KL25 RTC Power

[engdigital]

Hello,

from what I understand, KL25 series has no battery pin and the RTC shares its power domain with the Core. I've read in another question that it is possible to put the KL25 in a low power state when the main power supply goes off.

Do I have to implement this on my own e.g. w/ an interrupt on a IO/Comparator pin or is there something already integrated?

Is there any code sample on the matter?

Thanks.

[Hui_Ma]

Hi

KL25 has various low power mode, while it also need main power(power to KL25's VDD pin). Customer could low down the main power to 1.71V, if main power was taken off, the KL25 was off too.

About KL25 low power mode example code, customer could download KL25 example code(bare-metal) from here.

NXP also provides KSDK software for KL25 product, please download software from here.

Wish it helps.

Have a great day,
Ma Hui
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[mjbcswitzerland]

Hi

http://www.utasker.com/kinetis/KL_RTC.html

Regards

Mark