Constant Latency vs Low Power mode

RE: Constant Latency vs Low Power mode

Elfving — Tue, 05 Apr 2022 09:34:43 GMT

Hello again Frikkie and Rodek, sorry about the delay.

[quote user=""]Detailed info on the Low Power mode and Constant Latency mode is a bit hard to find.[/quote]

Yes it unfortunately can be. There is some available in the Product Specification. There you can see that the constant latency mode will give you a "Time from IDLE to CPU execute" delay of 10µs.

Low power mode comes with variations in CPU wakeup latency and PPI task response. It is hard to give any official numbers for this because it depends on what the state of other internal "voltage nets" are when you're entering sleep. it takes time to start up HFRC, flash, etc.

Regards,

Elfving

RE: Constant Latency vs Low Power mode

Elfving — Wed, 30 Mar 2022 11:19:54 GMT

Hello Frikkie and Rodek,

I will have to get back to you on this.

Regards,

Elfving

RE: Constant Latency vs Low Power mode

radek tanski — Mon, 28 Mar 2022 13:43:39 GMT

Yes, to add to the question, what is the worst case low power interrupt latency assuming all systems are in low power. additionally what considerations should be taken to minimize interrupt latency when in low power mode?

We would be using the network core with 10ms slots that have very critical timings internally for receiving and transmitting. will the low power mode be able to handle that situation?