On Fri, 25 Jul 2014, Marius Liebenberg wrote: > Date: Fri, 25 Jul 2014 20:02:53 +0200 > From: Marius Liebenberg <[email protected]> > Reply-To: "Enhanced Machine Controller (EMC)" > <[email protected]> > To: [email protected] > Subject: Re: [Emc-users] Stepper driven A axis with servos > > Peter > Please give some more info on this please. > > I tried the setup today on the machine. I loaded a stepgen but had to > load it into the servo thread. I thought that was way to slow at 1us. > Then tried to load another thread but got and error that said it was not > permitted. > Apart form having power supply problems I could see pulses coming from > the parport on halscope. It al seemed very sluggish though. > > Any suggestions on getting stepgen to run in a faster thread?
If you are using a parallel port for software generated steps you will need a fast base thread (just look at a standard parallel port config for thread setup etc) Another option is to use 5I25 hardware stepgens on P2 so you only need one 1 KHz thread > > > On 2014-07-24 21:23, Peter C. Wallace wrote: >> On Thu, 24 Jul 2014, andy pugh wrote: >> >>> Date: Thu, 24 Jul 2014 20:17:04 +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] Stepper driven A axis with servos >>> >>> On 24 July 2014 20:12, Marius Liebenberg <[email protected]> wrote: >>> >>>> I am going to put the stepper on the parport with a cheap bob. The rest >>>> is 5i23 with 7i77. >>> Do you mean 5i25? >>> >>> Rather than use a real parport, put a parport breakout on the 5i25 >>> internal header and run the BoB using a 7i77 / 7i76 firmware and you >>> get Mesa stepgens. >>> >>> >>> -- >>> atp >>> If you can't fix it, you don't own it. >>> http://www.ifixit.com/Manifesto >> >> Theres also BOB compatible firmware fo a couple of BOB flavors >> >> >> (and you can run a 7I76/77 from a 5I23/5I20 but it needs a cable adapter) >> >>> ------------------------------------------------------------------------------ >>> Want fast and easy access to all the code in your enterprise? Index and >>> search up to 200,000 lines of code with a free copy of Black Duck >>> Code Sight - the same software that powers the world's largest code >>> search on Ohloh, the Black Duck Open Hub! Try it now. >>> http://p.sf.net/sfu/bds >>> _______________________________________________ >>> 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. >> >> >> ------------------------------------------------------------------------------ >> Want fast and easy access to all the code in your enterprise? Index and >> search up to 200,000 lines of code with a free copy of Black Duck >> Code Sight - the same software that powers the world's largest code >> search on Ohloh, the Black Duck Open Hub! Try it now. >> http://p.sf.net/sfu/bds >> _______________________________________________ >> Emc-users mailing list >> [email protected] >> https://lists.sourceforge.net/lists/listinfo/emc-users >> > > -- > > Regards /Groete > > Marius D. Liebenberg > +27 82 698 3251 > +27 12 743 6064 > QQ 1767394877 > > > ------------------------------------------------------------------------------ > Want fast and easy access to all the code in your enterprise? Index and > search up to 200,000 lines of code with a free copy of Black Duck > Code Sight - the same software that powers the world's largest code > search on Ohloh, the Black Duck Open Hub! Try it now. > http://p.sf.net/sfu/bds > _______________________________________________ > 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. ------------------------------------------------------------------------------ Want fast and easy access to all the code in your enterprise? Index and search up to 200,000 lines of code with a free copy of Black Duck Code Sight - the same software that powers the world's largest code search on Ohloh, the Black Duck Open Hub! Try it now. http://p.sf.net/sfu/bds _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
