CC3200 LPDS Mode - Goes in and out

Brian Donlan

Intellectual 425 points

Other Parts Discussed in Thread: CC3200

I am trying to put a CC3200 into low power mode using pieces of the Idle connect sample application

I think I have done everything necessary to go into LPDS

But it oscilates out ever 1.5 ms

Is this related to the systick timer ??

Or is something else interrupting and causing the wake up

I am using the RTC to wake up every 15 seconds, and that is work correctly

Anyone have any ideas ???

Thanks

Brian

over 10 years ago

0 Naveen Narayanan over 10 years ago

TI__Expert 5025 points

Hi Brian,
Is there a possibility that the system is waking up on network activity (packets received over the air)?
Best regards,Naveen

0 Brian Donlan over 10 years ago in reply to Naveen Narayanan

Intellectual 425 points

Thanks

I do not think so

I have commented out 90% of the application to the point where the Network is not started or connected to an AP

Unless not configuring the network processor causes a lot of interrupts ??

Thanks Much

Brian Donlan

0 Craig Carson over 10 years ago

Intellectual 780 points

I'd say double check your timer settings. It's suspicious the wakeup interval you're experiencing is 1.5ms when you're looking for 15s. Your posted image also sure looks like an even wakeup interval. Post your code for the timer so people can double check it.

0 Praveen Kumar N over 10 years ago in reply to Craig Carson

TI__Expert 6700 points

Hi Brian,

Is this issue resolved ?

Thanks and Regards,
Praveen

0 Brian Donlan over 10 years ago in reply to Praveen Kumar N

Intellectual 425 points

Yes

Thanks very much

Low power mode is working good

Originally I was adding idle_profile sample code to application (without great success}

But the idle_profile sample worked great

So I reversed my approach and began with the idle_profile code and added my app in piece by piece

Low power is looking real good

I have slowed the beaconing down to 1 sec

0 Praveen Kumar N over 10 years ago in reply to Brian Donlan

TI__Expert 6700 points

Thanks Brian.

I am closing this thread now, if you have follow up queries please open a new thread and add a link to this one for reference.

Regards,
Praveen

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CC3200 LPDS Mode - Goes in and out