From: Thormodo <gam...@ho...> - 2011-06-08 14:55:13
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Ah so the 1.18 Watt was for the Pinto+Overo with OMAP3530 combo running something. While the 710mW measurement was for that combo in idle state (and the same for the DM37XX). I somehow missed the table for the OMAP35XX idle consumption. So a Pinto+Overo Water COM+Caspa FS constantly running will consume around 1.4 Watt with that kernel in my case. For the 3530 this will be at 720 MHz and for the new processor at 1GHz. I took the 1.18 Watt as base and added around 0.2 Watt. As I measured an increase of 37mA at 5.21V going from desktop only (not sure if this was with a console prompt on or not, I believe it was) to processing the Caspa video stream. That clears things up, thanks :). sakoman wrote: > > On Wed, Jun 8, 2011 at 2:32 AM, Thormodo <gam...@ho...> wrote: > Notice that I said slightly less "when both are running at the same clock > rate". > > At 600 Mhz 35XX is 655mW and 37XX is 570mW (both measurements taken > with CPU_IDLE and CPU_FREQ enabled). > > Interestingly, they both use the same amount of power (710mW) when > running at the maximum clock rate for the part (720Mhz for 35XX vs > 1Ghz for 37XX) > >> And do you happen to know when the DM37XX board will be available for >> "normal" customer purchase? I.e. in the next few months or longer? > > Perhaps someone from Gumstix can answer that question! Don? > >> BTW there is a typo in the title of the article "An overiew" -> "An >> overview" :). > > Fixed! Thanks for catching that :-) > > Steve > >> sakoman wrote: >>> >>> On Tue, Jun 7, 2011 at 7:27 AM, Thormodo <gam...@ho...> wrote: >>>> >>>> I was wondering if anyone can supply (or knows a site for) the MLO, >>>> uBoot, >>>> uImage and rootfs for the 2.6.38 PM kernel? Since neither the desktop >>>> nor >>>> the console image do build at the moment. I would prefer the desktop >>>> image, >>>> but a console image would also be much welcome. >>> >>> I'm working on a set of pm patches for 2.6.39, but do not yet have >>> pre-built images. >>> >>> You can see some preliminary results on my site: >>> >>> http://sakoman.com/OMAP/an-overiew-of-omap3-power-management-with-2639-pm.html >>> >>> Be warned that pm on OMAP3 is still a work in progress. Most of the >>> effort has gone into infrastructure and support for the core chipset. >>> If your application uses additional custom hw, or even hardware beyond >>> the core chipset (say wifi/bt for example) you will need to work on >>> adding pm support to those drivers. At the moment you can only hit >>> full retention with a very limited hardware set. >>> >>> Regards, >>> >>> Steve >>> >> >> -- >> View this message in context: >> http://old.nabble.com/Low-Power-How-to-tp31120827p31799099.html >> Sent from the Gumstix mailing list archive at Nabble.com. >> >> >> ------------------------------------------------------------------------------ >> EditLive Enterprise is the world's most technically advanced content >> authoring tool. Experience the power of Track Changes, Inline Image >> Editing and ensure content is compliant with Accessibility Checking. >> http://p.sf.net/sfu/ephox-dev2dev >> _______________________________________________ >> gumstix-users mailing list >> gum...@li... >> https://lists.sourceforge.net/lists/listinfo/gumstix-users >> > > ------------------------------------------------------------------------------ > EditLive Enterprise is the world's most technically advanced content > authoring tool. Experience the power of Track Changes, Inline Image > Editing and ensure content is compliant with Accessibility Checking. > http://p.sf.net/sfu/ephox-dev2dev > _______________________________________________ > gumstix-users mailing list > gum...@li... > https://lists.sourceforge.net/lists/listinfo/gumstix-users > > -- View this message in context: http://old.nabble.com/Low-Power-How-to-tp31120827p31801205.html Sent from the Gumstix mailing list archive at Nabble.com. |