From: Arthur M. <ar...@ar...> - 2004-05-28 15:51:44
|
Hello all, I've just been looking over the gumstix specs again, and noticed the power consumption. Does it really draw 0.25A - that sounds like a heck of a lot! Has anyone measured what it actually draws in fairly quiet operating conditions? And how easy is it to put to sleep/wake up again? From the OS end, Does it use ACPI or something similar? Funny how one question always turns into several when I start writing the email... Thanks in advance, Arthur This message has been scanned but we cannot guarantee that it and any attachments are free from viruses or other damaging content: you are advised to perform your own checks. Email communications with the University of Nottingham may be monitored as permitted by UK legislation. |
From: Philip B. <ph...@ba...> - 2010-06-03 17:22:37
|
Does anyone have comprehensive power consumption numbers for the Overo product line? I'm interested in numbers with and without wifi and for various clock speeds and with the DSP operating. This data should be really handy for people designing products around the Overo and I can't find anything on the website. Finally, does it matter if I use 4 volts versus 3.3 volts? Philip |
From: R. P. M. <log...@gm...> - 2010-06-03 17:30:22
|
>> Finally, does it matter if I use 4 volts versus 3.3 volts? No. The power usage is the same. Of course the input current will be less at the higher voltage. On 6/4/10, Philip Balister <ph...@ba...> wrote: > Does anyone have comprehensive power consumption numbers for the Overo > product line? I'm interested in numbers with and without wifi and for > various clock speeds and with the DSP operating. > > This data should be really handy for people designing products around > the Overo and I can't find anything on the website. > > Finally, does it matter if I use 4 volts versus 3.3 volts? > > Philip > > ------------------------------------------------------------------------------ > ThinkGeek and WIRED's GeekDad team up for the Ultimate > GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the > lucky parental unit. See the prize list and enter to win: > http://p.sf.net/sfu/thinkgeek-promo > _______________________________________________ > gumstix-users mailing list > gum...@li... > https://lists.sourceforge.net/lists/listinfo/gumstix-users > |
From: Philip B. <ph...@ba...> - 2010-06-03 18:03:30
|
On 06/03/2010 01:30 PM, R. P. McMurphy wrote: >>> Finally, does it matter if I use 4 volts versus 3.3 volts? > > No. The power usage is the same. Of course the input current will be > less at the higher voltage. That suggests the power supply on the Overo is a switcher. Do you know if this is true? Philip > > On 6/4/10, Philip Balister<ph...@ba...> wrote: >> Does anyone have comprehensive power consumption numbers for the Overo >> product line? I'm interested in numbers with and without wifi and for >> various clock speeds and with the DSP operating. >> >> This data should be really handy for people designing products around >> the Overo and I can't find anything on the website. >> >> Finally, does it matter if I use 4 volts versus 3.3 volts? >> >> Philip >> >> ------------------------------------------------------------------------------ >> ThinkGeek and WIRED's GeekDad team up for the Ultimate >> GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the >> lucky parental unit. See the prize list and enter to win: >> http://p.sf.net/sfu/thinkgeek-promo >> _______________________________________________ >> gumstix-users mailing list >> gum...@li... >> https://lists.sourceforge.net/lists/listinfo/gumstix-users >> > > ------------------------------------------------------------------------------ > ThinkGeek and WIRED's GeekDad team up for the Ultimate > GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the > lucky parental unit. See the prize list and enter to win: > http://p.sf.net/sfu/thinkgeek-promo > _______________________________________________ > gumstix-users mailing list > gum...@li... > https://lists.sourceforge.net/lists/listinfo/gumstix-users > |
From: Ash C. <as...@gu...> - 2010-06-03 18:52:01
|
Hi Phil, The Overo uses the TPS65950 for power management which contains several switching buck converters. -Ash On Thu, Jun 3, 2010 at 11:03 AM, Philip Balister <ph...@ba...> wrote: > On 06/03/2010 01:30 PM, R. P. McMurphy wrote: >>>> Finally, does it matter if I use 4 volts versus 3.3 volts? >> >> No. The power usage is the same. Of course the input current will be >> less at the higher voltage. > > That suggests the power supply on the Overo is a switcher. Do you know > if this is true? > > Philip > > > >> >> On 6/4/10, Philip Balister<ph...@ba...> wrote: >>> Does anyone have comprehensive power consumption numbers for the Overo >>> product line? I'm interested in numbers with and without wifi and for >>> various clock speeds and with the DSP operating. >>> >>> This data should be really handy for people designing products around >>> the Overo and I can't find anything on the website. >>> >>> Finally, does it matter if I use 4 volts versus 3.3 volts? >>> >>> Philip >>> >>> ------------------------------------------------------------------------------ >>> ThinkGeek and WIRED's GeekDad team up for the Ultimate >>> GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the >>> lucky parental unit. See the prize list and enter to win: >>> http://p.sf.net/sfu/thinkgeek-promo >>> _______________________________________________ >>> gumstix-users mailing list >>> gum...@li... >>> https://lists.sourceforge.net/lists/listinfo/gumstix-users >>> >> >> ------------------------------------------------------------------------------ >> ThinkGeek and WIRED's GeekDad team up for the Ultimate >> GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the >> lucky parental unit. See the prize list and enter to win: >> http://p.sf.net/sfu/thinkgeek-promo >> _______________________________________________ >> gumstix-users mailing list >> gum...@li... >> https://lists.sourceforge.net/lists/listinfo/gumstix-users >> > > ------------------------------------------------------------------------------ > ThinkGeek and WIRED's GeekDad team up for the Ultimate > GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the > lucky parental unit. See the prize list and enter to win: > http://p.sf.net/sfu/thinkgeek-promo > _______________________________________________ > gumstix-users mailing list > gum...@li... > https://lists.sourceforge.net/lists/listinfo/gumstix-users > |
