Altera tPad DE2-115 User manual

1

1
CONTENTS
Chapter 1 DE2-115 Package ..................................................................................4
1.1 Package Contents..................................................................................................................................4
1.2 The DE2-115 BoardAssembly..............................................................................................................5
1.3 Getting Help .........................................................................................................................................6
Chapter 2 Introduction of the Altera DE2-115 Board............................................7
2.1 Layout and Components........................................................................................................................7
2.2 Block Diagram of the DE2-115 Board...................................................................................................9
2.3 Power-up the DE2-115 Board..............................................................................................................12
Chapter 3 DE2-115 Control Panel........................................................................14
3.1 Control Panel Setup ............................................................................................................................14
3.2 Controlling the LEDs, 7-segment Displays and LCD Display............................................................16
3.3 Switches and Push-buttons..................................................................................................................18
3.4 SDRAM/SRAM/EEPROM/Flash Controller and Program-mer ...........................................................19
3.5 USB Monitoring .................................................................................................................................21
3.6 PS/2 Device ........................................................................................................................................22
3.7 SD Card..............................................................................................................................................23
3.8 RS-232 Communication......................................................................................................................23
3.9 VGA...................................................................................................................................................24
3.10 HSMC ..............................................................................................................................................25
3.11 IR Receiver .......................................................................................................................................26
3.12 Overall Structure of the DE2-115 Control Panel ................................................................................27
Chapter 4 Using the DE2-115 Board....................................................................29
4.1 Configuring the Cyclone IV E FPGA ..................................................................................................29
4.2 Using Push-buttons and Switches........................................................................................................32

2
4.3 Using LEDs ........................................................................................................................................34
4.4 Using the 7-segment Displays .............................................................................................................36
4.5 Clock Circuitry ...................................................................................................................................38
4.6 Using the LCD Module.......................................................................................................................39
4.7 High Speed Mezzanine Card...............................................................................................................40
4.8 Using the Expansion Header ...............................................................................................................45
4.9 Using 14-pin General Purpose I/O Connector......................................................................................50
4.10 Using VGA.......................................................................................................................................51
4.11 Using the 24-bit Audio CODEC ........................................................................................................53
4.12 RS-232 Serial Port ............................................................................................................................54
4.13 PS/2 Serial Port.................................................................................................................................55
4.14 Gigabit Ethernet Transceiver .............................................................................................................56
4.15 TV Decoder ......................................................................................................................................59
4.16 Implementing a TV Encoder..............................................................................................................60
4.17 Using the USB Interface....................................................................................................................61
4.18 Using IR ...........................................................................................................................................62
4.19 Using SRAM/SDRAM/FLASH/EEPROM/SD Card..........................................................................63
Chapter 5 DE2-115 System Builder .....................................................................70
5.1 Introduction ........................................................................................................................................70
5.2 General Design Flow ..........................................................................................................................70
5.3 Using DE2-115 System Builder...........................................................................................................71
Chapter 6 Examples of Advanced Demonstrations .............................................77
6.1 DE2-115 Factory Configuration ..........................................................................................................77
6.2 TV Box Demonstration .......................................................................................................................78
6.3 USB Paintbrush ..................................................................................................................................80
6.4 USB Device........................................................................................................................................82
6.5 A Karaoke Machine.............................................................................................................................84
6.6 SD Card Demonstration ......................................................................................................................86
6.7 SD Card Music Player.........................................................................................................................89
6.8 PS/2 Mouse Demonstration.................................................................................................................93

3
6.9 IR Receiver Demonstration.................................................................................................................96
6.10 Music Synthesizer Demonstration ...................................................................................................100
6.11 Audio Recording and Playing..........................................................................................................103
6.12 Web Server Demonstration..............................................................................................................106
Chapter 7 Appendix ..........................................................................................115
7.1 Revision History............................................................................................................................... 115
7.2 Copyright Statement.......................................................................................................................... 115

4
Chapter 1
DE2-115 Package
The DE2-115 package contains all components needed to use the DE2-115 board in conjunction
with a computer that runs the Microsoft Windows OS.
1
1. .1 1 P Pa ac ck ka ag ge e C Co on nt te en nt ts s
Figure 1-1 shows a photograph of the DE2-115 package.
Figure 1-1 The DE2-115 package contents
The DE2-115 package includes:
The DE2-115 board.
USB Cable for FPGA programming and control.
DE2-115 System CD containing the DE2-115 documentation and supporting materials,
including the User Manual, the Control Panel, System Builder and Altera Monitor Program
utility, reference designs and demonstrations, device datasheets, tutorials, and a set of laboratory
exercises.
CD-ROMs containing Altera‟s Quartus® II Web Edition and the Nios® II Embedded Design
Suit Evaluation Edition software.

