本文設(shè)計(jì)了MCS-51單片機(jī)與FPGA的總線接口邏輯電路,實(shí)現(xiàn)了單片機(jī)與FPGA數(shù)據(jù)與控制信息的可靠通信,使FP—GA與單片機(jī)優(yōu)勢(shì)互補(bǔ),組成靈活的、軟硬件都可現(xiàn)場(chǎng)編程的控制系統(tǒng)。
上傳時(shí)間: 2013-07-27
上傳用戶:sxdtlqqjl
多功能EDA仿真/教學(xué)實(shí)驗(yàn)系統(tǒng)產(chǎn)品簡(jiǎn)介北京普立華電子科技有限公司研發(fā)部提供核心模塊-單片機(jī)系統(tǒng)核心模塊-CPLD核心模塊-FP
標(biāo)簽: EDA 多功能 仿真 教學(xué)實(shí)驗(yàn)系統(tǒng)
上傳時(shí)間: 2013-05-26
上傳用戶:rocwangdp
光纖布拉格光柵(Fiber Bragg Grating)傳感器是近幾年光纖傳感技術(shù)領(lǐng)域的研究熱點(diǎn),光纖光柵傳感器可以工作在強(qiáng)電磁場(chǎng)、高溫有腐蝕性的以及有爆炸危險(xiǎn)性的惡劣環(huán)境中,且易于將多個(gè)光纖光柵串聯(lián)在一起構(gòu)成光纖光柵陣列,實(shí)現(xiàn)分布式傳感,這是其他傳感元件所不及的。 本文設(shè)計(jì)了光纖光柵傳感網(wǎng)絡(luò)可調(diào)諧法布里-珀羅(Fabry-Perot)腔解調(diào)測(cè)試系統(tǒng)。系統(tǒng)主要分光路和電路兩部分,在光路部分,研究了光纖光柵解調(diào)技術(shù),分析和比較了幾種常見的波長(zhǎng)解調(diào)方法,由于F-P腔調(diào)諧范圍寬,可以實(shí)現(xiàn)多點(diǎn)測(cè)量,因此決定采用可調(diào)諧F.P腔法進(jìn)行信號(hào)解調(diào)。對(duì)可調(diào)諧 F-P腔解調(diào)法做了理論分析和研究,并通過Matlab仿真對(duì)影響F-P濾波效果的腔長(zhǎng)和反射率兩個(gè)參數(shù)進(jìn)行了優(yōu)化設(shè)計(jì)。在電路部分,首先設(shè)計(jì)整形電路將光電探測(cè)器的輸出信號(hào)整形成矩形脈沖信號(hào),設(shè)計(jì)了計(jì)算中心波長(zhǎng)的方法,最后搭建了硬件電路來驗(yàn)證中心波長(zhǎng)的計(jì)算方法。硬件電路以 Philips公司的 LPC2214 為核心處理器。該硬件電路包括電源電路,復(fù)位電路,串口電路,JTAG 調(diào)試接口,數(shù)碼管顯示等。軟件方面,設(shè)計(jì)了相關(guān)的軟件程序和模擬信號(hào)源,最后利用模擬信號(hào)源作為該解調(diào)測(cè)試系統(tǒng)的信號(hào)進(jìn)行實(shí)驗(yàn)驗(yàn)證,得出實(shí)驗(yàn)數(shù)據(jù),經(jīng)過分析驗(yàn)證了該解調(diào)測(cè)試系統(tǒng)的可行性。
標(biāo)簽: ARM 光纖光柵 傳感網(wǎng)絡(luò) 解調(diào)器
上傳時(shí)間: 2013-05-26
上傳用戶:hooooor
在無線通信系統(tǒng)全面進(jìn)入3G并開始邁向 4G的過程中,使用數(shù)字預(yù)失真技術(shù)(Digital Pre-distortion,以下簡(jiǎn)稱DPD)對(duì)發(fā)射機(jī)的功放進(jìn)行線性化是一門關(guān)鍵技術(shù)。功率放大器是通信系統(tǒng)中影響系統(tǒng)性能和覆蓋范圍的關(guān)鍵部件,非線性是功放的固有特性。非線性會(huì)引起頻譜增長(zhǎng)(spectral re-growth),從而造成鄰道干擾,使帶外雜散達(dá)不到協(xié)議標(biāo)準(zhǔn)規(guī)定的要求。非線性也會(huì)造成帶內(nèi)失真,帶來系統(tǒng)誤碼率增大的問題。
標(biāo)簽: DPD 數(shù)字預(yù)失真 算法 驗(yàn)證方案
上傳時(shí)間: 2013-10-19
上傳用戶:yy_cn
自己在學(xué)校的時(shí)候做的一些單片機(jī)仿真實(shí)例和一些資料,希望對(duì)大家有些幫助
標(biāo)簽: Proteus 單片機(jī) 仿真實(shí)例
上傳時(shí)間: 2013-11-08
上傳用戶:oojj
According to CIBC World Markets, Equity Research, theFlat Panel Display (FPD) industry has achieved sufficientcritical mass for its growth to explode. Thus, it can nowattract the right blend of capital investments and R&Dresources to drive technical innovation toward continuousimprovement in view quality, manufacturing efficiency,and system integration. These in turn are sustainingconsumer interest, penetration, revenue growth, and thepotential for increasing long-term profitability for industryparticipants. CIBC believes that three essential conditionsare now converging to drive the market forward
