摘要
PC机中的实时时钟INT8H和INT1CH为用户提供了一个实现定时的手段,但其定时周期固定为18.2次/s即54.9ms。在很多数据采集、实时测控场合,这个定时显得太长了,而且使用不灵活,不能方便地实现任意时间间隔定时。本文提出了一种方法,可以很好地解决这一问题,能方便地实现精确到微秒级的任意定时。
In a personal computer the real-time clock inter-rupt INT 8H and INT 1CH are provided to us a method fortiming. But there is an unchangeable timing-Period of 54.9ms. In many real-time data acquisition and control sys-toms nds is a too long period and is inflexible. A methodwhich can realise accurate any-time Period thoing, and a Cprogram is given to implement this method.
出处
《测控技术》
CSCD
北大核心
1996年第5期58-59,共2页
Measurement & Control Technology