set

Set property for data element

Since R2022b

Syntax

set(descObj,category,name,Property = value)

Description

set(descObj,category,name,Property = value) sets the value for the property Property, of the name in the category present in ECU description.

Examples

Customize an ASAP2 File

Add, update, filter, find, and remove ECU descriptions in an ASAP2 file.

Open and Build Example Model

Open the example model ASAP2Demo

open_system("ASAP2Demo");

Build the model.

slbuild("ASAP2Demo");

### Searching for referenced models in model 'ASAP2Demo'.
### Found 1 model reference targets to update.
### Starting serial model reference code generation build.
### Successfully updated the model reference code generation target for: ASAP2DemoModelRef
### Starting build procedure for: ASAP2Demo
### Successful completion of build procedure for: ASAP2Demo

Build Summary

Model reference code generation targets:

Model              Build Reason                                 Status                        Build Duration
============================================================================================================
ASAP2DemoModelRef  Target (ASAP2DemoModelRef.c) did not exist.  Code generated and compiled.  0h 0m 28.438s 

Top model targets:

Model      Build Reason                                         Status                        Build Duration
============================================================================================================
ASAP2Demo  Information cache folder or artifacts were missing.  Code generated and compiled.  0h 0m 43.931s 

2 of 2 models built (0 models already up to date)
Build duration: 0h 1m 15.078s

Create the ECU description object for the model.

descObj = coder.asap2.getEcuDescriptions("ASAP2Demo");

Get the list of available computation methods in the description object.

find(descObj,"CompuMethod")

ans = 1x10 string
    "ASAP2DemoModelRef_CM_double"    "ASAP2DemoModelRef_CM_int16_rpm"    "ASAP2Demo_CM_double"    "ASAP2Demo_CM_double_m_per__s_2_"    "ASAP2Demo_CM_double_rpm"    "ASAP2Demo_CM_int32"    "ASAP2Demo_CM_single"    "ASAP2Demo_CM_single_m_per__s_2_"    "ASAP2Demo_CM_single_rpm"    "ASAP2Demo_CM_uint8"

Filter the computation methods and get a list of computation methods that use rpm as the unit.

find(descObj,"CompuMethod",Units='rpm')

ans = 1x3 string
    "ASAP2DemoModelRef_CM_int16_rpm"    "ASAP2Demo_CM_double_rpm"    "ASAP2Demo_CM_single_rpm"

Create and Add Custom Computation Method

To add a new computation method to the ASAP2 file, create a custom computation method.

CompuMethod_1 = coder.asap2.CompuMethod;
CompuMethod_1.Name = 'CompuMethod_1';
CompuMethod_1.ConversionType = 'LINEAR';
CompuMethod_1.Coefficients = [2 3];
CompuMethod_1.LongIdentifier = 'longIdentifierTest';
CompuMethod_1.Format = '%2.3';
CompuMethod_1.Units = 's';

Add the custom computation method to the ECU description object.

add(descObj,CompuMethod_1);

Get the properties of the newly added computation method.

get(descObj,"CompuMethod","CompuMethod_1")

ans = 
  CompuMethod with properties:

               Name: 'CompuMethod_1'
     LongIdentifier: 'longIdentifierTest'
             Format: '%2.3'
              Units: 's'
       Coefficients: [2 3]
     ConversionType: 'LINEAR'
    CompuVTabValues: [1x1 struct]
         CustomData: ""

To modify a property of the computation method, use set function. Update the ConversionType field of the computation method to TAB_VERB and define the CompuVTabValues.

set(descObj,"CompuMethod","CompuMethod_1",ConversionType="TAB_VERB");
set(descObj,"CompuMethod","CompuMethod_1",CompuVTabValues = struct('Literals',["false" "true"],'Values',[0 1]));

Get the properties to see the modified fields.

modifiedprop = get(descObj,"CompuMethod","CompuMethod_1")

modifiedprop = 
  CompuMethod with properties:

               Name: 'CompuMethod_1'
     LongIdentifier: 'longIdentifierTest'
             Format: '%2.3'
              Units: 's'
       Coefficients: [2 3]
     ConversionType: "TAB_VERB"
    CompuVTabValues: [1x1 struct]
         CustomData: ""

modifiedprop.CompuVTabValues

ans = struct with fields:
    Literals: ["false"    "true"]
      Values: [0 1]

Generate the ASAP2 file using the updated ECU description object and verify that the ASAP2 file contains the computation method CompuMethod_1.

coder.asap2.export("ASAP2Demo",CustomEcuDescriptions=descObj);

Following Characteristics or Measurements with unsupported data types are not exported in ASAP2 file. "ASAP2Demo_DW.ASAP2DemoModelRef_InstanceData"

Delete Computation Method

Remove the newly added computation method from the description object.

delete(descObj,"CompuMethod","CompuMethod_1");

Create and Add Custom Characteristic

To add a new characteristic to the ASAP2 file, create a custom characteristic.

