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To determine if the Fixed-Point Designer™ software is installed on your system, type
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 Fixed-Point Designer 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).
You can edit a model containing fixed-point blocks without the Fixed-Point Designer software. However, you must have a Fixed-Point Designer 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 Fixed-Point Designer 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.
In the Fixed-Point Tool:
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');