diff options
Diffstat (limited to 'Demos/Device/ClassDriver/AudioInput/AudioInput.txt')
-rw-r--r-- | Demos/Device/ClassDriver/AudioInput/AudioInput.txt | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/Demos/Device/ClassDriver/AudioInput/AudioInput.txt b/Demos/Device/ClassDriver/AudioInput/AudioInput.txt index 830163f3b..fea31b66e 100644 --- a/Demos/Device/ClassDriver/AudioInput/AudioInput.txt +++ b/Demos/Device/ClassDriver/AudioInput/AudioInput.txt @@ -50,11 +50,13 @@ * 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. + * 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. * - * To use, connect a microphone to the ADC channel 1. + * 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> |