tinyusb

TinyUSB

TinyUSB is an open-source cross-platform USB Host/Device stack for embedded system.

.
├── docs            # Documentation
├── examples        # Sample with Makefile and Segger Embedded build support
├── hw
│   ├── bsp         # Supported boards source files
│   └── mcu         # Low level mcu core & peripheral drivers
├── lib             # Sources from 3rd party such as freeRTOS, fatfs ...
├── src             # All sources files for TinyUSB stack itself.
├── tests           # Unit tests for the stack
└── tools           # Files used internally

Device Stack

• Human Interface Device (HID): Keyboard, Mouse, Generic
• Communication Class (CDC)
• Mass Storage Class (MSC)
• Musical Instrument Digital Interface (MIDI)

Host Stack

Most active development is on the Device stack. The Host stack is under rework and largely untested.

• Human Interface Device (HID): Keyboard, Mouse, Generic
• Mass Storage Class (MSC)
• Hub currently only support 1 level of hub (due to my laziness)

OS Abtraction layer

Currently the following OS are supported with tinyusb out of the box with a simple change of CFG_TUSB_OS macro.

• No OS
• FreeRTOS
• MyNewt (work in progress)

Supported MCUs

The stack supports the following MCUs

• Nordic: nRF52840
• NXP: LPC11Uxx, LPC13xx, LPC175x_6x, LPC177x_8x, LPC40xx, LPC43xx
• MicroChip: SAMD21, SAMD51 (device only)
• ST: STM32F4

Here is the list of supported Boards

Compiler & IDE

The stack is developed with GCC compiler, and should be compilable with others. However, it requires C99 to build with. Folder examples provide Makefile and Segger Embedded Studio build support.

Getting Started

Here is the details for getting started with the stack.

Uses

TinyUSB is currently used by these other projects:

• Adafruit nRF52 Arduino
• Adafruit nRF52 Bootloader
• CircuitPython

Porting

Want to help add TinyUSB support for a new MCU? Read here for an explanation on the low-level API needed by TinyUSB.

License

BSD license for all tinyusb sources Full license is here and most of the code base. However each file/folder is individually licensed especially those in lib and hw/mcu folder. Please make sure you understand all the license term for files you use in your project.