Real-Time Workshop Embedded Coder

Real-Time Workshop Embedded Coder Demos
and Examples

Demos

We have provided a number of demos to help you become familiar with features of the Real-Time Workshop Embedded Coder and to inspect generated code. These demos illustrate features specific to the Real-Time Workshop Embedded Coder as well as general Real-Time Workshop features as used with the Embedded Coder.

If you are reading this document online in the MATLAB Help browser, you can run the demos by clicking on the links in the Command column of the following table.

Alternatively, you can access the demo suite by typing commands from the Command column of the table at the MATLAB command prompt, as in this example:

• ecoderdemos
  
  
  

  Table 1-1: Real-Time Workshop Embedded Coder Demos  

  Command	Demo Topic
  ecoderdemos	Top-level demo containing buttons to run the other demos of the Real-Time Workshop Embedded Coder demo suite
  ecodertutorial	Interactive tutorial on application deployment, configuring options, custom target development, and backwards compatibility issues.
  asap2demo	ASAP2 data file generation
  atomicdemo	Nonvirtual subsystem code generation
  cbdemo	High-level optimizations in generated code
  cscdemos	Code generation with custom storage classes.
  cscdesignintro	How to design your own custom storage classes.
  cscpredefineddemo	Use of the predefined custom storage classes
  cscvariantdemo	Use of variant parameters
  cscgetsetdemo	Use of the GetSet custom storage class with data store memory blocks
  ecdemo	Generation of callable procedure with pure integer code; also creates HTML code generation report
  ecifdemo	Use of control flow constructs such as if, while, and for
  exprfolding	Expression folding: a technique that improves code efficiency by reducing use of temporary variables and expressions
  hierdemo	Resolution of variable names within a model hierarchy
  objectdemo	Use of Simulink data objects in simulation and code generation
  rtwecexamplemain	Generating an example main program for a bare-board target without an operating system.
  sfexfold	Expression folding in a model that integrates Stateflow and Embedded Coder
  ssdemo	Advanced features of Embedded Coder, including subsystem code generation, HTML code generation report, and automatic S-function wrapper generation
  tunabledemo	Use of tunable expressions in generated code

ECRobot Target Example

The ECRobot (Embedded Coder Robot) target is a simple example of a custom target based on the Real-Time Workshop Embedded Coder.

Programs generated by the ECRobot target run on the Robot Command System (RCX^TM) module of the LEGO® MINDSTORMS^TM Robotics Invention System2.0^TM.

This platform affords an inexpensive and simple way to study concepts and techniques essential to developing a custom embedded target, and to develop, run and observe generated programs. The files included with the target illustrate typical approaches to problems encountered in custom target development, including

• Interfacing a Real-Time Workshop Embedded Coder generated program to an external real-time operating system (RTOS) or kernel.
• Implementing device drivers, via wrapper S-functions, for use in simulation and inlined code generation.
• Customizing a system target file by adding code generation options and adding the target to the System Target File Browser.
• Customizing a template makefile to use a target specific cross-compiler and download generated code to the target hardware.

The ECRobot target, originally developed as a training class example and demonstration, is now available to all Real-Time Workshop Embedded Coder users. The ECRobot target files are automatically installed with the Real-Time Workshop Embedded Coder. Source code files, control files, demonstration models, and documentation for the target are installed in the directory matlabroot/toolbox/rtw/targets/ECRobot.

Note    The ECRobot target requires an operating system kernel, a cross-compiler and support utilities that are available on the Web. For instructions on how to obtain and install these utilities, see the file readme.html in the matlabroot/toolbox/rtw/targets/ECRobot/documentation directory.

Introduction

Data Structures and Program Execution