93 lines
3.0 KiB
Plaintext
93 lines
3.0 KiB
Plaintext
|
/** \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 Input Device Demo
|
||
|
|
*
|
||
|
|
* \section Sec_Compat Demo Compatibility:
|
||
|
|
*
|
||
|
|
* The following list indicates what microcontrollers are compatible with this demo.
|
||
|
|
*
|
||
|
|
* \li Series 7 USB AVRs (AT90USBxxx7)
|
||
|
|
* \li Series 6 USB AVRs (AT90USBxxx6)
|
||
|
|
* \li Series 4 USB AVRs (ATMEGAxxU4)
|
||
|
|
*
|
||
|
|
* \section Sec_Info USB Information:
|
||
|
|
*
|
||
|
|
* The following table gives a rundown of the USB utilization of this demo.
|
||
|
|
*
|
||
|
|
* <table>
|
||
|
|
* <tr>
|
||
|
|
* <td><b>USB Mode:</b></td>
|
||
|
|
* <td>Device</td>
|
||
|
|
* </tr>
|
||
|
|
* <tr>
|
||
|
|
* <td><b>USB Class:</b></td>
|
||
|
|
* <td>Audio Class</td>
|
||
|
|
* </tr>
|
||
|
|
* <tr>
|
||
|
|
* <td><b>USB Subclass:</b></td>
|
||
|
|
* <td>Standard Audio Device</td>
|
||
|
|
* </tr>
|
||
|
|
* <tr>
|
||
|
|
* <td><b>Relevant Standards:</b></td>
|
||
|
|
* <td>USBIF Audio 1.0 Class Specification \n
|
||
|
|
* USBIF Audio 1.0 Class Terminal Types Specification \n
|
||
|
|
* USBIF Audio 1.0 Data Formats Specification</td>
|
||
|
|
* </tr>
|
||
|
|
* <tr>
|
||
|
|
* <td><b>Supported USB Speeds:</b></td>
|
||
|
|
* <td>Full Speed Mode</td>
|
||
|
|
* </tr>
|
||
|
|
* </table>
|
||
|
|
*
|
||
|
|
* \section Sec_Description Project Description:
|
||
|
|
*
|
||
|
|
* Audio demonstration application. This gives a simple reference
|
||
|
|
* application for implementing a USB Audio Input 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 microphone. By default, the demo will produce a square wave test tone
|
||
|
|
* when the board button is pressed. If USE_TEST_TONE is not defined in the
|
||
|
|
* project makefile, incoming audio from the ADC channel 1 will be sampled
|
||
|
|
* and sent to the host computer instead.
|
||
|
|
*
|
||
|
|
* When in microphone mode, connect a microphone to the ADC channel 2.
|
||
|
|
*
|
||
|
|
* 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.
|
||
|
|
*
|
||
|
|
* <table>
|
||
|
|
* <tr>
|
||
|
|
* <th><b>Define Name:</b></th>
|
||
|
|
* <th><b>Location:</b></th>
|
||
|
|
* <th><b>Description:</b></th>
|
||
|
|
* </tr>
|
||
|
|
* <tr>
|
||
|
|
* <td>MIC_IN_ADC_CHANNEL</td>
|
||
|
|
* <td>AppConfig.h</td>
|
||
|
|
* <td>Sets the ADC channel used by the demo for the input audio samples from an attached microphone.</td>
|
||
|
|
* </tr>
|
||
|
|
* <tr>
|
||
|
|
* <td>USE_TEST_TONE</td>
|
||
|
|
* <td>AppConfig.h</td>
|
||
|
|
* <td>When defined, this alters the demo to produce a square wave test tone when the first board button is pressed
|
||
|
|
* instead of sampling the board microphone.</td>
|
||
|
|
* </tr>
|
||
|
|
* <tr>
|
||
|
|
* <td>MICROPHONE_BIASED_TO_HALF_RAIL</td>
|
||
|
|
* <td>AppConfig.h</td>
|
||
|
|
* <td>When defined, this alters the demo so that the half VCC bias of the microphone input is subtracted.</td>
|
||
|
|
* </tr>
|
||
|
|
* </table>
|
||
|
|
*/
|
||
|
|
|