Circuit Cellar Issue 257 December 2011-PDF

Issue #257
December 2011
Theme: Programmable Logic

TASK MANAGER—Embedded Community, by C. J. Abate, p. 4
NEW PRODUCT NEWS, p. 8
TEST YOUR EQ SOLUTIONS—p. 13
CROSSWORD—p. 74
Sound Tone Detection with a PSoC (Part 2): The Software & Sensing, by Guido Ottaviani, p. 14
The (VI)sualizer: A Smart Electronic Load, by Curt Terwilliger, p. 24
Sleep-Stage Alarm Clock: An MCU-Based System for Processing EEG Data, by Michael Bohn, Tristan Money, Richard Neden, & Keita Sasaki, p. 38
THE DARKER SIDE— CE Marking: A Process to Ensure Product Conformity, by Robert Lacoste, p. 46
EMBEDDED IN THIN SLICES—Getting Started with Embedded Linux (Part 2): Choosing a Platform for Your System, by Bob Japenga, p. 54
ABOVE THE GROUND PLANE—Stepper Motor Drive (Part 3): Torques, by Ed Nisley, p. 58
THE CONSUMMATE ENGINEER— EMI and Data Integrity, by George Novacek, p. 64
FROM THE BENCH— Fly-By-Wire Wheelchair (Part 2): Bluetooth Wheelchair Control, by Jeff Bachiochi, p. 68
PRIORITY INTERRUPT—40 Years and Still Going Strong, by Steve Ciarcia, p. 80