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How to Build a Unified UDP, TCP Client, and TCP Server with W5500 on FPGA?

This project implements a configurable Ethernet endpoint in pure FPGA logic using a WIZnet W5500.

ronpang

Published September 11, 2026

Original author: ꟼꟼ‌✚ 876223965Original source (new tab)

How to Build a Unified UDP, TCP Client, and TCP Server with W5500 on FPGA?

Project description

How to Build a Unified UDP, TCP Client, and TCP Server with W5500 on FPGA? Summary This project implements a configurable Ethernet endpoint in pure FPGA logic using a WIZnet W5500. A single Verilog control framework selects UDP, TCP client, or TCP server behavior through a mode input, while the W5500 provides the underlying hardwired TCP/IP processing and eight independent hardware sockets. The FPGA communicates with the W5500 through SPI and exposes received network payloads to application logic through a FIFO-style interface. This architecture is useful for distributed embedded systems…

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