1FT5102-0AC01-2
1FT5102-0AC01-2電路原理:利用三態(tài)輸出鎖存器74hc373作為pc機(jī)epp并行口與mcp2510之間的接口,利用并行口的控制信號來控制鎖存使能信號le和輸出使能信號oe,實現(xiàn)計算機(jī)并行數(shù)據(jù)與mcp2510中spi總線之間的數(shù)據(jù)交換。關(guān)鍵問題要通過系統(tǒng)調(diào)用主板上epp芯片里的微程序在并行口的nwrite, naddstb, ndatastb, nreset等引腳產(chǎn)生相應(yīng)的讀寫周期時序,使得對寄存聯(lián)系人: 蔡工
聯(lián)系電話:0592-2350125 * 18050025541
聯(lián)系QQ:2851759116
公司傳真:0592-5580710
公司全稱:
廈門興銳達(dá)自動化設(shè)備有限公司
http://www.xrdzidonghua.com
公司地址:
福建省廈門市五緣灣運(yùn)動館營運(yùn)中心1號樓2層E-F單元器的讀寫產(chǎn)生互鎖信號。當(dāng)nwrite信號為低電平時,數(shù)據(jù)由epp向si引腳逐位寫出,當(dāng) nwrite信號為高電平時,數(shù)據(jù)由epp從so逐位讀入;當(dāng)ndatastb引腳為高電平時,q0~q7的數(shù)據(jù)隨著d0~d7的變化而變化,當(dāng) ndatastb引腳為低電平時,鎖存使能信號有效,將d段的數(shù)據(jù)鎖存入q端,通過對q端的數(shù)據(jù)的改變,實現(xiàn)對mcp2510中spi信號的模擬。l Westinghouse(西屋): OVATION系統(tǒng)、WDPF系統(tǒng)、WEStation系統(tǒng)備件。
l Rockwell Allen-Bradley: Reliance瑞恩、SLC500/1747/1746、MicroLogix/1761/1763/1762/1766/1764、CompactLogix/1769/1768、Logix5000/1756/1789/1794/1760/1788、PLC-5/1771/1785等。
l Schneider Modicon(施耐德莫迪康):Quantum 140系列處理器、控制卡、電源模塊等。
l ABB:工業(yè)機(jī)器人備件DSQC系列、Bailey INFI 90等。
l Siemens(西門子):Siemens MOORE, Siemens Simatic C1,Siemens數(shù)控系統(tǒng)等。
l Motorola(摩托羅拉):MVME 162、MVME 167、MVME1772、MVME177等系列。
l XYCOM:I/O 、VME板和處理器等。
l GE FANUC(GE發(fā)那科):模塊、卡件、驅(qū)動器等各類備件。
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