{"id":119244,"date":"2026-10-29T06:24:27","date_gmt":"2026-10-28T22:24:27","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/119244.html"},"modified":"2026-10-29T06:24:27","modified_gmt":"2026-10-28T22:24:27","slug":"%e5%b5%8c%e5%85%a5%e5%bc%8f%e8%bd%af%e4%bb%b6%e8%a6%86%e7%9b%96%e7%8e%87%e6%b5%8b%e8%af%95%ef%bc%88%e5%8d%81%e5%85%ad%ef%bc%89-vectorcast-%e5%b5%8c%e5%85%a5%e5%bc%8f%e8%a6%86%e7%9b%96","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/119244.html","title":{"rendered":"\u5d4c\u5165\u5f0f\u8f6f\u4ef6\u8986\u76d6\u7387\u6d4b\u8bd5\uff08\u5341\u516d\uff09\u2014\u2014VectorCAST \u5d4c\u5165\u5f0f\u8986\u76d6\u7387\u5b9e\u6218\uff1a\u4ece\u8bed\u53e5\u8986\u76d6\u6253\u5230 MC\/DC"},"content":{"rendered":"<p>\u2744\ufe0f \u6211\u7684\u4e2a\u4eba\u4e13\u680f&#xff1a;\u00a0<br \/>\n\u300a\u667a\u80fd\u8f6f\u4ef6\u5de5\u7a0bAI4SE\u300b<br \/>\n\u300a\u5d4c\u5165\u5f0f\u9762\u8bd5\u603b\u7ed3\u300b<br \/>\n\u300a\u5d4c\u5165\u5f0f\u5904\u7406\u5668\u67b6\u6784\u89e3\u6790\u300b<br \/>\n\u300a\u5d4c\u5165\u5f0f\u4e0e\u865a\u62df\u5316\u300b<br \/>\n\u300a\u5d4c\u5165\u5f0f\u8f6f\u4ef6\u6d4b\u8bd5\u300b<br \/>\n&#x1f31f; Simplicity is the ultimate sophistication<\/p>\n<p>\u6458\u8981&#xff1a;\u672c\u6587\u662f\u5d4c\u5165\u5f0f\u8f6f\u4ef6\u8986\u76d6\u7387\u6d4b\u8bd5\u7cfb\u5217\u7b2c\u5341\u516d\u7bc7&#xff0c;\u56f4\u7ed5 VectorCAST \u5728\u5d4c\u5165\u5f0f\u76ee\u6807\u673a\u4e0a\u7684\u8986\u76d6\u7387\u5b9e\u6218\u5c55\u5f00\u3002\u6587\u7ae0\u4ece\u5de5\u7a0b\u642d\u5efa\u4e0e\u4ea4\u53c9\u7f16\u8bd1\u94fe\u8def\u8c03\u901a\u8bb2\u8d77&#xff0c;\u5148\u4ee5\u8bed\u53e5\u8986\u76d6\u8d77\u6b65&#xff0c;\u518d\u63a8\u8fdb\u5230\u5206\u652f\u8986\u76d6&#xff0c;\u6700\u7ec8\u6253\u901a MC\/DC&#xff0c;\u5e76\u7ed9\u51fa\u5404\u8986\u76d6\u7b49\u7ea7\u7684\u7528\u4f8b\u8bbe\u8ba1\u65b9\u6cd5\u4e0e\u5224\u5b9a\u4f9d\u636e\u3002\u540c\u65f6\u7ed3\u5408\u63a2\u9488\u6570\u636e\u56de\u8bfb\u5931\u8d25\u3001\u4f18\u5316\u7b49\u7ea7\u5bfc\u81f4\u8986\u76d6\u7387\u5931\u771f\u3001\u4e2d\u65ad\u4e0e\u591a\u4efb\u52a1\u5e76\u53d1\u8def\u5f84\u3001\u8986\u76d6\u7387\u4e0e\u9700\u6c42\u8ffd\u6eaf\u7b49\u5e38\u89c1\u8e29\u5751\u70b9&#xff0c;\u8bf4\u660e\u5982\u4f55\u5728\u8d