Tham khảo sách 'real-time digital signal processing - appendix c: introduction of c programming for dsp applications', kỹ thuật - công nghệ, điện - điện tử phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Real-Time Digital Signal Processing. Sen M Kuo Bob H Lee Copyright 2001 John Wiley Sons Ltd ISBNs 0-470-84137-0 Hardback 0-470-84534-1 Electronic Appendix C Introduction of C Programming for DSP Applications C has become the language of choice for many DSP software developments not only because of its powerful commands and data structures but also because of its portability to migrate between DSP platforms and devices. In this appendix we will cover some of the important features of C for DSP applications. The processes of compilation linking loading and execution of C programs differ slightly among operating environments. To illustrate the process we use a general UNIX system C compiler shown in Figure as an example. C compiler translates high-level C programs into machine language that can be executed by computers or DSP processors such as the TMS320C55x. The fact that C compilers are available for a wide range of computer platforms and DSP processors makes C programming the most portable software for DSP applications. Many C programming environments include debugger programs which are useful for identifying errors in source programs. Debugger programs allow us to see values stored in variables at different points in a program and to step through the program line by line. The purpose of DSP programming is to manipulate digital signals for a specific signal processing application. To achieve this goal DSP programs must be able to organize the variables different data types describe the actions operators control the operations program flow and move data back and forth between the outside world and the program input output . This appendix provides a brief overview of the elements required for efficient programming of DSP algorithms in C language and introduces fundamental C programming concepts using C examples but does not attempt to cover all the elements in detail. C programming language used throughout this book is conformed to the ANSI C standard American .
