Wireless MCUのトピックkw41z power consumption

kw41z power consumption

danieltseng — Fri, 21 Feb 2020 06:35:04 GMT

Use SDK example "power manager(A)" and "smac low power node(B)" to test power consumption
Use Hardware FRDM-KW41Z- ver A3
Measurement point is SH504

Question:
1. Why is there such a big difference in power consumption between the two(A.B)? What are the main reasons?
2. Both(A,B) are below VLPS, why can't the power consumption drop anymore?

Re: kw41z power consumption

mario_castaneda — Thu, 27 Feb 2020 21:14:13 GMT

Hi Daniel,

Be sure that you are disabling the Pins that you are not using. The SMAC exampe is calling the buttons,led, SPI and I2C init pins.

Please look at the pin_mux.c file.

Regards,

Mario

Re: kw41z power consumption

danieltseng — Mon, 02 Mar 2020 02:43:56 GMT

Hi Mario,

I see. Thank you for your support。

Daniel