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The MC68HC05K0 is a low cost, low pin countsingle chip microcomputer with 504 bytes of userROM and 32 bytes of RAM. The MC68HC05K0 isa member of the 68HC05K series of devices whichare available in 16-pin DIL or SOIC packages.It uses the same CPU as the other devices in the68HC05 family and has the same instructions andregisters. Additionally, the device has a 15-stagemulti-function timer and 10 general purposebi-directional I/0 lines. A mask option is availablefor software programmable pull-downs on all ofthe I/O pins and four of the pins are capable ofgenerating interrupts.The device is ideally suited for remote-controlkeyboard applications because the pull-downs andthe interrupt drivers on the port pins allowkeyboards to be built without any externalcomponents except the keys themselves. There isno need for external pull-up or pull-down resistors,or diodes for wired-OR interrupts, as these featuresare already designed into the device.
標(biāo)簽：
Infra-red
Remote
Cont
05K
上傳時間：
2014-01-24
上傳用戶：zl5712176
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基于單片機(jī)的汽車多功能報警系統(tǒng)設(shè)計(jì)The Design of Automobile Multi-function AlarmingBased on Single Chip Computer劉法治趙明富寧睡達(dá)(河 南 科 技 學(xué) 院 ，新 鄉(xiāng) 453 00 3)摘要介紹了一種基于單片機(jī)控制的汽車多功能報警系統(tǒng)，它能對汽車的潤滑系統(tǒng)油壓、制動系統(tǒng)氣壓、冷卻系統(tǒng)溫度、輪胎欠壓及防盜進(jìn)行自動檢測，并在發(fā)現(xiàn)異常情況時，發(fā)出聲光報警。闡述了該報警系統(tǒng)的硬件組成及軟件設(shè)計(jì)方法。關(guān)鍵詞單片機(jī)傳感器數(shù)模轉(zhuǎn)換報警Abstract Am ulti-fimctiona utomobilea larnungs ystemb asedo ns inglec hipc omputerco ntorlis in torducedin th isp aper.Th eo ilpr essuero flu bricatesystem, air pressure of braking system, temperature of cooling system, under pressure of tyre and guard against theft， detected automaticaly場thesystem. Audio and visual alarms wil be provided under abnormal conditions廠The hardware composition and software design of the system， described.Keywords Singlec hipc omputer Sensor Digital-t-oanaloguec onversion Alarmin
汽車多功能報苦器硬件系統(tǒng)設(shè)計(jì)根據(jù) 系 統(tǒng) 實(shí)際需要和產(chǎn)品性價比，選用ATMEL公司新生產(chǎn)的采用CMOs工藝的低功耗、高性能8位單片機(jī)AT89S52作為系統(tǒng)的控制器。AT89S52的片內(nèi)有8k Bytes LSP Flash閃爍存儲器，可進(jìn)行100(〕次寫、擦除操作;256Bytes內(nèi)部數(shù)據(jù)存儲器(RAM);3 2 根可編程輸N輸出線;2個可編程全雙工串行通道;看門狗(WTD)電路等。系統(tǒng)由傳感器、單片機(jī)、模數(shù)轉(zhuǎn)換器、無線信號發(fā)射電路、指示燈驅(qū)動電路、聲光報警驅(qū)動電KD一9563，發(fā)出三聲二閃光。并觸發(fā)一個高電平，驅(qū)動無線信號發(fā)射電路。
標(biāo)簽：
單片機(jī)
汽車
多功能
報警
上傳時間：
2013-11-09
上傳用戶：gxmm
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中文版詳情瀏覽：http://www.elecfans.com/emb/fpga/20130715324029.html
Xilinx UltraScale:The Next-Generation Architecture for Your Next-Generation Architecture
The Xilinx® UltraScale™ architecture delivers unprecedented levels of integration and capability with ASIC-class system- level performance for the most demanding applications.
