Article View: comp.sys.sun.hardware
Article #76Re: Serial Port On a Sun 3/80
From: Duke of Canterbury
Date: Sat, 31 Oct 1992 22:32
Date: Sat, 31 Oct 1992 22:32
23 lines
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1542 bytes
daum@ee.ualberta.ca (Tanya Louise Daum) writes: : Anyone know of a solution to a problem that I am having with my serial : ports on the 3/80. : : If hardware flow control is on and the carrier is down, I can't get : a response from the modem that I have the port connected to. : If I send the modem ATI4, it will return the current NVRAM settings. : The receive data light blinks just as normal but nothing is received from : the port. : : Is this normal?? er.. correct. Yep. It's a bug/feature of the Zilog 8530 UART. Nothing that you can do to fix it, other than do as one poster suggested earlier and turn on h/w flow control only AFTER CD is high (i.e. connection is established). mike -- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ mike bender DOD# 007 for sale: NX-650 & VT110 Shadow 415-863-8913 (home) bender@oobleck.eng.sun.com nothin' witty here 415-336-6353 (work) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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Path: arc1-ca.pugleaf.net!sparky!uunet!elroy.jpl.nasa.gov!swrinde!cs.utexas.edu!sun-barr!news2me.EBay.Sun.COM!exodus.Eng.Sun.COM!appserv.Eng.Sun.COM!oobleck!bender From: bender@oobleck (Duke of Canterbury) Newsgroups: comp.sys.sun.hardware Subject: Re: Serial Port On a Sun 3/80 Date: 31 Oct 1992 22:32:43 GMT Organization: SPARK's R US Lines: 23 Message-ID: <lf62cbINNa4l@appserv.Eng.Sun.COM> References: <daum.720563409@ee.ualberta.ca> Reply-To: bender@oobleck.eng.sun.com NNTP-Posting-Host: oobleck X-Newsreader: Tin 1.1 PL3