docs: Generate a separate docs build for each port.

Using Damien's approach where conf.py and topindex.html are
shared by all ports.

1 files changed, 0 insertions, 72 deletions

diff --git a/docs/tutorial/amp_skin.rst b/docs/tutorial/amp_skin.rst
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-The AMP audio skin
-==================
-
-Soldering and using the AMP audio skin.
-
-.. image:: img/skin_amp_1.jpg
-    :alt: AMP skin
-    :width: 250px
-
-.. image:: img/skin_amp_2.jpg
-    :alt: AMP skin
-    :width: 250px
-
-The following video shows how to solder the headers, microphone and speaker onto the AMP skin.
-
-.. raw:: html
-
-    <iframe style="margin-left:3em;" width="560" height="315" src="http://www.youtube.com/embed/fjB1DuZRveo?rel=0" frameborder="0" allowfullscreen></iframe>
-
-For circuit schematics and datasheets for the components on the skin see :ref:`hardware_index`.
-
-Example code
-------------
-
-The AMP skin has a speaker which is connected to ``DAC(1)`` via a small
-power amplifier.  The volume of the amplifier is controlled by a digital
-potentiometer, which is an I2C device with address 46 on the ``IC2(1)`` bus.
-
-To set the volume, define the following function::
-
-    import pyb
-    def volume(val):
-        pyb.I2C(1, pyb.I2C.MASTER).mem_write(val, 46, 0)
-
-Then you can do::
-
-    >>> volume(0)   # minimum volume
-    >>> volume(127) # maximum volume
-
-To play a sound, use the ``write_timed`` method of the ``DAC`` object.
-For example::
-
-    import math
-    from pyb import DAC
-
-    # create a buffer containing a sine-wave
-    buf = bytearray(100)
-    for i in range(len(buf)):
-        buf[i] = 128 + int(127 * math.sin(2 * math.pi * i / len(buf)))
-
-    # output the sine-wave at 400Hz
-    dac = DAC(1)
-    dac.write_timed(buf, 400 * len(buf), mode=DAC.CIRCULAR)
-
-You can also play WAV files using the Python ``wave`` module.  You can get
-the wave module `here <http://micropython.org/resources/examples/wave.py>`_ and you will also need
-the chunk module available `here <http://micropython.org/resources/examples/chunk.py>`_.  Put these
-on your pyboard (either on the flash or the SD card in the top-level directory).  You will need an
-8-bit WAV file to play, such as `this one <http://micropython.org/resources/examples/test.wav>`_,
-or to convert any file you have with the command::
-
-    avconv -i original.wav -ar 22050 -codec pcm_u8 test.wav
-    
-Then you can do::
-
-    >>> import wave
-    >>> from pyb import DAC
-    >>> dac = DAC(1)
-    >>> f = wave.open('test.wav')
-    >>> dac.write_timed(f.readframes(f.getnframes()), f.getframerate())
-
-This should play the WAV file.