The UltraScale architecture is the industr y's f irst application of leading-edge ASIC architectural enhancements in an All Programmable architecture that scales from 20 nm planar through 16 nm FinFET technologies and beyond, in addition to scaling from monolithic through 3D ICs. Through analytical co-optimization with the X ilinx V ivado® Design Suite, the UltraScale architecture provides massive routing capacity while intelligently resolving typical bottlenecks in ways never before possible. This design synergy achieves greater than 90% utilization with no performance degradation.
Some of the UltraScale architecture breakthroughs include:
• Strategic placement (virtually anywhere on the die) of ASIC-like system clocks, reducing clock skew by up to 50%
• Latency-producing pipelining is virtually unnecessary in systems with massively parallel bus architecture, increasing system speed and capability
• Potential timing-closure problems and interconnect bottlenecks are eliminated, even in systems requiring 90% or more resource utilization
• 3D IC integration makes it possible to build larger devices one process generation ahead of the current industr y standard
• Greatly increased system performance, including multi-gigabit serial transceivers, I/O, and memor y bandwidth is available within even smaller system power budgets
• Greatly enhanced DSP and packet handling
The Xilinx UltraScale architecture opens up whole new dimensions for designers of ultra-high-capacity solutions.
標(biāo)簽：
UltraScale
Xilinx
架構(gòu)
上傳時間：
2013-11-13
上傳用戶：瓦力瓦力hong
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很多不同的廠家生產(chǎn)各種型號的計(jì)算機(jī)，它們運(yùn)行完全不同的操作系統(tǒng)，但TCP.IP協(xié)議族允許它們互相進(jìn)行通信。這一點(diǎn)很讓人感到吃驚，因?yàn)樗淖饔靡堰h(yuǎn)遠(yuǎn)超出了起初的設(shè)想。T C P / I P起源于6 0年代末美國政府資助的一個分組交換網(wǎng)絡(luò)研究項(xiàng)目，到9 0年代已發(fā)展成為計(jì)算機(jī)之間最常應(yīng)用的組網(wǎng)形式。它是一個真正的開放系統(tǒng)，因?yàn)閰f(xié)議族的定義及其多種實(shí)現(xiàn)可以不用花錢或花很少的錢就可以公開地得到。它成為被稱作“全球互聯(lián)網(wǎng)”或“因特網(wǎng)(Internet)”的基礎(chǔ)，該廣域網(wǎng)（WA N）已包含超過1 0 0萬臺遍布世界各地的計(jì)算機(jī)。本章主要對T C P / I P協(xié)議族進(jìn)行概述，其目的是為本書其余章節(jié)提供充分的背景知識。
TCP.IP協(xié)議 縮略語
ACK (ACKnowledgment) TCP首部中的確認(rèn)標(biāo)志
API (Application Programming Interface) 應(yīng)用編程接口
ARP (Address Resolution Protocol) 地址解析協(xié)議
ARPANET(Defense Advanced Research Project Agency NETwork) (美國)國防部遠(yuǎn)景研究規(guī)劃局
AS (Autonomous System) 自治系統(tǒng)
ASCII (American Standard Code for Information Interchange) 美國信息交換標(biāo)準(zhǔn)碼
ASN.1 (Abstract Syntax Notation One) 抽象語法記法1
BER (Basic Encoding Rule) 基本編碼規(guī)則
BGP (Border Gateway Protocol) 邊界網(wǎng)關(guān)協(xié)議
BIND (Berkeley Internet Name Domain) 伯克利I n t e r n e t域名
BOOTP (BOOTstrap Protocol) 引導(dǎo)程序協(xié)議
BPF (BSD Packet Filter) BSD 分組過濾器
