On Thu, 2012-02-02 at 22:21 -0500, gene heskett wrote: > what can he use for an exciting signal?
It seems I'm missing something obvious. I thought the idea was to move the motor back & forth while comparing the commanded (presumably, the actual) position with the encoder's (also, presumably, the actual) position to see if there's any lag / jitter / instability between the two. Using freqgen (plus stepgen or whatever the motor might require) to drive the motor should accomplish the first part. Triggering halscope on (some part of) the output signal, then displaying both output and input traces will reveal their relation. Then use siggen to ramp / sawtooth freqgen and you'll see how the relation varies with speed & acceleration. Yes? -- Ed http://softsolder.com ------------------------------------------------------------------------------ Try before you buy = See our experts in action! The most comprehensive online learning library for Microsoft developers is just $99.99! Visual Studio, SharePoint, SQL - plus HTML5, CSS3, MVC3, Metro Style Apps, more. Free future releases when you subscribe now! http://p.sf.net/sfu/learndevnow-dev2 _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
