用单脉冲发生器的输出脉冲作为中断源，每按一次按键产生一次中断申请，中断服务程序将在实验箱的显示屏显示一个字符“R”-Single-pulse generator output pulse as interrupt sources, each generated by a disruption of a key application for interrupt service routine to the display box in the experiment shows a charact

45KHz声波发生程序 利用资源T0。每次是个脉冲，连续发声音。-45KHz sound procedures for use of resources occurs T0. Each is a pulse, continuous-fat sounds.

1、用单次脉冲申请中断，在中断处理程序中使P1.0的输出状态发生反转，并通过发光二极管观察P1.0的电平。 2、通过本实验加深对8051单片机中断系统的理解，学习外部中断的基本使用方法及相关编程。 -1 and disrupted by single pulse application in interrupt handlers make P1.0 output state reversals, and by observation of light emitting diode P1.

1、用单次脉冲申请中断，在中断处理程序中使P1.0的输出状态发生反转，并通过发光二极管观察P1.0的电平。 2、通过本实验加深对8051单片机中断系统的理解，学习外部中断的基本使用方法及相关编程。-1 and disrupted by single pulse application in interrupt handlers make P1.0 output state reversals, and by observation of light emitting diode P1.0