ASD24B201303

基于AT89C51单片机的出租车计价器的程序设计(AT89C51 microcontroller Taximeter-based program design)

IIc应用，AT24C512初始化，清零，存储，读取多字节存入 写入多字节(IIc applications, initialization, clear, store, read, write more bytes into a multi-byte)

步进电机28BYJ48型四相八拍电机，电压为DC5V—DC12V。当对步进电机施加一系列连续不断的控制脉冲时，它可以连续不断地转动。每一个脉冲信号对应步进电机的某一相或两相绕组的通电状态改变一次，也就对应转子转过一定的角度（一个步距角）。当通电状态的改变完成一个循环时，转子转过一个齿距。四相步进电机可以在不同的通电方式下运行，常见的通电方式有单（单相绕组通电）四拍（A-B-C-D-A。。。），双（双相绕组通电）四拍（AB-BC-CD-DA-AB-。。。），八拍（A-AB-B-BC-C-CD-D-DA-A。。。）(Stepping Motor 28BYJ48 four-phase eight-phase motor, the voltage DC5V-DC12V. When a series of continuous control pulses are applied to the stepper motor, it can be continuously rotated. Each pulse signal corresponds to the stepper motor of a phase or two-phase winding power state change once, also corresponds to the rotor through a certain angle (a step angle). When the change in the power-on state completes one cycle, the rotor turns one pitch. Four-phase stepper motors can be operated in different power-up modes. The common power-up modes are: single-phase winding power (ABCDA ...), double (dual-phase winding)-DA-AB-...), eight beats (A-AB-B-BC-C-CD-)

电话语音管理系统的工程项目代码，需要的请拿去使用吧，任意修改!(Telephony management system project code chunks, arbitrary changes)

高精度电压表(24bit) VB源程序,简单修改可实现多量程(precision voltage (24bit) VB program, a simple change can be realized more range)

c语言通讯录源代码，功能一般，不够完善，很，简单适合，初学者可以看，我是为了打作业才上呢(c language directory source code, functional and not perfect, really, for a simple, beginners can see, I will work to fight on?)

中国海域潮汐预报软件Chinatide的应用(China Sea tide forecasts Chinatide application software)

说明：  由晶格振动声子态密度计算迪拜温度、比热、振动熵等热力学性质的程序。(the programme for caculation of the debye temprature，specific heat, entropy and so on from the DOS of phonon )

经典的汇编语言电梯控制程序　课程设计计好帮手　有设计报告和源代码　内容详细 (Classic assembly language elevator control program curriculum designer, a good helper design report and the source code and detailed)

本作品以MSP430单片机为核心， 基于DDS原理，通过查表方式输出步进量为10HZ，频率为100HZ~2KHZ的正弦波。两路被测信号通过过零比较、异或和低通滤波整流，实现了对相位差的测量，误差小于(This works with MSP430 microcontroller as the core, based on DDS principle, by look-up table output step sizes for the 10HZ, frequency of 100HZ ~ 2KHZ sine wave. Two by the signal zero-crossing comparator, XOR, rectification and low-pass filtering, the realization of the phase of the measurement error is less than)