Article View: comp.sys.ibm.pc.rt
Article #15serial ports at >4800 baud?
From: Robert Andrew Ryan
Date: Mon, 27 Jul 1992 17:53
Date: Mon, 27 Jul 1992 17:53
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1367 bytes
I am trying to configure some RTs as X terminals to be connected to our network via slip. They are floor models and have two built in serial ports, however I have been unable to get reliable results at over 4800 baud, I get garbage and dropped characters. Also if I have hardware flow control set on in the modem once I connect to our annex box it just sits there, if I switch the modem back to XON/XOFF and disconnect and re-connect to the modem (before it drops the annex connection) I get a bunch of backed up data from the annex. When connected to an RS/6000 9600 baud and hardware flow control seem to work ok with the same annex. I seem to remember reading a post here maybe a year ago about the chip driving the serial line having only a 1 character buffer, but that it was pin compatible with one with a 16 character buffer. Or was that about the 4 port serial card? Any info greatly appreciated... Thanks, -Rob Ryan
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Organization: School of Computer Science, Carnegie Mellon, Pittsburgh, PA Path: arc1-ca.pugleaf.net!sparky!uunet!cis.ohio-state.edu!news.sei.cmu.edu!fs7.ece.cmu.edu!crabapple.srv.cs.cmu.edu!andrew.cmu.edu!rr2b+ Newsgroups: comp.sys.ibm.pc.rt Message-ID: <0eR3UD200VsnQrw1om@andrew.cmu.edu> Date: Mon, 27 Jul 1992 13:53:19 -0400 From: Robert Andrew Ryan <rr2b+@andrew.cmu.edu> Subject: serial ports at >4800 baud? Lines: 21