摘要
在以单片机为核心的多级分布式系统中,常常需要扩展单片机的串行通信口,本文分别介绍了基于SP2538专用串行口扩展芯片及Intel8251的两种串行口扩展方法,并给出了实际的硬件电路原理及相应的通信程序段。
The serial interface of microcontroller is often to be expanded in multi-step distributed system based on single-chip microcomputer. In this paper, two solutions of serial-expanding based on expert serial interface expanding chip sp2538 and Inte18251 are introduced, and the muhi-serial interface hardware circuit and the corresponding communication programs based on microcontrollers are listed.
出处
《微计算机信息》
北大核心
2005年第08Z期58-59,150,共3页
Control & Automation
基金
国家自然科学基金资助(编号:50174045)