From: Philip B. <ph...@ba...> - 2010-06-03 19:41:42
|
On 06/03/2010 02:51 PM, Ash Charles wrote: > Hi Phil, > > The Overo uses the TPS65950 for power management which contains > several switching buck converters. Do you know the power consumption figures for the various COM's? Philip > > -Ash > > On Thu, Jun 3, 2010 at 11:03 AM, Philip Balister<ph...@ba...> wrote: >> On 06/03/2010 01:30 PM, R. P. McMurphy wrote: >>>>> Finally, does it matter if I use 4 volts versus 3.3 volts? >>> >>> No. The power usage is the same. Of course the input current will be >>> less at the higher voltage. >> >> That suggests the power supply on the Overo is a switcher. Do you know >> if this is true? >> >> Philip >> >> >> >>> >>> On 6/4/10, Philip Balister<ph...@ba...> wrote: >>>> Does anyone have comprehensive power consumption numbers for the Overo >>>> product line? I'm interested in numbers with and without wifi and for >>>> various clock speeds and with the DSP operating. >>>> >>>> This data should be really handy for people designing products around >>>> the Overo and I can't find anything on the website. >>>> >>>> Finally, does it matter if I use 4 volts versus 3.3 volts? >>>> >>>> Philip >>>> >>>> ------------------------------------------------------------------------------ >>>> ThinkGeek and WIRED's GeekDad team up for the Ultimate >>>> GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the >>>> lucky parental unit. See the prize list and enter to win: >>>> http://p.sf.net/sfu/thinkgeek-promo >>>> _______________________________________________ >>>> gumstix-users mailing list >>>> gum...@li... >>>> https://lists.sourceforge.net/lists/listinfo/gumstix-users >>>> >>> >>> ------------------------------------------------------------------------------ >>> ThinkGeek and WIRED's GeekDad team up for the Ultimate >>> GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the >>> lucky parental unit. See the prize list and enter to win: >>> http://p.sf.net/sfu/thinkgeek-promo >>> _______________________________________________ >>> gumstix-users mailing list >>> gum...@li... >>> https://lists.sourceforge.net/lists/listinfo/gumstix-users >>> >> >> ------------------------------------------------------------------------------ >> ThinkGeek and WIRED's GeekDad team up for the Ultimate >> GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the >> lucky parental unit. See the prize list and enter to win: >> http://p.sf.net/sfu/thinkgeek-promo >> _______________________________________________ >> gumstix-users mailing list >> gum...@li... >> https://lists.sourceforge.net/lists/listinfo/gumstix-users >> > > ------------------------------------------------------------------------------ > ThinkGeek and WIRED's GeekDad team up for the Ultimate > GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the > lucky parental unit. See the prize list and enter to win: > http://p.sf.net/sfu/thinkgeek-promo > _______________________________________________ > gumstix-users mailing list > gum...@li... > https://lists.sourceforge.net/lists/listinfo/gumstix-users |
From: Tyler G. <ty...@bm...> - 2010-06-03 19:46:29
|
The datasheet diagram suggests that the 3 highest-current capable are DC-DC, but the majority are LDOs. http://focus.ti.com/lit/ds/symlink/tps65950.pdf pages 34-35 Providing 3.3V will save you power, but how much power you actually save will vary greatly depending on your usage. -Tyler On Thu, Jun 3, 2010 at 11:51 AM, Ash Charles <as...@gu...> wrote: > Hi Phil, > > The Overo uses the TPS65950 for power management which contains > several switching buck converters. > > -Ash > > On Thu, Jun 3, 2010 at 11:03 AM, Philip Balister <ph...@ba...> > wrote: > > On 06/03/2010 01:30 PM, R. P. McMurphy wrote: > >>>> Finally, does it matter if I use 4 volts versus 3.3 volts? > >> > >> No. The power usage is the same. Of course the input current will be > >> less at the higher voltage. > > > > That suggests the power supply on the Overo is a switcher. Do you know > > if this is true? > > > > Philip > > > > > > > >> > >> On 6/4/10, Philip Balister<ph...@ba...> wrote: > >>> Does anyone have comprehensive power consumption numbers for the Overo > >>> product line? I'm interested in numbers with and without wifi and for > >>> various clock speeds and with the DSP operating. > >>> > >>> This data should be really handy for people designing products around > >>> the Overo and I can't find anything on the website. > >>> > >>> Finally, does it matter if I use 4 volts versus 3.3 volts? > >>> > >>> Philip > >>> > >>> > ------------------------------------------------------------------------------ > >>> ThinkGeek and WIRED's GeekDad team up for the Ultimate > >>> GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the > >>> lucky parental unit. See the prize list and enter to win: > >>> http://p.sf.net/sfu/thinkgeek-promo > >>> _______________________________________________ > >>> gumstix-users mailing list > >>> gum...