摘要
提出了一种简便的异步串行口扩展方案 .该方案采用纯软件的办法利用单片机等一类微控制器的一个外部中断源和一个 (或两个 )I/O引脚 ,成功地扩展了一个异步串行口 ,满足了很多实际应用对串行通信口扩展的需求 .
A simple solution for extension of asynchronous serial port is proposed. With software code programmed, an asynchronous serial communication port is successfully extended on a single chip controller or micro controller only using an external interrupt pin and one or two I/O pins. This solution can meet most demands for extending a serial communication port in many practical applications and makes good results.
出处
《厦门大学学报（自然科学版）》
CAS
CSCD
北大核心
2002年第3期311-314,共4页
Journal of Xiamen University：Natural Science
