Introduction
This section discusses how the Real-Time Workshop product
generates parameter storage declarations, and how you can generate
the storage declarations you need to interface block parameters to
your code.
If you are using S-functions in your model and intend to tune
their run-time parameters in the generated code, see Tuning Run-Time Parameters in
the Simulink documentation. Note that
Parameters must be numeric, logical, or character
arrays.
Parameters may not be sparse.
Parameter arrays must not be greater than 2 dimensions.
For guidance on implementing a parameter tuning interface using
a C API, see Interacting with Target Application Signals
and Parameters Using the C API.
Simulink external mode offers a way to monitor signals
and modify parameter values while generated model code executes. However,
external mode might not be appropriate for your application in some
cases. The S-function target does not support external mode, for example.
For other targets, you might want your existing code to access parameters
and signals of a model directly, rather than using the external mode
communications mechanism. For information on external mode, see Communicating With Code Executing on a Target
System Using Simulink External Mode.
 | Parameter Considerations | | Nontunable Parameter Storage |  |
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