Port of Remora to uFlexiNet+FlexiHAL
Start by flashing the Remora UF2 firmware to your FlexiHAL.
This firmware uses a basically unchanged version of the Remora-eth-0.3.0 ethernet component that is located here:
https://github.com/Expatria-Technologies/Remora/tree/main/LinuxCNC/Components/Remora-eth
All testing is done with the Flexi-Pi LinuxCNC image from here:
https://github.com/Expatria-Technologies/remora-flexi-hal
From your linuxcnc home folder, clone the Remora repo and move to the Remora-eth component folder.
git clone https://github.com/Expatria-Technologies/Remora.git
cd Remora/LinuxCNC/Components/Remora-eth
Compile the component using halcompile
sudo halcompile --install remora-eth.c
Then upload your configuration file to the FlexiHAL using the upload_config.py script that should be in your configuration folder:
python3 upload_config.py FlexiHAL-config.txt
A basic configuration to get started is located here:
https://github.com/Expatria-Technologies/linuxcnc_configs/tree/main/flexi-hal-uFlexiNet-XYZ
To use the RS485 interface on the FlexiHAL you can set up a virtual serial port and use socat to bridge between userspace Modbus components and Remora. If the RS485 component is included in the board config txt, it will listen on port 27183 for UDP packets and forward them to the RS485 port:
socat pty, link=/tmp/virtualcom0, raw udp:10.10.10.10:27183 &
All credit to Scotta and Terje IO as this project draws heavily from Remora (especially the RP2040 and STM32-W5500 ports) and also GRBLHAL (especially for the SPI DMA and networking stack)
