1个检测波形的小程序。可以测量波形的长度

具有关机记忆功能的定时器程序，工厂生产流水线用。-With memory function timer shutdown procedures, factory production lines to use.

lcd1602，简单的液晶显示程序,我用的是51单片机，将程序下载到单片机上，上电成功后，液晶屏就会自动显示提前设定好的要显示的内容，要想设定显示内容，只需在编程里将输出内容改成要输出的内容就可，超级简单，绝对可以用，

通过AT89C51,可以对LCD 进行读和写.-Through the AT89C51, can be carried out on the LCD to read and write.

c51 led菜单 程序 功能 上下选择菜单-c51 led program features up and down menu selection menu

一个简单的汇编程序源代码-a simple compilation of source code

基于51的蓝牙车程序，你只需按着程序接线即可，内附手机APP，有摇杆按钮控制，并且可实现重力感应

水波效果公用子程序。-wave effect common subroutine.

编译原理实验，用lex和yacc编写的简单绘图工具-Compilation Principle experiments, lex and yacc with a simple drawing tools to prepare

程序在masm5.0下编译通过,望大家有什么问题或看法能与我联系讨论，我的email:xiangyuan_122@163.com-the programme will be finished under masm5.0,please keep touch with me if you have some problems and suggestions. My Email address is xiangyuan 122@163.com

1，消除按键的抖动问题 因为按键在闭合或断开过程中出现一段抖动期，主要由于按键的不稳定性引起的，这时会呈现一串页脉冲，时间的长短和开关的机械特性有关。一般在5ms~10ms之间。为保证CPU对键的一次闭合作一次处理，必须去抖动。在键的稳定闭合或断开时读键的状态。 2，据EICE51原理图编写并调试一个键输入子程序，其功能为判断键盘上有无键输入，若有键入，作去抖动处理后，计算输入键的键号送累加器A。-eliminate jitter button issues as keys or disconnect the closure process for some jitter period, mainly due to the instability of the keys to the cause, then it will result in a bunch of pages pulse, the duration and switches on the mechanical properties. General ~ 10ms between 5ms. To ensure that the CPU in a pair of keys a close cooperation, must go jitter. The key to the stability closed or disconnected when reading the key state. 2, EICE51 schematics prepared and debug a key input subroutine, and its function of determining whether keys on the keyboard input, if typing for to handle jitter, the admission of Bond, Bond sent accumulator A.