Hi Omar! The motes local clock is not running at exactly the same speed, that is why you see these differences.
Miklos On Tue, Nov 2, 2010 at 7:48 PM, Omar Bouzid <[email protected]> wrote: > Hi Miklos, > > I'm just wondering if you could help me please. > > I've tried to implement a similar scenario to the TestFtsp application where > three TestFtsp motes should send to the base station the local rather than > the global reception timestamps of messages broadcast by a dedicated beacon > mote programmed with RadioCountToLeds at periodic intervals (say each 1, 2 > and 4 seconds). I found that the measured intervals (the difference between > tni and tni+1 where tni and tni+1 represent, for example, local reception > timestamps of beacon 'i' and beacon 'i+1' according to the local time of mote > n) are almost the same for the three TestFtsp motes for the same beacons > (i.e. raw data of the attached table). However, by comparing the measured > intervals of the same TestFtsp mote (i.e. column data of the attached table) > I'll get noticeable differences. > > In fact, I was expecting the opposite. Could you let me know whether what I > got is wrong or not? and what is the reason for such results? > > BTW, I'm using tinyos 2.x and micaz platform and I'm not going here to test > whether the TestFtsp motes are synchronized or not. > > Thanks in advance for any help. > > Omar > > > > _______________________________________________ > Tinyos-help mailing list > [email protected] > https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help > _______________________________________________ Tinyos-help mailing list [email protected] https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
