On Thu, 11 Jul 2013, andy pugh wrote: > Date: Thu, 11 Jul 2013 00:35:36 +0100 > From: andy pugh <[email protected]> > Reply-To: "Enhanced Machine Controller (EMC)" > <[email protected]> > To: "Enhanced Machine Controller (EMC)" <[email protected]> > Subject: Re: [Emc-users] Custom firmware for MESA and BLDC motors > > On 10 July 2013 16:15, John Kasunich <[email protected]> wrote: > >> I think it is a very low risk change, and should be OK for 2.5, but >> since Andy is the BLDC expert (sorry Andy ;-) I'll let him make >> the call. > > I was very impressed by the results, and the concept makes perfect sense. > The patch is very simple, so there isn't a lot that could go wrong. > Arguably it could be more general (I am thinking that perhaps we could > predict hall transitions mid-thread) but that could be a later > refinement, and would be hidden from users. > > I say push.
The only thing that might be nice is to have the ability to enable/disable this optimization. The reason is that on drives like the 8I20 we plan to add a velocity pin that will allow extrapolation of the commutation angle in the drive. I this case we want the current (encoder derived) angle, not an 1/2 servo thread ahead angle > > -- > atp > If you can't fix it, you don't own it. > http://www.ifixit.com/Manifesto > > ------------------------------------------------------------------------------ > See everything from the browser to the database with AppDynamics > Get end-to-end visibility with application monitoring from AppDynamics > Isolate bottlenecks and diagnose root cause in seconds. > Start your free trial of AppDynamics Pro today! > http://pubads.g.doubleclick.net/gampad/clk?id=48808831&iu=/4140/ostg.clktrk > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users > Peter Wallace Mesa Electronics (\__/) (='.'=) This is Bunny. Copy and paste bunny into your (")_(") signature to help him gain world domination. ------------------------------------------------------------------------------ See everything from the browser to the database with AppDynamics Get end-to-end visibility with application monitoring from AppDynamics Isolate bottlenecks and diagnose root cause in seconds. Start your free trial of AppDynamics Pro today! http://pubads.g.doubleclick.net/gampad/clk?id=48808831&iu=/4140/ostg.clktrk _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
