On Dec 18, 2007, at 8:18 AM, Carlos Gil Soriano wrote:
Hi,
I am working on monitoring consumption in micaZ motes. I have slept
both the micro and the radio. So consumption must be above 20 uA
(from the radio without WD nor battery monitor) plus 20 uA from
ATMega.
I have achieved a minimum consuption above 400uA on micaZ platform.
Taking a look to the ATMega datasheet (page 355) it is suppossed
that over 300 uA are from ADC.
I have tried to power-down the ADC, but results imposible for me.
The code that I have used is
cbi(ADCSRA, ADEN);
I guess that it should clear ADEN bit in ADCSRA register (as shown
in page 232 of ATMega datasheet).
Can anyone help me? I am on tinyOs1.15, but not matter if someone
can point out a solution for T1 or T2.
T2 will automatically put you in the lowest power state possible.
E.g., if the ADC is inactive it will power down automatically. micaZs
should be able to get down to 4-5 uA.
Phil
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