TinyUSB is funded by: Adafruit. Purchasing products from them helps to support this project.
TinyUSB is an open-source cross-platform USB Host/Device stack for embedded system, designed to be memory-safe with no dynamic allocation and thread-safe with all interrupt events are deferred then handled in the non-ISR task function. Check out the online Getting started
See the GitHub Discussions as our forum. It is a great place to ask questions and advice from the community or to discuss your TinyUSB-based projects.
For bugs and feature requests, please Getting Started guide for adding TinyUSB to your project or building the examples. If you are new to TinyUSB, we recommend starting with the cdc_msc example.
See Porting guide for adding support for new MCUs and boards.
Supports multiple device configurations by dynamically changing USB descriptors, low power functions such like suspend, resume, and remote wakeup. The following device classes are supported:
Similar to the Device Stack, if you have a special requirement, usbh_app_driver_get_cb() can be used to write your own class driver without modifying the stack.
TinyUSB is completely thread-safe by pushing all Interrupt Service Request (ISR) events into a central queue, then processing them later in the non-ISR context task function. It also uses semaphore/mutex to access shared resources such as Communication Device Class (CDC) FIFO. Therefore the stack needs to use some of the OS's basic APIs. Following OSes are already supported out of the box.
Following CPUs are supported, check out Supported Devices for comprehensive list of driver, features for each CPU.
| Manufacturer | Family | |
|---|---|---|
| Allwinner | F1C100s/F1C200s | |
| Analog | MAX3421E (usb host shield) | |
| Brigetek | FT90x | |
| Broadcom | BCM2711, BCM2837 | |
| Dialog | DA1469x | |
| Espressif | ESP32 S2, S3 | |
| GigaDevice | GD32VF103 | |
| Infineon | XMC4500 | |
| MicroChip |
SAM: D11, D21, D51, E5x, G55, L2x, E7x, S7x, V7x PIC: 24, 32mm, 32mk, 32mx, 32mz, dsPIC33 |
|
| Mind Montion | mm32 | |
| NordicSemi | nRF52833, nRF52840, nRF5340 | |
| Nuvoton | NUC 120, 121, 125, 126, 505 | |
| NXP |
iMXRT: RT10xx, RT11xx Kinetis: KL, K32L2 LPC: 11u, 13, 15, 17, 18, 40, 43, 51u, 54, 55 MCX: A15, N9 |
|
| Raspberry Pi | RP2040 | |
| Renesas |
RA: 4M1, 4M3, 6M1, 6M5 RX: 63N, 65N, 72N |
|
| Silabs | EFM32GG12 | |
| Sony | CXD56 | |
| ST STM32 |
F0, F1, F2, F3, F4, F7, G0, G4, H5, H7, L0, L1, L4, L4+, L5, U5, WB |
|
| TI | MSP430, MSP432E4, TM4C123 | |
| ValentyUSB | eptri | |
| WCH |
CH32F: F20x CH32V: V20x, V307 |
|
All TinyUSB sources in the src folder are licensed under MIT
license, the Full license is here. However, each file can be
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.
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