Standard Data Structures in the Generated Code

By default, signal lines, block parameters, states, and other model data appear in the generated code as fields of standard structures. For general information, seeHow Generated Code Stores Internal Signal, State, and Parameter Data(Simulink Coder).

The table shows some common data structures in the generated code. The name of the structure type and, if applicable, structure variable in the code that you generate from a model depends on the model settings. Regardless of the settings, the name of the structure type in the code contains the short name from the结构类型的短名称column in the table.

Data Structures Generated for a Model

结构类型的短名称	Data Represented in the Structure
`ExtU`	Data from rootInportblocks
`ExtY`	Data from rootOutportblocks
`B`	Block output signals
`ConstB`	Block outputs that have constant values
`P`	Block parameters
`ConstP`	Constant parameters
`DW`	Discrete block states
`XDis`	Status of enabled subsystems

For additional structures, seeSystem-generated identifiers(Simulink Coder).

You can exclude data from appearing in these structures by using:

Direct application of storage classes. For example, you can use storage classes to represent signals, tunable parameters, and states as individual global variables. For more information, seeApply Storage Classes to Individual Signal, State, and Parameter Data Elements.
Configuration parameters, such as those on theOptimizationpane in the Configuration Parameters dialog box. You can adjust these configuration parameters to control the default representation of data. For more information, seeModel Configuration Parameters: Code Generation Optimization(Simulink Coder).

控制水资源teristics of Data Structures (Embedded Coder)

To control the characteristics of the standard data structures, use the information in the table.

Name	How to Change Name
Structure types	Specify a naming rule to use for the types. Set a value forConfiguration Parameters>Global types.
Global structure variables	Specify a naming rule withConfiguration Parameters>Global variables.
Names of structure fields	By default, the name of each structure field derives from the name of the data item in the model (for example, the name of a block state, which you specify by using theState nameblock parameter). Specify a naming rule withConfiguration Parameters>Field name of global types.
Data types of structure fields	Use`Simulink.AliasType`objects and data type replacement to rename primitive types for the corresponding data items in the model. SeeControl Data Type Names in Generated Code.

For more information about configuration parameters that control names and other identifiers in the generated code, seeCustomize Generated Identifiers.

Standard Data Structures in the Generated Code

控制水资源teristics of Data Structures (Embedded Coder)

See Also

Related Topics

Embedded Coder Documentation

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