nrf52840 central role overnight crashes

RE: nrf52840 central role overnight crashes

spencersmith — Thu, 29 Aug 2024 17:57:08 GMT

Yes have tried multiple nRF52840 boards.

Please close this ticket. We are moving forward with S140 v7.3.0 regardless. I will open something new with new information if continue to see SD assertions.

RE: nrf52840 central role overnight crashes

Sigurd — Fri, 23 Aug 2024 18:59:35 GMT

[quote user="spencersmith"]Do you expect the 0x14c24 assertion to also be present in S140 v7.3.0? Would it just move to a different address?[/quote]

It will most likely move the PC value.

[quote user="spencersmith"]30ms scan window at the same interval as the connection interval of 200ms. 1Mbps no extended. scanner never stops even after hitting capacity. custom service not using sdk examples.[/quote]

Thanks for this info, we will try to reproduce the issue based on this.

To rule out any HW issue on this specific device, have you tested this on several nRF52840 central devices?

RE: nrf52840 central role overnight crashes

spencersmith — Thu, 22 Aug 2024 13:38:40 GMT

pc 0x14c24 was for S140 v7.2.0. Thought things had switched to S140 v7.3.0 but didn't. Now doing a SD version check when the application boots up to confirm. Haven't seen any resets now after making sure v7.3.0 is being used. Still need to get more runtime to know for sure.

Do you expect the 0x14c24 assertion to also be present in S140 v7.3.0? Would it just move to a different address?

30ms scan window at the same interval as the connection interval of 200ms. 1Mbps no extended. scanner never stops even after hitting capacity. custom service not using sdk examples.

RE: nrf52840 central role overnight crashes

Sigurd — Fri, 16 Aug 2024 14:11:41 GMT

Hi!

Are you also running scanner while managing 16 connections, or start scanning when a link is lost?

Edit: In order to reproduce this, we would also like some more information about your test-setup, e.g. what connection interval, latency, scan/ext-scan interval/window, etc. you are using, and if you are using any nRF5-SDK examples in your test ?

RE: nrf52840 central role overnight crashes

Sigurd — Thu, 15 Aug 2024 08:21:27 GMT

[quote user="spencersmith"]In process of migrating from S140 v7.2.0 to v7.3.0. Thought this should be v7.3.0 but will double check. Have seen this same pc address several times.[/quote]

Thanks for this info. 14c24 is a valid assert on S140 v7.2.0, so it must have been that version you are using then. I'm looking into more information on this assert now.

RE: nrf52840 central role overnight crashes

spencersmith — Tue, 13 Aug 2024 14:45:27 GMT

In process of migrating from S140 v7.2.0 to v7.3.0. Thought this should be v7.3.0 but will double check. Have seen this same pc address several times.

Trying to catch more of these with NRF_LOG RTT enabled. Hoping this doesn’t change performance and has additional debug information.

Still using the default app_error_fault_handler() in the SDK but might need a custom one. Would it be possible to reset only the SoftDevice instead of resetting everything on a SoftDevice assertion error?

RE: nrf52840 central role overnight crashes

Sigurd — Fri, 09 Aug 2024 08:53:59 GMT

Hi!

With id:0x01 and info:0, this indicates a SoftDevice assert. https://infocenter.nordicsemi.com/topic/com.nordic.infocenter.s140.api.v7.3.0/group___n_r_f___f_a_u_l_t___i_d_s.html?cp=5_7_4_1_2_8_0_2_1#ga3884a419c2f90d294672e79711d009bf

But, I don't see any assert that can happen at pc 0x14c24 on S140 v7.3.0

Are you sure that you are using S140 v7.3.0 ? Also, does the pc value change each time this happens, or is it always 0x14c24 ?