May
2006, Issue 190
ARM-Based
Modern Answering Machine
Philips
ARM Design Contest 2005 First Prize
SOURCES
AND PDF
Download
the PDF of this article.
Author’s
note: I would like to thank Guy Grotke for reviewing
my contest entry and this article.
Bernard
Debbasch (bernard.debbasch@mail.com)
has more than 20 years of experience in engineering
and management (mostly in the semiconductor industry).
He graduated from the Ecole Nationale Supérieure des
Télécommunications de Bretagne in France and later moved
to Southern California. In addition to his interest
in electronics, Bernard enjoys jogging, flying model
airplanes, and sailing with his wife, Christina.
PROJECT
FILES
To
download the code and additional files, go to ftp://ftp.circuitcellar.com/pub/Circuit_Cellar/2006/190.
RESOURCES
A.
Dunkels, uIP embedded TCP/IP stack, www.sics.se/~adam/uip/.
J.
Randolph, “Low Cost Telephone Line Interface (DAA, FXO),”
TN 98, Randolph Telecom, Inc., 2005, www.midcom-inc.com/tech/tn98.htm.
T.
Sailer, “DSP Modems,” HB9JNX, 1995, www.baycom.org/~tom/ham/
da95/d_dspmod.pdf.
Transformer
and DAA information, Midcom, Inc., www.midcom-inc.com.
B.
Watson, “FSK: Signals and Demodulations,” WJ Communications,
Inc. www.wj.com/pdf/technotes/FSK_signals_demod.pdf.
SOURCES
MCB2130
Development board
Keil Software, Inc.
www.keil.com
Elite
Pro SD card
Kingston Technology Company, Inc.
www.kingston.com
ENC28J60
Ethernet controller
Microchip Technology, Inc.
www.microchip.com
LPC2138
Microcontroller
Philips Semiconductors, Inc.
www.semiconductors.philips.com
