DaoZha

IDA findcrypt plugin v2

LCD应用显示keil编写非常实用的C程序(LCD display keil prepared very practical application of C-program)

用C51编写的电子万年历时钟，并亲测好用(C51 prepared electronic calendar, and pro-test useful)

使用MSP430G2553芯片的定时器进行中断计时的四位数码管显示分钟和秒钟时间(Use MSP430G2553 chip timer interrupt timing four digital display minutes and seconds)

说明：  spi模拟i2s，实现音频播放，网上的参考，不易找到，供大家分享(spi simulation i2s, for audio playback, online reference, easy to find for people to share)

atmega1281与lcd3202的接口控制程序，能够完成3202的全部显示功能。(atmega1281 and lcd3202 interface control program, to complete the full 3202 display.)

查询式矩阵键盘，可以用数码管显示也可以用液晶显示屏显示，我用了lcd1602显示！(Inquiry matrix keyboard, can be displayed by digital tube, can also be displayed with LCD display, I used the LCD1602 display!)

ADDERS USING DIFFERENT COMBINATIONS

labview倒立摆上位机程序，是2013年9月分全国电子设计大赛的作品，但是可惜的是，电子大赛不能用电脑，很遗憾，发上来让大家参考，写的不好，希望多包涵(labview handstand put crew procedures, 2013 September, 2011 National Design Competition works, but unfortunately, can not use a computer electronic contest, unfortunately, made up for our reference, badly written, I hope more than covered)

步进电机是将电脉冲信号转变为角位移或线位移的开环控制电机，是现代数字程序控制系统中的主要执行元件，应用极为广泛。。在非超载的情况下，电机的转速、停止的位置只取决于脉冲信号的频率和脉冲数，而不受负载变化的影响，当步进驱动器接收到一个脉冲信号，它就驱动步进电机按设定的方向转动一个固定的角度，称为“步距角”，它的旋转是以固定的角度一步一步运行的。可以通过控制脉冲个数来控制角位移量，从而达到准确定位的目的；同时可以通过控制脉冲频率来控制电机转动的速度和加速度，从而达到调速的目的。(Stepper motor is an open loop control motor which transforms electrical pulse signal into angular displacement or linear displacement. It is the main executive element in modern digital control system, and is widely applied. In the case of non overloaded, the motor speed and stop position depends only on the pulse frequency and pulse number, regardless of load changes, when the stepper driver receives a pulse signal, it drives stepper motor to set the direction of rotation of a fixed angle, called "step", it is the rotation of the fixed point of the operation step by step. We can control the angular displacement by controlling the number of pulses, so as to achieve the goal of accurate positioning. At the same time, we can control the speed and acceleration of motor rotation by controlling the pulse frequency, so as to achieve the purpose of speed regulation.)