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Forum Topic - Periodically sleeping the system for an arbitrary amount of time: (3 Items)

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Juan J Martin(deleted)

11/09/2015 1:26 PM

post114930

Periodically sleeping the system for an arbitrary amount of time

I am looking into the possibility of using QNX for a project. I want to design a system that is able to sleep for an 
arbitrary but configurable amount of time and then wake up for a different but configurable amount of time.

The precision of the sleeping/wake up time is not relevant here.

For instance, sleeping for 800ms (+ or -) and waking up for 200 ms. This way, the system can save a lot of battery.

Is this feasible using QNX? If yes, can you give me some hints? If not, thanks anyway :)

mario sangalli

11/10/2015 2:27 AM

post114943

Re: Periodically sleeping the system for an arbitrary amount of time

Hi Martin,
Of course QNX (an a lot of other OS including Linux and some the minimal ones) are able 
to performs such task.
I suppose that what You really want is to stay in suspend/low power mode for an amount 
of time  and ther resume activity for another  amount of  time , so You must  be sure that 
Your target CPU and pheriperals will be designed to suport low power AND that QNX 
supports that hardware. See the power management for QNX details.
regards,
Mario

sang lee

12/08/2015 7:12 PM

post115247

Re: Periodically sleeping the system for an arbitrary amount of time

Hi Mario

I have been looking into something similar, and I have been having a problem finding relevant docs for 6.6

May I ask if you could post which doc could be used as a reference?

Much appreicated.

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