On the side: this was my first experiment with hal. Allow me to congratulate the developers of emc. Nice job and we came a long way from the early days with all the hassle to install. :-) Thanks again.
Would using stepgen be a solution instead of using siggen and scale? The square wave would then be outputted in the base thread and be as such nicer looking. I also assume it would be simpler. With siggen: loadrt siggen loadrt scale loadrt conv_float_u32 loadrt conv_u32_bit addf conv-float-u32.0 servo-thread addf conv-u32-bit.0 servo-thread setp scale.0.in 0.0 setp scale.0.gain 0.15 setp scale.0.offset 0.0 addf scale.0 servo-thread setp siggen.0.offset 0.5 setp siggen.0.amplitude 0.5 addf siggen.0.update servo-thread net spindle-cmd <= motion.spindle-speed-out => scale.0.in net spindle-freq <= scale.0.out => siggen.0.frequency net spindle-fl2int <= siggen.0.square => conv-float-u32.0.in net spindle-int2bit <= conv-float-u32.0.out => conv-u32-bit.0.in net spindle-out <= conv-u32-bit.0.out net spindle-out => parport.0.pin-14-out Geert De Pecker wrote: > Kirk, > > You pointed me in the right direction. With siggen and scale, I was able > to produce a frequency from the spindle control. I posted the mill.ini and > mill.hal on http://users.skynet.be/gedp/FILES/index.html. > > The signal isn't very stable because I had to put it in the servo-thread > (probably needed because of the floating point) and the original 1msec > period of this on 400Hz is on the low side. > > Next problem: the analog voltage on the C11 board doesn't go to the max > input voltage. I measured the voltage across the sherline potentiometer > and it is 9.2 volts. With the bench supply set to 9.2 and attached to > the analog voltage of the board, the max output is 8.2 volts. I'll see > what is gives when I try ot on the sherline speed control. > > Otherwise, the output voltage is very linear with the ordered spindle speed. > > Thanks again for pointing this out, > > Geert > > ------------------------------------------------------------------------- > This SF.net email is sponsored by: Microsoft > Defy all challenges. Microsoft(R) Visual Studio 2005. > http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
