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·详细说明：双音多频的DTMF信号编码程序，产生DTMF信号进行编码。- The double sound multi- frequencies DTMF signal coded program, produces the DTMF signal to carry on the code.

单片机C语言程序设计实训100例（综合设计部分），其他文件太大，见文库http://wenku.baidu.com/view/7138790490c69ec3d5bb7582.html

Many CAD users dismiss schematic capture as a necessary evil in the process of creating\r\nPCB layout but we have always disputed this point of view. With PCB layout now offering\r\nautomation of both component placement and track routing, getting the des

With more and more multi-frequency clocks being used in today's chips, especially in the communications field, it is often necessary to switch the source of a clock line while the chip is running.

基于MDK RTX 的COrtex—M3 多任务应用设计 武汉理工大学 方安平 武永谊 摘要：本文描述了如何在Cortex—M3 上使用MDK RL—RTX 的方法，并给出了一个简单的多任务应用设计。 关键词：MDK RTX，Cortex，嵌入式，ARM， STM32F103VB 1 MDK RL—RTX 和COrtex—M3 概述 MDK 开发套件源自德国Keil 公司， ...

Integrated EMI/Thermal Design forSwitching Power SuppliesWei ZhangThesis submitted to the Faculty of theVirginia Polytechnic Institute and State Universityin partial fulfillment of the requirements for the degree of Integrated EMI/Thermal Design forSwitching Power SuppliesWei Zhang(ABSTRACT)This wor ...

  This document presents design techniques and reference circuits that power Virtex™-4 FXRocketIO™ multi-gigabit transceivers (MGTs) operating at data rates below 3.125 Gb/s.When using multiple transceivers, it is sometimes preferred to power them from a switchingpower supply. H ...

  For a variety of reasons, it is desirable to charge batteriesas rapidly as possible. At the same time, overchargingmust be limited to prolong battery life. Such limitation ofovercharging depends on factors such as the choice ofcharge termination technique and the use of multi-rate/multi-s ...

Active Power提供各种系统可见性和管理工具，使您能更好了解有关电源的各种事件并最终提高电源系统的可靠性。从将基本数据集成 Active Power独有的CleanSource View(CSView)监控软件，到全托管式远程监控服务 – 我们都可为您提供相应管理关键电源基础架构所需的系统可见性和服务。 ...

《C#入门经典(第4版)》通过C#可以很容易地学习.NET Framework 3.5的强大功能，所以C#是开始您编程生涯的绝佳方式。《C#入门经典(第4版)》全面阐述了C#编程的所有方面，包括C#语言本身、Windows编程、Web编程及数据源的使用等内容。学习了新的编程技巧后，《C#入门经典(第4版)》介绍了如何高效地部署应用程序和服务，论述 ...