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LibUDS 1.18.0

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@github-actions github-actions released this 22 Jun 14:11
· 219 commits to develop since this release
v1.18.0
cb23b69

UDSLib v1.18.0

Universal Diagnostics Stack for Embedded Systems

What's New

Added

  • ResponseOnEvent (0x86) — completes ISO 14229-1 service coverage (27/27). A stateful event engine: setup (0x01 onDTCStatusChange / 0x03 onChangeOfDataIdentifier) stores an event definition with its serviceToRespondTo; start (0x05) / stop (0x00) / clear (0x06) manage activation; reportActivatedEvents (0x04) lists active events. The application notifies the stack of real-world changes via the new uds_roe_trigger(ctx, event_type, param) API; for each active matching definition the library runs the stored service and emits its response as a 0xC6 message. Event windows expire from uds_process(). Storage is a fixed slot array (UDS_ROE_MAX_EVENTS, default 4; set to 0 to compile the feature out). onTimerInterrupt (0x02) and onComparisonOfValues (0x07) return NRC 0x12 (deferred); stored events are volatile (no NVM persistence yet).

Test Results

All Tests Passed

  • Total Tests: 51
  • Passed: 51
  • Failed: 0

Build Information

  • Version: 1.18.0
  • Build Date: 2026-06-22 14:11:30 UTC
  • Compliance: ISO 14229-1 (UDS)
  • Platform Support: Bare Metal, FreeRTOS, Zephyr, Linux, Windows

Supported Services

UDSLib v1.18.0 implements 16 ISO 14229-1 services:

Service Description SID
Diagnostic Session Control Session management 0x10
ECU Reset Reset operations 0x11
Clear Diagnostic Information DTC clearing 0x14
Read DTC Information DTC reporting 0x19
Read Data By Identifier Data reading 0x22
Read Memory By Address Memory access 0x23
Security Access Seed/Key exchange 0x27
Communication Control TX/RX control 0x28
Authentication Certificate exchange 0x29
Write Data By Identifier Data writing 0x2E
Routine Control Routine execution 0x31
Request Download OTA init 0x34
Transfer Data Block streaming 0x36
Request Transfer Exit OTA completion 0x37
Write Memory By Address Memory writing 0x3D
Tester Present Keep-alive 0x3E
Control DTC Setting DTC ON/OFF 0x85

Installation

Download Pre-built Binaries

Download the attached artifacts:

  • uds_host_sim - Host-based ECU simulator
  • unit_tests - Complete test suite

Build from Source

git clone https://github.com/w1ne/udslib.git
cd udslib
git checkout v1.18.0
mkdir build && cd build
cmake ..
make
ctest

Documentation

Licensing

  • Community: PolyForm Noncommercial 1.0.0 (noncommercial use). See LICENSE.
  • Commercial: 5,000 EUR for production/commercial use, includes integration + 1 year support.
  • Contact: andrii@shylenko.com for commercial terms and support.

Report Issues

Found a bug? Open an issue

Full Changelog

See CHANGELOG.md for complete version history.

Code Coverage

Line Coverage: 86.4% · Function Coverage: 98.4%

Summary coverage rate:
lines......: 86.4% (1143 of 1323 lines)
functions..: 98.4% (62 of 63 functions)
branches...: no data found

Full coverage report available in release artifacts.

Assets 4
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