LinuxCNC + Mpg help please

[lolos]

Hi I am retrofit denford orac to linuxcnc/mach3. I have got mach3 fully working but I cannot handle linuxcnc. I am trying to add mpg into but I have some strange issue with it.
I have wrote the code and place it into custom.hal. Seems like mpg works but only one direction doesn't matter with way I am turning (If I am using arrows work great). I have windows xp with mach3 installed on another partition and the same mpg works great too. Can any one have a look in my code is there anything wrong with it
My code:
"
loadrt select8 count=1
loadrt updown count=1
addf select8.0 servo-thread
addf updown.0 servo-thread
net encA encoder.1.phase-A <= parport.1.pin-12-in
net encB encoder.1.phase-B <= parport.1.pin-11-in
net enc-counts encoder.1.counts => axis.0.jog-counts axis.1.jog-counts
net jog-button updown.0.countup <= parport.0.pin-15-in
net jog-choice updown.0.count => select8.0.sel
net jogX axis.0.jog-enable <= select8.0.out0
net jogY axis.1.jog-enable <= select8.0.out1
setp encoder.1.counter-mode 1
setp updown.0.max 1
setp updown.0.min 0
setp updown.0.wrap 1
setp axis.0.jog-scale 0.1
setp axis.1.jog-scale 0.1
"



Similar Threads:

• Problem- LinuxCNC 2.7.3 G0 Z0
• LinuxCNC 2.7.1
• LinuxCNC?
• Need Help!- Linuxcnc 2.5.2 won't run
• LinuxCNC right for me?

[PCW_MESA]

Hi I am retrofit denford orac to linuxcnc/mach3. I have got mach3 fully working but I cannot handle linuxcnc. I am trying to add mpg into but I have some strange issue with it.
I have wrote the code and place it into custom.hal. Seems like mpg works but only one direction doesn't matter with way I am turning (If I am using arrows work great). I have windows xp with mach3 installed on another partition and the same mpg works great too. Can any one have a look in my code is there anything wrong with it
My code:
"
loadrt select8 count=1
loadrt updown count=1
addf select8.0 servo-thread
addf updown.0 servo-thread
net encA encoder.1.phase-A <= parport.1.pin-12-in
net encB encoder.1.phase-B <= parport.1.pin-11-in
net enc-counts encoder.1.counts => axis.0.jog-counts axis.1.jog-counts
net jog-button updown.0.countup <= parport.0.pin-15-in
net jog-choice updown.0.count => select8.0.sel
net jogX axis.0.jog-enable <= select8.0.out0
net jogY axis.1.jog-enable <= select8.0.out1
setp encoder.1.counter-mode 1
setp updown.0.max 1
setp updown.0.min 0
setp updown.0.wrap 1
setp axis.0.jog-scale 0.1
setp axis.1.jog-scale 0.1
"

You have the encoder mode set wrong:

setp encoder.1.counter-mode 1

This should be

setp encoder.1.counter-mode 0
or better
setp encoder.1.counter-mode false

From the encoder component manual page:

PINS
encoder.N.counter-mode bit i/o
Enables counter mode. When true, the counter counts each rising
edge of the phase-A input, ignoring the value on phase-B. This
is useful for counting the output of a single channel (non-quadrature)
sensor. When false (the default), it counts in quadrature mode.

[lolos]

Great You are a star thanks - works!!!! I have to play with ilowpass now.
I have got one more question
- Can I use 2 different mpg's for X and Z
cheers

[PCW_MESA]

Great You are a star thanks - works!!!! I have to play with ilowpass now.
I have got one more question
- Can I use 2 different mpg's for X and Z
cheers

Sure, you would need to add another encoder instance (and 2 free input pins for the second MPG encoder)
Since the jog keys still need the per axis selection but the MPGs do not, you would need to change the per axis
jog enable logic to allow simultaneous X/Z jogging via the MPGs

[lolos]

If I go for it ...is that code correct then?
"
net encA encoder.1.phase-A <= parport.1.pin-12-in
net encB encoder.1.phase-B <= parport.1.pin-11-in
net enc-counts encoder.1.counts => axis.0.jog-counts

net encA encoder.2.phase-A <= parport.1.pin-13-in
net encB encoder.2.phase-B <= parport.1.pin-15-in
net enc-counts encoder.2.counts => axis.1.jog-counts

net jogX axis.0.jog-enable
net jogY axis.1.jog-enable

setp encoder.1.counter-mode 0

setp axis.0.jog-scale 0.1
setp axis.1.jog-scale 0.1
"

[lolos]

doesn't work