SMBus协议分析及其在双MCU通讯中的应用

SMBus Protocol Analyse and Its Using in the Communication between 2 MCU

SMBus是一种高效率的同步串行总线。本文在分析其通讯协议的基础上,认为采用SMBus通讯协议作为双MCU间的通讯协议可以达到既节省引脚又减少时钟周期的效果。最后,以C8051F310为例,给出了具体实现方案和程序流程。

SMBus is a kind of synchronous serial bus with high efficiency. In this paper, its protocol is analysesed,and a good effect with little need of pin magnitude and clock time can be seen in the communication between 2 MCU via SMBus.A program flow chart on the communication is also provide,as an example using C8051F310 via SMBus.