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Sigma DE2-70 manual SD Card Music Player

Models: DE2-70

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6.8 SD Card Music Player

DE2-70 User Manual

10/100Mbps

CAT 5 Cable

Loopback

Device

Ethernet

Driver

Figure 6.12. The setup for the Ethernet demonstration.

6.8 SD Card Music Player

Many commercial media/audio players use a large external storage device, such as an SD card or CF card, to store music or video files. Such players may also include high-quality DAC devices so that good audio quality can be produced. The DE2-70 board provides the hardware and software needed for SD card access and professional audio performance so that it is possible to design advanced multimedia products using the DE2-70 board.

In this demonstration we show how to implement an SD Card Music Player on the DE2-70 board, in which the music files are stored in an SD card and the board can play the music files via its CD-quality audio DAC circuits. We use the Nios II processor to read the music data stored in the SD Card and use the Wolfson WM8731 audio CODEC to play the music.

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Sigma DE2-70 manual SD Card Music Player

Contents

Version Copyright 2007 Terasic TechnologiesChapter 4 DE2-70 Video Utility Chapter 5 Using the DE2-70 BoardAltera DE2 Board Chapter 3 DE2-70 Control PanelAltera DE2 Board Chapter 6 Examples of Advanced DemonstrationsChapter 7 Appendix DE2-70 User Manual 1.1 Package ContentsDE2-70 Package Chapter1.2 The DE2-70 Board Assembly San Jose, California, 95134 USA Email university@altera.com 1.3 Getting HelpTerasic Technologies No. 356, Sec. 1, Fusing E. Rd Altera Corporation 101 Innovation DriveChapter Altera DE2-70 Board2.1 Layout and Components 2.2 Block Diagram of the DE2-70 Board Cyclone II 2C70 FPGA Serial Configuration device and USB Blaster circuitSDRAM Pushbutton switchesToggle switches SSRAM10/100 Ethernet controller Audio CODECVGA output NTSC/PAL/ SECAM TV decoder circuitTwo 40-pin expansion headers 2.3 Power-up the DE2-70 BoardSerial ports IrDA transceiverThe LCD display shows Welcome to the Altera DE2-70 Chapter 3.1 Control Panel SetupDE2-70 Control Panel Figure 3.1. The DE2-70 Control Panel 3.2 Controlling the LEDs, 7-Segment Displays and LCD Display DE2-70 User Manual Figure 3.3. Controlling LEDsFigure 3.4. Controlling 7-SEG display 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 FPGA/ SOPC Figure 3.13. The block diagram of the DE2-70 control panelDE2-70 User Manual Chapter 4.1 Video Utility SetupDE2-70 Video Utility 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 Chapter Using the DE2-70 Board5.1 Configuring the Cyclone II FPGA FPGA Configuring the FPGA in JTAG ModeConfiguring the EPCS16 in AS Mode 5.2 Using the LEDs and Switches Figure 5.4. Schematic diagram of the pushbutton and toggle switches FPGA Pin No Figure 5.5. Schematic diagram of the LEDsSignal Name DE2-70 User ManualDE2-70 User Manual Table 5.1. Pin assignments for the toggle switchesTable 5.2. Pin assignments for the pushbutton switches 5.3 Using the 7-segment Displays DE2-70 User Manual 5.4 Clock Circuitry DE2-70 User Manual Figure 5.8. Block diagram of the clock distributionConnector Table 5.5. Pin assignments for the clock inputs16 DIGIT LCD 5.5 Using the LCD Module5.6 Using the Expansion Header 1.8V 2.5V protection registors and diodes not shown for other portsprotection registors and diodes not shown for other ports DE2-70 User ManualDE2-70 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 SDRAM1 Figure 5.22. SDRAM schematicDE2-70 User Manual SDRAM0SSRAM 512Kx36 Figure 5.23. SSRAM schematicFigure 5.24. Flash schematic DE2-70 User ManualDRAM0A0 DE2-70 User ManualDRAM0CKE DE2-70 User ManualDE2-70 User Manual Table 5.19. SDRAM pin assignmentsSRAM Burst Address Advance DE2-70 User ManualSRAM Controller Address Status SRAM Processor Address StatusDE2-70 User Manual Table 5.20. SSRAM pin assignmentsDE2-70 User Manual Table 5.21. Flash pin assignmentsBit stream used DE270Default.sof or DE270Default.pof 6.1 DE2-70 Factory ConfigurationInstalling the Demonstrations Demonstration Setup, File Locations, and Instructions6.2 TV Box Demonstration Demonstration Setup, File Locations, and Instructions Figure 6.1. Block diagram of the TV box demonstrationmonitor Bit stream used DE270TV.sof or DE270TV.pof6.3 TV Box Picture in Picture PIP Demonstration PiPposition Bit stream used DE270TVPIP.sof or DE270TVPIP.pofDemonstration Setup, File Locations, and Instructions signalLoad the bit stream into FPGA 6.4 USB Paintbrush Demonstration Setup, File Locations, and Instructions Project directory DE270NIOSHOSTMOUSEVGABit stream used DE270NIOSHOSTMOUSEVGA.sof Nios II Workspace DE270NIOSHOSTMOUSEVGA\Software6.5 USB Device Demonstration Setup, File Locations, and Instructions Project directory DE270NIOSDEVICELED\HWBit stream used DE270NIOSDEVICELED.sof Nios II Workspace DE270NIOSDEVICELED\HW\Software6.6 A Karaoke Machine Figure 6.9. Block diagram of the Karaoke Machine demonstration Bit stream used DE2-70i2sound.sof or DE2-70i2sound.pofDemonstration Setup, File Locations, and Instructions Clock/Data Frequency Generator 6.7 Ethernet Packet Sending/ReceivingMP3/Any Audio Output Speaker Microphone Demonstration Setup, File Locations, and Instructions 6.8 SD Card Music Player Figure 6.13. Block diagram of the SD music player demonstration Demonstration Setup, File Locations, and Instructions Project directory DE270SDCardAudioPlayerBit stream used DE270SDCardAudioPlayer.sof Nios II Workspace DE270SDCardAudioPlayer\Software6.9 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 VGALCD/CRTMonitor DE2-70 User ManualLine Out Speaker6.10 Audio Recording and Playing Demonstration Setup, File Locations, and Instructions SOPCSoftware Project directory DE270AUDIO\software\projectaudio Load the Software Execution File into FPGA. note *1 Chapter AppendixRevision History Copyright Statement