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 _______________________________________________ Tinyos-help mailing list [email protected] https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
