Power Saving for End Device

Hamza Shareef

Other Parts Discussed in Thread: CC2530

Hello,

I want my End Device to sleep when Ever there is no operation to perform. I have seen the Document provided by Zstack. That we need to enable the Compile time option POWER_SAVING. The Default Sample Light for End Device is xPOWER_SAVINGS What does it mean.

And in that document, setting the poll rate also is important, which will affect the Timer Sleep. DPOLL_RATE = 1000. It is recommended to increase the poll rate to 5000(500 millisecond). DPOLL_RATE is the periodic poling for Coordiantor for Queue(to check any data is available or not). Then,

What is -DQUEUED_POLL_RATE?

What is DRESPONSE_POLL_RATE?

Is there any other option for power saving.

over 11 years ago

0 YiKai Chen over 11 years ago

Guru 735685 points

If you enable POWER_SAVING, the CPU of CC2530 will go to sleeping mode for power saving when there is no task to handle. If I remember correct, the minimum polling rate recommended by Zigbee alliance is 5000 milli seconds.

0 Antonio del Río over 11 years ago

Intellectual 395 points

About the "x" at the beginning of the option's name, it is just a way to leave the option undefined but it reminds you that you can use it just removing the "x".

Maybe the Default Sample Light example was written for debugging so it removes the power saving mode to use debbuging.

0 YiKai Chen over 11 years ago in reply to Antonio del Río

Guru 735685 points

It is because SmapleLight should be power with AC power in real case. So, the sample doesn't define POWER_SAVING.

0 Hamza Shareef over 11 years ago in reply to YiKai Chen

Intellectual 540 points

Can I remove "x" from it. if that is connected to Battery and if it is End Device. and I want to know

What is -DQUEUED_POLL_RATE?

What is DRESPONSE_POLL_RATE? . Because these factor is also affect the Sleep Timer as per the Document.

0 YiKai Chen over 11 years ago in reply to Hamza Shareef

Guru 735685 points

Yes, you should remove "x" from POWER_SAVING if it is end device with battery operated. For QUEUED_POLL_RATE and RESPONSE_POLL_RATE, you can refer to Z-Stack Compile Options.

0 Hamza Shareef over 11 years ago in reply to YiKai Chen

Intellectual 540 points

Thanks Chen, let me know is my understanding is correct,

DPOLL_RATE - End Device will check any message indication

QUEUED_POLL_RATE - After getting any message indication, it will poll for getting the data

RESPONSE_POLL_RATE - After getting message to send the Acknowledgement.

0 YiKai Chen over 11 years ago in reply to Hamza Shareef

Guru 735685 points

It is correct of your understanding.

0 Hamza Shareef over 11 years ago in reply to YiKai Chen

Intellectual 540 points

I am having some problem. If I give POWER_SAVING at compile option. Then if I make some Actuation(LED) with intention till other data receive. But LED in Blinking. I assume, since it is going to sleep. LED became of then ON after waking up. How can I fix this. My intention is make LED on always.

0 YiKai Chen over 11 years ago in reply to Hamza Shareef

Guru 735685 points

You can disable HalLedEnterSleep(); and HalLedExitSleep(); in halSleep function.

0 Hamza Shareef over 11 years ago in reply to YiKai Chen

Intellectual 540 points

My LED is connected to GPIO P0_7 or P1_1. if make P1_1 = 1. Then it should glow till I make P1_1 = 0. Even though power saving.

0 Hamza Shareef over 11 years ago in reply to Hamza Shareef

Intellectual 540 points

Thanks Yikai, its solved now.

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Power Saving for End Device