DefinePK

Abstract

This article shows the design and implementation of a finite state machine that describes the operation of the SPI protocol in a standard way, which is a serial protocol used for transfers with peripherals with low / medium bandwidth, all the technical detail of a specific application, and emphasis is placed on making a description with a low level of abstraction to reduce the amount of hardware resource used, arriving at a general-purpose IP CORE type solution. The state machine controls the sequence of the communication that comply with the protocol. By having a design of low complexity, it achieves to be easily adaptable for a number of plates (shields) that proliferate in a significant number of academic and commercial applications.