On 17/10/2011 13:38, Bob Ammerman wrote: > As a test, you could modify your code to send two stop bits (but leave th= e > windows side programmed for one stop bit) and see if the problem goes awa= y. If the UART has no "two stop bits" option built in then add "parity bit"=20 fixed at "mark". (I think most 16F and 18F have that option as a way to=20 get two stop bits). --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .