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

Mecanix
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07 Aug 2024 23:16 #307230 by Mecanix

Replied by Mecanix on topic LinuxCNC-RIO - RealtimeIO for LinuxCNC based on FPGA (ICE40 / ECP5)

Finally got my Riocore Gui desktop icon working. No more cmd/cli endless keyboard input required. Just double click desktop ico, change stuff, save, generate!!

Change Exec= /to your paths/, save file on your desktop as type "Riocore Gui.desktop"

[Desktop Entry]
Name=Riocore Gui
Comment=Riocore Gui
Exec=bash -i -c "cd ~/rio/riocore; source ~/rio/riocore/bin/activate; PYTHONPATH=. bin/rio-setup riocore/configs/MecanixDev/config-test.json"
Icon=format-indent-less-rtl
Type=Application
Path=
Terminal=false
StartupNotify=false

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Mecanix
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07 Aug 2024 23:28 #307231 by Mecanix

Replied by Mecanix on topic LinuxCNC-RIO - RealtimeIO for LinuxCNC based on FPGA (ICE40 / ECP5)

And yet another post!! Because, well, I can and and and and because it's "LinuxCNC-RIO Week!!!"

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meister
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08 Aug 2024 05:55 #307242 by meister

Replied by meister on topic LinuxCNC-RIO - RealtimeIO for LinuxCNC based on FPGA (ICE40 / ECP5)

Mecanix wrote:

meister wrote:
Also possible with W5500 on Mac level

No Thank You Very Much. Interesting none the less.

What we currently have is STUPID FAST and high performance already. Unless a mysterious someone has a requirement for an hypersonic motion machine-tool, nobody here (in our star system anyway) will be able to ceiling the perf of RIO as-is on any parts/processes level.

Not sure what you did but after updating the git today I'm clocking this x2 speed of what it was a few days ago. Used to be 2.5ms, now down to little more than a millisecond. Impressive stuff, Olivier.

160890 == 0.16ms
all over 1ms would be to slow because we have 1Khz servo-thread

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meister
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08 Aug 2024 16:25 #307266 by meister

Replied by meister on topic LinuxCNC-RIO - RealtimeIO for LinuxCNC based on FPGA (ICE40 / ECP5)

sooo, small WARNING, I have now tidied up the boards and configs.
renamed a lot of things and removed all my test files.
if you are missing something, please let me know, i still have everything

i will shortly merge the dev branch into the main and then also remove the riogui repository (everything is in the riocore)

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cornholio
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09 Aug 2024 06:38 #307292 by cornholio

Replied by cornholio on topic LinuxCNC-RIO - RealtimeIO for LinuxCNC based on FPGA (ICE40 / ECP5)

Sweet will wait for more info.
@Mecanix what's the contents of this file

~/rio/riocore/bin/activate

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Mecanix
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09 Aug 2024 06:39 - 09 Aug 2024 06:44 #307293 by Mecanix

Replied by Mecanix on topic LinuxCNC-RIO - RealtimeIO for LinuxCNC based on FPGA (ICE40 / ECP5)

@meister

Only when you have time (no rush), I'll need your help with a spindle encoder config. I can make the counter work (A & B signals), however I can't figure out how to make the Z index work. I've attached my config for reference, grateful if you could have a look at it and let me know what I'm doing wrong, or what I'm not doing rather.

ps. only guidance I found was in this thread, from old posts. Although all that info seems to have changed since

And so I've tried everything before begging for your help!

@cornholio
I have no idea. It's a cmd from python-venv (to activate the virtual environment that Rio is isolated into).

Last edit: 09 Aug 2024 06:44 by Mecanix.

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meister
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09 Aug 2024 06:56 #307294 by meister

Replied by meister on topic LinuxCNC-RIO - RealtimeIO for LinuxCNC based on FPGA (ICE40 / ECP5)

if you want to use the spindle in linuxcnc, the correct hal connections must be entered 'net':

        {
            "type": "quadencoderz",
            "name": "spindle_encoder",
            "pins": {
                "a": {
                    "pin": "25",
                    "pull": "up"
                },
                "b": {
                    "pin": "26",
                    "pull": "up"
                },
                "z": {
                    "pin": "27",
                    "pull": "up"
                }
            },
            "signals": {
                "indexenable": {
                    "net": "spindle.0.index-enable",
                    "display": {
                        "type": "none"
                    }
                },
                "position": {
                    "net": "spindle.0.revs",
                    "scale": 600,
                    "display": {
                        "title": "REV"
                    }
                },
                "rps": {
                    "net": "spindle.0.speed-in",
                    "display": {
                        "type": "none"
                    }
                }
            }
        }

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Mecanix
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09 Aug 2024 07:14 - 09 Aug 2024 07:18 #307295 by Mecanix

Replied by Mecanix on topic LinuxCNC-RIO - RealtimeIO for LinuxCNC based on FPGA (ICE40 / ECP5)

meister wrote:
if you want to use the spindle in linuxcnc, the correct hal connections must be entered 'net':

Nice, thanks! Progress ha. But still not getting any index input for some strange reason. The encoder pin pulses HIGH on the oscope on each rev (probed on the FPGA pin), that works fine, but it never shows up in Lcnc. Do I need to debug this from rio.c (hal component?)

Last edit: 09 Aug 2024 07:18 by Mecanix.

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Mecanix
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09 Aug 2024 07:33 #307297 by Mecanix

Replied by Mecanix on topic LinuxCNC-RIO - RealtimeIO for LinuxCNC based on FPGA (ICE40 / ECP5)

Wait wait, it see the index pin. I know because if I set the xxx.indexenable to true it trips on a rotation and reset the counter.
Omg, the learning curve is steep, Olivier. Let me try to figure out how this works... prolly going to take me a day or two lool

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meister
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09 Aug 2024 07:37 #307298 by meister

Replied by meister on topic LinuxCNC-RIO - RealtimeIO for LinuxCNC based on FPGA (ICE40 / ECP5)

you can try
PYTHONPATH=. bin/rio-test riocore/configs/MecanixDev/config.json

-> Quadencoderz and set indexenable, then rotate the axis and look if the indexout changed

same you can do in linuxcnc -> Halshow

set rio.spindle_encoder.indexenable to 1 and look at the rio.spindle_encoder.indexout
while rotating

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

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