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							93 lines
						
					
					
						
							3.0 KiB
						
					
					
				| /** \file
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|  *
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|  *  This file contains special DoxyGen information for the generation of the main page and other special
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|  *  documentation pages. It is not a project source file.
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|  */
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| 
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| /** \mainpage Audio Output Device Demo
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|  *
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|  *  \section Sec_Compat Demo Compatibility:
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|  *
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|  *  The following list indicates what microcontrollers are compatible with this demo.
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|  *
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|  *  \li Series 7 USB AVRs (AT90USBxxx7)
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|  *  \li Series 6 USB AVRs (AT90USBxxx6)
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|  *  \li Series 4 USB AVRs (ATMEGAxxU4)
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|  *
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|  *  \section Sec_Info USB Information:
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|  *
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|  *  The following table gives a rundown of the USB utilization of this demo.
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|  *
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|  *  <table>
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|  *   <tr>
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|  *    <td><b>USB Mode:</b></td>
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|  *    <td>Device</td>
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|  *   </tr>
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|  *   <tr>
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|  *    <td><b>USB Class:</b></td>
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|  *    <td>Audio Class</td>
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|  *   </tr>
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|  *   <tr>
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|  *    <td><b>USB Subclass:</b></td>
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|  *    <td>Standard Audio Device</td>
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|  *   </tr>
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|  *   <tr>
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|  *    <td><b>Relevant Standards:</b></td>
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|  *    <td>USBIF Audio 1.0 Class Specification \n
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|  *        USBIF Audio 1.0 Class Terminal Types Specification \n
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|  *        USBIF Audio 1.0 Data Formats Specification</td>
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|  *   </tr>
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|  *   <tr>
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|  *    <td><b>Supported USB Speeds:</b></td>
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|  *    <td>Full Speed Mode</td>
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|  *   </tr>
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|  *  </table>
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|  *
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|  *  \section Sec_Description Project Description:
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|  *
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|  *  Audio demonstration application. This gives a simple reference
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|  *  application for implementing a USB Audio Output device using the
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|  *  basic USB Audio 1.0 drivers in all modern OSes (i.e. no special drivers
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|  *  required).
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|  *
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|  *  On start-up the system will automatically enumerate and function
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|  *  as a USB speaker. Outgoing audio will output in 8-bit PWM onto
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|  *  the timer 3 output compare channel A for AUDIO_OUT_MONO mode, on
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|  *  timer 3 channels A and B for AUDIO_OUT_STEREO and on PORTC as a signed
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|  *  mono sample for AUDIO_OUT_PORTC. Audio output will also be indicated on
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|  *  the board LEDs in all modes. Decouple audio outputs with a capacitor and
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|  *  attach to a speaker to hear the audio.
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|  *
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|  *  Under Windows, if a driver request dialogue pops up, select the option
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|  *  to automatically install the appropriate drivers.
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|  *
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|  *  \section Sec_Options Project Options
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|  *
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|  *  The following defines can be found in this demo, which can control the demo behaviour when defined, or changed in value.
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|  *
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|  *  <table>
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|  *   <tr>
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|  *    <th><b>Define Name:</b></th>
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|  *    <th><b>Location:</b></th>
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|  *    <th><b>Description:</b></th>
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|  *   </tr>
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|  *   <tr>
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|  *    <td>AUDIO_OUT_STEREO</td>
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|  *    <td>AppConfig.h</td>
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|  *    <td>When defined, this outputs the audio samples in stereo to the timer output pins of the microcontroller.</td>
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|  *   </tr>
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|  *   <tr>
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|  *    <td>AUDIO_OUT_MONO</td>
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|  *    <td>AppConfig.h</td>
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|  *    <td>When defined, this outputs the audio samples in mono to the timer output pin of the microcontroller.</td>
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|  *   </tr>
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|  *   <tr>
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|  *    <td>AUDIO_OUT_PORTC</td>
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|  *    <td>AppConfig.h</td>
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|  *    <td>When defined, this outputs the audio samples in mono to port C of the microcontroller, for connection to an
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|  *        external DAC.</td>
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|  *   </tr>
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|  *  </table>
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|  */
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| 
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