/** \file * * This file contains special DoxyGen information for the generation of the main page and other special * documentation pages. It is not a project source file. */ /** \mainpage Audio Output Device Demo * * \section Sec_Compat Demo Compatibility: * * The following list indicates what microcontrollers are compatible with this demo. * * - Series 7 USB AVRs (AT90USBxxx7) * - Series 6 USB AVRs (AT90USBxxx6) * - Series 4 USB AVRs (ATMEGAxxU4) * * \section Sec_Info USB Information: * * The following table gives a rundown of the USB utilization of this demo. * * * * * * * * * * * * * * * * * * * * * * *

USB Mode:	Device
USB Class:	Audio Class
USB Subclass:	Standard Audio Device
Relevant Standards:	USBIF Audio 1.0 Class Specification \n * USBIF Audio 1.0 Class Terminal Types Specification \n * USBIF Audio 1.0 Data Formats Specification
Usable Speeds:	Full Speed Mode

* * \section Sec_Description Project Description: * * Audio demonstration application. This gives a simple reference * application for implementing a USB Audio Output device using the * basic USB Audio 1.0 drivers in all modern OSes (i.e. no special drivers * required). * * On start-up the system will automatically enumerate and function * as a USB speaker. Outgoing audio will output in 8-bit PWM onto * the timer 3 output compare channel A for AUDIO_OUT_MONO mode, on * timer 3 channels A and B for AUDIO_OUT_STEREO and on PORTC as a signed * mono sample for AUDIO_OUT_PORTC. Audio output will also be indicated on * the board LEDs in all modes. Decouple audio outputs with a capacitor and * attach to a speaker to hear the audio. * * Under Windows, if a driver request dialogue pops up, select the option * to automatically install the appropriate drivers. * * \section Sec_Options Project Options * * The following defines can be found in this demo, which can control the demo behaviour when defined, or changed in value. * * * * * * * * * * * * * * * * * * * * * * *

Define Name:	Location:	Description:
AUDIO_OUT_STEREO	AppConfig.h	When defined, this outputs the audio samples in stereo to the timer output pins of the microcontroller.
AUDIO_OUT_MONO	AppConfig.h	When defined, this outputs the audio samples in mono to the timer output pin of the microcontroller.
AUDIO_OUT_PORTC	AppConfig.h	When defined, this outputs the audio samples in mono to port C of the microcontroller, for connection to an * external DAC.