[Tinyos Core WG] Meeting: 3/14

[Philip Levis]

On Tue, 2007-03-20 at 17:40 -0700, Joe Polastre wrote:
> The problem lies with TinyOS 2.x
> 
> With TinyOS 1.x, specifically the CountSleep application in
> tinyos-1.x/apps/CountRadio, compiled with 'make tmote' yields:
> 
> 8.84uA
> 9.01uA
> 8.94uA
> 
> on three randomly chosen RoHS motes without sensors at 3.15V supply
> (two brand-new batteries).  The current consumption is about 1.5uA
> lower at 2.7V supply.
> 
> You should check your initialization routine for TinyOS 2.x, sounds
> like hardware pin configuration problem to me.

Right -- this goes back to my post to -devel a week or so ago. For
telosa, telosb, and earlier TMotes -- e.g.,  board H014-4702 -- I see
8uA. On the newer TMotes -- e.g., board H914-4787 -- I see 40uA. I
agree, it's probably a pin configuration problem. But given that I see
different numbers for the different versions -- what changed? Knowing
that would be really helpful in dropping the Telos numbers to what they
should be.

I'm still recovering from SOSP yesterday, but tomorrow I'll try
installing 1.x on my nodes to verify I see the same numbers you do. Who
knows -- it could be a weird batch or something.

Phil