Computers as Components, 2nd Edition

CHAPTER

8

Networks

■ Why we build networked embedded systems.

■ General network architectures and the ISO network layers.

■ Several networks: I

2

C, CAN, and Ethernet.

■ Internet-enabled embedded systems.

■ Sensor networks.

■ Elevator controller design example.

INTRODUCTION

In this chapter we study networks that can be used to build distributed

embedded systems. In a distributed embedded system, several processing

elements (PEs) (either microprocessors orASICs) are connected by a network that

allows them to communicate.The application is distributed over the PEs, and some

of the work is done at each node in the network.

There are several reasons to build network-based ...