Donald S. Reay

Digital Signal Processing and Applications with the OMAP - L138 eXperimenter (eBook, PDF)

• Format: PDF

Produktbeschreibung

Teaches digital signal processing concepts via hands-on examples The OMAP-L138 eXperimenter is the latest inexpensive DSP development system to be adopted by the Texas Instruments University Program. The OMAP-L138 processor contains both ARM and DSP cores and is aimed at portable and mobile multimedia applications. This book concentrates on the demonstration of real-time DSP algorithms implemented on its C6748 DSP core. Digital Signal Processing and Applications with the OMAP-L138 eXperimenter provides an extensive and comprehensive set of program examples to aid instructors in teaching DSP in a laboratory using audio frequency signals--making it an ideal text for DSP courses at senior undergraduate and postgraduate levels. Subjects covered include polling-based, interrupt-based, and DMA-based I/O methods, and how real-time programs may be run using the board support library (BSL), the DSP/BIOS real-time operating system, or the DSP/BIOS Platform Support Package. Chapters include: * Analog input and output with the OMAP-L138 eXperimenter * Finite impulse response filters * Infinite impulse response filters * Fast Fourier transform * Adaptive filters * DSP/BIOS and platform support package Each chapter begins with a review of background theory and then presents a number of real-time program examples to reinforce understanding of that theory and to demonstrate the use of the OMAP-L138 eXperimenter and Texas Instruments Code Composer Studio integrated development environment.

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Produktdetails

• Verlag: John Wiley & Sons
• Seitenzahl: 360
• Erscheinungstermin: 6. März 2012
• Englisch
• ISBN-13: 9781118229125
• Artikelnr.: 38237091

Autorenporträt

Donald Reay is a Lecturer at Heriot-Watt University in Edinburgh, Scotland. He has also taught hands-on DSP, on a number of occasions, as a visiting lecturer at Zhejiang University in Hangzhou, China. He coauthored, with Rulph Chassaing, the Second Edition of Digital Signal Processing and Applications with the TMS320C6713 and TMS320C6416 DSK, also published by Wiley.

Inhaltsangabe

Preface xi List of Examples xiii 1. OMAP-L138 Development System 1 1.1
Introduction 1 1.1.1 Digital Signal Processors 3 1.2 Hardware and Software
Tools 4 1.2.1 Zoom OMAP-L138 eXperimenter Board 6 1.2.2 C6748 Processor 6
1.2.3 Code Composer Studio IDE 6 1.2.4 Installation of Code Composer Studio
Software Version 4 and Support Files 7 1.3 Initial Test of the Experimenter
Using a Program Supplied with this Book 8 1.4 Programming Examples to Test
the Experimenter 14 1.5 Support Files 31 1.5.1 Initialization and
Configuration File (L138_aic3106_init.c) 31 1.5.2 Header File
(L138_aic3106_init.h) 32 1.5.3 Vector Files (vectors_intr.asm and
vectors_poll.asm) 32 1.5.4 Linker Command File (linker_dsp.cmd) 34
Exercises 36 References 37 2. Analog Input and Output with the OMAP-L138
eXperimenter 38 2.1 Introduction 38 2.1.1 Sampling, Reconstruction, and
Aliasing 39 2.2 TLV320AIC3106 (AIC3106) On-Board Stereo Codec for Analog
Input and Output 39 2.3 Programming Examples Using C Code 41 2.3.1
Real-Time Input and Output Using Polling, Interrupts, and Direct Memory
Access 41 2.3.2 Real-Time Sine Wave Generation 64 References 102 3. Finite
Impulse Response Filters 103 3.1 Introduction to Digital Filters 103 3.1.1
FIR Filter 103 3.1.2 Introduction to the z-Transform 105 3.1.3 Properties
of the z-Transform 107 3.1.4 z-Transfer Functions 109 3.1.5 Mapping from
the s-Plane to the z-Plane 109 3.1.6 Difference Equations 111 3.1.7
Frequency Response and the z-Transform 112 3.1.8 Ideal Filter Response
Classifications: LP, HP, BP, and BS 112 3.1.9 Window Method of Filter
Design 113 3.1.10 Window Functions 114 3.1.11 Design of Band-Pass and
High-Pass Filters Using Frequency Shifting 120 3.2 Programming Examples
Using C And ASM Code 123 References 158 4. Infinite Impulse Response
Filters 159 4.1 Introduction 159 4.2 IIR Filter Structures 160 4.2.1 Direct
Form I Structure 160 4.2.2 Direct Form II Structure 161 4.2.3 Direct Form
II Transpose 162 4.2.4 Cascade Structure 164 4.2.5 Parallel Form Structure
165 4.3 Impulse Invariance 166 4.4 Bilinear Transformation 167 4.4.1
Bilinear Transform Design Procedure 169 4.5 Programming Examples Using C
and ASM Code 169 4.5.1 Design of a Simple IIR Low-Pass Filter 169 Reference
211 5. Fast Fourier Transform 212 5.1 Introduction 212 5.2 Development of
the FFT Algorithm with Radix-2 213 5.3 Decimation-In-Frequency FFT
Algorithm with Radix-2 214 5.4 Decimation-In-Time FFT Algorithm with
RADIX-2 218 5.4.1 Reordered Sequences in the Radix-2 FFT and Bit-Reversed
Addressing 220 5.5 Decimation-In-Frequency FFT Algorithm with Radix-4 221
5.6 Inverse Fast Fourier Transform 223 5.7 Programming Examples Using C
Code 223 5.7.1 Frame- or Block-Based Processing 233 5.7.2 Fast Convolution
258 References 278 6. Adaptive Filters 279 6.1 Introduction 279 6.2
Adaptive Filter Configurations 280 6.2.1 Adaptive Prediction 280 6.2.2
System Identification or Direct Modeling 281 6.2.3 Noise Cancellation 281
6.2.4 Equalization 283 6.3 Performance Function 283 6.3.1 Visualizing the
Performance Function 285 6.4 Searching for the Minimum 285 6.5 Least Mean
Squares Algorithm 287 6.5.1 LMS Variants 288 6.6 Programming Examples 288
7. DSP/BIOS and Platform Support Package 307 7.1 Introduction to DSP/BIOS
307 7.1.1 DSP/BIOS Threads 307 7.1.2 DSP/BIOS Configuration Tool 308 7.1.3
DSP/BIOS Start-Up Sequence 309 7.1.4 Hardware Interrupts 310 7.1.5 Software
Interrupts 320 7.1.6 Tasks and Idle Functions 322 7.1.7 Periodic Functions
327 7.1.8 Real-Time Analysis with DSP/BIOS 329 7.2 DSP/BIOS Platform
Support Package 329 References 335 Index 337