Charles,
I just measured the iris power consumption, and it appears to be about 30uA
when the mote sleeps.
I modified apps/Null/NullAppC.nc as follows:
configuration NullAppC{}
implementation {
components MainC, NullC;
#ifdef PLATFORM_IRIS
components ActiveMessageC;
#endif
MainC.Boot <- NullC;
}
(I'm getting 2mA if ActiveMessageC is not compiled in. This is how much the
RF230 draws when it's on but not receiving or transmitting.)
This is with the most up-to-date sources from the CVS, though I measured the
same low current draw half a year ago, as well.
For the measurement, I used a lab power supply set to 3V and a high
precision multimeter (HP34401A) serially connected to the mote.
I can send you my binary to test if the problem is with your measurement
setup.
Janos
On Thu, Jan 29, 2009 at 8:29 AM, Charles Elliott <
[email protected]> wrote:
> Hi Miklos
>
> Without using ActiveMessageC the current was 4.5mA, using ActiveMessageC
> the current was 2.8mA
>
> Charles
>
> On Thu, Jan 29, 2009 at 3:47 AM, Miklos Maroti
> <[email protected]>wrote:
>
>> Hi Charles,
>>
>> Does it make any difference if you have the ActiveMessage included or
>> not? How much does it draw without the ActiveMessage?
>>
>> Miklos
>>
>> On Wed, Jan 28, 2009 at 9:02 PM, Charles Elliott
>> <[email protected]> wrote:
>> > Hi Janos
>> >
>> > I tried taking out those lines an was still getting 3mA draw.
>> >
>> > I've switched to the Null application adding the flowing line to
>> > NullAppC.nc:
>> > "47 components ActiveMessageC;"
>> >
>> > No other changes were made and there is still 3mA of current flowing.
>> >
>> > Charles
>> >
>> > On Fri, Jan 23, 2009 at 5:15 PM, Janos Sallai <
>> [email protected]>
>> > wrote:
>> >>
>> >> Charles:
>> >>
>> >> As I wrote in my previous mail, to make sure that the RF230 radio is
>> >> turned off after bootup, just add "components ActiveMessageC;" to any
>> of
>> >> your configuration files. You don't need to wire anything. On bootup,
>> the
>> >> RF230 stack will automatically take the radio to deep sleep. Of course,
>> if
>> >> your app starts using the radio, it will turn on...
>> >>
>> >> In your code (TestSchedulerC.nc), you _explicitly_ start the radio:
>> >>
>> >> 129: if (call RadioControl.start() != SUCCESS)
>> >> 130: call Leds.led0Toggle();
>> >>
>> >> That's why the mote is drawing 3mA.
>> >>
>> >> As a sidenote, if you want to use low power listening (disabled by
>> default
>> >> on all platforms), you have to add -DLOW_POWER_LISTENING to PFLAGS in
>> your
>> >> makefile.
>> >>
>> >> Janos
>> >>
>> >>
>> >> On Fri, Jan 23, 2009 at 3:57 PM, Charles Elliott
>> >> <[email protected]> wrote:
>> >>>
>> >>> Thanks for the ideas but we are still seeing ~3mA when running the
>> >>> application.
>> >>> I've attached the source and makefile to this email.
>> >>> Thanks
>> >>> Charles
>> >>>
>> >>> On Wed, Jan 21, 2009 at 3:38 PM, Janos Sallai
>> >>> <[email protected]> wrote:
>> >>>>
>> >>>> Charles,
>> >>>>
>> >>>> Just add "components ActiveMessageC;" to any of your configuration
>> >>>> files. You don't need to wire anything. On bootup, the RF230 stack
>> will
>> >>>> automatically take the radio to deep sleep. Of course, if your app
>> starts
>> >>>> using the radio, it will turn on...
>> >>>>
>> >>>> Janos
>> >>>>
>> >>>> On Wed, Jan 21, 2009 at 2:13 PM, Charles Elliott
>> >>>> <[email protected]> wrote:
>> >>>>>
>> >>>>> Thanks for the quick reply Miklos.
>> >>>>> Using the program from \tinyos-2.x\apps\tests\rf230\RF230Test as a
>> >>>>> guide we added in RF230LayerC and RF230ActiveMessageC to the wiring
>> file.
>> >>>>> To TestSchedulerC we added RadioState.turnOff() command and all of
>> the other
>> >>>>> required wiring and include statements.
>> >>>>> After making these changes the motes drew 1mA less than before.
>> >>>>> What are we missing?
>> >>>>> Thanks
>> >>>>> Charles
>> >>>>> On Tue, Jan 20, 2009 at 12:17 PM, Miklos Maroti
>> >>>>> <[email protected]> wrote:
>> >>>>>>
>> >>>>>> I think you need to include the RF230LayerC component to have to
>> radio
>> >>>>>> chip initialized and to move it into low power state. Miklos
>> >>>>>>
>> >>>>>> On Tue, Jan 20, 2009 at 11:11 AM, Charles Elliott
>> >>>>>> <[email protected]> wrote:
>> >>>>>> > Any help for the following question:
>> >>>>>> >
>> >>>>>> > "I have a question about the minimum power consumption in Iris
>> >>>>>> > module and
>> >>>>>> > telosb module when both of them are in sleep state and all of
>> their
>> >>>>>> > external
>> >>>>>> > devices are inactive. According to my measurement, the current
>> >>>>>> > consumed is
>> >>>>>> > only 7uA by telosb, but is 5mA by Iirs, which is quite high and
>> is
>> >>>>>> > contradict with the specification given by Crossbow.
>> >>>>>> >
>> >>>>>> >
>> >>>>>> >
>> >>>>>> > I did experiments on these two kinds of motes using the program
>> >>>>>> > TestSchedulerC. It is a program under the tinyos2-x/apps/tests
>> >>>>>> > directory. In
>> >>>>>> > the program, after the mote is booted, it posts three tasks to
>> >>>>>> > toggle the
>> >>>>>> > three led in the mote. According to the component wiring
>> >>>>>> > relationship, when
>> >>>>>> > the task queue is empty, the scheduler will finally invoke
>> mcuSleepC
>> >>>>>> > module
>> >>>>>> > to get the microcontroller into low power state. I installed the
>> >>>>>> > program on
>> >>>>>> > both Iris and telosb, and used a multi-meter to measure the
>> >>>>>> > electricity
>> >>>>>> > current.
>> >>>>>> >
>> >>>>>> >
>> >>>>>> >
>> >>>>>> > Can anyone give me some suggestions? Any help will be greatly
>> >>>>>> > appreciated!
>> >>>>>> >
>> >>>>>> >
>> >>>>>> >
>> >>>>>> > Jinfu Zheng"
>> >>>>>> >
>> >>>>>> > We are using the current tinyos source tree from the CVS
>> >>>>>> >
>> >>>>>> > Thanks
>> >>>>>> > Charles
>> >>>>>> >
>> >>>>>> > _______________________________________________
>> >>>>>> > Tinyos-help mailing list
>> >>>>>> > [email protected]
>> >>>>>> >
>> >>>>>> >
>> https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
>> >>>>>> >
>> >>>>>
>> >>>>>
>> >>>>> _______________________________________________
>> >>>>> Tinyos-help mailing list
>> >>>>> [email protected]
>> >>>>>
>> >>>>>
>> https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
>> >>>>
>> >>>
>> >>
>> >
>> >
>>
>
>
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