X-Git-Url: http://git.linex4red.de/pub/USBasp.git/blobdiff_plain/4dece08bef10a23a9702b6ddb67401400119cbce..ec537fd84d6ad3fd0dfa1b55efa2c2d554c1db48:/Demos/Device/ClassDriver/AudioInput/AudioInput.txt

diff --git a/Demos/Device/ClassDriver/AudioInput/AudioInput.txt b/Demos/Device/ClassDriver/AudioInput/AudioInput.txt
index aba582d67..fea31b66e 100644
--- a/Demos/Device/ClassDriver/AudioInput/AudioInput.txt
+++ b/Demos/Device/ClassDriver/AudioInput/AudioInput.txt
@@ -3,7 +3,7 @@
  *  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 SSec_Compat Demo Compatibility:
@@ -27,7 +27,7 @@
  *    <td><b>USB Class:</b></td>
  *    <td>Audio Class</td>
  *   </tr>
- *   <tr> 
+ *   <tr>
  *    <td><b>USB Subclass:</b></td>
  *    <td>Standard Audio Device</td>
  *   </tr>
@@ -43,19 +43,21 @@
  *   </tr>
  *  </table>
  *
- *  \section SSec_Description Project Description: 
+ *  \section SSec_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. Incoming audio from the ADC channel 1 will
- *  be sampled and sent to the host computer.
- *  
- *  To use, connect a microphone to the ADC channel 1.
- *  
+ *
+ *  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.
  *
@@ -70,6 +72,12 @@
  *    <td><b>Description:</b></td>
  *   </tr>
  *   <tr>
+ *    <td>USE_TEST_TONE</td>
+ *    <td>Makefile LUFA_OPTS</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>Makefile LUFA_OPTS</td>
  *    <td>When defined, this alters the demo so that the half VCC bias of the microphone input is subtracted.</td>
@@ -81,3 +89,4 @@
  *   </tr>
  *  </table>
  */
+