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GAP Role (Peripheral), Power Calculations for continuous Advertising on single and multiple Channel(s) for CC2541 BLE Stack

Sunny Bhayani
Expert 1730 points

Hi,

We are trying to do continuous advertisement by configuring Channel 37 for advertisement, and disable other two channels (channel 38 and channel 39).

By doing so, we should get a good amount of power saving right ?

For example, if we take two scenarios mentioned below:

1. Do continuous advertisement on Channel 37, 38, and 39 for whole day
2. Do continuous advertisement on Channel 37 for whole day

then when we compare both the above scenarios, we should get around 66% more power saving in scenario 2 as compared to scenario 1 right ?

But we are seeing the same power numbers for both the scenarios.

Is there anything missing from our end regarding the same ?

  • 0
    TI__Guru** 106705 points
    Hi Sunny,

    I would recommend measuring the actual current consumption to see what is going on in the two different setups. See this appnote for instructions: ti.com/lit/pdf/swra347

    Cheers,
    Fredrik
  • 0 in reply to Fredrik K
    Expert 1730 points

    Hi Fredrik,

    Thank you for the information.

    We have measured the power consumption for one channel advertisement and for all three channel advertisement.

    The difference in current for Tx only slot for both the scenarios is not much.

    We are doing further analysis.

    Appreciate for your time.


    Thanks,
    Sunny