Analysis and Introduction to How to Control Variables in Generating Codes

When automatically generating code, the two types of data in the Simulink model are what we need to consider: signals (Signal) and parameters. The signal corresponds to the SIMULINK module connection, and the simulation will generally change; the parameters correspond to the variables set when double-clicking the module, and the simulation will generally remain unchanged. How to control these variables in the generated code implementation? Click on "Reading Original" to download this article Declaration and definition of signals and parameters to get: Model parameter P1 is defined as: int32 p1 = 3; Extern INT32 P1 Model signal mysig defined as: int16 mysig; Extern INT16 MYSIG How to do: use Data Object. Example two 1. Built a simple Simulink model 2. Code generate basic configuration Solver: Clearing long-discrete solution System objective file: Ert.TLC 3. New data objects Open Model Explorer, click on the add of the menu, define the parameter data object P1 in Base Workspace, and make a figure set: In this way, when generating code, the parameter P1 is defined as the data type of INT32, and is declared as extern. And its statement and definition code will write myHDr.h and MySrc.c, respectively. Similarly, new Simulink.Signal is named mysig, set as shown. Its definitions and declarations will default in the model name .c and model name .h: 4. Signal association Right-click on the signal line and associate the signal with the base workspace data object. Parameter K does not need to be manually associated. 5. Generate code Ctrl + b, generate code. As set earlier, the definition of the parameter P1 is as shown in the figure, and it is written to the custom .c.h file: The declaration and definition of signal MySig is shown in the figure, in the model name .c and model name. H file: The default definition of the data in e-coder: Summarize Therefore, you can use the data object (Data Object) to define the expression of the data in the generated code. Read more

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