first
共 656 篇文章
first 相关的电子技术资料，包括技术文档、应用笔记、电路设计、代码示例等，共 656 篇文章，持续更新中。
dsPIC33FJ32MC204 单片机使用入门
<p>介绍针对dsPIC33FJ32MC204或同系列单片机使用入门。</p><p>1、开发环境选择</p><p>开发环境：MPLAB IDEV8.80编译软件：MPLABC30，其中v3.25版本C语言编译器 pic30-gcc.exe，见下图。</p><p>尝试过使用最新开发环境MPLABXIDEV1.95配合数种编译器均无法对程序编译通过。</p><p>2、程序代码PROJECT工程建立</
4G移动通信技术权威指南：LTE与LTE-Advanced.4G LTE.LTE
<p>Preface</p><p>During the past years, there has been a quickly rising interest in radio access technologies for providing</p><p>mobile as well as nomadic and fixed services for voice, video, and dat
Head.First.Python 中文版
<p>Head.First.Python 中文版不只是一门python入门书，还会交给我们andriod手机，google app engine等创建应用程序。</p>
用于10kVIGBT固体开关的脉冲变压器设计
<p>由于高重复频率固体开关在加速器、雷达发射机、高功率微波和污染控制等领域存在的潜在优势，美国、英国、日本和韩国等都对固体开关技术进行了大量研究，从而成为近年脉冲功率界研究的重点1。从固体元件电路结构上，固体开关可以分成两种类型：串联结构和累加器结构。采用串联结构的固体开关生产厂家中，比较著名的有LLNL（Lawrence Livermore National Laboratory）和DTI（D
spi协议英文详解
<p>In this presentation, we will look at what the Serial Peripheral Interface, otherwise known as the SPI, is. and how it is used to communicate data to and from the PICmicro microcontroller.</p><p>SP
Head First Java.第二版.中文完整高清版
<p>《HeadFirstJava》是一本完整地面向对象(object-oriented，OO)程序设计和Java的学习指导用书，根据学习理论所设计，你可以从程序语言的基础开始，到线程、网络与分布式程序等项目。重要的是，你可以学会如何像一个面向对象开发者一样去思考，而且不只是读死书。</p><p> 在这里，你可以会玩游戏、拼图、解谜题以及以意想不到的方式与Java交互。</p><p> 在这些活
一种低成本高可靠的SFP+光收发模块电路研究与实现
<p>本文首次设计并验证了基于macom三合一芯片设计的光模块电路,该电路旨在提供一种满足SFF-8472中规定的数字诊断功能的低成本SFP+模块。电路采用激光器驱动、限幅放大器、控制器以及时钟恢复单元集成的单芯片,在保证高精度数字诊断功能基础上,实现了低成本高可靠的特点。该电路在光接收接口组件与激光器驱动和限幅放大器单元的限幅放大器部分之间接入滤波器来提高模块的灵敏度及信号质量。在控制器单元的数
EMC设计学习资料，Getting EMC Design Right First Time
<p>一份极好PCB的EMC设计指南 这是一份关闭PCB方面EMC的一些讲解，里面对应PCB设计讲得比较详细，对于从事PCB设计相关的人，可以学习一下。</p>
Digital.Image.Processing.
This edition of Digital Image Processing is a major revision of the book. As in<br />
the 1977 and 1987 editions by Gonzalez and Wintz, and the 1992, 2002, and 2008<br />
editions by Gonzalez and Wood
音频放大器设计
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This design uses Common-Emitter Amplifier (Class A) with 2N3904 Bipolar Junction Transistor.<span style="display:none;" id="__kindeditor_bookmark_start_6__"></span>
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VIP专区-3000套PLC实例程序
<font color="red">资源包含以下内容：</font><br/>1.2 COMP CHILLER.rar<br/>2.20-COMM-E Adapter Diagnostics.zip<br/>3.3 Phase Motor Startup Logic.zip<br/>4.500编程实例.rar<br/>5.550 OPTICOLOUR MOINITORING TM EDIT.rar
Embedded_Deep_Learning_－_Algorithms
Although state of the art in many typical machine learning tasks, deep learning<br />
algorithmsareverycostly interms ofenergyconsumption,duetotheirlargeamount<br />
of required computations and huge
Advances in Human Factors and System Interactions
Human Factors and Systems Interaction aims to address the main issues of concern<br />
within systems interface with a particular emphasis on the system lifecycle<br />
development and implementation
Introduction_to_Dynamic_Systems
This book is an outgrowth of a course developed at Stanford University over<br />
the past five years. It is suitable as a self-contained textbook for second-level<
Pro Arduino
Since its release, Arduino has become more than just a development platform; it has become a culture built around<br />
the idea of open source and open hardware, and one that is reimagining computer
Beginning+C+for+Arduino
I can remember buying my first electronic calculator. I was teaching a graduate level statistics course and I<br />
had to have a calculator with a square root function. Back in the late 1960s, that w
A_Software-Defined_GPS_and_Galileo_Receiver
Software-defined radios (SDRs) have been around for more than a decade. The<br />
first complete Global Positioning System (GPS) implementation was described<br />
by Dennis Akos in 1997. Since then s
The Internet of Things From RFI
With more than two billion terminals in commercial operation world-wide, wire-<br />
less and mobile technologies have enabled a first wave of pervasive communication<br />
systems and applications. S
RFID+Systems
RFID networks are currently recognized as one a research area of priority. Research<br />
activities related to RFID technology have been booming recently. A number of ongoing<br />
projects are being
RFID+and+RFID-Enabled+Sensors
adio Frequency Identification (RFID) is a rapidly developing automatic wireless data-collection<br />
technology with a long history.The first multi-bit functional passive RFID systems,with a range of