Functions Supported for HDL Code Generation
You can generate efficient HDL code for a subset of MATLAB® built-in functions and toolbox functions that you call from MATLAB code.
Supported MATLAB and Fixed Point Runtime Library Functions
The supported functions for HDL code generation are listed in the following tables. In these tables, a icon before the name of a function indicates that there are specific usage notes and limitations related to HDL code generation for that function. To view these usage notes and limitations, in the corresponding reference page, scroll down to the Extended Capabilities section at the bottom and expand the HDL Code Generation section.
The table shows HDL code generation support for both MATLAB and fixed-point run-time library functions from the Fixed-Point Designer™ functions.
HDL code generation support for the functions is summarized in the following tables.
Fixed-Point Function Limitations
In addition to function-specific limitations listed in the table, the following general limitations apply to the use of Fixed-Point Designer functions in generated HDL code:
quantizerobjects are not supported.
Slope and bias scaling are not supported.
Dot notation is only supported for getting the values of
numerictypeproperties. Dot notation is not supported for
fiobjects, and it is not supported for setting properties.
Word lengths greater than
128bits are not supported.
You cannot change the
numerictypeof a given variable after that variable has been created.
ScaledDoublevalues of the
DataTypeproperties are not supported.
SumModeproperty settings other than
CastBeforeSumproperty must be set to
numelfunction returns the number of elements of
fiobjects in the generated code.
General limitations of C/C++ code generated from MATLAB apply. See MATLAB Language Features That Code Generation Does Not Support.