Guys, from an enginner point of view, I know add a watch dog is not professional, ...... But add a watch dog is the simplest way to solve my problem.
I.e. in a CD player, when the systems reset, it begin at track 1. May be you do not interest in what trace was playing before the hungup. I only want the reste to play, instead of pen the enclosure, remove the wire and reconnect the wire, (power reset)