CIDR (Classless InterDomain Routing) 無類型域間選路
CIX (Commercial Internet Exchange) 商業(yè)互聯(lián)網(wǎng)交換
CLNP (ConnectionLess Network Protocol) 無連接網(wǎng)絡(luò)協(xié)議
CRC (Cyclic Redundancy Check) 循環(huán)冗余檢驗(yàn)
CSLIP (Compressed SLIP) 壓縮的S L I P
CSMA (Carrier Sense Multiple Access) 載波偵聽多路存取
DCE (Data Circuit-terminating Equipment) 數(shù)據(jù)電路端接設(shè)備
DDN (Defense Data Network) 國防數(shù)據(jù)網(wǎng)
DF (Don’t Fragment) IP首部中的不分片標(biāo)志
DHCP (Dynamic Host Configuration Protocol) 動態(tài)主機(jī)配置協(xié)議
DLPI (Data Link Provider Interface) 數(shù)據(jù)鏈路提供者接口
DNS (Domain Name System) 域名系統(tǒng)
DSAP (Destination Service Access Point) 目的服務(wù)訪問點(diǎn)
DSLAM (DSL Access Multiplexer) 數(shù)字用戶線接入復(fù)用器
DSSS (Direct Sequence Spread Spectrum) 直接序列擴(kuò)頻
DTS (Distributed Time Service) 分布式時間服務(wù)
DVMRP (Distance Vector Multicast Routing Protocol) 距離向量多播選路協(xié)議
EBONE (European IP BackbONE) 歐洲I P主干網(wǎng)
EOL (End of Option List) 選項(xiàng)清單結(jié)束
EGP (External Gateway Protocol) 外部網(wǎng)關(guān)協(xié)議
EIA (Electronic Industries Association) 美國電子工業(yè)協(xié)會
FCS (Frame Check Sequence) 幀檢驗(yàn)序列
FDDI (Fiber Distributed Data Interface) 光纖分布式數(shù)據(jù)接口
FIFO (First In, First Out) 先進(jìn)先出
FIN (FINish) TCP首部中的結(jié)束標(biāo)志
FQDN (Full Qualified Domain Name) 完全合格的域名
FTP (File Transfer Protocol) 文件傳送協(xié)議
HDLC (High-level Data Link Control) 高級數(shù)據(jù)鏈路控制
HELLO 選路協(xié)議
IAB (Internet Architecture Board) Internet體系結(jié)構(gòu)委員會
IANA (Internet Assigned Numbers Authority) Internet號分配機(jī)構(gòu)
ICMP (Internet Control Message Protocol) Internet控制報文協(xié)議
IDRP (InterDomain Routing Protocol) 域間選路協(xié)議
IEEE (Institute of Electrical and Electronics Engineering) （美國）電氣與電子工程師協(xié)會
IEN (Internet Experiment Notes) 互聯(lián)網(wǎng)試驗(yàn)注釋
IESG (Internet Engineering Steering Group) Internet工程指導(dǎo)小組
IETF (Internet Engineering Task Force) Internet工程專門小組
IGMP (Internet Group Management Protocol) Internet組管理協(xié)議
IGP (Interior Gateway Protocol) 內(nèi)部網(wǎng)關(guān)協(xié)議
IMAP (Internet Message Access Protocol) Internet報文存取協(xié)議
IP (Internet Protocol) 網(wǎng)際協(xié)議
I RTF (Internet Research Task Force) Internet研究專門小組
IS-IS (Intermediate System to Intermediate System Protocol) 中間系統(tǒng)到中間系統(tǒng)協(xié)議
ISN (Initial Sequence Number) 初始序號
ISO (International Organization for Standardization) 國際標(biāo)準(zhǔn)化組織
ISOC (Internet SOCiety) Internet協(xié)會
LAN (Local Area Network) 局域網(wǎng)
LBX (Low Bandwidth X) 低帶寬X
LCP (Link Control Protocol) 鏈路控制協(xié)議
LFN (Long Fat Net) 長肥網(wǎng)絡(luò)
LIFO (Last In, First Out) 后進(jìn)先出
LLC (Logical Link Control) 邏輯鏈路控制
LSRR (Loose Source and Record Route) 寬松的源站及記錄路由
MBONE (Multicast Backbone On the InterNEt) Internet上的多播主干網(wǎng)
MIB (Management Information Base) 管理信息庫
MILNET (MILitary NETwork) 軍用網(wǎng)
