Subject: From: Date:

Re: [ECS] Lost Time! Dario Greggio Tue, 28 Nov 2000 11:30:09 +0100

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> > Joseph and Jessica Colson wrote:
> >
> >      I'm having a problem with my system losing time.  Every 8 hours
> > and it will be 20 to 25 minutes off.  I remember reading something
> > about
> > this a while back.  Anyone have any ideas what's causing this?

It usually happens by "stealing" interrupts: the RTC clock inside the PC
is hardware-driven, but the software clock (in DOS and Windows) goes on
only by interrupts coming from the RTC.
If your application(s) stop interrupts once in a while, then you may
experience such things: maybe a serial port, a PCI software modem...
I solved it time ago with a small routine that would read the RTC (port
0x60/0x61) and then update the "software clock" every hour.
Let me know if it could help anybody.

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Ciao,
Dario
--
ADPM Synthesis sas - Torino
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http://www.geocities.com/adpm99

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