44\u6e90\u53d7\u9650\u7684\u5d4c\u5165\u5f0f\u73af\u5883\u4e2d\u7a33\u5b9a\u62ff\u5230\u771f\u5b9e\u53ef\u4fe1\u7684\u8986\u76d6\u7387\u6570\u636e\u3002<\/p>\n<h3>\u4e00\u3001\u4e3a\u4ec0\u4e48\u8981\u5728\u5d4c\u5165\u5f0f\u76ee\u6807\u673a\u4e0a\u505a\u8986\u76d6\u7387<\/h3>\n<p>\u8986\u76d6\u7387\u6d4b\u8bd5\u5728\u5bbf\u4e3b\u673a\u4e0a\u8dd1\u5355\u5143\u6d4b\u8bd5\u5e76\u4e0d\u96be&#xff0c;\u96be\u7684\u662f\u628a\u8986\u76d6\u7387\u6570\u636e\u4ece\u771f\u5b9e\u76ee\u6807\u677f\u4e0a\u62ff\u56de\u6765\u3002\u5d4c\u5165\u5f0f\u8f6f\u4ef6\u7684\u7279\u6b8a\u6027\u5728\u4e8e&#xff1a;\u7f16\u8bd1\u5668\u4e0d\u540c\u3001\u8fd0\u884c\u65f6\u5e93\u4e0d\u540c\u3001\u5185\u5b58\u548c Flash \u8d44\u6e90\u7d27\u5f20\u3001\u8c03\u8bd5\u63a5\u53e3\u5e26\u5bbd\u6709\u9650&#xff0c;\u5f88\u591a\u5728 PC \u4e0a\u7406\u6240\u5f53\u7136\u7684\u63d2\u6869\u624b\u6bb5\u5728\u76ee\u6807\u673a\u4e0a\u6839\u672c\u8dd1\u4e0d\u8d77\u6765\u3002<\/p>\n<p>VectorCAST \u7684\u4ef7\u503c\u5728\u4e8e\u5b83\u628a\u300c\u6d4b\u8bd5\u7528\u4f8b\u7ba1\u7406 &#043; \u63d2\u6869 &#043; \u8986\u76d6\u7387\u7edf\u8ba1 &#043; \u62a5\u544a\u751f\u6210\u300d\u4e32\u6210\u4e86\u4e00\u6761\u94fe\u8def&#xff0c;\u5e76\u4e14\u5bf9\u4e3b\u6d41\u5d4c\u5165\u5f0f\u4ea4\u53c9\u7f16\u8bd1\u5de5\u5177\u94fe&#xff08;GCC\u3001IAR\u3001Keil\u3001Tasking\u3001Green Hills \u7b49&#xff09;\u90fd\u6709\u6210\u719f\u7684\u9002\u914d\u6a21\u677f\u3002\u672c\u6587\u4ee5\u4e00\u4e2a\u5178\u578b\u7684 Cortex-M \u88f8\u673a\u5de5\u7a0b\u4e3a\u4f8b&#xff0c;\u6f14\u793a\u5982\u4f55\u4ece\u96f6\u628a\u8986\u76d6\u7387\u6253\u5230 MC\/DC\u3002<\/p>\n<h3>\u4e8c\u3001\u73af\u5883\u51c6\u5907\u4e0e\u5de5\u7a0b\u642d\u5efa<\/h3>\n<h4>2.1 \u5de5\u5177\u4e0e\u7248\u672c<\/h4>\n<ul>\n<li>VectorCAST&#xff1a;VectorCAST\/C&#043;&#043; 2023 \u53ca\u4ee5\u4e0a\u7248\u672c&#xff0c;\u9700\u5305\u542b Embedded \u4e0e Coverage \u6388\u6743\u3002<\/li>\n<li>\u4ea4\u53c9\u7f16\u8bd1\u5668&#xff1a;arm-none-eabi-gcc&#xff08;\u793a\u4f8b&#xff09;&#xff0c;\u5176\u4ed6\u5de5\u5177\u94fe\u914d\u7f6e\u601d\u8def\u4e00\u81f4\u3002<\/li>\n<li>\u8c03\u8bd5\u63a2\u9488&#xff1a;J-Link \/ ST-Link&#xff0c;\u7528\u4e8e\u4e0b\u8f7d\u4e0e\u5728\u7ebf\u8c03\u8bd5\u3002<\/li>\n<li>\u76ee\u6807\u677f&#xff1a;Cortex-M4&#xff0c;Flash 