Real-Time Workshop User's Guide

External Mode

This section discusses the following topics:

• Introduction. Summary of external mode features and architecture.
• Tutorial: Getting Started with External Mode Using GRT. Hands-on exercise demonstrating basics of how to use external mode on a single computer.
• Using the External Mode User Interface. Details of all elements of the external mode user interface.
• External Mode Compatible Blocks and Subsystems. Types of blocks that you can use to receive and view signals in external mode.
• Signal Viewing Subsystems. How to use subsystems to encapsulate processing and viewing of signals received from the target system, generating a smaller and more efficient target program.
• Overview of External Mode Communications. Summary of the communications process between Simulink and the target program.
• The TCP/IP Implementation. Features of the TCP/IP-based implementation of the external mode protocol provided by the Real-Time Workshop; bundled targets that support this implementation; how to build and run target programs that support the TCP/IP implementation.
• Limitations of External Mode. Restrictions on the use of external mode that are imposed by the structure of the model.

You may wish to read the following for additional information on external mode:

• Creating an External Mode Communication Channel contains advanced information for those who want to implement their own external mode communications layer. You may want to read it for additional insight into the architecture and code structure of external mode communications.
• Targeting Tornado for Real-Time Applications discusses the use of external mode in the VxWorks Tornado environment.

Embedded C Code Format

Introduction