上傳時(shí)間: 2013-10-18
上傳用戶:日光微瀾
According to CIBC World Markets, Equity Research, theFlat Panel Display (FPD) industry has achieved sufficientcritical mass for its growth to explode. Thus, it can nowattract the right blend of capital investments and R&Dresources to drive technical innovation toward continuousimprovement in view quality, manufacturing efficiency,and system integration. These in turn are sustainingconsumer interest, penetration, revenue growth, and thepotential for increasing long-term profitability for industryparticipants. CIBC believes that three essential conditionsare now converging to drive the market forward
上傳時(shí)間: 2015-01-02
上傳用戶:小楓殘?jiān)?/p>
介紹了以PLC為控制單元,變頻器為執(zhí)行單元的控制系統(tǒng)及其在煙支輸送儲(chǔ)存系統(tǒng)中的應(yīng)用,并給出了系統(tǒng)的組成、硬件的配置及具體的實(shí)現(xiàn)方法。關(guān)鍵詞 : PLC 變頻器輸送儲(chǔ)存系統(tǒng) Ab str ac t;T hisp aperi ntroducest hec ontrols ystem whichc onsistso fP LCa ndf requencyc onvertera ndi ts application in the buffer conveyor for cigarettes. The system constitute, hardware disposal and realization method are also presented in detail.Keywords:PLC f requencyc onverter b ufferc onveyor
標(biāo)簽: PLC 變頻器 中的應(yīng)用 存儲(chǔ)系統(tǒng)
上傳時(shí)間: 2013-10-22
上傳用戶:ouyang426
#include "define.h" #include <stdio.h> #include <string.h> #include <ctype.h> #include <malloc.h> FILE *fp /*////////////////////////////////////////////////////////////////////////////// This is a pretreatment. /////////////////////////////////////////////////////////////////////////////*/ void readIntoBuffer(char buffer[256]) { char ch1 char temp int i for(i=0 i<256&&!feof(fp) i++) { ch1=fgetc(fp) if(ch1== )
標(biāo)簽: include gt lt define
上傳時(shí)間: 2015-07-16
上傳用戶:ynsnjs
FLASH文件系統(tǒng)的源碼,F(xiàn)lash memory is a nonvolatile memory, which allows the user to electrically program (write) and erase information. The exponential growth of flash memory has made this technology an indispensable part of hundreds of millions of electronic devices. Flash memory has several significant differences with volatile (RAM) memory and hard drive technologies which requires unique software drivers and file systems. This paper provides an overview of file systems for flash memory and focuses on the unique software requirements of flash memory devices.
標(biāo)簽: FLASH 文件系統(tǒng) 源碼
上傳時(shí)間: 2015-11-29
上傳用戶:問題問題
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