以S3C825A為例介紹三星公司SAM8系列單片機(jī)的內(nèi)部結(jié)構(gòu)及其軟件開發(fā)環(huán)境，詳細(xì)描述采用混合編程法來對(duì)SAM8系列單片機(jī)進(jìn)行軟件設(shè)計(jì)的一般方法，最后給出用混合編程法對(duì)S3C825A進(jìn)行軟件設(shè)計(jì)的具體應(yīng)用實(shí)例。 Abstract: With S3C825A,this paper firstly INTRODUCES the SAM8 series single-chip microcontrollers and their software development environment, then INTRODUCES mixed programming technology for SAM8 series single-chip microcontrollers. In the end, the application program is also given.
標(biāo)簽： S3C825A SAM8 單片機(jī) 軟件設(shè)計(jì)
上傳時(shí)間： 2013-12-09
上傳用戶：ZZJ886
介紹了用單片機(jī)C 語言實(shí)現(xiàn)無功補(bǔ)償中電容組循環(huán)投切的基本原理和算法，并舉例說明。關(guān)鍵詞：循環(huán)投切;C51;無功補(bǔ)償中圖分類號(hào)： TM76 文獻(xiàn)標(biāo)識(shí)碼： BAbstract: This paper INTRODUCES the aplication of C51 in the controlling of capacitorsuits cycle powered to be on and off in reactive compensation.it illustrate thefondamental principle and algorithm with example.Key words: cycle powered to be on and off; C51; reactive compensation 為提高功率因數(shù)，往往采用補(bǔ)償電容的方法來實(shí)現(xiàn)。而電容器的容量是由實(shí)時(shí)功率因數(shù)與標(biāo)準(zhǔn)值進(jìn)行比較來決定的，實(shí)時(shí)功率因數(shù)小于標(biāo)準(zhǔn)值時(shí)，需投入電容組，實(shí)時(shí)功率因數(shù)大于標(biāo)準(zhǔn)值時(shí)，則需切除電容組。投切方式的不合理，會(huì)對(duì)電容器造成損壞，現(xiàn)有的控制器多采用“順序投切”方式，在這種投切方式下排序在前的電容器組，先投后切；而后面的卻后投先切。這不僅使處于前面的電容組經(jīng)常處于運(yùn)行狀態(tài)，積累熱量不易散失，影響其使用壽命，而且使后面的投切開關(guān)經(jīng)常動(dòng)作，同樣減少壽命。合理的投切方式應(yīng)為“循環(huán)投切”。這種投切方式使先投入的運(yùn)行的電容組先退出，后投的后切除，從而使各組電容及投切開關(guān)使用機(jī)率均等，降低了電容組的平均運(yùn)行溫度，減少了投切開關(guān)的動(dòng)作次數(shù)，延長了其使用壽命。
標(biāo)簽： C51 無功補(bǔ)償 循環(huán) 電容
上傳時(shí)間： 2014-12-27
上傳用戶：hopy
PROTEUS VSM在單片機(jī)系統(tǒng)仿真中的應(yīng)用:：介紹了單片機(jī)系統(tǒng)仿真工具PROTEUS VSM 及其在單片機(jī)系統(tǒng)仿真中的應(yīng)用，給出了具體的應(yīng)用實(shí)例，詳細(xì)地介紹了PROTEUS VSM 與Keil uVision3的接口方法。關(guān)鍵詞：單片機(jī)；Keil uVision3；仿真；外圍器件；PROTEUS VSM； Abstract：This paper INTRODUCES the simulation tool for M CU system —PROTEUS VSM ， and presents the application ofPROTEUS VSM in MCU system simulation through an applicable example．The way of interfacing PROTEUS VSM to Keil uVision3is also presented in details．Keywords：MCU ；Keil uVision3；simulation；peripheral devices；PROTEUS VSM ；
標(biāo)簽： PROTEUS VSM 單片機(jī) 中的應(yīng)用
上傳時(shí)間： 2013-11-16
上傳用戶：chenxichenyue
本文介紹了一種基于單片機(jī)的健身車轉(zhuǎn)速測量系統(tǒng)。該系統(tǒng)具有電路簡單、使用方便等特點(diǎn)。文中詳細(xì)介紹了該系統(tǒng)的工作原理,并且給出了它的硬件原理圖和軟件設(shè)計(jì)程序框圖。關(guān)鍵詞:轉(zhuǎn)速 單片機(jī) 測量ABSTRACT :This paper INTRODUCES a measuring system of the rotational velocity of exercise bike based on single - chip microcomputer . It has such advantages : simple circuit ,convenient use and so on. The work principle is presented in detail in this paper and the block diagram of hardware and program flow chart are giv2 en as well .KEYWORDS :Rotational velocity Single - chip microcomputer Measuring
標(biāo)簽： 單片機(jī) 中的應(yīng)用 轉(zhuǎn)速測量
上傳時(shí)間： 2013-11-02
上傳用戶：源弋弋
CAN與RS232轉(zhuǎn)換節(jié)點(diǎn)的設(shè)計(jì)與實(shí)現(xiàn) 介紹將CAN總線接口與RS232總線接口相互轉(zhuǎn)換的設(shè)計(jì)方法和2種總線電平轉(zhuǎn)換關(guān)系，實(shí)現(xiàn)CAN總線與各模塊的接口設(shè)計(jì)，制定了相應(yīng)的軟硬件設(shè)計(jì)方案，并給出軟件設(shè)計(jì)流程圖以及部分硬件設(shè)計(jì)原理圖。為CAN總線與RS232總線互聯(lián)提供了一種方法，對(duì)CAN總線與RS232總線接口設(shè)備的互聯(lián)和廣泛應(yīng)用的實(shí)現(xiàn)具有重要意義。關(guān)鍵詞：CAN總線；RS-232總線；串行通信Design and Realization of CAN and RS232 Transformation NodeZHOU Wei, CHENG Xiao-hong(Information Institute, Wuhan University of Technology, Wuhan 430070)【Abstract】This paper INTRODUCES one design method of the CAN bus interface and the RS232 bus interface interconversion, emphasizes two kindof bus level transformation relations, realizes the CAN bus and various modules connection design, formulates the design proposal of correspondingsoftware and hardware, and gives the flow chart of software design as well as the partial schematic diagram of hardware design. It providesonemethod for the CAN bus and the RS232 bus interconnection, has the vital significance to widespread application realization of the CAN busand theRS232 bus interface equipment interconnection.【Key words】CAN bus; RS-232 bus; serial communication
