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<html><head><title>饮水思源精华区</title><Content-type: text/html; charset=gb2312><link rel=stylesheet type=text/css href="bbsdl.css"></head><table cellspacing=0 class=title width=90%><th class=title align=left width=20%>饮水思源站</th><th class=title align=center width=60%>文章阅读</th><th class=title align=right width=20%>精华区离线浏览</th></tr></table><hr><table align=center cellspacing=1 class=doc><tr><td>发信人:&nbsp;fangf&nbsp;(方方),&nbsp;信区:&nbsp;DSP<br>标&nbsp;&nbsp;题:&nbsp;高速实时数字信号处理技术探析(七)&nbsp;&nbsp;<br>发信站:&nbsp;饮水思源站&nbsp;(Mon&nbsp;Jun&nbsp;&nbsp;7&nbsp;18:24:00&nbsp;1999)&nbsp;,&nbsp;站内信件<br>&nbsp;&nbsp;----&nbsp;采&nbsp;用EDA&nbsp;的PCB&nbsp;工&nbsp;具&nbsp;的&nbsp;设&nbsp;计&nbsp;流&nbsp;程&nbsp;是：&nbsp;<br><br>&nbsp;&nbsp;<br>&nbsp;&nbsp;以TopDown&nbsp;方&nbsp;式&nbsp;建&nbsp;元&nbsp;件&nbsp;库、&nbsp;绘&nbsp;制&nbsp;系&nbsp;统&nbsp;原&nbsp;理&nbsp;图&nbsp;<br><br>&nbsp;&nbsp;<br>&nbsp;&nbsp;建&nbsp;几&nbsp;何&nbsp;封&nbsp;装&nbsp;库&nbsp;及&nbsp;元&nbsp;件&nbsp;与&nbsp;封&nbsp;装&nbsp;映&nbsp;射&nbsp;关&nbsp;系&nbsp;<br><br>&nbsp;&nbsp;<br>&nbsp;&nbsp;准&nbsp;备PCB&nbsp;版&nbsp;图&nbsp;设&nbsp;计&nbsp;数&nbsp;据，&nbsp;生&nbsp;成&nbsp;网&nbsp;络&nbsp;表&nbsp;<br><br>&nbsp;&nbsp;<br>&nbsp;&nbsp;拓&nbsp;扑&nbsp;规&nbsp;则&nbsp;设&nbsp;置、&nbsp;阻&nbsp;抗&nbsp;计&nbsp;算、&nbsp;规&nbsp;则&nbsp;驱&nbsp;动&nbsp;的&nbsp;布&nbsp;局&nbsp;布&nbsp;线&nbsp;<br><br>&nbsp;&nbsp;<br>&nbsp;&nbsp;信&nbsp;号&nbsp;分&nbsp;析：TLC&nbsp;传&nbsp;输&nbsp;线&nbsp;分&nbsp;析、XTK&nbsp;串&nbsp;扰&nbsp;分&nbsp;析&nbsp;<br><br>&nbsp;&nbsp;<br>&nbsp;&nbsp;验&nbsp;证&nbsp;高&nbsp;速&nbsp;器&nbsp;件&nbsp;的&nbsp;板&nbsp;极&nbsp;时&nbsp;延、&nbsp;按&nbsp;电&nbsp;气&nbsp;要&nbsp;求&nbsp;驱&nbsp;动&nbsp;的&nbsp;布&nbsp;线&nbsp;调&nbsp;<br>&nbsp;&nbsp;<br>&nbsp;&nbsp;整、&nbsp;基&nbsp;于IBIS&nbsp;模&nbsp;型&nbsp;的&nbsp;信&nbsp;号&nbsp;完&nbsp;整&nbsp;性&nbsp;分&nbsp;析&nbsp;<br><br>&nbsp;&nbsp;<br>&nbsp;&nbsp;生&nbsp;成Gerber&nbsp;格&nbsp;式&nbsp;光&nbsp;绘&nbsp;数&nbsp;据&nbsp;文&nbsp;件、&nbsp;送&nbsp;制&nbsp;板&nbsp;厂&nbsp;家&nbsp;加&nbsp;工<br>&nbsp;&nbsp;<br>&nbsp;&nbsp;----(2)EPLD/FPGA/ASIC&nbsp;设&nbsp;计&nbsp;<br><br>&nbsp;&nbsp;<br>&nbsp;&nbsp;----EPLD/FPGA/ASIC&nbsp;设&nbsp;计&nbsp;可&nbsp;以&nbsp;采&nbsp;用&nbsp;单&nbsp;一&nbsp;芯&nbsp;片&nbsp;实&nbsp;现&nbsp;整&nbsp;个&nbsp;数&nbsp;字&nbsp;<br>&nbsp;&nbsp;<br>&nbsp;&nbsp;信&nbsp;号&nbsp;处&nbsp;理&nbsp;系&nbsp;统，&nbsp;即“&nbsp;片&nbsp;上&nbsp;系&nbsp;统”&nbsp;；&nbsp;其&nbsp;中EPLD/FPGA&nbsp;又&nbsp;有&nbsp;可&nbsp;多<br>&nbsp;&nbsp;<br>&nbsp;&nbsp;&nbsp;次&nbsp;编&nbsp;程，&nbsp;反&nbsp;复&nbsp;擦&nbsp;写&nbsp;的&nbsp;功&nbsp;能，&nbsp;因&nbsp;此&nbsp;在&nbsp;样&nbsp;机&nbsp;阶&nbsp;段&nbsp;有&nbsp;独&nbsp;到&nbsp;的&nbsp;<br>&nbsp;&nbsp;<br>&nbsp;&nbsp;优&nbsp;势。