弹簧-质量阻尼器模型

刚刚找到的USB开发的资料，感觉写的很好，共享给大家。-have just found the USB development of the information, the feeling was good for everyone to share.

运放选型 运算放大器的结构形式主要有三种：模块、混合电路和单片集成电路。对于设计工程师来说，不仅是要知道所用产品的型号，而且还应熟悉生产这些产品的工艺，从而能够从一类放大器中选出一种放大器做特定的应用。-Selection of operational amplifier OPAMP structure There are three main types: modules, hybrid circuits and monolithic integrated circuit. Design Engineer for example, not only to know the product you are using models, but also familiar with the production process of these products in order to be able to elect one Class A amplifier amplifier make specific applications.

游戏开发文档设计书： -game design document files : Documents game design document : document the development of the game design document : Documents game design document :

对嵌入式系统的指令编程和系统结构进行了详细的介绍，以及常用单片机的接口介绍-Instructions for embedded system programming and system architecture for a detailed introduction, as well as the commonly used interface MCU Introduction

本文介绍了一种控制普通阀门的阀门控制器的设计方案，该阀门控制器带有工业现场总线PROFIBUS－DP 的接口，可以实现阀门的远程控制和网络控制。本文主要的着力点为介绍利用PROFIBUS－DP 专用芯片SPC3 开发PROFIBUS－DP 设备中需要注意的一些问题，包括硬件接口设计，有关PROFIBUS－DP 规范标准的一些设计要点，以及利用PROFIBUS－DP 诊断功能的方法。本文对设计其它Profibus DP从站节点有很好的参考价值!-This paper presents a general valve control valve controller design program The valve controller with industrial PROFIBUS-DP interface. The valve can be achieved remote control and network control. This paper mainly focus on the use of PROFIBUS-DP SPC3 ASIC development PROFIB U.S.-DP equipment necessary to pay attention to a number of issues, including the hardware interface design, The PROFIBUS-DP standards in a number of design features, and the use PROFIBUS-DP diagnostic function method. In this paper, the design of other Profibus DP slave nodes are of value!

看名字拉-saw the name Rafah

mx27开发板原理图，在原厂基础上作了很大修改，接近产品化，很有参考价值-mx27 sch

关于ARM的启动代码的说明及如何烧写的详细过程。可以用于在线编程-Start-up code on the ARM note, and how detailed the process programmer. Can be used in online programming

工程技术文档：NDS游戏机系统描述文档（英文版），包括NDS内存地址、中断、LCD控制、卡读写等全套描述，非常详细！-Engineering and technical documents: NDS game system described in the document (in English), including the NDS memory address, interrupt, LCD control, card reader etc. described in great detail!