摘要
8253/8254是通用可编程定时器/计数器,内含3个彼此独立的16位计数器.由于芯片本身的特性,使之在实际应用时会产生一些问题.在简单介绍了几种脉冲量测量方法后,指出了使用8253/8254测量脉冲量可能存在的问题并提出了解决方法,最后给出了BorlandC++的具体程序实现方法.
Programmable Timer/Counter 8253/8254 contains three 16 bit counters.Owing to the characteristic of this chip,there will be some problems in practice.After introducing several methods of measuring impulse signal,the existing problems were indicated and the resolvent was put forward.Borland C++ program was given in the end.
出处
《应用科技》
CAS
2003年第10期33-35,共3页
Applied Science and Technology
