From mboxrd@z Thu Jan  1 00:00:00 1970
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Date: Mon, 20 Mar 2006 16:23:50 +0100
From: Philippe Gerum <rpm@xenomai.org>
MIME-Version: 1.0
Subject: Re: [Xenomai-core] Synchronising TSC and periodic timer
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To: Rodrigo Rosenfeld Rosas <rosenfeld@domain.hid>
Cc: Jan Kiszka <jan.kiszka@domain.hid>, xenomai@xenomai.org

Rodrigo Rosenfeld Rosas wrote:
> Philippe Gerum wrote:
> 
>>...
>>Given the description above, just that some skin might return either
>>nucleus ticks or corrected timestamps to the applications, which would
>>in turn do some arithmetics for converting values they got from the skin
>>between both scales internally, and mistakenly use the result while
>>assuming that both scales are always in sync. In this situation, and
>>during a fraction of the time (i.e. the jitter), both scales might not
>>be in sync, and the result would be unusable.
> 
> 
> But I still can't find a real situation where the user would need these values 
> to be in sync...

It's not a matter of dealing with users always doing The Right Thing, 
but preferably preventing people from doing the wrong one.

-- 

Philippe.