demo-it-master

ST Microcontroller 32-Bit STM32 PCB SCH(所有stm32 PCB protel 原理图和封装库) (ST Microcontroller 32-Bit STM32 PCB SCH)

测试am335xgpio功能，gpio驱动(Test am335xgpio function, GPIO driver)

用Visual C++ 6.0实现的公交客运站的站务管理系统，实现售票，退票，车辆调度，财务结算，用户管理等功能。 数据库采用SQL Sever2000 数据库中的表单和代码文件说明相见压缩包中说明文档。(用Visual C++ 6.0实现的公交客运站的站务管理系统，实现售票，退票，车辆调度，财务结算，用户管理等功能。 数据库采用SQL Sever2000 数据库中的表格和代码文件说明相见压缩包中说明文档。)

高速切削加工技术是一种先进的制造技术，具有强大的生命力和广阔的应 用前景，已成为切削加工的主流。数控插补技术是数控系统实现轨迹运动控制 的基础，插补运算是CNC系统软件实现运动控制的核心模块，插补算法的优劣 将直接影响到CNC系统的性能。因此，实现一种高精度和高速度的插补方法是 插补的关键所在。 本文在分析传统基准脉冲插补、数据采样插补的算法的基础上，着重研究 了三次NURBS曲线实时插补技术，针对部分算法的不完整或效率低，提出了 一种简单快捷的插补算法。采用NURBS曲线的矩阵表达式，将整个插补过程 分解为插补预处理和实时插补。在插补预处理中完成了大量的计算，预处理的 计算结果直接应用于实时插补，使插补算法满足了NURBS曲线插补的实时性 要求，再辅以必要的轮廓误差控制，实现了加工速度自适应于加工路径的 NURBS曲线直接插补。 本文讨论的插补算法采用C++语言实现，并在VC++6.0的编程环境中实现 了插补算法的计算机仿真，验证了算法的正确性和可行性。(The high speed cutting is one of advanced manufacture technique,which has the powerful vitality and the broad application,and already became the mainstream of machining.The interpolation technology of NC is the foundation of path s control in the CNC system,and the interpolation operation is the core module of CNC system software,which comes the motion control true.The interpolation algorithm,whose function is good or bad,directly influences the performance of CNC system.So,a kind of interpolation method with the high accuracy and high speed is the key of interpolation. Based on analyzing the traditional pulse interpolation and data sampling interpolation,this paper emphasizes on the NURBS curve real-time interpolation technology.In view of the partial algorithms which is incomplete and the low efficiency,this paper propose a simple and quick interpolation algorithm.Using the matrix representation of NURBS curve,the whole interpolation process is divided into appropriate pretreat)

LED 圣诞树，圣诞节的礼物~多种颜色的LED灯装扮成闪闪发光的圣诞树(LED Christmas trees, Christmas gift- the colors of the LED lights to dress up as a shining Christmas tree)

说明：  小日历窗口，如果日历窗口按照选择日期！ 小日历窗口，如果日历窗口按照选择日期！(Small calendar window, if the calendar window according to the selected date! Small calendar window, if the calendar window according to the selected date!)

说明：  vb界面整理与重新编辑，适用于vb6.0开发环境。(VB interface reorganization and re-editing, suitable for VB6.0 development environment.)

VB编程实现改变系统日期格式,有需要的就下载吧。(VB Programming to change the system date format, there is a need to download it.)

这是一篇有关故障录波仪如何开发的硕士论文，论文行文清楚、逻辑分明，重点讲述了故障录波器的算法，值得看。(This is a fault recorder on how to develop the master's thesis papers lines clearly and logically distinct, and highlight the fault recorder algorithm worth observing.)

利用迅雷提供的sdk,制作的demo.程序在vs2010下面可以编译运行(Using SDK provided by Xunlei, the demo. program can be compiled and run under VS2010)