@li... > >>> https://lists.sourceforge.net/lists/listinfo/gumstix-users > >>> > >> > >> > ------------------------------------------------------------------------------ > >> ThinkGeek and WIRED's GeekDad team up for the Ultimate > >> GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the > >> lucky parental unit. See the prize list and enter to win: > >> http://p.sf.net/sfu/thinkgeek-promo > >> _______________________________________________ > >> gumstix-users mailing list > >> gum...@li... > >> https://lists.sourceforge.net/lists/listinfo/gumstix-users > >> > > > > > ------------------------------------------------------------------------------ > > ThinkGeek and WIRED's GeekDad team up for the Ultimate > > GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the > > lucky parental unit. See the prize list and enter to win: > > http://p.sf.net/sfu/thinkgeek-promo > > _______________________________________________ > > gumstix-users mailing list > > gum...@li... > > https://lists.sourceforge.net/lists/listinfo/gumstix-users > > > > > ------------------------------------------------------------------------------ > ThinkGeek and WIRED's GeekDad team up for the Ultimate > GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the > lucky parental unit. See the prize list and enter to win: > http://p.sf.net/sfu/thinkgeek-promo > _______________________________________________ > gumstix-users mailing list > gum...@li... > https://lists.sourceforge.net/lists/listinfo/gumstix-users > -- Tyler Gore 617-505-4865(work) 503-860-0743 (cell) -- This email message, including any attachments, is intended solely for the use of the designated recipient(s) and may contain confidential, privileged, and or proprietary information. Any unauthorized review, use, disclosure or distribution is strictly prohibited. |
From: Ash C. <as...@gu...> - 2010-06-03 20:02:55
|
Hi Phil, Short answer: I'm sorry---I don't have these numbers. Long answer: Your question prompted a little discussion in the office and two questions popped up: 1. Do we need power consumption numbers for all four Overos as well as all the expansion boards (admittedly nice but this takes time when new revs. are released) and what conditions are appropriate to test (wifi sleeping, wifi fully active...)? 2. Software changes can affect the power consumption substantially (e.g. wifi power management now works on the new kernel so the power numbers are better). How often|when do we need to redo the benchmarks? I'd welcome any insight into these two questions. -Ash On Thu, Jun 3, 2010 at 12:41 PM, Philip Balister <ph...@ba...> wrote: > On 06/03/2010 02:51 PM, Ash Charles wrote: >> Hi Phil, >> >> The Overo uses the TPS65950 for power management which contains >> several switching buck converters. > > Do you know the power consumption figures for the various COM's? > > Philip > >> >> -Ash >> >> On Thu, Jun 3, 2010 at 11:03 AM, Philip Balister<ph...@ba...> wrote: >>> On 06/03/2010 01:30 PM, R. P. McMurphy wrote: >>>>>> Finally, does it matter if I use 4 volts versus 3.3 volts? >>>> >>>> No. The power usage is the same. Of course the input current will be >>>> less at the higher voltage. >>> >>> That suggests the power supply on the Overo is a switcher. Do you know >>> if this is true? >>> >>> Philip >>> >>> >>> >>>> >>>> On 6/4/10, Philip Balister<ph...@ba...> wrote: >>>>> Does anyone have comprehensive power consumption numbers for the Overo >>>>> product line? I'm interested in numbers with and without wifi and for >>>>> various clock speeds and with the DSP operating. >>>>> >>>>> This data should be really handy for people designing products around >>>>> the Overo and I can't find anything on the website. >>>>> >>>>> Finally, does it matter if I use 4 volts versus 3.3 volts? >>>>> >>>>> Philip >>>>> >>>>> ------------------------------------------------------------------------------ >>>>> ThinkGeek and WIRED's GeekDad team up for the Ultimate >>>>> GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the >>>>> lucky parental unit. See the prize list and enter to win: >>>>> http://p.sf.net/sfu/thinkgeek-promo >>>>> _______________________________________________ >>>>> gumstix-users mailing list >>>>> gum...@li... >>>>> https://lists.sourceforge.net/lists/listinfo/gumstix-users >>>>> >>>> >>>> ------------------------------------------------------------------------------ >>>> ThinkGeek and WIRED's GeekDad team up for the Ultimate >>>> GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the >>>> lucky parental unit. See the prize list and enter to win: >>>> http://p.sf.net/sfu/thinkgeek-promo >>>> _______________________________________________ >>>> gumstix-users mailing list >>>> gum...@li... >>>> https://lists.sourceforge.net/lists/listinfo/gumstix-users >>>> >>> >>> ------------------------------------------------------------------------------ >>> ThinkGeek and WIRED's GeekDad team up for the Ultimate >>> GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the >>> lucky parental unit. See the prize list and enter to win: >>> http://p.sf.net/sfu/thinkgeek-promo >>> _______________________________________________ >>> gumstix-users mailing list >>> gum...@li... >>> https://lists.sourceforge.net/lists/listinfo/gumstix-users >>> >> >> ------------------------------------------------------------------------------ >> ThinkGeek and WIRED's GeekDad team up for the Ultimate >> GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the >> lucky parental unit. See the prize list and enter to win: >> http://p.sf.net/sfu/thinkgeek-promo >> _______________________________________________ >> gumstix-users mailing list >> gum...@li... >> https://lists.sourceforge.net/lists/listinfo/gumstix-users > > ------------------------------------------------------------------------------ > ThinkGeek and WIRED's GeekDad team up for the Ultimate > GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the > lucky parental unit. See the prize list and enter to win: > http://p.sf.net/sfu/thinkgeek-promo > _______________________________________________ > gumstix-users mailing list > gum...@li... > https://lists.sourceforge.net/lists/listinfo/gumstix-users > |
