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Sigma manual Examples of Advanced Demonstrations, 6.1 DE2-70 Factory Configuration, Chapter

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DE2-70 User Manual

Chapter 6

Examples of Advanced Demonstrations

This chapter provides a number of examples of advanced circuits implemented on the DE2-70 board. These circuits provide demonstrations of the major features on the board, such as its audio and video capabilities, and USB and Ethernet connectivity. For each demonstration the Cyclone II FPGA (or EPCS16 serial EEPROM) configuration file is provided, as well as the full source code in Verilog HDL code. All of the associated files can be found in the DE2_70_demonstrations folder from the DE2-70 System CD-ROM. For each of demonstrations described in the following sections, we give the name of the project directory for its files, which are subdirectories of the DE2-70_demonstrationsfolder.

Installing the Demonstrations

To install the demonstrations on your computer, perform the following

1.Copy the directory DE2_70_demonstrations into a local directory of your choice. It is important to ensure that the path to your local directory contains no spaces – otherwise, the Nios II software will not work.

6.1DE2-70 Factory Configuration

The DE2-70 board is shipped from the factory with a default configuration that demonstrates some of the basic features of the board. The setup required for this demonstration, and the locations of its files are shown below.

Demonstration Setup, File Locations, and Instructions

•Project directory: DE2_70_Default

•Bit stream used: DE2_70_Default.sof or DE2_70_Default.pof

•Power on the DE2-70 board, with the USB cable connected to the USB Blaster port. If necessary (that is, if the default factory configuration of the DE2-70 board is not currently stored in EPCS16 device), download the bit stream to the board by using either JTAG or AS programming

•You should now be able to observe that the 7-segment displays are displaying a sequence of characters, and the red and green LEDs are flashing. Also, Welcome to the Altera DE2-70is shown on the LCD display

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Sigma Examples of Advanced Demonstrations, 6.1 DE2-70 Factory Configuration, Installing the Demonstrations, Chapter

