Hi John; I am currently debugging the transmit portion of my firmware for the 16C74. I can not make it work without send bad characters every so often. I have done several RS-232 implementations in the past, but this one is the most difficult one to get working properly. Is it possible you could shed some light on my problem? I have been in contact with Microchip, but am getting no where fast. Regards, Brad Morrow -- - -------------------------------------------------------------------------- Brad Morrow Advanced Systems Division Product Design e-mail: morrow@asd.sgi.com Silicon Graphics, Inc. voice-mail: (415)390-1311 2011 N. Shoreline Blvd. fax: (415)961-9075 Mountain View, CA 94039-7311 --------------------------------------------------------------------------