NRF9160 Zephyr Idle Hooks

RE: NRF9160 Zephyr Idle Hooks

Simon — Mon, 13 Jul 2020 12:39:54 GMT

Would this solution work for you:

"One solution could be to create a thread with the lowest priority that executes a loop and when it gets the CPU nothing else is scheduled and you can make your desired action. Then you can sleep in this thread for some time to make sure checks are not done too often."

Or would you rather use some of the already present Zephyr/NCS libraries to achieve this? I have not looked too much into the Power Management library, but I can do some investigation or ask internally if you would like to.

You could also ask you question here, since this is a Zephyr related question.

Best regards,

Simon

RE: NRF9160 Zephyr Idle Hooks

Thomas — Thu, 09 Jul 2020 14:01:07 GMT

Hi Simon,

Yes, that’s the issue - the power management hooks are only used when entering deep sleep and deep sleep enters the system off mode which is undesirable.

Kind regards,

Thomas

RE: NRF9160 Zephyr Idle Hooks

Simon — Thu, 09 Jul 2020 11:56:38 GMT

One solution could be to create a thread with the lowest priority that executes a loop and when it gets the CPU nothing else is scheduled and you can make your desired action. Then you can sleep in this thread for some time to make sure checks are not done too often.

However, what do you mean by "external devices"? If you want to control the on-chip peripherals, they have power management hooks that are called when the device enters deep sleep.

Best regards,

Simon

RE: NRF9160 Zephyr Idle Hooks

Thomas — Tue, 07 Jul 2020 06:38:12 GMT

Thank you for the update Simon

RE: NRF9160 Zephyr Idle Hooks

Simon — Mon, 06 Jul 2020 02:48:54 GMT

I am sorry for the late reply. A huge portion of the support team is on summer vacation and that causes some delay. I will try to provide you with an answer in the upcoming week.

Best regards,

Simon