mirror of
https://github.com/hathach/tinyusb.git
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4b1c8d16f7
Documentation tooling:
- Add the `build-doc` skill and `tools/build_doc.py` wrapper for local
Sphinx builds (clean / -W / open).
- Enable Markdown (MyST) in conf.py and auto-collect
examples/{device,host,dual}/*/README.md into a 3-level Examples nav
(Examples > Device/Host/Dual > example), noting each page's source
location and normalizing headings to a single H1.
- Remove the stale `.claude/commands/build-doc.md`; point the AGENTS.md
Documentation section at the skill.
Example docs:
- Add a README.md for every device/host/dual example: what it does, USB
interface table, notable tusb_config.h settings, generic CMake + Make
build steps, and how to try it.
- Fold each *_freertos variant into its base README, noting the FreeRTOS
source path and any RTOS-specific behavior.
Generated docs/examples/ output is git-ignored. Builds clean with
`sphinx-build -W`.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
DFU Runtime
A minimal device that exposes a DFU runtime interface, advertising to the host that it can be switched into DFU (bootloader) mode.
What it does
- Exposes a single DFU runtime interface alongside normal operation.
- On a DFU_DETACH request, it does not actually reboot into a bootloader; instead it speeds up the LED blink as an indicator (this example is intentionally minimal).
- Provides a BOS / Microsoft OS 2.0 descriptor so Windows binds the WinUSB driver.
- LED blink rate indicates bus state (not mounted / mounted / suspended / DFU detach).
USB Descriptors
| Interface | Class driver |
|---|---|
| 0 | DFU Runtime |
Configuration
Notable tusb_config.h settings:
#define CFG_TUD_DFU_RUNTIME 1
Building
CMake:
mkdir build && cd build
cmake -DBOARD=raspberry_pi_pico ..
cmake --build .
Make:
make BOARD=raspberry_pi_pico all
Try it
List the device; it appears in Runtime mode:
dfu-util -l
Request a switch to DFU mode:
dfu-util -e
This sends a DETACH request. Since the example is minimal it does not enter a real bootloader; it instead changes the LED to a fast blink as confirmation.