thanks Peter , well in this instance it's only a 8 station tool turret so not motion , so it may be well worth a shot , what do you think ? can you sort a vhd file and i'll give it a go , at least you'll know one way or another
failing that i'll move things around and pull in the second port Dave On 6 December 2014 at 18:14, Peter C. Wallace <[email protected]> wrote: > On Sat, 6 Dec 2014, David Armstrong wrote: > > > Date: Sat, 6 Dec 2014 17:57:21 +0000 > > From: David Armstrong <[email protected]> > > Reply-To: EMC developers <[email protected]> > > To: EMC developers <[email protected]> > > Subject: [Emc-developers] 7i77 and stepper output > > > > more for PCW i'd expect : > > > > is it possible to get a stepgen output from a 5i25/7i77 card > > either from one of the servo outputs or from 2 gpio pins ? , ( needed > for a > > toolchanger ) > > either TB5;DRV3 or any gpio on TB7 > > > > (in this particular case i dont have the option of using use directly > from > > the 5i25 ) > > > > I presume a flash update will be required too of course > > > > > > Dave > > > ------------------------------------------------------------------------------ > > Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server > > from Actuate! Instantly Supercharge Your Business Reports and Dashboards > > with Interactivity, Sharing, Native Excel Exports, App Integration & more > > Get technology previously reserved for billion-dollar corporations, FREE > > > http://pubads.g.doubleclick.net/gampad/clk?id=164703151&iu=/4140/ostg.clktrk > > _______________________________________________ > > Emc-developers mailing list > > [email protected] > > https://lists.sourceforge.net/lists/listinfo/emc-developers > > > > Not really possible to do high performance stepgens > from the 7I77, though you could use the field I/O for low step rate > motion (using a software stepgen at the servo thread rate) a decent MB will > allow a 4 KHz servo thread so that gets you to a 2 KHz step rate, not grets > but maybe useable > > Theres really only one high speed output on the 7I77 card and thats > the expansion RS-422 TX pin. so I guess something could be rigged up to use > a field I/O for direction and the RS-422 pin for stepgen but its pretty M^2 > > Better choice is probably to use the other 5I25 connector > > Peter Wallace > Mesa Electronics > > (\__/) > (='.'=) This is Bunny. Copy and paste bunny into your > (")_(") signature to help him gain world domination. > > > > ------------------------------------------------------------------------------ > Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server > from Actuate! Instantly Supercharge Your Business Reports and Dashboards > with Interactivity, Sharing, Native Excel Exports, App Integration & more > Get technology previously reserved for billion-dollar corporations, FREE > > http://pubads.g.doubleclick.net/gampad/clk?id=164703151&iu=/4140/ostg.clktrk > _______________________________________________ > Emc-developers mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-developers > ------------------------------------------------------------------------------ Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server from Actuate! Instantly Supercharge Your Business Reports and Dashboards with Interactivity, Sharing, Native Excel Exports, App Integration & more Get technology previously reserved for billion-dollar corporations, FREE http://pubads.g.doubleclick.net/gampad/clk?id=164703151&iu=/4140/ostg.clktrk _______________________________________________ Emc-developers mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-developers
