On Apr 6, 2007, at 3:00 PM, Steve McKown wrote:
[OT] You mean like this one? ;^)
We coupled high-bandwidth precision power supply with a precision
resistor in
series with its output *before* the voltage feedback path. We
power a sensor
node with this guy, then use a high-speed DAQ to cap
Thanks Kurt, Phil and Barry,
It seems that measuring power is a better idea and then to compare it with
what we see theoretically. Till we don't see a large difference between them
things will be OK.
I have gone through the Datasheet and the current drawn for the IDLE mode is
given to be 2.5 mA.
On Friday 06 April 2007 13:57, Philip Levis wrote:
> On Apr 6, 2007, at 12:27 PM, Kurt Peters wrote:
> > If you seek to estimate the power consumption, you can read
> > through the
> > data sheet for the 128L from Atmel if you're using that group of
> > motes.
[snip]
>
> One of the issues here
Mayur,
Page 323 of the ATMega128L datasheet
(http://www.atmel.com/dyn/resources/prod_documents/doc2467.pdf) only
gives the following data:
Icc 4Mhz Active 5.5mA Max
Icc 4MHz Idle 2.5mA Max
Icc Power-down mode WDT enabled <15uA Typ 25uA Max
Icc Power-down mode WDT disabled <5uA Typ 10uA Max
The
On Apr 6, 2007, at 12:27 PM, Kurt Peters wrote:
If you seek to estimate the power consumption, you can read
through the
data sheet for the 128L from Atmel if you're using that group of
motes. The
schematics for other sensor boards are available online, and you
find the
parts used and
If you seek to estimate the power consumption, you can read through the
data sheet for the 128L from Atmel if you're using that group of motes. The
schematics for other sensor boards are available online, and you find the
parts used and then can use those datasheets to determine / estimate th
On Apr 6, 2007, at 11:17 AM, Steve McKown wrote:
I don't use Atmel parts, but I'd assume you could find this
information in
their respective data sheets...
The data sheet is a place to start. But that tends to only consider
the MCU, and not all the other peripherals. For example, the leaka
I don't use Atmel parts, but I'd assume you could find this information in
their respective data sheets...
On Friday 06 April 2007 11:54, Mayur Maheshwari wrote:
> Steve and Philip,
>
> Thanks for the replies.
> One more question. Is there any pointer towards the amount of current drawn
> by the
Steve and Philip,
Thanks for the replies.
One more question. Is there any pointer towards the amount of current drawn
by the MCU(Atmega128L) for the different sleep modes available:
Idle
ADC Noise Reduction
Power-Down
Power-Save
Standby
Extended Standby
I need to calculate the energy consumptio
On Apr 6, 2007, at 7:35 AM, Mayur Maheshwari wrote:
Thanks Steve for the reply. This is a very helpful information.
If the MCU goes to LPM3 when only a timer is runnning then it also
goes into different LPMs (LPM0-LPM4) depending on what devices are
running like the sensor and then the flas
me updated measurements.
-David
_
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Mayur
Maheshwari
Sent: Friday, April 06, 2007 6:41 AM
To: tinyos-help@Millennium.Berkeley.EDU
Subject: [Tinyos-help] MCU and cc2420 power consumption
Hi All,
I have few questions r
On Friday 06 April 2007 08:35, Mayur Maheshwari wrote:
> Thanks Steve for the reply. This is a very helpful information.
>
> If the MCU goes to LPM3 when only a timer is runnning then it also goes
> into different LPMs (LPM0-LPM4) depending on what devices are running like
> the sensor and then the
Thanks Steve for the reply. This is a very helpful information.
If the MCU goes to LPM3 when only a timer is runnning then it also goes into
different LPMs (LPM0-LPM4) depending on what devices are running like the
sensor and then the flash storage being written, etc.
Which LPM does the MCU goes
Hi,
I can answer one of your questions. The msp430 goes to LPM3 (low power mode
3) in this case, which consumes about 1.1uA. The timer driven by the 32kHz
crystal remains active so the msp430 can be awakened by a timer like
TimerMilliC() being fired.
On Friday 06 April 2007 07:41, Mayur Mahe
Hi All,
I have few questions relating to the power management being done in TinyOS
2.x
1. While perusing through the mails on the list it seems that the MCU
(Atmega128L or MSP430) sleeps if there are no tasks in the task queue.
However, my application uses a timer to periodically sense data and
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