Hello Charles! > I am using the onboard USART and can get chars transmitted and received > in hyperterminal. Obviously you've gotten it to work, but *far* ((far) did I mention far?) better is Tera Term http://www.ayera.com/teraterm/ It's *much* more configurable and controllable. Hterm is fine for talking with 'known working' hosts. But at the hardware level, testing, debugging, experimenting, LEARNING and such, TTerm blows Hterm away like dust. Have a :) day! jb -- jim barchuk jb@jbarchuk.com -- 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