I'm building a prototype with Udoo and I'm trying to make it to boot and shutdown like a typical PC. This is the behavior I'd want: - when the power jack is plugged nothing happens - the imx6 boots only after i push a button - if I shutdown the sam3x via software, a push of a button will boot the system again I searched for some on board connectors but the only one i think is related is the J25 (DC-IN). I imagine it works like the external jack but from the schematics (page 15) alone I cant figure how to use it. I'd like to have some more documentatione before starting to play with the power supply :? To be able to boot again the system after a software shutdown i must use a button, a switch will not work as expected. Is there an "official" way to obtain my wanted behavior?