Generation of C code from simulink

mesh agrawal asked: 2021-12-28 simulink , filter , code generation

Learn how to generate efficient C code from Simulink models! This resource explores Simulink C code generation techniques, offering valuable insights. Start opt

Expert Answer

Kshitij Singh answered . 2025-08-18 12:52:53

Based on the error message, Hd (a dsp.IIRFilter) contains a member that is a handle class, which let multiple names refer to the same object.

While handle classes are supported for code generation, as of R2019a, they are not yet supported as inputs or outputs (or data members of inputs or outputs) to entry-point functions (the function name you tell MATLAB Coder to generate code for).

We've made an internal note of your request so we can look at lifting that limitation in the future.

For now, a workaround is to pass non-handle data as output.

Instead of the filter as output, the function could take in input data and output the result of the filter on that data.

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