R12 Release Notes

Chapter 43
Stateflow Coder 4.0 Release Notes

New Features

This section introduces the new features and enhancements added in Stateflow Coder 4.0 since Stateflow Coder 2.0.1.

For information about Stateflow Coder new features that are incorporated from prior releases, see:

• Release 11.1 New Features
  (enhancements introduced between Release 11.0 and Release 11.1)
• Release 11 New Features
  (enhancements introduced between Release 9.0 and Release 11.0)

Note    The Stateflow Coder extends the functionality of Stateflow.

Improved Code Generation

The Stateflow Coder 4.0 code generation has been significantly improved:

• The code looks hand-written.
• ROM and RAM size rivals hand-written code.
• Code generation is faster.

Temporal Logic

Note    The temporal logic feature was introduced in Stateflow Coder 3.0.

You can now use temporal conditions (before, after, at, every time) to determine the activation of transitions and duration of state activation. Temporal logic provides a simple paradigm for event scheduling.

Temporal conditions allow your Stateflow model to express clearly and simply the time-dependent behavior of a system.

Stateflow Coder 4.0 supports the new temporal logic feature in Stateflow, which allows it to be extremely efficient with memory usage in the generated code. When you use temporal operators, Stateflow manages the various counters needed for event scheduling. Then, with behind-the-scenes optimizations, Stateflow Coder 4.0 can allocate memory more economically.

Known Software and Documentation Problems

Statistics Toolbox 3.0 Release Notes