Audio aspects of the design of the SD card, this is for SOPC learning a great help, and hope that useful. After debugging code, can be run.

DE2_70_SD_Card_Audio_Player
...........................\.sopc_builder
...........................\.............\install.ptf
...........................\.............\install2.ptf
...........................\.............\preferences.xml
...........................\AUDIO.v
...........................\DE2_70_SD_Card_Audio_Player
...........................\...........................\.cdtbuild
...........................\...........................\.cdtproject
...........................\...........................\.project
...........................\...........................\.settings
...........................\...........................\.........\org.eclipse.cdt.core.prefs
...........................\...........................\.........\org.eclipse.cdt.managedbuilder.core.prefs
...........................\...........................\AUDIO.c
...........................\...........................\AUDIO.h
...........................\...........................\Debug
...........................\...........................\.....\DE2_70_SD_Card_Audio_Player.elf
...........................\...........................\.....\generated_app.sh
...........................\...........................\.....\makefile
...........................\...........................\.....\nios2_common_lib
...........................\...........................\.....\................\subdir.mk
...........................\...........................\.....\obj
...........................\...........................\.....\...\AUDIO.d
...........................\...........................\.....\...\AUDIO.o
...........................\...........................\.....\...\main.d
...........................\...........................\.....\...\main.o
...........................\...........................\.....\...\nios2_common_lib
...........................\...........................\.....\...\................\FatFileSystem.d
...........................\...........................\.....\...\................\FatFileSystem.o
...........................\...........................\.....\...\................\I2C.d
...........................\...........................\.....\...\................\I2C.o
...........................\...........................\.....\...\................\LCD.d
...........................\...........................\.....\...\................\LCD.o
...........................\...........................\.....\...\................\LED.d
...........................\...........................\.....\...\................\LED.o
...........................\...........................\.....\...\................\SDCardDriver.d
...........................\...........................\.....\...\................\SDCardDriver.o
...........................\...........................\.....\...\................\SEG7.d
...........................\...........................\.....\...\................\SEG7.o
...........................\...........................\.....\...\................\WaveLib.d
...........................\...........................\.....\...\................\WaveLib.o
...........................\...........................\.....\...\................\debug.d
...........................\...........................\.....\...\................\debug.o
...........................\...........................\.....\subdir.mk
...........................\...........................\application.stf
...........................\...........................\main.c
...........................\...........................\nios2_common_lib
...........................\...........................\................\FatFileSystem.c
...........................\...........................\................\FatFileSystem.h
...........................\...........................\................\FatInternal.h
...........................\...........................\................\I2C.c
...........................\...........................\................\I2C.h
...........................\...........................\................\

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