Mesa 7i92M Support

Your system makes perfect sense. It allows for the LinuxCNC to grow and improve in ways un-imagined, and it has. I started using LinuxCNC at V2.4. It took me about a wee to iron out the bugs to get the G540 working accurately. LinuxCNC itself has grown in complexity greatly since then and most of the people have grown with it but I have not. I haven't a background in electronics and my programming days ended with VACS and UNIX. Since the I have merely designed manufacturing, estimating and costing software. The coding was left to someone else. Mechanically I am not intimidated by it.

LinuxCNC currently on the verge of becoming capable to replacing complex motion control systems and the hardware is getting there as well. There many used industrial machines out there and people are looking for affordable ways to replace old control systems. I am sure, I am not alone when it comes to ad-in hardware many people believe it should be simple to install it and make it work and for the most part that is the general conception in the real word. Also this being open-source everything relies on a relatively small group of people working part-time to do their best to help the masses and to keep the software free. Those people and the individuals that are run the forum are exceptional individuals in this day and age.

My short term goal is to get a simple machine working and understand why it works. My long term goal is to learn enough to convert an industrial machine to LinuxCNC as long as the software and hardware is there to support it. That will take me a few years. It is great when you can e your own tech support. Currently, I am between a rock and a hard place to get this machine going, so I will persevere until I become too far behind the workload.

I will try it again. I probably didn't wait long enough.

Good news the charge pump came on. It took 45 minutes. Is there a way we can cycle up quicker? What actually controls the cycle time?

I just tested tommylight's hal file and here a a few suggested changes:

# --- CHARGE-PUMP ---
#setp hm2_7i92.0.gpio.019.is_output true
#net charge-pump hm2_7i92.0.gpio.005.out

setp hm2_7i92.0.stepgen.04.steplen 50000
setp hm2_7i92.0.stepgen.04.stepspace 500 ( missing, default is not good, 10 KHz not reachable)
setp hm2_7i92.0.stepgen.04.position-scale 1
setp hm2_7i92.0.stepgen.04.step_type 0
setp hm2_7i92.0.stepgen.04.control-type 1
setp hm2_7i92.0.stepgen.04.velocity-cmd 10000
setp hm2_7i92.0.stepgen.04.maxaccel 0 (missing, again the default is 1 which not good)
setp hm2_7i92.0.stepgen.04.maxvel 11000 (missing)

net machine-is-enabled => hm2_7i92.0.stepgen.04.enable

This will give you a good 10 KHz squareware chargepump signal as soon as machine-is-enabled is true

Yeah the default stepgen maxaccel is 1
Which means the frequency starts at 0 and increases 1 Hz per second

A maxaccel of 0 means don't limit acceleration

Does the board look at the charge similar to a stepper motor? Thanks, I made the changes but after 15 minutes the charge pump remained off.

I dont know how the G540 chargepump works but with the changes, the
chargepump starts instantly as soon as LinuxCNC
is put into the machine-on state

Can you post the current hal file?