Path: utzoo!yunexus!ists!jarvis.csri.toronto.edu!mailrus!uunet!intercon!testus@intercon.com From: testus@intercon.com (Amanda Walker) Newsgroups: comp.sys.mac.programmer Subject: Re: Serial port question Message-ID: <1558@intercon.com> Date: 17 Nov 89 19:52:24 GMT Article-I.D.: intercon.1558 References: <1989Nov16.190032.13720@aucs.uucp> Sender: news@intercon.com Reply-To: testus@intercon.com (Amanda Walker) Organization: InterCon Systems Corporation Lines: 18 In article <1989Nov16.190032.13720@aucs.uucp>, peter@aucs.uucp (Peter Steele) writes: > Does anyone know how to initialize the Mac serial driver to send at > 38400 baud? The contants are available to initalize it to 57600 and > 19200 baud but not 38400. Any reason why? I think that Microphone can > send at 38400 so its probably possible. There's a control call to the serial driver that will let you give it an arbitrary speed, and it will set the port to the closest rate that the hardware will allow, and return the resulting actual baud rate. csCode = 13 csParam = desired baud rate (in), actual baud rate (out). See IM II-254 for more information. Amanda Walker --