what causes a AIRCR.SYSRESETREQ reset

RE: what causes a AIRCR.SYSRESETREQ reset

Charlie — Thu, 12 Dec 2024 10:28:19 GMT

Hi,

It is weired. Can you open the link? RE: 9160 Resetting and see the following reply from another developer in the thread:

It appears that a 3rd party library we are using is causing the reset. They are investigating this now.

I have tried setting CONFIG_REBOOT=n and it still resets and doesn't go through the fatal error handler. I'm wondering if it ends up being a NULL pointer exception because we are running non-secure and I read that non-secure doesn't properly catch NULL pointer exceptions.

I am unsure which third-party library he is using that could be causing this issue. For your reference, you might want to check the third-party libraries included in your setup.

This means that there could be different high-level reasons causing the reset. You will need to identify how to consistently reproduce this issue with your product. Please share more evidence and details if you’d like us to assist in analyzing the root cause.

Best regards,

Charlie

RE: what causes a AIRCR.SYSRESETREQ reset

Timothy — Wed, 11 Dec 2024 13:13:25 GMT

Charlie

1. it is basically a reproduced nRF9160 board so it is custom hardware.

2. it is based on asset_trackerV2 SDK 2.5.0

I am not sure if we could reproduce this on a DK board. It would be difficult to share logs. This occurs at customer locations with no access to logs.

I do not understand "Just find a discussion on AIRCR.SYSRESETREQ caused reset, 3rd party library is causing the reset in this ticket.". where do I find the discussion and what 3rd party library is causing the rest and why?

RE: what causes a AIRCR.SYSRESETREQ reset

Charlie — Wed, 11 Dec 2024 10:13:29 GMT

(2) 9160 Resetting - Nordic Q&A - Nordic DevZone - Nordic DevZone

Just find a discussion on AIRCR.SYSRESETREQ caused reset, 3rd party library is causing the reset in this ticket.

RE: what causes a AIRCR.SYSRESETREQ reset

Charlie — Wed, 11 Dec 2024 10:09:57 GMT

Hi,

Thanks for checking with us.

Assuming I have zero knowledge about your product, could you provide a brief introduction to your setup? Specifically:

Hardware Setup: Are you using a custom board or the original nRF DK? if this is a custom board, have you request any hw review before? share the ticket link if you have.
Software Versions: Which versions of NCS and MFW are you using? are you using unmofied assert_trackerv2? what is your builiding configuration?

Additionally:

Can you reproduce this issue on the original DK boards?
Could you try collecting and sharing logs and a modem trace from the device exhibiting the issue?

This information will help us better understand the problem and assist you further.

Best regards,

Charlie

RE: what causes a AIRCR.SYSRESETREQ reset

Timothy — Tue, 10 Dec 2024 15:01:17 GMT

I also see AIRCR.SYSRESETREQ when I do a FOTA download and update. Flash from VS Code, software reset, and FOTA are all OK and expected due to human intervention. It is the random reset that is cause for concern since no human initiated it.

RE: what causes a AIRCR.SYSRESETREQ reset

Timothy — Tue, 10 Dec 2024 15:01:13 GMT