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Automated Fixed-Point Conversion in MATLAB

Conversion to fixed point using the Fixed-Point Converter app

The Fixed-Point Converter app enables you to convert floating-point MATLAB® code to fixed-point MATLAB code.

Use fiaccel to convert floating-point MATLAB code to fixed-point MATLAB code at the command line.


Fixed-Point ConverterConvert MATLAB code to fixed point


fiaccelAccelerate fixed-point code and convert floating-point MATLAB code to fixed-point MATLAB code
coder.configCreate configuration object for fixed-point or single-precision conversion
coder.mexconfigCode acceleration configuration object
coder.approximationCreate function replacement configuration object
coder.allowpcodeControl code generation from protected MATLAB files
coder.constFold expressions into constants in generated code
coder.extrinsicDeclare a function as extrinsic and execute it in MATLAB
coder.inlineControl inlining of a specific function in generated code
coder.loadLoad compile-time constants from MAT-file or ASCII file into caller workspace
coder.newtypeCreate coder.Type object to represent type of an entry-point function input
coder.nullcopyDeclare uninitialized variables in code generation
coder.resizeResize coder.Type object
coder.targetDetermine if code generation target is specified target
coder.typeofCreate coder.Type object to represent the type of an entry-point function input
coder.unrollUnroll for-loop by making a copy of the loop body for each loop iteration
coder.varsizeDeclare variable-size data


coder.mexconfigCode acceleration configuration object for use with fiaccel
coder.FixPtConfigFloating-point to fixed-point conversion configuration object
coder.ArrayTypeRepresent set of MATLAB arrays
coder.ConstantSpecification of constant value for code generation
coder.EnumTypeRepresent set of MATLAB enumerations
coder.FiTypeRepresent set of MATLAB fixed-point arrays
coder.PrimitiveTypeRepresent set of logical, numeric, or char arrays
coder.StructTypeRepresent set of MATLAB structure arrays
coder.TypeRepresent set of MATLAB values


Automated Fixed-Point Conversion Workflow

Propose Fixed-Point Types

Convert to Fixed Point

Verify Fixed-Point Conversion

Supported Language Features

Command Line Workflow


Generated Fixed-Point Code

Avoid issues with generated fixed-point code.

Data Type Issues in Generated Code

Highlight potential data type issues in report.

Debug Numerical Issues in Fixed-Point Conversion Using Variable Logging

Learn how to debug your fixed-point code when you need more than out of the box conversion.

Why Does the Fixed-Point Converter App Not Propose Data Types for System Objects?

Troubleshoot missing data type proposals for System objects.

Slow Operations in the Fixed-Point Converter App

Determine whether code generation readiness screening is causing slow operations in the app.