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How to Build TCP Networking with W5500 on a Zynq FPGA?

This project connects FPGA logic on a Zynq platform directly to a Windows TCP application using the WIZnet W5500 over SPI.

ronpang

Published August 14, 2026

Original author: qq 1922638Original source (new tab)

How to Build TCP Networking with W5500 on a Zynq FPGA?

Project description

How to Build TCP Networking with W5500 on a Zynq FPGA? Summary This project connects FPGA logic on a Zynq platform directly to a Windows TCP application using the WIZnet W5500 over SPI. The FPGA implements the SPI controller, socket-control state machines, buffering, and data-path logic in Verilog, while the W5500 handles Ethernet MAC/PHY functions and the hardwired TCP/IP stack. The result is a useful educational architecture for studying where hardware networking offload ends and FPGA application logic begins. What the Project Does The source project uses a Zynq expansion interface and…

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