What You Need to Get Started :: Getting Started (Simulink® Fixed Point™)

What You Need to Get Started

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Installation Sharing Fixed-Point Models Demos

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Installation

To determine if the Simulink Fixed Point software is installed on your system, type

ver

at the MATLAB^® command line. When you enter this command, the MATLAB Command Window displays information about the version of MATLAB software you are running, including a list of installed add-on products and their version numbers. Check the list to see if the Simulink Fixed Point software appears.

For information about installing this product, refer to the installation documentation.

If you experience installation difficulties and have Web access, look for the installation and license information at the MathWorks^® Web site (http://www.mathworks.com/support).

Sharing Fixed-Point Models

You can edit a model containing fixed-point blocks without the Simulink Fixed Point software. However, you must have a Simulink Fixed Point software license to

Update a Simulink diagram (Ctrl+D) containing fixed-point data types
Run a model containing fixed-point data types
Generate code from a model containing fixed-point data types
Log the minimum and maximum values produced by a simulation
Automatically scale the output of a model

If you do not have the Simulink Fixed Point software, you can work with a model containing Simulink blocks with fixed-point settings as follows:

In the Model Hierarchy pane, select the root model.
From the Simulink model Tools menu, select Fixed-Point > Fixed-Point Tool.
The Fixed-Point Tool appears.
- Set the Fixed-point instrumentation mode parameter to Force Off.
- Set the Data type override parameter to Double or Single.
- Set the Data type override applies to parameter to All numeric types.
If you use fi objects or embedded numeric data types in your model, set the fipref DataTypeOverride property to TrueDoubles and the DataTypeOverride property to All numeric types.
At the MATLAB command line, enter:
```
 p = fipref('DataTypeOverride', 'TrueDoubles', ...
		'DataTypeOverrideAppliesTo', 'AllNumericTypes');
```

Note If you use fi objects or embedded numeric data types in your model or workspace, you might introduce fixed-point data types into your model. You can set fipref to prevent the checkout of a Fixed-Point Toolbox™ license. For more information, see Licensing in the Fixed-Point Toolbox documentation.

Demos

To help you learn how to use the Simulink Fixed Point software, a collection of demos is provided. You can explore specific features of the product by changing the parameters of Simulink blocks with fixed-point support and observing the effects of those changes.

The demos are divided into the following groups: