LPT_pr

在linux环境下编写一个控制台应用程序，程序中有一个共享的整型变量shared_var，初始值为0；创建一个线程并使其立即与主线程并发执行。新创建的线程与主线程均不断地循环，并输出shared_var 的值。主线程在循环中不断地对shared_var 进行加1操作，即每次循环shared_var 被加1；而新创建的线程则不断地对shared_var 进行减1 操作，即每次循环shared_var 被减1。观察程序运行的结果，并对你看到的现象进行解释。(Written in the linux environment a console application, the program has a shared integer variable shared_var, the initial value of 0 create A thread and make it run concurrently with the main thread immediately. The newly created thread and main thread are constantly circulating, and the output shared_var Value. The main thread in a loop constantly on shared_var are incremented, that is plus 1 for each cycle shared_var and the new line created Process is constantly on the shared_var decremented, that is, each cycle shared_var is decreased by 1. Observe the results of running the program, and you To explain the phenomenon seen.)

PCI视频采集的驱动程序，采用DMA方式实现数据到内存的传输(PCI,DMA)

VB、VC混合编程中字符串的传递，源代码，使用VC制作动态库在VC、VB中使用。(VB, VC mixed programming string transmission, the source code, the use of VC production of dynamic libraries in VC, VB use.)

基于STM32f107的多种usb驱动和应用程序(STM32f107 multiple usb drive and applications)

鼎鼎大名的Regmon的源码，使用驱动模式检测注册表变化！值得学习！(the Regmon the BBC source, the use of model-driven detection of the registry change! Worth learning!)

MC9S08AW60的定时器1输入捕获驱动程序(MC9S08AW60 Timer 1 input capture driver)

dm365gpio口驱动，编译成功，可以轮流输出高低电平.需要手动mknod，加载驱动后在命令行或在shell脚本里加入mknod /dev/dm365_gpio c 199 0(dm365gpio driver)

电机驱动加监，界面清晰，且实用，驱动后可以实时监控(Motor driver and supervisor, clear interface, and practical, can be real-time monitoring of driver )

一个简单的TDI驱动过滤模型可以自己添加要过滤的功能(A simple TDI filter driver model can add their own filtering function )

Windows2000/xp下plx9054的pci驱动（源码、工程文件），支持DMA操作。 使用ddk开发，工程可以直接编译。(plx9054 Driver under Windows2000/XP. Developed by DDK.)