串行外设接口在单片机系统中的应用

Application of serial peripheral interface in a microcontroller

介绍了串行外设接口 (Serial Peripheral Interface,SPI)的概念、组成、工作原理和优点 ,详细讨论了 SPI在单片机应用系统中的实现方法。

The conception,composition,working principle and advantages of serial peripheral interface(SPI)are introduced in this paper. Besides, the implementations of SPI in microcontroller systems are discussed in detail.