Fixed-Point Tool

Convert floating-point model to fixed-point

Description

In conjunction with Fixed-Point Designer™ software, the Fixed-Point Tool provides convenient access to:

An interactive automatic data typing feature that proposes fixed-point data types for appropriately configured objects in your model, and then allows you to selectively accept and apply the data type proposals
Model and subsystem parameters that control the signal logging, fixed-point instrumentation mode, and data type override
Plotting capabilities that enable you to plot data that resides in the MATLAB^® workspace

Most of the functionality in the Fixed-Point Tool is for use with the Fixed-Point Designer software. However, even if you do not have Fixed-Point Designer software, you can configure data type override settings to simulate a model that specifies fixed-point data types. In this mode, the Simulink^® software temporarily overrides fixed-point data types with floating-point data types when simulating the model.

Open the Fixed-Point Tool

In the Simulink Apps tab, select Fixed-Point Tool.
From a subsystem context (right-click) menu, select Fixed-Point Tool.
From the MATLAB command prompt, enter fxptdlg(system_name) where system_name is the name of the model or system you want to convert, specified as a string.