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streamlined getting_started
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Getting Started
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***************
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This tutorial will guide you through setting up TinyUSB for your first project. We'll cover the basic integration steps and build your first example application.
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This guide will get you up and running with TinyUSB quickly. We'll start with working examples, then show you how to integrate TinyUSB into your own projects.
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Add TinyUSB to your project
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||||
---------------------------
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||||
Quick Start Examples
|
||||
====================
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||||
|
||||
To incorporate TinyUSB into your project:
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||||
The fastest way to understand TinyUSB is to see it working. These examples demonstrate core functionality and can be built immediately. We'll assume you are using the stm32f407disco board.
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* Copy this repository or add it as a git submodule to a subfolder in your project. For example, place it at ``your_project/tinyusb``
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||||
* Add all the ``.c`` files in the ``tinyusb/src`` folder to your project
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||||
* Add ``your_project/tinyusb/src`` to your include path. Also ensure that your include path contains the configuration file ``tusb_config.h``.
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* Ensure all required macros are properly defined in ``tusb_config.h``. The configuration file from the demo applications provides a good starting point, but you'll need to add additional macros such as ``CFG_TUSB_MCU`` and ``CFG_TUSB_OS``. These are typically passed by make/cmake to maintain unique configurations for different boards.
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* If you're using the **device stack**, you need to implement all **tud descriptor** callbacks for the stack to work.
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* Add a ``tusb_init(rhport, role)`` call to your reset initialization code.
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* Call ``tusb_int_handler(rhport, in_isr)`` from your USB IRQ handler
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* Implement all enabled classes' callbacks.
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* If you're not using an RTOS, you must call the ``tud_task()``/``tuh_task()`` functions periodically. These task functions handle all callbacks and core functionality.
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Simple Device Example
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||||
---------------------
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.. note::
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TinyUSB uses consistent naming prefixes: ``tud_`` for device stack functions and ``tuh_`` for host stack functions. See the :doc:`../reference/glossary` for more details.
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||||
The `cdc_msc <https://github.com/hathach/tinyusb/tree/master/examples/device/cdc_msc>`_ example creates a USB device with both a virtual serial port (CDC) and mass storage (MSC).
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||||
.. code-block:: c
|
||||
**What it does:**
|
||||
* Appears as a serial port that echoes back any text you send
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* Appears as a small USB drive with a README.TXT file
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* Blinks an LED to show activity
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int main(void) {
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tusb_rhport_init_t dev_init = {
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.role = TUSB_ROLE_DEVICE,
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.speed = TUSB_SPEED_AUTO
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};
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// tud descriptor omitted here
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tusb_init(0, &dev_init); // initialize device stack on roothub port 0
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tusb_rhport_init_t host_init = {
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.role = TUSB_ROLE_HOST,
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.speed = TUSB_SPEED_AUTO
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};
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tusb_init(1, &host_init); // initialize host stack on roothub port 1
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while(1) { // the mainloop
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your_application_code();
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tud_task(); // device task
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tuh_task(); // host task
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}
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}
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void USB0_IRQHandler(void) {
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tusb_int_handler(0, true);
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}
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void USB1_IRQHandler(void) {
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tusb_int_handler(1, true);
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}
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Examples
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||||
--------
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For your convenience, TinyUSB contains a handful of examples for both host and device with/without RTOS to quickly test the functionality as well as demonstrate how API should be used. Most examples will work on most of :doc:`the supported boards <boards>`. Firstly we need to ``git clone`` if not already
|
||||
**Build and run:**
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||||
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||||
.. code-block:: bash
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$ git clone https://github.com/hathach/tinyusb tinyusb
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$ cd tinyusb
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TinyUSB separates example applications from board-specific hardware configurations (Board Support Packages, BSP). The BSP provides hardware abstraction including pin mappings, clock settings, linker scripts, and hardware initialization routines.
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* Example applications live in ``examples/device``, ``examples/host``, and ``examples/dual`` directories.
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* BSP configurations are stored in ``hw/bsp/FAMILY/boards/BOARD_NAME``. For example, raspberry_pi_pico is located in ``hw/bsp/rp2040/boards/raspberry_pi_pico`` where ``FAMILY=rp2040`` and ``BOARD=raspberry_pi_pico``. When you build an example with ``BOARD=raspberry_pi_pico``, the build system automatically finds and uses the corresponding BSP.