From: Michael C. <mik...@ar...> - 2010-06-04 01:02:24
|
On 06/03/2010 04:02 PM, Ash Charles wrote: > Hi Phil, > > Short answer: I'm sorry---I don't have these numbers. > > Long answer: > Your question prompted a little discussion in the office and two > questions popped up: > 1. Do we need power consumption numbers for all four Overos as well as > all the expansion boards (admittedly nice but this takes time when new > revs. are released) and what conditions are appropriate to test (wifi > sleeping, wifi fully active...)? > 2. Software changes can affect the power consumption substantially > (e.g. wifi power management now works on the new kernel so the power > numbers are better). How often|when do we need to redo the > benchmarks? > > I'd welcome any insight into these two questions. > > -Ash > > On Thu, Jun 3, 2010 at 12:41 PM, Philip Balister<ph...@ba...> wrote: > >> On 06/03/2010 02:51 PM, Ash Charles wrote: >> >>> Hi Phil, >>> >>> The Overo uses the TPS65950 for power management which contains >>> several switching buck converters. >>> >> Do you know the power consumption figures for the various COM's? >> >> Philip >> >> >>> -Ash >>> >>> On Thu, Jun 3, 2010 at 11:03 AM, Philip Balister<ph...@ba...> wrote: >>> >>>> On 06/03/2010 01:30 PM, R. P. McMurphy wrote: >>>> >>>>>>> Finally, does it matter if I use 4 volts versus 3.3 volts? >>>>>>> >>>>> No. The power usage is the same. Of course the input current will be >>>>> less at the higher voltage. >>>>> >>>> That suggests the power supply on the Overo is a switcher. Do you know >>>> if this is true? >>>> >>>> Philip >>>> >>>> >>>> >>>> >>>>> On 6/4/10, Philip Balister<ph...@ba...> wrote: >>>>> >>>>>> Does anyone have comprehensive power consumption numbers for the Overo >>>>>> product line? I'm interested in numbers with and without wifi and for >>>>>> various clock speeds and with the DSP operating. >>>>>> >>>>>> This data should be really handy for people designing products around >>>>>> the Overo and I can't find anything on the website. >>>>>> >>>>>> Finally, does it matter if I use 4 volts versus 3.3 volts? >>>>>> >>>>>> Philip >>>>>> >>>>>> ------------------------------------------------------------------------------ >>>>>> ThinkGeek and WIRED's GeekDad team up for the Ultimate >>>>>> GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the >>>>>> lucky parental unit. See the prize list and enter to win: >>>>>> http://p.sf.net/sfu/thinkgeek-promo >>>>>> _______________________________________________ >>>>>> gumstix-users mailing list >>>>>> gum...@li... >>>>>> https://lists.sourceforge.net/lists/listinfo/gumstix-users >>>>>> >>>>>> >>>>> ------------------------------------------------------------------------------ >>>>> ThinkGeek and WIRED's GeekDad team up for the Ultimate >>>>> GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the >>>>> lucky parental unit. See the prize list and enter to win: >>>>> http://p.sf.net/sfu/thinkgeek-promo >>>>> _______________________________________________ >>>>> gumstix-users mailing list >>>>> gum...@li... >>>>> https://lists.sourceforge.net/lists/listinfo/gumstix-users >>>>> >>>>> >>>> ------------------------------------------------------------------------------ >>>> ThinkGeek and WIRED's GeekDad team up for the Ultimate >>>> GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the >>>> lucky parental unit. See the prize list and enter to win: >>>> http://p.sf.net/sfu/thinkgeek-promo >>>> _______________________________________________ >>>> gumstix-users mailing list >>>> gum...@li... >>>> https://lists.sourceforge.net/lists/listinfo/gumstix-users >>>> >>>> >>> ------------------------------------------------------------------------------ >>> ThinkGeek and WIRED's GeekDad team up for the Ultimate >>> GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the >>> lucky parental unit. See the prize list and enter to win: >>> http://p.sf.net/sfu/thinkgeek-promo >>> _______________________________________________ >>> gumstix-users mailing list >>> gum...@li... >>> https://lists.sourceforge.net/lists/listinfo/gumstix-users >>> >> ------------------------------------------------------------------------------ >> ThinkGeek and WIRED's GeekDad team up for the Ultimate >> GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the >> lucky parental unit. See the prize list and enter to win: >> http://p.sf.net/sfu/thinkgeek-promo >> _______________________________________________ >> gumstix-users mailing list >> gum...@li... >> https://lists.sourceforge.net/lists/listinfo/gumstix-users >> >> > ------------------------------------------------------------------------------ > ThinkGeek and WIRED's GeekDad team up for the Ultimate > GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the > lucky parental unit. See the prize list and enter to win: > http://p.sf.net/sfu/thinkgeek-promo > _______________________________________________ > gumstix-users mailing list > gum...@li... > https://lists.sourceforge.net/lists/listinfo/gumstix-users > I would love to see numbers on at least the base Overo Earth and Summit board. This would give us a good starting in designing our power systems to support projects based on the Overo. I think in general the we should focus more on the power underbelly of the platform. We need to come up with a very repeatable process to make sure it's accurate and that we can test it on our own to verify that our platform is operating within the baseline. My two cents. Mike |
