Hi, OK, So the problem is about short delay between the transmissions. Grateful for your answer.
Best regards, Maissa Ben Jamaâ 2009/7/19 Michael Schippling <[email protected]> > I found the "retraction period" to be significant in my > reliability testing that I've previously ref'ed. Things > were greatly improved by putting a small delay between the > reception of a message and the sending of a new message > at the host end. I don't know if this a host effect or > slow switching from receive to xmit on the radio end. > It was much more pronounced on the mica2's than the 'Z's. > I didn't do any extensive testing with the telosb. > > MS > > Maisa Ben Jamaa wrote: > >> Hi, >> Umm, so this can be like a collision that was being happening over the >> serial communication channel. >> Thank you Faisal >> >> 2009/7/18 Faisal Aslam <[email protected] <mailto: >> [email protected]>> >> >> Hi, >> >> I also have this error if I send packet from mote too fast (Usually >> in a loop). If you can have a small delay between packets being send >> from mote then you will have lesser bad packets errors. >> >> best regards, >> Faisal >> >> Maisa Ben Jamaa wrote: >> >> Hi, >> >> If tinyos reports a lot of bad packet messages during a pc and >> sensor mote >> communication based on an usb connection, so in your opinion why >> this, >> is happening? >> >> Precisely, what causes that the *packet crc* is different from >> the computed one? >> (more details can be found in Packetizer.java file) >> >> Best regards, >> Maissa Ben Jamaa >> _______________________________________________ >> Tinyos-help mailing list >> [email protected] >> <mailto:[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 >> >
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