Fwd: [Tinyos-help] Accessing the mote clock time and display in PC

Joe Polastre joe.polastre at gmail.com
Sun Mar 13 17:53:16 PST 2005


The MSP430 has TimerC.LocalTime which is the free-running clock. 
There is no equivalent interface for the Mica* or PC platforms.

-Joe


On Mon, 14 Mar 2005 10:05:05 +0800, santos <skdas at i2r.a-star.edu.sg> wrote:
>  Hi Vijai,
> 
> Other than accessing of the Timer value there must be a hardware clock
> inside the mica mote right.
> Is it possible to access that hardware clock directly?? Just to print the
> hardware clock time.
> 
> Thank you,
> Santos
> 
> -------Original Message-------
> 
> From: Vijai
> Date: Monday, March 14, 2005 8:53:43 AM
> To: tinyos-help at Millennium.Berkeley.EDU
> Subject: Fwd: [Tinyos-help] Accessing the mote clock time and display in PC
> 
> A shot in the dark:
> 
> 1. Set up a timer for some period X
> 2. When the timer fires, send a radio message or a UART message to be
> read on the PC.
> 3. For every such message, you have a "mote time", "pc time" pair.
> Regression over a number of samples should give you an estimate of the
> mote time at any instant.
> 
> You might want to build a new applet in VU's message center
> application to do this. There is an existing one built for VU's time
> sync and you could take a look at it as well.
> 
> hth,
> 
> -vijai.
> 
> > On Sun, 13 Mar 2005 19:35:31 +0800, Santos Kumar Das
> > <skdas at i2r.a-star.edu.sg> wrote:
> > Hi,
> >
> > Can I get the source code to access the mote clock and display in PC??
> >
> > Thank you,
> > Regards,
> > Santos
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