本文設計了MCS-51單片機與FPGA的總線接口邏輯電路,實現了單片機與FPGA數據與控制信息的可靠通信,使FP—GA與單片機優勢互補,組成靈活的、軟硬件都可現場編程的控制系統。
上傳時間: 2013-07-27
上傳用戶:sxdtlqqjl
多功能EDA仿真/教學實驗系統產品簡介北京普立華電子科技有限公司研發部提供核心模塊-單片機系統核心模塊-CPLD核心模塊-FP
上傳時間: 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領域的研究熱點,光纖光柵傳感器可以工作在強電磁場、高溫有腐蝕性的以及有爆炸危險性的惡劣環境中,且易于將多個光纖光柵串聯在一起構成光纖光柵陣列,實現分布式傳感,這是其他傳感元件所不及的。 本文設計了光纖光柵傳感網絡可調諧法布里-珀羅(Fabry-Perot)腔解調測試系統。系統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技術,分析和比較了幾種常見的波長解調方法,由于F-P腔調諧范圍寬,可以實現多點測量,因此決定采用可調諧F.P腔法進行信號解調。對可調諧 F-P腔解調法做了理論分析和研究,并通過Matlab仿真對影響F-P濾波效果的腔長和反射率兩個參數進行了優化設計。在電路部分,首先設計整形電路將光電探測器的輸出信號整形成矩形脈沖信號,設計了計算中心波長的方法,最后搭建了硬件電路來驗證中心波長的計算方法。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,復位電路,串口電路,JTAG 調試接口,數碼管顯示等。軟件方面,設計了相關的軟件程序和模擬信號源,最后利用模擬信號源作為該解調測試系統的信號進行實驗驗證,得出實驗數據,經過分析驗證了該解調測試系統的可行性。
上傳時間: 2013-05-26
上傳用戶:hooooor
在無線通信系統全面進入3G并開始邁向 4G的過程中,使用數字預失真技術(Digital Pre-distortion,以下簡稱DPD)對發射機的功放進行線性化是一門關鍵技術。功率放大器是通信系統中影響系統性能和覆蓋范圍的關鍵部件,非線性是功放的固有特性。非線性會引起頻譜增長(spectral re-growth),從而造成鄰道干擾,使帶外雜散達不到協議標準規定的要求。非線性也會造成帶內失真,帶來系統誤碼率增大的問題。
上傳時間: 2013-10-19
上傳用戶:yy_cn
自己在學校的時候做的一些單片機仿真實例和一些資料,希望對大家有些幫助
上傳時間: 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
上傳時間: 2015-01-02
上傳用戶:小楓殘月
介紹了以PLC為控制單元,變頻器為執行單元的控制系統及其在煙支輸送儲存系統中的應用,并給出了系統的組成、硬件的配置及具體的實現方法。關鍵詞 : PLC 變頻器輸送儲存系統 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
上傳時間: 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== )
上傳時間: 2015-07-16
上傳用戶:ynsnjs
FLASH文件系統的源碼,Flash 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.
上傳時間: 2015-11-29
上傳用戶:問題問題