Power Management

Hal Murray hmurray at megapathdsl.net
Fri Jun 8 16:50:20 EDT 2007


> What's the power difference between freeze and off? If it's not
> substantial, I totally agree with you.

>From a B3 board running off wall power (12V)
No battery installed
Measuring current on the power cord:


Running Q2C11 firmware:
  535 mA - idle loop, display lights on  (no memory activity)
  172 mA - "s" command which turns off the CPU and USB and ???


Running Linux:

Display lights on:
  670 mA - eyeball peak during booting
  640 mA - eyeball peak shortly after boot (initializing mesh and whatever)
  532 mA - idle

Display lights off:
  437 mA - idle
  587 mA - CPU spin loop (not much memory)
  620 mA - memory bashing




-- 
These are my opinions, not necessarily my employer's.  I hate spam.






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