MIME (Multipurpose Internet Mail Extensions) 通用I n t e r n e t郵件擴(kuò)充
MSL (Maximum Segment Lifetime) 報文段最大生存時間
MSS (Maximum Segment Size) 最大報文段長度
M TA (Message Transfer Agent) 報文傳送代理
MTU (Maximum Transmission Unit) 最大傳輸單元
NCP (Network Control Protocol) 網(wǎng)絡(luò)控制協(xié)議
NFS (Network File System) 網(wǎng)絡(luò)文件系統(tǒng)
NIC (Network Information Center) 網(wǎng)絡(luò)信息中心
NIT (Network Interface Tap) 網(wǎng)絡(luò)接口栓（S u n公司的一個程序）
NNTP (Network News Transfer Protocol) 網(wǎng)絡(luò)新聞傳送協(xié)議
NOAO (National Optical Astronomy Observatories) 國家光學(xué)天文臺
NOP (No Operation) 無操作
NSFNET (National Science Foundation NETwork) 國家科學(xué)基金網(wǎng)絡(luò)
NSI (NASA Science Internet) （美國）國家宇航局I n t e r n e t
NTP (Network Time Protocol) 網(wǎng)絡(luò)時間協(xié)議
NVT (Network Virtual Terminal) 網(wǎng)絡(luò)虛擬終端
OSF (Open Software Foudation) 開放軟件基金
OSI (Open Systems Interconnection) 開放系統(tǒng)互連
OSPF (Open Shortest Path First) 開放最短通路優(yōu)先
PAWS (Protection Against Wrapped Sequence number) 防止回繞的序號
PDU (Protocol Data Unit) 協(xié)議數(shù)據(jù)單元
POSIX (Portable Operating System Interface) 可移植操作系統(tǒng)接口
PPP (Point-to-Point Protocol) 點(diǎn)對點(diǎn)協(xié)議
PSH (PuSH) TCP首部中的急迫標(biāo)志
RARP (Reverse Address Resolution Protocol) 逆地址解析協(xié)議
RFC (Request For Comments) Internet的文檔，其中的少部分成為標(biāo)準(zhǔn)文檔
RIP (Routing Information Protocol) 路由信息協(xié)議
RPC (Remote Procedure Call) 遠(yuǎn)程過程調(diào)用
RR (Resource Record) 資源記錄
RST (ReSeT) TCP首部中的復(fù)位標(biāo)志
RTO (Retransmission Time Out) 重傳超時
RTT (Round-Trip Time) 往返時間
SACK (Selective ACKnowledgment) 有選擇的確認(rèn)
SLIP (Serial Line Internet Protocol) 串行線路I n t e r n e t協(xié)議
SMI (Structure of Management Information) 管理信息結(jié)構(gòu)
SMTP (Simple Mail Transfer Protocol) 簡單郵件傳送協(xié)議
SNMP (Simple Network Management Protocol) 簡單網(wǎng)絡(luò)管理協(xié)議
SSAP (Source Service Access Point) 源服務(wù)訪問點(diǎn)
SSRR (Strict Source and Record Route) 嚴(yán)格的源站及記錄路由
SWS (Silly Window Syndrome) 糊涂窗口綜合癥
SYN (SYNchronous) TCP首部中的同步序號標(biāo)志
TCP (Transmission Control Protocol) 傳輸控制協(xié)議
TFTP (Trivial File Transfer Protocol) 簡單文件傳送協(xié)議
TLI (Transport Layer Interface) 運(yùn)輸層接口
TTL (Ti m e - To-Live) 生存時間或壽命
TUBA (TCP and UDP with Bigger Addresses) 具有更長地址的T C P和U D P
Telnet 遠(yuǎn)程終端協(xié)議
UA (User Agent) 用戶代理
UDP (User Datagram Protocol) 用戶數(shù)據(jù)報協(xié)議
URG (URGent) TCP首部中的緊急指針標(biāo)志
UTC (Coordinated Universal Time) 協(xié)調(diào)的統(tǒng)一時間
UUCP (Unix-to-Unix CoPy) Unix到U n i x的復(fù)制
WAN (Wide Area Network) 廣域網(wǎng)
WWW (World Wide Web) 萬維網(wǎng)
XDR (eXternal Data Representation) 外部數(shù)據(jù)表示
XID (transaction ID) 事務(wù)標(biāo)識符
XTI (X/Open Transport Layer Interface) X/ O p e n運(yùn)輸層接口
標(biāo)簽：
tcp
協(xié)議
上傳時間：
2013-11-13
上傳用戶：tdyoung
