Are you compiling in the low power listening layer with the stack? By default it is not there to save ROM for apps that don't need it. Add "lpl" to your make command, like "make telosb lpl" or just add "CFLAGS+=-DLOW_POWER_LISTENING" to your Makefile to add in the LPL layer. You'll see a warning telling you the LPL layer has been compiled in.
You should only have to call setLocalSleepInterval once at the start of your application. After that, the layer in the radio stack responsible for managing radio power will automatically put the radio back to sleep when no more activity is found on the channel. The amount of time the radio is awake after activity is programmable by editing the DELAY_AFTER_RECEIVE preprocessor variable found in DefaultLpl.h (in the latest stack version). -David -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Rediviva Goth Sent: Thursday, September 25, 2008 12:18 PM To: tinyos-help@millennium.berkeley.edu Subject: [Tinyos-help] CC2420 energy consumptions Hi to all I am an engineering student and I'm studying consumptions for the CC2420 radio. I have noticed that energy consumptions are very high and I tried to use LPL interface to reduce consumptions. In my test program I switched the radio, I set the timer and when it is called the event fired I send data to another mote. Every time I send data invoke the command setLocalSleepInterval to avoid unnecessary energy consumptions of radio, but consumption remains unchanged. How should I use interface LPL? someone can show me an example code if it is possible? Thank you Sarah Rediviva _______________________________________________ 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
