[Tinyos-help] Re: Very strange problem!

AIGroup gruppodinfo at gmail.com
Sat Feb 9 08:52:12 PST 2008


I use TOS 2.0

2008/2/9, AIGroup <gruppodinfo at gmail.com>:
>
> Another strange thing:
> I'm comparing my code with the app.c file which contains the parsed code.
> The line
> temp=((chosen[j]>=temp) ||  inconsistent[j] || (j == heldout));
>
> where temp is an integer, is parsed in
> temp = (chosen[j] >= temp || inconsistent[j]) || j == heldout;
> which is different from the the original!!!!
> So, are my problems caused by this uncorrect parsing?
>
>
>
> 2008/2/9, AIGroup <gruppodinfo at gmail.com>:
> >
> > Hi all,
> >
> > I implemented an algorithm for regression based on SVM.
> > I tested all using Tossim and now I would like to verify the results
> > using a micaz mote.
> > I send the firmware to the mote but I have the following problem:
> > when mote boots with the event (called with Timer0.startOneShot( 250 ) )
> > -----
> > event void Timer0.fired()
> > {
> >     call Leds.led1On();
> >     ComputeSVM();
> >     call Leds.led2On();
> > }
> > -----
> >
> > I see the green led (led1)  toggling!!! (I never see led2On)
> > Why?????
> > I have verified that the problem is inside a function of mine which is:
> > ----
> > long compute_index(long int *binfeature, long int range, long int
> > *index)
> > {
> >   int i=0,ii=0;
> > /*THE PROBLEM IS HERE: IF I PUT A NUMBER (e.g. 2) INSTEAD OF range THE
> > STATEMENT for WORKS WELL */
> >   for(i=0;i<range;i++) /* <----T
> >   {
> >     if(binfeature[i])
> >     {
> >        index[ii]=i;
> >        ii++;
> >     }
> >   }
> >   /* THE PROBLEM IS ALSO HERE WITH i AND ii VARIABLES
> >   for(i=0;i<4;i++) { <--------------------
> >     index[ii+i]=-1;
> >   }
> >   return ii;
> > }
> >
> > ------
> > I hope you can help me.
> > Thanks in advance.
> >
> > Roberto
> >
>
>
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