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||||
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||||
Dependencies
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||||
^^^^^^^^^^^^
|
||||
|
||||
Before building, you must first download dependencies including MCU low-level peripheral drivers and external libraries such as FreeRTOS (required by some examples). You can do this in either of two ways:
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||||
|
||||
1. Run the ``tools/get_deps.py {FAMILY}`` script to download all dependencies for a specific MCU family. To download dependencies for all families, use ``FAMILY=all``.
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||||
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||||
.. code-block:: bash
|
||||
|
||||
$ python tools/get_deps.py rp2040
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||||
|
||||
2. Or run the ``get-deps`` target in one of the example folders as follows.
|
||||
|
||||
.. code-block:: bash
|
||||
|
||||
$ python tools/get_deps.py stm32f4 # Download dependencies
|
||||
$ cd examples/device/cdc_msc
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||||
$ make BOARD=feather_nrf52840_express get-deps
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||||
$ make BOARD=stm32f407disco all flash
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||||
|
||||
You only need to do this once per family. Check out :doc:`complete list of dependencies and their designated path here <dependencies>`
|
||||
Connect to your computer and you'll see both a new serial port and a small USB drive appear.
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||||
|
||||
Build Examples
|
||||
^^^^^^^^^^^^^^
|
||||
Simple Host Example
|
||||
-------------------
|
||||
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||||
Examples support both Make and CMake build systems for most MCUs. However, some MCU families (such as Espressif and RP2040) only support CMake. First change directory to an example folder.
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||||
The `cdc_msc_hid <https://github.com/hathach/tinyusb/tree/master/examples/host/cdc_msc_hid>`_ example creates a USB host that can connect to USB devices with CDC, MSC, or HID interfaces.
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||||
|
||||
**What it does:**
|
||||
* Detects and enumerates connected USB devices
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||||
* Communicates with CDC devices (like USB-to-serial adapters)
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||||
* Reads from MSC devices (like USB drives)
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||||
* Receives input from HID devices (like keyboards and mice)
|
||||
|
||||
**Build and run:**
|
||||
|
||||
.. code-block:: bash
|
||||
|
||||
$ cd examples/device/cdc_msc
|
||||
$ python tools/get_deps.py stm32f4 # If not done already
|
||||
$ cd examples/host/cdc_msc_hid
|
||||
$ make BOARD=stm32f407disco all flash
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|
||||
Then compile with make or cmake
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||||
Connect USB devices to see enumeration messages and device-specific interactions in the serial output.
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||||
|
||||
Project Structure
|
||||
-----------------
|
||||
|
||||
TinyUSB separates example applications from board-specific hardware configurations:
|
||||
|
||||
* **Example applications**: Located in `examples/device/ <https://github.com/hathach/tinyusb/tree/master/examples/device>`_, `examples/host/ <https://github.com/hathach/tinyusb/tree/master/examples/host>`_, and `examples/dual/ <https://github.com/hathach/tinyusb/tree/master/examples/dual>`_ directories
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||||
* **Board Support Packages (BSP)**: Located in ``hw/bsp/FAMILY/boards/BOARD_NAME/`` with hardware abstraction including pin mappings, clock settings, and linker scripts
|
||||
|
||||
For example, raspberry_pi_pico is located in `hw/bsp/rp2040/boards/raspberry_pi_pico <https://github.com/hathach/tinyusb/tree/master/hw/bsp/rp2040/boards/raspberry_pi_pico>`_ where ``FAMILY=rp2040`` and ``BOARD=raspberry_pi_pico``. When you build with ``BOARD=raspberry_pi_pico``, the build system automatically finds the corresponding BSP using the FAMILY.