From: R. P. M. <log...@gm...> - 2010-06-04 01:46:40
|
>> I would love to see numbers on at least the base Overo Earth and Summitboard. Under what conditions? I have my Earth/Summit combo running at anywhere between 12mA and 450mA depending upon the input voltage, system status and connected peripherals. On 6/4/10, Michael Collins <mik...@ar...> wrote: > On 06/03/2010 04:02 PM, Ash Charles wrote: >> Hi Phil, >> >> Short answer: I'm sorry---I don't have these numbers. >> >> Long answer: >> Your question prompted a little discussion in the office and two >> questions popped up: >> 1. Do we need power consumption numbers for all four Overos as well as >> all the expansion boards (admittedly nice but this takes time when new >> revs. are released) and what conditions are appropriate to test (wifi >> sleeping, wifi fully active...)? >> 2. Software changes can affect the power consumption substantially >> (e.g. wifi power management now works on the new kernel so the power >> numbers are better). How often|when do we need to redo the >> benchmarks? >> >> I'd welcome any insight into these two questions. >> >> -Ash >> >> On Thu, Jun 3, 2010 at 12:41 PM, Philip Balister<ph...@ba...> >> wrote: >> >>> On 06/03/2010 02:51 PM, Ash Charles wrote: >>> >>>> Hi Phil, >>>> >>>> The Overo uses the TPS65950 for power management which contains >>>> several switching buck converters. >>>> >>> Do you know the power consumption figures for the various COM's? >>> >>> Philip >>> >>> >>>> -Ash >>>> >>>> On Thu, Jun 3, 2010 at 11:03 AM, Philip Balister<ph...@ba...> >>>> wrote: >>>> >>>>> On 06/03/2010 01:30 PM, R. P. McMurphy wrote: >>>>> >>>>>>>> Finally, does it matter if I use 4 volts versus 3.3 volts? >>>>>>>> >>>>>> No. The power usage is the same. Of course the input current will be >>>>>> less at the higher voltage. >>>>>> >>>>> That suggests the power supply on the Overo is a switcher. Do you know >>>>> if this is true? >>>>> >>>>> Philip >>>>> >>>>> >>>>> >>>>> >>>>>> On 6/4/10, Philip Balister<ph...@ba...> wrote: >>>>>> >>>>>>> Does anyone have comprehensive power consumption numbers for the >>>>>>> Overo >>>>>>> product line? I'm interested in numbers with and without wifi and for >>>>>>> various clock speeds and with the DSP operating. >>>>>>> >>>>>>> This data should be really handy for people designing products around >>>>>>> the Overo and I can't find anything on the website. >>>>>>> >>>>>>> Finally, does it matter if I use 4 volts versus 3.3 volts? >>>>>>> >>>>>>> Philip >>>>>>> >>>>>>> ------------------------------------------------------------------------------ >>>>>>> ThinkGeek and WIRED's GeekDad team up for the Ultimate >>>>>>> GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the >>>>>>> lucky parental unit. See the prize list and enter to win: >>>>>>> http://p.sf.net/sfu/thinkgeek-promo >>>>>>> _______________________________________________ >>>>>>> gumstix-users mailing list >>>>>>> gum...@li... >>>>>>> https://lists.sourceforge.net/lists/listinfo/gumstix-users >>>>>>> >>>>>>> >>>>>> ------------------------------------------------------------------------------ >>>>>> ThinkGeek and WIRED's GeekDad team up for the Ultimate >>>>>> GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the >>>>>> lucky parental unit. See the prize list and enter to win: >>>>>> http://p.sf.net/sfu/thinkgeek-promo >>>>>> _______________________________________________ >>>>>> gumstix-users mailing list >>>>>> gum...@li... >>>>>> https://lists.sourceforge.net/lists/listinfo/gumstix-users >>>>>> >>>>>> >>>>> ------------------------------------------------------------------------------ >>>>> ThinkGeek and WIRED's GeekDad team up for the Ultimate >>>>> GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the >>>>> lucky parental unit. See the prize list and enter to win: >>>>> http://p.sf.net/sfu/thinkgeek-promo >>>>> _______________________________________________ >>>>> gumstix-users mailing list >>>>> gum...@li... >>>>> https://lists.sourceforge.net/lists/listinfo/gumstix-users >>>>> >>>>> >>>> ------------------------------------------------------------------------------ >>>> ThinkGeek and WIRED's GeekDad team up for the Ultimate >>>> GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the >>>> lucky parental unit. See the prize list and enter to win: >>>> http://p.sf.net/sfu/thinkgeek-promo >>>> _______________________________________________ >>>> gumstix-users mailing list >>>> gum...@li... >>>> https://lists.sourceforge.net/lists/listinfo/gumstix-users >>>> >>> ------------------------------------------------------------------------------ >>> ThinkGeek and WIRED's GeekDad team up for the Ultimate >>> GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the >>> lucky parental unit. See the prize list and enter to win: >>> http://p.sf.net/sfu/thinkgeek-promo >>> _______________________________________________ >>> gumstix-users mailing list >>> gum...@li... >>> https://lists.sourceforge.net/lists/listinfo/gumstix-users >>> >>> >> ------------------------------------------------------------------------------ >> ThinkGeek and WIRED's GeekDad team up for the Ultimate >> GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the >> lucky parental unit. See the prize list and enter to win: >> http://p.sf.net/sfu/thinkgeek-promo >> _______________________________________________ >> gumstix-users mailing list >> gum...@li... >> https://lists.sourceforge.net/lists/listinfo/gumstix-users >> > I would love to see numbers on at least the base Overo Earth and Summit > board. This would give us a good starting in designing our power > systems to support projects based on the Overo. I think in general the > we should focus more on the power underbelly of the platform. We need > to come up with a very repeatable process to make sure it's accurate and > that we can test it on our own to verify that our platform is operating > within the baseline. My two cents. > Mike > > ------------------------------------------------------------------------------ > ThinkGeek and WIRED's GeekDad team up for the Ultimate > GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the > lucky parental unit. See the prize list and enter to win: > http://p.sf.net/sfu/thinkgeek-promo > _______________________________________________ > gumstix-users mailing list > gum...@li... > https://lists.sourceforge.net/lists/listinfo/gumstix-users > |
