============
MP3 Commands
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Sending Commands to the MP3 player
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Define const arrays to hold the sequence of bytes for each command you want to use.

See :ref:`VS1002` for more details on the available commands.

.. code-block:: c

	const INT8U SineWave[] = { 0x53, 0xEF, 0x6E, 0x44, 0x00, 0x00, 0x00, 0x00 };
	const INT8U Deact[] = { 0x45, 0x78, 0x69, 0x74, 0x00, 0x00, 0x00, 0x00 };
	const INT8U ModeTest[] = { 0x02, 0x00, 0x08, 0x20 };
	const INT8U ModePlay[] = { 0x02, 0x00, 0x08, 0x00 };
	const INT8U SoftReset[] = { 0x02, 0x00, 0x08, 0x04 };

Call the commands using the write function of the driver.

Set to command mode.

.. code-block:: c

	DataMode = 0;
	length = sizeof(DataMode);
	err = Ioctl(hMp3, IOCTL_MP3_SET_DATA_MODE, &DataMode, &length);


Reset player.

.. code-block:: c

	//reset the MP3 chip
	length = sizeof(SoftReset);
	memcpy(buffer, SoftReset, length);
	err = Write(hMp3, buffer, &length);

Play sine wave.

.. code-block:: c

		length = sizeof(SineWave);
		memcpy(buffer, SineWave, length);
		err = Write(hMp3, buffer, &length);

Stop player.

.. code-block:: c

		length = sizeof(Deact);
		memcpy(buffer, Deact, length);
		err = Write(hMp3, buffer, &length);