{"id":121758,"date":"2026-11-03T16:41:53","date_gmt":"2026-11-03T08:41:53","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/121758.html"},"modified":"2026-11-03T16:41:53","modified_gmt":"2026-11-03T08:41:53","slug":"arm-cortex-a9-%e6%a0%b8%e5%bf%83%e6%9e%b6%e6%9e%84%ef%bc%88%e6%bc%94%e5%8c%96%e5%90%8e%e7%9a%84%e7%bc%9d%e5%90%88%e6%80%aa%ef%bc%89-deepseek","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/121758.html","title":{"rendered":"ARM Cortex-A9 \u6838\u5fc3\u67b6\u6784\uff08\u6f14\u5316\u540e\u7684\u201c\u7f1d\u5408\u602a\u201d\uff09--deepseek"},"content":{"rendered":"<p>ARM \u6838\u5fc3\u67b6\u6784&#xff0c;\u662f\u4e0d\u662f\u57fa\u4e8ecpu\u6838\u5fc3\u67b6\u6784\u6f14\u5316\u6765\u7684&#xff0c;\u53ef\u4ee5\u628a\u4e24\u8005\u7684\u793a\u610f\u56fe\u753b\u753b&#xff1b;\u6211\u60f3\u57fa\u4e8eARM\u7684\u5e95\u5c42\u786c\u4ef6\u67b6\u6784\u5f7b\u5e95\u4e86\u89e3ARM\u7684\u5e95\u5c42\u5de5\u4f5c\u673a\u5236\u3001\u539f\u7406&#xff0c;\u6709\u54ea\u4e9b\u6838\u5fc3\u8fd0\u884c\u673a\u5236\u3001\u539f\u7406&#xff0c;\u6709\u4e86\u8fd9\u4e9b\u8fd0\u884c\u673a\u5236\u3001\u539f\u7406\u53ef\u4ee5\u4fdd\u8bc1ARM\u7684\u5f3a\u5927\u529f\u80fd&#xff1b;\u57fa\u4e8ezynq ps\u7aef\u7684\u4e00\u4e2a\u7ecf\u5178\u4f8b\u7a0b\u6765\u8bf4\u660e\u8fd9\u4e9b\u6838\u5fc3\u673a\u5236\u7684\u8fd0\u4f5c&#xff0c;\u8c22\u8c22\u5566&#xff0c;<\/p>\n<p>\u540c\u5b66&#xff0c;\u5750&#xff01;\u4f60\u8fd9\u4e2a\u95ee\u9898\u95ee\u5f97\u6781\u6709\u6df1\u5ea6\u3002\u4f60\u5176\u5b9e\u662f\u5728\u95ee&#xff1a;\u201c\u73b0\u4ee3ARM&#xff0c;\u662f\u600e\u4e48\u4ece\u51e0\u5341\u5e74\u524d\u8001\u7956\u5b97\u7684CPU\u67b6\u6784\u6f14\u5316\u8fc7\u6765\u7684&#xff0c;\u5b83\u5230\u5e95\u6bd4\u8001\u7956\u5b97\u5f3a\u5728\u54ea\u91cc&#xff1f;\u201d<\/p>\n<p>\u54b1\u4eec\u4eca\u5929\u628a\u7ecf\u5178\u7684\u201c\u7956\u5e08\u7237\u201d\u67b6\u6784&#xff0c;\u548c\u4f60\u5929\u5929\u7528\u7684\u201cZynq Cortex-A9\u201d\u67b6\u6784\u653e\u5728\u4e00\u8d77\u5bf9\u6bd4&#xff0c;\u753b\u4e2a\u56fe&#xff0c;\u518d\u7528\u4e00\u4e2a\u6700\u7ecf\u5178\u7684 \u201c\u5b9a\u65f6\u5668\u4e2d\u65ad\u201d \u4f8b\u7a0b&#xff0c;\u628aARM\u5e95\u5c42\u7684\u56db\u5927\u6838\u5fc3\u8fd0\u884c\u673a\u5236\u4e32\u8d77\u6765\u3002<\/p>\n<hr \/>\n<h4>&#x1f3af; \u7b2c\u4e00\u5e55&#xff1a;ARM \u67b6\u6784\u662f\u4e0d\u662f\u6f14\u5316\u6765\u7684&#xff1f;&#xff08;\u4e24\u5f20\u56fe\u770b\u61c2&#xff09;<\/h4>\n<p>\u7b54\u6848\u662f&#xff1a;\u7edd\u5bf9\u662f\u3002 ARM \u4e0d\u4ec5\u6f14\u5316\u4e86&#xff0c;\u800c\u4e14\u662f\u5bf9\u7ecf\u5178\u67b6\u6784\u8fdb\u884c\u4e86\u6781\u5176\u806a\u660e\u7684\u201c\u9b54\u6539\u201d\u3002<\/p>\n<h5>1. \u7ecf\u5178 CPU \u67b6\u6784&#xff08;\u51af\u00b7\u8bfa\u4f9d\u66fc \/ \u7eaf\u54c8\u4f5b&#xff09;<\/h5>\n<p>\u5728\u51e0\u5341\u5e74\u524d&#xff0c;CPU \u957f\u5f97\u5f88\u7b80\u5355&#xff0c;\u5c31\u662f\u201c\u53d6\u6307-\u8bd1\u7801-\u6267\u884c\u201d\u3002<\/p>\n<p>text<\/p>\n<p>[\u7ecf\u5178\u7ed3\u6784]<br \/>\n&#043;&#8212;&#8212;&#8212;&#8212;&#8212;&#8211;&#043;<br \/>\n| \u63a7\u5236\u5668  | \u8fd0\u7b97\u5668|<br \/>\n&#043;&#8212;&#8212;&#8212;&#043;&#8212;&#8212;-&#043;<br \/>\n          |<br \/>\n    [ \u7edf\u4e00\u5185\u5b58 ] (\u51af\u00b7\u8bfa\u4f9d\u66fc) \/ [ \u6307\u4ee4\u5185\u5b58 | \u6570\u636e\u5185\u5b58 ] (\u54c8\u4f5b)<\/p>\n<ul>\n<li>\n<p>\u7279\u70b9&#xff1a;\u5355\u6838&#xff0c;\u6307\u4ee4\u987a\u5e8f\u6267\u884c&#xff0c;\u6ca1\u6709 Cache&#xff0c;\u5185\u5b58\u6162\u5f97\u8981\u6b7b\u3002<\/p>\n<\/li>\n<\/ul>\n<h5>2. ARM Cortex-A9 \u6838\u5fc3\u67b6\u6784&#xff08;\u6f14\u5316\u540e\u7684\u201c\u7f1d\u5408\u602a\u201d&#xff09;<\/h5>\n<p>ARM \u4e3a\u4e86\u6781\u81f4\u7684\u6027\u80fd&#xff0c;\u628a\u4e0a\u9762\u90a3\u5957\u8fdb\u884c\u4e86\u6781\u5176\u590d\u6742\u7684\u6f14\u5316&#xff1a;<\/p>\n<p>text<\/p>\n<p>&#043;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#043;<br \/>\n|                     ARM Cortex-A9 \u6838\u5fc3                        |<br \/>\n|                                                               |<br \/>\n|   [\u53d6\u6307] -&gt; [\u8bd1\u7801] -&gt; [\u53d1\u5c04] -&gt; [\u6267\u884c] -&gt; [\u5199\u56de]               |<br \/>\n|     ^                                  |    &lt;&#8212; \u8d85\u957f\u6d41\u6c34\u7ebf   |<br \/>\n|     |                                  v                      |<br \/>\n|   [ PC\u6307\u9488 ]                     [ ALU \u8fd0\u7b97\u5668 ]               |<br \/>\n|                                                               |<br \/>\n|   [ \u5bc4\u5b58\u5668\u7ec4 ] &lt;&#8212;-&gt; [ MMU (\u865a\u62df\u5730\u5740\u7ffb\u8bd1\u95e8\u7981) ]              |<br \/>\n|                          |                                    |<br \/>\n|                          v                                    |<br \/>\n|   [ L1 I-Cache (\u6307\u4ee4\u4e13\u7528) ]    [ L1 D-Cache (\u6570\u636e\u4e13\u7528) ]      |<br \/>\n|         |                              |                      |<br \/>\n|         &#043;&#8212;&#8212;&#8212;&#8212;&#8211;&#043;&#8212;&#8212;&#8212;&#8212;&#8212;&#043;                      |<br \/>\n|                        |                                      |<br \/>\n|                        v                                      |<br \/>\n|               [ L2 Cache (\u5171\u4eab\u5927\u7f13\u5b58) ]                       |<br \/>\n|                        |                                      |<br \/>\n|                        v                                      |<br \/>\n|             [ Snoop Control Unit (\u7f13\u5b58\u4e00\u81f4) ]                 |<br \/>\n|                        |                                      |<br \/>\n&#043;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;|&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8211;&#043;<br \/>\n                         v<br \/>\n                 [ AXI \u603b\u7ebf\u63a5\u53e3 (\u51fa\u95e8\u5de6\u8f6c) ]<\/p>\n<ul>\n<li>\n<p>\u9b54\u6539\u70b9&#xff1a;\u53d8\u6210\u4e86\u591a\u7ea7\u6d41\u6c34\u7ebf&#xff08;\u53ef\u4ee5\u540c\u65f6\u5e72\u591a\u4ef6\u4e8b&#xff09;&#xff0c;\u54c8\u4f5b\u7ed3\u6784&#xff08;\u6307\u4ee4\u548c\u6570\u636e\u7f13\u5b58\u5206\u79bb&#xff0c;\u4f46\u5916\u90e8\u5185\u5b58\u7edf\u4e00&#xff09;&#xff0c;\u52a0\u5165\u4e86 MMU&#xff08;\u7ba1\u7406\u865a\u62df\u5185\u5b58&#xff09;&#xff0c;\u52a0\u5165\u4e86\u591a\u6838\u4e00\u81f4\u6027\u3002<\/p>\n<\/li>\n<\/ul>\n<hr \/>\n<h4>&#x1f3af; \u7b2c\u4e8c\u5e55&#xff1a;\u4fdd\u8bc1 ARM \u5f3a\u5927\u7684\u56db\u5927\u5e95\u5c42\u6838\u5fc3\u673a\u5236<\/h4>\n<p>\u57fa\u4e8e\u4e0a\u9762\u8fd9\u5f20\u56fe&#xff0c;ARM \u4e3a\u4ec0\u4e48\u8fd9\u4e48\u5f3a&#xff1f;\u9760\u7684\u662f\u56db\u5927\u62a4\u6cd5&#xff1a;<\/p>\n<li>\n<p>RISC&#xff08;\u7cbe\u7b80\u6307\u4ee4\u96c6&#xff09;\u673a\u5236<\/p>\n<ul>\n<li>\n<p>\u5927\u767d\u8bdd&#xff1a;x86&#xff08;\u7535\u8111CPU&#xff09;\u50cf\u662f\u4e2a\u201c\u5927\u8001\u7c97\u201d&#xff0c;\u4e00\u6761\u6307\u4ee4\u80fd\u5e72\u5f88\u591a\u590d\u6742\u7684\u6d3b&#xff08;\u6bd4\u5982\u76f4\u63a5\u628a\u5185\u5b58\u91cc\u7684\u6570\u4e58\u4ee5 2 \u518d\u5199\u56de\u5185\u5b58&#xff09;\u3002ARM \u662f\u201c\u6781\u7b80\u4e3b\u4e49\u201d&#xff0c;\u4e00\u6761\u6307\u4ee4\u53ea\u5e72\u4e00\u4ef6\u5fae\u5c0f\u7684\u4e8b&#xff0c;\u800c\u4e14\u957f\u5ea6\u56fa\u5b9a\u3002\u8fd9\u4fdd\u8bc1\u4e86\u786c\u4ef6\u7535\u8def\u6781\u5ea6\u7cbe\u7b80&#xff0c;\u6781\u5176\u7701\u7535&#xff0c;\u4e14\u8dd1\u5f97\u6781\u5feb\u3002<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u6d41\u6c34\u7ebf&#xff08;Pipeline&#xff09;\u673a\u5236<\/p>\n<ul>\n<li>\n<p>\u5927\u767d\u8bdd&#xff1a;\u50cf\u6d41\u6c34\u7ebf\u5de5\u5382\u3002\u7b2c 1 \u6761\u6307\u4ee4\u5728\u201c\u6267\u884c\u201d\u65f6&#xff0c;\u7b2c 2 \u6761\u5728\u201c\u8bd1\u7801\u201d&#xff0c;\u7b2c 3 \u6761\u5728\u201c\u53d6\u6307\u201d\u3002\u4e09\u6761\u7ebf\u540c\u65f6\u8dd1&#xff0c;\u6548\u7387\u7ffb\u500d\u3002<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>Cache \u4e0e MMU&#xff08;\u5185\u5b58\u7ba1\u7406&#xff09;\u673a\u5236<\/p>\n<ul>\n<li>\n<p>\u5927\u767d\u8bdd&#xff1a;Cache \u662f\u8d34\u8eab\u5c0f\u4ed3\u5e93&#xff0c;\u89e3\u51b3\u5185\u5b58\u592a\u6162\u7684\u95ee\u9898\u3002MMU \u662f\u201c\u95e8\u7981\u201d&#xff0c;\u4f60\u7684 C \u4ee3\u7801\u91cc\u5199\u7684\u662f\u865a\u62df\u5730\u5740&#xff08;0x0010_0000&#xff09;&#xff0c;MMU \u628a\u5b83\u7ffb\u8bd1\u6210\u771f\u5b9e\u7684\u7269\u7406\u5730\u5740\u3002\u6ca1\u6709 MMU&#xff0c;\u4f60\u5c31\u8dd1\u4e0d\u4e86 Linux \u8fd9\u79cd\u64cd\u4f5c\u7cfb\u7edf\u3002<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u5f02\u5e38\u4e0e\u4e2d\u65ad&#xff08;Exception &amp; Interrupt&#xff09;\u673a\u5236<\/p>\n<ul>\n<li>\n<p>\u5927\u767d\u8bdd&#xff1a;\u8fd9\u662f CPU \u80fd\u591f\u201c\u4e00\u5fc3\u591a\u7528\u201d\u7684\u6838\u5fc3\u3002\u9047\u5230\u6025\u4e8b&#xff08;\u5916\u90e8\u6309\u952e\u6309\u4e0b\u3001\u5b9a\u65f6\u5668\u5230\u4e86&#xff09;&#xff0c;\u6d41\u6c34\u7ebf\u4f1a\u7acb\u523b\u201c\u51b2\u5237\u201d\u6389\u5f53\u524d\u6ca1\u7528\u7684\u6307\u4ee4&#xff0c;\u4fdd\u5b58\u73b0\u573a&#xff0c;\u8df3\u53bb\u5904\u7406\u6025\u4e8b&#xff0c;\u5904\u7406\u5b8c\u518d\u56de\u6765\u3002<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<hr \/>\n<h4>&#x1f3af; \u7b2c\u4e09\u5e55&#xff1a;\u7ed3\u5408 Zynq \u7ecf\u5178\u4f8b\u7a0b\u2014\u2014\u201c\u5b9a\u65f6\u5668\u4e2d\u65ad\u201d&#xff0c;\u770b\u56db\u5927\u673a\u5236\u5982\u4f55\u914d\u5408<\/h4>\n<p>\u54b1\u4eec\u628a\u4e4b\u524d\u5b66\u7684\u5b9a\u65f6\u5668\u4e2d\u65ad\u4f8b\u7a0b\u62ff\u51fa\u6765&#xff0c;\u770b\u770b