MATLAB 中的自动定点转换

使用定点转换器转换为定点

定点转换器使您能够将浮点 MATLAB^® 代码转换为定点 MATLAB 代码。

在命令行中使用 fiaccel 将浮点 MATLAB 代码转换为定点 MATLAB 代码。

App

将 MATLAB 代码转换为定点

`fiaccel`	Accelerate fixed-point code or convert floating-point MATLAB code to fixed-point MATLAB code
`coder.config`	为定点或单精度转换创建配置对象
`coder.approximation`	Create function replacement configuration object
`coder.allowpcode`	从 P 代码文件控制代码生成
`coder.const`	在生成的代码中将表达式折叠为常量
`coder.extrinsic`	将函数声明为外部函数，并在 MATLAB 中执行它
`coder.float2fixed.skip`	Exclude functions from fixed-point conversion (自 R2024b 起)
`coder.inline`	控制生成代码中当前函数的内联
`coder.inlineCall`	Inline called function in generated code (自 R2024a 起)
`coder.load`	从 MAT 文件或 ASCII 文件加载编译时常量
`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 (自 R2024a 起)
`coder.nullcopy`	在代码生成中声明未初始化的变量
`coder.resize`	调整 `coder.Type` 对象的大小
`coder.target`	确定代码生成目标是否为指定的目标
`coder.typeof`	Create `coder.Type` object to represent the type of an entry-point function input
`coder.unroll`	通过为每次循环迭代生成循环体的副本来展开 `for` 循环
`coder.varsize`	声明可变大小数据

`coder.mexconfig`	Code acceleration configuration object for use with `fiaccel`
`coder.FixPtConfig`	Floating-point to fixed-point conversion configuration object
`coder.ArrayType`	表示输入设定可接受的一组 MATLAB 数组
`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`	表示输入设定可接受的一组 MATLAB 值

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 Fixed-Point Converter app for automated fixed-point conversion.
Automated Fixed-Point Conversion Best Practices
Generate fixed-point code according to best practices.
Propose Data Types Based on Simulation Ranges Using the Fixed-Point Converter App
Propose fixed-point data types based on simulation ranges using the Fixed-Point Converter app.
Propose Data Types Based on Derived Ranges Using the Fixed-Point Converter App
Propose fixed-point data types based on static ranges using the Fixed-Point Converter app.
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.
View and Modify Variable Information
View and modify variable information for fixed-point conversion.
Detect Unexecuted and Constant-Folded Code
Learn how the app detects code that is not executed or code that is constant folded during simulation of your test file.

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.
Replace the exp Function with a Lookup Table
Replace a function with a lookup table approximation in fixed-point code generated with the Fixed-Point Converter app.
Replace a Custom Function with a Lookup Table
Replace a custom function with a lookup table approximation function by using the Fixed-Point Converter app.

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.
Enable Plotting Using the Simulation Data Inspector
Inspect and compare floating-point and fixed-point logged input and output data.
Custom Plot Functions
Visualize numerical differences during fixed-point conversion.
Detect Overflows
Detect overflows using the app.

MATLAB Language Features Supported for Automated Fixed-Point Conversion
Learn which language features are and are not supported for automated fixed-point conversion.
Convert Code Containing Global Variables to Fixed-Point
Convert MATLAB code using global variables to fixed-point using the app.
Convert Code Containing Structures to Fixed Point
Convert a MATLAB algorithm containing structures to fixed point using the Fixed-Point Converter app.
Generate Fixed-Point MATLAB Code for Multiple Entry-Point Functions
Generate fixed-point code for multiple entry-point functions using the Fixed-Point Converter app.
Fixed-Point Code for MATLAB Classes
Use supported constructs and coding style best practices for fixed-point conversion of MATLAB classes.
Convert Code Containing Global Data to Fixed Point
Convert MATLAB code using global variables to fixed-point programmatically.
Convert Identical Functions Called with Different Data Types
Convert a MATLAB algorithm containing specialized functions to fixed point using the Fixed-Point Converter app.
Convert dsp.FIRFilter Object to Fixed-Point Using the Fixed-Point Converter App
Convert a dsp.FIRFilter System object™, which filters a high-frequency sinusoid signal, to fixed-point using the Fixed-Point Converter app.
System Objects Supported by Fixed-Point Converter App
Use the Fixed-Point Converter app 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.