First of all, thank you Ben for replying. Are these functions you
mentioned in your message the extended functions which are not included
in the basice Timer functions? Can I still use the standard interface
Timer in the declaration in the module? Thank you very much!
Best regards,
Ruoshui
Message: 2
Date: Tue, 20 Nov 2007 15:13:56 -0000
From: "Murray, Ben" <[EMAIL PROTECTED]>
Subject: RE: [Tinyos-help] How to set a particular point to start the
time r?
To: "'Ruoshui Liu'" <[EMAIL PROTECTED]>,
[email protected]
Message-ID:
<[EMAIL PROTECTED]>
Content-Type: text/plain; charset="iso-8859-1"
Sounds like you want the timer to "count from" the receiver ACK rather than
to count "up to" it? You can call the Timer start/stop/startAt functions
anywhere in your code. Just call the timer.startPeriodic .startOneShot
.startPeriodicAt, etc function when you receive the ACK. Check out the timer
docs (tep102) for more functionality etc.
Regards,
Ben
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] Behalf
Of Ruoshui
Liu
Sent: 20 November 2007 01:17
To: [email protected]
Subject: [Tinyos-help] How to set a particular point to start
the timer?
I am working on a project to set up a single radio link
between one transmitter and one receiver. I want to have the
transmitter start synchronising with the receiver at the time
when the receiver is
switched on and an acknowledgement is received by the
transmitter, so I need to have a Timer to count up when the
synchronisation happens. As we know, normally we start the
timer at the begining of the application, can we set the time
to start counting when the synchronisation occurs? In this
case, I won't start the timer until the acknowledgement from
the receiver is recieved by the transmitter. How can this be
done in coding? Could anyone help me with this please?
Thanks a lot!
Ruoshui Liu
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