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為提升虛擬儀器傳輸速率與實(shí)時性能，擴(kuò)展監(jiān)測范圍，在VC的軟件平臺上設(shè)計(jì)了一種全功能虛擬示波器。與傳統(tǒng)虛擬示波器相比，該系統(tǒng)采用嵌入式系統(tǒng)完成信號采集，采用工業(yè)以太網(wǎng)為傳輸介質(zhì)，通過線性插值算法和多線程編程思想，實(shí)現(xiàn)波形顯示、參數(shù)計(jì)算、頻譜分析以及波形存儲及回放功能。實(shí)驗(yàn)結(jié)果表明，該虛擬示波器可以實(shí)現(xiàn)20 kHz采樣頻率下的波形精確顯示，達(dá)到預(yù)期的各項(xiàng)指標(biāo)。
Abstract:
o enhance the transfer rate and real-time of virtual instrument performance， expand scope of monitoring， this paper uses the VCs software platform to design a fully functional virtual oscilloscope. Compared with traditional virtual oscilloscope， this system adopts the embedded system to complete the data acquisition， industrial Ethernet as the transmission medium used by the linear interpolation algorithm and multi-threaded programming ideas， namely to achieve waveform display， parameter calculation， spectrum analysis and waveform storage and playback. Experimental results show that the virtual oscilloscope can accurately display the waveform with 20kHz sampling frequency， and achieve the desired targets.
標(biāo)簽：
以太網(wǎng)
虛擬
波器設(shè)計(jì)
上傳時間：
2013-11-25
上傳用戶：wbwyl
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通過對EFI技術(shù)研究,結(jié)合目前使用的雙核處理器設(shè)計(jì)了一種安全性更高的加密文件系統(tǒng)。該系統(tǒng)將加解密操作轉(zhuǎn)移到同操作系統(tǒng)隔離的EFI系統(tǒng)中,由設(shè)計(jì)的EFI Agent完成,滿足系統(tǒng)安全性需要。
標(biāo)簽：
EFI
雙核處理器
加密
文件系統(tǒng)
上傳時間：
2014-12-30
上傳用戶：moshushi0009
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同步技術(shù)是跳頻通信系統(tǒng)的關(guān)鍵技術(shù)之一，尤其是在快速跳頻通信系統(tǒng)中，常規(guī)跳頻通信通過同步字頭攜帶相關(guān)碼的方法來實(shí)現(xiàn)同步，但對于快跳頻來說，由于是一跳或者多跳傳輸一個調(diào)制符號，難以攜帶相關(guān)碼。對此引入雙跳頻圖案方法，提出了一種適用于快速跳頻通信系統(tǒng)的同步方案。采用短碼攜帶同步信息，克服了快速跳頻難以攜帶相關(guān)碼的困難。分析了同步性能，仿真結(jié)果表明該方案同步時間短、虛警概率低、捕獲概率高，同步性能可靠。
Abstract:
Synchronization is one of the key techniques to frequency-hopping communication system， especially in the fast frequency hopping communication system. In conventional frequency hopping communication systems， synchronization can be achieved by synchronization-head which can be used to carry the synchronization information， but for the fast frequency hopping， Because modulation symbol is transmitted by per hop or multi-hop， it is difficult to carry the correlation code. For the limitation of fast frequency hopping in carrying correlation code， a fast frequency-hopping synchronization scheme with two hopping patterns is proposed. The synchronization information is carried by short code， which overcomes the difficulty of correlation code transmission in fast frequency-hopping. The performance of the scheme is analyzed， and simulation results show that the scheme has the advantages of shorter synchronization time， lower probability of false alarm， higher probability of capture and more reliable of synchronization.
