Legato Power Management: Radio and App Processor


#1

I am using WP modem on mangOH board. A challenge for our custom design is we need to manage the power modes on radio and Cortex-A5 processor separately.

For example, I want to put radio into OFF mode or ULPM while A5 is sampling sensors on regular basis in active mode. I won’t turn on radio until the moment I need to do so.

Legato doesn’t seem to be able to manage the two cores separately. Is there way to do so in other way?

thanks!

Hui


#2

Hello,

One way to do this is with the radio control API, http://legato.io/legato-docs/latest/c_mrc.html

With it you can turn the radio off and Obama you need it.

-Kelly


#3

Thanks for the help!

Hui


#4