This FPGA-based USB communication program. By establishing the quartus in SOPC, establish PIO mouth and NIOS to write drivers and registers, realize USB communications. Upon examination, the program can communicate.

USB_save\.metadata\.lock
........\.........\.log
........\.........\.plugins\com.altera.nj.ui\dialog_settings.xml
........\.........\........\org.eclipse.cdt.core\.log
........\.........\........\....................\hello_world_0.1429520498891.pdom
........\.........\........\....................\hello_world_0_syslib.1429520498704.pdom
........\.........\........\................make.core\.log
........\.........\........\.........................\hello_world_0.sc
........\.........\........\.........................\hello_world_0_syslib.sc
........\.........\........\.........................\specs.c
........\.........\........\.........................\specs.cpp
........\.........\........\.....................ui\dialog_settings.xml
........\.........\........\................ui\dialog_settings.xml
........\.........\........\.............ore.resources\.history\19\b0c8d9da3be700141bbffa20e6bbecf3
........\.........\........\..........................\........\23\f0daff933ce700141bbffa20e6bbecf3
........\.........\........\..........................\........\34\b039dcda3be700141bbffa20e6bbecf3
........\.........\........\..........................\........\6\f1daff933ce700141bbffa20e6bbecf3
........\.........\........\..........................\........\a0\0140bdda3be700141bbffa20e6bbecf3
........\.........\........\..........................\........\.4\805090443ce700141bbffa20e6bbecf3
........\.........\........\..........................\........\.7\0240bdda3be700141bbffa20e6bbecf3
........\.........\........\..........................\........\.f\b139dcda3be700141bbffa20e6bbecf3
........\.........\........\..........................\........\fa\0040bdda3be700141bbffa20e6bbecf3
........\.........\........\..........................\.projects\hello_world_0\.indexes\33\history.index
........\.........\........\..........................\.........\.............\........\af\history.index
........\.........\........\..........................\.........\.............\........\properties.index
........\.........\........\..........................\.........\............._syslib\.indexes\33\history.index
........\.........\........\..........................\.........\....................\........\af\history.index
........\.........\........\..........................\.........\....................\........\properties.index
........\.........\........\..........................\.root\.indexes\history.version
........\.........\........\..........................\.....\........\properties.index
........\.........\........\..........................\.....\........\properties.version
........\.........\........\..........................\.....\5.tree
........\.........\........\..........................\.safetable\org.eclipse.core.resources
........\.........\........\..................untime\.settings\org.eclipse.cdt.debug.core.prefs
........\.........\........\........................\.........\org.eclipse.cdt.managedbuilder.core.prefs
........\.........\........\........................\.........\org.eclipse.cdt.ui.prefs
........\.........\........\........................\.........\org.eclipse.core.resources.prefs
........\.........\........\........................\.........\org.eclipse.debug.ui.prefs
........\.........\........\........................\.........\org.eclipse.ui.editors.prefs
........\.........\........\........................\.........\org.eclipse.ui.ide.prefs
........\.........\........\........................\.........\org.eclipse.ui.prefs
........\.........\........\............debug.core\.launches\hello_world_0 Nios II HW configuration.launch
........\.........\........\..................ui\launchConfigurationHistory.xml
........\.........\........\............ui.ide\dialog_settings.xml
........\.........\........\...............workbench\dialog_settings.xml
........\.........\........\........................\workbench.xml
........\.........\version.ini
........\.sopc_builder\filters.xml
........\.............\install.ptf
........\.............\install2.ptf
........\.............\preferences.xm

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