You would need a Real Time module and implement some sort of syncronization
algorithm it yourself. There is no way for the microcontroller to guess the
current time of day.
On Fri, Feb 24, 2012 at 10:50 AM, Zhonghua <zhong...@sics.se> wrote:
> Hi all,
>
> I want to get a time which resolution should be microsecond on Tmote Sky.
> In my host computer and another platform E100 USRP I can use the function
> of gettimeofday(). But through mspgcc-4.5.3, the gettimeofday() is not
> accepted. Even after I added the time.h from my host computer's include/sys
> directory into /usr/local/msp430/include/sys/**, it shows "undefined
> reference to 'gettimeofday'. I checked the new added time.h, it uses an
> external function definition, which means it will rely on an external
> function do implement the practical function. But it seems this real
> external function is not existing in mspgcc. I wrote the function as
> http://svn.cod3r.com/a52codec/**trunk/liba52/src/gettimeofday.**c<http://svn.cod3r.com/a52codec/trunk/liba52/src/gettimeofday.c>directly,
> but the ftime() function in the invoked timeb.h is still an
> external function. I guess maybe I haven't install some necessary lib. I
> checked I have no gnulib, I don't know does it matter?
> I have spent too much time on that. Does anybody know how to get a
> relatively precise resolution time on Tmote Sky? Thanks in advance!
>
> Sincerely,
>
> Zhonghua
>
>
> ------------------------------------------------------------------------------
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--
--------------------------------------
Sergio Campamá
sergiocamp...@gmail.com
------------------------------------------------------------------------------
Virtualization & Cloud Management Using Capacity Planning
Cloud computing makes use of virtualization - but cloud computing
also focuses on allowing computing to be delivered as a service.
http://www.accelacomm.com/jaw/sfnl/114/51521223/
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