Ray As far as i know i have Standby Disabled on the gecko,but i will check
On 23/02/14 15:07, jrmitchellj . wrote: > You might try hanging a current probe on the output of the Gecko to see if > it is switching between run current mode and standby current mode when the > direction line is being toggled. > It shouldn't cause any harm, just more power used. > > Ray > > --J. Ray Mitchell Jr. > jrmitche...@gmail.com > (818)324-7573 > > > "Normal people ... believe that if it ain't broke, don't fix it. Engineers > believe that if it ain't broke, it doesn't have enough features yet." > > -- Scott Adams, creator of Dilbert comic strip > > > > > On Sat, Feb 22, 2014 at 12:20 PM, Dave Cole <linuxcncro...@gmail.com> wrote: > >> Damage the Gecko?? >> >> That is extremely unlikely. >> >> If it is not going into standby your motor might get hot, but if you >> have the Gecko properly heatsinked there should >> not be an issue with it. >> >> Dave >> >> On 2/22/2014 2:57 PM, Mark Tucker wrote: >>> Thanks >>> That seems to have nailed it for me now i can very clearly understand >>> why no pulse is emitted on the pulse line. >>> Well that brings us back to the question of who is going to fix the >> problem? >>> Is there anyone else working on this other than charles that can maybe >>> work around this using the stepgen velocity mode and deadband etc in Hal? >>> I am a little worried about using it on a daily basis just in case it is >>> damaging the Gecko. >>> I will maybe see if i can get an explanation on one of the Geckodrive >>> haunts. >>> >>> On 22/02/14 19:30, Peter C. Wallace wrote: >>>> On Sat, 22 Feb 2014, Mark Tucker wrote: >>>> >>>>> Date: Sat, 22 Feb 2014 19:20:57 +0000 >>>>> From: Mark Tucker <m...@rmtucker.f2s.com> >>>>> Reply-To: "Enhanced Machine Controller (EMC)" >>>>> <emc-users@lists.sourceforge.net> >>>>> To: "Enhanced Machine Controller (EMC)" < >> emc-users@lists.sourceforge.net> >>>>> Subject: Re: [Emc-users] Crackling motors using Beaglebone >>>>> >>>>> John >>>>> >>>>> Thank you so much for the insight of how that work and it explains a >> lot. >>>>> But as you stated it would be hunting back and forth.Which i assume it >>>>> would have to pulse the step line? >>>>> And a number of people have scoped the outputs and only found the Dir >>>>> line hunting back and forth,i wonder why it is not detected on the step >>>>> line.? >>>>> And if it is only the dir line,why would the motors make a noise at >> all? >>>> The internal stepgen position has a resolution of a small fraction of a >> step >>>> (1/10000 of a step in Johns example) so it can hunt back and forth >> without >>>> emitting a step. >>>> >>>> As to why a step drive pays any attention to the dir signal without a >> step >>>> pulse I do not know, seems like a mistake to me. >>>> >>>> >>>> Peter Wallace >>>> Mesa Electronics >>>> >>>> >> ------------------------------------------------------------------------------ >>>> Managing the Performance of Cloud-Based Applications >>>> Take advantage of what the Cloud has to offer - Avoid Common Pitfalls. >>>> Read the Whitepaper. >>>> >> http://pubads.g.doubleclick.net/gampad/clk?id=121054471&iu=/4140/ostg.clktrk >>>> _______________________________________________ >>>> Emc-users mailing list >>>> Emc-users@lists.sourceforge.net >>>> https://lists.sourceforge.net/lists/listinfo/emc-users >>>> >>>> >>> >> ------------------------------------------------------------------------------ >>> Managing the Performance of Cloud-Based Applications >>> Take advantage of what the Cloud has to offer - Avoid Common Pitfalls. >>> Read the Whitepaper. >>> >> http://pubads.g.doubleclick.net/gampad/clk?id=121054471&iu=/4140/ostg.clktrk >>> _______________________________________________ >>> Emc-users mailing list >>> Emc-users@lists.sourceforge.net >>> https://lists.sourceforge.net/lists/listinfo/emc-users >> >> ------------------------------------------------------------------------------ >> Managing the Performance of Cloud-Based Applications >> Take advantage of what the Cloud has to offer - Avoid Common Pitfalls. >> Read the Whitepaper. >> >> http://pubads.g.doubleclick.net/gampad/clk?id=121054471&iu=/4140/ostg.clktrk >> _______________________________________________ >> Emc-users mailing list >> Emc-users@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/emc-users >> > ------------------------------------------------------------------------------ > Managing the Performance of Cloud-Based Applications > Take advantage of what the Cloud has to offer - Avoid Common Pitfalls. > Read the Whitepaper. > http://pubads.g.doubleclick.net/gampad/clk?id=121054471&iu=/4140/ostg.clktrk > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > > ------------------------------------------------------------------------------ Managing the Performance of Cloud-Based Applications Take advantage of what the Cloud has to offer - Avoid Common Pitfalls. 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