Why do I get the error message "The model contains constructs that are unsupported for HDL code generation"?

I am trying to generate HDL code from my Simulink model, but I encounter the following error:

The model contains constructs that are unsupported for HDL code generation.

Answer 1

[MathWorks Support Team]

In order to see details regarding this error message, refer to the HDL Code Generation Check Report which should pop up in a separate browser window within MATLAB. You can also open it by double-clicking on /hdlsrc/modelName/DUTname_report.html.

For example, the underlying error message could be the following:

Found division expression with unsupported Rounding Method for HDL code generation at Function
'divide' (#33554449.10968.11030), line 268, column 16. Supported Rounding Methods include:
"Zero" and "Floor". "Zero" is supported for both signed and unsigned division, whereas,
"Floor" Rounding Method is supported for unsigned division only.

Since the error message refers to MATLAB code inside a MATLAB Function block, you can remedy this by specifying a supported rounding method in the block's properties: