Real-Time Workshop User's Guide

Custom Code Blocks

Introduction

This chapter discusses the Custom Code library, a collection of blocks that allow you to insert custom code into the generated source code files and/or functions associated with your model.

This chapter include the following topics:

• Model Code Sublibrary. Blocks that insert custom code into the generated model code.
• Subsystem Code Sublibrary. Blocks that insert critical code sections into system functions.

The Custom Code library is part of the Real-Time Workshop library. You can access the Real-Time Workshop library via the Simulink Library Browser as shown in Figure 14-1. Alternatively, you can access the Real-Time Workshop library by typing the command

rtwlib

at the MATLAB command prompt.

Figure 14-1: Custom Code Library and its Sublibraries

This chapter discusses only the C Custom Code library and its sublibraries.

Note that, depending on which MathWorks products you have installed, your browser may show a different collection of libraries.

There are four other sublibraries in the Real-Time Workshop library:

• DOS Device Drivers -- Blocks for use with DOS. See Chapter 13, Targeting DOS for Real-Time Applications for information.
• Interrupt Templates -- A collection of blocks that you can use as templates for building your own asynchronous interrupts. See Chapter 15, Asynchronous Support for information.
• S-Function Target -- The S-Function Target sublibrary contains only one block type, the Real-Time Workshop S-Function block. This block is intended for use with generated S-functions. See Chapter 10, The S-Function Target for more information.
• VxWorks Support -- A collection of blocks that support VxWorks (Tornado). See Chapter 12, Targeting Tornado for Real-Time Applications for information on VxWorks.

Running the Program

Custom Code Library