標(biāo)簽： CAN 232 RS 轉(zhuǎn)換
上傳時(shí)間： 2013-11-04
上傳用戶：leesuper
本文主要通過介紹PLC通訊的意義和三菱FX系列PLC的四種通訊方式，并重點(diǎn)介紹FX系列PLC與計(jì)算機(jī)無協(xié)議通訊，主要從無協(xié)議通訊的硬件、配線、數(shù)據(jù)寄存器設(shè)置、PLC與計(jì)算機(jī)無協(xié)議通訊的指令用法、PLC程序編寫和計(jì)算機(jī)VB程序的編寫來說明無協(xié)議通訊的過程和一般方法。 My dissertation INTRODUCES the significance of PLC communications and the four means of communication of Mitsubishi FX’s PLC, And highlights the no protocol communications of FX series PLC and computer, no protocol communications hardware, wiring, Register data set, and the usage of command about no protocol communications, How to write PLC program and computer VB program to illustrate the process of no protocol communications and general method.
標(biāo)簽： PLC 三菱FX系列 計(jì)算機(jī) 協(xié)議
上傳時(shí)間： 2014-11-29
上傳用戶：Jerry_Chow
闡述了軌道交通列車定位技術(shù)。介紹了在軌道交通系統(tǒng)中列車定位技術(shù)的功能，國內(nèi)外軌道交通中主要采用的列車定位方法，重點(diǎn)論述了幾種主要定位技術(shù)，并從定位精度、閉塞制式、維護(hù)投資成本、抗干擾等方面進(jìn)行分析比較。提出目前軌道交通定位技術(shù)應(yīng)綜合運(yùn)用，取長補(bǔ)短，多種方法相互融合，才能滿足軌道交通中對(duì)安全可靠性的要求。 Abstract: Rail train positioning technology is described. The paper INTRODUCES the funetions of the train positioning technology in the rail transit system， the main methods of train positioning do mestic and international rail， and focuses on several key methods， analyzes and compares from the positioning accuracy， block system, maintenance and investment cost， interference and so on， suggested that the current rail positioning technology should be integrated use of positioning method of meriging， learn from each other， to meet the reliability requirements of rail safety.
上傳時(shí)間： 2013-11-25
上傳用戶：franktu
Nios II軟件構(gòu)建工具入門 The Nios® II Software Build Tools (SBT) allows you to construct a wide variety of complex embedded software systems using a command-line interface. From this interface, you can execute Software Built Tools command utilities, and use scripts other tools) to combine the command utilities in many useful ways. This chapter INTRODUCES you to project creation with the SBT at the command line This chapter includes the following sections: ■ “Advantages of Command-Line Software Development” ■ “Outline of the Nios II SBT Command-Line Interface” ■ “Getting Started in the SBT Command Line” ■ “Software Build Tools Scripting Basics” on page 3–8
上傳時(shí)間： 2013-11-15
上傳用戶：nanxia
IBM MQ Introduction and overview This chapter describes the scope of this book and INTRODUCES WebSphere Business Integration Message Broker, WebSphere Business Integration Event Broker, and their main components.
標(biāo)簽： Introduction and describes overview
上傳時(shí)間： 2015-05-13
上傳用戶：xuanjie
Using a holistic approach to teaching developers the ins-and-outs of GNU/Linux programming using APIs, tools, communication, and scripting, this book INTRODUCES programmers to the environment from the lowest layers to the user layers.
標(biāo)簽： ins-and-outs programming developers holistic
上傳時(shí)間： 2013-12-23
上傳用戶：kristycreasy
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