I think a problem with setting the usart for 9 bits is that it does it on both transmit and receive. Another way to leave idle time between characters (similar to more start bits) is to use a timer interrupt instead of the usart tx interrupt to load the next character. Harold -- FCC Rules Updated Daily at http://www.hallikainen.com - Advertising opportunities available! -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist