I2S Configuration Functions

Set the I2S audio frequency.

Actual frequency may differ from the desired frequency due to available dividers and bus clock Configures the I2S audio frequency

Parameters:

[in,out]	obj	The I2S object to configure
[in]	hz	The baud rate in Hz

Configure the I2S format.

Set the number of bits per frame, configure clock polarity and phase, shift order and master/slave mode

Parameters:

[in,out]	obj	The I2S object to configure
[in]	dbits	Number of data bits per I2S frame (16, 24, or 32)
[in]	fbits	Number of bits per I2S frame (16 or 32)
[in]	polarity	Clock polarity (either 0 or 1, default = 0)

Release a I2S object.

TODO: i2s_free is currently unimplemented This will require reference counting at the C++ level to be safe

Return the pins owned by the I2S object to their reset state Disable the I2S peripheral Disable the I2S clock

Parameters:

[in]

obj

The I2S object to deinitialize

Initialize the I2S peripheral.

Configures the pins used by I2S, sets a default format and frequency, and enables the peripheral

Parameters:

[out]	obj	The I2S object to initialize
[in]	data	I2S data input/output pin
[in]	sclk	I2S clock output pin
[in]	wsel	I2S word select output pin (might be NC for PDM sources)
[in]	fdpx	I2S data input pin (for full-duplex operation, default = NC)
[in]	mclk	I2S master clock output pin (default = NC, enables master clock output when not NC)
[in]	mode	I2S mode to be applied

Configure the I2S mode.

Parameters:

[in,out]	obj	The I2S object to configure
[in]	mode	I2S mode to be applied

Configure the I2S protocol.

Parameters:

[in,out]	obj	The I2S object to configure
[in]	protocol	I2S protocol to be used