定点转换基础知识与类型设定
了解定点转换基础知识、自动定点转换过程、支持 HDL 代码生成的定点函数及数据类型设定。有关定点转换过程的概述，请参阅Automated Fixed-Point Conversion。要开始使用示例，请参阅Floating-Point to Fixed-Point Conversion。
函数
codegen | 从 MATLAB 代码生成 HDL 或高级综合 (HLS) 代码 |
coder.config | 创建 HDL Coder 代码生成配置对象 |
coder.approximation | Create function replacement configuration object |
类
coder.FixPtConfig | Floating-point to fixed-point conversion configuration object |
主题
- Automated Fixed-Point Conversion
Convert floating-point MATLAB® code to fixed-point code.
- Specify Type Proposal Options
- Specify Properties of Entry-Point Function Inputs
Specify input types so that the code generator can determine the types of all variables.
- Data Type Issues in Generated Code
Highlight potential data type issues in report.
- Functions Supported for HDL and HLS Code Generation
Built-in MATLAB and toolbox functions supported for HDL and High-Level Synthesis (HLS) code generation.
- Custom Plot Functions
Use a custom plotting function to visualize the differences between the floating-point and fixed-point results.
- Edit Configuration Parameters for Fixed-Point Code Generation
Edit fixed-point configuration object parameters interactively.
精选示例
Working with Fixed-Point Code
HDL code generation from a fixed-point MATLAB® design that is ready for code generation.
Floating-Point to Fixed-Point Conversion
Start with a floating-point design in MATLAB®, iteratively converge on an efficient fixed-point design in MATLAB, and verify the numerical accuracy of the generated fixed-point design.
Generate HDL Code from MATLAB Code Using the Command Line Interface
Use the HDL Coder™ command line interface to generate HDL code from MATLAB® code, including floating-point to fixed-point conversion and FPGA programming file generation.
Fixed-Point Type Conversion and Refinement
Achieve your desired numerical accuracy when converting floating-point MATLAB® code to fixed-point code using the HDL Workflow Advisor.
Working with Generated Fixed-Point Files
Work with the files generated during floating-point to fixed-point conversion.
Fixed-Point Type Conversion and Derived Ranges
Achieve your desired numerical accuracy when converting fixed-point MATLAB® code to floating-point code using static range analysis which helps to compute derived ranges of the variables from design ranges.
