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Path: utzoo!linus!philabs!cmcl2!floyd!whuxle!pyuxll!eisx!npoiv!npois!hogpc!houxm!ihnp4!ihnss!knudsen
From: knudsen@ihnss.UUCP
Newsgroups: net.micro.6809
Subject: Slow Clock:  a problem?
Message-ID: <1777@ihnss.UUCP>
Date: Tue, 1-Nov-83 18:32:43 EST
Article-I.D.: ihnss.1777
Posted: Tue Nov  1 18:32:43 1983
Date-Received: Fri, 4-Nov-83 03:53:28 EST
Organization: AT&T Bell Labs, Naperville, Il
Lines: 10

I'm amazed at how rapidly the time-of-day clock in my Coco OS-9
loses time.  I'd say it loses a minute per hour, or one part
in 60!!  No, I wasn't running any interrupt stuff or even hitting
the disk much -- mostly just perusing the manual and trying out
commands.  Can the 3.58 MC colorburst crystal really be that far
off and still work on  a color TV?  More important, if the
timing is that screwy, how much can we believe the disk RPM
program so nicely supplied by the Shack?  One part in 60 equals
plus/minus 5 RPM, slightly greater than the allowable speed range.
What am I overlooking?   mike k