標(biāo)簽：
快速跳頻
同步技術(shù)
通信系統(tǒng)
上傳時間：
2013-11-23
上傳用戶：mpquest
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The NXP LPC315x combine an 180 MHz ARM926EJ-S CPU core, High-speed USB 2.0OTG, 192 KB SRAM, NAND flash controller, flexible external bus interface, an integratedaudio codec, Li-ion charger, Real-Time Clock (RTC), and a myriad of serial and parallelinterfaces in a single chip targeted at consumer, industrial, medical, and communicationmarkets. To optimize system power consumption, the LPC315x have multiple powerdomains and a very flexible Clock Generation Unit (CGU) that provides dynamic clockgating and scaling.The LPC315x is implemented as multi-chip module with two side-by-side dies, one fordigital fuctions and one for analog functions, which include a Power Supply Unit (PSU),audio codec, RTC, and Li-ion battery charger.
標(biāo)簽：
315x
LPC
315
ARM
上傳時間：
2014-01-17
上傳用戶：Altman
-
Today in many applications such as network switches, routers, multi-computers,and processor-memory interfaces, the ability to integrate hundreds of multi-gigabit I/Os is desired to make better use of the rapidly advancing IC technology.
標(biāo)簽：
時鐘恢復(fù)
英文
上傳時間：
2013-10-30
上傳用戶：ysjing
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ARM通訊
H-JTAG 是一款簡單易用的的調(diào)試代理軟件，功能和流行的MULTI-ICE 類似。H-JTAG 包括兩個工具軟件：H-JTAG SERVER 和H-FLASHER。其中，H-JTAG SERVER 實(shí)現(xiàn)調(diào)試代理的功能，而H-FLASHER則實(shí)現(xiàn)了FLASH 燒寫的功能。H-JTAG 的基本結(jié)構(gòu)如下圖1-1所示。 H-JTAG支持所有基于ARM7 和ARM9的芯片的調(diào)試，并且支持大多數(shù)主流的ARM調(diào)試軟件，如ADS、RVDS、IAR 和KEIL。通過靈活的接口配置，H-JTAG 可以支持WIGGLER，SDT-JTAG 和用戶自定義的各種JTAG 調(diào)試小板。同時，附帶的H-FLASHER 燒寫軟件還支持常用片內(nèi)片外FLASH 的燒寫。使用H-JTAG，用戶能夠方便的搭建一個簡單易用的ARM 調(diào)試開發(fā)平臺。H-JTAG 的功能和特定總結(jié)如下： 1. 支持 RDI 1.5.0 以及 1.5.1； 2. 支持所有ARM7 以及 ARM9 芯片； 3. 支持 THUMB 以及ARM 指令； 4. 支持 LITTLE-ENDIAN 以及 BIG-ENDIAN； 5. 支持 SEMIHOSTING； 6. 支持 WIGGLER， SDT-JTAG和用戶自定義JTAG調(diào)試板； 7. 支持 WINDOWS 9.X/NT/2000/XP； 8．支持常用FLASH 芯片的編程燒寫； 9. 支持LPC2000 和AT91SAM 片內(nèi)FLASH 的自動下載；
標(biāo)簽：
H-JTAG
調(diào)試軟件
上傳時間：
2014-12-01
上傳用戶：Miyuki