512KB&#xff0c;RAM 128KB&#xff08;\u793a\u4f8b\u914d\u7f6e&#xff09;\u3002<\/li>\n<\/ul>\n<h4>2.2 \u521b\u5efa VectorCAST \u5de5\u7a0b<\/h4>\n<p>\u5728 VectorCAST Manager \u4e2d\u65b0\u5efa\u5de5\u7a0b&#xff0c;\u9009\u62e9 Embedded \u7c7b\u578b&#xff0c;\u6307\u5b9a\u4ea4\u53c9\u7f16\u8bd1\u5668\u8def\u5f84\u4e0e\u76ee\u6807\u673a\u914d\u7f6e\u3002\u5173\u952e\u662f\u628a\u7f16\u8bd1\u3001\u94fe\u63a5\u3001\u4e0b\u8f7d\u3001\u8fd0\u884c\u56db\u4e2a\u73af\u8282\u7684\u547d\u4ee4\u884c\u6a21\u677f\u914d\u7f6e\u6b63\u786e&#xff0c;\u540e\u7eed\u6240\u6709\u8986\u76d6\u7387\u6d4b\u8bd5\u90fd\u4f9d\u8d56\u8fd9\u5957\u6a21\u677f\u3002<\/p>\n<p># \u4ea4\u53c9\u7f16\u8bd1\u5668\u914d\u7f6e\u793a\u4f8b<br \/>\nCC  &#061; arm-none-eabi-gcc<br \/>\nCXX &#061; arm-none-eabi-g&#043;&#043;<br \/>\nSIZE &#061; arm-none-eabi-size<br \/>\nOBJCOPY &#061; arm-none-eabi-objcopy<\/p>\n<h4>2.3 \u5bfc\u5165\u88ab\u6d4b\u5355\u5143<\/h4>\n<p>\u628a\u5f85\u6d4b\u6e90\u6587\u4ef6&#xff08;\u5982 motor_ctrl.c\u3001can_drv.c&#xff09;\u52a0\u5165\u5de5\u7a0b&#xff0c;VectorCAST \u4f1a\u81ea\u52a8\u89e3\u6790\u51fd\u6570\u5217\u8868\u5e76\u751f\u6210\u6d4b\u8bd5\u73af\u5883\u3002\u6b64\u65f6\u5148\u4e0d\u8981\u6025\u7740\u5f00\u8986\u76d6\u7387&#xff0c;\u5148\u786e\u8ba4\u300c\u80fd\u7f16\u8bd1\u3001\u80fd\u4e0b\u8f7d\u3001\u80fd\u8dd1\u901a\u4e00\u4e2a\u7a7a\u7528\u4f8b\u300d&#xff0c;\u8fd9\u662f\u540e\u7eed\u6240\u6709\u5de5\u4f5c\u7684\u5730\u57fa\u3002<\/p>\n<h3>\u4e09\u3001\u4ece\u8bed\u53e5\u8986\u76d6\u8d77\u6b65<\/h3>\n<h4>3.1 \u6253\u5f00\u8bed\u53e5\u8986\u76d6\u63d2\u6869<\/h4>\n<p>\u5728\u73af\u5883\u914d\u7f6e\u4e2d\u542f\u7528 Coverage&#xff0c;\u9009\u62e9 Statement \u7ea7\u522b\u3002VectorCAST \u4f1a\u5728\u7f16\u8bd1\u9636\u6bb5\u5bf9\u76ee\u6807\u6587\u4ef6\u63d2\u5165\u8ba1\u6570\u63a2\u9488&#xff0c;\u63a2\u9488\u6570\u636e\u5728\u8fd0\u884c\u7ed3\u675f\u540e\u901a\u8fc7\u8c03\u8bd5\u63a5\u53e3\u56de\u8bfb\u3002<\/p>\n<p>\/* \u88ab\u6d4b\u51fd\u6570\u793a\u4f8b&#xff1a;\u7535\u673a\u8f6c\u901f\u9650\u5e45 *\/<br \/>\nint motor_limit_speed(int target, int max_speed)<br \/>\n{<br \/>\n    int result &#061; target;<br \/>\n    if (target &gt; max_speed) {<br \/>\n        result &#061; max_speed;<br \/>\n    }<br \/>\n    return result;<br \/>\n}<\/p>\n<h4>3.2 \u7f16\u5199\u6700\u5c0f\u7528\u4f8b\u96c6<\/h4>\n<p>\u8bed\u53e5\u8986\u76d6\u7684\u76ee\u6807\u662f\u8ba9\u6bcf\u6761\u53ef\u6267\u884c\u8bed\u53e5\u81f3\u5c11\u6267\u884c\u4e00\u6b21\u3002\u5bf9\u4e0a\u9762\u7684\u51fd\u6570&#xff0c;\u53ea\u9700\u8981\u4e24\u4e2a\u7528\u4f8b&#xff1a;target &lt;&#061; max_speed \u4e0e target &gt; max_speed&#xff0c;\u5373\u53ef\u8986\u76d6 result &#061; max_speed; \u8fd9\u6761\u8d4b\u503c\u8bed\u53e5\u3002<\/p>\n<table>\n<tr>\u7528\u4f8btargetmax_speed\u671f\u671b\u8fd4\u56de\u503c<\/tr>\n<tbody>\n<tr>\n<td>TC01<\/td>\n<td>100<\/td>\n<td>200<\/td>\n<td>100<\/td>\n<\/tr>\n<tr>\n<td>TC02<\/td>\n<td>300<\/td>\n<td>200<\/td>\n<td>200<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h4>3.3 \u67e5\u770b\u8bed\u53e5\u8986\u76d6\u7ed3\u679c<\/h4>\n<p>\u6267\u884c\u5b8c\u6bd5\u540e&#xff0c;VectorCAST \u4f1a\u5728 Coverage \u89c6\u56fe\u4e2d\u4ee5\u989c\u8272\u6807\u6ce8\u5df2\u6267\u884c\u4e0e\u672a\u6267\u884c\u7684\u8bed\u53e5\u3002\u6b64\u65f6\u901a\u5e38\u80fd\u8f7b\u677e\u8fbe\u5230 90% \u4ee5\u4e0a&#xff0c;\u4f46\u8981\u6ce8\u610f&#xff1a;\u8bed\u53e5\u8986\u76d6\u9ad8\u5e76\u4e0d\u4ee3\u8868\u903b\u8f91\u6b63\u786e&#xff0c;\u77ed\u8def\u6c42\u503c\u3001\u5f02\u5e38\u5206\u652f\u3001\u8fb9\u754c\u6761\u4ef6\u90fd\u53ef\u80fd\u88ab\u63a9\u76d6\u3002<\/p>\n<h3>\u56db\u3001\u63a8\u8fdb\u5230\u5206\u652f\u8986\u76d6<\/h3>\n<p>\u5206\u652f\u8986\u76d6&#xff08;Decision Coverage&#xff09;\u8981\u6c42\u6bcf\u4e2a\u5224\u5b9a\u8868\u8fbe\u5f0f\u7684\u771f\u3001\u5047\u4e24\u4e2a\u65b9\u5411\u90fd\u81f3\u5c11\u8d70\u4e00\u6b21\u3002\u5bf9\u4e8e if (target &gt; max_speed)&#xff0c;TC01 \u8d70\u5047\u5206\u652f\u3001TC02 \u8d70\u771f\u5206\u652f&#xff0c;\u5929\u7136\u6ee1\u8db3\u3002<\/p>\n<p>\u771f\u6b63\u5bb9\u6613\u6f0f\u7684\u662f\u590d\u5408\u6761\u4ef6\u4e0e\u5faa\u73af\u8fb9\u754c\u3002\u4f8b\u5982&#xff1a;<\/p>\n<p>int can_check_frame(const frame_t *f)<br \/>\n{<br \/>\n    if (f !