Hello, i'am looking for interrupt driven serial communcation routines for the 16c74. I think that such a basic thing it must be somewhere be available on the net of somewhere else, but i haven't found it yet. Can somebody give me some hints ?. Thanks in advance . -------------------------------------------------------- Professional Audio Center / EELA Audio (email: pac@eela.nl) Parmentierweg 3 Phone: +31 40 251 04 84 5657 EH Eindhoven Fax : +31 40 257 04 82 The Netherlands homepage : http://www.eela.nl Hans Brandsma (email: hans@eela.nl)