Hi, Agnelo Silva a écrit : > Altering the default value 29 of the constant TOSH_DATA_LENGTH in AM.h > file (it is also possible, and recommended, to do this in the Makefile > of the application directory), I verified that it is possible to change > the payload data of our TOS message. > > I made some tests and found the exact limits: inferior 10 and superior > 150. So, after these tests, 2 questions arose: > 1) Where is defined these limits? Any platform dependency (I supposed so)? well for 802.15.4 platforms the ieee standard limits the maximum packet size (to 128 IIRC), the minimum is probably platform/application dependent ...
> 2) What are the final "size" of the packet, considering that I already > know the TOS message format to use? The question is related to any > possible low level 'stuff' that could be added by the link and physical > layers. Any tip or suggestion about additional reading here would be > very appreciated. look at the message.h and platform_message.h (i.e. under tos/platforms/micaz/ for micaz) for details but TEP 111 [1] has probably all the information you would need. Cheers Aurélien [1] http://www.tinyos.net/tinyos-2.x/doc/html/tep111.html _______________________________________________ Tinyos-help mailing list [email protected] https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
