Terasic Altera DE2-70, User Manual

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DE2-70 User Manual
1 3
7 -SEG Displa y
1 6 x 2
LCD
LEDs LEDs
PS/2
SDRAM
Fla sh
SSRAM
SD Ca rd
Sok e t
U SB
Bla st e r
U SB
De vic e
Cont rol
Code s
Figure 3.2. The DE2 -70 Control Panel concept.
The DE2 -70 Control Panel can be used to light up LEDs, change the values displayed on 7-segment
and LCD displays, monitor buttons/switches status, read/write the SDRAM, SSRAM and Flash
Memory, monitor the status of an USB mouse, read data from a PS/2 keyboard, and read SD-CARD
specification information. The feature of reading/writing a word or an entire file from/to the Flash
Memory allows the user to develop multimedia applications (Flash Audio Player, Flash Picture
Viewer) without worrying about how to build a Memory Programmer.
3.2 Controlling the LEDs, 7-Segment Displays and LCD Display
A simple function of the Control Panel is to allow setting the values displayed on LEDs, 7-segment
displays, and the LCD character display.
Choosing the LED tab leads to the window in Figure 3.3. Here, you can directly turn the individual
LEDs on or off by selecting them or click “Light All” or “Unlight All”.