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Installation and Operation
2.4.1.2.2
Steps to Operate the 250-byte S -> P Data Transfer Demo
The 250-byte S -> P data transfer demo is shown by following the steps in Table 2-5.
TABLE 2-5:
Step Action
250-BYTE S -> P DATA TRANSFER DEMO - PALM? PDA
Result
1
2
3
4
5
6
7
8
9
10
Place both devices on a flat surface about 25 cm (10”)
apart, with the IR ports facing each other.
On the MCP215X Data Logger Demo Board:
Ensure that jumpers JP1 and JP2 are shorted (closed
position).
On the MCP215X Data Logger Demo Board:
Ensure that jumper JP7 is shorted (closed position).
On the MCP215X Data Logger Demo Board:
Insert the 9V battery into the battery holder (BT1) or
plug a 9V AC-to-DC power supply (such as those
supplied with some Microchip development tools) into
the 9V DC connection plug (J2).
You may need to depress the RESET switch if the
LCD does not display the Microchip program revision
information, followed by the directions for demo
program selection.
On the MCP215X Data Logger Demo Board:
Depress Switch 2 and Switch 3 (SW2 + SW3)
simultaneously.
On the PDA:
Tap on the MCP215XDemo icon.
On the PDA:
Tap on the Connect button.
On the PDA:
Tap on the 123 button.
On the PDA:
Tap on the number ( 5 ) button.
On the PDA:
Tap on the Done button.
—
—
—
On the MCP215X Data Logger Demo Board:
The green power LED (D10) will turn on, the DTR LED
will be on, while all the other UART flow control
signals (CTS, RTS, CD, RI and DSR) will be off. The
RD7 and RD6 LEDs will also be on.
On the MCP215X Data Logger Demo Board:
This causes the 250-byte S->P data transfer program
to be executed.
The LCD will display that this program was selected
and then update the display to show the two options
for transmitting data from the PIC16F877 to the
MCP2150:
1. CTS (transmit data bytes while CTS is low)
2. 64 bytes (transmit 64 data bytes when CTS
goes low)
On the PDA:
The screen will display the MCP215XDemo program
window.
On the PDA:
The Connect button will change to the Disconnect
button.
On the PDA:
This opens the numeric keyboard.
On the PDA:
In the upper-left corner of the window, the typed
number will appear.
On the PDA:
This closes the numeric keyboard window. The
number that was typed is shown on the
“TX Data (ASCII) =” line.
? 2004 Microchip Technology Inc.
DS51516A-page 27
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