Hello guys, every program i wrote that uses the serial port crashes the system if there are many characters arriving at the same time, or the pic is doing another thing and not expecting serial data. So i just tried to disable usart port and enable when need, but did not work too. Is it the correct aproach? How could I turn on/off 16F627 serial port after its been setu? []s Rafael. -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics