MCS-51系统中断响应延迟对中断控制的影响与制约

应用中断控制技术模拟3种不同的中断响应延迟，定量测定分析MCS－51 中断响应延迟中对断控制的影响，结果表明：MCS－51系统内置计使用低分系数对高率计数脉冲计数时，受中断响应延迟的影响会产生较大的计数误差，同时发现长短不同的中断响应延迟对于内置计数器的有效分频系数的限制有所不同，文中还探讨了有效使用调整模型消除计数误差的方法。

The Effect and Limit of MCS-51 System Interrupt Res ponse Delay for Interrupt Control

Three different type interrupt response delay are modelled on by applying interruptcontrol technology . The effect of mcs 51 system interrupt response delay for interrupt controlis accurately tested and analyzed. The experiment results showed when the counter within mcs 51 system is used in high frequency divider ,the smaller frequency division factor may causethe larger count mistake due to the interrupt response delay. The difference of limit that the different interrupt response delay for frequence division factor is also found out in experiments. This paper also exploers the efficient method eliminated the count mistake by applying adjustment model.