I was doing some low power managment work on the BeagleBoard.
This seems to be a nice platform to use for this type of work as opposed to the EVM as it does not have a lot of extra peripherals and stuff hanging about consuming small bits of power.
I was only able to get the suspend current down to approx. 400mw (80ma) by shuting down the USB PHY, DVI framer chip, turning off LEDs etc.
There is also a hard wired power indicator LED which accounts for ~23ma.
So I am estimating ~57ma or 285mw for the processor and pwr mgnt chip in standby (suspend).
I am using Windows CE and I see there probably are some other small tweaks I can do in the way of pin muxing that might allow me to get the power down a few more milliwatts but probably not that much more.
I was wondering if these number seem reasionable? I was expecting something on the order of maybe 8-15ma.
Has anyone done any real power managment work under Linux (on Beagle or other platform) that could give some comparison numbers?
