CherryUSB is a tiny, beautiful and portable USB host and device stack for embedded system with USB IP

An FPGA-based USB 1.1 (full-speed) device core to implement USB-serial, USB-camera, USB-audio, USB-hid, etc. It requires only 3 FPGA common IOs rather than additional chips. 基于FPGA的USB 1.1 (full-speed) device端控制器，可实现USB串口、USB摄像头、USB音频、U盘、USB键盘等设备，只需要3个FPGA普通IO，而不需要额外的接口芯片。

Highly flexible Composite USB Device Library

Single/Multi-channel Full Speed USB interface for FPGA and ASIC designs

🔥🔥串口工具,通知工具，网络监听，多文件断点下载,xls，xlsx操作,APK安装/系统应用安装，文件处理,crash控制，音视频播放,usb设备检测，adb工具等...

Expose standard or fully custom USB peripherals (gadgets) through a USB device controller (UDC) on Linux using Rust.

Basic USB-CDC device core (Verilog)

Efficient USB device stack designed for embedded systems. Includes support for Audio, CDC-ACM, CDC-EEM, HID, MSC, and Vendor classes.

L1 R1：WCH 24MHz MCS-51 USB MCU (CH552T/CH552P/CH552E/CH552G/CH551G)

Raspberry Pi Zero exploiting gadget using ethernet over USB

USB to CAN adapter firmware

USB serial device (CDC-ACM)

Raspberry Pi CM4 that plugs directly to TV/monitor

Use a Raspberry Pi Pico board to process USB MIDI data between a USB MIDI Keyboard or other device and a PC or other USB MIDI Host

L1 R2: WCH Cortex-M0 ETH/BLE SoC（CH579/CH578/CH577)

Open Hardware USB to Serial converter

Full Speed USB DFU interface for FPGA and ASIC designs

Implementation of the UsbBus trait of usb-device, which simulates a Bus as a USBIP Server. Useful for developing UsbClass traits and simulating devices.

Provide a set of applications for STM32H5xx series based on the STM32 Classic Core Middleware libraries.

L2 R2: WCH RISC-V BLE SoC (CH573/CH571)