I just tested it. Same here. Not working. Thanks for your help anyway. Any other ideas?
Cheers, Bai On Wed, Dec 17, 2008 at 12:59 PM, Hui Kang <[email protected]> wrote: > Add this line to your makefile and remove those macro. > CFLAGS=-DCC2420_DEF_RFPOWER=3 > > > - Hui > > BAI LI wrote: > >> I read the cc2420 datasheet and modified it but unluckily it still didn't >> work. I modified the following code repectivcely. >> #ifndef CC2420_DEF_RFPOWER >> #define CC2420_DEF_RFPOWER 0x1F // changed the 0x1F to 3 or 1, >> didn't work. >> #endif >> cheers, >> Bai >> ================================ >> On Wed, Dec 17, 2008 at 8:30 AM, Nitin Sharma <[email protected]<mailto: >> [email protected]>> wrote: >> >> Hi, >> >> Could you try setting it to 3 or a little higher instead and see? >> >> PA_Level 3 Output Power -25 , TXCTRL register 0xA0E3 >> >> The output power is programmable in 8 steps from approximately –24 >> to 0 dBm. >> >> Page: 9 , 52 from CC2420 Data Sheet. >> >> Thanks, >> >> On Tue, Dec 16, 2008 at 2:47 PM, BAI LI <[email protected] >> <mailto:[email protected]>> wrote: >> >> Yes, i modified the code. the default value of REPOAWER is 31 >> at the maximum in Tinyos1.15. Then I changed it to 1. I >> believe nothing changed. The node still can communicate with >> other nodes at least 15 meters. It is not that good. I will >> try to use setRFPower. Is this the right value I should change >> in order to decrease the transimission distance. I am >> confused. Anyone who has experience, please help me. THanks in >> advanced. >> >> On Tue, Dec 16, 2008 at 11:16 AM, Razvan Musaloiu-E. >> <[email protected] <mailto:[email protected]>> wrote: >> >> Hi! >> >> >> On Mon, 15 Dec 2008, BAI LI wrote: >> >> Hi All, >> Anyone can tell me where to modify the power level in >> tinyos 1.x and tinyos >> 2.x? >> >> >> In tinyos-2.x you can set the global radio power of CC2420 >> by defining the CC2420_DEF_RFPOWER to a different value or >> you can change it dynamically on a per-packet basis using >> the setPower command from the CC2420Packet interface. >> >> -- >> Razvan ME >> >> >> >> _______________________________________________ >> Tinyos-help mailing list >> [email protected] >> <mailto:[email protected]> >> >> https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help >> >> >> >> >> -- Nitin Sharma >> >> >> ------------------------------------------------------------------------ >> >> _______________________________________________ >> Tinyos-help mailing list >> [email protected] >> https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help >> > > >
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