BeagleBone questions (was Re: Towards an ARM system-building script)

[Bakul Shah]

On Tue, 30 Oct 2012 23:01:12 PDT Tim Kientzle <tim at kientzle.com>  wrote:
> 
> On Oct 30, 2012, at 9:20 AM, Adrian Chadd wrote:
> 
> > .. ah. armv5 has no sleep "halt" function, so it's just spinning.
> > Chances are that's a good candidate for why things are running too
> > warm.
> 
> RaspberryPi uses a Broadcom BCM2835 with an ARM1176JZF-S core (ARMv6).
> 
> BeagleBone uses a TI Sitara AM3358 with an ARM Cortex-A8 core (ARMv7).

See
http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.faqs/ka13332.html

The method outlined here puts Rpi in low power standby mode,
waiting for an interrupt to wake it up. Haven't measured actual
power us in this mode.