Board Support Package

Low-level board drivers: SPI, I2C, I2S buses and the volume ADC. More...

Collaboration diagram for Board Support Package:

Topics
	ADC / Volume potentiometer
	Potentiometer sampling on ADC1 and mapping to PCM5242 digital volume.
	I2C bus
	Shared I2C master bus (expander, DAC control, fuel gauge).
	I2S bus
	I2S0 master TX stream to the PCM5242 DAC.
	SPI buses
	Display on SPI2 (HSPI), SD card on SPI3 (VSPI); both on native IOMUX pins.

Detailed Description

Low-level board drivers: SPI, I2C, I2S buses and the volume ADC.