## Re: [Gumstix-users] Power consumption question

 Re: [Gumstix-users] Power consumption question From: Black, Michael - 2007-08-05 14:31:47 ```Seeing as how the power requirements are "approximate" anyways a simple = linear interpolation should work fine. The way I read this is .1A for 200Mhz difference at 100% (.22A - .12A) = or .0005 amp per Mhz So just calculate the Mhz difference from 200Mhz -- multiply by .0005 = and add/subtract as appropriate. Should be fairly close. If you want the idle usage it's approximately .025A (.06 - .035) for = 200Mhz difference or .000125A per Mhz If you're worried about battery life don't forget to convert the amps = for the appropriate voltage. ___________________ Michael D. Black black@... -----Original Message----- From: gumstix-users-bounces@... = [mailto:gumstix-users-bounces@...] On Behalf Of P G Sent: Saturday, August 04, 2007 1:26 PM To: gumstix-users@... Subject: Re: [Gumstix-users] Power consumption question Thanks, I already saw this page, but I would need more detailed information. It only gives the values for 2 out of the 6 possible frequencies. Paolo Don Anderson wrote: >http://docwiki.gumstix.org/Power_spec > > >Don > > > >At 2:42 PM 0000 8/4/07, P G wrote: > >>Hi, >> >>I would need to know how much power the gumstix board uses at = different >>frequencies (99.1Mhz up to 398.1Mhz) and at high load. The power >>consumption of only the memory/cpu components would be ideal. Is there >>an easy way to find this out? Is there somebody that has this data >>readily available (that would be too good to be true). >> >>What would be the easiest way to get the power consumption values. = Right >>now I'm thinking of cutting the power cord and putting an ammeter in >>serial and assuming that the voltage is a constant 5V. >> >>Cheers, >>Paolo >> >>_________________________________________________________________ >>Put Your Face In Your Space with Windows Live Spaces >>http://spaces.live.com/?mkt=3Den-ca >> >> >>-----------------------------------------------------------------------= -- >>This SF.net email is sponsored by: Splunk Inc. >>Still grepping through log files to find problems? Stop. >>Now Search log events and configuration files using AJAX and a = browser. >>Download your FREE copy of Splunk now >> http://get.splunk.com/ >>_______________________________________________ >>gumstix-users mailing list >>gumstix-users@... >>https://lists.sourceforge.net/lists/listinfo/gumstix-users >> > > > > > > > > > > > > > >=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D > >Don Anderson http://www.gumstix.com > >=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D > _________________________________________________________________ Windows Live Hotmail is the next generation of MSN Hotmail. It's fast,=20 simple, and safer than ever and best of all - it's still free. Try it = today!=20 http://www.newhotmail.ca?icid=3DWLHMENCA146 =20 =20 =20 =20 =20 =20 =20 This electronic message and any files transmitted with it contain = information which may be privileged and/or proprietary. The information = is intended for use solely by the intended recipient(s). If you are not = the intended recipient, be aware that any disclosure, copying, = distribution or use of this information is prohibited. If you have = received this electronic message in error, please advise the sender by = reply email or by telephone (301-939-7000) and delete the message. ```

 Re: [Gumstix-users] Power consumption question From: P G - 2007-08-04 18:26:33 ```Thanks, I already saw this page, but I would need more detailed information. It only gives the values for 2 out of the 6 possible frequencies. Paolo Don Anderson wrote: >http://docwiki.gumstix.org/Power_spec > > >Don > > > >At 2:42 PM 0000 8/4/07, P G wrote: > >>Hi, >> >>I would need to know how much power the gumstix board uses at different >>frequencies (99.1Mhz up to 398.1Mhz) and at high load. The power >>consumption of only the memory/cpu components would be ideal. Is there >>an easy way to find this out? Is there somebody that has this data >>readily available (that would be too good to be true). >> >>What would be the easiest way to get the power consumption values. Right >>now I'm thinking of cutting the power cord and putting an ammeter in >>serial and assuming that the voltage is a constant 5V. >> >>Cheers, >>Paolo >> >>_________________________________________________________________ >>Put