Welcome to the USRP FPGA HDL source code tree! This repository contains free & open-source FPGA HDL for the Universal Software Radio Peripheral (USRP™) SDR platform, created and sold by Ettus Research. A large percentage of the source code is written in Verilog.

This repository contains the FPGA source for the following generations of USRP devices.

• Directory: usrp1
• Devices: USRP Classic Only
• Tools: Quartus from Altera
• Build Instructions

• Directory: usrp2
• Devices: USRP N2X0, USRP B100, USRP E1X0, USRP2
• Tools: ISE from Xilinx, GNU make
• Build Instructions
• Customization Instructions

• Directory: usrp3
• Devices: USRP B2X0, USRP X Series, USRP E3X0, USRP N3xx
• Tools: Vivado from Xilinx, ISE from Xilinx, GNU make
• Build Instructions
• Simulation

Pre-built FPGA and Firmware images are not hosted here. Please visit the FPGA and Firmware manual page for instructions on downloading and using pre-built images. In most cases, running the following command will do the right thing.

$ uhd_images_downloader

This FPGA manual is available on the web at http://files.ettus.com/manual/md_fpga.html for the most recent stable version of UHD. If you wish to read documentation for a custom/unstable branch you will need to build it and open it locally using a web browser. To do so please install Doxygen on your system and run the following commands:

$ cd docs
$ make
$ sensible-browser html/index.html