Hi Avinash， Thank you for your quick replay！ If it is that case，when one node implements CFLAG += -DLOW_POWER_LISTENING，the other not ，it means the application can not work as BMac expected！Right ？ Oh ，I have another question to bother you，in tep2 has the words： Hardware Abstraction Architecture (HAA)for TinyOS 2.0 ，it means only tinyos 2.0 ，not other version in tinyos2.x？？
Thank you for your help！！ Sincerely yours wkq 在2009-02-22，"Avinash Sridharan" <[email protected]> 写道： >The default is the CSMA/CA . Please correct me if I am wrong BMAC is >effectively LPL (low power listening) which is also implemented as >part of the CC2420 CSMA. However LPL is not turned on by default. For >turning on LPL you need to include the following CFLAG in your app >make file. > >CFLAG += -DLOW_POWER_LISTENING > > >-Avinash > >2009/2/21 wkq5325 <[email protected]>: >> Hi all， >> I have checked the files in tinyos help about Mac in tinyos2.1，but still >> something can not beunderstood。 >> In CC2420 chip the mac protocol is BMac or Csma/CA, the defult is which >> one? In C:\cygwin\opt\tinyos-2.x\tos\chips\cc2420 >> I can only find csma. If not BMac,How can I implement BMac？ >> >> Thank you very much for your consideration。 >> Sincerely yours， >> wkq >> >> >> >> >> >> ________________________________ >> 网易邮箱，中国第一大电子邮件服务商 >> _______________________________________________ >> Tinyos-help mailing list >> [email protected] >> https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help >> >> > > > >-- >Phd Dept. of Electrical Engineering >University of Southern California >http://www-scf.usc.edu/~asridhar
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