摘要
本文利用单片机89C52的三个定时/计数器得到三路计时电路测得时间,用串行接口标准RS-232和电平转换芯片MAX232来通信并把得到的时间通过单片机的串行口传送给PC机。为开发单片机的系统资源开辟了新的领域,尤其是为单片机89C52的定时/计数器的灵活用法打下了基础,同时促进了单片机系统在军事领域的应用。
The article measures the time using three timing circuit of the three time/counters of the single chip 89C52,communicates using the serial interface standard RS-232 and CMOS chip MAX232,and transmits the time to PC through the serial device of single chip.It inaugurates new area to exploiture the system source of single chip.Especially it establishes the foundation for the agility usage of time/counters of single chip 89C52.At the same time,it will promote the application of the single chip system in the military affairs area.
出处
《价值工程》
2010年第17期100-101,共2页
Value Engineering