/**
\defgroup doc_driver_spi SPI Drivers



\section doc_driver_spi_master_basic_and_practice SPI Basics and Best Practice

The serial peripheral interface (SPI) is a synchronous serial communication
interface.

SPI devices communicate in full duplex mode using a master-slave
architecture with a single master. The master device originates the frame for
reading and writing. Multiple slave devices are supported through selection
with individual slave select (SS) lines.

*/
