Calibration and Measurement

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 containing description format of the internal ECU variables, or export a Calibration Data Format (CDF) file containing 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 (Since R2021b)

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 compu 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 (Since R2021a)
`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 (Since R2021a)
`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
Add custom data elements to an ASAP2 file.
Customize Using Base Files
Use the base class and files to customize the ASAP2 fields Simulink model.
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
ASAP2 standard defines the description format of the internal electronic control unit (ECU) variables used in measurement and calibration and ASAM CDF standard defines the data for storing the ECU parameter values and the associated meta data.

Related Information

Featured Examples

Generate ASAP2 and CDF Data Definition Files

Example to demo the generation of ASAP2 file.

Open Live Script

Customize an ASAP2 File

Example to demo customization of ASAP2 file.

Open Live Script

Create and Add Custom Variant Coding

Export a custom variant characteristic object, export a custom variant criterion object, and generate variant coding section in the A2L file.

Open Live Script