Contents

Version Copyright 2007 Terasic TechnologiesAltera DE2 Board Chapter 5 Using the DE2-70 BoardChapter 3 DE2-70 Control Panel Chapter 4 DE2-70 Video UtilityChapter 6 Examples of Advanced Demonstrations Chapter 7 AppendixAltera DE2 Board DE2-70 Package 1.1 Package ContentsChapter DE2-70 User Manual1.2 The DE2-70 Board Assembly Terasic Technologies No. 356, Sec. 1, Fusing E. Rd 1.3 Getting HelpAltera Corporation 101 Innovation Drive San Jose, California, 95134 USA Email university@altera.comAltera DE2-70 Board 2.1 Layout and ComponentsChapter 2.2 Block Diagram of the DE2-70 Board Cyclone II 2C70 FPGA Serial Configuration device and USB Blaster circuitToggle switches Pushbutton switchesSSRAM SDRAMVGA output Audio CODECNTSC/PAL/ SECAM TV decoder circuit 10/100 Ethernet controllerSerial ports 2.3 Power-up the DE2-70 BoardIrDA transceiver Two 40-pin expansion headersThe LCD display shows Welcome to the Altera DE2-70 3.1 Control Panel Setup DE2-70 Control PanelChapter Figure 3.1. The DE2-70 Control Panel 3.2 Controlling the LEDs, 7-Segment Displays and LCD Display Figure 3.3. Controlling LEDs Figure 3.4. Controlling 7-SEG displayDE2-70 User Manual 3.3 Switches and Buttons 3.4 SDRAM/SSRAM/Flash Controller and Programmer Figure 3.7. Accessing the SDRAM-U1 3.5 USB Monitoring 3. Press Load Memory Content to a File button3.6 PS2 Device 3.7 SD CARD 3.8 Audio Playing and Recording Figure 3.11. Playing audio from a selected wave file 3.9 Overall Structure of the DE2-70 Control Panel Figure 3.13. The block diagram of the DE2-70 control panel DE2-70 User ManualFPGA/ SOPC 4.1 Video Utility Setup DE2-70 Video UtilityChapter 4.2 VGA Display 4.3 Video Capture 4.4 Overall Structure of the DE2-70 Video Utility Figure 4.4. Video Capture Block Diagram Using the DE2-70 Board 5.1 Configuring the Cyclone II FPGAChapter Configuring the FPGA in JTAG Mode Configuring the EPCS16 in AS ModeFPGA 5.2 Using the LEDs and Switches Figure 5.4. Schematic diagram of the pushbutton and toggle switches Signal Name Figure 5.5. Schematic diagram of the LEDsDE2-70 User Manual FPGA Pin NoTable 5.1. Pin assignments for the toggle switches Table 5.2. Pin assignments for the pushbutton switchesDE2-70 User Manual 5.3 Using the 7-segment Displays DE2-70 User Manual 5.4 Clock Circuitry Connector Figure 5.8. Block diagram of the clock distributionTable 5.5. Pin assignments for the clock inputs DE2-70 User Manual16 DIGIT LCD 5.5 Using the LCD Module5.6 Using the Expansion Header protection registors and diodes not shown for other ports protection registors and diodes not shown for other portsDE2-70 User Manual 1.8V 2.5VDE2-70 User Manual DE2-70 User Manual Table 5.8. Pin assignments for the expansion headers5.7 Using VGA Figure 5.13. VGA horizontal timing specification DE2-70 User Manual Table 5.11. ADV7123 pin assignments5.8 Using the 24-bit Audio CODEC 5.10 PS/2 Serial Port 5.9 RS-232 Serial Port5.11 Fast Ethernet Network Controller DE2-70 User Manual Figure 5.17. Fast Ethernet schematic5.12 TV Decoder DE2-70 User Manual Figure 5.18. TV Decoder schematic5.13 Implementing a TV Encoder 5.14 Using USB Host and Device http//techtrain.microchip.com/webseminars/documents/IrDABW.pdf 5.15 Using IrDA5.16 Using SDRAM/SRAM/Flash DE2-70 User Manual Figure 5.22. SDRAM schematicSDRAM0 SDRAM1Figure 5.24. Flash schematic Figure 5.23. SSRAM schematicDE2-70 User Manual SSRAM 512Kx36DRAM0A0 DE2-70 User ManualDRAM0CKE DE2-70 User ManualDE2-70 User Manual Table 5.19. SDRAM pin assignmentsSRAM Controller Address Status DE2-70 User ManualSRAM Processor Address Status SRAM Burst Address AdvanceDE2-70 User Manual Table 5.20. SSRAM pin assignmentsDE2-70 User Manual Table 5.21. Flash pin assignmentsInstalling the Demonstrations 6.1 DE2-70 Factory ConfigurationDemonstration Setup, File Locations, and Instructions Bit stream used DE270Default.sof or DE270Default.pof6.2 TV Box Demonstration monitor Figure 6.1. Block diagram of the TV box demonstrationBit stream used DE270TV.sof or DE270TV.pof Demonstration Setup, File Locations, and Instructions6.3 TV Box Picture in Picture PIP Demonstration Demonstration Setup, File Locations, and Instructions Bit stream used DE270TVPIP.sof or DE270TVPIP.pofsignal PiPpositionLoad the bit stream into FPGA 6.4 USB Paintbrush Bit stream used DE270NIOSHOSTMOUSEVGA.sof Project directory DE270NIOSHOSTMOUSEVGANios II Workspace DE270NIOSHOSTMOUSEVGA\Software Demonstration Setup, File Locations, and Instructions6.5 USB Device Bit stream used DE270NIOSDEVICELED.sof Project directory DE270NIOSDEVICELED\HWNios II Workspace DE270NIOSDEVICELED\HW\Software Demonstration Setup, File Locations, and Instructions6.6 A Karaoke Machine Bit stream used DE2-70i2sound.sof or DE2-70i2sound.pof Demonstration Setup, File Locations, and InstructionsFigure 6.9. Block diagram of the Karaoke Machine demonstration 6.7 Ethernet Packet Sending/Receiving MP3/Any Audio Output Speaker MicrophoneClock/Data Frequency Generator Demonstration Setup, File Locations, and Instructions 6.8 SD Card Music Player Figure 6.13. Block diagram of the SD music player demonstration Bit stream used DE270SDCardAudioPlayer.sof Project directory DE270SDCardAudioPlayerNios II Workspace DE270SDCardAudioPlayer\Software Demonstration Setup, File Locations, and Instructions6.9 Music Synthesizer Demonstration Figure 6.17 illustrates the setup for this demonstration Demonstration Setup, File Locations, and InstructionsBit stream used DE270Synthesizer.sof or DE2-70Synthesizer.pof Line Out DE2-70 User ManualSpeaker VGALCD/CRTMonitor6.10 Audio Recording and Playing SOPC Software Project directory DE270AUDIO\software\projectaudioDemonstration Setup, File Locations, and Instructions Load the Software Execution File into FPGA. note *1 Revision History AppendixCopyright Statement Chapter