On Jun 13, 2006, at 9:34 AM, Adam wrote:
The easiest thing is to use GenericCom, you can enable ACk by call enableACK() command. For SP, maybe it is a good stuff, but it will take many efforts to understand the mechanism, since there is no good documentation on that -- the SP paper is high level, not much help to programming.
One note: the Boomerang SP implementation uses a different ACK mechanism than the 1.x and 2.x CC2420 TinyOS stacks. The TinyOS stacks use hardware-generated ACKs. This has the nice property that they are timed precisely but the drawback that you can't snoop on unicast messages. SP sends ACKs from software; the drawback (and I've observed this happen) is that you can get false positives: since you sacrifice the precise timing, the software stack sometimes ACKs packets that it shouldn't. The benefit is that SP can snoop on unicast messages.
Phil _______________________________________________ Tinyos-help mailing list Tinyos-help@Millennium.Berkeley.EDU https://mail.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