Parameter_1 = coder.asap2.Characteristic;
Parameter_1.Name = 'Custom_parameter1';
Parameter_1.LongIdentifier = 'longIdentifierParam';
Parameter_1.UpperLimit = 255;
Parameter_1.LowerLimit = 0;

Add the custom characteristic to the ECU description object.

add(descObj,Parameter_1);

Get the properties of the newly added characteristic.

get(descObj,"Characteristic","Custom_parameter1")

ans = 
  Characteristic with properties:

                   Name: 'Custom_parameter1'
         LongIdentifier: 'longIdentifierParam'
                   Type: 'VALUE'
             EcuAddress: '0x0000'
        CompuMethodName: 'NO_COMPU_METHOD'
             LowerLimit: 0
             UpperLimit: 255
      EcuAddressComment: ""
    EcuAddressExtension: []
      CalibrationAccess: 'Calibration'
      DisplayIdentifier: ""
                 Format: ""
                BitMask: []
               AxisInfo: []
           RecordLayout: ""
             Dimensions: []
                 Export: 1
             MaxRefresh: [1x1 struct]
             SymbolLink: [1x1 struct]
             CustomData: ""

To modify a property of the characteristic, use set function. Update the UpperLimit field of the characteristic.

set(descObj,"Characteristic","Custom_parameter1",UpperLimit=128)

Generate the ASAP2 file using the updated ECU description object and verify that the ASAP2 file contains the characteristic Custom_parameter1.

coder.asap2.export("ASAP2Demo",CustomEcuDescriptions=descObj);

Following Characteristics or Measurements with unsupported data types are not exported in ASAP2 file. "ASAP2Demo_DW.ASAP2DemoModelRef_InstanceData"

Remove the newly added characteristic from the description object.

delete(descObj,"Characteristic","Custom_parameter1");

Create and Add Custom Measurement

To add a new measurement to the ASAP2 file, create a custom measurement.

Signal_1 = coder.asap2.Measurement;
Signal_1.Name = 'Custom_signal1';
Signal_1.LongIdentifier = 'longIdentifierSignal';
Signal_1.UpperLimit = 255;
Signal_1.LowerLimit = 0;

Add the custom measurement to the ECU description object.

add(descObj,Signal_1);

Get the properties of the newly added measurement.

get(descObj,"Measurement","Custom_signal1")

ans = 
  Measurement with properties:

                   Name: 'Custom_signal1'
         LongIdentifier: 'longIdentifierSignal'
               DataType: 'UBYTE'
             EcuAddress: '0x0000'
        CompuMethodName: ""
             LowerLimit: 0
             UpperLimit: 255
                 Raster: [1x1 struct]
      EcuAddressComment: ""
    EcuAddressExtension: []
      CalibrationAccess: 'NoCalibration'
      DisplayIdentifier: ""
                 Format: ""
                BitMask: []
             Dimensions: []
                 Export: 1
               MaskData: [1x1 struct]
             MaxRefresh: [1x1 struct]
             SymbolLink: [1x1 struct]
             CustomData: ""

To modify a property of the measurement, use set function. Update the CalibrationAccess field of the measurement.

set(descObj,"Measurement","Custom_signal1",CalibrationAccess='Calibration')

Generate the ASAP2 file using the updated ECU description object and verify that the ASAP2 file contains the measurement with name Custom_signal1.

coder.asap2.export("ASAP2Demo",CustomEcuDescriptions=descObj);

Following Characteristics or Measurements with unsupported data types are not exported in ASAP2 file. "ASAP2Demo_DW.ASAP2DemoModelRef_InstanceData"

Remove the newly added measurement from the description object.

delete(descObj,"Measurement","Custom_signal1");

Create and Add Lookup Table Parameter

Add a lookup table parameter.

LUT_Parameter = coder.asap2.Characteristic;
LUT_Parameter.Name = "custom_lookup_table";
LUT_Parameter.Type = "MAP";

Create and add axis information to the parameter.

axis_data = coder.asap2.AxisInfo;
axis_data(1).Name = 'BP3';
axis_data(2).Name = 'Bp4';
axis_data(1).CompuMethodName = 'ASAP2Demo_CM_double';
axis_data(2).CompuMethodName = 'ASAP2Demo_CM_double';
axis_data(1).MaxAxisPoints = '3';
axis_data(2).MaxAxisPoints = '3';
axis_data(1).AxisType = 'STD_AXIS';
axis_data(2).AxisType = 'STD_AXIS';
LUT_Parameter.AxisInfo = axis_data;

Add the lookup table parameter to the description object.

add(descObj,LUT_Parameter)

Generate the ASAP2 file using the updated ECU description object and verify that the ASAP2 file contains the lookup table parameter custom_lookup_table.

coder.asap2.export("ASAP2Demo",CustomEcuDescriptions=descObj);

Following Characteristics or Measurements with unsupported data types are not exported in ASAP2 file. "ASAP2Demo_DW.ASAP2DemoModelRef_InstanceData"

Input Arguments

descObj — ECU description object

getEcuDescriptions object

Information object created by using the coder.asap2.getEcuDescriptions function containing the ASAP2 properties of a given model.

Example: descObj = coder.asap2.getEcuDescriptions(<modelName>)

category — Category in ECU descriptions

AxisPoint | Characteristic | CompuMethod | Function | Measurement

Specify the category available in the information object to set the ASAP2 element.

Example: Characteristic

name — Name from the category

char vector | string scalar

Specify the name available in the specified category to set value to a property of the ASAP2 element.

Example: CompuMethod1

Example: Parameter_p1

Property — Name of the property

char vector | string scalar

Specify a value for the property in the available names from the specified category of the ASAP2 elements.

Example: descObj.set("CompuMethod","CompuMethod_CM1", Units='custom_units')

Example: descObj.set("Characteristic","Parameter_P1", DisplayIdentifier='ParamGain')

Version History

Introduced in R2022b