EEWebPULSE_2011_i0018.pdf
(
4258 KB
)
Pobierz
EE
Web
PULSE
EE
Web.com
Issue 18
November 1, 2011
David L. Jones
World’s Preeminent
Engineering Video
Blogger
Electrical Engineering Community
It’s all abou
t
connections.
EE
Web
Electrical Engineering Community
students
hobbyists
discussions
white papers
technical documents
indus
try experts
links
resources
engineers
Contact Us For Advertising Opportunities
reference designs
1.800.574.2791
advertising
@
eeweb.com
application notes
www.eeweb.com/advertising
lighting
power
community
sensor
microcontroller
wireless
The user-to-user forum is for everyone, from
design engineers to hobbyists, to discuss
technology, products, designs and more.
Join the discussions that match your interest
or offer your expertise to others.
Join the discussion now at:
www.digikey.com/techxchange
Digi-Key is an authorized distributor for all supplier partners. New products added daily.
© 2011 Digi-Key Corporation, 701 Brooks Ave. South, Thief River Falls, MN 56701, USA
Digi-Key is an authorized distributor for all supplier partners. New products added daily.
TABLE OF CONTENTS
4
David L. Jones
ELECTRONICS DESIGN ENGINEER; SYDNEY, AUSTRALIA
Interview with David L. Jones - Engineering Video Blogger
9
μWatch 2 Concept
BY
DAVID L. JONES
Jones describes his idea for the construction of a scientific calculator wristwatch.
Featured Products
11
Forward Error Correction: Choosing
13
Between Hard-Decision and Soft-
Decision Codes
BY
FRANK CHANG
WITH VITESSE
An introduction to Vitesse Semiconductor’s promising new forward error-correction methods.
Electrical Measurement Considerations
for Nanoscale Devices and Materials
BY
ROBERT GREEN
WITH KEITHLEY
17
Green offers important considerations for nanoscale device and materials testing.
19
RTZ - Return to Zero Comic
3
EE
Web |
Electrical Engineering Community
Visit
www.eeweb.com
INTERVIEW
David L. Jones
World’s Preeminent Engineering Video Blogger
How did you get into
electronics/engineering and
when did you start?
The YouTube video telling the
story is
here
.
David L. Jones - Electronics Design Engineer; Sydney, Australia
Very similar to many others in the
industry around my time, I started
by taking things apart and trying
to figure out how they worked. And
then I got a Tandy/Radio Shack 50-
in-1 Electronics Kit when I was
about six or seven, and I never
looked back.
What are your favorite
hardware tools that you use?
The new 3000 series Infiniivision
scope is pretty darn nice. Having
1,000,000 waveform updates per
second is just phenomenal.
I still have a soft spot for my first
Multimeter—an analog Micronta
18 range job I bought with my
saved pocket money when I was,
well, I don’t really remember,
way before 10. I do like to dust it
off occasionally and make some
measurements for old time’s sake.
I could have only one software tool
it would be a Web browser.
I’ve had the same Phillips
screwdriver for about 30 years. It
just seems to fit everything. The
funny thing is I keep losing it, but
it always seems to show up again,
like Indiana Jones’s hat. I must be
connected to it in some way.
What is the hardest/trickiest
bug you have ever ixed?
The next one most likely.
One rather nasty one though was
on a third party TMS320 DSP
based data logger that ran a Forth
based OS written in some German
compiler I didn’t understand.
We’d get a data glitch about once
or twice a week, so setting up to
trigger off the event or debug it
was completely hit and miss, and
no doubt took a while.
What are your favorite
software tools that you use?
The Web is now the ultimate
software tool. The information
revolution has completely and
permanently changed the
landscape of electronics design. If
I’m one of those engineers that
simply MUST have a REAL
calculator within reach at all times.
None of this phone or Windows
calculator rubbish. There is just
something special about hardware
dedicated to and designed for a
specific task.