Your Face In Your Space with Windows Live Spaces >>http://spaces.live.com/?mkt=en-ca >> >> >>------------------------------------------------------------------------- >>This SF.net email is sponsored by: Splunk Inc. >>Still grepping through log files to find problems? Stop. >>Now Search log events and configuration files using AJAX and a browser. >>Download your FREE copy of Splunk now >> http://get.splunk.com/ >>_______________________________________________ >>gumstix-users mailing list >>gumstix-users@... >>https://lists.sourceforge.net/lists/listinfo/gumstix-users >> > > > > > > > > > > > > > >==================================================================== > >Don Anderson http://www.gumstix.com > >==================================================================== > _________________________________________________________________ Windows Live Hotmail is the next generation of MSN Hotmail.  Its fast, simple, and safer than ever and best of all  its still free. Try it today! http://www.newhotmail.ca?icid=WLHMENCA146 ```
 Re: [Gumstix-users] Power consumption question From: Black, Michael - 2007-08-05 14:31:47 ```Seeing as how the power requirements are "approximate" anyways a simple = linear interpolation should work fine. The way I read this is .1A for 200Mhz difference at 100% (.22A - .12A) = or .0005 amp per Mhz So just calculate the Mhz difference from 200Mhz -- multiply by .0005 = and add/subtract as appropriate. Should be fairly close. If you want the idle usage it's approximately .025A (.06 - .035) for = 200Mhz difference or .000125A per Mhz If you're worried about battery life don't forget to convert the amps = for the appropriate voltage. ___________________ Michael D. Black black@... -----Original Message----- From: gumstix-users-bounces@... = [mailto:gumstix-users-bounces@...] On Behalf Of P G Sent: Saturday, August 04, 2007 1:26 PM To: gumstix-users@... Subject: Re: [Gumstix-users] Power consumption question Thanks, I already saw this page, but I would need more detailed information. It only gives the values for 2 out of the 6 possible frequencies. Paolo Don Anderson wrote: >http://docwiki.gumstix.org/Power_spec > > >Don > > > >At 2:42 PM 0000 8/4/07, P G wrote: > >>Hi, >> >>I would need to know how much power the gumstix board uses at = different >>frequencies (99.1Mhz up to 398.1Mhz) and at high load. The power >>consumption of only the memory/cpu components would be ideal. Is there >>an easy way to find this out? Is there somebody that has this data >>readily available (that would be too good to be true). >> >>What would be the easiest way to get the power consumption values. = Right >>now I'm thinking of cutting the power cord and putting an ammeter in >>serial and assuming that the voltage is a constant 5V. >> >>Cheers, >>Paolo >> >>_________________________________________________________________ >>Put Your Face In Your Space with Windows Live Spaces >>http://spaces.live.com/?mkt=3Den-ca >> >> >>-----------------------------------------------------------------------= -- >>This SF.net email is sponsored by: Splunk Inc. >>Still grepping through log files to find problems? Stop. >>Now Search log events and configuration files using AJAX and a = browser. >>Download your FREE copy of Splunk now >> http://get.splunk.com/ >>_______________________________________________ >>gumstix-users mailing list >>gumstix-users@... >>https://lists.sourceforge.net/lists/listinfo/gumstix-users >> > > > > > > > > > > > > > >=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D > >Don Anderson http://www.gumstix.com > >=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D > _________________________________________________________________ Windows Live Hotmail is the next generation of MSN Hotmail. It's fast,=20 simple, and safer than ever and best of all - it's still free. Try it = today!=20 http://www.newhotmail.ca?icid=3DWLHMENCA146 =20 =20 =20 =20 =20 =20 =20 This electronic message and any files transmitted with it contain = information which may be privileged and/or proprietary. The information = is intended for use solely by the intended recipient(s). If you are not = the intended recipient, be aware that any disclosure, copying, = distribution or use of this information is prohibited. If you have = received this electronic message in error, please advise the sender by = reply email or by telephone (301-939-7000) and delete the message. ```