>From example posted by Charles ( https://github.com/cdsteinkuehler/machine-configs/blob/master/motorctrl/hardware.hal), I see:
# 9/25 strobe - not connected # 9/27 B in - Hall sensor pin A - white # 9/41 index - not connected # 9/42 A in - Hall sensor pin B - yellow Does this means encoder expects wires on those pins and I cannot change that anyhow? I wonder if they are available on Cramps hat? in Cramps schematics: 925 = LED 927 = FET3 941 = AIN0 942 = SPI_CS1 I planned to use: CRAMPS_P503_2 MISO P929 ... for thc voltage from mesa thc 10v - needs to go to hal_arm335xQEP encoder CRAMPS_P503_4 SCK P931 ... plasma start CRAMPS_P503_6 MOSI P930 ... transfer start CNC machine motion So can I wire somehow this P929 to encoder? And also I obviously have only one channel A from MESA THC10V, instead A,B as in Charles sample. Dne četrtek, 27. oktober 2016 12.24.08 UTC+2 je oseba Klemen Zhivko napisala: > > It would be nice and maybe somebody already have thc configuration so I > could reduce number of trial/error iterations. > Does anybody know for working thc comp with linuxcnc/machinekit and > possibly on BBB so I could check configuration? > > I am looking into THC comp (*machinekit\src\hal\i_components\thc.icomp*) > > I see there are few parameters available to influence THC comp operation - > namely: > // Parameters > pin io float *vel_scale *"The scale to convert the Velocity signal to > Volts"; > pin io float *scale_offset *"The offset of the velocity input at 0 volts"; > pin io float *velocity_tol *"The deviation percent from planned velocity"; > pin io float *voltage_tol *"The deviation of Tip Voltage before > correction takes place"; > pin io float *correction_vel *"The amount of change in user units per > period to move Z to correct"; > > So I plan to instantiate thc comp within my hal with: > newinst thc thc0 vel_scale=0.00037866834 scale_offset=119000 > velocity_tol=3 voltage_tol=2 correction_vel=0.0001 > But what would be the values of those parameters? > > Also for using thcad 10V I would need encoder and it seems I would need to > use: > http://www.machinekit.io/docs/drivers/hal_arm335xQEP/ > so: > loadrt hal_arm335xQEP encoders=eQEP0 > > but where do i specify what are source pins that encoder is counting them > in component? > I was already checking: > > https://github.com/cdsteinkuehler/machine-configs/blob/master/motorctrl/hardware.hal > > -- website: http://www.machinekit.io blog: http://blog.machinekit.io github: https://github.com/machinekit --- You received this message because you are subscribed to the Google Groups "Machinekit" group. To unsubscribe from this group and stop receiving emails from it, send an email to machinekit+unsubscr...@googlegroups.com. Visit this group at https://groups.google.com/group/machinekit. For more options, visit https://groups.google.com/d/optout.
