[Tinyos-help] Tr : calculate Time in seconds

[Michael Schippling]

Nope, still not entirely clear (to me anyway).
In T1 there is a Clock interface, but it does not
have a clock() method. However the interface file
contains some detailed (!what a surprise!) information
about what the counts might mean...if you know how
it is setup. I also don't find a clock_t type in T1...

How is your clock() method wired?
And what platform are you using?

Also there's probably no need to use a float for the result
time as the counts are most likely some kind of int.

MS

Rannouna Rania wrote:
> 
> Hi,
> 
> I used :
> clock_t  initial_time;
> clock_t  final_time;
> float CPU_time;
> In my code ;
> initial_time= clock();
> tate(mip,P,Q,res);// I need to know the time required by this function
> final_time=clock();
> CPU_time=final_time - initial_time;
> if I display on the PC this value (CPU_time)  I found 15,000 (I think 
> clock ticks but I want in seconds).
> I hope that is more clear now.
> Thank you very much.
> Best Regards,
> Rania 
> 
> ----- Message transféré ----
> *De :* Eric Decker <cire831 at gmail.com>
> *À :* Rannouna Rania <rrannouna at yahoo.fr>
> *Cc :* tinyos-help at millennium.berkeley.edu
> *Envoyé le :* Lundi, 4 Mai 2009, 23h35mn 50s
> *Objet :* Re: [Tinyos-help] calculate Time in seconds
> 
> If you are using TimerMilli or LocalTimeMilli each tick is a binary 
> millisec.  There are 1024 per second.
> 
> Not sure from your description what you are trying to do.  Can you be 
> clearer?
> 
> e
> 
> On Mon, May 4, 2009 at 1:33 PM, Rannouna Rania <rrannouna at yahoo.fr 
> <mailto:rrannouna at yahoo.fr>> wrote:
> 
>     Hi all,
> 
>     Thank you all for your Kind response and your help.
>     In fact I am new in tinyos, so that sometimes I ask questions that
>     seem maybe evident.
>     Now my problem is that I want to calculate the time needed by my
>     application in seconds.
>     I succed to calculate it in clock ticks.
>     Have you any idea how can I do this? I guess  I should use the
>     SimpleTime component but I can't understand  how to use it (I am
>     going to use the telosb).
>     Thank you very much in advance.
>     Best Regards,
>     Rania
> 
> 
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> 
> 
> 
> -- 
> Eric B. Decker
> Senior (over 50 :-) Researcher
> Autonomous Systems Lab
> Jack Baskin School of Engineering
> UCSC
> 
> 
> 
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