October 2002
Intermediate to advanced
430 pages
14h 57m
English
Content preview from Embedded Systems Design, 2nd Edition
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
Start your free trial
Interfacing to the analogue world 175
5 Interfacing to the
analogue world
This chapter discusses the techniques used to interface to
the outside world which unfortunately is largely analogue in
nature. It discusses the process of analogue to digital conversion
and basic power control techniques to drive motors and other
similar devices from a microcontroller.
Analogue to digital conversion techniques
The basic principle behind analogue to digital conversion is
simple and straightforward: the analogue signal is sampled at a
regular interval and each sample is divided or quantised by a
given value to determine the number of given units of value that
approximate ...