4
EE
Web |
Electrical Engineering Community
Visit
www.eeweb.com
INTERVIEW
The design was spread over
five boards in a cube-shaped
arrangement, so the ground
system was rather nasty. It turned
out to be a bizarre combination of
some FPGA timing combined with
some marginal signal integrity and
a silicon bug rolled into one, and
throw in an air-conditioning on/off
switch thing that ensured the bug
mostly only showed up at night. I
couldn’t even explain it if I tried.
of them on the About page. It all
seemed very impersonal.
would peak pretty quickly, as I
didn’t think many would want
to watch a weekly video show
with some guy just talking off-
the-cuff about electronics. But I
didn’t count on the popularity of
YouTube as a search engine, and
continuous non-stop growth in
viewer numbers which I still have
to this day. Encouragement came
in droves, so the enthusiasm to
keep it up was there, so I just
kept on pumping out content on a
regular basis. People seemed to
love having a personality in front of
the camera instead of just a voice
over as was common on many
other electronics YouTube videos.
I saw a few unrelated video blogs
around and I liked the idea, and
then realized no one had done
an electronics video blog. I was
nervous at the idea, and had no
idea what to do, but decided to just
dust off an old 320×240 webcam
and record whatever came into
my head just for fun.
What is on your bookshelf?
• ArtofElectronics
• The20thAnniversaryedition
of the collective works of
Dilbert
• TI and NatSemi analog and
digital databooks I kept for
old time’s sake, plus some
really good app notebook
collections.
• And my own book,
TheArtof
InternetDating
.
Always remember
that ground ain’t
ground. When a
circuit starts acting
strange, point your
finger at the ground
system—guilty until
proven innocent.
I originally just called it the
Electronics Engineering Video
Blog, and I asked for name
suggestions in the first episode
because I didn’t like the name. But
everyone else thought different,
and
EEVblog j
ust eventually stuck.
It wasn’t long before the show got
its own YouTube channel, domain
name, Wordpress blog, iTunes
podcast, and forum, almost exactly
as you see it today. I’ve tried to
change as little as possible in
terms of content and appearance
over all that time. The rest, as they
say, is history.
As much as I love paper, deep
down I know that ebook readers
are the future, and their time is
now. I love my Kindle.
I didn’t like the result, but I knew
enough not to try and perfect
things, because then it will never
get off the ground. You have to start
somewhere, so I just swallowed
my pride and uploaded the
video to my personal YouTube
account and posted it to the aus.
electronics Usenet group. To my
surprise, most people liked it and
subscribed, and I instantly had 50
or so people waiting for another
episode. I thought the novelty
would wear off, and the audience
When did you decide to start
your Video blog and how did
that come about?
April 4th 2009. I was talking with
someone about electronics blogs,
and thought about starting one
to complement my existing web
page approach, but there were
quite a lot of electronics text blogs
out there, so I didn’t see much
point in it. And text blogs seemed
rather boring, as you never got
to really know the person behind
it. At best you’d get a fuzzy photo
How did the Amp Hour come
about?
Before the video blog idea I
actually thought it would be a
good idea to do an
electronics
radio show,
I don’t remember why.
But I had far from a radio voice,
and I figured no one would want to
listen to me yap on, so I dropped
the idea, and the enthusiasm
5
EE
Web |
Electrical Engineering Community
Visit
www.eeweb.com
Plik z chomika:
TirNaNog
Inne pliki z tego folderu:
EEWebPULSE_2011_i0001.pdf
(4037 KB)
EEWebPULSE_2011_i0002.pdf
(7364 KB)
EEWebPULSE_2011_i0005.pdf
(3678 KB)
EEWebPULSE_2011_i0003.pdf
(6357 KB)
EEWebPULSE_2011_i0004.pdf
(5328 KB)
Inne foldery tego chomika:
2012
2013
2014~
Zgłoś jeśli
naruszono regulamin