Real-Time Workshop

Interrupt Handling

The blocks in the Interrupt Templates library allow you to model synchronous/asynchronous event handling, including interrupt service routines (ISRs). These blocks include:

• Asynchronous Rate Transition (reader)
• Asynchronous Buffer block (write)
• Interrupt Control block
• Unprotected Asynchronous Rate Transition block
• Task Synchronization block

Using these blocks, you can create models that handle asynchronous events, such as hardware generated interrupts and asynchronous read and write operations. The following sections discuss each of these blocks in the context of VxWorks Tornado operating system.

Introduction

Interrupt Control Block