On Friday 31 May 2013 00:10:22 andy pugh did opine: > On 30 May 2013 14:40, Gene Heskett <[email protected]> wrote: > > I sent a decent part of yesterday scribbling logic diagrams w/o coming > > up with anything that looks like it would work. The truth tables > > seem to be mutually exclusive. > > LUT5 is just a lookup, not a truth table, so every possible > combination of inputs has an output. > > You may need to create inputs such as spindle-was-running and > spindle-was-stopped to get what you need.
Andy, here is what I wound up adding in the .hal file: loadrt and2 count=7 # and2.4, and2.5 for off lockouts loadrt oneshot count=1 # delay to lockout spindle on after off loadrt edge count=1 # to detect an on and clock the flipflop loadrt flipflop count=1 # to control motion.spindle-on targets loadrt not count=1 addf abs.5 servo-thread # addf abs.4 servo-thread # make pyvcp tach read upscale in reverse addf oneshot.0 servo-thread # to detect spindle is running addf and2.4 servo-thread # to interlock off delay addf not.0 servo-thread # need a true for motion.spindle-off addf edge.0 servo-thread # detect a spindle-on with addf flipflop.0 servo-thread # to sequence the spindle-on signal setp oneshot.0.width 0.1 # seconds for it to time out net spindle-is-running oneshot.0.out net spindle-is-stopped oneshot.0.out-not and2.4.in1 setp edge.0.in-edge false setp edge.0.out-width-ns 40000 # in nanoseconds! net spindle-on-edge edge.0.out flipflop.0.clk # this might be where we plug in the braking delay lockout # net spindle-enable motion.spindle-on pwmgen.0.enable pid.0.enable net spindle-enable motion.spindle-on edge.0.in and2.4.in0 not.0.in net spindle-lockout and2.4.out flipflop.0.data net spindle-off not.0.out flipflop.0.reset # unconditional off net spindle-stop flipflop.0.out pwmgen.0.enable pid.0.enable Before I did something to the MC60 controller, responses to axis gui mouse clicks or to mdi commands were as near to instant as before. 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> is up! My views <http://www.armchairpatriot.com/What%20Has%20America%20Become.shtml> "Well, if you can't believe what you read in a comic book, what *___can* you believe?!" -- Bullwinkle J. Moose [Jay Ward] A pen in the hand of this president is far more dangerous than 200 million guns in the hands of law-abiding citizens. ------------------------------------------------------------------------------ Get 100% visibility into Java/.NET code with AppDynamics Lite It's a free troubleshooting tool designed for production Get down to code-level detail for bottlenecks, with <2% overhead. Download for free and get started troubleshooting in minutes. http://p.sf.net/sfu/appdyn_d2d_ap2 _______________________________________________ Emc-developers mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-developers
