it be possible to provide your example that reproduce this on a DK, with instructions on how to reproduce? That way I can debug on my side as well…
I will recreate that set-up and provide the information.
Can you provide me with an existing example of creating a FOTA build, based on the nrf52832? I presume this has been tested. I could then use that as the basis for working out my own settings.
There must be a description somewhere of "here are the config setting / dts memory settings to build FOTA images". I have probably just set some setting incorrectly.
Thank you. This is puzzling, to be honest. Would it be possible to provide your example that reproduce this on a DK, with instructions on how to reproduce? That way I can debug on my side as well. You can create a private ticket and refer to this one if you do not want to share the code in public.
Mike Hibbett said:Can you provide me with an existing example of creating a FOTA build, based on the nrf52832? I presume this has been tested. I could then use that as the basis for working out my own settings.
Regarding the question about an existing FOTA example that is present in the nRF Connect SDK. I understand you are using NCS 1.3.0, and I just verified that the example works there. You can use it like this:
west build -b nrf52dk_nrf52832 . -- -DOVERLAY_CONFIG=overlay-bt.conf
That worked, with only a small modification!
My modification was changing the board's Kconfig file, setting DCDC to "n", as my custom board does not have the external DCDC converter circuit, as I dont need it.
My issue was that the smp_svr build instructions, on the link below, include a step (signing the image) that simply fails. So I never proceeded. It did not state that the failing step was not required.
Great, thanks for that, I can now work from your build instructions to integrate FOTA into my existing application.
I am glad to hear it works. Regarding signing the smp_svr sample documentation does not take into account the work done by the partition manager script that is part of NCS which handles signing for you (using default key when nothing is specified), so it is not entirely accurate in the NCS context.