Hi Diego, On Wednesday 25 April 2007 07:39, Diego Bartolomé Arquillo wrote: > Hi all, > I'm doing some measurements about the tmote-sky consumption when the radio > is off. I get a 150 microA current aprox. and that value is not in > agreement with the LPM3 consumption (2 microA aprox.). Does anyone know how > and where TinyOS control/change the MSP430 low-power mode?. Is the LPM3 the > selected mode by TinyOS when only the TimerC component is running in the > micro? Thanks in advance.
I can vouch for tos2 doing the right thing on msp430 WRT sleep, at least for our custom MSP platform. We had some Crossbow motes to play with last year and they worked out too. You can see the sleep code at $TOSDIR/chips/msp430/McuSleepC.nc. The code will set LPM3 unless certain current conditions require a higher-power mode (like Timer A running). The reading you are getting looks suspiciously like CMOS gate leakage. One common way this can happen is if an msp430 pin is set to input but is left floating (unconnected, or all the net's drivers are hi-z). Perhaps you are seeing what Philip Levis reported last month: http://mail.millennium.berkeley.edu/pipermail/tinyos-devel/2007-March/001630.html Steve _______________________________________________ Tinyos-help mailing list [email protected] https://mail.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
