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1·并利用8253定时器和8255可编程控制器发出了指定频率的声音。
Using 8253 and 8255 sent out the sound with fixed frequency.
2·硬件上，测速时采用了脉冲去抖动电路，用8253构成PWM调制器。
In hardware, pulse jitter suppression circuit is applied during velocity measuring, The core of PWM modulator is 8253.
3·在ECU仿真测试台的研究中，工控机用定时器8253发出的频率量ecu不能识别与接收。
During the research on ECU simulation testing platform, ECU can't recognize and receive the frequency emitted by industry-controlled computer through timer 8253.
4·介绍用可编程计数器8253集成芯片产生生理实验中所需要的各种电刺激波形。
This article introduced that the 8253 integrated chip of programmable counter generates kinds of waveforms for electronic stimulus needed in the physiological experiment.
5·本文提出了一种利用IBM - PC微机自身的8253芯片作为数据采集系统的定时方法，给出了应用时的编程技术和具体程序。
In this paper, a timing method is proposed which USES the 8253 IC of a IBM-PC as a data acquisition system. The programing skill and the practical procedures of an application are presented.