是非常重要的PDF文档的VHDL

ARM7嵌入式经典程序调试，很适合ARM初学者学习，欢迎下载交流。-ARM7 Embedded classic program debugging, it is suitable for beginners to learn ARM are welcome to download the exchange.

helicpter paper model from nu

学生成绩管理工作是学校学生管理工作的重要组成部分，现在相当一部分学校的学生成绩管理工作仍沿用手工方式。随着学校规模的扩大、学生人数的增加，效率低下、容易出错的手工方式越来越不适应实际管理工作的需要，按照软件工程原理和数据库技术开发学生成绩管理系统已成为学生管理部门的迫切需要。-student performance management is the management school students an important component, considerable part of the school management of student achievement is still used manual. With the increased scale of the schools, the number of students increases, inefficient and error-prone manual increasingly unable to meet the actual needs of management, in accordance with principles of software engineering and database technology student performance management systems have become students of management an urgent need.

　介绍了一种运用DSP (数字信号处理器)控制的基于以太网传输的低成本高音质语音 监控系统,该系统主要由语音采集模块和语音传输模块组成。-Introduced the use of a DSP (digital signal processor)-controlled, low-cost Ethernet-based high-quality transmission of voice control system, the system mainly by the voice acquisition module and voice transmission module.

给出了沉浸式虚拟维修仿真系统的框架，从样机建模和交互技术两个方面对其关键技术进行了研究．提出 了虚拟维修样机的概念，通过定义样机部件的约束运动和交互特征来实现其所要求功能，而交互技术则主要集中在 抓取和防穿越处理上．建立了基于Jack系统的沉浸式虚拟维修仿真原型系统，并以某机构的拆装为例对其进行了初 步的应用验证-Give the Immersive Virtual Maintenance Simulation System framework, from prototype modeling and interactive technology for its two key technology areas were studied. Put forward the concept of a virtual prototype of repair, by the definition of prototype components bound to exercise and interactive features of implementation of its functional requirements, and the interactive technology was mainly concentrated in the crawl up and deal with anti-crossing. Jack set up a system based on Immersive Virtual Maintenance Simulation prototype system and the dismantling of an institution as an example of its application for a preliminary verification

数字频率计的设计可以分为测量计数和显示。其测量的基本原理是计算一定时间内待测信号的脉冲个数，这就要求由分频器产生标准闸门时间信号，计数器记录脉冲个数，由控制器对闸门信号进行选择，并对计数器使能断进行同步控制。控制器根据闸门信号确定最佳量程。-The design of digital frequency meter can be divided into measurement and display count. The basic principle of its measurement is calculated under test signal within a certain period of time the number of pulses, which have a standard requirement by the divider gate time signal pulse counter records the number of signals from the controller to choose the gates and counters to make off synchronous control can be carried out.Controller based on the gate signal to determine the optimum range.

this the minarm system that ihad been designed

IC设计中应该遵守的十大原则。很有指导意义。

操作系统引导的一些介绍,对学习引导的有很大的帮助与提高-Guide the introduction of some of the operating system on the learning guide are of great help and improve

A 3-node example for ad-hoc simulation with DSDV