To Mf4 - Convert Blf

Several third-party tools specialize in automotive file conversion:

This is the most common reason. An OEM (Original Equipment Manufacturer) might require suppliers to deliver data in ASAM-compliant formats. If a supplier logs data using a Vector GL logger (BLF), but the OEM uses ETAS or MATLAB for analysis, the file must be converted to MF4 to be readable by the recipient's toolchain.

MF4 distinguishes between signal channels (continuous, like wheel speed) and event channels (discrete, like a DTC trigger). The converter must correctly map BLF's generic message stream into these categories.

rpm_signal = Signal( samples=np.array(rpm_values), timestamps=np.array(rpm_timestamps), name="EngineRPM", unit="rpm", conversion=None # Add conversion factor if needed )

% Convert to timetable format (optional) canTT = canLog.timetable;

MF4 is the fourth version of the standard. ASAM (Association for Standardization of Automation and Measuring Systems) created this open standard to ensure interoperability between different measurement tools.

BLF logs often include timestamps from different clock domains (CAN controller clock vs. system clock). MF4 supports multiple master clocks and time channels. A good conversion realigns these into a unified, high-resolution nanosecond timeline.