How about this: an
external box connected to an AC outlet, inside an optocoupler with
schmitt-trigger(sp?) and a connector for a serial cable? Connect to a
spare
serial port on your PC, you could get a nice TTL signal on one of the
readable pins on the port.
That's a nice idea. Give it an
.
--
Richard Urwin, Private
No 9000 series computer has ever made a mitsake or corrubiteddatatato.
-Original Message-
From: [EMAIL PROTECTED]
[mailto:newbie-owner;linux-mandrake.com]On Behalf Of Lyvim Xaphir
Sent: 03 November 2002 21:02
To: NewbieMandrake-List
Subject: Re: [newbie] clock help
On Mon, 4 Nov 2002 13:42:08 -
Richard Urwin [EMAIL PROTECTED] wrote:
The suggestion is not entirely out-to-lunch. Computers certainly used to
use the line frequency for the real-time clock; the PDP-11 comes to
mind.
In fact the line frequency is a better solution than crystal because,
On Fri, 2002-11-01 at 15:31, Frans Ketelaars wrote:
Uhm, I don't think the power line frequency has anything to do with timing
in computers like PC's that use crystals for timing :)
That is correct. 60 cycle ac is rectified and filtered to 12 and 5 volt
DC current in the power supply; that is
On Friday 01 November 2002 08:59 am, Bob Read wrote:
Sounds like the system clock is set for 50Hz power line frequency,
and you are using 60Hz power line.
Bob
if this were to happen,,, first time I ever saw a system clcok using line
voltage, most every one I ever saw used mother board
Three hours a day sounds like Linux is mis-understanding some clock rate
on your system. Maybe a mismatch between some motherboard part and the
corresponding driver. I should check the motherboard manufacturer's
web-site and do a web search with Linux and the motherboard model. Have
you
Sounds like the system clock is set for 50Hz power line frequency,
and you are using 60Hz power line.
Bob
Richard Urwin wrote:
Three hours a day sounds like Linux is mis-understanding some clock rate
on your system. Maybe a mismatch between some motherboard part and the
corresponding
Uhm, I don't think the power line frequency has anything to do with timing
in computers like PC's that use crystals for timing :)
On Fri, 01 Nov 2002 08:59:46 -0500
Bob Read [EMAIL PROTECTED] wrote:
Sounds like the system clock is set for 50Hz power line frequency,
and you are using 60Hz
