On Mon, Aug 26, 2013 at 7:44 AM, Janos Sallai <[email protected]>wrote:
> Sarah, > > Just to clarify this issue a bit: there is no mechanism in TinyOS that > would allow the receiver to query what the transmitter's TX power > setting was. > > CC2420Packet.getPower(msg) should only be called by the transmitter, > _before_ calling AMSend.send(msg). All other uses would result in an > undefined return value. > > Nothing prevents you from writing the transmit power value into the > payload, though. That way, the receiver would get it for sure... if > that's what you want to achieve. > I would just like to reiterate that it is unclear what value knowing the transmitter's transmit number would have. It is relative to the transmitter's context. > > Janos > > On Sat, Aug 24, 2013 at 12:54 PM, Sarra Sarah <[email protected]> wrote: > > I want to set transmit power for cc2420, so i did that: > > > > I added this line on make file: CFLAGS +="-DCC2420_DEF_RFPWER=1" > > and then i wanted to read transmit power in receiving the packet i used > > call CC2420Packet.getPower(msg), but transmit power is 0x00. i dont know > > where is the problem. > > > > Thank you for help !! > > > > _______________________________________________ > > 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 > -- Eric B. Decker Senior (over 50 :-) Researcher
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