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Block State Storage

The discussion of block state storage in this section applies to the following blocks:

• Discrete Filter

• Discrete State-Space

• Discrete-Time Integrator

• Discrete Transfer Function

• Discrete Zero-Pole

• Memory

• Unit Delay

These blocks require persistent memory to store values representing the state of the block between consecutive time intervals. By default, such values are stored in a data type work vector. This vector is usually referred to as the DWork vector. It is represented in generated code as model_DWork, a global data structure. For more information on the DWork vector, see the Target Language Compiler documentation.

If you want to interface a block state to your hand-written code, you can specify that the state is to be stored in a location other than the DWork vector. You do this by assigning a storage class to the block state.

You can also define a symbolic name, to be used in code generation, for a block state.

Introduction

Block State Storage Classes

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