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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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