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v1.9.0 — SID 0x2A + SID 0x35 + SID 0x2F + Wireshark dissector

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@Xaloqi Xaloqi released this 26 Jun 11:24
v1.9.0
6b2d663

What's new in v1.9.0

Added

  • SID 0x2A — ReadDataByPeriodicIdentifier (ISO 14229-1 §11.5).
    The ECU now pushes DID data autonomously at tester-configured rates without
    waiting for repeated requests. One-time subscription from the tester; the ECU
    streams [0x6A, periodicId, dataRecord...] frames until session returns to
    Default or the tester sends transmissionMode = stopSending (0x04).

    • New module core/uds_periodic.h/.c — stateless tick-driven scheduler.
      Static subscription table s_subs[UDS_PERIODIC_MAX_SUBSCRIPTIONS] (default 8).
      Three push rates: SLOW (1000 ms), MEDIUM (100 ms), FAST (10 ms).
      uds_periodic_tick_1ms() advances all counters; uds_periodic_pop_due() returns
      at most one ready frame per call. No malloc/free anywhere.
    • New core/uds_services/service_0x2A.c — subscription handler.
      Validates transmissionMode (NRC 0x12 for 0x00/0x05+), looks up each 0xF2xx DID
      via the 5-step safety chain, checks DID_ACCESS_READ, and registers or removes
      subscriptions. Positive response: [0x6A] (1 byte). stopSending is a no-op if
      the ID was not subscribed.
    • Integration — all 12 examples and platform/freertos/freertos_platform_api.c
      updated with uds_periodic_tick_1ms() + drain loop and session-change callback
      that calls uds_periodic_cancel_all() on return to Default session.
    • 26 new unit tests — scheduler lifecycle (TC-PERIODIC-001–014) and handler
      branches (TC-0x2A-001–012). Closes #48.

  • SID 0x35 RequestUpload — ECU-to-tester data readback over the existing 0x36/0x37
    transfer state machine. Symmetric counterpart to 0x34 RequestDownload. Supports
    calibration data readback, NVM log extraction, and flash image verification readout.
    Requires Programming session + Level 1 security unlock. read_cb = NULL is
    backward-compatible and returns NRC 0x22. Closes #46.

  • SID 0x2F InputOutputControlByIdentifier — actuator and I/O control for EOL and
    bench testing. returnControlToECU / resetToDefault / freezeCurrentState /
    shortTermAdjustment (CR-010). Closes #47.

  • Wireshark Lua dissector (extras/wireshark/eds.lua) — UDS service decode (all
    17 SIDs), full NRC table, ISO-TP PCI frame types, DoIP payload types
    (0x0005–0x0008, 0x8001–0x8003). Closes #44.

Changed

  • cmake/eds_service_sources.cmake (new file) — canonical list of all 17 UDS
    service handler source files. All 20 example CMakeLists.txt files now include()
    this file. Adding a new SID requires one line here only.

Full changelog: CHANGELOG.md

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