10G/25G Ethernet (MRMAC) Ref Designs for Quad SFP28 FMC

This is the documentation for the 10G/25G Ethernet reference designs for the Opsero Quad SFP28 FMC. The designs use the Versal Integrated 100G Multirate Ethernet MAC (MRMAC) to drive each of the four SFP28 ports as an independent 10GbE or 25GbE channel.

User Guide

• Description
  • Block diagram
  • Supported Hardware Platforms
  • Supported Software
• Requirements
  • List of supported boards
• Build instructions
  • Source code
  • License requirements
  • Target designs
  • Windows users
  • Linux users
• Stand-alone Echo Server
  • Building the Vitis workspace
  • Run the application
  • Example usage
• PetaLinux
  • Requirements
  • How to build
  • Boot from SD card
  • Boot via JTAG
  • UART terminal
  • Port configurations
  • Example Usage
• Advanced: project structure and customization
  • Repository layout
  • Target naming
  • config/data.json and config/update.py
  • Make-driven build flow
  • Vivado side
  • Vitis side
  • PetaLinux side
  • Where build outputs land
• Troubleshooting
  • Build failures
  • PetaLinux / hardware issues
  • Echo server issues
• Revision History
  • 2025.2 (June 2026)