Thank you for your feedback. I've been reading the post and it speaks about the pin 25 configuration. The new tmote-sky datasheet revision (v1.04 - 11/13/06) puts that pin to DVCC through a 2.2K resistor. In my tmote/sky (H014-4787 0549 version) this pin is floating so I'm going to connect the pin 25 as the new datasheet version says. BR, Diego
-----Mensaje original----- De: Steve McKown [mailto:[EMAIL PROTECTED] Enviado el: jueves, 26 de abril de 2007 0:11 Para: [email protected] CC: Diego Bartolomé Arquillo Asunto: Re: [Tinyos-help] How to change the LPM in MSP430 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
