Is there an example of using Simulink buses with "coder.ceval" to handle structured data?

Is there an example of using Simulink buses with "coder.ceval" to handle structured data?

Answer 1

[MathWorks Support Team]

Attached is an example, named "ceval_struct.zip", of using Simulink buses when passing data to a C function using "coder.ceval".

To run the example:

1. Download and extract "ceval_struct.zip" into its own directory
2. Execute:

>> example

Please note that the bus, "TestBus", is defined in MATLAB in "setup.m", which imports the structure defined in "test_func.h", in the structure named "TestBus".

The expected output of the model is shown below:

Inputs:
a: 1.5
b: [0.1, 0.2, 0.3, 0.4, 0.5]
Outputs:
y[0] = 0.8
y[1] = 1.5
a: -1.5
b: [1, 0.8, 0.6, 0.4, 0.2]

You will see a similar output in the Simulink model, "test_model.slx", when it is opened and simulated.

You may see more regarding "coder.ceval", data type marshaling, and working with Simulink buses and MATLAB function blocks in the following documentation links:

https://www.mathworks.com/help/simulink/ug/incorporate-c-code-using-a-matlab-function-block.html

https://www.mathworks.com/help/coder/ug/mapping-matlab-types-to-cc-types.html

https://www.mathworks.com/help/stateflow/ug/working-with-structures-and-bus-signals-in-matlab-functions.html