Hi! On Wed, 28 Jun 2006, Martin Turon wrote:
> > Hi Razvan, > > If you put the ATmega128L to extended standby, you should measure ~20uA. > > If the cc2420 radio oscillator is still on (but radio is in standby) you > should measure a total system power of ~50uA. Thank you Martin! :-) So the values I'm getting are indeed too high. The question is: where is the problem? Could someone at least check the value for Blink? -- Razvan ME > -----Original Message----- > From: [EMAIL PROTECTED] > Sent: Tuesday, June 27, 2006 3:15 PM > To: [email protected] > Subject: [Tinyos-help] current consumption on MicaZ in tinyos-2.x > > Hi! > > I'm trying to verify the current consumption on MicaZ and here are some > results that I would like some feedback. :-) > > The first test I did was to run the Blink application and measure > the current when the leds where off. The result was 0.14mA. > > The next test was to change the Scheduler.taskLoop code in > tos/SchedulerBasicP.nc to put the mote in different power saving modes. > The code I used, for entering in Extended Standby mode for example, was: > > command void Scheduler.taskLoop() > { > for (;;) > { > MCUCR = > (MCUCR & 0xe3) | 1 << SE | (1 << SM2) | (1 << SM1) | (1 << SM0); > > sei(); > asm volatile ("sleep"); > cli(); > } > > The results I got are: > - Idle: 3.94mA > - ADC NR: 1.35mA > - Power Down: 0.13mA > - Power Save: 0.13mA > - Standby: 0.27mA > - Extended Standby: 0.27mA > > I performed the measurement using a Extech Multimeter [1] and I waited > till the current stabilized. I power the mote using a 3V power source. The > application I run is an empty one (just one component, MainC). > > So my question is: can someone confirm/infirm the above values? :-) > > And one more thing: I have a few MicaZ motes burned with some old code (a > monitoring application) that achieves 0.07mA in the sleep mode. I tried to > recompile the application with the current tinyos-1.x and the current > consumption I got is 0.5mA. In the same tinyos-1.x I also run a Blink > application which calls PowerManagement.enable() in the init() and I got > 0.14mA. Does anyone has any idea about what is the cause of the > difference? :P > > [1] http://www.radioshack.com/product/index.jsp?productId=2104750 > > Have a nice day! > Razvan ME > > _______________________________________________ Tinyos-help mailing list [email protected] https://mail.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
