MC13224 low power mode

[andreato]

Hallo,

I need to put the MC13224 in low power mode. The problem is that this node is a coordinator that works as a remote and portable controller. The beekit permits the low power mode only for an end device. In my case I have a network where the coordinator asks and the others answer so I can decide when weak-up. Can some one give me info about how to configure or change the beekit generation tu put a coordinator in low power?

Thank you.

Regards

[giada]

hello,

i'm testing low power mode on mc13224v, in hibernate mode i use 2KHz internal oscillator. This can change from 1KHz to 4KHz, but i see a frequence of 20KHz! It's too differente!

Only changing Ftune and Ctune of RING_OSCILLATOR_REGISTER i have 2KHz.

Can someone help me?

bye

Giada

[redbee]

Giada,

When I use the "2kHz" internal oscillator I first run the calibration sequence using CAL_CNTL to determine exactly was speed it is running at. I then use this calibrated clock to determine how many cycles to sleep for.

You can find an example of this here:

http://git.devl.org/?p=malvira/contiki-mc1322x.git;a=blob;f=cpu/mc1322x/crm.c

at the bottom.

-Mar.