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Source code


Name: tcp_socket
Created: Nov 24, 2013
Updated: Sep 22, 2014
SVN Updated: Dec 23, 2013

Other project properties

Category: Communication controller
Language: Verilog
Development status: Alpha
Additional info: Design done , FPGA proven
WishBone Compliant: No
License: Others


TCP Socket is a TCP/IP stack implementation. The core acts as a server, allowing a remote client to establish a bidirectional TCP socket connection directly to logic within your FPGA.

TCP Server
  • Easily add network connectivity to your FPGA
  • No need for a soft CPU
  • Small footprint (less than 800 LUTs in Spartan 6)
  • Free Open Source Solution (MIT license)
  • Connect to your FPGA with a web browser or telnet client

TCP Socket is implemented in C, and is compiled into synthesisable Verilog using the Chips development environment (included). A precompiled Verilog module precompiled/server.v is also provided to get you up and running. For more details check out TCPIP.pdf .

A simple web-app demo for the Digilent Atlys Spartan 6 development card is provided. This includes everything you need to get up and running, including the Ethernet MAC. If you want to give it a try, why not use the precompiled .bit file. For more details check out README.pdf .