On Jul 3, 2007, at 2:10 PM, John Griessen wrote:
Steve McKown wrote:
3 - If it's not.. what use does it have?
The metadata is useful for writing network functionality. It's
used in CTP for example, to manage neighbors and routing. I don't
think you'd want an application to use metadata directly, since
you're then tying that application to a specific bit of radio
hardware.
So timestamp metadata should go in a component or an interface?
Has anyone found the most accurate way to deterministically
clock the arrival of a timing packet, that can be recognized
without decoding,
since its data content never varies? (The application I have in
mind is precise timestamping.) Is there any physical output of
the radio for the
timing of a received packet as the radio locks onto its data
transitions, or
is packet timing and recognizing all internal and a RX ready
interrupt is the earliest
output?
Take a look at the RadioTimeStamping interface. Some radio stacks
issue an event on the first data bit of a packet, right after the
preamble.
Phil
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