White Rabbit Switch
This page hosts all CERN stable firmware releases for the WR switch, the main component of the White Rabbit project. Each release is a package containing FPGA gateware (wr-switch-hdl repository) and software (wr-switch-sw repository) running in the embedded Linux.
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Parent Projects

White Rabbit
White Rabbit provides **sub-nanosecond accuracy** and picoseconds precision of **synchronization** for large distributed systems
Related Projects

Software for White Rabbit PTP Core
White Rabbit PTP Core(WRPC) Software runs on a Lattice Mico 32 soft-core processor implemented as part of [WRPC Gateware](https://www.ohwr.org/project/wr-cores/wikis/Wrpc-core)
White Rabbit Compliance Tests
This project hosts compliance tests dedicated for WR devices
White Rabbit Fixed Point Calculations
This project focuses on performing, with high precision, the WR PTP calculations in fixed-point arithmetic

White Rabbit Switch - Gateware
Figure 1 shows the internals of the WR Switch HDL design

White Rabbit Switch - Hardware v3
White Rabbit Switch is an open hardware design of an **18-ports Ethernet switch** licensed under [CERN OHL 1.2](https://www.ohwr.org/project/cernohl/wiki)

White Rabbit Switch - Hardware V4
This project describes the development of the hardware of the White Rabbit Switch version 4 (WRS-v4)
Latest News
WR Switch firmware v7.0 release
Dear Rabbits, Following the months of preparation, the WRS firmware v7.0 is now released! We would like to invite you to download, validate it in your installations and ultimately update your switches with it.
WR Switch firmware v5.0.1 released
Since v5.0 was released we have found a few problems in the WR Switch software package. This new v5.0.1 release does not include new functionality but contains important hotfixes to the v5.
WR Switch firmware v5.0 released
The new stable release v5.0 of the WR Switch firmware comes this year as a Christmas present. As always, you can find all the links to download the firmware binaries and manuals on our release wiki page