On Tue, 5 Jun 2012 16:39:52 -0400 gene heskett <[email protected]> wrote:
> On Tuesday, June 05, 2012 04:34:32 PM David Dyke did opine: > > > I am having some difficulty reading a Heidenhain exe650 with a 5i20/ > > 7i33 combo, I can see counts in hal, but regardless of direction of > > motion, I only see counting in one direction. > > I have configured as usual for differential and other feedback is > > counting correctly, anyone know what I am missing. > > > > Dave > > In order to be able to determine the direction, the input signalS > must have an A & B phase in some phase progression that reverses when > the direction reverses. Do you have that condition, verified by a > dual trace oscilloscope? > > Cheers, Gene I'm with Gene, somehow you are not getting both A and B signals thru hal and into the board. My guess is you can disconnect A and test and then reconnect A and disconnect B. One of them won't make any difference and that is where you look for a problem. Since that can be done in hal it is pretty painless, well as painless as troubleshooting can be. ;-) Good luck. Dave ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
