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  • meister
  • meister
29 Jul 2025 06:01
Replied by meister on topic LinuxCNC-RIO - RealtimeIO for LinuxCNC based on FPGA (ICE40 / ECP5)

LinuxCNC-RIO - RealtimeIO for LinuxCNC based on FPGA (ICE40 / ECP5)

Category: Computers and Hardware

@Russell should work, but modbus is very very slow, so not usable for things like servo motors.

@mBender:

you can overwrite all ini parameters in the json config and also add MDI commands:
    "linuxcnc": {
        "gui": "axis",
        "ini": {
            "HALUI": {
                "MDI_COMMAND|Go To Zero": "G0 X0 Y0",
                "MDI_COMMAND||Gripper|0": "M68 E0 Q-100",
                "MDI_COMMAND||Gripper|25": "M68 E0 Q-75",
                "MDI_COMMAND||Gripper|50": "M68 E0 Q0",
                "MDI_COMMAND||Gripper|75": "M68 E0 Q75",
                "MDI_COMMAND||Gripper|100": "M68 E0 Q100"
            },
            "DISPLAY": {
                "MAX_LINEAR_VELOCITY": 60.0,
                "MAX_ANGULAR_VELOCITY": 60.0
            }
        },

you can also add your own .hal file to postgui_call_list.hal (this entry will not be overwritten)

# cat Output/TangNano9K/LinuxCNC/postgui_call_list.hal
source custom_postgui.hal
source my-own.hal


about the laptop/PC, try to reinstall the rio.c component:
sudo halcompile --install riocore/files/rio.c
  • Gautham
  • Gautham
29 Jul 2025 05:57 - 29 Jul 2025 06:01
Replied by Gautham on topic Connecting my 7i96s to the VFD

Connecting my 7i96s to the VFD

Category: Driver Boards

Thank you so much PCW and tommy
PCW would that mean I don't connect 22 - SPINDLE- to COM, instead connect OUT4B --> COM and OUT5B --> COM?
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