本源碼程序采用用51單片機(jī)AT89C55分控采用軟件模擬的方式輸出SPI信號(hào)! 控制16段LED護(hù)欄管的單色跳變,跑動(dòng)追逐等模式! 為了達(dá)到 各控制器的變化同步!采用RS-485通訊的方式!由主控發(fā)送命令!使各分控制器 變化模式達(dá)到同步效果!主控制器同樣采用AT89C55單片機(jī)設(shè)計(jì)!通訊方式采用RS-485
上傳時(shí)間: 2014-01-06
上傳用戶:wab1981
public class guestbook{ String sDBDriver = "sun.jdbc.odbc.JdbcOdbcDriver" String sConnStr = "jdbc:odbc:guestbook" Connection conn = null ResultSet rs = null
標(biāo)簽: String JdbcOdbcDriver guestbook sDBDriver
上傳時(shí)間: 2017-05-23
上傳用戶:qiaoyue
KaOS is a real-time operating system that has been implemented with the basic real-time constraints and it supports dynamic memory module accessing of sd/mmc cards
標(biāo)簽: real-time constraints implemented operating
上傳時(shí)間: 2013-12-31
上傳用戶:cuibaigao
KaOS is a real-time operating system that has been implemented with the basic real-time constraints and it supports dynamic memory module accessing of sd/mmc cards
標(biāo)簽: real-time constraints implemented operating
上傳時(shí)間: 2017-05-24
上傳用戶:330402686
電腦技巧,打開“組策略輸入“dxdiag ” 打開 DirectX 診斷工具 輸入“regedit.exe” 打開注冊(cè)表輸入“Services.msc ” 打開服務(wù)輸入“msconfig.exe” 打開系統(tǒng)配置實(shí)用程序輸入“mmc.exe” 打開控制臺(tái) 打開備份win98:scanreg
標(biāo)簽: Services DirectX regedit dxdiag
上傳時(shí)間: 2017-05-28
上傳用戶:alan-ee
串行通信接口標(biāo)準(zhǔn)經(jīng)過使用和發(fā)展,目前已經(jīng)有幾種。但都是在RS-232標(biāo)準(zhǔn)的基礎(chǔ)上 經(jīng)過改進(jìn)而形成的。所以,以RS-232C為主來討論。RS-323C 標(biāo)準(zhǔn)是美國EIA(電子工業(yè)聯(lián)合 會(huì))與BELL等公司一起開發(fā)的1969 年公布的通信協(xié)議。它適合于數(shù)據(jù)傳輸速率在0~ 20000b/s 范圍內(nèi)的通信。這個(gè)標(biāo)準(zhǔn)對(duì)串行通信接口的有關(guān)問題,如信號(hào)線功能、電器特性 都作了明確規(guī)定。由于通行設(shè)備廠商都生產(chǎn)與RS-232C制式兼容的通信設(shè)備,因此,它作為 一種標(biāo)準(zhǔn),目前已在微機(jī)通信接口中廣泛采用。
標(biāo)簽: 串行通信 接口標(biāo)準(zhǔn) 發(fā)展
上傳時(shí)間: 2017-06-04
上傳用戶:trepb001
基于VB實(shí)現(xiàn)PC機(jī)與單片機(jī)的串行通訊 隨著計(jì)算機(jī)技術(shù)尤其是單片微型機(jī)技術(shù)的發(fā)展,人們已越來越多地采用單片機(jī)來對(duì)一些工業(yè)控制系統(tǒng)中如溫度、流量和壓力等參數(shù)進(jìn)行檢測(cè)和控制。PC機(jī)具有強(qiáng)大的監(jiān)控和管理功能,而單片機(jī)則具有快速及靈活的控制特點(diǎn),通過PC機(jī)的RS-232串行接口與外部設(shè)備進(jìn)行通信,是許多測(cè)控系
標(biāo)簽: PC機(jī)與單片機(jī) 串行通訊 計(jì)算機(jī)技術(shù) 微型機(jī)
上傳時(shí)間: 2014-01-02
上傳用戶:秦莞爾w
With this example-driven book, you get a quick, practical, and thorough introduction to Java s API for XML Web Services (JAX-WS) and the Java API for RESTful Web Services (JAX-RS). Java Web Services: Up and Running takes a clear, no-nonsense approach to these technologies by providing you with a mix of architectural overview, complete working code examples, and short yet precise instructions for compiling, deploying, and executing a sample application. You ll not only learn how to write web services from scratch, but also how to integrate existing services into your Java applications. All the source code for the examples is available from the book s companion website.
標(biāo)簽: example-driven introduction practical thorough
上傳時(shí)間: 2013-12-18
上傳用戶:lnnn30
This application note describes the design and implementation of a usb mass storage devic using a secure digital card,which should prove useful to developers of usb mass storage solution.This application may be used as a stand-alone MSD or as a Secure Digital/Multimedia Card (SD/MMC) reader/ writer interface.
標(biāo)簽: implementation application describes storage
上傳時(shí)間: 2017-06-24
上傳用戶:weiwolkt
橢圓濾波器,fp=2400hz,fs=5000hz,rp=3dB,rs=25dB,求其3dB時(shí)的各項(xiàng)參數(shù)!
上傳時(shí)間: 2017-07-01
上傳用戶:h886166
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