What I have in mind is my own "daughtercard". Encoders would be fed through to the 5i25. I would use a mcp3208 in spi mode to give me 8 analog inputs, assuming the 5i25 can do it.
I have been looking at the gecko drives, they are 10x microstepping, which seems overkill. They do have some decent features though. However, my computer can only do 15khz software step generation, which doesn't do well with 10x microstepping and speed. On Thu, Feb 16, 2012 at 8:55 AM, Andy Pugh <bodge...@gmail.com> wrote: > > > On 16 Feb 2012, at 14:29, Erik Friesen <e...@aercon.net> wrote: > > > How feasible is it to use the mesa 5i25 in a similar way to the universal > > stepper controller? IE.. Use hardware step generation + encoder > feedback? > > Just a bare 5i25, or using daughter cards? > You ought to be able to do it with a 7i76 and a 7i77 (that's the stepper > board _and_ the servo board at the same time. Otherwise you would need a > special firmware I think. 25 pins might be a bit few, though there is a > second 25 pin header too. The dedicated daughter boards use > serial-connected hardware for the extra IO pins with only the stepgens, > encoders and pwms wired direct back to the 5i25. > > ------------------------------------------------------------------------------ > Virtualization & Cloud Management Using Capacity Planning > Cloud computing makes use of virtualization - but cloud computing > also focuses on allowing computing to be delivered as a service. > http://www.accelacomm.com/jaw/sfnl/114/51521223/ > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > ------------------------------------------------------------------------------ Virtualization & Cloud Management Using Capacity Planning Cloud computing makes use of virtualization - but cloud computing also focuses on allowing computing to be delivered as a service. http://www.accelacomm.com/jaw/sfnl/114/51521223/ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
