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Original question:

CC2530 sleep mode

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 

  • +1
    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 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 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