On Tuesday 22 May 2018 02:29:33 John Dammeyer wrote: > I've used the stepconf wizard to assign to DB25-17. > > The hal file ends up with this: > > loadrt charge_pump > net estop-out charge-pump.enable iocontrol.0.user-enable-out > net charge-pump <= charge-pump.out > > addf charge-pump base-thread > > net charge-pump => parport.0.pin-17-out > > net estop-out <= iocontrol.0.user-enable-out > net estop-ext => iocontrol.0.emc-enable-in > > A scope on the DB-25 pin 17 does not show any sort of pulse stream. I > know the signal is making it from the PC out to the Breakout board > because if I assign pin 17 to say coolant instead of charge pump I can > click on the flood on check box and toggle the flood output signal. > > If I understand the hal file correctly the charge pump code is loaded, > the estop_out pin and charge-pump.enable are dependent on the > user-enable-out which is controlled by the ENABLE button on the top > left part of the screen. The charge-pump variable is set with > charge-pump.out > And the charge-pump variable is put out to the pin-17. > > I can delete all those lines and then run stepconf wizard which > recreates what I have above. > > I think I'm doing everything mentioned here. > http://wiki.linuxcnc.org/cgi-bin/wiki.pl?About_Charge_Pumps > > What's missing to enable charge pump? > > Thanks > John > The charge pump has only one output, and I needed two in order to control the jig's location bar. So I fed the charge-pump output to a couple and2's and gated them to control the outputs to drive the bucket thingy and relays that ran the motors, re-purposing the mist and flood functions.
I have since parked that jig, and am now switching a vacuum to collect swarf with it. Use the halscope to check why the signal isn't getting out. > > ---------------------------------------------------------------------- >-------- Check out the vibrant tech community on one of the world's > most engaging tech sites, Slashdot.org! http://sdm.link/slashdot > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users -- Cheers, Gene Heskett -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) Genes Web page <http://geneslinuxbox.net:6309/gene> ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
