so after years of fighting with computers and parallel ports I have decided to get myself a Mesa 7i96.
I have setup a Raspberry pi 4 with debian 10 and linuxcnc 2.8, but the 7i96 config tool doesn't seem to run under debian 10 I think based on one of John's message in the 7i96 configuration tool thread. I followed John's instructions for installing it but I can't get it to work.
So I have started down the road of creating my own hal and ini files from the 7i90 examples. I seem to have the three stepper motors config working but now I need to get my spindle going.
I'm not quite sure how to port my old spindle configuration over to the new hal and ini format.
I am using a frequency to isolated analog output board to control my spindle controller. In my old config I used a stepgen to control the frequency which would in turn drive and relate to spindle RPM.
I'm not really sure in the new ini and hal configs how to port this over to the new format and to work with the 7i96.
I have a ctrl_type set to velocity.......at the end and p for position control.
how do I define my spindle in the ini and in the hal for this velocity control.......yet using the stepgen for frequency generation?
below is part of my old hal file
Code:
loadrt stepgen step_type=0,0,0,0 ctrl_type=p,p,p,v
Code:
#**********************************************************
# Spindle Control
# Use a scale module for offset and scaling of the stepgen
# Offset and scale are determined by first calculating and testing
#
loadrt scale count=1
setp scale.0.in 0
setp scale.0.gain 1.5
setp scale.0.offset 0
addf scale.0 servo-thread
# Connect spindle speed to scaler
#
net spindle-cmd spindle.0.speed-out => scale.0.in #
# Connect scaler output to stepgen velocity
#
net spindle-freq <= scale.0.out => stepgen.3.velocity-cmd #
#
# Initialise the stepgen for the spindle
#
setp stepgen.3.position-scale 1
setp stepgen.3.maxvel 2500
setp stepgen.3.steplen 1
setp stepgen.3.stepspace 0
setp stepgen.3.dirhold 20000
setp stepgen.3.dirsetup 20000
setp stepgen.3.maxaccel 400
#
# Enable
#
#setp parport.0.pin-17-out-invert 1
#net spindle-enable <= spindle.0.on => stepgen.3.enable parport.0.pin-17-out
