Strange power consumption on advertisement interval using BCM 20737

Anonymous · ‎Jun 01, 2015

I set advertisement interval below using Wiced Smart SDK running BCM92073X_LE_KIT.

/*.high_undirect_adv_interval =*/ 800, // 32 slots (20ms)

and other setting is

/*.high_undirect_adv_interval =*/ 1600, // 32 slots (20ms)

But we found there is no difference between 800 slots and 1600 slots on power consumption.

Power consumption is the same between 800 slots and 1600 slots.

My test is correct?

I ran hello_sensor application. I just modified adv_interval.

I'm looking forward to BRCM experts' reply.

BoonT_56 · ‎Jun 03, 2015

First of all, the tag3 is not the best platform to measure current consumption.

800 slots (0.5s) is a rather long interval for high_undirected as compared to the hello_sensor. Assuming you are in sleep mode after each advertising event and you set a long enough duration, I will not be surprised if you get 22uA, considering the sleep current for the 20737 (chip only) is around 12uA.

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Strange power consumption on advertisement interval using BCM 20737

Strange power consumption on advertisement interval using BCM 20737

Re: Strange power consumption on advertisement interval using BCM 20737