It demonstrates an USB Audio Device- Speaker. USB Video Driver good reference

Packet : 95302910lpc2148_usbaudio.zip filelist
Boards/
Boards/Keil/
Boards/Keil/MCB2140/
Boards/Keil/MCB2140/USBAudio/
Boards/Keil/MCB2140/USBAudio/Abstract.txt
Boards/Keil/MCB2140/USBAudio/adcuser.c
Boards/Keil/MCB2140/USBAudio/adcuser.h
Boards/Keil/MCB2140/USBAudio/audio.h
Boards/Keil/MCB2140/USBAudio/Audio.Opt
Boards/Keil/MCB2140/USBAudio/Audio.Uv2
Boards/Keil/MCB2140/USBAudio/demo.c
Boards/Keil/MCB2140/USBAudio/demo.h
Boards/Keil/MCB2140/USBAudio/Lst/
Boards/Keil/MCB2140/USBAudio/Lst/Audio.map
Boards/Keil/MCB2140/USBAudio/Obj/
Boards/Keil/MCB2140/USBAudio/Obj/Audio.elf
Boards/Keil/MCB2140/USBAudio/Startup.s
Boards/Keil/MCB2140/USBAudio/type.h
Boards/Keil/MCB2140/USBAudio/usb.h
Boards/Keil/MCB2140/USBAudio/usbcfg.h
Boards/Keil/MCB2140/USBAudio/usbcore.c
Boards/Keil/MCB2140/USBAudio/usbcore.h
Boards/Keil/MCB2140/USBAudio/usbdesc.c
Boards/Keil/MCB2140/USBAudio/usbdesc.h
Boards/Keil/MCB2140/USBAudio/usbhw.c
Boards/Keil/MCB2140/USBAudio/usbhw.h
Boards/Keil/MCB2140/USBAudio/usbreg.h
Boards/Keil/MCB2140/USBAudio/usbuser.c
Boards/Keil/MCB2140/USBAudio/usbuser.h
Boards/Keil/MCB2140/USBHID/
Boards/Keil/MCB2140/USBHID/Lst/
Boards/Keil/MCB2140/USBHID/Obj/
Boards/Keil/MCB2140/USBMem/
Boards/Keil/MCB2140/USBMem/Lst/
Boards/Keil/MCB2140/USBMem/Obj/
RV/
RV/Boards/
RV/Boards/Keil/
RV/Boards/Keil/MCB2140/
RV/Boards/Keil/MCB2140/USBAudio/
RV/Boards/Keil/MCB2140/USBAudio/Abstract.txt
RV/Boards/Keil/MCB2140/USBAudio/adcuser.c
RV/Boards/Keil/MCB2140/USBAudio/adcuser.h
RV/Boards/Keil/MCB2140/USBAudio/audio.h
RV/Boards/Keil/MCB2140/USBAudio/Audio.Opt
RV/Boards/Keil/MCB2140/USBAudio/Audio.Uv2
RV/Boards/Keil/MCB2140/USBAudio/demo.c
RV/Boards/Keil/MCB2140/USBAudio/demo.h
RV/Boards/Keil/MCB2140/USBAudio/DMA.sct
RV/Boards/Keil/MCB2140/USBAudio/Lst/
RV/Boards/Keil/MCB2140/USBAudio/Lst/Audio.map
RV/Boards/Keil/MCB2140/USBAudio/Obj/
RV/Boards/Keil/MCB2140/USBAudio/Obj/Audio.axf
RV/Boards/Keil/MCB2140/USBAudio/Startup.s
RV/Boards/Keil/MCB2140/USBAudio/type.h
RV/Boards/Keil/MCB2140/USBAudio/usb.h
RV/Boards/Keil/MCB2140/USBAudio/usbcfg.h
RV/Boards/Keil/MCB2140/USBAudio/usbcore.c
RV/Boards/Keil/MCB2140/USBAudio/usbcore.h
RV/Boards/Keil/MCB2140/USBAudio/usbdesc.c
RV/Boards/Keil/MCB2140/USBAudio/usbdesc.h
RV/Boards/Keil/MCB2140/USBAudio/usbhw.c
RV/Boards/Keil/MCB2140/USBAudio/usbhw.h
RV/Boards/Keil/MCB2140/USBAudio/usbreg.h
RV/Boards/Keil/MCB2140/USBAudio/usbuser.c
RV/Boards/Keil/MCB2140/USBAudio/usbuser.h
RV/Boards/Keil/MCB2140/USBHID/
RV/Boards/Keil/MCB2140/USBHID/Lst/
RV/Boards/Keil/MCB2140/USBHID/Obj/
RV/Boards/Keil/MCB2140/USBMem/
RV/Boards/Keil/MCB2140/USBMem/Lst/
RV/Boards/Keil/MCB2140/USBMem/Obj/

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