Hi,
1) 4FM GUI is designed for our custom boards that use the PCIe interface. Using this you can monitor diagnostics, board information, programming the firmware to flash and etc.
2) Yes you can use it. Our reference designs except for PCIe specified mainly use the ethernet communication. Please keep following the 4FM Getting Started Guide. You can skip the PCIe information. You should have the sources for ML605_FMC30RF with using Ethernet after 4DSP BSP installation.
Thanks,
Kyu