In the last few years there has been a tremendous increase in the number of Pascal courses taught at various levels in schools and universities. Also with the advances made in electronics it is possible today for the majority of people to own or have access to a microcomputer which invariably runs BASIC and Pascal. A number of Pascal implementations exist and in the last two years a new Pascal specification has emerged. This specification has now been accepted as the British Standard BS6192 (1982). This standard also forms the technical content of the proposed International Standard IS07185. In addition to a separate knowledge of electronic engineering and programming a marriage of engineering and computer science is required. The present method of teaching Pascal in the first year of electronic engineering courses is wasteful. Little, if any, benefit is derived from a course that only teaches Pascal and its use with abstract examples. What is required is continued practice in the use of Pascal to solve meaningful problems in the student's chosen discipline. The purpose of this book is to make the use of standard Pascal (BS6192) as natural a tool in solving engineering problems as possible. In order to achieve this aim, only problems in or related to electrical and elec­ tronic engineering are considered in this book. The many worked examples are of various degrees of difficulty ranging from a simple example to bias a transistor to programs that analyse passive RLC networks or synthesise active circuits.

Inhalt

1 Basic Concepts.- Algorithm.- Programming languages.- Software tools.- Pascal.- Identifiers.- Pascal structure.- Comments.- Examples of bad and good programming.- 2 Scalar Data Type: Constant, Integer, Real. Input-Output.- Constant definition.- Variable declarations.- Integers.- Reals.- Pascal arithmetic.- Arithmetic functions.- Input to a program.- Output from a program.- Formatted output.- A step by step development of simple Pascal programs.- Case study 1.- Case study 2.- 3 Scalar Data Type: Char, Boolean, Enumerated and Subrange. The Array Data Structure.- Computer character set.- The data type character.- Input and output of character variables.- Standard function identifiers for character.- The data type boolean.- Operator hierarchy.- Standard functions for boolean.- Scalar data type.- Enumerated scalar data type.- Subrange scalar data type.- The array data structure.- 4 Conditional, Repetitive and Goto Statements.- Assignment statement.- Compound statement.- The if statement.- The case statement.- The while-do statement.- The repeat-until statement.- The for-statement.- The goto statement.- Case study 1.- Case study 2.- 5 Functions and Procedures.- Why use functions and procedures?.- Functions.- Local declarations within functions.- Scope of identifiers and side effects.- Procedures.- Procedures with no formal parameters.- Procedures with value parameters.- Using global variables.- Procedures with variable parameters.- Procedural and functional parameters.- Recursion.- Forward directive.- 6 Structured Data Types: Array, File, Set and Record. The Pointer Data Type.- The array structure.- Arrays as subprogram parameters.- Packed arrays.- Strings.- The file structure.- Standard Pascal procedures for files.- Textfiles and standard procedures.- The set structure.- Set operators.- The record structure.- Variant record.- The pointer data type.- 7 Case Studies.- Network transfer functions.- Transfer function analysis program.- Active filter synthesis.- Active circuit synthesis program.- Linear passive circuits.- Circuit analysis program.- Appendix A Syntax diagrams.- Appendix B Pascal special symbols.- Standard Pascal identifiers.- Description of standard functions.- References.