Micro Research Finland timing devices

To control Micro Research Finland (MRF) devices, we recommend using the mrfioc2 EPICS module.

Installing the mrfioc2 EPICS support module

To use the mrfioc2 module in your EPNix IOC, make sure to add the mrfioc2 package in your support modules:

flake.nix

         # Add your support modules here:
         # ---
-        #support.modules = with pkgs.epnix.support; [ StreamDevice mySupportModule ];
+        support.modules = with pkgs.epnix.support; [ mrfioc2 ];

This makes sure that the mrfioc2 is available during compilation.

For developing your IOC using mrfioc2, follow the mrfioc2 documentation.

Installing the mrf kernel module

To communicate with the MRF devices, you also need to install and load the mrf kernel module.

If you are using NixOS, add this to the NixOS configuration of the board running the IOC:

mrf.nix

{ config, ... }:
{
  # Install the MRF kernel module package
  boot.extraModulePackages = with config.boot.kernelPackages; [ mrf ];
  # Load the "mrf" module at boot
  boot.kernelModules = [ "mrf" ];
}