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WICED Studio Wi-Fi Combo

Anonymous
Not applicable

Hi,

For a new product we are evaluating the low-power characteristics of the BCM943362WCD4 module using the BCM943362WCD4_EVB with a HP AP.

Using the “powersaveping.snip” the lowest we can go with a 102.4ms beacon a DTIM 1 is 1,7mA (1,9mA avg) which accordingly with the datasheet is just fine. Then, as mention in the powersave application note and in this post (How to minimise Wi-Fi power consumption (BCM43362) while staying connected?), we tried changing the listen interval, the AP beacon interval and DTIM, but with no result, the lowest we can go is still the 1.7mA.

It seems that we are missing something to make the MCU enter sleep mode in the inter-beacon time or that the FreeRTOS cannot determine when to go to sleep… following this reasoning we tried a different implementation of the power save snip that is attached, but still the same result. Is there any specific configuration to do to achieve this power consumption reduction? Any idea that could bring some light to this issue?

Thanks, and regards

Aketza

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4 Replies
Anonymous
Not applicable

Aketza,

Very shortly we are releasing a number of special powersave modes into the WiConnect API and these should drastically simplify things for you. Keep monitoring the WiConnect release notes. The first modes are coming out very soon

WiConnect by ACKme | 1.1:release_notes

Nick

WICED Wi-Fi ForumsACKme Networks

Anonymous
Not applicable

Hello Aketza,


Have you reduced current consumption from 1.7mA?

Please tell me what you did if possible.


By the way,

Is your result, 1.7mA only for BCM43362? Or does the value include MCU?

I'd like to reduce current consumption as module(both Wi-Fi and MCU).

Regards,

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Anonymous
Not applicable

Hi Dmiya,

Nothing new about the consumption, we are planning to change to a different module, with better support.

Referring to the 1.7 mA measured, it includes the module cosumption, the module we are using is fitted with the MCU as well, it is a BCM943362WCD4_3

Regards,

Aketza

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Anonymous
Not applicable

Thanks.

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