Phase-A pin on the hm2 encoder module?
- tnl.lambert
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13 May 2014 03:47 #46847
by tnl.lambert
Phase-A pin on the hm2 encoder module? was created by tnl.lambert
I've posted about encoder-related issues before, but this time it's about an upcoming fix. I want to use the M19 command, but I understand that it will not be available until 2.6 is released. I would like to stay with the stable version (2.5). I've seen topics that discuss the orient.comp module, but it seems that the correct motion pins do not exist in 2.5.
I was thinking about writing my own comp script (or ladder program) that would attach to the phase A pin in order to orient the spindle, but I seem to be using the hm2 encoder module, rather than the standard hal encoder module. I used Pncconf to create my original hal file - is there a way to make the hal encoder work with the 7i76? Do I need a different xml?
I would also be open to using the 'standard' spindle orientation method, if there is one. Thanks in advance.
I was thinking about writing my own comp script (or ladder program) that would attach to the phase A pin in order to orient the spindle, but I seem to be using the hm2 encoder module, rather than the standard hal encoder module. I used Pncconf to create my original hal file - is there a way to make the hal encoder work with the 7i76? Do I need a different xml?
I would also be open to using the 'standard' spindle orientation method, if there is one. Thanks in advance.
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- PCW
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13 May 2014 20:22 #46875
by PCW
Replied by PCW on topic Phase-A pin on the hm2 encoder module?
You can read the state of the 'A' encoder input on the 7I76
if you take a look at the 7i76x2 firmware pinout (5i25_7i76x2.pin)
You can see that Quad-A is located on GPIO 16
GPIO16 is accessible in the HAL file as hm2_5i25.0.gpio.016.in
Not sure why you need the A pin though unless you have a 1 PPR encoder
if you take a look at the 7i76x2 firmware pinout (5i25_7i76x2.pin)
PIN GPIO
11 14 IOPort QCount 0 Quad-IDX (In)
12 15 IOPort QCount 0 Quad-B (In)
13 16 IOPort QCount 0 Quad-A (In)You can see that Quad-A is located on GPIO 16
GPIO16 is accessible in the HAL file as hm2_5i25.0.gpio.016.in
Not sure why you need the A pin though unless you have a 1 PPR encoder
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