[Tinyos-devel] Re: [Tinyos Core WG] time sync interfaces

John Griessen john at ecosensory.com
Tue Dec 18 14:03:16 PST 2007


David Gay wrote:

> Surely that depends on what resolution timesync you think is
> worthwhile? My assumption is that different apps have different
> precision requirements, from second-level timesync down to
> microsecond-level timesync. I'm fairly sure that second-level timesync
> doesn't require an adjustable PLL oscillator ;-)

OK.  Yes, a .1 second resolution HIL module would be a go...
and yes that is more useful than systems out of sync by half a second...

Any chance we have of using the most deterministic delays coming from the hardware
we should take it is all I meant.

What time accuracy do you call a useful timesync on our current platforms?

John Griessen

-- 
Ecosensory   Austin TX
tinyOS devel on:  ubuntu Linux;   tinyOS v2.0.2;   telosb ecosens1


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