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I have been taking a look at panelui, however I can not finde any simple an clear example of how to set up a simple demo to get going is there such a thing like an easy to follow example?

I also have hard time to find information  wether the panelui can work in conjuction with a ui like QtDragon or not?

Kind regards/Stefan

I would have brought the JTAG signals out for initial programming of the FPGA and not shared the serial flash signals.
May sound cumbersome but programming only needs to be done once via JTAG, after that mesa flash does the job fine.
I've thought along the lines of Andy that it would be an interesting project.
From my 7c81 clone experience I think there is the possibility of being able to bring out an extra 17 pin port, for a total of 68 io. Tho this would require firmware changes, new custom board name and and such. Also I made some changes to mesa flash and the driver to suit.
One thing I have noted with the RPi5 is that it's more forgiving in relation the SPI cable length and "messiness", IE it will tolerate longer DuPont cables that an RPi4 would. I thought I would just mention this.
Apart from not having the skill to design a board to suit, nor anyone to help during the process is that I like having the boards seperate, just in case my butter fingers cause one the voltage translation chips to blow a smoke valve and damage the PCB. Honestly this is likely to be a rare event.
On the whole good luck and keep us informed. If you have any questions regarding the Linuxcnc image I'm happy to help.

Thank you for your reply. I have read it. My question is whether this encoder is BiSS and uses a standard protocol that can be decoded by LCNC, because I understand that some of these types of encoders use their own protocol.

Please try this configuration to orient with servo step/dir, it works for me.

i have nothing working as yet, the ratio is 1:1

this is what i have tried.
# Spindle Orient Command from LinuxCNC to the driver
net spindle-orient motion.spindle-orient => hm2_7i95.0.ssr.00.out-05

# Spindle Orient Complete feedback from the spindle driver
net spindle-orient-done hm2_7i95.0.inmux.00.input-06 => motion.spindle-orient.is-oriented

just to clarify my spindle driver has inputs and outputs for orient start and orient completed

I have tried searching but cannot seem to find what I'm  looking for. I am getting ready to convert my little 9x20 lathe to CNC and am trying to find out if lathe threading can be done with a single index pulse only.  Basically I would make an index plat with only one hole in it and use an optical sensor for the trigger. Is this possible in LinuxCNC, and could anyone point me to an example?

Thanks,
John Brannen

I don't see any analog-out pin linked in the HAL to pass the M68 E0 to carousel.0.pocket-number.
I suspect that nothing is driving pocket-number and so it always goes to zero.

One option might be to create complementary pins in your userspace module and link them in the HAL layer.

Can you give more details about what you are trying to do? There are a few examples of existing drivers with realtime and userspace pairs. These tend to communicate with private shared memory.

linuxcnc.org/docs/stable/html/man/man1/halsampler.1.html
linuxcnc.org/docs/stable/html/man/man9/sampler.9.html
For example.

Are there any updates on this? I am facing the same problem using Lcnc 2.9.4 and Gmoccapy 3.4.9. My touchscreen is recognized as eGalaxTouch. In Axis GUI and Gmoccapy with USB Mouse it works flawless. 

Does orienting the spindle motor work to orient the spindle? (If it's not an exact 1:1 drive ratio then it won't)

What does the motor orient to? Is there a programmable alignment offset?

You say you are running out of IO. Is this because you are using a parallel port?

I can't advise on your PCB design, but I think this looks like a nice idea.

I have occasionally thought that there should be a niche for a similar board, but with on-board stepper drivers (Trinamic or some other serially-controlled driver)
That would, of course, need a dedicated HAL driver, but those can be surprisingly straightforward.

Python can find the path to the running code with the __file__ system variable.
Depending on the code in question you might want to use sys.argv[0] instead.
In both cases you probably need to use the Python path manipulation functions to assemble the required path.

Hello,
I made a custom version of the MESA Electronics 7c81 FPGA Card that I thought some of you might find interesting. 
I've attached images of the progress I've made so far. 





I haven't ordered the PCB yet, as I wanted to ask first, if any of you guys on here can find anything wrong with it. As I'm a student with limit budget I'd like to be a little more reassured that I'm not missing anything.
I used the  7c81 Schematics  found in this forum post and the schematics of the official  RPi CM5 IO-Board  to create my own schematics.





I have a few questions I haven't found a good answer for and I'd be happy to recieve constructive criticism on any part of the design.

• The SPI0 Bus of the RPi (SDA0, SCL0) is shared by the Serial Flash for the FPGA and one of the MIPI DSI/CSI-2 FPC connectors. Will this cause conflicts?
• I wasn't able to avoid routing traces under the FPGA, will this be likely to cause problems or will I be able to get away with it?
• Is it a good idea to ground pour the top and bottom signal layers of the 4 layer stackup, if I'm already using the two inner layers as ground planes?

Thank you in advance!
Niklas
 

This may be a setting about climb and conventional milling. Is there a "both" checkbox? (There is in Fusion)