Crash application after LTE CELL found

RE: Crash application after LTE CELL found

SP — Thu, 19 Oct 2023 13:41:45 GMT

Hi,

[quote userid="77062" url="~/f/nordic-q-a/104783/crash-application-after-lte-cell-found/451195"]Very strange behavior. Could you please collect a modem trace from the device when the issue occurs? That said, do you have e.g. a nRF9160 DK to test with as well? [/quote]

Yes I have already make a trace modem before I wrote the ticket:
devzone.nordicsemi.com/.../trace_2D00_2023_2D00_10_2D00_16T05_2D00_36_2D00_43.524Z.mtrace

Here is the trace of my application not UDP sample. But it's the same issue.

I tried to read this trace but I found nothing !

[quote userid="77062" url="~/f/nordic-q-a/104783/crash-application-after-lte-cell-found/451195"]That said, do you have e.g. a nRF9160 DK to test with as well?[/quote]

I think I will have no issue with nRF9160 DK. The issue is specific to my custom board.
In addition, I received a pre-serie of 50 x devices from my provider and I have 2 x devices with this issue / 10 x prepared !

[quote userid="77062" url="~/f/nordic-q-a/104783/crash-application-after-lte-cell-found/451195"]Our HW people can help reviewing your design, just register a new DevZone ticket and ask for a HW review [/quote]

Yes I'm going to make the ticket.

[quote userid="77062" url="~/f/nordic-q-a/104783/crash-application-after-lte-cell-found/451195"]Is this the only configurations you have done to the UDP sample? [/quote]

Yes in addition to the other parameters.

RE: Crash application after LTE CELL found

Øyvind — Thu, 19 Oct 2023 07:15:48 GMT

Hello,

[quote user="POMIES"]No, I didn't ask to make a review of my board and I would like to do it ! Yes I think I have no problem of compoments poorly soldered.[/quote]

Our HW people can help reviewing your design, just register a new DevZone ticket and ask for a HW review 🙂

[quote user="POMIES"]When the device find a new cell, it reboot ![/quote]

Very strange behavior. Could you please collect a modem trace from the device when the issue occurs? That said, do you have e.g. a nRF9160 DK to test with as well?

[quote user="POMIES"]I tried to use "udp" application and I added CONFIG_RESET_ON_FATAL_ERROR=n, CONFIG_THREAD_NAME=y, CONFIG_ASSERT=y in prj.conf.[/quote]

Is this the only configurations you have done to the UDP sample?

Kind regards,
Øyvind

RE: Crash application after LTE CELL found

SP — Thu, 19 Oct 2023 06:37:39 GMT

Hi,

thanks for your reply.

I tried to use "udp" application and I added CONFIG_RESET_ON_FATAL_ERROR=n, CONFIG_THREAD_NAME=y, CONFIG_ASSERT=y in prj.conf.

You can see below the result :

When the device find a new cell, it reboot !

[quote userid="77062" url="~/f/nordic-q-a/104783/crash-application-after-lte-cell-found/450979"]What makes you think it is related to modem_evt_cell_update? There are sensors enabled after this. To me it seems more of an issue with one of these. [/quote]

No, sensors are enabled right after reset. There is some messages from drivers written before the message "Booting Zephyr OS build".

[quote userid="77062" url="~/f/nordic-q-a/104783/crash-application-after-lte-cell-found/450979"]Did you have a design review of your board? Have you ensured all components are soldered correctly? [/quote]

No, I didn't ask to make a review of my board and I would like to do it ! Yes I think I have no problem of compoments poorly soldered.

RE: Crash application after LTE CELL found

Øyvind — Wed, 18 Oct 2023 08:18:23 GMT

Hello,

[quote user=""]

For finish, I read Case ID: 309798 from devzone and I think it's probebly the same issue.

[/quote]

Did you do as my colleague suggested in this ticket? I.e. add CONFIG_RESET_ON_FATAL_ERROR=n and CONFIG_THREAD_NAME=y to your prj.conf. You could also try adding CONFIG_ASSERT=y. More logs are needed in order to find the root cause of this issue.

[quote user=""]When the application is running, the reset occurs after MODEM_EVT_CELL_UPDATE.[/quote]

What makes you think it is related to modem_evt_cell_update? There are sensors enabled after this. To me it seems more of an issue with one of these.

[quote user=""]The hardware is a custom board.[/quote]

Did you have a design review of your board? Have you ensured all components are soldered correctly?

Kind regards,
Øyvind