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MiraLink firmware v0.42

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@LeParfait271 LeParfait271 released this 14 Aug 21:57
· 23 commits to main since this release
v0.42
e6d2c44

MiraLink Pico 2 W firmware 0.42

Developer: MaruChiwa

Release date: 2026-08-14

This directory contains the clean-room 0.42 manual-test candidate built for
Raspberry Pi Pico 2 W. No build or release command flashes a board
automatically.

What 0.42 changes

  • Keeps the 0.41 passive remembered-controller policy and foreground page-scan
    rearm after a HID link closes.
  • Fixes the local-idle resume path so a configuration commit does not call
    BTstack directly while TinyUSB dispatches the USB report.
  • Queues the same bounded page-scan recovery for bluetooth::poll(), which
    reapplies scan parameters and forces the connectable 0 -> 1 transition.
  • Keeps protocol version 1, HID-only USB, USB Audio-disabled behavior,
    WebHID safeguards, desktop-only scope and manual flashing unchanged.

Validation completed before packaging

  • The Pico 2 W Release cross-build passed with Pico SDK 2.3.0 and Arm GNU
    Toolchain 15.2.1.
  • Picotool identifies MiraLink 0.42, pico2_w, RP2350 ARM Secure,
    rp2350-arm-s, binary range 0x10000000..0x100ac294; extra security is not
    enabled.
  • The idle-resume policy assertions are present in the core-test source. The
    Windows native miralink-core-tests.exe was deliberately not run.
  • The artifacts below are copied from the frozen build outputs and their
    SHA-256 values are recorded in SHA256SUMS.txt.

Artifacts

File Bytes SHA-256
miralink_pico_firmware.uf2 1,411,072 AB734548F183B85EA3ED91AD1E7AF24F1203DADFACFCB2E66F2AB3B4044EE060
miralink_pico_firmware.elf 4,500,432 BA5F39F483D6AE1EB4A259D23D97463AA94D6B3A29F376323052E64C64CF60B0
miralink_pico_firmware.bin 705,172 5912C1683BAD074FD34B53761DE8483AD28F27C0B71C0A3ECEA8276F03F86714
miralink_pico_firmware.hex 1,983,532 6A94F12F6FE2A910DB249D52A7312E1876DED4D7295BCCE1F8CC6FE5897E4640

Hardware boundary

Firmware 0.42 has not been flashed or tested on real hardware. The
manual 0.40 test proved USB/radio/flash diagnostics after a Pico restart but
the remembered DualSense stayed offline after controller power-off and Pico
restart. The 0.41 close-rearm and 0.42 idle-resume corrections are source and
build evidence only. Audio streaming remains absent.

Discriminating manual test

  1. Flash only miralink_pico_firmware.uf2 manually in BOOTSEL mode.
  2. Pair the DualSense once if necessary and configure a short local inactivity
    timeout.
  3. Let the HID link enter local idle suspension, then commit a configuration
    with the inactivity timeout disabled. Do not open a new pairing window.
  4. Press PS only and confirm passive reconnect, one Windows controller and
    resumed input without re-pairing.
  5. Repeat after Pico restart and after one abrupt controller power loss. Keep
    the full log if any attempt fails; never erase the remembered key
    automatically.

The test separates the idle-resume path from ordinary pairing. A build, hash or
picotool inspection does not prove this behavior.

DS5Dongle baseline

Indicator DS5Dongle v0.7.2-hotfix MiraLink 0.41 candidate MiraLink 0.42 candidate
Functional coverage before proof penalty 100% 76% 76%
Weighted proven score 100% 54.4% 54.4%
UF2 relative size, not a quality score 100% 92.8% 92.5%

The 0.42 score remains unchanged until the manual test supplies new physical
evidence. Flashing is manual only.

Assets 7
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