编写测试代码是验证HDL设计的主要手段

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  • 2022-04-23 05:05
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本应用笔记是专门为没有测试编写经验并对 HDL 验证流程陌生的逻辑设计者而编写的。 编写测试代码是验证 HDL 设计的主要手段。本应用笔记为创建或构建有效的测试设计提供了准则。同时给出了一个为任何设计开发自检测测试的算法。
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<html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta charset="utf-8"> <meta name="generator" content="pdf2htmlEX"> <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"> <link rel="stylesheet" href="https://static.pudn.com/base/css/base.min.css"> <link rel="stylesheet" href="https://static.pudn.com/base/css/fancy.min.css"> <link rel="stylesheet" href="https://static.pudn.com/prod/directory_preview_static/62631b034c65f41259957c23/raw.css"> <script src="https://static.pudn.com/base/js/compatibility.min.js"></script> <script src="https://static.pudn.com/base/js/pdf2htmlEX.min.js"></script> <script> try{ pdf2htmlEX.defaultViewer = new pdf2htmlEX.Viewer({}); }catch(e){} </script> <title></title> </head> <body> <div id="sidebar" style="display: none"> <div id="outline"> </div> </div> <div id="pf1" class="pf w0 h0" data-page-no="1"><div class="pc pc1 w0 h0"><img class="bi x0 y0 w1 h1" alt="" src="https://static.pudn.com/prod/directory_preview_static/62631b034c65f41259957c23/bg1.jpg"><div class="t m0 x1 h2 y1 ff1 fs0 fc0 sc0 ls0 ws0">W<span class="_ _0"></span>riting Efficient T<span class="_ _1"></span>estbenches </div><div class="t m0 x2 h3 y2 ff2 fs1 fc1 sc0 ls1 ws1">&#21407;&#25991;&#20316;&#32773;&#65306;<span class="ff3 ls2 ws2">Mujtaba Hamid </span></div><div class="t m0 x3 h3 y3 ff2 fs1 fc1 sc0 ls1 ws1">&#32763;&#35793;&#65306;<span class="ff3 ls3">phixcoco@freecity<span class="_ _2"></span>.cn</span></div><div class="t m0 x4 h3 y4 ff3 fs2 fc1 sc0 ls1 ws1">(<span class="ff2">&#27993;&#27743;&#22823;&#23398;&#39128;&#28218;&#27700;&#20113;&#38388;&#35770;&#22363;</span>)<span class="fs1"> </span></div><div class="t m0 x5 h4 y5 ff3 fs2 fc1 sc0 ls1 ws1"> </div><div class="t m0 x5 h4 y6 ff3 fs2 fc1 sc0 ls1 ws1">[<span class="ff2">&#35831;&#38405;&#35835;&#25991;&#26723;&#26368;&#21518;&#30340;&#35828;&#26126;</span><span class="ls4">] </span></div><div class="t m0 x5 h5 y7 ff2 fs2 fc1 sc1 ls5 ws1">&#25688;&#35201;&#65306;<span class="ff1 sc0 ls1"> </span></div><div class="t m0 x5 h4 y8 ff2 fs2 fc1 sc0 ls1 ws1">&#26412;&#24212;&#29992;&#31508;&#35760;&#26159;&#19987;&#38376;&#20026;&#27809;&#26377;&#27979;&#35797;&#32534;&#20889;&#32463;&#39564;&#24182;&#23545;<span class="_ _3"> </span><span class="ff3 ls6">HDL<span class="_"> </span></span>&#39564;&#35777;&#27969;&#31243;&#38476;&#29983;&#30340;&#36923;&#36753;&#35774;&#35745;&#32773;&#32780;&#32534;&#20889;&#30340;&#12290;<span class="ff3"> </span></div><div class="t m0 x5 h4 y9 ff2 fs2 fc1 sc0 ls1 ws1">&#32534;&#20889;&#27979;&#35797;&#20195;&#30721;&#26159;&#39564;&#35777;<span class="_ _3"> </span><span class="ff3 ls6">HDL<span class="_"> </span></span>&#35774;&#35745;&#30340;&#20027;&#35201;&#25163;&#27573;&#12290;<span class="_ _1"></span>&#26412;&#24212;&#29992;&#31508;&#35760;&#20026;&#21019;&#24314;&#25110;&#26500;&#24314;&#26377;&#25928;&#30340;&#27979;&#35797;&#35774;&#35745;&#25552;&#20379;&#20102;&#20934;&#21017;&#12290;<span class="_ _1"></span>&#21516;&#26102;&#32473;</div><div class="t m0 x5 h4 ya ff2 fs2 fc1 sc0 ls1 ws1">&#20986;&#20102;&#19968;&#20010;&#20026;&#20219;&#20309;&#35774;&#35745;&#24320;&#21457;&#33258;&#26816;&#27979;&#27979;&#35797;&#30340;&#31639;&#27861;&#12290;<span class="ff3"> </span></div><div class="t m0 x5 h4 yb ff2 fs2 fc1 sc0 ls1 ws1">&#28041;&#21450;&#30340;&#25152;&#26377;&#35774;&#35745;&#25991;&#20214;&#21487;&#20197;&#20174;&#20197;&#19979;&#30340;&#31449;&#28857;&#33719;&#24471;&#65306;<span class="ff3"> </span></div><div class="t m0 x5 h4 yc ff3 fs2 fc1 sc0 ls7 ws1">PC: <span class="fc2">ftp://ftp.xilinx.com/pub/ap<span class="ls8">plications/xapp/xapp199.zip</span></span></div><div class="t m0 x6 h4 yd ff3 fs2 fc1 sc0 ls1 ws1"> </div><div class="t m0 x5 h4 ye ff3 fs2 fc1 sc0 ls9 ws1">UNIX: <span class="fc2 ls8">ftp://ftp.xilinx.com/pub/applications/xapp/xapp199.tar<span class="_ _2"></span>.gz</span></div><div class="t m0 x7 h4 yf ff3 fs2 fc1 sc0 ls1 ws1"> </div><div class="t m0 x5 h3 y10 ff3 fs1 fc1 sc0 ls1 ws1"> </div><div class="t m0 x5 h6 y11 ff1 fs3 fc0 sc0 ls1 ws1">1<span class="_"> </span><span class="ff2 sc2 lsa">&#31616;&#20171;</span><span class="ff3 fs1 fc1"> </span></div><div class="t m0 x5 h7 y12 ff2 fs1 fc1 sc0 ls1 ws1">&#30001;&#20110;&#35774;&#35745;&#30340;&#35268;&#27169;&#36234;&#26469;&#36234;&#22823;&#21644;&#36234;&#26469;&#36234;&#22797;&#26434;&#65292;<span class="_ _4"></span>&#25968;&#23383;&#35774;&#35745;&#30340;&#39564;&#35777;&#24050;&#32463;&#25104;&#20026;&#19968;&#20010;&#26085;&#30410;&#22256;&#38590;&#21644;&#32321;&#29712;&#30340;&#20219;</div><div class="t m0 x5 h7 y13 ff2 fs1 fc1 sc0 ls1 ws1">&#21153;&#12290;<span class="_ _5"></span>&#39564;&#35777;&#24037;&#31243;&#24072;&#20204;&#36816;&#29992;&#22810;&#31181;&#39564;&#35777;&#24037;&#20855;&#21644;&#26041;&#27861;&#26469;&#24212;&#23545;&#25361;&#25112;&#12290;<span class="_ _5"></span>&#23545;&#20110;&#22823;&#30340;&#31995;&#32479;&#65292;<span class="_ _5"></span>&#22914;&#20960;&#30334;&#19975;&#38376;&#30340;&#35774;&#35745;&#65292;</div><div class="t m0 x5 h7 y14 ff2 fs1 fc1 sc0 ls1 ws1">&#24037;&#31243;&#24072;&#20204;&#36890;&#24120;&#20351;&#29992;&#19968;&#31995;&#21015;&#23436;&#21892;&#30340;&#39564;&#35777;&#24037;&#20855;&#12290;<span class="_ _1"></span>&#24403;&#28982;&#65292;<span class="_ _6"></span>&#23545;&#20110;&#19968;&#20123;&#23567;&#30340;&#35774;&#35745;&#65292;<span class="_ _1"></span>&#35774;&#35745;&#24037;&#31243;&#24072;&#24120;&#24120;&#21457;&#29616;</div><div class="t m0 x5 h3 y15 ff2 fs1 fc1 sc0 ls1 ws1">&#33021;&#32534;&#20889;&#27979;&#35797;&#35774;&#35745;&#30340;<span class="_ _7"> </span><span class="ff3 lsb">hdl<span class="_"> </span></span>&#20223;&#30495;&#22120;&#23601;&#21487;&#20197;&#20570;&#24471;&#24456;&#22909;&#12290;<span class="ff3"> </span></div><div class="t m0 x5 h3 y16 ff2 fs1 fc1 sc0 ls1 ws1">&#27979;&#35797;&#35774;&#35745;&#24050;&#32463;&#25104;&#20026;&#19968;&#20010;&#39564;&#35777;&#39640;&#32423;&#35821;&#35328;<span class="_ _7"> </span><span class="ff3 lsc ws3">HLL<span class="_ _0"></span> (High-Level Language)<span class="ff2 ls1 ws1">&#25551;&#36848;&#30340;&#35774;&#35745;&#30340;&#26631;&#20934;&#26041;&#27861;&#12290;<span class="ff3"> </span></span></span></div><div class="t m0 x5 h3 y17 ff2 fs1 fc1 sc0 ls1 ws1">&#20856;&#22411;&#30340;&#65292;&#27979;&#35797;&#35774;&#35745;&#23436;&#25104;&#20197;&#19979;&#20219;&#21153;&#65306;<span class="ff3"> </span></div><div class="t m0 x5 h3 y18 ff2 fs1 fc1 sc0 ls1 ws1">&#183;<span class="ff3"> <span class="_ _8"> </span></span>&#22312;&#27979;&#35797;&#20013;&#23454;&#20363;&#21270;&#35774;&#35745;&#27169;&#22359;<span class="_ _7"> </span><span class="ff3 lsd ws4">Design Under T<span class="_ _2"></span>est<span class="ff2 ls1 ws1">&#65288;<span class="ff3 lse">DUT</span>&#65289;<span class="_ _9"></span>&#65307;<span class="ff3"> </span></span></span></div><div class="t m0 x5 h3 y19 ff2 fs1 fc1 sc0 ls1 ws1">&#183;<span class="ff3"> <span class="_ _8"> </span></span>&#21521;&#35201;&#36827;&#34892;&#27979;&#35797;&#30340;&#27169;&#22359;&#65288;<span class="ff3 lse">DUT</span>&#65289;&#36755;&#20837;&#27979;&#35797;&#21521;&#37327;&#36827;&#34892;&#20223;&#30495;&#65307;<span class="ff3"> </span></div><div class="t m0 x5 h3 y1a ff2 fs1 fc1 sc0 ls1 ws1">&#183;<span class="ff3"> <span class="_ _8"> </span></span>&#20223;&#30495;&#36890;&#36807;&#20351;&#29992;&#27169;&#22359;&#30340;&#27979;&#35797;&#21521;&#37327;&#26469;&#20223;&#30495;&#27979;&#35797;&#35774;&#35745;&#65307;<span class="ff3"> </span></div><div class="t m0 x5 h3 y1b ff2 fs1 fc1 sc0 ls1 ws1">&#183;<span class="ff3"> <span class="_ _8"> </span></span>&#20223;&#30495;&#32467;&#26524;&#36755;&#20986;&#21040;&#32456;&#31471;&#25110;&#27874;&#24418;&#31383;&#21475;&#20197;&#35266;&#23519;&#32467;&#26524;&#65307;<span class="ff3"> </span></div><div class="t m0 x5 h3 y1c ff2 fs1 fc1 sc0 ls1 ws1">&#183;<span class="ff3"> <span class="_ _8"> </span></span>&#23558;&#23454;&#38469;&#32467;&#26524;&#21644;&#39044;&#26399;&#32467;&#26524;&#36827;&#34892;&#27604;&#36739;&#65288;&#21487;&#36873;&#27493;&#39588;&#65289;<span class="_ _9"></span>&#12290;<span class="ff3"> </span></div><div class="t m0 x5 h3 y1d ff2 fs1 fc1 sc0 ls1 ws1">&#19968;&#33324;&#27979;&#35797;&#20351;&#29992;&#24037;&#19994;&#26631;&#20934;&#30340;<span class="_ _7"> </span><span class="ff3 lse">VHDL<span class="_"> </span></span>&#25110;<span class="_ _7"> </span><span class="ff3 lsf">V<span class="_ _2"></span>erilog<span class="_"> </span><span class="ff2 ls1">&#30828;&#20214;<span class="_ _0"></span>&#25551;&#36848;&#35821;&#35328;&#26469;&#32534;&#20889;&#12290;<span class="_ _2"></span>&#27979;&#35797;&#20013;&#35843;&#29992;&#21151;&#33021;&#35774;&#35745;&#65292;<span class="_ _2"></span>&#28982;</span></span></div><div class="t m0 x5 h7 y1e ff2 fs1 fc1 sc0 ls1 ws1">&#21518;&#20223;&#30495;&#12290;<span class="_ _4"></span>&#22797;&#26434;&#30340;&#27979;&#35797;&#35774;&#35745;&#23436;&#25104;&#19968;&#20123;&#38468;&#21152;&#30340;&#21151;&#33021;&#8213;&#8213;&#22914;&#23427;&#20204;&#21253;&#21547;&#36923;&#36753;&#27169;&#22359;&#26469;&#20026;&#35774;&#35745;&#20135;&#29983;&#36866;&#24403;&#30340;</div><div