On Tuesday 20 October 2020 07:08:26 andy pugh wrote: > On Tue, 20 Oct 2020 at 10:22, Gene Heskett <ghesk...@shentel.net> wrote: > > [485180.220310] hm2/hm2_5i25.0: IO Pin 008 (P3-05): PWMGen #0, > > pin Out1 (Dir or Down) (Output) [485180.220317] hm2/hm2_5i25.0: > > IO Pin 009 (P3-06): PWMGen #0, pin Out0 (PWM or Up) (Output) > > > > Which is NOT where they actually are on the 7i76D! > > This leads me to suspect that you are not using the firmware that you > think you are, or that you are deliberately using a non-7i76 firmware. > The 7i76 does not use _any_ PWM signals, the spindle interface is part > of the smart-serial subsystem.
And in a pwmgen driven spindle, TB4 is worthless except for the enable on Jon's pwm-servo which is driveing the 1hp spindle motor. But now that I've found the PWMGEN.0 signals on STEP4, I'm driving the spindle normally from those. Which frees up the 2nd pwmgen I was driving the spindle with. > I would expect those PWM signals to be replacing the stepgen4 outputs. Yes. Zero, zip, squat, nada mention of that teeny little detail. > So it is all documented, if you allow for the fact that you are using > an incorrect (or at least custom) firmware. In fact, I'm considering swapping the pwmgen.0/.1's duties to drive the spindle from pwmgen.1, (as I was formerly doing for the last 4 years) and use pwmgen.0 to drive the BS-1 motor because of pwmgen.0's availability of its complementary dir signals on the stepgen4's pins. Those wires will reach either card in my box so that can be done rather easily. And it will remove 2 comp modules from the hal file. Always desirable on slower cpu's. Thanks Andy. 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) If we desire respect for the law, we must first make the law respectable. - Louis D. Brandeis Genes Web page <http://geneslinuxbox.net:6309/gene> _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