|
||||
|
||||
Add TinyUSB to Your Project
|
||||
============================
|
||||
|
||||
Once you've seen TinyUSB working, here's how to integrate it into your own project:
|
||||
|
||||
Integration Steps
|
||||
-----------------
|
||||
|
||||
1. **Get TinyUSB**: Copy this repository or add it as a git submodule to your project at ``your_project/tinyusb``
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||||
|
||||
2. **Add source files**: Add all ``.c`` files from ``tinyusb/src/`` to your project
|
||||
|
||||
3. **Configure include paths**: Add ``your_project/tinyusb/src`` to your include path. Ensure your include path contains ``tusb_config.h``
|
||||
|
||||
4. **Configure TinyUSB**: Create ``tusb_config.h`` with required macros like ``CFG_TUSB_MCU`` and ``CFG_TUSB_OS``. Copy from ``examples/device/*/tusb_config.h`` as a starting point
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||||
|
||||
5. **Implement USB descriptors**: For device stack, implement all ``tud_descriptor_*_cb()`` callbacks
|
||||
|
||||
6. **Initialize TinyUSB**: Add ``tusb_init()`` to your initialization code
|
||||
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||||
7. **Handle interrupts**: Call ``tusb_int_handler()`` from your USB IRQ handler
|
||||
|
||||
8. **Run USB tasks**: Call ``tud_task()`` (device) or ``tuh_task()`` (host) periodically in your main loop
|
||||
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||||
9. **Implement class callbacks**: Implement callbacks for enabled USB classes
|
||||
|
||||
Simple Integration Example
|
||||
--------------------------
|
||||
|
||||
.. code-block:: c
|
||||
|
||||
#include "tusb.h"
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||||
|
||||
int main(void) {
|
||||
board_init(); // Your board initialization
|
||||
|
||||
tusb_rhport_init_t dev_init = {
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||||
.role = TUSB_ROLE_DEVICE,
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||||
.speed = TUSB_SPEED_AUTO
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||||
};
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||||
// tud_descriptor_* callbacks omitted here
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||||
tusb_init(0, &dev_init);
|
||||
|
||||
while(1) {
|
||||
tud_task(); // TinyUSB device task
|
||||
your_application(); // Your application code
|
||||
}
|
||||
}
|
||||
|
||||
void USB_IRQHandler(void) {
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||||
tusb_int_handler(0, true);
|
||||
}
|
||||
|
||||
.. note::
|
||||
Unlike many libraries, TinyUSB callbacks don't need to be explicitly registered. The stack automatically calls functions with specific names (e.g., ``tud_cdc_rx_cb()``) when events occur. Simply implement the callbacks you need.
|
||||
|
||||
.. note::
|
||||
TinyUSB uses consistent naming prefixes: ``tud_`` for device stack functions and ``tuh_`` for host stack functions. See the :doc:`reference/glossary` for more details.
|
||||
|
||||
Development Tips
|
||||
================
|
||||
|
||||
**Debug builds and logging:**
|
||||
|
||||
.. code-block:: bash
|
||||
|
||||
$ # make
|
||||
$ make BOARD=feather_nrf52840_express all
|
||||
$ make BOARD=stm32f407disco DEBUG=1 all # Debug build
|
||||
$ make BOARD=stm32f407disco LOG=2 all # Enable detailed logging
|
||||
|
||||
**CMake build system:**
|
||||
|
||||
.. code-block:: bash
|
||||
|
||||
$ # cmake
|
||||
$ mkdir build && cd build
|
||||
$ cmake -DBOARD=raspberry_pi_pico ..
|
||||
$ cmake -DBOARD=stm32f407disco ..
|
||||
$ make
|
||||
|
||||
To list all available targets with cmake
|
||||
**Alternative flash methods:**
|
||||
|
||||
.. code-block:: bash
|
||||
|
||||
$ cmake --build . --target help
|
||||
$ make BOARD=stm32f407disco flash-jlink # Use J-Link
|
||||
$ make BOARD=stm32f407disco flash-openocd # Use OpenOCD
|
||||
$ make BOARD=stm32f407disco all uf2 # Generate UF2 for drag-and-drop
|
||||
|
||||
Note: Some examples, especially those that use Vendor class (e.g., webUSB), may require udev permissions on Linux (and/or macOS) to access USB devices. It depends on your OS distribution, but typically copying ``99-tinyusb.rules`` and reloading udev is sufficient
|
||||
**IAR Embedded Workbench:**
|
||||
|
||||
.. code-block:: bash
|
||||
|
||||
$ cp examples/device/99-tinyusb.rules /etc/udev/rules.d/
|
||||
$ sudo udevadm control --reload-rules && sudo udevadm trigger
|
||||
|
||||
RootHub Port Selection
|
||||
~~~~~~~~~~~~~~~~~~~~~~
|
||||
|
||||
If a board has several ports, one port is chosen by default in the individual board.mk file. Use option ``RHPORT_DEVICE=x`` or ``RHPORT_HOST=x`` To choose another port. For example to select the HS port of a STM32F746Disco board, use:
|
||||
|
||||
.. code-block:: bash
|
||||
|
||||
$ make BOARD=stm32f746disco RHPORT_DEVICE=1 all
|
||||
|
||||
$ cmake -DBOARD=stm32f746disco -DRHPORT_DEVICE=1 ..
