Hello, I'm confused about the radio of IRIS.
The manual says "The 802.15.4 radio includes a DSSS baseband modem proving a spreading gain of 9 dB" and "the radio used by the IRIS is an IEEE 802.15.4 compliant RF transceiver" . So, if a iris node occupies the channels 11, does it just occupy one channel? or, does it occupy multiple channels because it used DSSS? Can anyone explain it to me? Thanks a lot. Regards, Haixia ________________________________________ From: András Bíró [[email protected]] Sent: Wednesday, May 16, 2012 1:58 AM To: Li, Haixia-OSU Stillwater Cc: [email protected] Subject: Re: [Tinyos-help] change radio frequency Hi, The iris mote has rf230 radio. Most of it defines are described in $TOSDIR/chips/rf230/README. For channel changing, use this: CFLAGS += -DRF230_DEF_CHANNEL=24 Andris On Tue, May 15, 2012 at 10:33 PM, Li, Haixia-OSU Stillwater <[email protected]> wrote: > I'm using Tinyos 2.1. Thanks. > > Any help will be appreciated. > > Haixia > ________________________________ > From: [email protected] > [[email protected]] on behalf of Li, Haixia-OSU > Stillwater [[email protected]] > Sent: Tuesday, May 15, 2012 3:27 PM > To: [email protected] > Subject: [Tinyos-help] change radio frequency > > Hello all, > > I want to change the radio frequency of IRIS from 2.405GHz to 2.470GHz. How > do I change it? I searched the topic from this mail list, and I used > > *PFLAGS += -DCC2420_DEF_CHANNEL=24* > > and > > GOALS += freq,2470 > > However, I found the frequency still is 2.405GHz. I used a spectrum analyzer > to trace the single. > > > _______________________________________________ > 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
