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

Hi all, thanks for the help trying to solve my compile issues, in the end I used the docker method, definitely recommend this for people like myself, not too bright but can lift heavy things

So I've found something interesting, I have configured a machine, done bench testing, everything seems good.
Only issue is the estop, it seems to only trigger on the transition from input high to input low. My estop is wired how I would say is standard, normally closed contact, if the wire is cut then estop will trigger.  I also tried the reverse situation, so high input is estop condition, but it will allow me to start the machine in an estop condition, until I clear the estop then activate it again. I probably haven't explained this well but the machine shouldn't startup with a hardware estop active. Actually now I think about it setting up a hardware estop when I was using a MESA card disabled the software estop button and relied on hardware estop, only the software enable button worked. Has anyone else encountered this ?

Create a bitout plugin, name it estop, add a pin number, and turn the onerror modifier on for that pin. This pin will control your additional safety relay, whose N.O. contact will be in series with the machine's safety line.
In rio.hal, add the following line: If everything is configured correctly, bord is energized and LinuxCNC started, relay should remain OFF until you unlatch estop.
The machine shuld only be able to turn on while LinuxCNC is running and communication between the board and LinuxCNC is functional.

Hello, I'm new to LinuxCNC and found your awsome project.
I'm retrofitting an old Deckel FP3 CNC which already has Haidenhain glass scales. Since their already there I wanted to use them of course. For drives I'm using EtherCAT ones, but the Sine/Cosine Encoder interfaces from Beckhoff are very expensive.
So I would like to interpolate the sine/cosine signals of the scales to incremental quad encoders with some custom electronics. I've seen, that there are plugins for quad encoders. Do you think it is possible to use your RealtimeIO core with the encoder plugins to get the values of the scales into LinuxCNC?
Do you see, that there's an issue with RealtimeIO and EtherCAT in parallel? (For EtherCAT I'll use the NIC of the PC chipset. For RIO I wanted to use the W5500 Ethernet module with an USB-Ethernet adapter to the PC.

Thanks for your support!

MichaSch96 wrote:

Do you see, that there's an issue with RealtimeIO and EtherCAT in parallel? (For EtherCAT I'll use the NIC of the PC chipset. For RIO I wanted to use the W5500 Ethernet module with an USB-Ethernet adapter to the PC.

Thanks for your support!
 

never tested, sorry
 

I'm currently rewriting the i2c stuff from scratch,
until now, each device needed its own bus with its own pins.
now i can configure several per bus and also separate them again via multiplexer chip

 

was a lot of work, but this is only the config of one i2c-master, you can also create several, on different pins with different speeds.

I'm still testing and not all the types I've created are working properly yet, but I'm hopeful