and communication methods from the ASAP2 description file, and are Via the ASAP1b interface the standard connection of the control units. ASAP2 Lib is a powerful and easy-to-use function library, which you can use for reading and writing standardized ECU description files in ASAP2 format for your . The ASAP2 Tool-Set consists of 6 programs for creating, checking, updating, merging, A2L files that are not standard-conformant can also be read-in using the.

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Shall be used only, if linear or rational functions are not sufficient.

ECU calibration with the ASAP2Library and ASAP2Demo

The code generator writes the ASAP2 file to the build folder. The description contains information about data types, dimensions, record layouts and memory locations of ECU variables. Other MathWorks country sites are not optimized for visits from your location. The data item is not represented in the Asap22 file if any of the following conditions exist:.

For example, in an n-D Lookup Table block with 2 dimensions, the structure must contain only three fields. Specifies position and datatype of the address of the axis’ input value within the record layout.

Standard allows also to write to measurement objects, e. The automated translation of this page is provided by a general purpose third party translator tool. Calibration means the adaption of scalar constants, curves and maps to achieve an appropriate and optimized system behavior. The standard furthermore allows the description of the memory segments in the ECU, including the description of their location inside the address space, the type of memory, and the access method.


The content of a2l-files consists of keywords, parameters, delimiters and comments.

Definition of call to an external function bit or bit DLL for converting calibration object values between their implementation format and physical format. Your personal copy will be syandard to.

Can be used to distinguish between out-of-range warnings and out-of-range error messages, or to allow specific power-users to set calibration values beyond a safe margin. Data objects are used to supply information not contained in the model.

The downloadable archive contains an a2l-file and a referenced transformer-DLL for demonstration purposes. It describes byte alignments, order and position of calibration objects in memory, their rescaling, memory offset and further properties.

Stqndard include the definition of byte alignment, byte order, size and storage of data in the ECU memory. Software sources do standarf have to be shared any longer to allow other parties to tune parameters or change the list of measurable.

Once a new set of parameters has been determined, the next standarv step is to run tests in order to evaluate the effectiveness of the calibration. The function has the following syntax: UNIT supports SI based units described by exponents of the seven base units as well as derived units described by a reference unit and a linear conversion method.


Standatd following table provides a typical interpretation of the data types as used in the automotive industry. In some cases, the use of workspace objects is optional. For example, using ExportedGlobal configures the data item as an unstructured global variable in the generated code.

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Our newsletter informs you when a new standard version is released. If you have been using an earlier release, you can continue to use the ASAP2 objects. Specifies that a right shift operation shall extend the leftmost bit to the left so that the new, shifted number has still the same sign in the two’s complement system. Also, you can use data objects from data classes that are derived from Simulink. This supports function-oriented measurement and calibration. Due to this comprehensive and complete coverage of data related to measurement and calibration, the standard has been globally accepted in the stadard industry and displaced most of the proprietary formats that were formerly used in ztandard automotive industry.

Furthermore, many tools in the Automotive industry relied already on the non-XML format and would have had to be re-written from scratch – an effort etandard was deemed to be unjustified. You can use the Model Data Editor and built-in Simulink data objects to provide the information.

Parameter object to represent a tunable parameter.