configuring my GPIO pins to linuxcnc with Raspberry pi 4

Hi everyone, I'm fairly new to this. You can say I am a noob in Linux.

We want to build a CNC machine for testing stuff. I'll be using nema 23 and 17 motors connected to TB6600 motor drivers as well as limit switches and other components down the line. This will all be connected to a raspberry pi 4 and we want to use the linuxcnc to control the motors and send gcode onto them.

I wanted to know if I would I go about the configurations on my Raspberry pi4 and the components so that the software can recognize these and give them control. i searched that i need to configure or map the GPIO pins in the HAL? any responses would be greatly appreciated. Thanks!

There is a dedicated GPIO driver available in 2.91 linuxcnc.org/docs/devel/html/drivers/hal_pi_gpio.html
The final (I hope) Raspberry Pi image for 2.91 is sitting in my google drive pending release since the weekend just gone:
drive.google.com/file/d/1IhrrdGRNvsdclVi...nUu/view?usp=sharing
Give it a go.

Is it possible to provide a tutorial for configuring the Raspberry Pi using GPIO with LinuxCNC?

Rod,

Also a newby here - trying to run LinuxCNC on a Raspberry pi4 and use the GPIO but getting an error that we don't have hal_pi_gpio module. Where do we find this? I've seen reference to this being part of Machinekit. Do we need to replace our existing LinuxCNC install with Machinekit or can we simply install the necessary hal_pi_gpio modules to get the GPIO running with our Pi4?

You need this linuxcnc.org/docs/stable/html/drivers/hal_gpio.html

i just install rpi4 linuxcnc image to my rpi4 but step conf wisard not have gpio pins can config, how make this, i looking today pnc config but has only mesa card config, no working if need only gpio pins output to stepper driver board DM556. i use gpio pns and shift level converter 3.3V to 5V convert and then 5V can use output to stepper driver, but how config all gpio pins what i need use. step conf wisard not can, pnc config wisard no can its only mesa card conf. how peoples has made rpi gpio run drivers and inputs.

rpi4 boot ok linuxcnc 2.9.x whit my HDMI display but not old VGA display say only out off range 1. rpi used mini HDMI to vga cable and working good normal image raspian, but not whit linuxcnc image .

what this is, not understand lot say hal need write code but not understand anything what code need write, not easy help, lot has only english plaa plaa plaa but no say how use gpio pins linuxcnc rpi4 stepper drivers pins step and dir and enable, paraller port has simple easy but why not rpi4 have same system can add pins and step/dir, number. etc, pin 17 is x axis step, pin 13 is x axis dir, were this is, or not have why not.