&#061; NULL &amp;&amp; f-&gt;dlc &gt; 0 &amp;&amp; f-&gt;dlc &lt;&#061; 8) {<br \/>\n        return 1;<br \/>\n    }<br \/>\n    return 0;<br \/>\n}<\/p>\n<p>\u5206\u652f\u8986\u76d6\u53ea\u5173\u5fc3\u6574\u4e2a if \u7684\u771f\u5047&#xff0c;\u56e0\u6b64\u4e24\u4e2a\u7528\u4f8b\u5c31\u80fd\u6ee1\u8db3\u3002\u4f46\u6bcf\u4e2a\u5b50\u6761\u4ef6\u7684\u72ec\u7acb\u5f71\u54cd\u5b8c\u5168\u6ca1\u6709\u88ab\u9a8c\u8bc1&#xff0c;\u8fd9\u6b63\u662f MC\/DC \u8981\u89e3\u51b3\u7684\u95ee\u9898\u3002<\/p>\n<h3>\u4e94\u3001\u6253\u901a MC\/DC<\/h3>\n<h4>5.1 MC\/DC \u7684\u5224\u5b9a\u8981\u6c42<\/h4>\n<p>\u4fee\u6b63\u6761\u4ef6\/\u5224\u5b9a\u8986\u76d6&#xff08;MC\/DC&#xff09;\u8981\u6c42&#xff1a;<\/p>\n<li>\u6bcf\u4e2a\u5224\u5b9a\u4e2d\u7684\u6bcf\u4e2a\u6761\u4ef6\u90fd\u81f3\u5c11\u53d6\u771f\u3001\u5047\u5404\u4e00\u6b21&#xff1b;<\/li>\n<li>\u6bcf\u4e2a\u6761\u4ef6\u90fd\u80fd\u72ec\u7acb\u5f71\u54cd\u5224\u5b9a\u7ed3\u679c&#xff0c;\u5373\u5728\u5176\u4ed6\u6761\u4ef6\u4e0d\u53d8\u7684\u524d\u63d0\u4e0b&#xff0c;\u4ec5\u6539\u53d8\u8be5\u6761\u4ef6\u5373\u53ef\u7ffb\u8f6c\u5224\u5b9a\u8f93\u51fa\u3002<\/li>\n<p>\u5bf9 A &amp;&amp; B &amp;&amp; C \u4e09\u4e2a\u6761\u4ef6&#xff0c;\u6700\u5c11\u9700\u8981 4 \u4e2a\u7528\u4f8b&#xff08;N&#043;1 \u539f\u5219&#xff09;\u3002<\/p>\n<h4>5.2 \u8bbe\u8ba1 MC\/DC \u7528\u4f8b<\/h4>\n<table>\n<tr>\u7528\u4f8bfdlcABC\u5224\u5b9a<\/tr>\n<tbody>\n<tr>\n<td>TC11<\/td>\n<td>NULL<\/td>\n<td>&#8211;<\/td>\n<td>F<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>F<\/td>\n<\/tr>\n<tr>\n<td>TC12<\/td>\n<td>\u6709\u6548<\/td>\n<td>0<\/td>\n<td>T<\/td>\n<td>F<\/td>\n<td>&#8211;<\/td>\n<td>F<\/td>\n<\/tr>\n<tr>\n<td>TC13<\/td>\n<td>\u6709\u6548<\/td>\n<td>9<\/td>\n<td>T<\/td>\n<td>T<\/td>\n<td>F<\/td>\n<td>F<\/td>\n<\/tr>\n<tr>\n<td>TC14<\/td>\n<td>\u6709\u6548<\/td>\n<td>8<\/td>\n<td>T<\/td>\n<td>T<\/td>\n<td>T<\/td>\n<td>T<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u9010\u6761\u9a8c\u8bc1\u72ec\u7acb\u6027&#xff1a;TC11 \u4e0e TC12 \u5bf9\u6bd4&#xff0c;\u4ec5 A \u53d8\u5316\u5373\u7ffb\u8f6c\u7ed3\u679c&#xff1b;TC12 \u4e0e TC13 \u5bf9\u6bd4&#xff0c;\u4ec5 B \u53d8\u5316\u5373\u7ffb\u8f6c&#xff1b;TC13 \u4e0e TC14 \u5bf9\u6bd4&#xff0c;\u4ec5 C \u53d8\u5316\u5373\u7ffb\u8f6c\u3002\u6ee1\u8db3 MC\/DC\u3002<\/p>\n<h4>5.3 \u5728 VectorCAST \u4e2d\u542f\u7528 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