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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An a2l-file contains one project PROJECTwhich describes all calibration and measurement data that belong to one calibration project.

Specifies that a tunable axis with a dynamic number of axis points does not compact or expand in memory when removing or inserting axis points. At the beginning of an a2L-file, the version number keyword: If the asa;2 address attribute is known before code generation, it can be defined in the data item or data object.

Every change to parameters or the list of measureable variables required modifications in the source code, re-compilation and flashing of the ECU. They are described by input-output value pairs, i. The standard defines extensive support for lookup tables up to 5 dimensions with static or calculated axis points and static, measured, or calculated calibration parameters.

These delimiters prevent ambiguous interpretation. Create table and axis values. If you have been using an earlier release, you can continue to use the ASAP2 objects. The automated translation of this page is provided by a general purpose third party translator tool. A number or bit-pattern is assigned to a string. To generate ASAP2 files for referenced models, select ASAP2 file generation for the top model and for stadard referenced model in the reference hierarchy.


Most of the production code generators for embedded software automatically generate a2l-files. Description of a variant criterion. You can use the Model Data Editor and built-in Simulink data objects to provide the information. This method is equivalent to enumerated types in the C programming language. Generic Real-Time Target grt.

Reference to an ECU-internal variable, which selects the active variant by its aap2. Type definition of a calibration object.

ECU calibration with the ASAP2Library and ASAP2Demo

The general syntax is as follows:. Used to split up the value range standarv the measurement to a numerical part and a verbal part.

Bit masks and bit operations can be applied to the measurement. Specifies position and datatype of the offset value within the record layout. Supported conversion methods are:. Translated by Mouseover text to see original.

Other properties describe the display format in C-printf notation and the unit. Without standardization, the creation and maintenance of such description files could easily become a major time and cost factor of the overall development process. Parameter data object with a non- Auto storage class. Description of one memory segment of the ECU.

Single line comments start with a double forward-slash i. The latter contains status information about the numerical part such as providing an error or describing the quality of the measurement. ASAM MCD-2 MC was created to overcome those problems of wasting time and money to deal with various description formats that more or less contain the same data. In some cases, the use of workspace objects is optional. Using XML would have otherwise increased the file size by approximately five times, which would have caused severe performance issues with tools that process such files.


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Furthermore, it is common practice to place the interface description i. The calibration of parameters is an essential part of ECU software development. Without standardization, the OEM or Tier 1 would be required to maintain several data description files in parallel or else continuously converting the files between different formats to ensure that everyone in the development process used the right format.

File Section Contents of asap2main. Data objects are used to supply information not contained in the model. Specifies general parameters of a module i. Parameters and aggregated keywords may be mandatory or optional and may have a multiplicity. ASAP2 is a non-object-oriented description of the data used for measurement, calibration, and diagnostic systems.

List of parametric values that are used to configure the device driver for communication between the MC-system and ECU. Don’t have an account?