Manually start the nRF5 802154 radio

[Tristen]

Is there a way to manually initialize the nRF5 802154 radio?. I am using an external NOR flash LittleFS partition for data and the nRF5 802154 radio driver keeps complaining about the mount point not being found. For boot speed reasons, I manually mount the FS later. Even if I used automount, the 802154 driver still gets initialized before the filesystem so this is still a problem. Ideally I would like to be able to mount LittleFS and then enable the radio from my application (post boot).

[Edvin]

Tristen said:

Here is the Zephyr log at boot:

So you are using Openthread. That answers one of the questions.

The lines "fs: mount point not found!!" are printed from fs.c in zephyr\subsys\fs\fs.c

There are 7 functions that can print this, as far as I can see. It is fs_open(), fs_opendir(), fs_mkdir(), fs_unlink(), fs_rename(), fs_stat(), and fs_statvfs().

Tristen said:

My project has preparatory code so I'll share the kconfig and board files instead.

Perhaps you can modify one of the samples from the SDK to use your Kconfig and board files to reproduce the issue, then send it to me, then?

I am not saying that I do not believe you, but it will be quicker this way. Did you test this in a sample that is not using the openthread stack, and perhaps not the radio at all? Does the issue not occur there?

BR,

Edvin

[Tristen]

I found another way around this and created a separate partition just for settings and added to my dts:

chosen {
...
    zephyr,settings-partition = &settings_partition;
...

This partition is in NVM so the issue is completely circumvented. I no longer see the mount errors now that the settings subsystem is no longer relying on the filesystem.