The manual(s) seem to be lacking on charge pump operation and this being my first foray into the world of CNC I have a couple questions:
1. Does the charge pump run non stop from the time you open EMC till you close it (or it crashes) or does it stop on E-Stop condition?
2. To add it to my setup do I need to add anything other than the following 4 lines to my machines .hal file:
net charge-pump <= charge.pump-out
addf charge-pump base-thread
net charge-pump => parport.0.pin-xx-out
My intention is to have the charge pump wait for EMC to be running then close a contactor supplying the stepper controller powersupply and the mill control circuitry. That limits me to one power button as opposed to 3. I may even add a relay to drop the panel power switch out once the charge pump engages so that I can't accidentally bump it and upset the OS at all. But I don't want the mill and power supply to be shutdown completely with the activation of E-Stop, just stop motion and spindle rotation.
Am I correct or am I a resident of left field?