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
Simulate 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 the Fixed-Point Designer product is not installed on your system, you can work with a model containing Simulink blocks with fixed-point settings as follows:
Instrumentation requires a Fixed-Point Designer license. To disable
fixed-point instrumentation on a model, set the
MinMaxOverflowLogging parameter to
ForceOff. At the command line,
enter:
set_param(gcs,'MinMaxOverflowLogging','ForceOff')
If you do not have Fixed-Point Designer software, you can still configure data type override settings to simulate a model that specifies fixed-point data types. Using this setting, the software temporarily overrides data types with floating-point data types during simulation. To simulate a model without using Fixed-Point Designer, at the command line enter:
set_param(gcs, 'DataTypeOverride', 'Double', ... 'DataTypeOverrideAppliesTo', 'AllNumericTypes')
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. To prevent the checkout of a
Fixed-Point Designer license, set the fipref
DataTypeOverride property to
TrueDoubles and the
DataTypeOverrideAppliesTo property to
AllNumericTypes.
At the MATLAB® command line, enter:
p = fipref('DataTypeOverride', 'TrueDoubles', ...
'DataTypeOverrideAppliesTo', 'AllNumericTypes');