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MCP4XXX Digital Potentiometer Daughter Board User’s Guide
2.5.2
Note:
Using the PICDEM FS USB Demo Board
For information on how to use MPLAB-IDE, ICD 2, or any other aspect of
the PICmicro Development tool platform, please refer to the appropriate
documentation.
Table 2-3 shows the sequence of steps to demonstrate the MCP4XXXDM-DB board
(as shipped) with the PICDEM FS USB Demo Board.
TABLE 2-3:
Step Action
DEMO STEPS FOR THE PICDEM FS USB DEMO BOARD
Result
1
2
3
4
5
6
Connect ICD 2 to the PC and to the
PICDEM FS USB Demo Board
Power up and program the PICDEM
FS USB Demo Board with the file
“00106 - FS USB.hex”
Disconnect the ICD 2 from the
PICDEM FS USB Demo Board
Configure the MCP4XXXDM-DB to
the jumper settings shown in
Figure 2-9.
Insert the MCP4XXXDM-DB board
into the PICDEM FS USB Demo
Board J6 header. Ensure proper
orientation of Daughter Board to J6
Header.
Note:
You may be required to
solder a 28-pin Female
header into the J6 header
socket.
Connect U1-P1A to the V DD connec-
tion post and U1-P1B to the V SS
connection post.
—
—
PICDEM FS USB Demo Board
program should now be operating
—
—
—
7
Turn on oscilloscope and configure as —
follows:
? Channel 1 to 4 @ 1V/Division
? Channel 1 to 4 have same
ground reference point
? Time-base = 200 ms/Division
8
Connect the oscilloscope probes as
follows:
Output waveform should look similar
to Figure 2-10.
DS51621A-page 22
?
?
?
?
Channel 1 to the U1-P0W Pad
Channel 2 to the U1-P1A Pad
Channel 3 to the U1-P1B Pad
Channel 4 to the U1-P1W Pad
? 2006 Microchip Technology Inc.
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