Sigma DE2-70 User Manual

DE2-70 User Manual

7-SEG Display

16x2
LCD

LEDs

PS/2

SDRAM

Flash

SSRAM

SD Card

Soket

USB

Blaster

USB

Device

Control

Codes

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”.