I am not aware of anyway using the cc2420 h/w to get access to manipulating the preamble.
So I would say no it isn't possible. Can you send me a copy of the paper "Packet Combining in Sensor Networks" and I'll see if I can figure out what they were doing. On Mon, Jun 16, 2014 at 7:31 AM, 俞杰 <[email protected]> wrote: > Hello everyone, > > I've recently read a paper called "Packet Combining in Sensor > Networks(SenSys'05)" which relates to error correction. > What confuses me is the operations they did to preamble. > In the experiment they did ,"the received preamble was also dumped out > along with each packet". > And in the implementation , " we embed the type of each packet(parity or > plain) in the preamble so that it does not require additional bits." > It seems that we can read and define the content of preamble in tinyos . > > But when I check the CC2420 datasheet , it says > "the preamble and start of frame delimiter are generated by hardware"(p17 > of 85), > "the preamble sequence is defined to be 4 bytes of 0x00" and "the preamble > length and SFD is configurable"(p36) > It never says the content of preamble is configurable! > > So my question is : > Is it possible to read or configure the content of preamble in CC2420 > based radio?And if possible,how? > > Best regards, > Jay > _______________________________________________ > Tinyos-help mailing list > [email protected] > https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help > -- Eric B. Decker Senior (over 50 :-) Researcher
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