In SX Microcontrollers, SX/B Compiler and SX-Key Tool, peterverkaik wrote: Possible reasons are: SERIN never receives data Baud is wrong (although that usually leads to wrong data, not blocking) RX is an output rather than input temp1 is an alias for a __PARAMx systemvariable used by SERIN Best advice: post the complete code as attachement if you can't solve it. regards peter ---------- End of Message ---------- You can view the post on-line at: http://forums.parallax.com/forums/default.aspx?f=7&p=1&m=320986#m321023 Need assistance? Send an email to the Forum Administrator at forumadmin@parallax.com The Parallax Forums are powered by dotNetBB Forums, copyright 2002-2009 (http://www.dotNetBB.com)