From: Michael C. <mik...@ar...> - 2010-06-04 02:23:48
|
On 06/03/2010 09:38 PM, R. P. McMurphy wrote: >>> I would love to see numbers on at least the base Overo Earth and Summitboard. >>> > Under what conditions? > > I have my Earth/Summit combo running at anywhere between 12mA and > 450mA depending upon the input voltage, system status and connected > peripherals. > > On 6/4/10, Michael Collins<mik...@ar...> wrote: > >> On 06/03/2010 04:02 PM, Ash Charles wrote: >> >>> Hi Phil, >>> >>> Short answer: I'm sorry---I don't have these numbers. >>> >>> Long answer: >>> Your question prompted a little discussion in the office and two >>> questions popped up: >>> 1. Do we need power consumption numbers for all four Overos as well as >>> all the expansion boards (admittedly nice but this takes time when new >>> revs. are released) and what conditions are appropriate to test (wifi >>> sleeping, wifi fully active...)? >>> 2. Software changes can affect the power consumption substantially >>> (e.g. wifi power management now works on the new kernel so the power >>> numbers are better). How often|when do we need to redo the >>> benchmarks? >>> >>> I'd welcome any insight into these two questions. >>> >>> -Ash >>> >>> On Thu, Jun 3, 2010 at 12:41 PM, Philip Balister<ph...@ba...> >>> wrote: >>> >>> >>>> On 06/03/2010 02:51 PM, Ash Charles wrote: >>>> >>>> >>>>> Hi Phil, >>>>> >>>>> The Overo uses the TPS65950 for power management which contains >>>>> several switching buck converters. >>>>> >>>>> >>>> Do you know the power consumption figures for the various COM's? >>>> >>>> Philip >>>> >>>> >>>> >>>>> -Ash >>>>> >>>>> On Thu, Jun 3, 2010 at 11:03 AM, Philip Balister<ph...@ba...> >>>>> wrote: >>>>> >>>>> >>>>>> On 06/03/2010 01:30 PM, R. P. McMurphy wrote: >>>>>> >>>>>> >>>>>>>>> Finally, does it matter if I use 4 volts versus 3.3 volts? >>>>>>>>> >>>>>>>>> >>>>>>> No. The power usage is the same. Of course the input current will be >>>>>>> less at the higher voltage. >>>>>>> >>>>>>> >>>>>> That suggests the power supply on the Overo is a switcher. Do you know >>>>>> if this is true? >>>>>> >>>>>> Philip >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>>> On 6/4/10, Philip Balister<ph...@ba...> wrote: >>>>>>> >>>>>>> >>>>>>>> Does anyone have comprehensive power consumption numbers for the >>>>>>>> Overo >>>>>>>> product line? I'm interested in numbers with and without wifi and for >>>>>>>> various clock speeds and with the DSP operating. >>>>>>>> >>>>>>>> This data should be really handy for people designing products around >>>>>>>> the Overo and I can't find anything on the website. >>>>>>>> >>>>>>>> Finally, does it matter if I use 4 volts versus 3.3 volts? >>>>>>>> >>>>>>>> Philip >>>>>>>> >>>>>>>> ------------------------------------------------------------------------------ >>>>>>>> ThinkGeek and WIRED's GeekDad team up for the Ultimate >>>>>>>> GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the >>>>>>>> lucky parental unit. See the prize list and enter to win: >>>>>>>> http://p.sf.net/sfu/thinkgeek-promo >>>>>>>> _______________________________________________ >>>>>>>> gumstix-users mailing list >>>>>>>> gum...@li... >>>>>>>> https://lists.sourceforge.net/lists/listinfo/gumstix-users >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>> ------------------------------------------------------------------------------ >>>>>>> ThinkGeek and WIRED's GeekDad team up for the Ultimate >>>>>>> GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the >>>>>>> lucky parental unit. See the prize list and enter to win: >>>>>>> http://p.sf.net/sfu/thinkgeek-promo >>>>>>> _______________________________________________ >>>>>>> gumstix-users mailing list >>>>>>> gum...@li... >>>>>>> https://lists.sourceforge.net/lists/listinfo/gumstix-users >>>>>>> >>>>>>> >>>>>>> >>>>>> ------------------------------------------------------------------------------ >>>>>> ThinkGeek and WIRED's GeekDad team up for the Ultimate >>>>>> GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the >>>>>> lucky parental unit. See the prize list and enter to win: >>>>>> http://p.sf.net/sfu/thinkgeek-promo >>>>>> _______________________________________________ >>>>>> gumstix-users mailing list >>>>>> gum...@li... >>>>>> https://lists.sourceforge.net/lists/listinfo/gumstix-users >>>>>> >>>>>> >>>>>> >>>>> ------------------------------------------------------------------------------ >>>>> ThinkGeek and WIRED's GeekDad team up for the Ultimate >>>>> GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the >>>>> lucky parental unit. See the prize list and enter to win: >>>>> http://p.sf.net/sfu/thinkgeek-promo >>>>> _______________________________________________ >>>>> gumstix-users mailing list >>>>> gum...@li... >>>>> https://lists.sourceforge.net/lists/listinfo/gumstix-users >>>>> >>>>> >>>> ------------------------------------------------------------------------------ >>>> ThinkGeek and WIRED's GeekDad team up for the Ultimate >>>> GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the >>>> lucky parental unit. See the prize list and enter to win: >>>> http://p.sf.net/sfu/thinkgeek-promo >>>> _______________________________________________ >>>> gumstix-users mailing list >>>> gum...