Ok, so I've configured the IO lines as X = 2,3 & 14 enable pin, Y = 4,5 & 16 enable pin, Z = 6,7 & 17 enable pin.
I've saved the config, reset the ports... and still I have no response from the motors, no high frequency buzzing.... nothing at all.
However, there is something going on ... because when I get out of turbocnc and the program closes out, the X motor jumps by a step.
I wonder what this indicates ? I've also tried reversing the step and dir pins as well ( X = 3,2 &14 ) and so on. I'm running this one axis on it's own 12vdc pwr supply with a current resistor to bring the current down to the req's.
My fear is that I've been in the IT field so long that the problem here is probably so blatantly obvious that I'm overanalyzing it and overseeing the configuration issue which is most likely right under my nose.
thanks,
-art |