Stateflow

Debugging Cyclic Behavior

When a step or sequence of steps is indefinitely repeated (recursive), this is called cyclic behavior. The Debugger cycle detection algorithms detect a class of infinite recursions caused by event broadcasts.

To detect cyclic behavior during a simulation, do the following:

1. Build the target with debugging enabled.
2. Invoke the Debugger and enable Detect Cycles.
3. Start the simulation.

See the following sections for examples of cyclic behavior:

• Cyclic Behavior Example -- Shows a typical example of a cycle created by infinite recursions caused by an event broadcast.
• Flow Cyclic Behavior Not Detected Example -- Shows an example of cyclic behavior in a flow diagram that is not detected by the Debugger.
• Noncyclic Behavior Flagged as a Cyclic Example -- Shows an example of noncyclic behavior that the Debugger flags as being cyclic.

Debugging Data Range Violations

Cyclic Behavior Example