Stateflow

Resolving Event, Data, and Function Symbols

When you simulate a model, build a target, or generate code for a target, the Stateflow machine is automatically parsed (see Parsing Stateflow Diagrams). During that time, if Stateflow finds that your diagram does not resolve some of its symbols, it uses the following process to determine whether to report parse errors for the unresolved symbols or continue generating code:

Symbol Autocreation Wizard

The Symbol Autocreation Wizard helps you to add missing data and events to your Stateflow charts. When you parse or simulate a diagram, the Wizard detects references to data and events that are not already defined in the Stateflow Explorer and opens with a list of the recommended data or events that you need to define.

To accept, reject, or change a recommended item, do the following:

• To accept an item, select the space in front of the item under the check mark column.

• To accept all items, select the CheckAll button.

• To reject an item, leave it unchecked.
• To change an item, select the value under the T (type), Scope, or Proposed Parent column for that item.

• Each time you select the value, the Wizard replaces the entry with a different value. Keep selecting until the desired value appears.

When you are satisfied with the proposed symbol definitions, click the Wizard's Create button to add the symbols to Stateflow's data dictionary.

Parsing Diagram Example

Error Messages