|
||||
|
||||
Port Speed
|
||||
~~~~~~~~~~
|
||||
|
||||
An MCU can support multiple operational speeds. By default, the example build system uses the fastest speed supported by the board. Use the option ``RHPORT_DEVICE_SPEED=OPT_MODE_FULL_SPEED/OPT_MODE_HIGH_SPEED`` or ``RHPORT_HOST_SPEED=OPT_MODE_FULL_SPEED/OPT_MODE_HIGH_SPEED``. For example, to force the F723 to operate at full speed instead of the default high speed:
|
||||
|
||||
.. code-block:: bash
|
||||
|
||||
$ make BOARD=stm32f746disco RHPORT_DEVICE_SPEED=OPT_MODE_FULL_SPEED all
|
||||
|
||||
$ cmake -DBOARD=stm32f746disco -DRHPORT_DEVICE_SPEED=OPT_MODE_FULL_SPEED ..
|
||||
|
||||
Size Analysis
|
||||
~~~~~~~~~~~~~
|
||||
|
||||
First install `linkermap tool <https://github.com/hathach/linkermap>`_ then ``linkermap`` target can be used to analyze code size. You may want to compile with ``NO_LTO=1`` since ``-flto`` merges code across ``.o`` files and make it difficult to analyze.
|
||||
|
||||
.. code-block:: bash
|
||||
|
||||
$ make BOARD=feather_nrf52840_express NO_LTO=1 all linkermap
|
||||
|
||||
Flashing the Device
|
||||
^^^^^^^^^^^^^^^^^^^
|
||||
|
||||
The ``flash`` target uses the default on-board debugger (jlink/cmsisdap/stlink/dfu) to flash the binary. Please install the supporting software in advance. Some boards use bootloader/DFU via serial, which requires passing the serial port to the make command
|
||||
|
||||
.. code-block:: bash
|
||||
|
||||
$ make BOARD=feather_nrf52840_express flash
|
||||
$ make SERIAL=/dev/ttyACM0 BOARD=feather_nrf52840_express flash
|
||||
|
||||
Since jlink/openocd can be used with most of the boards, there is also ``flash-jlink/openocd`` (make) and ``EXAMPLE-jlink/openocd`` target for your convenience. Note for stm32 board with stlink, you can use ``flash-stlink`` target as well.
|
||||
|
||||
.. code-block:: bash
|
||||
|
||||
$ make BOARD=feather_nrf52840_express flash-jlink
|
||||
$ make BOARD=feather_nrf52840_express flash-openocd
|
||||
|
||||
$ cmake --build . --target cdc_msc-jlink
|
||||
$ cmake --build . --target cdc_msc-openocd
|
||||
|
||||
Some boards use UF2 bootloader for drag-and-drop into a mass storage device. UF2 files can be generated with the ``uf2`` target
|
||||
|
||||
.. code-block:: bash
|
||||
|
||||
$ make BOARD=feather_nrf52840_express all uf2
|
||||
|
||||
$ cmake --build . --target cdc_msc-uf2
|
||||
|
||||
Debugging
|
||||
^^^^^^^^^
|
||||
|
||||
To compile for debugging add ``DEBUG=1``\ , for example
|
||||
|
||||
.. code-block:: bash
|
||||
|
||||
$ make BOARD=feather_nrf52840_express DEBUG=1 all
|
||||
|
||||
$ cmake -DBOARD=feather_nrf52840_express -DCMAKE_BUILD_TYPE=Debug ..
|
||||
|
||||
Enable Logging
|
||||
~~~~~~~~~~~~~~
|
||||
|
||||
If you encounter issues running examples or need to submit a bug report, you can enable TinyUSB's built-in debug logging with the optional ``LOG=`` parameter. ``LOG=1`` prints only error messages, while ``LOG=2`` prints more detailed information about ongoing events. ``LOG=3`` or higher is not used yet.
|
||||
|
||||
.. code-block:: bash
|
||||
|
||||
$ make BOARD=feather_nrf52840_express LOG=2 all
|
||||
|
||||
$ cmake -DBOARD=feather_nrf52840_express -DLOG=2 ..
|
||||
|
||||
Logging Performance Impact
|
||||
~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||||
|
||||
By default, log messages are printed via the on-board UART, which is slow and consumes significant CPU time compared to USB speeds. If your board supports an on-board or external debugger, it would be more efficient to use it for logging. There are 2 protocols:
|
||||
|
||||
|
||||
* `LOGGER=rtt`: use `Segger RTT protocol <https://www.segger.com/products/debug-probes/j-link/technology/about-real-time-transfer/>`_
|
||||
|
||||
* Cons: requires jlink as the debugger.
