IMHO, I would use a single clock to generate a hardware interrupt to both computers.  
This would ensure that each computer has the same period.

> ----------
> From:         Hideo Sato[SMTP:[EMAIL PROTECTED]]
> Sent:         Tuesday, January 18, 2000 3:04 AM
> To:   [EMAIL PROTECTED]
> Subject:      Re: [rtl] accuracy of 8254 timer chip
> 
> 
> Hi! Thanks for your help.
> 
> On Tue, 18 Jan 2000 09:52:39 +0000
> Paolo Mantegazza <[EMAIL PROTECTED]> wrote:
> 
> > > By the way,
> > > "RT-Linx" uses "8254-timer-chip" to manage real-time tasks.
> > > I want to know the accuracy of "8254-timer-chip".
> > > Where can I get the infomation?
> > it runs at 1193180 Hz.
> 
> Yes, I know it.
> But, I think "8254-timer-chip" has an error range.
> 
> For example, 
>       "the errors of plus or minus 1 micro second per 1 minute"
> 
> I want to have the exactly same period between 2 computers.
> 
> Regards
> 
> /-------------------------------------------/
>  Department of System Design Engineering
>  Keio University Yako Laboratory
>  Hideo Sato
>  E-mail    [EMAIL PROTECTED] (Univ.  )
> /-------------------------------------------/
> 
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