Ethernet Controller, which is alive
on the Internet. However, for your
home or office network, you will
want to set the IP address to match
your LAN settings.
Remember, you can change the
port address and IP address in the
Easy Ethernet Controller firmware.
So, be sure what you enter here
matches the firmware if you decid-
ed to make a change.
The middle Telnet window in
Photo 2 appears after clicking the
Connect button in the top window.
The banner "EASY ETHERNET" is
sent from the Easy Ethernet
Controller, as well as the LED messages that follow.
The prompt character (>) tells
you the Easy Ethernet Controller
NUTS & VOLTS
The Standard for checking
Good enough to be the
choice of Panasonic,
Pioneer, NBC, ABC, Ford,
JVC, NASA and thousands
of independent service
Locate shorted or leaky
components or conditions
to the exact spot in-circuit
Still cutting up the pcb,
and unsoldering every
part trying to guess at
where the short is?
Your DVM shows the same shorted reading all
along the pcb trace. LeakSeeker 82B has the
resolution to find the defective component.
And with a 60 day trial period, satisfaction Touch pads along the trace, and LeakSeeker
guaranteed or money-back policy, the only beeps highest in pitch at the defect’s pad. Now
thing you can lose is all the time you’re you can locate a shorted part only a quarter of
currently spending on trying to repair all an inch away from a good part. Short can be
those dogs you’ve given up on. from 0 to 150 ohms
CapAnalyzer 88A LeakSeeker 82B
Available at your distributor, or call 561-487-6103
Electronic Design Specialists www.eds-inc.com
Inexpensive enough to pay for itself in just
one day’s repairs. At $179, it’s affordable.
has been contacted and is ready to
go to work manipulating the LED.
After hitting the Enter key, the
one-character prompt becomes an
At this point, I entered a "1" to
illuminate the LED on the Easy
Ethernet Controller board. I didn't
have to hit Enter after entering the
1, but for clarity I did so here.
Next, I extinguished the LED by
entering "0" followed by the Enter
key. Examining the Easy Ethernet
Controller source code will reveal
that all characters sent to the Easy
Ethernet Controller are echoed to
the Telnet client.
Only a 1 or 0 will affect the
LED. For those of you running
Win2K, Photo 3 is the way it will
look to you.
TCP/IP is by far the most spoken word when someone talks
about the Internet. TCP uses a logical connection to make sure that
the data between nodes is not compromised. UDP does no such thing
and really doesn't care if the data
gets there or not.
The good news is that most of
the time the UDP generated data
does get where it's going without
The Easy Ethernet Controller
takes advantage of this. A UDP
application is included inside the
Easy Ethernet Controller firmware,
and to demonstrate this easy way to
communicate, I've written a simple
VB program to exercise the Easy
Ethernet Controller using your LAN
connection or over the Internet.
Like TCP, UDP works with IP
addresses and ports. The main difference in the two protocols is that
UDP is more like using a serial port
while TCP has "rules" that must be
followed to send and receive data.
Photo 4 is a shot of the UDP VB
program in action. When you type
into the OUTGOING DATA window,
the UDP utility in the VB program is
hardcoded to send the data to the
Easy Ethernet Controller's UDP
The Easy Ethernet Controller