Starting over
20 Sep 2016 19:08 - 20 Sep 2016 19:10 #80685
by andypugh
Probably parallel port and G540.
And that might be the way to go. Set up for a G540 with stepconf and the parallel port. Then swap the parallel port for the 5i25 when you feel more comfortable with the rest of the system.
You don't have a 4-axis machine, you have a 3-axis machine. You can just connect X-step and X-dir to two pins each on the parport in stepconf.
Eventually I would suggest installing the 5i25 and upgrading LinuxCNC to 2.8 where support for systems with more than one motor per axis are significantly better supported.
Or, just hammer the forum with questions, it helps us feel useful
Replied by andypugh on topic Starting over
Which config is the most robust and best supported within the group? What hardware does it expect to interface too?
Probably parallel port and G540.
And that might be the way to go. Set up for a G540 with stepconf and the parallel port. Then swap the parallel port for the 5i25 when you feel more comfortable with the rest of the system.
You don't have a 4-axis machine, you have a 3-axis machine. You can just connect X-step and X-dir to two pins each on the parport in stepconf.
Eventually I would suggest installing the 5i25 and upgrading LinuxCNC to 2.8 where support for systems with more than one motor per axis are significantly better supported.
Or, just hammer the forum with questions, it helps us feel useful
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21 Sep 2016 21:52 #80749
by andypugh
Because the pin allocation is set in firmware, and not HAL, it turns out that the HAL code is almost (and sometimes exactly) the same even if the firmware and physical pins change. So you can use the settings for a probotix breakout as long as your actual firmware is G540.
So, in PNCConf choose the 5i25 internal data and prob_rfx2 option (which is a simple dumb breakout). and choose "accept component changes"
Then configure connector 3. (which is the DB25 connector on the 5i25) and you will see "unused stepgens" numbered 0, 1, 2 and 3. Choose axes for these to suit how you want to wire the G540, for example 0 = X, 1 = tandem X, 2 = Y, 3 = Z.
I think that GPIO 000 is charge pump on the G540? If so then choose GPIO 000 as control-> charge-pump
This setup should be really very close:
Replied by andypugh on topic Starting over
Not in a while. I recall it wanted an 5i25 with another mesa card. G540 was not an option.
Because the pin allocation is set in firmware, and not HAL, it turns out that the HAL code is almost (and sometimes exactly) the same even if the firmware and physical pins change. So you can use the settings for a probotix breakout as long as your actual firmware is G540.
So, in PNCConf choose the 5i25 internal data and prob_rfx2 option (which is a simple dumb breakout). and choose "accept component changes"
Then configure connector 3. (which is the DB25 connector on the 5i25) and you will see "unused stepgens" numbered 0, 1, 2 and 3. Choose axes for these to suit how you want to wire the G540, for example 0 = X, 1 = tandem X, 2 = Y, 3 = Z.
I think that GPIO 000 is charge pump on the G540? If so then choose GPIO 000 as control-> charge-pump
This setup should be really very close:
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