Date: Tue, 25 May 1999 23:49:16 +0200 (CEST) From: Wilko Bulte <wilko@yedi.iaf.nl> To: kstewart@3-cities.com (Kent Stewart) Cc: dwhite@resnet.uoregon.edu, dburr@pobox.com, freebsd-questions@FreeBSD.ORG, freebsd-scsi@FreeBSD.ORG Subject: Re: Help! - "parity error during data-in phase" when using CD-Rdrv Message-ID: <199905252149.XAA05463@yedi.iaf.nl> In-Reply-To: <374AF6E8.9CD7300C@3-cities.com> from Kent Stewart at "May 25, 1999 12:15:52 pm"
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As Kent Stewart wrote ... > > I have also hooked a scsi cable incorrectly. Nothing on the scsi > controller worked when I did that. You can't hook a scsi cable up to a > CDROM off one pin like you can some devices. Nothing worked when you > do that either. It seems like you end up with a ground on a data line > or power. Correct observation. Single ended SCSI has a 1:1 interleave of the signal lines with ground lines (ok, there are a few exceptions, but this is the ground rule). This is yet another indication why 25pin subD-connectors are a horrible idea on a SCSI bus. | / o / / _ Arnhem, The Netherlands - Powered by FreeBSD - |/|/ / / /( (_) Bulte WWW : http://www.tcja.nl http://www.freebsd.org To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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