Information

Installation and Operation
© 2009 Microchip Technology Inc. DS51842A-page 25
TABLE 2-5: DEMO #2 STEPS - ECHO CHARACTER RECEIVED
Step Action Result
1 Place the two MCP2120/22 Developer’s Boards on a flat
surface about 25 cm (10 inches) apart, and with the IR
ports facing each other.
—
2 On the MCP2120/22 Developer’s Board #1:
Ensure that the jumpers are configured as in
Figure 2-2.
—
3 On the MCP2120/22 Developer’s Board #2:
Ensure that the jumpers are configured as in
Figure 2-4. Jumpers shown in green are not required
and can be left open.
—
4 On the MCP2120/22 Developer’s Boards:
Apply power to each unit via the USB connector.
On the MCP2120/22 Developer’s Boards:
The green power LED (D1) will turn on.
5 Connect PC’s Serial Ports to the DB-9 connector of each
MCP2120/22 Developer’s Board.
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6 On the PC:
Open an instance of HyperTerminal program window
attached to the PC’s Serial Port (such as COM 1) to
connect to the MCP2120/22 Developer’s Board #1.
Ensure that the window indicates that the HyperTerminal
program is connected and properly configured.
On the MCP2120/22 Developer’s Board:
—
On the PC:
The HyperTerminal window will indicate
“connected” and the selected Baud rate settings.
Note: See D.1 “Configuring the Hyperterminal®
Program”
7 On the PC:
In the HyperTerminal program window (COM 1), type
some alpha characters, such as “kLwtGh”.
On the PC:
The HyperTerminal program window will display
each character and its switched case version. So
“kLwtGh” will show “kKLlwWtTGghH”
8 Continue typing any alpha characters (upper or lower
case)
The alpha character typed and its opposite case will
be displayed (such as “aA”, “Aa”, “Bb”,...)