Calibration and Measurement

R2026b

Tune parameters and measure signal data by using ASAP2 and CDF calibration files

Calibration is the process of tuning a device to meet accuracy and consistency. Export an ASAP2 file that contains description format of the internal ECU variables, or export a Calibration Data Format (CDF) file that contains the information about parameters in a machine-readable format. Use the ASAP2 and CDF files to calibrate an application on the measuring device.

Tools

Generate Calibration Files

Generate ASAP2 and CDF files

Classes

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ASAP2 Customization

`coder.asap2.AxisInfo`	Set values for axis to describe lookup table (Since R2022b)
`coder.asap2.Characteristic`	Create characteristic object (Since R2022b)
`coder.asap2.CompuMethod`	Create computation method object (Since R2022b)
`coder.asap2.Function`	Create function object (Since R2022b)
`coder.asap2.Group`	Create group object (Since R2023b)
`coder.asap2.Measurement`	Create measurement object (Since R2022b)
`coder.asap2.RecordLayout`	Create record layout object (Since R2023a)
`coder.asap2.UserCustomizeBase`	Customize project and module settings (Since R2022b)
`coder.asap2.VarCharacteristic`	Create variant parameter (Since R2025a)
`coder.asap2.VarCriterion`	Create variant criterion (Since R2025a)

Functions

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ASAP2 and CDF Interface

`coder.asap2.export`	Generate ASAP2 (A2L) file according to ASAM MCD-2 MC standards
`coder.asap2.getEcuDescriptions`	ECU description object for model (Since R2022b)
`coder.asap2.merge`	Merge data elements from multiple ASAP2 (A2L) files (Since R2023a)
`coder.cdf.export`	Generate CDF (Calibration Data Format) file according to ASAM AE CDF standards
`rtw.asap2SetAddress`	Set ECU address in A2L file

Topics

Get Started with Calibration and Measurement

Introduction to Calibration and Measurement
Brief about the calibration and measurement steps.
Introduction to ASAP2 File
Introduction to ASAP2 file.

ASAP2 and CDF Interface

Generate ASAP2 and CDF Calibration Files
Generate ASAP2 and CDF files according to ASAM MCD-2 MC and ASAM AE CDF standards respectively.
Customize Generated ASAP2 File
Customize the ASAP2 file generated from a Simulink^® model.
Create and Add Custom Data Elements
Create, add, modify, and remove custom characteristics, measurements, computation methods, groups, and other data elements in a generated ASAP2 file.
Customize Using Base Files
Use the base class and files to customize the ASAP2 fields.
Generate Variant Coding Section in ASAP2 File
This example shows how to generate a variant coding section in an ASAP2 (A2L) file.
Configure Model Data Elements for ASAP2 File Generation
Set measurement and calibration properties for model data elements.
Calibrate Generated Code and Monitor Signals
Generate XCP external mode target application and ASAP2 file that describes the XCP server configuration.
Frequently Asked Questions About ASAP2 File Generation
The ASAP2 standard defines the description format of the internal electronic control unit (ECU) variables used in measurement and calibration.