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 [andras.b...@unicomp.hu] Sent: Wednesday, May 16, 2012 1:58 AM To: Li, Haixia-OSU Stillwater Cc: tinyos-help@millennium.berkeley.edu 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 <hai...@ostatemail.okstate.edu> wrote: > I'm using Tinyos 2.1. Thanks. > > Any help will be appreciated. > > Haixia > ________________________________ > From: tinyos-help-boun...@millennium.berkeley.edu > [tinyos-help-boun...@millennium.berkeley.edu] on behalf of Li, Haixia-OSU > Stillwater [hai...@ostatemail.okstate.edu] > Sent: Tuesday, May 15, 2012 3:27 PM > To: tinyos-help@millennium.berkeley.edu > 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 > Tinyos-help@millennium.berkeley.edu > https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help _______________________________________________ Tinyos-help mailing list Tinyos-help@millennium.berkeley.edu https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
