8251串行接口应用实验－接收端程序 串行通信接收程序source file 8251 8255 8253综合实验代码...

masm32菜单使用的例子-masm32 menu use example

JAVA学习初级变成,课本代码 有关程序计算和代码换算-JAVA study into primary, textbooks code calculation and the procedure code conversion

学生选课系统，自己毕业设计时做的，往大家指点！-students, their graduation design done, to instruct you!

本程序为16X16点阵显示程序，是用74HC154做扫描，P0-P2为数据输出来现实。-This program is 16X16 dot matrix display program, is to use 74HC154 done scanning, P0-P2 for data output to the reality.

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交通灯的变换----汇编语言实现-Traffic lights change---- assembly language to achieve

S2试验板 AT89C51 晶振12M 1-S12控制的数码显示-S2 test AT89C51 crystal plate 12M1-S12-controlled digital display

HT46R23控制电磁炉程序功能齐全已经试验成功效果不错有人需要的请下载-HT46R23 functional control Induction procedure has been successfully tested its effectiveness was required, download

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.

51单片机状态顺序编码,监控程序在主程序中 -Coding sequence of 51 single-chip status, monitoring procedures in the main program in