Date: Tue, 12 Jun 2001 13:58:16 -0400 (EDT) From: David Miller <dmiller@sparks.net> To: freebsd-stable@freebsd.org Subject: Re: serial port stuck at 9600 Message-ID: <Pine.BSF.4.21.0106121330250.59495-100000@search.sparks.net> In-Reply-To: <Pine.BSF.4.21.0106111103360.57378-100000@search.sparks.net>
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On Mon, 11 Jun 2001, David Miller wrote: > Hi All:) > > Is there a problem with setting serial port speeds in 4.3R? After digging through a couple of other "identical" systems, I've discovered that the only reason it worked at all was that the BIOS was configured with the com port on "auto". When set to be com1 at IRQ 4 it ceased to function at all, matching the other two systems. I've tracked the problem down to the port (ttyd0) not having DCD input. Using cuaa0 worked fine, so the serial port is OK. I checked the cable, and DCD is wired straight through (pin 1 on the 9 pin ports), so it's not the cable. I'm connecting with a serial port on another PC running freebsd and "cu -l /dev/cuaa0 or cu -l /dev/ttyd0". In both cases I get a connection message, but the remote end never responds. I slapped a breakout box on the end of the cable and confirmed that DCD is not being raised by cu. That means my question is: "When using a FreeBSD system as a console for another system, how do I raise DCD in order to establish a connection?" Clues welcomed:) --- David To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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