Microchip Technology Photodiode PGAPICtail, Руководство пользователя

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Photodiode PGA PICtail™ Daughter Board User’s Guide
DS51514A-page 12
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2004 Microchip Technology Inc.
2.3.1 PICkit 1 Flash Starter Kit
1. Remove any PICmicro microcontroller that may be in the evaluation socket.
2. Connect the USB cable to the PC and to the PICkit 1 Flash Starter Kit board. The
status LEDs (green POWER and yellow BUSY in the LED array) should light up.
It is easiest to use this board when it lays directly on a bench top.
2.3.2 Signal Analysis PICtail Daughter Board
This board plugs into the PICkit 1 Flash Starter Kit’s expansion header J3 (Figure 2-1),
and must not cover the LED array. There should be no change in the status LEDs on
the PICkit Flash Starter Kit board once it is plugged in.
2.3.3 Photodiode PGA PICtail™ Daughter Board
If you would rather use the MCP6S92 PGA, take it out of the anti-static bag and replace
the already-installed MCP6S22 PGA.
1. Plug this board into, and directly above, the Signal Analysis PICtail Daughter
Board (Figure 2-1). There should be no change in the status LEDs on the PICkit
Flash Starter Kit board once it is plugged in.
2.1 Set-up Verification
1. Select the Real Time Mode radio button.
2. Click on the Strip Chart button.
3. Change the sample speed to 20 sample/secs.
4. Click on the green GO button; the strip-chart will show the measured output of
the Photodiode PGA PICtail™ Daughter Board.
5. Move the photodiode close to a light source, such as a desk lamp, and verify that
the strip-chart changes with light intensity (e.g., Figure 2-2).
FIGURE 2-2: Strip Chart.