5
Bag of six rubber (silicon) covers for the DE2-115 board stands. The bag also contains some
extender pins, which can be used to facilitate easier probing with testing equipment of the
board‟s I/O expansion headers.
Clear plastic cover for the board.
12V DC desktop power supply.
Remote controller
1
1. .2 2 T Th he e D DE E2 2- -1 11 15 5 B Bo oa ar rd d A As ss se em mb bl ly y
To assemble the included stands for the DE2-115 board:
Assemble a rubber (silicon) cover, as shown in Figure 1-2, for each of the six copper stands on
the DE2-115 board
The clear plastic cover provides extra protection, and is mounted over the top of the board by
using additional stands and screws
Figure 1-2 The feet for the DE2-115 board

6
1
1. .3 3 G Ge et tt ti in ng g H He el lp p
Here are the addresses where you can get help if you encounter any problem:
Altera Corporation
101 Innovation Drive San Jose, California, 95134 USA
Email: [e-mail]
Terasic Technologies
No. 356, Sec. 1, Fusing E. Rd. Jhubei City, HsinChu County, Taiwan, 302
Email: [e-mail]
Tel.: [phone]
Web: DE2-115.terasic.com

7
Chapter 2
Introduction of the Altera DE2-115 Board
This chapter presents the features and design characteristics of the DE2-115 board.
2
2. .1 1 L La ay yo ou ut t a an nd d C Co om mp po on ne en nt ts s
A photograph of the DE2-115 board is shown in Figure 2-1 and Figure 2-2. It depicts the layout of
the board and indicates the location of the connectors and key components.
Figure 2-1 The DE2-115 board (top view)

8
Figure 2-2 The DE2-115 board (bottom view)
The DE2-115 board has many features that allow users to implement a wide range of designed
circuits, from simple circuits to various multimedia projects.
The following hardware is provided on the DE2-115 board:
Altera Cyclone® IV 4CE115 FPGA device
Altera Serial Configuration device –EPCS64
USB Blaster (on board) for programming; both JTAG and Active Serial (AS) programming
modes are supported
2MB SRAM
Two 64MB SDRAM
8MB Flash memory
SD Card socket
4 Push-buttons
18 Slide switches
18 Red user LEDs
9 Green user LEDs
50MHz oscillator for clock sources
24-bit CD-quality audio CODEC with line-in, line-out, and microphone-in jacks
VGA DAC (8-bit high-speed triple DACs) with VGA-out connector
TV Decoder (NTSC/PAL/SECAM) and TV-in connector
2 Gigabit Ethernet PHY with RJ45 connectors
USB Host/Slave Controller with USB type A and type B connectors
RS-232 transceiver and 9-pin connector
PS/2 mouse/keyboard connector
IR Receiver
2 SMA connectors for external clock input/output

9
One 40-pin Expansion Header with diode protection
One High Speed Mezzanine Card (HSMC) connector
16x2 LCD module
In addition to these hardware features, the DE2-115 board has software support for standard I/O
interfaces and a control panel facility for accessing various components. Also, the software is
provided for supporting a number of demonstrations that illustrate the advanced capabilities of the
DE2-115 board.
In order to use the DE2-115 board, the user has to be familiar with the Quartus II software. The
necessary knowledge can be acquired by reading the tutorials “Getting Started with Altera’s DE2-115
Board” (tut_initialDE2-115.pdf) and “Quartus II Introduction”(which exists in three versions based on the design
entry method used, namely Verilog, VHDL or schematic entry). These tutorials are provided in the directory
DE2_115_tutorials on the DE2-115 System CD that accompanies the DE2-115 kit and can also be found on
Terasic‟s DE2-115 web pages.
2
2. .2 2 B Bl lo oc ck k D Di ia ag gr ra am m o of f t th he e D DE E2 2- -1 11 15 5 B Bo oa ar rd d
Figure 2-3 gives the block diagram of the DE2-115 board. To provide maximum flexibility for the
user, all connections are made through the Cyclone IV E FPGA device. Thus, the user can configure
the FPGAto implement any system design.
Figure 2-3 Block Diagram of DE2-115