RE: Best way to implement polling in the event manager

user109668 — Wed, 18 May 2022 14:23:31 GMT

Hello Einar,

This is very useful, thank you!

We've gone with a high priority thread for now, sleeping using k_sleep for the required time since the last sleep, but it's not an ideal solution. We'll look at moving it over to using timer interrupts in the future

Thanks,
Mark

RE: Best way to implement polling in the event manager

user111520 — Wed, 18 May 2022 14:12:35 GMT

Hello

If your sensor allows it I would set it up to take measurements at the frequency you'd like, and let it generate an event through a gpio interrupt when new data is ready. If your sensor can't do that, then your best option is probably just to generate events through timer interrupts.

You are correct that workqueue threads are typically used to process non-urgent work, but depending on how much else is going on in your application it could possibly work well. If your application is running several different threads and all you want is to pass sensor data to a high priority thread doing control loop calculations, then maybe Zephyr's Queue could work?

Best regards,

Einar