Haven't had a chance to study your code yet, but are you sure you are inverting and/or buffering your tx out to the PC? Rick Delhaye Marijn wrote: > Hello , I got a problem with a connection between the PIC16F877 and > the PC . I wrote this little program . Normally it sends continuous > the letter 'A' to the PC . With hyperterminal i just get some strage > letters and characters . Hyperterminal is set to 2400 8 - N - 1 . Do > you see where my problem is ? Thanks -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads