摘要
介绍了一款饭店桌面无线点菜系统,硬件上采用AT89C52单片机作为系统的控制核心,应用键盘、数据收发、汉字显示、存储的扩展、看门狗硬件复位等技术,给出了其硬件电路原理、软件编程思路及应用程序,最后对设计中应注意的器件选择问题进行了说明。
This paper introduces a vegetables -order system, which adopts an AT89C52 single-chip in hardware as the control core. Using a keyboard ,data receive and dispatch, the chinese characters manifestation, memory expand and the watchdog hardware reset technique, this paper gives the hardware electric circuit principles and the software program way of thinking and apply procedure.