|
||||
* Pros: work with most if not all MCUs
|
||||
* Software viewer is JLink RTT Viewer/Client/Logger which is bundled with JLink driver package.
|
||||
|
||||
* ``LOGGER=swo``\ : Use dedicated SWO pin of ARM Cortex SWD debug header.
|
||||
|
||||
* Cons: Only works with ARM Cortex MCUs except M0
|
||||
* Pros: should be compatible with more debugger that support SWO.
|
||||
* Software viewer should be provided along with your debugger driver.
|
||||
|
||||
.. code-block:: bash
|
||||
|
||||
$ make BOARD=feather_nrf52840_express LOG=2 LOGGER=rtt all
|
||||
$ make BOARD=feather_nrf52840_express LOG=2 LOGGER=swo all
|
||||
|
||||
$ cmake -DBOARD=feather_nrf52840_express -DLOG=2 -DLOGGER=rtt ..
|
||||
$ cmake -DBOARD=feather_nrf52840_express -DLOG=2 -DLOGGER=swo ..
|
||||
|
||||
IAR Support
|
||||
^^^^^^^^^^^
|
||||
|
||||
IAR Embedded Workbench is a commercial IDE and toolchain for embedded development. TinyUSB provides integration support for IAR through project connection files and native CMake support.
|
||||
|
||||
Use project connection
|
||||
~~~~~~~~~~~~~~~~~~~~~~
|
||||
|
||||
IAR Project Connection files are provided to import TinyUSB stack into your project.
|
||||
|
||||
* A buildable project for your MCU needs to be created in advance.
|
||||
|
||||
* Take example of STM32F0:
|
||||
|
||||
- You need ``stm32f0xx.h``, ``startup_stm32f0xx.s``, and ``system_stm32f0xx.c``.
|
||||
|
||||
- ``STM32F0xx_HAL_Driver`` is only needed to run examples, TinyUSB stack itself doesn't rely on MCU's SDKs.
|
||||
|
||||
* Open ``Tools -> Configure Custom Argument Variables`` (Switch to ``Global`` tab if you want to do it for all your projects)
|
||||
Click ``New Group ...``, name it to ``TUSB``, Click ``Add Variable ...``, name it to ``TUSB_DIR``, change it's value to the path of your TinyUSB stack,
|
||||
for example ``C:\\tinyusb``
|
||||
|
||||
**Import stack only**
|
||||
|
||||
Open ``Project -> Add project Connection ...``, click ``OK``, choose ``tinyusb\\tools\\iar_template.ipcf``.
|
||||
|
||||
**Run examples**
|
||||
|
||||
1. Run ``iar_gen.py`` to generate .ipcf files of examples:
|
||||
|
||||
.. code-block::
|
||||
|
||||
> cd C:\tinyusb\tools
|
||||
> python iar_gen.py
|
||||
|
||||
2. Open ``Project -> Add project Connection ...``, click ``OK``, choose ``tinyusb\\examples\\(.ipcf of example)``.
|
||||
For example ``C:\\tinyusb\\examples\\device\\cdc_msc\\iar_cdc_msc.ipcf``
|
||||
|
||||
Native CMake support
|
||||
~~~~~~~~~~~~~~~~~~~~
|
||||
|
||||
With 9.50.1 release, IAR added experimental native CMake support (strangely not mentioned in public release note). Now it's possible to import CMakeLists.txt then build and debug as a normal project.
|
||||
|
||||
Following these steps:
|
||||
|
||||
1. Add IAR compiler binary path to system ``PATH`` environment variable, such as ``C:\Program Files\IAR Systems\Embedded Workbench 9.2\arm\bin``.
|
||||
2. Create new project in IAR, in Tool chain dropdown menu, choose CMake for Arm then Import ``CMakeLists.txt`` from chosen example directory.
|
||||
3. Set up board option in ``Option - CMake/CMSIS-TOOLBOX - CMake``, for example ``-DBOARD=stm32f439nucleo -DTOOLCHAIN=iar``, **Uncheck 'Override tools in env'**.
|
||||
4. (For debug only) Choose correct CPU model in ``Option - General Options - Target``, to profit register and memory view.