class="t m0 x5 h3 y1f ff2 fs1 fc1 sc0 ls1 ws1">&#28608;&#21169;&#25110;&#32773;&#23558;&#23454;&#38469;&#32467;&#26524;&#19982;&#39044;&#26399;&#32467;&#26524;&#20570;&#27604;&#36739;&#12290;<span class="ff3"> </span></div><div class="t m0 x5 h7 y20 ff2 fs1 fc1 sc0 ls1 ws1">&#21518;&#32493;&#30340;&#31456;&#33410;&#35828;&#26126;&#20102;&#19968;&#20010;&#20248;&#33391;&#30340;&#27979;&#35797;&#35774;&#35745;&#30340;&#32467;&#26500;&#65292;<span class="_ _4"></span>&#24182;&#25552;&#20379;&#20102;&#19968;&#20010;&#33258;&#26816;&#27979;&#27979;&#35797;&#30340;&#20363;&#23376;&#8213;&#8213;&#29992;&#20197;&#33258;</div><div class="t m0 x5 h3 y21 ff2 fs1 fc1 sc0 ls1 ws1">&#21160;&#21270;&#22320;&#27604;&#36739;&#23454;&#38469;&#32467;&#26524;&#21644;&#27979;&#35797;&#35774;&#35745;&#30340;&#39044;&#26399;&#32467;&#26524;&#12290;<span class="ff3"> </span></div><div class="t m0 x5 h3 y22 ff2 fs1 fc1 sc0 ls1 ws1">&#22270;<span class="_ _a"> </span><span class="ff3">1<span class="_ _a"> </span></span><span class="ls10">&#32473;&#20986;&#20102;&#31526;&#21512;&#19978;&#36848;&#27493;&#39588;&#30340;&#19968;&#20010;&#26631;<span class="_ _0"></span>&#20934;&#30340;<span class="_ _b"> </span><span class="ff3 lse">HDL<span class="_ _a"> </span></span>&#39564;&#35777;&#27969;&#31243;&#12290;&#30001;&#20110;&#27979;&#35797;&#35774;&#35745;&#20351;&#29992;<span class="_ _b"> </span><span class="ff3 lse">VHDL<span class="_ _a"> </span></span><span class="ls1">&#25110;</span></span></div><div class="t m0 x5 h3 y23 ff3 fs1 fc1 sc0 ls11 ws1">V<span class="_ _2"></span>erilo<span class="_ _0"></span>gHDL<span class="_"> </span><span class="ff2 ls1">&#32534;&#20889;&#65292;<span class="_ _c"></span>&#22240;&#27492;&#27979;&#35797;&#35774;&#35745;&#30340;&#39564;&#35777;&#27969;&#31243;&#21487;&#20197;&#22312;&#21508;&#24179;&#21488;&#25110;&#21508;&#20844;&#21496;&#25552;&#20379;&#30340;&#36719;&#20214;&#24037;&#20855;&#38388;&#31227;&#26893;&#12290;</span></div><div class="t m0 x5 h3 y24 ff2 fs1 fc1 sc0 ls1 ws1">&#21478;&#22806;&#65292;&#30001;&#20110;<span class="_ _7"> </span><span class="ff3 lse">VHDL<span class="_"> </span></span>&#25110;<span class="_ _7"> </span><span class="ff3 ls11">V<span class="_ _2"></span>erilogHDL<span class="_"> </span><span class="ff2 ls1">&#26159;&#20844;&#24320;&#21270;&#30340;&#26631;&#20934;&#35821;&#35328;&#65292;&#29992;<span class="_ _7"> </span></span><span class="lse">VHDL<span class="_"> </span><span class="ff2 ls1">&#25110;<span class="_ _7"> </span></span></span>V<span class="_ _6"></span>erilogHDL<span class="_"> </span><span class="ff2 ls1">&#32534;&#20889;&#30340;&#39564;</span></span></div><div class="t m0 x5 h3 y25 ff2 fs1 fc1 sc0 ls1 ws1">&#35777;&#27979;&#35797;&#21253;&#21487;&#20197;&#26041;&#20415;&#22320;&#20197;&#21518;&#30340;&#35774;&#35745;&#20013;&#37325;&#29992;&#12290;<span class="ff3"> </span></div></div><div class="pi" data-data='{"ctm":[1.611639,0.000000,0.000000,1.611639,0.000000,0.000000]}'></div></div> </body> </html>
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