>Another potential disadvantage is very application-dependent. The >16C745 and '765 only support low speed USB. Depending on the >requirements, that may or may not be a show-stopper for their use. Well in this case he did specifically state it was to substitute for an existing serial interface, so I'm assuming the data rate is probably similar. It may be that just using a USB to serial adapter may suit the job in hand rather then redesigning the PIC software. -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body