变体代码生成

Illustrates how code compile and startup variant activation time can be used together in two nested variant subsystems.

Generate a C code that contains all the active and inactive values of variant parameters. The values are enclosed in preprocessor conditionals #if and #elif that enables you to compile the code conditionally based on the condition that evaluates to true.

Generate an executable that runs for different set of variant parameter values without needing to recompile the code for each set of values.

You can use enumerated types to improve code readability of variant control values in variant parameters. Simulink 枚举 improve readability because enumerated types of variant controls values are represented as meaningful names instead of integers in the generated code.

Use Simulink.Parameter variables to generate a code that imports variant parameter values from your existing code. Importing variant parameter values allows you to reuse the values that your existing code defines. You can then integrate and compile the generated and existing code into a single executable. You can choose to generate a code that imports variant parameter values at the beginning of code compile, simulation-loop, or model startup phases of simulation and code generation workflows based on the activation time you specify. For more information, see Activate Variant During Different Stages of Simulation and Code Generation Workflow.