Simulink에서 고정소수점 코드 생성
Simulink® Coder™ 또는 Embedded Coder®를 사용하여 Fixed-Point Designer™에서 C 코드를 생성할 수 있습니다. 고정소수점 모델에서 생성된 코드는 정수형만 사용하며, 시프트같이 고정소수점 위치의 차이를 처리하는 데 필요한 모든 연산을 자동으로 포함합니다. 생성된 코드를 임베디드 고정소수점 프로세서나 신속 프로토타이핑 시스템에서 사용할 수 있습니다. 이는 해당 프로세서나 시스템에 부동소수점 프로세서가 포함되어 있는 경우에도 적용됩니다.
Fixed-Point Designer를 HDL Coder™와 함께 사용할 경우 Simulink 모델, Stateflow® 차트 및 MATLAB Function 블록에서 합성 가능한 비트트루(bit-true) Verilog® 코드와 VHDL® 코드를 생성할 수 있습니다.
도움말 항목
고성능 코드를 위한 모델
- Lookup Table Optimization
Optimize lookup tables in your model to improve efficiency. - Selecting Data Types for Basic Operations
How to select efficient data types for basic fixed-point operations. - Fixed-Point Code Generation Support
Simulink features supported for fixed-point code generation. - Use Simplest Rounding for Efficient Generated Code
The simplest rounding mode attempts to reduce or eliminate the need for extra rounding code in your generated code using a combination of techniques.
MATLAB 코드 통합하기
- Control Data Types and Generate Code with MATLAB Function Block
Use data type override andfimathobjects with the MATLAB Function block. - Generate Fixed-Point FIR Code Using MATLAB Function Block
Create and generate code for a fixed-point, low-pass, direct form FIR filter.
모델 어드바이저 사용
- Optimize Generated Code with the Model Advisor
Use the Model Advisor to identify model settings that might lead to non-optimal results in code generation. - Net Slope Computation
Control how the software handles net slope computations in generated code.
생성된 코드 사용자 지정
- Control the Generation of Fixed-Point Utility Functions
Control the generation of fixed-point utility functions using specified minimum and maximum values.
표준 준수 유지
- Use of Shifts by C Code Generation Products
Understand the use of shifts by MathWorks® coder products including how to control the shifts using optimization settings in the configuration parameters as well as modeling techniques.
문제 해결
Targeting an Embedded Processor
Describes issues that arise when targeting a fixed-point design for use on an embedded processor.
Data types supported for simulation and code generation.
추천 예제
Fixed-Point Optimizations Using Specified Minimum and Maximum Values
Optimize fixed-point operations in generated code using minimum and maximum values that you specify in a model. Minimum and maximum values can represent environmental limits or mechanical limits, such as the output ranges of sensors. The code generation software can use these values to create more efficient code by eliminating unreachable code branches and unnecessary utility functions.
Fixed-Point Multiword Operations in Generated Code
Control generation of multiword operations in generated code.
Fixed-Point Multiplication Helper Functions in Generated Code
Control the generation of multiplication helper functions in the generated code.
Specify Fixed-Point Math Properties in MATLAB Function Block
Specify fixed-point math properties in a MATLAB Function block. You can specify fimath properties to add fixed-point numbers without bit growth. The same methods also apply to subtraction and multiplication.
