Data definition

Placement of global variable definitions

Model Configuration Pane: Code Generation / Code Placement

Description

Specify where to place definitions of global variables.

Dependencies

This parameter enables Data definition filename.

Settings

Auto (default) | Data defined in source file | Data defined in a single separate source file

Default: Auto

Auto: Lets the code generator determine where the definitions should be located.
Data defined in source file: Places definitions in .c source files where functions are located. The code generator places the definitions in one or more function .c files, depending on the number of function source files and the file partitioning previously selected in the Simulink^® model.
Data defined in a single separate source file: Places definitions in the source file specified in the Data definition filename field. The code generator organizes and formats the definitions based on the data source template specified by the Source file (*.c) template parameter in the data section of the Templates pane.

Limitation

This parameter applies to data with storage classes except these:

ExportedGlobal
ImportedExtern
ImportedExternPointer
BitField
FileScope
Localizable
Struct
CompilerFlag

In the Embedded Coder^® Dictionary, the Header File value for unsupported storage classes is empty. You cannot specify default file placement for unsupported storage classes.

Recommended Settings

Application	Setting
Debugging	No impact
Traceability	A valid value
Efficiency	No impact
Safety precaution	No impact

Programmatic Use

Parameter: GlobalDataDefinition

Type: character vector

Value: 'Auto' | 'InSourceFile' | 'InSeparateSourceFile'

Default: 'Auto'

Version History

Introduced before R2006a