9160 System crash after CONFIG_DEVICE_POWER_MANAGEMENT is enabled

RE: 9160 System crash after CONFIG_DEVICE_POWER_MANAGEMENT is enabled

Håkon Alseth — Thu, 18 Nov 2021 12:13:35 GMT

Hi,

Could you try to update to the latest modem v1.2.x series? I see that you're using v1.2.0 now.

Kind regards,

Håkon

RE: 9160 System crash after CONFIG_DEVICE_POWER_MANAGEMENT is enabled

duxinglang — Thu, 18 Nov 2021 10:36:12 GMT

No, when it crashes, SES doesn't stay anywhere, it still shows running, but actually UE doesn't react anymore!

RE: 9160 System crash after CONFIG_DEVICE_POWER_MANAGEMENT is enabled

Håkon Alseth — Tue, 16 Nov 2021 11:28:18 GMT

Hi,

[quote user="duxinglang"]Thank you for your reply. I have tried debugging tracking, but when the device crashed, there was no error reported on SES [/quote]

Is it stuck somewhere when you pause the debugger?

RE: 9160 System crash after CONFIG_DEVICE_POWER_MANAGEMENT is enabled

duxinglang — Tue, 16 Nov 2021 08:06:26 GMT

Thank you for your reply. I have tried debugging tracking, but when the device crashed, there was no error reported on SES

RE: 9160 System crash after CONFIG_DEVICE_POWER_MANAGEMENT is enabled

Håkon Alseth — Mon, 15 Nov 2021 11:25:21 GMT

Hi,

It looks like you're using JLink RTT for logging.

This can be disrupted if a fault/reset occurs in the device, and thus lose the logging connection.

When this issue occurs, can you try to attach a debug session and see where the device is stuck? Based on both the log output and current consumption; it looks like it is stuck somewhere.

Kind regards,

Håkon

RE: 9160 System crash after CONFIG_DEVICE_POWER_MANAGEMENT is enabled

duxinglang — Mon, 15 Nov 2021 10:12:25 GMT

OK，I'll share this Log with you along with a screenshot of the power curve that PPK captured.

devzone.nordicsemi.com/.../AURI_5F00_FULL_5F00_FUNC_5F00_20211108.log

RE: 9160 System crash after CONFIG_DEVICE_POWER_MANAGEMENT is enabled

Håkon Alseth — Mon, 15 Nov 2021 10:06:48 GMT

Can you please share the log?

Kind regards,

Håkon

RE: 9160 System crash after CONFIG_DEVICE_POWER_MANAGEMENT is enabled

duxinglang — Mon, 15 Nov 2021 08:41:29 GMT

I can't see any useful information in logs, and based on my experience with previous tests, it looks like some application is using the uart while it's dormant.

RE: 9160 System crash after CONFIG_DEVICE_POWER_MANAGEMENT is enabled

Håkon Alseth — Mon, 15 Nov 2021 08:05:33 GMT

Hi,

[quote user=""]We have developed a project for the customer. In order to obtain longer battery life, we need to save power consumption, so we turn on CONFIG_DEVICE_POWER_MANAGEMENT. In order not to affect other places that need Uart, we will wake up Uart regularly according to TAU time. But after 14 hours (our local TAU time is 30 minutes), the system crashes. Why?[/quote]

Do you have a fault log or similar showing the issue?

Kind regards,

Håkon