Due to a format error in the subject line I repost this message... sorry to those who got it earlier..... Best Pic'ers I know I have asked before....but without response.... However... I'll try it again... Have anyone interfaced the 16C550C Asynchronous Communication element with auto flow control.... If anyone have interfaced this IC and would like to share the code with me I would be really grateful. My mission is to interface this IC in C-code with a 16F877 as main processor.... Any help is greatly appreciated. Best Regards, Lars Thornqvist -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.