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Áp dụng DSP lập trình trong truyền thông di động P7

‘‘DSPs take the RISC’’ From the mid-1980s to the mid-1990s, we were in the ‘‘Personal Computer’’ era and CISC microprocessors fuelled the semiconductor market growth (Figure 7.1). We are now in a new era where people demand high personalized bandwidth, multimedia entertainment and information, anywhere, anytime: Digital Signal Processing (DSP) is the driver of the new era (Figure 7.2). | The Application of Programmable DSPs in Mobile Communications Edited by Alan Gatherer and Edgar Ausländer Copyright 2002 John Wiley Sons Ltd ISBNs 0-471-48643-4 Hardback 0-470-84590-2 Electronic 7 Enabling Multimedia Applications in 2.5G and 3G Wireless Terminals Challenges and Solutions Edgar Auslander Madhukar Budagavi Jamil Chaoui Ken Cyr Jean-Pierre Giacalone Sebastien de Gregorio Yves Masse Yeshwant Muthusamy Tiemen Spits and Jennifer Webb 7.1. Introduction 7.1.1. DSPs take the RISC From the mid-1980s to the mid-1990s we were in the Personal Computer era and CISC microprocessors fuelled the semiconductor market growth Figure 7.1 . We are now in a new era where people demand high personalized bandwidth multimedia entertainment and information anywhere anytime Digital Signal Processing DSP is the driver of the new era Figure 7.2 . There are many ways to implement DSP solutions no matter what the world surrounding us is analog analog technology is therefore key. In this chapter we will explore the different ways to implement DSP solutions and present the case of the dual core DSP RISC which will introduce the innovative OMAP hardware and software platform by Texas Instruments. Whether it is a matter of cordless telephones or modems hard disk controllers or TV decoders applications integrating signal processing need to be as compact as possible. The tendency is of course to put more and more functions on a single chip. But in order to be really efficient the combination of several processors in silicon demands that certain principles be respected. In order to respond to the requirements of real-time DSP in an application the implementation of a DSP solution involves the use of many ingredients analog to digital converters digital to analog converters ASIC memories DSPs microcontrollers software and asso- 108 The Application of Programmable DSPs in Mobile Communications Figure 7.1. DSP and analog drive the Internet age ciated development tools. There is a general .