You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
88 lines
3.0 KiB
88 lines
3.0 KiB
/** \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 SSec_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 Class Specification</td>
|
|
* <td>USBIF Audio Class Terminal Types Specification</td>
|
|
* <td>USBIF Audio Data Formats Specification</td>
|
|
* </tr>
|
|
* <tr>
|
|
* <td><b>Usable Speeds:</b></td>
|
|
* <td>Full Speed Mode</td>
|
|
* </tr>
|
|
* </table>
|
|
*
|
|
* \section SSec_Description Project Description:
|
|
*
|
|
* Audio demonstration application. This gives a simple reference
|
|
* application for implementing a USB Audio Output device using the
|
|
* basic USB Audio drivers in all modern OSes (i.e. no special drivers
|
|
* required).
|
|
*
|
|
* On startup the system will automatically enumerate and function
|
|
* as a USB speaker. Incomming audio will output in 8-bit PWM onto
|
|
* the timer output (timer 3 for the AT90USBXXX6/7 USB AVRs, timer 1 for
|
|
* the AT90USBXXX2 controller AVRs) compare channel A for AUDIO_OUT_MONO
|
|
* mode, on channels A and B for AUDIO_OUT_STEREO and on the board LEDs
|
|
* for AUDIO_OUT_LEDS mode. 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 SSec_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>
|
|
* <td><b>Define Name:</b></td>
|
|
* <td><b>Location:</b></td>
|
|
* <td><b>Description:</b></td>
|
|
* </tr>
|
|
* <tr>
|
|
* <td>AUDIO_OUT_STEREO</td>
|
|
* <td>Makefile CDEFS</td>
|
|
* <td>When defined, this outputs the audio samples in stereo to the timer output pins of the microcontroller.</td>
|
|
* </tr>
|
|
* <tr>
|
|
* <td>AUDIO_OUT_MONO</td>
|
|
* <td>Makefile CDEFS</td>
|
|
* <td>When defined, this outputs the audio samples in mono to the timer output pin of the microcontroller.</td>
|
|
* </tr>
|
|
* <tr>
|
|
* <td>AUDIO_OUT_LEDS</td>
|
|
* <td>Makefile CDEFS</td>
|
|
* <td>When defined, this outputs the audio samples in stereo to the board LEDs.</td>
|
|
* </tr>
|
|
* <tr>
|
|
* <td>AUDIO_OUT_PORTC</td>
|
|
* <td>Makefile CDEFS</td>
|
|
* <td>When defined, this outputs the audio samples in mono to port C of the microcontroller, for connection to an
|
|
* external DAC.</td>
|
|
* </tr>
|
|
* </table>
|
|
*/ |