On Thursday, February 02, 2012 10:20:56 PM Ed Nisley did opine: > On Thu, 2012-02-02 at 09:36 -0500, gene heskett wrote: > > that would require a function generator > > Perhaps gimmicking up a HAL circuit with siggen or freqgen to drive the > stepper, then compare the encoder input with the motor output? You > probably don't need a sine wave, just drive the motor back and forth at > a variable rate: siggen providing a sawtooth wave to freqgen? > > Surely it'd be more complex than that, but triggering on one edge of the > motor output and looking at the corresponding encoder edges should be > revealing...
In violent agreement Ed, but what can he use for an exciting signal? Cheers, Gene -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) My web page: <http://coyoteden.dyndns-free.com:85/gene> You have a strong desire for a home and your family interests come first. ------------------------------------------------------------------------------ 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 [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
