Legato Power Management: Radio and App Processor


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?





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.



Thanks for the help!