I have driven IM483 drives with LinuxCNC using a D525MW board and I didn't have any issues at all. I did use a breakout board to do that though. So I suspect that your breakout board is faulty or you have some other wiring issues.
I've used the previous version of the C10 board and that it worked fine. Dave On 3/8/2015 2:34 PM, Neil wrote: > Hi all, > > Haven't found a clear answer to this yet in the archives, so hoping > someone can help. > > I've just gotten back to a homebrew CNC machine project from a few years > ago and need to figure out why I'm getting incorrect/missing steps. > Using an Intel D525MW and IM483 stepper drivers. I was using a homebrew > opto-isolator board, and got the incorrect/lost steps, so I tried > without (direct from par-port to drives) and getting a lot of chatter. > With this, moving the X-axis gets me enough noise on the Y-axis lines > that the Y-axis will move. > > An oscilloscope shows me that the parallel-port output seems to be 3.3V, > and I've got noise of up to 1.8V on the step line! Other than shielded > wires, I need a decent buffered breakout board. Space is very tight, so > leaning towards the C10S from cnc4pc.com here... > http://www.cnc4pc.com/Store/osc/product_info.php?cPath=33&products_id=696 > > Do you think this would resolve my issue? > > Thanks. > > > ------------------------------------------------------------------------------ > Dive into the World of Parallel Programming The Go Parallel Website, sponsored > by Intel and developed in partnership with Slashdot Media, is your hub for all > things parallel software development, from weekly thought leadership blogs to > news, videos, case studies, tutorials and more. Take a look and join the > conversation now. http://goparallel.sourceforge.net/ > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users --- This email has been checked for viruses by Avast antivirus software. http://www.avast.com ------------------------------------------------------------------------------ Dive into the World of Parallel Programming The Go Parallel Website, sponsored by Intel and developed in partnership with Slashdot Media, is your hub for all things parallel software development, from weekly thought leadership blogs to news, videos, case studies, tutorials and more. Take a look and join the conversation now. http://goparallel.sourceforge.net/ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
