Group ID is checked in software. CC2420 chip only cares about address. On 3/24/08, Greg Hackmann <[EMAIL PROTECTED]> wrote: > > Dodda Venkatappa Manjunath wrote: > > As the TOS_GROUP_ID is written into CC2420's RAM (m_pan in writeId() > > of CC2420ControlP ), I am wondering whether a message that does not > > belong to the > > node's GROUP is dropped in a software component or CC2420 chip. I was > > not able to find the corresponding code in any of the software > > components consituting CC2420 based AM stack. > > The CC2420 chip has a feature called hardware address recognition, which > will automatically drop any packets addressed to another node (including > nodes in other AM groups). TinyOS's CC2420 stack enables this feature > by default. It can be disabled at compile-time by #defining > CC2420_NO_ADDRESS_RECOGNITION, or at runtime by calling the > setAddressRecognition() command on CC2420ControlC's CC2420Config > interface. > > Greg Hackmann > _______________________________________________ > Tinyos-help mailing list > [email protected] > https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help >
-- Renjie Huang Sensorweb Research Laboratory http://sensorweb.vancouver.wsu.edu/ Washington State University
_______________________________________________ Tinyos-help mailing list [email protected] https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
