[Tinyos-help] sendDone() called before receive

[Faisal Karim]

Hi Bibudh

1) Thats true, I also dont know the answers yet :-) after these experiments I'll try them on real motes as well.
2) For second problem you are right and that was the reason I asked the question on list. And one interesting observation is the difference between receive() and sendDone() is always 31 seconds within single hop.
I was thinking to start considering the timing from send() instead of sendDone() by this the processing time, queuing time etc will also be considered. One concern can be than may be the send() will not send packet(collisions etc), so to hack around im thinking to put some sort of sequence no. or identifier in packet at src than check that on receiver.

Any suggestion
 
Regards 
Faisal

 
       




----- Original Message ----
Date: Mon, 2 Apr 2007 14:04:34 -0500
From: "Bibudh Lahiri" <bibudh at gmail.com>
Subject: Re: [Tinyos-help] sendDone() called before receive
To: tinyos-help at millennium.berkeley.edu
Message-ID:
    <e522914f0704021204k61a21422y48874c4e8b469f2a at mail.gmail.com>
Content-Type: text/plain; charset="iso-8859-1"

Hi Faisal,
     As an idea, it sounds OK, but I'd like to mention a thing or two:

1) I'm not sure how close this would be to the transmission delay that u'd
obtain on real motes
2) If the problem of receive() being called in the receiver before
sendDone() being called in the sender persists (as u reported), then u'll
have a problem.









 
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