CC2651P3: ZED adjust time to wake up periodically

Anandhu Krishna

Prodigy 40 points

Part Number: CC2651P3
Other Parts Discussed in Thread: Z-STACK,

Hi,

Can we adjust the wake up time for ZED example for 2 times a day?

Is that possible by adjusting POLL_RATE or any additional settings should be done?

Thanks & regards

3 months ago

+1 Ryan Brown1 3 months ago

TI__Guru**** 205097 points

Hi Anandhu,

The ZED is limited by a known issue, here is a reference from the Release Notes.

ZIGBEE-1617

Z-Stack sleepy ZED unexpectedly active when using large poll period values

You can use a POLL_RATE value of 540000, or 9 minutes, which should not significantly affect your power consumption. This is the only time the ZED will be awake, unless data is queued by its parent or the ZED itself is transferring data.

Regards,
Ryan

0 Anandhu Krishna 3 months ago in reply to Ryan Brown1

Prodigy 40 points

What about Deep Sleep mode? Is it possible to wake up without an external interrupt from deep sleep?

0 Ryan Brown1 3 months ago in reply to Anandhu Krishna

TI__Guru**** 205097 points

There is no SRAM or register retention during shutdown mode, and only a pin edge, reset pin, or power-cycle will restart device activity. Since the previous device state is not retained, the CC2651P3 must restart the application which will require the ZED to rejoin the network. This requires several OTA packets which will consume more current than an in-network, one-time data request poll.

Regards,
Ryan

Zigbee & Thread

Zigbee & Thread forum

CC2651P3: ZED adjust time to wake up periodically