@li... >>>> https://lists.sourceforge.net/lists/listinfo/gumstix-users >>>> >>>> >>>> >>> ------------------------------------------------------------------------------ >>> ThinkGeek and WIRED's GeekDad team up for the Ultimate >>> GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the >>> lucky parental unit. See the prize list and enter to win: >>> http://p.sf.net/sfu/thinkgeek-promo >>> _______________________________________________ >>> gumstix-users mailing list >>> gum...@li... >>> https://lists.sourceforge.net/lists/listinfo/gumstix-users >>> >>> >> I would love to see numbers on at least the base Overo Earth and Summit >> board. This would give us a good starting in designing our power >> systems to support projects based on the Overo. I think in general the >> we should focus more on the power underbelly of the platform. We need >> to come up with a very repeatable process to make sure it's accurate and >> that we can test it on our own to verify that our platform is operating >> within the baseline. My two cents. >> Mike >> >> ------------------------------------------------------------------------------ >> ThinkGeek and WIRED's GeekDad team up for the Ultimate >> GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the >> lucky parental unit. See the prize list and enter to win: >> http://p.sf.net/sfu/thinkgeek-promo >> _______________________________________________ >> gumstix-users mailing list >> gum...@li... >> https://lists.sourceforge.net/lists/listinfo/gumstix-users >> >> > ------------------------------------------------------------------------------ > ThinkGeek and WIRED's GeekDad team up for the Ultimate > GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the > lucky parental unit. See the prize list and enter to win: > http://p.sf.net/sfu/thinkgeek-promo > _______________________________________________ > gumstix-users mailing list > gum...@li... > https://lists.sourceforge.net/lists/listinfo/gumstix-users > That's the crux of the issue. There are so many variables. I suggest that we monitor the power usage at predetermined times during the boot and through-out a series of predefined tasks that might normally be run. If we base it off the Earth and Summit we can provide the best-case scenario that be can shoot for. Again, just another 2 cents. Mike |
From: Philip B. <ph...@ba...> - 2010-06-05 12:40:39
|
On 06/03/2010 04:02 PM, Ash Charles wrote: > Hi Phil, > > Short answer: I'm sorry---I don't have these numbers. > > Long answer: > Your question prompted a little discussion in the office and two > questions popped up: > 1. Do we need power consumption numbers for all four Overos as well as > all the expansion boards (admittedly nice but this takes time when new > revs. are released) and what conditions are appropriate to test (wifi > sleeping, wifi fully active...)? Personally, I don't care about the expansion boards :) THe big problem is the range of power drawn by the COM's. The expansion boards should be a lot easier to characterize, especially once you know more about the COM's. For marketing purposes you would want the minimum power consumption, but when you are designing an expansion board, the maximum number is most important. THe other numbers are still interesting. For our case, the expansion board has an N volt supply and their are on-board regulators to supply other components. We need to know what the worst case current draw is to properly size the regulator powering the Overo. I don't think the worst case current/power draw will change much. Short term, having numbers for ARM+DSP+GPU active would be really helpful. (Or various combinations) > 2. Software changes can affect the power consumption substantially > (e.g. wifi power management now works on the new kernel so the power > numbers are better). How often|when do we need to redo the > benchmarks? I'd do these everytime you redo the marketing material. Philip > > I'd welcome any insight into these two questions. > > -Ash > > On Thu, Jun 3, 2010 at 12:41 PM, Philip Balister<ph...@ba...> wrote: >> On 06/03/2010 02:51 PM, Ash Charles wrote: >>> Hi Phil, >>> >>> The Overo uses the TPS65950 for power management which contains >>> several switching buck converters. >> >> Do you know the power consumption figures for the various COM's? >> >> Philip >> >>> >>> -Ash >>> >>> On Thu, Jun 3, 2010 at 11:03 AM, Philip Balister<ph...@ba...> wrote: >>>> On 06/03/2010 01:30 PM, R. P. McMurphy wrote: >>>>>>> Finally, does it matter if I use 4 volts versus 3.3 volts? >>>>> >>>>> No. The power usage is the same. Of course the input current will be >>>>> less at the higher voltage. >>>> >>>> That suggests the power supply on the Overo is a switcher. Do you know >>>> if this is true? >>>> >>>> Philip >>>> >>>> >>>> >>>>> >>>>> On 6/4/10, Philip Balister<ph...@ba...> wrote: >>>>>> Does anyone have comprehensive power consumption numbers for the Overo >>>>>> product line? I'm interested in numbers with and without wifi and for >>>>>> various clock speeds and with the DSP operating. >>>>>> >>>>>> This data should be really handy for people designing products around >>>>>> the Overo and I can't find anything on the website. >>>>>> >>>>>> Finally, does it matter if I use 4 volts versus 3.3 volts? >>>>>> >>>>>> Philip >>>>>> >>>>>> ------------------------------------------------------------------------------ >>>>>> ThinkGeek and WIRED's GeekDad team up for the Ultimate >>>>>> GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the >>>>>> lucky parental unit. See the prize list and enter to win: >>>>>> http://p.sf.net/sfu/thinkgeek-promo >>>>>> _______________________________________________ >>>>>> gumstix-users mailing list >>>>>> gum...