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

Hey, great work!

I got my Tang Nano 9k with a W5500 and some TXS0108E Logic Level Shifter Bi-Directional Module for the I/O.

For whatever reason my first W5500 smoked...

Some Question:
Wiring of the W5500, I can't really find a lot support online.
Do all ground lines need to be connected?
Same question for the 3.3V lines?
How much mA can the 3.3V and 5V line of the Tang support?

Last question is CS the same as SEL in LinuxCNC Rio?

@gitano
QSlider is fixed, but have other problems with the qt gui's,
better using axis at the moment.

@mBender
you need only connect one of the 5V/GND lines, and it's better to use only the 5V not the 3.3V input

CS = Chip-Select
SEL = Select
it's the same

Well, I don't have 5V on my W5500. This is the only schematic I found online.

Ok, so do I have the wrong W5500? I was planning to use it like in the attached picture.

EDIT Nov. 3 2024. THERE IS A WIRING ERROR IN THE PICTURE BELOW. THE OE LINE NEEDS TO BE CONNECTED TO 3.3V OR AN OUTPUT. WILL CORRECT THE DRAWING AND UPLOAD AGAIN ONCE TESTED.
This one is actually how I want to connect the joints. I have a total of 4 joints (dual Y axis motor), but only draw joint 1 and 2 for the moment.

 

EDIT Nov. 3 2024. THERE IS A WIRING ERROR IN THE PICTURE BELOW. THE OE LINE NEEDS TO BE CONNECTED TO 3.3V OR AN OUTPUT. WILL CORRECT THE DRAWING AND UPLOAD AGAIN ONCE TESTED.
This would be the schematics for Raspbery PI and SPI. In all examples, the Tang is powered by the USB C cable.  

was my mistake, the mini W5500 only have 3v3.
i can't tell you exactly how much the tang can take, but so far it has always been enough in all constellations without anything getting warm.

RST and INT signals are not needed

little install script fir riocore on debian-12 systems:

github.com/multigcs/riocore/blob/dev/rio...files/rio-install.sh

Awesome, do RST and INT bring any benefits ? I saw they were marked as optional.

Could you integrate a tooltip on the GUI? That way I could add some more text and documentation. Really phenomenal. New W5500 arrived yesterday, hope I get around testing them soon.