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I use a momentary switch and will insert a 4.7 k ohm resistor. Thanks for your help!

You would need to add an external resistor from 3.3V to each input (0 through 7)
connected to a switch, assuming the switch switches to ground (a 4.7K resistor is a reasonable value)

If the switch/button has NO and NC contacts you can do without the resistor, but a normal
SPST switch needs the resistors.

All of the wiring is correct.

I noticed that the led indicator turns on when i power on the machine but when i start the program it turns off. I try to unplug power to the driver while the machines is on and replace it and that turns the led back on. Seems like a faulty driver yeah?

@Coyote no I didn't have any role here. This is all Grotius' genius on display. I got buried under school responsibilities and managing now two businesses so I haven't been too active in machining over the last year

@ihavenofish this is beyond dad joke into grandpa joke territory

@Grotius I have tested the scurve on my machine for motion (although I haven't tested probing/toolsetting/cutting). I somehow managed to destroy a spindle bearing a while back and turn it into a spindle bushing, and I just got a new spindle earlier this week - I should have time to install the  VFD into the electronics cabinet next week and set up the new spindle, and will send some videos of cutting differences once that's done.

Actually the A/B inputs are inverted (which is what you want for an active low home switch input)
But the index input is not inverted.

options:

1. If you have more spare encoder inputs, just use A,B

2. Add 1 or  more  "not" components to invert the polarity of the input-index pin


 

Hi.
So, I tested the scurve with my loop machine for over 18 hourse. No crashes. And I really try to torture it with extreme values. I would call it a sucess and really good coding by Grotius. Well done.

I will go on and do some tests and thinking of backlash compensation this weekend. Have some thoughts but have to figure it out first.

I've tried a bunch of more things. 

I noticed it could possibly be a wiring issue but that just flipped the directions so you'll notice that the scale now has a different sign. I thought maybe i was getting confused by the min/max and it largely operating in the negative domain so I just changed it to operate from 0 ->4 and the max is 4.

I also messed around with the 'home offset' alot. trying 0, 0.1, -0.1, 3.9, -3.9 and no dice, so its now at 0.The last thing i changed was 'home' in the section above as a last ditch effort. I changed it to 4. The logic is when it hits the switch it considers max that it should do its final approach thing, back off then consider that home and set the DRO to 4. This isn't what happens.

 I noticed that when Z is homing, as soon as it hits the switch the DRO changes to zero and not 4. This is the opposite of what we'd expect but clear I've fat fingered something. Attached is the latest .hal and .ini . 

side note: these motors give a lot of vibration and noise at slow speeds but it seems really nice and smooth at higher speeds (over 28 in/min) I'm not homing at these speeds but i don't know if this is just resonance and rattling as i still haven't anchored the machine yet or maybe settings i could look into. 

Aha, no they weren't.
But they are now.
Can now toggle them all to change state, but oddly y-min is inverted, and cannot quite see what I have done wrong there.

Thanks again.

sorry but I'm not very expert, what do you mean by added externally? Can you explain it to me practically? Thank you

Hi KrisJ,

I can at least confirm a pi 5 that is able to find WiFi networks. In my case nmtui did work I chose something I remember was called ‘activate network’ and it would show a bunch (and prompt for password).

With kind regards,
Jairo 

edit: this is on the latest linuxcnc image 2.9.4 by rodw 

Are the encoder inputs for the limit switches jumpered for single ended use?

Inputs 0..7 on the 7I73 have no pullups/pulldowns
so these must be added externally if used with
single throw switches.

OK, So I think I managed to configure some GPIOs (more or less) successfully using official Rpi5 img, (Thanks for the guidance, unkonwn)

Now my problem is that I can't manage to get the WiFi working and I sorely need it for development. I'm pretty sure I ran some older release that had it working (with network-manager) out of the box but network-manager does not seem to be installed by default in this version.

What I tried is apt-get install network-manager and after that I reboot and launch the terminal based GUI with 'nmtui'. In here (in previous versions) I used to see a list of SSIDs to connect to but now the list is empty. I'm guessing that there might be an issue with some driver or similar and that no WiFi chip is recognized but I don't have the knowledge to check. Has anyone else got their WiFi up and running on the latest Rpi5 image?

The 5v limits switches, (connected to the 7i77 spare encoder terminals QA3,QB3,IDX3 etc), are registering in linuxcnc randomly. Even though the machine is parked mid stroke, the Y axis min is always true, and I can trigger the X max with a wrench from false to true, but it stays that way with the wrench removed.
Looking at the original control there is a 470ohm resistor to 5v holding the signal to the MUX chip high, and when the limit is triggered, this gets grounded.
Do I need to do something else electrically to gets this working?
Thanks