Automated Fixed-Point Conversion in MATLAB

Conversion to fixed point using fiaccel

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

Functions

`fiaccel`	Accelerate fixed-point code or convert floating-point MATLAB code to fixed-point MATLAB code
`coder.config`	Create configuration object for fixed-point or single-precision conversion
`coder.approximation`	Create function replacement configuration object
`coder.allowpcode`	Control code generation from P-code files
`coder.const`	Fold expressions into constants in generated code
`coder.extrinsic`	Declare function as extrinsic and execute it in MATLAB
`coder.float2fixed.skip`	Exclude functions from fixed-point conversion (Since R2024b)
`coder.inline`	Control inlining of current function in generated code
`coder.inlineCall`	Inline called function in generated code (Since R2024a)
`coder.load`	Load constants from MAT file or ASCII file at code generation time
`coder.newtype`	Create `coder.Type` object to represent type of an entry-point function input
`coder.nonInlineCall`	Prevent inlining of called function in generated code (Since R2024a)
`coder.nullcopy`	Declare uninitialized variables in generated code
`coder.resize`	Resize `coder.Type` object
`coder.target`	Determine if code generation target is specified target
`coder.typeof`	Create `coder.Type` object to represent the type of an entry-point function input
`coder.unroll`	Unroll `for`-loop by making a copy of the loop body for each loop iteration
`coder.varsize`	Resolve size incompatibility errors and declare upper bounds

`coder.mexconfig`	Code acceleration configuration object for use with `fiaccel`
`coder.FixPtConfig`	Floating-point to fixed-point conversion configuration object
`coder.ArrayType`	Represent set of MATLAB arrays acceptable for input specification
`coder.Constant`	Specification of constant value for code generation
`coder.EnumType`	Represent set of MATLAB enumerations acceptable for input specification
`coder.FiType`	Represent set of MATLAB fixed-point arrays acceptable for input specification
`coder.PrimitiveType`	Represent set of logical, numeric, or character arrays acceptable for input specification
`coder.StructType`	Represent set of MATLAB structure arrays acceptable for input specification
`coder.Type`	Represent set of MATLAB values acceptable for input specification

Decide Which Workflow Is Right for Your Application
Learn the benefits of each conversion workflow to help you decide which one best fits your needs.
Fixed-Point Conversion Workflows
Learn which fixed-point conversion method best matches your end goal and your level of fixed-point expertise.
Automated Fixed-Point Conversion
Using the command line to perform automated fixed-point conversion.
Automated Fixed-Point Conversion Best Practices
Generate fixed-point code according to best practices.
Convert Fixed-Point Conversion Project to MATLAB Scripts
Use project settings for fixed-point conversion at the command line.

Specify Type Proposal Options
Specify options when proposing types for automated fixed-point conversion.
Generated Fixed-Point Code
Avoid issues with generated fixed-point code.
Replacing Functions Using Lookup Table Approximations
Generate lookup table approximations to replace custom functions or functions that are not supported for fixed point.
Custom Plot Functions
Visualize numerical differences during fixed-point conversion.

MATLAB Language Features Supported for Automated Fixed-Point Conversion
Learn which language features are and are not supported for automated fixed-point conversion.
Fixed-Point Code for MATLAB Classes
Use supported constructs and coding style best practices for fixed-point conversion of MATLAB classes.
System Objects Supported for Automated Fixed-Point Conversion
Use the fiaccel function to automatically propose and apply data types for commonly used system objects.

Propose Data Types Based on Simulation Ranges Using the fiaccel Function
Propose fixed-point data types based on simulation ranges using the fiaccel function.
Propose Data Types Based on Derived Ranges Using the fiaccel Function
Propose fixed-point data types based on static ranges using the fiaccel function.
Detect Overflows
Detect overflows at the command line.
Replace the exp Function with a Lookup Table
Replace a function with a lookup table approximation in fixed-point code generated with the fiaccel function.
Replace a Custom Function with a Lookup Table
Replace a custom function with a lookup table approximation function by using the fiaccel function.
Enable Plotting Using the Simulation Data Inspector
Inspect and compare floating-point and fixed-point logged input and output data.
Visualize Differences Between Floating-Point and Fixed-Point Results
Use a custom plot function to compare the behavior of the generated fixed-point code against the behavior of the original floating-point MATLAB code.

Avoid issues with generated fixed-point code.

Highlight potential data type issues in report.

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