P0071 datasheet(32/43 Pages) ALTERA

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Demonstration Source Code

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Project directory: tPad_Camera

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Bit stream used: tPad_Camera.sof

Demonstration Batch File

Demo Batch File Folder: tPad_Camera\demo_batch

The demo batch file includes the following files:

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Batch File: tPad_Camera.bat

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FPGA Configure File: tPad_Camera.sof

Demonstration Setup

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Load the bit stream into FPGA by execute the batch file ‘tPad_Camera.bat’ under

tPad_Camera\demo_batch\ folder

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The system enters the FREE RUN mode automatically. Press KEY[0] on the DE2-115 board

to reset the circuit

•

Press KEY[2] to take a shot of the photo; you can press KEY[3] again to switch back to

FREE RUN mode and you should be able to see whatever the camera captures on the LCD

display

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User can use the SW[0] and KEY[1] to set the exposure time for brightness adjustment of the

image captured. When SW[0] is set to Off, the brightness of image will be increased as KEY[1]

is pressed longer. If SW[0] is set to On, the brightness of image will be decreased as KEY[1]

is pressed shorter

Note: execute the tPad_Camera.bat under tPad_Camera\demo_batch will automatically

download the .sof file.

Table 4-3 summarizes the functional keys of the digital camera. Figure 4-13 gives a run-time

photograph of the demonstration.

Table 4-3 The functional keys of the digital camera demonstration

Component Function Description

KEY[0]

Reset circuit

KEY[1]

Set the new exposure time (use with SW[0] )

KEY[2]

Trigger the Image Capture (take a shot)

KEY[3]

Switch to Free Run mode

P0071 Datasheet(PDF) 32 Page - Altera Corporation

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