SPI on Pi - Serial Peripheral Interface on Raspberry Pi 2 with bcm2835 library

In this video tutorial Serial Peripheral Interface, aka SPI, is introduced. SPI is use with a prototype add-on board we are developing that gives the Raspberry Pi additional GPIO including analog input and output. The bcm2835.h library is used with a C program to communicate with an AD5592 SPI device. An oscilloscope is used to view the SPI signals and to demonstrate the analog output capability of the prototype board On the Raspberry 2.