Hi, Which components provide PacketAcknowledgements and LinkPacketMetadata interface in cc2420x stack? If I use AMSenderC and CC2420ActiveMessageC as in CTP, it does now compile as stated in the previous email.
On Sat, Jul 16, 2011 at 11:22 PM, Xiaohui Liu <[email protected]> wrote: > Thanks. > > What about packet-level time sync as stated in > TEP133<http://www.tinyos.net/tinyos-2.x/doc/html/tep133.html>? > Is there any known issue of such time sync in the default cc2420 stack? I'm > using it with CTP, but sometimes it seems even TimeSyncPacket.isValid() > returns true, the timestamp seems to be invalid (this is detected by > measurements such as time interval close to 2 ^ 32 ms). Because packet-level > time sync is based on packet timestamping, so it should have issues as well, > am I right? > > The reason why I don't use cc2420x stack with CTP yet is that it constantly > prompts compilation error: > *$/tinyos-2.1.x/tos/chips/cc2420/CC2420TimeSyncMessage.h:46: redefinition > of `nx_struct timesync_footer_t'* > *$/tinyos-2.1.x/tos/chips/cc2420/CC2420TimeSyncMessage.h:46: warning: tag > timesync_footer_t shadows enclosing struct/union/enum* > *$/tinyos-2.1.x/tos/chips/cc2420/CC2420TimeSyncMessage.h:49: conflicting > types for `timesync_footer_t'* > *$/tinyos-2.1.x/tos/lib/rfxlink/layers/TimeSyncMessageLayer.h:58: previous > declaration of `timesync_footer_t'* > > What changes are necessary to use packet-level time sync compatibly with > CTP? Thanks very much. > > On Thu, Jun 16, 2011 at 2:53 PM, Janos Sallai > <[email protected]>wrote: > >> 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 <[email protected]> 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 < >> [email protected]> >> > wrote: >> >> >> >> Is this the default cc2420 stack, or do you use cc2420x? >> >> >> >> Janos >> >> >> >> On Thu, Jun 16, 2011 at 10:49 AM, Xiaohui Liu <[email protected]> >> 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 <[email protected]> >> wrote: >> >> >> >> >> >> Telosb. >> >> >> >> >> >> On Wed, Jun 15, 2011 at 4:54 PM, Hamid Rafiei < >> [email protected]> >> >> >> wrote: >> >> >>> >> >> >>> Hi, >> >> >>> >> >> >>> What is the platform you are using? >> >> >>> >> >> >>> >> >> >>> >> >> >>> >> >> >>> >> >> >>> Regards, >> >> >>> >> >> >>> >> >> >>> Hamid Rafiei Karkvandi >> >> >>> >> >> >>> >> >> >>> >> >> >>> >> >> >>> >> >> >>> On Wed, Jun 15, 2011 at 2:36 PM, Xiaohui Liu <[email protected]> >> 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 >> >> >>>> [email protected] >> >> >>>> >> >> >>>> >> https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help >> >> >>> >> >> >> >> >> >> >> >> >> >> >> >> -- >> >> >> -Xiaohui Liu >> >> > >> >> > >> >> > >> >> > -- >> >> > -Xiaohui Liu >> >> > >> >> > _______________________________________________ >> >> > Tinyos-help mailing list >> >> > [email protected] >> >> > >> https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help >> >> > >> > >> > >> > >> > -- >> > -Xiaohui Liu >> > >> > > > > -- > -Xiaohui Liu > -- -Xiaohui Liu
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