@li... >>>>>> https://lists.sourceforge.net/lists/listinfo/gumstix-users >>>>>> >>>>> >>>>> ------------------------------------------------------------------------------ >>>>> ThinkGeek and WIRED's GeekDad team up for the Ultimate >>>>> GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the >>>>> lucky parental unit. See the prize list and enter to win: >>>>> http://p.sf.net/sfu/thinkgeek-promo >>>>> _______________________________________________ >>>>> gumstix-users mailing list >>>>> gum...@li... >>>>> https://lists.sourceforge.net/lists/listinfo/gumstix-users >>>>> >>>> >>>> ------------------------------------------------------------------------------ >>>> ThinkGeek and WIRED's GeekDad team up for the Ultimate >>>> GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the >>>> lucky parental unit. See the prize list and enter to win: >>>> http://p.sf.net/sfu/thinkgeek-promo >>>> _______________________________________________ >>>> gumstix-users mailing list >>>> gum...@li... >>>> https://lists.sourceforge.net/lists/listinfo/gumstix-users >>>> >>> >>> ------------------------------------------------------------------------------ >>> ThinkGeek and WIRED's GeekDad team up for the Ultimate >>> GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the >>> lucky parental unit. See the prize list and enter to win: >>> http://p.sf.net/sfu/thinkgeek-promo >>> _______________________________________________ >>> gumstix-users mailing list >>> gum...@li... >>> https://lists.sourceforge.net/lists/listinfo/gumstix-users >> >> ------------------------------------------------------------------------------ >> ThinkGeek and WIRED's GeekDad team up for the Ultimate >> GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the >> lucky parental unit. See the prize list and enter to win: >> http://p.sf.net/sfu/thinkgeek-promo >> _______________________________________________ >> gumstix-users mailing list >> gum...@li... >> https://lists.sourceforge.net/lists/listinfo/gumstix-users >> > > ------------------------------------------------------------------------------ > ThinkGeek and WIRED's GeekDad team up for the Ultimate > GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the > lucky parental unit. See the prize list and enter to win: > http://p.sf.net/sfu/thinkgeek-promo > _______________________________________________ > gumstix-users mailing list > gum...@li... > https://lists.sourceforge.net/lists/listinfo/gumstix-users |
From: Craig R H. <cr...@hu...> - 2004-05-28 23:06:12
|
Arthur, I was just looking at it actually on the bench about an hour or s= o ago (bluetooth prototype model!). With the bluetooth module essentially powe= red off, CPU running at 200MHz (it's actually a 400MHz cpu, but I'm initializ= ing it at 200MHz), while sitting at the login prompt after boot (ie basically id= le), it's drawing 0.03 amps. If I power up the bluetooth module, and start ru= nning some CPU using app, it still tends to stay below 0.2 amp. I haven't star= ted playing with telling the xscale to go into low power modes or anything --= it's just doing whatever the default thing the linux kernel does is (which mig= ht actually be to tell the xscale to save power). C Quoting Arthur Magill <ar...@ar...>: > Hello all, >=20 > I've just been looking over the gumstix specs again, and noticed the=20 > power consumption. Does it really draw 0.25A - that sounds like a heck=20 > of a lot! Has anyone measured what it actually draws in fairly quiet=20 > operating conditions? And how easy is it to put to sleep/wake up again?= =20 > From the OS end, Does it use ACPI or something similar? >=20 > Funny how one question always turns into several when I start writing=20 > the email... >=20 > Thanks in advance, >=20 > Arthur >=20 > This message has been scanned but we cannot guarantee that it and any > attachments are free from viruses or other damaging content: you are > advised to perform your own checks. Email communications with the > University of Nottingham may be monitored as permitted by UK legislatio= n. >=20 >=20 >=20 > ------------------------------------------------------- > This SF.Net email is sponsored by: Oracle 10g > Get certified on the hottest thing ever to hit the market... Oracle 10g= .=20 > Take an Oracle 10g class now, and we'll give you the exam FREE. > http://ads.osdn.com/?ad_id=3D3149&alloc_id=3D8166&op=3Dclick > _______________________________________________ > gumstix-users mailing list > gum...@li... > https://lists.sourceforge.net/lists/listinfo/gumstix-users >=20 |
From: Arthur M. <ar...@ar...> - 2004-06-01 09:40:18
|
Hello Craig, News hot from the workbench - it doesn't come better! 30mA idling sounds much more workable, and 200mA working is okay. I was starting to worry about the size of battery I'd need. I guess I need to go through the datasheet and learn about low power modes. And the bluetooth modules are on their way, very good news. Thanks, Arthur Craig R Hughes wrote: > Arthur, I was just looking at it actually on the bench about an hour or so ago > (bluetooth prototype model!). With the bluetooth module essentially powered > off, CPU running at 200MHz (it's actually a 400MHz cpu, but I'm initializing it > at 200MHz), while sitting at the login prompt after boot (ie basically idle), > it's drawing 0.03 amps. If I power up the bluetooth module, and start running > some CPU using app, it still tends to stay below 0.2 amp. I haven't started > playing with telling the xscale to go into low power modes or anything -- it's > just doing whatever the default thing the linux kernel does is (which might > actually be to tell the xscale to save power). > > C > |