Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!pacific.mps.ohio-state.edu!linac!att!ucbvax!UCBVAX.BERKELEY.EDU!"Dan Karron From: Dan Karron@UCBVAX.BERKELEY.EDU Newsgroups: comp.sys.sgi Subject: Re: serial line again Message-ID: <9104240347.AA19318@karron.med.nyu.edu> Date: 24 Apr 91 03:47:22 GMT Sender: daemon@ucbvax.BERKELEY.EDU Reply-To: karron@cmcl2.nyu.edu Organization: The Internet Lines: 35 Sorry, I did not mean that sgi serial did not work well. I meant that lots of peripherals don't work well at the upper limits of their speeds. I did have some problems on a 70G box with serial io, but that was cured by upgrading to a 85GT. I find that at high speeds xon/xoff from a peripheral may not be fast enought, and lots of peripherals don't stop blabing on time. Lots of of patching of pins 4,5,8 and (9)20 is usually required for hardware handshake. Anyway, once I solved the problems, they have stayed solved, and all is wonderful. Sgi serial buffers work just fine at high speed. >Subject: Re: serial line again >In-Reply-To: your article <9104232000.AA17240@karron.med.nyu.edu> >News-Path: sgi!decwrl!ucbvax!UCBVAX.BERKELEY.EDU!"Dan Karron > >> I have wasted lots of time trying to >> break into the serial world > 9600 baud. >> >> Lots of things don't work as advertized >> at exotic speeds. Patience, a breakout box >> and lots of testing is required. > >What exactly did not work, that SGI advertized to work, at speeds > 9600? > >/be > | karron@nyu.edu (e-mail alias ) Dan Karron, Research Associate | | Phone: 212 263 5210 Fax: 212 263 7190 New York University Medical Center | | 560 First Avenue Digital Pager <1> (212) 397 9330 | | New York, New York 10016 <2> 10896 <3> |