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feat(midi2): derive function blocks from the GTB descriptor
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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) <[email protected]>
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Adds two Group Terminal Blocks (output and input) with names and
per-direction endpoint association, plus an explicit endpoint name.
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- examples/device/midi2_device/src/main.c: drop the unreachable
`return 0;` after the `while(1)` superloop. IAR with
--warnings_are_errors rejects Pe111 (statement is unreachable);
C99 lets `int main` fall off the end, matching midi_test.
- examples/host/msc_file_explorer_freertos/skip.txt: skip
stm32h7s3nucleo. The board has only 64 KB on-chip FLASH and the
FreeRTOS + FatFS host MSC explorer now overflows by ~248 bytes
after the async control queue refactor.
Co-Authored-By: Claude Opus 4.7 <[email protected]>
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iccarm rejects -Wno-type-limits, breaking the hil-hfp-iar CI matrix
(stm32l412nucleo, stm32f746disco, lpcxpresso43s67). Apply the same
CMAKE_C_COMPILER_ID guard used in hw/bsp/family_support.cmake so IAR
builds skip the flag without losing the GCC warning suppression.
Co-Authored-By: Claude Opus 4.7 <[email protected]>
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Signed-off-by: HiFiPhile <[email protected]>
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Default RX/TX buffers to EPSIZE for both device and host. Document
drain-in-loop on ump_read; example device callback drains until
empty.
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Signed-off-by: HiFiPhile <[email protected]>
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stm32h573i_dk, stm32n657nucleo and stm32n6570dk have the same
pre-existing uninitialized io_ctx.GetTick in their board.h that we
already skip on stm32h7s3nucleo. Trips with Make+LTO; CMake passes.
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arm-clang fails with -Werror=unused-function; arm-gcc was silently
omitting it via LTO. The helper was never called.
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Make build was missing midi2_device.c/midi2_host.c from
src/tinyusb.mk. Skip stm32h7s3nucleo board which exposes a
pre-existing uninitialized warning in its board.h (board_init2)
under Make+LTO.
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Restrict midi2_host build to MCUs with USB host support (cloned from
midi_rx) and skip SAMD11 from midi2_device (ROM overflow on link).
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Remove the rp2040-only guard; the example now follows the audio_test
pattern (only Espressif uses its own build system). Add CMakePresets.json
and generic product strings.
The runtime fallback picks the path that matches the host state, per
message, mirroring the idea behind the UAC examples:
Alt 0 USB-MIDI 1.0 32-bit Event Packets (packet_write)
Alt 1 + MIDI 1.0 negotiated UMP MT 0x2 (ump_write)
Alt 1 + MIDI 2.0 negotiated UMP MT 0x4 (ump_write)
Build-tested on rp2040, rp2350, stm32f0/f1/f2/f3/f4/f7/g0/g4/h5/h7/l0/l4/u0/u5/wb/c0,
samd2x_l2x, samd5x_e5x, same7x, nrf, imxrt, lpc17, lpc55, mcx, ra,
da1469x, efm32.
Ref #3571
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- Use UINT32_C(1) instead of 1u for bit shifts >= 16 in
midi2_device.c to avoid shift-count-overflow on 16-bit
platforms (MSP430)
- Add Makefiles for midi2_device and midi2_host examples with
family guard (skip if FAMILY != rp2040). These examples
require Pico SDK and board-specific hardware
- Restrict midi2_device CMakeLists.txt to rp2040 family
(matching midi2_host)
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Add Device example that plays Twinkle Twinkle Little Star using native
UMP format. Demonstrates all MIDI 2.0 Channel Voice message types:
16-bit velocity, 32-bit CC, 32-bit pitch bend, 32-bit channel/poly
pressure, per-note management, program change with bank select, and
JR timestamps.
USB descriptor exposes both Alt Setting 0 (MIDI 1.0) and Alt Setting 1
(UMP) per USB-MIDI 2.0 specification.
Tested on: Raspberry Pi Pico (RP2040), Linux (ALSA), Windows (MIDI
Services)
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