Getting Started with STM32F103: SPI (Serial Peripheral Interface)
What Is SPISPI Pins SetupSPI InitializingSPI Transfer FunctionResultsSPI, which stands for Serial Peripheral Interface, is a standard with a very specific hardware interface. A connection is between a master and a slave, with the master typical being a processor, and the slave being a peripheral such as a sensor, flash memory device, or a modem chip. It can also be used for processor to processor communications, but...See more on blog.embeddedexpert.ioanalog
Introduction to SPI Interface | Analog Devices
This article provides a brief description of the SPI interface followed by an introduction to Analog Devices'' SPI enabled switches and muxes, and how they help reduce the number of digital GPIOs in