&nbsp;其&nbsp;大&nbsp;致&nbsp;的&nbsp;设&nbsp;计&nbsp;流&nbsp;程&nbsp;是：&nbsp;<br><br>&nbsp;&nbsp;<br>&nbsp;&nbsp;设&nbsp;计&nbsp;输&nbsp;入：&nbsp;原&nbsp;理&nbsp;图、&nbsp;硬&nbsp;件&nbsp;描&nbsp;述&nbsp;语&nbsp;言（VHDL、Verilog&nbsp;等）、&nbsp;<br>&nbsp;&nbsp;<br>&nbsp;&nbsp;状&nbsp;态&nbsp;机、&nbsp;布&nbsp;尔&nbsp;函&nbsp;数&nbsp;等；&nbsp;一&nbsp;般&nbsp;应&nbsp;采&nbsp;用&nbsp;层&nbsp;次&nbsp;化&nbsp;设&nbsp;计&nbsp;<br><br>&nbsp;&nbsp;<br>&nbsp;&nbsp;逻&nbsp;辑&nbsp;综&nbsp;合，&nbsp;产&nbsp;生&nbsp;网&nbsp;表&nbsp;文&nbsp;件XNF&nbsp;或EDIF&nbsp;<br><br>&nbsp;&nbsp;<br>&nbsp;&nbsp;功&nbsp;能&nbsp;仿&nbsp;真&nbsp;<br><br>&nbsp;&nbsp;<br>&nbsp;&nbsp;逻&nbsp;辑&nbsp;分&nbsp;割&nbsp;及&nbsp;映&nbsp;射&nbsp;<br><br>&nbsp;&nbsp;<br>&nbsp;&nbsp;布&nbsp;局、&nbsp;布&nbsp;线&nbsp;<br><br>&nbsp;&nbsp;<br>&nbsp;&nbsp;延&nbsp;时&nbsp;信&nbsp;息&nbsp;反&nbsp;标、&nbsp;时&nbsp;序&nbsp;仿&nbsp;真&nbsp;<br><br>&nbsp;&nbsp;<br>&nbsp;&nbsp;产&nbsp;生&nbsp;配&nbsp;置&nbsp;文&nbsp;件<br>&nbsp;&nbsp;<br>&nbsp;&nbsp;----&nbsp;总&nbsp;之，EDA&nbsp;的PCB&nbsp;技&nbsp;术&nbsp;追&nbsp;求&nbsp;的&nbsp;是&nbsp;在&nbsp;系&nbsp;统&nbsp;设&nbsp;计&nbsp;阶&nbsp;段&nbsp;排&nbsp;除&nbsp;<br>&nbsp;&nbsp;<br>&nbsp;&nbsp;一&nbsp;切&nbsp;可&nbsp;能&nbsp;导&nbsp;致&nbsp;系&nbsp;统&nbsp;失&nbsp;效&nbsp;的&nbsp;因&nbsp;素，&nbsp;从&nbsp;而&nbsp;保&nbsp;证&nbsp;整&nbsp;个&nbsp;系&nbsp;统&nbsp;设<br>&nbsp;&nbsp;<br>&nbsp;&nbsp;&nbsp;计&nbsp;生&nbsp;产&nbsp;调&nbsp;试&nbsp;一&nbsp;次&nbsp;通&nbsp;过&nbsp;成&nbsp;功（First&nbsp;Pass&nbsp;Success）。&nbsp;而&nbsp;其&nbsp;中&nbsp;<br>&nbsp;&nbsp;<br>&nbsp;&nbsp;的EPLD/FPGA/&nbsp;ASIC&nbsp;设&nbsp;计&nbsp;又&nbsp;有&nbsp;减&nbsp;小&nbsp;系&nbsp;统&nbsp;体&nbsp;积、&nbsp;功&nbsp;耗，&nbsp;在&nbsp;单&nbsp;片&nbsp;<br>&nbsp;&nbsp;<br>&nbsp;&nbsp;上&nbsp;集&nbsp;成&nbsp;整&nbsp;个&nbsp;系&nbsp;统&nbsp;的&nbsp;可&nbsp;能，&nbsp;因&nbsp;此&nbsp;是&nbsp;高&nbsp;速&nbsp;实&nbsp;时&nbsp;数&nbsp;字&nbsp;信&nbsp;号&nbsp;处&nbsp;<br>&nbsp;&nbsp;<br>&nbsp;&nbsp;理&nbsp;系&nbsp;统&nbsp;设&nbsp;计&nbsp;的&nbsp;重&nbsp;要&nbsp;保&nbsp;证。&nbsp;<br>&nbsp;&nbsp;<br>&nbsp;&nbsp;<br>--<br>-----------------------------------------------<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;因一个词的力量<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;我重新开始生活<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;我生来就认识你<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;要把你称作<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;自由<br><br>※&nbsp;来源:·饮水思源站&nbsp;bbs.sjtu.edu.cn·[FROM:&nbsp;202.120.8.3]<br></tr></table><br><caption 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