Sigma DE2-70 manual Controlling the LEDs, 7-Segment Displays and LCD Display

DE2-70 User Manual

7-SEG Display

16x2 LCD

SDRAM

Flash

USB Blaster

SSRAM

Control PS/2

Codes

USB

Device

SD Card

Soket

LEDs

Figure 3.2. The DE2-70Control Panel concept.

The DE2-70Control 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”.

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