Serial Peripheral Interface (SPI) is not really a protocol ... Now that you’ve got that working, it’s time to step up to debugging your SPI bus! After a brief overview of the system, we ...

It is a synchronous serial communication interface used in embedded systems. The Single SPI specification (the first specification) describes the Master-Slave architecture (full-duplex), typically ...

if more than one SPI device simultaneously attempts to become a bus master. The SPI supports two DMA modes: single transfer and multi‐transfer. These modes allow the SPI to interface to higher ...

While the Raspberry Pi has very good support for an I2C bus, a lot of very cool chips – including the in system programmer for just about every ATtiny and ATmega microcontroller – use an SPI bus.