README.md

Low-Speed USB HID Device Implementation for FPGA and Simulation.

This repository is a fork from pbing/USB. The following extensions have been implemented:

• USB keyboard has been added, include keyboard LED control.
• The project now builds in Verilator and is no longer dependent on the Quartus toolchain.

This repository is used in the BoxLambda project to simulate a USB keyboard and mouse to test BoxLambda's USB HID Host core functionality. The BoxLambda USB HID Host core can be found here.

Original README from pbing/USB

FPGA USB 1.1 Low-Speed Implementation

Derived from an example application which emulates a mouse. The cursor will move in a continual octagon.

Status

• FPGA proven as additional mouse for Windows 10
• Does not work with macOS -- although USB continous IN packages can be observed with a logic analyzer.

Installation

git clone https://github.com/pbing/USB.git
cd USB
git submodule update --init --recursive

Used Parts

• Cyclone V GX Starter Kit

• The USB D+ and D- pads were configured for low-speed (1.5 Mbit/s).

Other IP

• J1 CPU with Wishbone interface