[Tinyos-help] Precise contents and length of the 802.15.4 frames (and most especially with the TestNetwork App)

[John Griessen]

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?

Thanks,

John Griessen