摘要
介绍利用AT89C51单片机,作为可编程接口芯片的使用方法。系统扩展了二个定时/计数器、二个外部中断、一个8×8阵列键盘和8位LED显示器。从而实现了扩充系统成本的下降,同时也优化了系统的硬件结构和软件的设计。
This paper introduces the way of using AT89C51 single chip computer as programmable interface chip. This system is expanded by adding two timer/counters, two interrupt source, a 8×8 array keyboard and 8 digit LED display, which reduces the cost of enlarging system and optimizes the design of hardware and software.
出处
《上海电机学院学报》
2004年第2期94-96,共3页
Journal of Shanghai Dianji University