Yes, you are correct. Thanks for suggesting the changes -- can you check out 5215 and verify that this fixes the problem?
Thanks, Steve On Thu, Nov 4, 2010 at 9:34 PM, Silvan Nellen <nel...@cmc.ca> wrote: > Hello, > > > > I have two issues regarding revision 5214 (the newest at the time of > writing) of the trunk (https://tinyos-main.googlecode.com/svn/trunk): > > > > 1. > > After updating from revision 5160 to 5214, Zigbee communication stopped > working on Shimmer. Using a Zigbee packet sniffer I found out that all > updated nodes send packets with the length field of the header set to an > invalid value. After looking at the source code of the CC2420 driver > (Shimmer uses CC2420) I found the reason why: the code that sets the length > field in the header had been commented out > (/trunk/tos/chips/cc2420/csma/CC2420CsmaP.nc, line 136)! The change was > introduced in r5174. > > > > Am I missing something or is this a serious bug that needs to be fixed ? > > > > 2. > > Another CC2420 related issue is that the fcf field in the header is not set > in some cases. In the current version of the trunk the fcf field is set in > the RadioResource.granted() event handler in > /trunk/tos/chips/cc2420/csma/CC2420ActiveMessageP.nc. However this event is > not triggered if access to the radio is granted immediately (line 104), in > this case fcf remains uninitialized! > > > > Why was the initialization fcf code moved from the Send.send() command in > tos/chips/cc2420/csma/CC2420CsmaP.nc to RadioResource.granted() ? What would > be the cleanest way to fix this ? Move the initialization code back to > CC2420CsmaP.nc? > > > > Regards, > > Silvan Nellen > > _______________________________________________ > Tinyos-help mailing list > Tinyos-help@millennium.berkeley.edu > https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help > -- stephen dawson-haggerty http://cs.berkeley.edu/~stevedh uc berkeley wireless and embedded systems lab berkeley, ca 94720 _______________________________________________ Tinyos-help mailing list Tinyos-help@millennium.berkeley.edu https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
