Real-Time Workshop User's Guide

Introduction

The Real-Time Workshop Embedded Coder is a separate, add-on product for use with the Real-Time Workshop.

The Real-Time Workshop Embedded Coder provides a framework for the production of code that is optimized for speed, memory usage, and simplicity. The Real-Time Workshop Embedded Coder is intended for use in embedded systems.

The Real-Time Workshop Embedded Coder generates code in the Embedded-C format. Optimizations inherent in the Embedded-C code format include:

• Use of model-specific real-time object data structure rather than generic SimStruct significantly reduces code size and memory usage.
• Simplified calling interface reduces overhead. Model output and update functions are combined into a single routine.
• In-lined S-functions (required) reduce calling overhead and code size.
• Static memory allocation reduces overhead and promotes deterministic performance.

The Real-Time Workshop Embedded Coder supports the following key features:

• Integer only code generation
• Floating-point code generation
• Supports asynchronous interrupt-driven execution of models with either single or multiple sample rates
• Automatic generation of S-function wrappers, allowing you to validate the generated code in Simulink (Software-in-the-loop)
• Web-viewable code generation report describes code modules and helps to identify code generation optimizations relevant to your program

This chapter describes the components of the Real-Time Workshop Embedded Coder provided with Real-Time Workshop. It also describes options for optimizing your generated code, and for automatically generating an S-function wrapper that calls your Real-Time Workshop Embedded Coder generated code from Simulink. In addition, certain restrictions that apply to the use of the Real-Time Workshop Embedded Coder are discussed.

We assume you have read Chapter 6, Program Architecture and Chapter 7, Models with Multiple Sample Rates in this manual. Those chapters give a general overview of the architecture and execution of programs generated by Real-Time Workshop.

Real-Time Workshop Embedded Coder

Real-Time Workshop Embedded Coder Demos