September 2014
Beginner to intermediate
424 pages
10h 4m
English
Content preview from Embedded C Programming
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Chapter 10
Memory and Pointers
Abstract
This chapter describes in detail how data is organized in memory and how to make use of data in C by address. The address-of operator and indirection operator are explained with detailed examples and diagrams.
Arrays and structures are revisited in this chapter to show how to use them with pointers. The special C rules concerning pointer arithmetic are described. Pointers to RAM, ROM, and to user-defined address spaces are all covered. The embedded C extension addressmod is included. This chapter also deals with pointers to functions.
Examples and exercises are for the popular PIC™ microcontroller manufactured by Microchip.
Keywords
Pointer
Address-of
Indirection
addressmod
Memory map
Function pointers ...