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Fixed-Point Designer

Design and simulate fixed-point systems

Fixed-Point Designer™ provides data types and tools for developing fixed-point algorithms in MATLAB® code, Simulink® models, and Stateflow® charts. It automatically proposes fixed-point data types and attributes such as word length. You can also specify attributes such as rounding mode and overflow action manually. You can perform accelerated bit-true simulations to observe the impact of limited range and precision.

Fixed-Point Designer lets you convert floating-point algorithms to fixed point. You can create and optimize fixed-point data types that meet your numerical accuracy requirements and target hardware constraints. You can simulate your design and analyze the results to obtain range information. Fixed-Point Designer uses this information to recommend word lengths and scalings for your fixed-point algorithm and enable you to compare fixed-point results with floating-point baselines.

Fixed-Point Designer supports C, HDL, and PLC code generation.

Getting Started

Learn the basics of Fixed-Point Designer

Fixed-Point Basics

Learn about fixed-point number representation, scaling, range, precision, and arithmetic operations

Fixed-Point Design for MATLAB Code

Design and simulate fixed-point systems using MATLAB

Fixed-Point Design for Simulink Models

Design and simulate fixed-point systems using Simulink

Single-Precision Design for MATLAB Code

Convert double-precision MATLAB code to single-precision MATLAB code

Single-Precision Design for Simulink

Convert double-precision systems in Simulink to single precision