Although the "LOW_POWER_LISTENING" compiler flag will add in the low power listening layer into the radio stack, some other functionality needs to exist to tell it what to do.
Currently, CTP does not instruct the radio stack to use low power listening. To make it happen, right now developers have to manually edit the CTP library, accessing the LowPowerListening interface and setting up parameters like LowPowerListening.setLocalSleepInterval(<ms>) and LowPowerListening.setRxSleepInterval(&msg, <ms>). We're somewhat in the process of developing a layer that will automatically configure CTP packets (and others) for some default low power listening usage model, but it's looking to be awhile before it's complete. -David -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Xiaofan Jiang Sent: Friday, November 02, 2007 3:41 PM To: Tinyos Help Subject: [Tinyos-help] CTP with and without LPL enabled on MicaZ Hi, I'm trying to run some power measurements of motes running CTP collection with and without LPL enabled (on the MicaZ). However, I don't seem to see any difference. In this picture - http://buzzing.cs.berkeley.edu/~xjiang/webfiles/NOLPLvsLPL.png , the left is without LPL and the right is with. The lines with positive slopes are energies and the flat ones are powers, of four different motes. Does anyone know if I need to do anything other than including "LOW_POWER_LISTENING" in the CFLAGS in the Makefile to enable LPL? Also has anyone had any experiences with LPL on MicaZs? Thanks! -Fred _______________________________________________ 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
