I've changed the subject line to more reflect the information I'm after.
So far I've been working through hal_parport.c, encoder.c, motion.c, stepgen.c
control.c and command.c.
I believe this function is called at the SERVO_PERIOD rate.
void emcmotCommandHandler(void *arg, long period)
The switch statement on emcmotCommand->command has
case EMCMOT_SPINDLE_ON :
and this fragment
emcmotStatus->spindle_status[spindle_num].speed =
emcmotCommand->vel;
emcmotStatus->spindle_status[spindle_num].css_factor =
emcmotCommand->ini_maxvel;
emcmotStatus->spindle_status[spindle_num].xoffset =
emcmotCommand->acc;
if (emcmotCommand->vel >= 0) {
emcmotStatus->spindle_status[spindle_num].direction = 1;
} else {
emcmotStatus->spindle_status[spindle_num].direction = -1;
}
emcmotStatus->spindle_status[spindle_num].brake = 0; //disengage
brake
emcmotStatus->atspeed_next_feed =
emcmotCommand->wait_for_spindle_at_speed;
But I don't see where emcmotCommand->command is changed.
Need to take a break from this.
John
>
> Thanks Andy,
> Just more and more complicated. Need to take a step back and just figure out
> how encoder edges seen as 1's and 0's in
> hal_parport.c turn into spindle velocity.
> And in the other direction how a S600 ends up as the PWM 1's and 0's in
> hal_parport.c.
> John Dammeyer
>
>
> > -----Original Message-----
> > From: andy pugh [mailto:[email protected]]
> > Sent: May-08-20 4:08 AM
> > To: Enhanced Machine Controller (EMC)
> > Subject: Re: [Emc-users] Sourced from: Re: Fluctuating RPM using CUI ATM 10
> > encoder
> >
> > On Fri, 8 May 2020 at 03:42, John Dammeyer <[email protected]> wrote:
> >
> > > Do you know which source code file has the G33.1 control? I'd like to
> > > look at how it's done.
> >
> > It's one of the more deeply-embedded ones as it needs to do a lot of
> > work in the realtime context.
> >
> > interp:
> > https://github.com/LinuxCNC/linuxcnc/blob/master/src/emc/rs274ngc/interp_convert.cc#L4764
> >
> > TP: https://github.com/LinuxCNC/linuxcnc/blob/master/src/emc/tp/tp.c#L1460
> >
> > TC: It is scattered all through tc.c, search for "rigid" in the file:
> > https://github.com/LinuxCNC/linuxcnc/blob/master/src/emc/tp/tc.c#L826
> >
> > --
> > atp
> > "A motorcycle is a bicycle with a pandemonium attachment and is
> > designed for the especial use of mechanical geniuses, daredevils and
> > lunatics."
> > ? George Fitch, Atlanta Constitution Newspaper, 1912
> >
> >
> > _______________________________________________
> > Emc-users mailing list
> > [email protected]
> > https://lists.sourceforge.net/lists/listinfo/emc-users
>
>
>
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