See the CC2420 datasheet. It will clarify the situation. -Joe
On 11/25/05, Martin Gercke <[EMAIL PROTECTED]> wrote: > Hi, > > I am wondering why data[length-1] and data[length-2] are used to get > these values (lqi, strength, crc) in RXFIFODone (CC2420RadioM.nc) for Telos. > Since the CC2420 calculates the crc-values I thought I wouldn't get any > crc-informations on the receving end as well. > And for the lqi and strength values. > Is this just appended by the CC2420 to let me know about the link quality? > > Also I was wondering about the (length > MSG_DATA_SIZE) check. > If 2 additional bytes(lqi, strength) are added to the actually received > data this should be correct at the beginning of : > rxbufptr->length == length -2 > and MSG_DATA_SIZE is the maximum of rxbuf-ptr-length, right? > > > Martin > _______________________________________________ > Tinyos-devel mailing list > [EMAIL PROTECTED] > https://mail.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-devel > _______________________________________________ Tinyos-help mailing list [email protected] https://mail.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
