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the master, you will also have to connect DCIN, +5 V, and GND from connector J9 on the
Digital I/O Card to external power supplies.
On the Demonstration Board, check that the factory-default positioning of jumpers is
across pins 3–5 and 4–6 of header H2.
Make the following connections from the Digital I/O Card to the Demonstration Board.
IN00 — S1
IN01 — S2
IN02 — S3
IN03 — S4
+K1 — +5 V
GND — GND
Jumpers:
H1: None
H2: As shown
H2
··
··
··
1-2
3-4
5-6
LED1 LED2 LED3 LED4
DEMO BOARD
BUZZER
Once this sample program is compiled and
SW1 SW2 SW3 SW4
running, you may press switches S1–S4 on
the Demonstration Board to toggle the input low on the corresponding channel. Inputs
IN04–IN23 can be toggled low by touching the line with a GND signal. The status of the
inputs is displayed in the Dynamic C STDIO window.
? DIGIN.C —Demonstrates the use of the digital inputs by using the Demonstration Board to
read individual input channels while an individual channel is toggled from high to low by
pressing a pushbutton switch on the Demonstration Board.
Before you run this sample program, use the same power-supply connections and the same
connections between the Digital I/O Card and the Demonstration Board as shown for the
DIGBANKIN.C sample program.
Once DIGIN.C is compiled and running, you may press switches S1–S4 on the Demon-
stration Board to toggle the input low on the corresponding channel. Inputs IN04–IN23 can
be toggled low by touching the line with a GND signal. The status of the inputs is displayed
in the Dynamic C STDIO window.
? DIGBANKOUT.C —Demonstrates writing values to a bank of outputs by using the Demon-
stration Board whose LEDs are toggled on/off via the outputs.
Before you run this sample program, connect +K1 and GND on connector J4 of the Digital
I/O Card to an external +5 V power supply. If you are not drawing power from the master,
you will also have to connect DCIN, +5 V, and GND from connector J9 on the Digital I/O
Card to external power supplies.
Make the following connections from the Digital I/O Card to the Demonstration Board.
? OUT00 — DS1
OUT01 — DS2
OUT02 — DS3
OUT03 — DS4
+K1 — +5 V
GND — GND
Once this sample program is compiled and running, the Dynamic C STDIO window will
prompt to select an output bank. Select 1 for outputs OUT00–OUT07. Next you will be
prompted to enter a hex byte value—for example, enter AA to toggle LEDs DS1 and DS3
on/off.
User ’s Manual
31
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