|
||||
For IAR users, project connection files are available. Import `tools/iar_template.ipcf <https://github.com/hathach/tinyusb/tree/master/tools/iar_template.ipcf>`_ or use native CMake support (IAR 9.50.1+). See `tools/iar_gen.py <https://github.com/hathach/tinyusb/tree/master/tools/iar_gen.py>`_ for automated project generation.
|
||||
|
||||
Common Issues and Solutions
|
||||
---------------------------
|
||||
===========================
|
||||
|
||||
**Build Errors**
|
||||
|
||||
@ -294,65 +166,18 @@ Common Issues and Solutions
|
||||
* **Enumeration failure**: Enable logging with ``LOG=2`` and check for USB protocol errors
|
||||
* **Hard faults/crashes**: Verify interrupt handler setup and stack size allocation
|
||||
|
||||
Quick Start Examples
|
||||
--------------------
|
||||
**Linux Permissions**
|
||||
|
||||
Now that you have TinyUSB set up, you can try these examples to see it in action.
|
||||
|
||||
Simple Device Example
|
||||
^^^^^^^^^^^^^^^^^^^^^
|
||||
|
||||
The ``cdc_msc`` example creates a USB device with both a virtual serial port (CDC) and mass storage (MSC). This is the most commonly used example and demonstrates core device functionality.
|
||||
|
||||
**What it does:**
|
||||
* Appears as a serial port that echoes back any text you send
|
||||
* Appears as a small USB drive with a README.TXT file
|
||||
* Blinks an LED to show activity
|
||||
|
||||
**Build and run:**
|
||||
Some examples require udev permissions to access USB devices:
|
||||
|
||||
.. code-block:: bash
|
||||
|
||||
$ cd examples/device/cdc_msc
|
||||
$ make BOARD=stm32f407disco all
|
||||
$ make BOARD=stm32f407disco flash
|
||||
|
||||
**Key files:**
|
||||
* ``src/main.c`` - Main application with ``tud_task()`` loop
|
||||
* ``src/usb_descriptors.c`` - USB device descriptors
|
||||
* ``src/msc_disk.c`` - Mass storage implementation
|
||||
|
||||
**Expected behavior:** Connect to your computer and you'll see both a new serial port and a small USB drive appear.
|
||||
|
||||
Simple Host Example
|
||||
^^^^^^^^^^^^^^^^^^^
|
||||
|
||||
The ``cdc_msc_hid`` example creates a USB host that can connect to USB devices with CDC, MSC, or HID interfaces.
|
||||
|
||||
**What it does:**
|
||||
* Detects and enumerates connected USB devices
|
||||
* Communicates with CDC devices (like USB-to-serial adapters)
|
||||
* Reads from MSC devices (like USB drives)
|
||||
* Receives input from HID devices (like keyboards and mice)
|
||||
|
||||
**Build and run:**
|
||||
|
||||
.. code-block:: bash
|
||||
|
||||
$ cd examples/host/cdc_msc_hid
|
||||
$ make BOARD=stm32f407disco all
|
||||
$ make BOARD=stm32f407disco flash
|
||||
|
||||
**Key files:**
|
||||
* ``src/main.c`` - Main application with ``tuh_task()`` loop
|
||||
* ``src/cdc_app.c`` - CDC host functionality
|
||||
* ``src/msc_app.c`` - Mass storage host functionality
|
||||
* ``src/hid_app.c`` - HID host functionality
|
||||
|
||||
**Expected behavior:** Connect USB devices to see enumeration messages and device-specific interactions in the serial output.
|
||||
$ cp `examples/device/99-tinyusb.rules <https://github.com/hathach/tinyusb/tree/master/examples/device/99-tinyusb.rules>`_ /etc/udev/rules.d/
|
||||
$ sudo udevadm control --reload-rules && sudo udevadm trigger
|
||||
|
||||
Next Steps
|
||||
^^^^^^^^^^
|
||||
==========
|
||||
|
||||
* Check :doc:`reference/boards` for board-specific information
|
||||
* Explore more examples in ``examples/device/`` and ``examples/host/`` directories
|
||||
* Explore more examples in `examples/device/ <https://github.com/hathach/tinyusb/tree/master/examples/device>`_ and `examples/host/ <https://github.com/hathach/tinyusb/tree/master/examples/host>`_ directories
|
||||
* Read :doc:`reference/usb_concepts` to understand USB fundamentals
|
||||
|
||||
Reference in New Issue
Block a user