Timestamping has known issues in the default cc2420 stack (telosb, micaz, etc.) under heavy load. Try using the cc2420x stack. Compile with "make telosb cc2420x". You'll need the latest sources from google code.
Janos On Thu, Jun 16, 2011 at 1:34 PM, Xiaohui Liu <whu...@gmail.com> wrote: > I'm using the default one, I'm not sure how to use cc2420x. > > On Thu, Jun 16, 2011 at 1:50 PM, Janos Sallai <sal...@isis.vanderbilt.edu> > wrote: >> >> Is this the default cc2420 stack, or do you use cc2420x? >> >> Janos >> >> On Thu, Jun 16, 2011 at 10:49 AM, Xiaohui Liu <whu...@gmail.com> wrote: >> > Can anyone please give me some hint on what may be the cause? I'm stuck >> > here. I really appreciate your assistance. >> > >> > On Wed, Jun 15, 2011 at 4:57 PM, Xiaohui Liu <whu...@gmail.com> wrote: >> >> >> >> Telosb. >> >> >> >> On Wed, Jun 15, 2011 at 4:54 PM, Hamid Rafiei <hamid.raf...@gmail.com> >> >> wrote: >> >>> >> >>> Hi, >> >>> >> >>> What is the platform you are using? >> >>> >> >>> >> >>> >> >>> >> >>> >> >>> Regards, >> >>> >> >>> >> >>> Hamid Rafiei Karkvandi >> >>> >> >>> >> >>> >> >>> >> >>> >> >>> On Wed, Jun 15, 2011 at 2:36 PM, Xiaohui Liu <whu...@gmail.com> wrote: >> >>>> >> >>>> Hi everyone, >> >>>> >> >>>> I'm using PacketTimeStamp interface to timestamp packet transmission >> >>>> and >> >>>> reception, but I find isValid() returns FALSE more than 90% of the >> >>>> time. Can >> >>>> anyone help me understand what may go wrong? I'm timestamping in >> >>>> sendDone() >> >>>> and receive() event only and sending 1 packet per second. Any help is >> >>>> appreciated. >> >>>> -- >> >>>> -Xiaohui Liu >> >>>> >> >>>> _______________________________________________ >> >>>> Tinyos-help mailing list >> >>>> Tinyos-help@millennium.berkeley.edu >> >>>> >> >>>> https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help >> >>> >> >> >> >> >> >> >> >> -- >> >> -Xiaohui Liu >> > >> > >> > >> > -- >> > -Xiaohui Liu >> > >> > _______________________________________________ >> > Tinyos-help mailing list >> > Tinyos-help@millennium.berkeley.edu >> > https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help >> > > > > > -- > -Xiaohui Liu > _______________________________________________ Tinyos-help mailing list Tinyos-help@millennium.berkeley.edu https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
