How to get reset reason

RE: How to get reset reason

Håkon Alseth — Wed, 06 Jan 2021 08:33:17 GMT

I am sorry, but I'm not aware of such a function. I could not find any references to such in the logging module API or docs:

https://docs.zephyrproject.org/latest/reference/logging/index.html

Kind regards,

Håkon

RE: How to get reset reason

thomas oggier — Tue, 05 Jan 2021 15:23:56 GMT

Hi, thanks for your help,

Do you know if there is some possibility to get the last log value (print before the reset) when the program starts?

Like read the log_queue?

RE: How to get reset reason

Håkon Alseth — Tue, 05 Jan 2021 13:32:16 GMT

Hi,

We do not have an example that shows storing errors/fault information to flash, unfortunately.

The fault handling in zephyr is described here:

https://devzone.nordicsemi.com/f/nordic-q-a/54899/zephyr-recommended-unexpected-exception-handling-method

The zephyr fatal docs can be found here:

https://docs.zephyrproject.org/latest/reference/kernel/other/fatal.html

Note that since you're using nrf9160, you have two regions. Secure and non-secure. The type of fault will determine which region you end up in, for instance a hardfault will end up in the secure domain.

Kind regards,

Håkon