Looks like a pretty good article, do you have it posted someplace such that google can find it? And could you put a link to it on docs.tinyos.net?
In skimming it, the swapping of 7E's and 7D's with two byte sequences is called "escaping" in the TOS code. You might add that to your doc. thx MS Luis Felipe Herrera Quintero wrote: > Hello Michael!! > > I sent you an article where is an explanation about the frame , remember > that the message is a structure and you can change it if you want > Best regards > > Michael Schippling escribió: >> It's pretty straight-forward, if you know most or all of the TOS >> tricks... >> octavetech.com used to have a nice page explaining it but it seems to >> have >> gone missing. Using the T1 TOS_Msg struct from tos/types/AM.h and the >> afore-mentioned tricks: >> >> 7e | 42 | ff ff ff ff | 04 | 7d 5d | 08 | >> 00 00 00 00 00 00 00 01 | 52 ca | 7e >> >> sync | mtype | addr | group | length | >> data | crc | sync >> >> Note that group is "escaped" so takes two bytes and your length >> is 8 bytes so you must be sending an int32 value of 1. Normally >> one doesn't see the sync and mtype (system message type) bytes >> or the crc field in a message buffer delivered from the lower >> level TOS Java code. I think you may have used ListenRaw rather >> than Listen to get this data? >> >> MS >> >> >> trilok i wrote: >> >>> hi all, >>> >>> Can anyone explain how to analyse the below packet. I have enabled >>> TinySec and captured packet using /opt/tinyos-1.x/tools/src/listen >>> with mode = TINYSEC_AUTH_ONLY. >>> My data is 01 . And what about other fields? >>> >>> 7e 42 ff ff ff ff 04 7d 5d 08 00 00 00 00 00 00 00 01 52 ca 7e >>> >>> >>> ------------------------------------------------------------------------ >>> Get easy photo sharing with Windows Live™ Photos. Drag n’ drop >>> <http://www.microsoft.com/india/windows/windowslive/photos.aspx> >>> >>> >>> ------------------------------------------------------------------------ >>> >>> _______________________________________________ >>> Tinyos-help mailing list >>> [email protected] >>> https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help >>> >> _______________________________________________ >> Tinyos-help mailing list >> [email protected] >> https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help >> >> __________ NOD32 3850 (20090213) Information __________ >> >> This message was checked by NOD32 antivirus system. >> http://www.eset.com >> >> >> >> > > _______________________________________________ Tinyos-help mailing list [email protected] https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
