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DE2-115: User Manual

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Figure 3-2 The <strong>DE2</strong>-<strong>115</strong> Control Panel concept<br />

The <strong>DE2</strong>-<strong>115</strong> Control Panel can be used to light up LEDs, change the values displayed on<br />

7-segment and LCD displays, monitor buttons/switches status, read/write the SDRAM, SRAM,<br />

EEPROM and Flash Memory, monitor the status of an USB device, communicate with the PS/2<br />

mouse, output VGA color pattern to VGA monitor, verify functionality of HSMC connector I/Os,<br />

communicate with PC via RS-232 interface and read SD Card specification information. The<br />

feature of reading/writing a word or an entire file from/to the Flash Memory allows the user to<br />

develop multimedia applications (Flash Audio Player, Flash Picture Viewer) without worrying about<br />

how to build a Memory Programmer.<br />

3.2 Controlling the LEDs, 7-segment Displays and LCD<br />

Display<br />

A simple function of the Control Panel is to allow setting the values displayed on LEDs, 7-segment<br />

displays, and the LCD character display.<br />

Choosing the LED tab leads to the window in Figure 3-3. Here, you can directly turn the LEDs on<br />

or off individually or by clicking “Light All” or “Unlight All”.<br />

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