I'm working with a UDOO Neo full board at the moment and they have a i.MX6SX embedded.
I'm a newbye in this field and I can't find a solution for my problem.
In order to achieve a low power consumption I need a sleep/awake behavior between A9 and M4.
I can put the A9 into sleep if I do
echo standby > /sys/power/stat
But I need a way to wake it up through the ttyMCC serial, so with a serial.print() from M4 sketch. T
here is no wakeup in /sys/bus/platform/drivers/imx6sx-mcc-tty/mcctty.13/power/
This is the way I would like. If it's not possible, could I use gpio? How to enable one of them?