v2.8.1 — Link ECU Parser Fix

Bug Fix

Corrected Link ECU binary parsing across all format variants (.llg, .llg5, .llgx)

The previous Link parser used a byte-scan heuristic for channel discovery that had several critical issues:

• Produced false-positive channel detections
• Read each 8-byte data pair as (value, time) when the actual format is (time, value)
• Silently skipped the first 8 bytes of every channel's data section
• Filtered out pre-trigger samples with negative times
• Resulted in ~24-hour time ranges and all-zero values on every file

The parser has been rewritten around proper block-based parsing, walking the file's <3-byte marker> block framing to correctly identify channel definitions and read data streams.

Before: Time range 0–89,477s (24.8 hours), all-zero values on every file.
After: Physically plausible time ranges (21–52s) with real RPM, MAP, lambda, and other channel values.

Testing

• Added plausibility checks for Link timing and channel values to catch regressions
• Verified against all example Link files in the repo and additional .llgx files from real G4X hardware

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Installation

macOS

1. Download the appropriate .dmg file for your Mac:
   • Intel Mac: ultralog-macos-intel.dmg
   • Apple Silicon (M1/M2/M3/M4): ultralog-macos-arm64.dmg
2. Open the DMG and drag UltraLog to your Applications folder
3. On first run, right-click the app and select "Open" to bypass Gatekeeper

Windows

1. Download ultralog-windows.zip
2. Extract the zip file
3. Run ultralog-windows.exe

Linux

1. Download ultralog-linux.tar.gz
2. Extract: tar -xzf ultralog-linux.tar.gz
3. Run: ./ultralog-linux

Full Changelog: v2.8.0...v2.8.1