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Map Simulink data store to AUTOSAR variable



mapDataStore(slMap,slBlockHandle,arVarType) maps Simulink® data store memory block slBlockHandle to an AUTOSAR variable of type arVarType for AUTOSAR run-time calibration. AUTOSAR variable types include ArTypedPerInstanceMemory and StaticMemory for classic models and Persistency for adaptive models.

mapDataStore(slMap,slBlockHandle,arVarType,Name,Value) specifies additional properties for an AUTOSAR ArTypedPerInstanceMemory, StaticMemory, or Persistency variable by using one or more Name,Value pair arguments.


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Set AUTOSAR mapping and property information for the Simulink data store memory block Data Store Memory in example model autosar_bsw_sensor1.

hModel = 'autosar_bsw_sensor1';
hBlock = 'autosar_bsw_sensor1/Data Store Memory';

slMap = autosar.api.getSimulinkMapping(hModel);
arMappedTo = getDataStore(slMap,hBlock)
arNvram = getDataStore(slMap,hBlock,'NeedsNVRAMAccess')
arMappedTo =

arNvram =

Input Arguments

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Simulink to AUTOSAR mapping information for a model, previously returned by slMap = autosar.api.getSimulinkMapping(model). model is a handle, character vector, or string scalar representing the model name.

Example: slMap

Name or handle of Simulink data store memory block that you set AUTOSAR mapping information for.

Example: 'autosar_bsw_sensor1/Data Store Memory'

Type of AUTOSAR variable that you want to map the specified Simulink data store to. Valid AUTOSAR variable types include ArTypedPerInstanceMemory, StaticMemory, and Auto for classic models. Valid AUTOSAR variable types include Persistency and Auto for adaptive models. To accept software mapping defaults, specify Auto.

Example: 'StaticMemory'

Name-Value Arguments

Specify optional pairs of arguments as Name1=Value1,...,NameN=ValueN, where Name is the argument name and Value is the corresponding value. Name-value arguments must appear after other arguments, but the order of the pairs does not matter.

Before R2021a, use commas to separate each name and value, and enclose Name in quotes.

Example: 'SwCalibrationAccess','ReadWrite' specifies read-write access to the variable for run-time calibration.

Specify the data element of the persistency port associated with the AUTOSAR adaptive variable. DataElement can be set with Port only.

Example: 'Port','Perport','DataElement','Delement1'

Specify display format for the AUTOSAR variable. AUTOSAR display format specifications control the width and precision display for calibration and measurement data. For more information, see Configure DisplayFormat.

Example: 'DisplayFormat','%2.6f'

Specify whether to include C type qualifier volatile in generated code for the AUTOSAR variable.

Example: 'IsVolatile','true'

Specify whether the AUTOSAR variable requires access to nonvolatile RAM on a processor. Specify true to configure the per-instance memory to be a mirror block for a specific NVRAM block. Specify RestoreAtStart to true to read data from memory at the beginning of a program. Specify StoreAtShutdown to true to write data to memory at the end of a program.

Example: 'NeedsNVRAMAccess','true', 'RestoreAtStart', 'true', 'StoreAtShutdown', 'true'

Specify the persistency port to associate with the AUTOSAR adaptive variable. Port can be set with DataElement only.

Example: 'Port','Perport','DataElement','Delement1'

Optionally specify an AUTOSAR additional native type qualifier to include in generated code for the AUTOSAR variable.

Example: 'Qualifier','test_qualifier'

Specify short name for the AUTOSAR variable. If unspecified, ARXML export automatically generates a short name, which can differ from the data store name.

Example: 'ShortName','LowSetPoint'

Specify a SwAddrMethod name that is valid for the AUTOSAR variable. Code generation uses the SwAddrMethod name to group AUTOSAR variables in a memory section for access by calibration and measurement tools. For a list of valid SwAddrMethod values for the variable, see the Code Mappings editor, Data Stores tab. For more information, see Configure SwAddrMethod.

Example: 'SwAddrMethod','VAR'

Specify how calibration and measurement tools can access the AUTOSAR variable. Valid access values include ReadOnly, ReadWrite, and NotAccessible. For more information, see Configure SwCalibrationAccess.

Example: 'SwCalibrationAccess','ReadWrite'

Specify a headline for the AUTOSAR variable.

Example: 'LongName','Position of Engine Throttle'

Version History

Introduced in R2019a