定时器 0

Keil C51编写的基于51单片机简单的逻辑控制(Keil C51 prepared 51 MCU-based logic control)

说明：  一個類似Windows裡的小畫家，功能簡便，能選擇顏色(A similar small Windows painters, features simple, able to select the color)

STC89C52八位密码锁论文，包括制作资料和原理图/PCB/BOM,及C代码。可做成实物(STC89C52 eight locks papers, including the production of information and schematic/PCB/BOM, and C code. Can be made in kind)

5kW开关磁阻电机工程应用C源代码，主要用在采矿和电动汽车行业。(5kW switched reluctance motor engineering applications C source code, mainly used in the mining and electric vehicle industry.)

OOFEM是一个开源多物理并行有限元程序的面向对象的架构。这个项目的目的是提供高效率和强大的有限元计算工具，以及提供高度模块化和可扩展性的发展环境。(OOFEM is an object oriented architecture of an open source multi - Physical parallel finite element program. The purpose of this project is to provide efficient and powerful finite element computing tools and to provide a highly modular and extensible environment for development.)

实现了放大，缩小，时间轴，点击事件，光标等

matlab Image processing code

linux http tcp ip的简单服务器，请使用unix或linux访问。本机地址和端口号127.0.0.1：9734访问。

AD7927的驱动代码用的是STM32系列的单片机没有用内部的SPI而使用了外部IO端口模拟！ AD7927 driver code, using the STM32 series microcontroller, no internal SPI, and the use of external IO port simulation!

本论文设计了由AT89C52单片机为控制核心,用红外线为监测装置的防盗报警系统。该系统中红外对管作为红外线的发射和接收部分。发射部分采用红外发光二极管，而使用光敏三极管作为接收部分，接收红外发光二极管发出的红外线（不可见光）。单片机将通过内部的软件系统检测到接收管的导通或截止状态,并根据检测到的信号状态,进行判断并输出报警信号, 直至按复位按钮或电源开关。声光报警信号由9014三极管驱动构成声光报警电路,进行声光同时报警。电源部分采用变压器将220V交流市经变压器降压，桥式整流器整流，电解电容滤波，三端稳压管78L05稳压，最后得到整机要求的+5V稳定直流电源。实验表明，本系统成功运行。(This thesis is designed by AT89C52 microcontroller as the control center for monitoring device with infrared burglar alarm system. The system of infrared tube as infrared transmitting and receiving section. Emitting portion using infrared light emitting diode, a phototransistor as a receiving portion to receive the infrared ray emitted from the infrared light emitting diodes (not visible). The microcontroller will be detected by the internal software system to the turned on or off state of the receiver tube, and according to the detected signal state, to determine and output an alarm signal until a reset button or the power switch. Audible and visual alarm signal by 9014 transistor drive constitute sound and light alarm circuit, sound and light alarm at the same time. The power part of the transformer 220V AC City by the step-down transformer, bridge rectifier rectifier, electrolytic capacitor filter, three-terminal regulator 78L05 regulator, and finally get the machine requirements+5V)