Terasic MTLC, User Manual

Page: 33 / 39

MTLC User Manual
31
www.terasic.com
May 22, 2014

Demonstration Batch File
Demo Batch File Folder: Camera\demo_batch
The demo batch file includes the following files:

Batch File: test.bat

FPGA Configuration File: Camera.sof

Demonstration Setup

Load the bit stream into FPGA by executing the batch file ‘test.bat’ under
Camera\demo_batch\ folder

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

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

User can use SW[17] to mirror image of the line. However, remember to press KEY[0] after
toggle SW[17]
Note: execute the test.bat under Camera\demo_batch will automatically download the .sof
file.
Table 4-2 summarizes the functional keys of the digital camera. Figure 4-12 gives a run-time
photograph of the demonstration.
Table 4-2 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
SW[0]
Off: Extend the exposure time
On: Shorten the exposure time
SW[17]
Mirror mode
HEX[7:0] Frame counter (Display ONLY)