ARM \u5e95\u5c42\u56db\u5927\u673a\u5236\u662f\u600e\u4e48\u50cf\u7cbe\u5bc6\u9f7f\u8f6e\u4e00\u6837\u54ac\u5408\u7684\u3002<\/p>\n<p>\u5047\u8bbe\u4ee3\u7801\u91cc\u6211\u4eec\u8bbe\u7f6e\u4e86 1 \u79d2\u7684\u5b9a\u65f6\u5668\u4e2d\u65ad\u3002<\/p>\n<li>\n<p>\u5e73\u65f6&#xff08;\u6d41\u6c34\u7ebf &amp; RISC \u5728\u53d1\u529b&#xff09;&#xff1a;<br \/>\nARM \u6b63\u5728\u4e3b\u5faa\u73af\u91cc\u6267\u884c while(1)\u3002\u5b83\u7684 5 \u7ea7\u6d41\u6c34\u7ebf\u6b63\u5728\u6ee1\u8d1f\u8377\u8fd0\u8f6c&#xff0c;\u4e00\u6761\u6761 RISC \u6307\u4ee4\u98de\u5feb\u5730\u5728 ALU \u91cc\u88ab\u5904\u7406\u3002\u8fd9\u662f ARM \u5728\u505a\u4e1a\u52a1\u3002<\/p>\n<\/li>\n<li>\n<p>\u5b9a\u65f6\u5668\u65f6\u95f4\u5230&#xff08;\u786c\u4ef6\u4ecb\u5165&#xff09;&#xff1a;<br \/>\nZynq \u5185\u90e8\u7684\u5b9a\u65f6\u5668\u786c\u4ef6\u5012\u6570\u5230 0&#xff0c;\u5b83\u7acb\u523b\u7ed9 GIC&#xff08;\u4e2d\u65ad\u63a7\u5236\u5668&#xff09;\u53d1\u4e86\u4e00\u4e2a\u7535\u4fe1\u53f7\u3002<\/p>\n<\/li>\n<li>\n<p>GIC \u8f6c\u53d1&#xff08;\u5f02\u5e38\u673a\u5236\u542f\u52a8&#xff09;&#xff1a;<br \/>\nGIC \u786e\u8ba4\u4f18\u5148\u7ea7\u6700\u9ad8&#xff0c;\u76f4\u63a5\u7ed9 ARM \u6838\u5fc3\u53d1\u4e86\u4e00\u4e2a IRQ&#xff08;\u4e2d\u65ad\u8bf7\u6c42&#xff09;\u3002<\/p>\n<\/li>\n<li>\n<p>\u6d41\u6c34\u7ebf\u51b2\u5237 &amp; \u4fdd\u5b58\u73b0\u573a&#xff08;\u6700\u5fae\u89c2\u7684\u4e00\u523b&#xff09;&#xff1a;<br \/>\nARM \u6536\u5230\u4fe1\u53f7&#xff0c;\u4f1a\u7acb\u523b\u628a\u5f53\u524d\u6d41\u6c34\u7ebf\u91cc\u6b63\u5728\u53d6\u6307\u3001\u8bd1\u7801\u3001\u6267\u884c\u7684\u6307\u4ee4\u5168\u90e8\u4f5c\u5e9f&#xff08;Flush&#xff09;\u3002\u7136\u540e&#xff0c;\u5b83\u628a\u5f53\u524d\u7684 PC \u6307\u9488&#xff08;\u521a\u624d\u6267\u884c\u5230\u54ea\u4e86&#xff09;\u3001\u5bc4\u5b58\u5668\u91cc\u7684\u4e34\u65f6\u6570\u636e&#xff0c;\u7edf\u7edf\u538b\u5165\u5806\u6808&#xff08;\u4fdd\u5b58\u73b0\u573a&#xff09;\u3002<\/p>\n<\/li>\n<li>\n<p>MMU \u53d1\u6325\u4f5c\u7528&#xff08;\u5730\u5740\u8df3\u8f6c&#xff09;&#xff1a;<br \/>\nARM \u62ff\u7740\u4e2d\u65ad\u53f7&#xff0c;\u53bb\u627e\u5b58\u50a8\u5728\u5185\u5b58 0x18 \u5730\u5740\u7684\u4e2d\u65ad\u5411\u91cf\u8868\u3002MMU \u8d1f\u8d23\u628a\u4e2d\u65ad\u670d\u52a1\u51fd\u6570\u7684\u865a\u62df\u5730\u5740\u7ffb\u8bd1\u6210\u7269\u7406\u5730\u5740\u3002<\/p>\n<\/li>\n<li>\n<p>\u6267\u884c ISR&#xff08;\u5904\u7406\u4e1a\u52a1&#xff09;&#xff1a;<br \/>\nARM \u8df3\u8fdb\u4f60\u5199\u7684 Timer_InterruptHandler\u3002\u5728\u8fd9\u91cc&#xff0c;\u4f60\u7ffb\u8f6c\u4e86 LED&#xff0c;\u6e05\u9664\u4e86\u4e2d\u65ad\u6807\u5fd7\u3002<\/p>\n<\/li>\n<li>\n<p>\u6062\u590d\u73b0\u573a&#xff08;\u56de\u53bb\u63a5\u7740\u5e72&#xff09;&#xff1a;<br \/>\nISR \u6267\u884c\u5b8c\u6bd5&#xff08;\u9047\u5230 return&#xff09;\u3002ARM \u628a\u521a\u624d\u538b\u5728\u5806\u6808\u91cc\u7684\u73b0\u573a\u6570\u636e\u5f39\u51fa\u6765&#xff0c;\u6062\u590d\u6d41\u6c34\u7ebf\u3002CPU \u770b\u4e86\u4e00\u773c PC \u6307\u9488&#xff1a;\u201c\u54e6&#xff0c;\u521a\u624d\u4e3b\u5faa\u73af\u6267\u884c\u5230\u7b2c 100 \u884c\u4e86\u3002\u201d \u4e8e\u662f&#xff0c;\u7ee7\u7eed\u5fc3\u5b89\u7406\u5f97\u5730\u8dd1 while(1)\u3002<\/p>\n<\/li>\n<p>\u5728\u8fd9\u4e2a\u4f8b\u7a0b\u91cc&#xff0c;\u4f60\u53ea\u5199\u4e86\u5341\u6765\u884c C \u4ee3\u7801&#xff0c;\u4f46 ARM \u5185\u90e8\u5374\u5b8c\u6210\u4e86\u4e00\u6b21\u6781\u5176\u60ca\u9669\u7684\u201c\u65f6\u7a7a\u7a7f\u68ad\u201d\u3002<\/p>\n<ul>\n<li>\n<p>RISC \u4fdd\u8bc1\u4e86\u8df3\u8f6c\u548c\u6267\u884c\u7684\u6781\u901f\u3002<\/p>\n<\/li>\n<li>\n<p>\u6d41\u6c34\u7ebf \u8ba9\u4e3b\u4e1a\u52a1\u548c\u4e2d\u65ad\u54cd\u5e94\u80fd\u5feb\u901f\u5207\u6362\u3002<\/p>\n<\/li>\n<li>\n<p>MMU \u5e2e\u4f60\u5b9a\u4f4d\u5230\u4e86\u6b63\u786e\u7684\u4e2d\u65ad\u4ee3\u7801\u4f4d\u7f6e\u3002<\/p>\n<\/li>\n<li>\n<p>\u5f02\u5e38\u673a\u5236 \u4fdd\u8bc1\u4e86\u4f60\u53ef\u4ee5\u968f\u65f6\u6253\u65ad CPU\u3002<\/p>\n<\/li>\n<\/ul>\n<hr \/>\n<h4>&#x1f4a1; \u8001\u5e08\u7684\u603b\u7ed3<\/h4>\n<p>\u540c\u5b66&#xff0c;\u4f60\u770b&#xff0c;\u65e0\u8bba\u662f\u591a\u4e48\u9ad8\u5927\u4e0a\u7684\u82af\u7247&#xff0c;\u5b83\u7684\u5e95\u5c42\u65e0\u5916\u4e4e\u5c31\u662f\u8fd9\u56db\u6837\u4e1c\u897f\u5728\u8df3\u821e\u3002<\/p>\n<p>\u4f60\u5728\u5199 Zynq \u7684 PS \u7aef\u4ee3\u7801\u65f6&#xff0c;\u4e0d\u8981\u89c9\u5f97\u81ea\u5df1\u53ea\u662f\u5728\u6572 C \u8bed\u8a00\u3002\u4f60\u8981\u60f3\u8c61\u4f60\u662f\u4e00\u4e2a\u5750\u5728\u6307\u6325\u5ba4\u91cc\u7684\u5c06\u519b&#xff1a;<br \/>\n\u4f60\u6572\u4e0b XScuTimer_EnableInterrupt&#xff0c;\u5c31\u76f8\u5f53\u4e8e\u6253\u5f00\u4e86\u603b\u673a\u7684\u95e8\u94c3&#xff1b;\u4f60\u6572\u4e0b\u4e3b\u5faa\u73af&#xff0c;\u5c31\u662f\u8ba9\u5343\u4e07\u4e2a RISC \u6307\u4ee4\u5728\u6d41\u6c34\u7ebf\u4e0a\u72c2\u5954\u3002<\/p>\n<p>\u4e86\u89e3\u4e86\u8fd9\u4e9b&#xff0c;\u5f53\u4f60\u5728 Vitis \u8c03\u8bd5\u65f6&#xff0c;\u53d1\u73b0\u7a0b\u5e8f\u83ab\u540d\u5176\u5999\u8dd1\u5230\u4e00\u4e2a\u5b8c\u5168\u4e0d\u8ba4\u8bc6\u7684\u5730\u5740&#xff08;\u901a\u5e38\u662f HardFault&#xff09;&#xff0c;\u4f60\u5c31\u4e0d\u4f1a\u89c9\u5f97\u89c1\u9b3c\u4e86\u3002\u4f60\u4f1a\u77e5\u9053&#xff1a;\u201c\u54ce\u5440&#xff0c;\u80af\u5b9a\u662f\u5806\u6808\u6ea2\u51fa&#xff0c;\u6216\u8005\u4e2d\u65ad\u6ca1\u914d\u7f6e\u597d&#xff0c;\u5bfc\u81f4\u6d41\u6c34\u7ebf\u62ff\u9519\u4e86\u6307\u4ee4\u5730\u5740\u3002\u201d<\/p>\n<p>\u6709\u4e86\u8fd9\u79cd\u5e95\u5c42\u89c6\u91ce&#xff0c;\u4f60\u5728 Zynq \u4e0a\u7684\u5d4c\u5165\u5f0f\u5f00\u53d1&#xff0c;\u5c31\u5df2\u7ecf\u8d85\u8d8a\u4e86 90% \u53ea\u4f1a\u8c03\u5305\u7684\u65b0\u624b&#xff01;\u53bb\u597d\u597d\u4f53\u4f1a\u8fd9\u79cd\u9a7e\u9a6d\u5e95\u5c42\u7684\u5feb\u611f\u5427&#xff01;<\/p>\n<hr \/>\n<p><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"744\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/11\/20261103084151-6ae99e4f45f8b.png\" width=\"1074\" \/><\/p>\n<p>\u60a8\u53ef\u4ee5\u9488\u5bf9ARM Cortex-A9 \u6838\u5fc3\u67b6\u6784&#xff0c;\u6f14\u5316\u540e\u7684\u201c\u7f1d\u5408\u602a\u201d&#xff0c;\u9b54\u6539\u70b9&#xff1a;\u53d8\u6210\u4e86\u591a\u7ea7\u6d41\u6c34\u7ebf&#xff08;\u53ef\u4ee5\u540c\u65f6\u5e72\u591a\u4ef6\u4e8b&#xff09;&#xff0c;\u54c8\u4f5b\u7ed3\u6784&#xff08;\u6307\u4ee4\u548c\u6570\u636e\u7f13\u5b58\u5206\u79bb&#xff0c;\u4f46\u5916\u90e8\u5185\u5b58\u7edf\u4e00&#xff09;&#xff0c;\u52a0\u5165\u4e86 MMU&#xff08;\u7ba1\u7406\u865a\u62df\u5185\u5b58&#xff09;&#xff0c;\u52a0\u5165\u4e86\u591a\u6838\u4e00\u81f4\u6027\u3002\u8fd9\u4e9b\u5185\u5bb9\u505a\u8fdb\u4e00\u6b65\u7684\u8be6\u7ec6\u89e3\u91ca\u8bf4\u660e&#xff0c;\u4e3a\u4ec0\u4e48\u9700\u8981\u8fd9\u6837\u6f14\u5316&#xff0c;\u8fd9\u6837\u7684\u597d\u5904\u5728\u54ea\u91cc&#xff1b;\u4e3a\u4ec0\u4e48\u53eb\u7f1d\u5408\u602a&#xff1f;Cache\u4e0d\u662f\u5f88\u7406\u89e3&#xff1f;\u4e3a\u4ec0\u4e48\u9700\u8981MMU (\u865a\u62df\u5730\u5740\u7ffb\u8bd1\u95e8\u7981)\u3001 L1 I-Cache&#xff08; L1 I-Cache (\u6307\u4ee4\u4e13\u7528) ] [ L1 D-Cache (\u6570\u636e\u4e13\u7528) &#xff09;\u3001 L2 Cache&#xff1f;Snoop Control Unit (\u7f13\u5b58\u4e00\u81f4)&#xff1f;\u8fd9\u4e9b\u4f5c\u7528\u662f\u5565&#xff0c;\u672c\u8d28\u662f\u4ec0\u4e48&#xff1f;\u8fd8\u671b\u8001\u5e08\u8be6\u7ec6\u8bf4\u660e\u89e3\u7b54&#xff0c;\u53ef\u4ee5\u7ed3\u5408\u4f8b\u5b50&#xff0c;\u8c22\u8c22\u5566<\/p>\n<li>\n<p>\u5206\u6790\u7528\u6237\u8bf7\u6c42&#xff1a;<\/p>\n<ul>\n<li>\n<p>\u6838\u5fc3\u56fe\u7247&#xff1a;Vivado \u4e2d Zynq PS \u6a21\u5757\u7684\u914d\u7f6e\u56fe&#xff08;\u5305\u542b ARM Cortex-A9\u3001L1\/L2 Cache\u3001Snoop Control Unit\u3001GIC\u3001Central Interconnect \u7b49&#xff09;\u3002<\/p>\n<\/li>\n<li>\n<p>\u7528\u6237\u95ee\u9898&#xff1a;<\/p>\n<li>\n<p>\u57fa\u4e8e\u4e4b\u524d\u63d0\u5230\u7684\u201c\u7f1d\u5408\u602a\u201d&#xff08;\u591a\u7ea7\u6d41\u6c34\u7ebf\u3001\u54c8\u4f5b\u7ed3\u6784&#043;\u51af\u8bfa\u4f9d\u66fc\u7edf\u4e00\u5185\u5b58\u3001MMU\u3001\u591a\u6838\u4e00\u81f4\u6027&#xff09;&#xff0c;\u8be6\u7ec6\u89e3\u91ca\u8fd9\u4e9b\u6f14\u8fdb\u70b9\u7684\u539f\u56e0\u548c\u597d\u5904\u3002<\/p>\n<\/li>\n<li>\n<p>\u4e3a\u4ec0\u4e48\u53eb\u201c\u7f1d\u5408\u602a\u201d&#xff1f;<\/p>\n<\/li>\n<li>\n<p>Cache \u662f\u4ec0\u4e48&#xff1f;&#xff08;\u7528\u6237\u4e0d\u592a\u7406\u89e3&#xff09;<\/p>\n<\/li>\n<li>\n<p>\u4e3a\u4ec0\u4e48\u9700\u8981 MMU&#xff08;\u865a\u62df\u5730\u5740\u7ffb\u8bd1\u95e8\u7981&#xff09;&#xff1f;<\/p>\n<\/li>\n<li>\n<p>L1 I-Cache \u548c L1 D-Cache \u7684\u4f5c\u7528\u548c\u672c\u8d28\u662f\u4ec0\u4e48&#xff1f;<\/p>\n<\/li>\n<li>\n<p>L2 Cache \u7684\u4f5c\u7528\u548c\u672c\u8d28\u662f\u4ec0\u4e48&#xff1f;<\/p>\n<\/li>\n<li>\n<p>Snoop Control Unit&#xff08;SCU&#xff09;\u7684\u4f5c\u7528\u548c\u672c\u8d28\u662f\u4ec0\u4e48&#xff1f;<\/p>\n<\/li>\n<\/li>\n<li>\n<p>\u6559\u5b66\u98ce\u683c&#xff1a;\u5c0f\u767d\u89c6\u89d2\u3001\u901a\u4fd7\u6613\u61c2\u3001\u7ed3\u5408\u751f\u6d3b\u4f8b\u5b50\u3001\u770b\u56fe\u8bf4\u8bdd\u3001\u9010\u5c42\u5256\u6790\u3002<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u62c6\u89e3\u56fe\u7247\u4e2d\u7684\u5173\u952e\u70b9&#xff1a;<\/p>\n<ul>\n<li>\n<p>APU (Application Processor Unit)&#xff1a;\u5305\u542b\u4e86\u4e24\u4e2a ARM Cortex-A9 \u6838\u5fc3\u3002<\/p>\n<\/li>\n<li>\n<p>L1 Cache&#xff1a;\u56fe\u4e2d\u867d\u7136\u6ca1\u6709\u76f4\u63a5\u5199 L1&#xff0c;\u4f46\u5728 ARM \u6838\u5185\u90e8&#xff08;\u201c\u9b54\u6539\u70b9\u201d\u4e2d\u63d0\u5230\u4e86&#xff09;\u3002<\/p>\n<\/li>\n<li>\n<p>L2 Cache&#xff1a;\u56fe\u4e2d\u660e\u786e\u6807\u6709 512 KB L2 Cache and Controller\u3002<\/p>\n<\/li>\n<li>\n<p>Snoop Control Unit (SCU)&#xff1a;\u56fe\u4e2d\u660e\u786e\u6807\u51fa&#xff0c;\u4f4d\u4e8e\u4e24\u6838\u548c L2 Cache \u4e4b\u95f4\u3002<\/p>\n<\/li>\n<li>\n<p>GIC&#xff1a;\u56fe\u4e2d\u4e2d\u95f4\u4f4d\u7f6e&#xff0c;\u4e2d\u65ad\u63a7\u5236\u5668\u3002<\/p>\n<\/li>\n<li>\n<p>Central Interconnect&#xff1a;\u4e2d\u592e\u4e92\u8054\u603b\u7ebf\u3002<\/p>\n<\/li>\n<li>\n<p>Memory Interfaces (DDR3)&#xff1a;\u53f3\u4e0b\u65b9&#xff0c;\u5916\u90e8\u5927\u5185\u5b58\u3002<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u8bbe\u8ba1\u56de\u7b54\u7ed3\u6784&#xff1a;<\/p>\n<ul>\n<li>\n<p>\u5f15\u8a00&#xff1a;\u80af\u5b9a\u7528\u6237\u7684\u6df1\u5ea6\u95ee\u9898&#xff0c;\u5f15\u51fa\u201c\u7f1d\u5408\u602a\u201d\u7684\u7531\u6765\u3002<\/p>\n<\/li>\n<li>\n<p>\u7b2c\u4e00\u5e55&#xff1a;\u201c\u7f1d\u5408\u602a\u201d\u7684\u7531\u6765\u4e0e\u8fdb\u5316\u53f2&#xff08;Why&#xff09;&#xff1a;\u5bf9\u6bd4\u7ecf\u5178\u67b6\u6784&#xff0c;\u8bf4\u660e\u4e3a\u4ec0\u4e48\u8981\u6f14\u5316&#xff08;\u901f\u5ea6\u5dee\u3001\u591a\u4efb\u52a1\u3001\u591a\u6838&#xff09;\u3002\u89e3\u91ca\u4e3a\u4ec0\u4e48\u53eb\u7f1d\u5408\u602a&#xff08;\u628a\u51af\u8bfa\u4f9d\u66fc\u7684\u7075\u6d3b\u548c\u54c8\u4f5b\u7684\u901f\u5ea6\u7f1d\u5728\u4e00\u8d77&#xff09;\u3002<\/p>\n<\/li>\n<li>\n<p>\u7b2c\u4e8c\u5e55&#xff1a;Cache&#xff08;\u7f13\u5b58&#xff09;\u2014\u2014 \u4e3a\u4ec0\u4e48\u9700\u8981\u5b83&#xff1f;&#xff08;\u672c\u8d28&#xff09;&#xff1a;\u5927\u767d\u8bdd&#043;\u6bd4\u55bb&#xff08;\u5927\u8001\u677f\u548c\u5c0f\u79d8\u4e66\u3001\u5927\u4ed3\u5e93\u548c\u529e\u516c\u684c&#xff09;\u3002<\/p>\n<\/li>\n<li>\n<p>\u7b2c\u4e09\u5e55&#xff1a;\u62c6\u89e3 ARM \u6838\u5fc3\u7ed3\u6784&#xff08;\u770b\u56fe\u8bf4\u8bdd&#xff09;&#xff1a;<\/p>\n<ul>\n<li>\n<p>L1 I-Cache (\u6307\u4ee4\u4e13\u7528) &amp; L1 D-Cache (\u6570\u636e\u4e13\u7528) \u2014\u2014 \u4e3a\u4ec0\u4e48\u5206\u5bb6&#xff1f;<\/p>\n<\/li>\n<li>\n<p>L2 Cache \u2014\u2014 \u5171\u4eab\u5927\u529e\u516c\u5ba4\u3002<\/p>\n<\/li>\n<li>\n<p>MMU \u2014\u2014 \u865a\u62df\u5730\u5740\u95e8\u7981\u3002<\/p>\n<\/li>\n<li>\n<p>SCU (Snoop Control Unit) \u2014\u2014 \u53cc\u6838\u6c9f\u901a\u6865\u6881\u3002<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u7b2c\u56db\u5e55&#xff1a;\u5b9e\u6218\u4e32\u8054&#xff1a;\u5728 Zynq PS \u4e2d\u8fd9\u4e9b\u673a\u5236\u5982\u4f55\u914d\u5408&#xff1f;<\/p>\n<\/li>\n<li>\n<p>\u603b\u7ed3&#xff1a;\u5347\u534e\u4e3b\u9898&#xff0c;\u5efa\u7acb\u5168\u5c40\u89c2\u3002<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u64b0\u5199\u5185\u5bb9&#xff08;\u901a\u4fd7\u5316\u4e0e\u6bd4\u55bb&#xff09;&#xff1a;<\/p>\n<ul>\n<li>\n<p>\u4e3a\u4ec0\u4e48\u53eb\u201c\u7f1d\u5408\u602a\u201d&#xff1f;&#xff1a;\u4f20\u7edf CPU \u8981\u4e48\u51af\u8bfa\u4f9d\u66fc&#xff08;\u7075\u6d3b\u4f46\u6162&#xff09;&#xff0c;\u8981\u4e48\u54c8\u4f5b&#xff08;\u5feb\u4f46\u4e0d\u7075\u6d3b&#xff09;\u3002ARM \u628a\u8fd9\u4fe9\u7f1d\u5728\u4e00\u8d77&#xff0c;\u5916\u9762\u770b\u662f\u51af\u8bfa\u4f9d\u66fc&#xff08;\u7edf\u4e00 4GB \u5185\u5b58&#xff09;&#xff0c;\u91cc\u9762\u8dd1\u7684\u662f\u54c8\u4f5b&#xff08;L1 \u5206\u5f00\u8dd1&#xff0c;\u6781\u5feb&#xff09;&#xff0c;\u8fd8\u8981\u52a0\u4e0a\u6d41\u6c34\u7ebf\u3001Cache\u3001MMU&#xff0c;\u7b80\u76f4\u662f\u62fc\u51d1\u5404\u79cd\u4f18\u70b9\u7684\u201c\u602a\u7269\u201d\u3002<\/p>\n<\/li>\n<li>\n<p>Cache \u7684\u672c\u8d28&#xff1a;\u901f\u5ea6\u5339\u914d\u3002CPU \u662f\u8d85\u7ea7\u9ad8\u94c1&#xff0c;DDR \u662f\u7eff\u76ae\u706b\u8f66\u3002\u4e0d\u628a\u6570\u636e\u63d0\u524d\u653e\u5230 Cache&#xff0c;CPU \u5c31\u5929\u5929\u7b49\u7eff\u76ae\u706b\u8f66\u3002<\/p>\n<\/li>\n<li>\n<p>MMU \u7684\u672c\u8d28&#xff1a;\u5185\u5b58\u7ba1\u7406\u7684\u9738\u9053\u603b\u88c1\u3002\u4e00\u662f\u7ffb\u8bd1&#xff08;\u865a\u62df\u5730\u5740\u8f6c\u7269\u7406\u5730\u5740&#xff09;&#xff0c;\u4e8c\u662f\u9694\u79bb\u4fdd\u62a4&#xff08;\u9632\u6b62\u91ce\u6307\u9488\u641e\u5d29\u7cfb\u7edf&#xff09;&#xff0c;\u4e09\u662f\u53ef\u4ee5\u8ba9\u7a0b\u5e8f\u4ee5\u4e3a\u81ea\u5df1\u62e5\u6709\u65e0\u9650\u5185\u5b58&#xff08;\u865a\u62df\u5316&#xff09;\u3002<\/p>\n<\/li>\n<li>\n<p>L1 \u5206\u652f&#xff08;\u54c8\u4f5b\u7ed3\u6784\u7684\u4f53\u73b0&#xff09;&#xff1a;I-Cache&#xff08;\u53d6\u6307\u4ee4&#xff09;\u548c D-Cache&#xff08;\u53d6\u6570\u636e&#xff09;\u3002\u4e3a\u4ec0\u4e48\u8981\u5206\u5f00&#xff1f;\u56e0\u4e3a\u53d6\u6307\u4ee4\u548c\u53d6\u6570\u636e\u540c\u65f6\u53d1\u751f&#xff0c;\u5982\u679c\u5171\u7528\u4e00\u6761\u7ebf&#xff0c;\u5c31\u4f1a\u9020\u6210\u201c\u51af\u8bfa\u4f9d\u66fc\u74f6\u9888\u201d&#xff08;\u5835\u8f66&#xff09;\u3002<\/p>\n<\/li>\n<li>\n<p>L2 Cache&#xff1a;\u8fd9\u662f L1 \u7684\u5907\u80ce&#xff0c;\u4e5f\u662f\u591a\u6838\u5171\u4eab\u7684\u3002\u56e0\u4e3a L1 \u592a\u5c0f\u4e86&#xff0c;\u88c5\u4e0d\u4e0b\u65e5\u5e38\u7528\u54c1\u3002<\/p>\n<\/li>\n<li>\n<p>Snoop Control Unit&#xff08;\u7aa5\u63a2\u63a7\u5236\u5355\u5143\/\u76d1\u542c\u63a7\u5236\u5355\u5143&#xff09;&#xff1a;\u89e3\u51b3\u591a\u6838\u6570\u636e\u4e00\u81f4\u6027\u95ee\u9898\u3002\u5047\u8bbe\u53cc\u6838&#xff0c;Core0 \u6539\u4e86 L1 \u91cc\u7684\u53d8\u91cf&#xff0c;Core1 \u7684 L1 \u91cc\u8fd8\u662f\u65e7\u503c\u3002SCU \u5c31\u662f\u5728 L1 \u548c L2 \u4e4b\u95f4\u76d1\u542c&#xff0c;\u4e00\u6709\u98ce\u5439\u8349\u52a8\u5c31\u540c\u6b65&#xff0c;\u4fdd\u8bc1\u201cL1 \u7f13\u5b58\u4e00\u81f4\u6027\u201d\u3002<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u5bf9\u7167\u7528\u6237\u63d0\u4f9b\u7684 Vivado \u622a\u56fe&#xff1a;\u6307\u51fa\u56fe\u4e2d\u54ea\u91cc\u662f L2 Cache&#xff0c;\u54ea\u91cc\u662f SCU&#xff08;Snoop Control Unit&#xff09;&#xff0c;\u54ea\u91cc\u662f GIC&#xff0c;\u54ea\u91cc\u662f DDR \u5185\u5b58\u63a7\u5236\u5668&#xff08;Memory Interfaces&#xff09;\u3002\u8ba9\u7528\u6237\u611f\u89c9\u56fe\u5f62\u548c\u77e5\u8bc6\u7ed3\u5408\u5f97\u5f88\u7d27\u5bc6\u3002<\/p>\n<\/li>\n<p>\u540c\u5b66&#xff0c;\u5750&#xff01;\u770b\u5230\u4f60\u76ef\u7740 Vivado \u91cc\u8fd9\u4e2a Zynq \u7684\u67b6\u6784\u56fe&#xff0c;\u629b\u51fa\u4e86\u8fd9\u4e48\u4e00\u8fde\u4e32\u76f4\u51fb\u7075\u9b42\u7684\u95ee\u9898&#xff0c;\u8001\u5e08\u771f\u7684\u5f88\u5174\u594b\u3002\u8fd9\u8bf4\u660e\u4f60\u5df2\u7ecf\u4e0d\u6ee1\u8db3\u4e8e\u201c\u770b\u8868\u9762\u7684\u70ed\u95f9\u201d&#xff0c;\u800c\u662f\u60f3\u770b\u61c2 ARM \u67b6\u6784\u8bbe\u8ba1\u7684\u201c\u5e95\u5c42\u95e8\u9053\u201d\u4e86\u3002<\/p>\n<p>\u4f60\u63d0\u5230\u7684\u201c\u7f1d\u5408\u602a\u201d&#xff0c;\u5176\u5b9e\u662f\u8ba1\u7b97\u673a\u4f53\u7cfb\u7ed3\u6784\u4e2d\u4e00\u4e2a\u975e\u5e38\u9ad8\u7ea7\u7684\u8bcd\u6c47\u3002ARM Cortex-A9 \u4e4b\u6240\u4ee5\u88ab\u79f0\u4e3a\u201c\u7f1d\u5408\u602a\u201d&#xff0c;\u662f\u56e0\u4e3a\u5b83\u4e3a\u4e86\u8ffd\u6c42\u6781\u81f4\u7684\u6027\u80fd&#xff0c;\u628a\u5404\u79cd\u67b6\u6784\u7684\u4f18\u70b9\u5f3a\u884c\u201c\u7f1d\u201d\u5728\u4e86\u4e00\u8d77\u3002<\/p>\n<p>\u54b1\u4eec\u5bf9\u7167\u7740\u4f60\u53d1\u7684\u8fd9\u5f20\u56fe&#xff0c;\u628a\u8fd9\u51e0\u4e2a\u6838\u5fc3\u6982\u5ff5\u4e00\u4e2a\u4e2a\u63b0\u5f00\u63c9\u788e\u3002<\/p>\n<hr \/>\n<h4>&#x1f3af; \u7b2c\u4e00\u5e55&#xff1a;\u4e3a\u4ec0\u4e48\u53eb\u201c\u7f1d\u5408\u602a\u201d&#xff1f;&#xff08;\u5b83\u7684\u6f14\u5316\u53f2&#xff09;<\/h4>\n<p>\u6700\u65e9\u7684 CPU \u6709\u4e24\u4e2a\u6781\u7aef&#xff1a;<\/p>\n<li>\n<p>\u51af\u00b7\u8bfa\u4f9d\u66fc\u7ed3\u6784&#xff1a;\u6307\u4ee4\u548c\u6570\u636e\u90fd\u5728\u540c\u4e00\u4e2a\u5185\u5b58\u91cc&#xff0c;\u8d70\u540c\u4e00\u6761\u603b\u7ebf\u3002\u4f18\u70b9\u662f\u7075\u6d3b&#xff0c;\u7f3a\u70b9\u662f\u201c\u5835\u8f66\u201d&#xff08;\u53d6\u6307\u4ee4\u548c\u53d6\u6570\u636e\u4e0d\u80fd\u540c\u65f6\u8fdb\u884c&#xff09;\u3002<\/p>\n<\/li>\n<li>\n<p>\u54c8\u4f5b\u7ed3\u6784&#xff1a;\u6307\u4ee4\u548c\u6570\u636e\u5206\u522b\u653e\u5728\u4e0d\u540c\u7684\u5185\u5b58&#xff0c;\u8d70\u4e0d\u540c\u7684\u603b\u7ebf\u3002\u4f18\u70b9\u662f\u6781\u5feb&#xff0c;\u7f3a\u70b9\u662f\u4e0d\u7075\u6d3b&#xff0c;\u5982\u679c\u4f60\u60f3\u4e34\u65f6\u6539\u4e2a\u7a0b\u5e8f&#xff0c;\u5f88\u96be\u3002<\/p>\n<\/li>\n<p>ARM \u662f\u600e\u4e48\u201c\u7f1d\u201d\u7684&#xff1f;<br \/>\n\u5b83\u5728\u82af\u7247\u5916\u90e8&#xff08;\u5373 DDR \u5185\u5b58&#xff09;\u91c7\u7528\u4e86\u51af\u00b7\u8bfa\u4f9d\u66fc\u7ed3\u6784&#xff0c;\u8ba9\u7a0b\u5e8f\u53ef\u4ee5\u968f\u4fbf\u8dd1&#xff1b;\u4f46\u5728\u82af\u7247\u5185\u90e8&#xff08;L1 Cache \u7ea7\u522b&#xff09;\u91c7\u7528\u4e86\u54c8\u4f5b\u7ed3\u6784\u3002\u5b83\u540c\u65f6\u8fd8\u628a\u591a\u7ea7\u6d41\u6c34\u7ebf\u3001MMU&#xff08;\u5185\u5b58\u7ba1\u7406&#xff09;\u3001\u591a\u6838\u5168\u90e8\u63c9\u8fdb\u53bb\u3002<\/p>\n<p>\u4e3a\u4ec0\u4e48\u9700\u8981\u8fd9\u6837\u6f14\u5316&#xff1f;\u597d\u5904\u5728\u54ea&#xff1f;<br \/>\n\u56e0\u4e3a\u73b0\u4ee3\u8f6f\u4ef6\u592a\u5927\u3001\u592a\u590d\u6742\u4e86\u3002\u5982\u679c\u4f60\u4e0d\u7528\u6d41\u6c34\u7ebf&#xff0c;\u6307\u4ee4\u5c31\u6162&#xff1b;\u5982\u679c\u4f60\u4e0d\u7528\u54c8\u4f5b\u7ed3\u6784\u5206\u5bb6&#xff0c;CPU \u5c31\u4f1a\u5185\u90e8\u5835\u8f66&#xff1b;\u5982\u679c\u4f60\u4e0d\u7528\u591a\u6838&#xff0c;\u7b97\u529b\u5c31\u4e0d\u591f\u3002\u8fd9\u4e2a\u201c\u7f1d\u5408\u602a\u201d\u7684\u8bbe\u8ba1&#xff0c;\u662f\u4e3a\u4e86\u8fbe\u5230\u201c\u65e2\u7075\u6d3b&#xff0c;\u53c8\u6781\u901f\u201d\u7684\u7ec8\u6781\u76ee\u6807\u3002<\/p>\n<hr \/>\n<h4>&#x1f3af; \u7b2c\u4e8c\u5e55&#xff1a;\u5230\u5e95\u4ec0\u4e48\u662f Cache&#xff1f;&#xff08;\u4e3a\u4ec0\u4e48\u5fc5\u987b\u8981\u6709&#xff1f;&#xff09;<\/h4>\n<p>\u5927\u767d\u8bdd\u672c\u8d28&#xff1a;\u901f\u5ea6\u4e0d\u5339\u914d\u7684\u7f13\u51b2\u533a\u3002<\/p>\n<ul>\n<li>\n<p>\u75db\u70b9&#xff1a;ARM \u5904\u7406\u5668&#xff08;Cortex-A9&#xff09;\u8dd1\u5f97\u6781\u5feb&#xff0c;\u4e3b\u9891\u80fd\u8fbe\u5230 666MHz \u751a\u81f3\u66f4\u9ad8\u3002\u800c\u5916\u9762\u7684 DDR \u5185\u5b58&#xff0c;\u56e0\u4e3a\u7269\u7406\u7535\u5bb9\u5145\u653e\u7535\u7684\u9650\u5236&#xff0c;\u901f\u5ea6\u6162\u5f97\u591a\u3002<\/p>\n<\/li>\n<li>\n<p>\u6bd4\u55bb&#xff1a;CPU \u662f\u6781\u5176\u806a\u660e\u7684\u535a\u58eb\u751f&#xff0c;DDR \u662f\u5341\u516c\u91cc\u5916\u7684\u8d85\u7ea7\u5927\u4ed3\u5e93\u3002\u535a\u58eb\u751f\u7b97\u4e00\u9053\u9898&#xff0c;\u5982\u679c\u6bcf\u6b21\u90fd\u8981\u8dd1\u5341\u516c\u91cc\u53bb\u4ed3\u5e93\u62ff\u4e2a\u6570\u636e&#xff0c;\u9ec4\u82b1\u83dc\u90fd\u51c9\u4e86\u3002<\/p>\n<\/li>\n<li>\n<p>\u89e3\u6cd5&#xff1a;\u5728\u535a\u58eb\u751f&#xff08;CPU&#xff09;\u624b\u8fb9\u653e\u51e0\u4e2a\u5c0f\u62bd\u5c49&#xff0c;\u8fd9\u5c31\u53eb Cache&#xff08;\u7f13\u5b58&#xff09;\u3002\u5e73\u65f6\u628a\u6700\u5e38\u7528\u7684\u6570\u636e\u653e\u5728\u62bd\u5c49\u91cc\u3002\u8fd9\u6837 CPU \u4e00\u4f38\u624b\u5c31\u80fd\u62ff\u5230&#xff0c;\u901f\u5ea6\u6781\u5feb\u3002Cache \u5b58\u5728\u7684\u552f\u4e00\u76ee\u7684&#xff0c;\u5c31\u662f\u4e3a\u4e86\u5f25\u8865 CPU \u548c DDR \u4e4b\u95f4\u7684\u5de8\u5927\u901f\u5ea6\u9e3f\u6c9f\u3002<\/p>\n<\/li>\n<\/ul>\n<hr \/>\n<h4>&#x1f3af; \u7b2c\u4e09\u5e55&#xff1a;\u62c6\u89e3\u67b6\u6784\u56fe&#xff08;\u56fe\u4e2d\u786c\u4ef6\u7684\u771f\u5b9e\u8eab\u4efd&#xff09;<\/h4>\n<p>\u5bf9\u7740\u4f60\u7684\u622a\u56fe&#xff0c;\u54b1\u4eec\u627e\u5230\u5bf9\u5e94\u4f4d\u7f6e&#xff0c;\u770b\u770b\u5b83\u4eec\u5230\u5e95\u5728\u5e72\u561b\u3002<\/p>\n<h5>1. L1 I-Cache&#xff08;\u6307\u4ee4\u4e13\u7528&#xff09;\u4e0e L1 D-Cache&#xff08;\u6570\u636e\u4e13\u7528&#xff09;<\/h5>\n<ul>\n<li>\n<p>\u5728\u56fe\u4e2d\u7684\u4f4d\u7f6e&#xff1a;\u5728 ARM Cortex-A9 CPU \u90a3\u4e2a\u65b9\u5757\u7684\u6700\u5185\u90e8&#xff08;\u867d\u7136\u56fe\u91cc\u6ca1\u753b\u8fd9\u4e48\u7ec6&#xff0c;\u4f46\u5b83\u662f\u6838\u5fc3\u91cc\u6700\u5b9d\u8d35\u7684\u4e1c\u897f&#xff09;\u3002<\/p>\n<\/li>\n<li>\n<p>\u5927\u767d\u8bdd&#xff1a;\u8fd9\u662f\u535a\u58eb\u751f\u6700\u8d34\u8eab\u7684\u4e24\u4e2a\u53e3\u888b\u3002<\/p>\n<ul>\n<li>\n<p>I-Cache&#xff08;Instruction&#xff09;&#xff1a;\u4e13\u95e8\u88c5\u201c\u4e0b\u4e00\u6b65\u8981\u5e72\u4ec0\u4e48\u201d&#xff08;\u6307\u4ee4&#xff09;\u3002\u6bd4\u5982\u52a0\u6cd5\u3001\u8df3\u8f6c\u3002<\/p>\n<\/li>\n<li>\n<p>D-Cache&#xff08;Data&#xff09;&#xff1a;\u4e13\u95e8\u88c5\u201c\u8981\u505a\u7684\u4e8b\u60c5\u9700\u8981\u4ec0\u4e48\u6750\u6599\u201d&#xff08;\u6570\u636e&#xff09;\u3002\u6bd4\u5982\u53d8\u91cf\u3001\u6570\u7ec4\u3002<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u4e3a\u4ec0\u4e48\u5206\u5f00&#xff1f; \u8fd9\u5c31\u662f\u54c8\u4f5b\u7ed3\u6784\u7684\u4f53\u73b0\u3002\u56e0\u4e3a CPU \u53ef\u4ee5\u5728\u540c\u4e00\u65f6\u523b&#xff0c;\u65e2\u53bb I-Cache \u53d6\u4e0b\u4e00\u6b65\u6307\u4ee4&#xff0c;\u53c8\u53bb D-Cache \u8bfb\u6570\u636e&#xff0c;\u4e92\u4e0d\u5e72\u6270\u3002<\/p>\n<\/li>\n<\/ul>\n<h5>2. L2 Cache&#xff08;\u56fe\u4e2d\u7684 512 KB L2 Cache and Controller&#xff09;<\/h5>\n<ul>\n<li>\n<p>\u5728\u56fe\u4e2d\u7684\u4f4d\u7f6e&#xff1a;\u4f60\u770b\u56fe\u53f3\u4fa7&#xff0c;\u521a\u597d\u5199\u7740 512 KB L2 Cache and Controller\u3002<\/p>\n<\/li>\n<li>\n<p>\u5927\u767d\u8bdd&#xff1a;L1 \u53e3\u888b\u592a\u5c0f\u4e86&#xff08;\u6bd4\u5982\u53ea\u6709 32KB&#xff09;&#xff0c;\u88c5\u4e0d\u4e0b\u592a\u591a\u4e1c\u897f\u3002L2 \u5c31\u662f\u535a\u58eb\u751f\u8eab\u8fb9\u7684\u4e00\u4e2a\u5171\u4eab\u5927\u62bd\u5c49\u3002\u4e24\u4e2a CPU \u6838\u90fd\u53ef\u4ee5\u7528\u3002<\/p>\n<\/li>\n<li>\n<p>\u4e3a\u4ec0\u4e48\u9700\u8981&#xff1a;\u5f53 L1 \u91cc\u627e\u4e0d\u5230\u4e1c\u897f\u65f6&#xff08;\u8fd9\u53eb Cache Miss&#xff09;&#xff0c;CPU \u4f1a\u53bb L2 \u91cc\u627e\u3002L2 \u6bd4 DDR \u5feb\u5f97\u591a&#xff0c;\u4e14\u80fd\u88c5\u4e0b\u66f4\u591a\u7684\u6570\u636e\u3002<\/p>\n<\/li>\n<\/ul>\n<h5>3. MMU&#xff08;\u5185\u5b58\u7ba1\u7406\u5355\u5143&#xff09;<\/h5>\n<ul>\n<li>\n<p>\u5728\u56fe\u4e2d\u7684\u4f4d\u7f6e&#xff1a;ARM \u6838\u5fc3\u5185\u90e8&#xff08;\u867d\u7136\u56fe\u91cc\u6ca1\u5355\u72ec\u753b&#xff0c;\u4f46\u5b83\u662f Cortex-A9 \u7684\u6807\u914d&#xff09;\u3002<\/p>\n<\/li>\n<li>\n<p>\u5927\u767d\u8bdd&#xff1a;\u865a\u62df\u5730\u5740\u7684\u201c\u7ffb\u8bd1\u5b98\u201d\u4e0e\u201c\u95e8\u7981\u201d\u3002<\/p>\n<\/li>\n<li>\n<p>\u4e3a\u4ec0\u4e48\u6781\u5176\u91cd\u8981&#xff1f;<\/p>\n<li>\n<p>\u7ffb\u8bd1&#xff1a;\u4f60\u5728 C \u8bed\u8a00\u91cc\u7528\u7684\u5730\u5740&#xff08;\u865a\u62df\u5730\u5740&#xff09;\u901a\u5e38\u548c DDR \u5b9e\u9645\u7269\u7406\u5730\u5740\u5bf9\u4e0d\u4e0a\u3002MMU \u81ea\u52a8\u5e2e\u4f60\u628a C \u4ee3\u7801\u7684\u5730\u5740\u7ffb\u8bd1\u6210 DDR \u7684\u771f\u5b9e\u5730\u5740\u3002<\/p>\n<\/li>\n<li>\n<p>\u4fdd\u62a4&#xff08;\u4e3a\u4ec0\u4e48\u9700\u8981\u5b83&#xff1f;&#xff09;&#xff1a;\u5982\u679c\u6ca1 MMU&#xff0c;\u4f60\u7684\u4e00\u4e2a\u91ce\u6307\u9488\u5199\u9519\u5730\u5740&#xff0c;\u628a\u64cd\u4f5c\u7cfb\u7edf\u5185\u6838\u7684\u6570\u636e\u8986\u76d6\u4e86&#xff0c;\u7cfb\u7edf\u5c31\u5d29\u4e86\u3002\u6709\u4e86 MMU&#xff0c;\u5b83\u89c4\u5b9a\u4f60\u53ea\u80fd\u8bbf\u95ee\u67d0\u4e00\u5757\u533a\u57df&#xff0c;\u8d8a\u754c\u76f4\u63a5\u62a5\u9519&#xff08;\u6bb5\u9519\u8bef&#xff09;\u3002\u6ca1\u6709 MMU&#xff0c;\u4f60\u6839\u672c\u8dd1\u4e0d\u4e86 Linux \u64cd\u4f5c\u7cfb\u7edf&#xff01;<\/p>\n<\/li>\n<\/li>\n<\/ul>\n<h5>4. Snoop Control Unit&#xff08;SCU&#xff0c;\u7f13\u5b58\u4e00\u81f4\u6027\u63a7\u5236\u5668&#xff09;<\/h5>\n<ul>\n<li>\n<p>\u5728\u56fe\u4e2d\u7684\u4f4d\u7f6e&#xff1a;\u4f60\u770b\u56fe\u53f3\u4fa7\u504f\u4e0a&#xff0c;\u6709\u4e2a\u65b9\u5757\u5199\u7740 Snoop Control unit&#xff0c;\u5939\u5728\u4e24\u4e2a CPU \u548c L2 Cache \u4e4b\u95f4\u3002<\/p>\n<\/li>\n<li>\n<p>\u5927\u767d\u8bdd&#xff1a;\u591a\u6838\u4e4b\u95f4\u7684\u201c\u76d1\u542c\u96f7\u8fbe\u201d\u3002<\/p>\n<\/li>\n<li>\n<p>\u4e3a\u4ec0\u4e48\u9700\u8981&#xff1f; \u5047\u8bbe\u4f60\u6709\u4e24\u4e2a\u5927\u8111&#xff08;CPU0 \u548c CPU1&#xff09;&#xff0c;\u4f60\u60f3\u8ba9\u5b83\u4eec\u4e00\u8d77\u7b97\u4e1c\u897f\u3002CPU0 \u6539\u4e86\u53d8\u91cf A&#xff0c;\u653e\u5728\u4e86\u81ea\u5df1\u7684 L1 D-Cache \u91cc&#xff1b;\u4f46 CPU1 \u7684 L1 D-Cache \u91cc\u5b58\u7684\u8fd8\u662f\u65e7\u7684 A\u3002\u4e24\u4e2a\u4eba\u5c31\u4f1a\u6253\u67b6\u3002<\/p>\n<\/li>\n<li>\n<p>SCU \u662f\u600e\u4e48\u5e72\u7684&#xff1f; SCU \u6302\u5728\u8fd9\u4e24\u4e2a\u6838\u4e4b\u95f4\u3002\u53ea\u8981 CPU0 \u5f80\u81ea\u5df1\u7684 L1 Cache \u5199\u6570\u636e&#xff0c;SCU \u7acb\u523b\u5c31\u80fd\u201c\u5077\u542c\u201d\u5230&#xff0c;\u5e76\u5f3a\u5236\u8ba9 CPU1 \u7684 L1 Cache \u91cc\u7684\u65e7\u6570\u636e\u5931\u6548\u3002\u8fd9\u4fdd\u8bc1\u4e86\u4e24\u4e2a\u6838\u5fc3\u6c38\u8fdc\u770b\u5230\u7684\u662f\u6700\u65b0\u7684\u6570\u636e&#xff0c;\u8fd9\u53eb\u7f13\u5b58\u4e00\u81f4\u6027&#xff08;Cache Coherency&#xff09;\u3002<\/p>\n<\/li>\n<\/ul>\n<hr \/>\n<h4>&#x1f4a1; \u8001\u5e08\u7684\u5b9e\u6218\u8054\u7cfb&#xff08;\u56de\u6263 Zynq \u5f00\u53d1&#xff09;<\/h4>\n<p>\u540c\u5b66&#xff0c;\u5982\u679c\u4f60\u5728 Zynq \u91cc\u505a\u53cc\u6838\u7f16\u7a0b&#xff0c;\u6216\u8005\u7528 DMA&#xff0c;\u8fd9\u4e9b\u6982\u5ff5\u53ef\u662f\u8981\u547d\u7684\u3002<\/p>\n<li>\n<p>\u4f60\u4e4b\u524d\u8c03 DMA \u8e29\u7684\u5751&#xff1a;\u4f60\u8c03 DMA \u65f6&#xff0c;DMA \u76f4\u63a5\u628a\u65b0\u6570\u636e\u5199\u5230\u4e86\u5916\u90e8\u7684 DDR\u3002\u4f46\u662f&#xff0c;CPU \u5185\u90e8\u7684 D-Cache \u91cc\u8fd8\u4fdd\u7559\u7740\u65e7\u6570\u636e\u7684\u62f7\u8d1d\u3002CPU \u8bfb\u7684\u65f6\u5019&#xff0c;\u8bfb\u5230\u7684\u662f Cache \u91cc\u7684\u65e7\u503c\u3002<\/p>\n<ul>\n<li>\n<p>\u89e3\u6cd5&#xff1a;\u8fd9\u5c31\u662f\u4e3a\u4ec0\u4e48\u8981\u8c03\u7528 Xil_DCacheInvalidateRange()&#xff0c;\u5f3a\u884c\u628a D-Cache \u91cc\u7684\u6570\u636e\u6e05\u6389&#xff0c;\u903c\u7740 CPU \u53bb\u5916\u9762\u7684\u5927\u4ed3\u5e93&#xff08;DDR&#xff09;\u62ff\u65b0\u6570\u636e\u3002<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u53cc\u6838\u5171\u4eab\u6570\u636e&#xff1a;\u5982\u679c\u4f60\u5728 main.c \u91cc\u8ba9\u4e24\u4e2a CPU \u8dd1\u4e0d\u540c\u7684\u7a0b\u5e8f&#xff0c;\u5b83\u4eec\u5171\u4eab\u4e00\u4e2a\u53d8\u91cf\u3002\u4f60\u5b8c\u5168\u4e0d\u9700\u8981\u81ea\u5df1\u5199\u4ee3\u7801\u53bb\u540c\u6b65&#xff0c;Snoop Control Unit (SCU) \u5728\u786c\u4ef6\u5e95\u5c42\u4f1a\u81ea\u52a8\u5e2e\u4f60\u4eec\u4fdd\u6301 L1 Cache \u7684\u540c\u6b65&#xff0c;\u8fd9\u5c31\u662f\u201c\u7f1d\u5408\u602a\u201d\u628a\u8fd9\u4e48\u590d\u6742\u7684\u786c\u4ef6\u95ee\u9898\u6084\u65e0\u58f0\u606f\u89e3\u51b3\u6389\u7684\u597d\u5904\u3002<\/p>\n<\/li>\n<p>\u8fd9\u5957\u67b6\u6784\u7684\u8bbe\u8ba1&#xff0c;\u672c\u8d28\u4e0a\u662f\u4e3a\u4e86\u201c\u5728\u6781\u901f\u4e0e\u7075\u6d3b\u4e4b\u95f4&#xff0c;\u627e\u5230\u7edd\u4f73\u7684\u5e73\u8861\u201d\u3002\u770b\u5b8c\u8fd9\u4e2a&#xff0c;\u4f60\u518d\u60f3\u60f3\u4f60\u6572\u7684\u90a3\u53e5 xil_printf&#xff0c;\u4f60\u5c31\u80fd\u660e\u767d&#xff0c;\u5b83\u662f\u5728\u6574\u4e2a\u82af\u7247\u5185\u90e8\u6781\u5176\u7cbe\u5bc6\u7684\u7f13\u5b58\u3001\u6d41\u6c34\u7ebf\u548c\u603b\u7ebf\u7684\u52a0\u6301\u4e0b&#xff0c;\u624d\u6253\u5370\u51fa\u6765\u7684\u3002\u8fd9\u624d\u662f\u771f\u6b63\u7684\u9ad8\u624b\u89c6\u89d2&#xff01;\u53bb\u6162\u6162\u54c1\u4e00\u54c1&#xff0c;\u8001\u5e08\u968f\u65f6\u5728&#xff01;<\/p>\n<p>\u672c\u56de\u7b54\u7531 AI \u751f\u6210&#xff0c;\u5185\u5bb9\u4ec5\u4f9b\u53c2\u8003&#xff0c;\u8bf7\u4ed4\u7ec6\u7504\u522b<\/p>\n","protected":false},"excerpt":{"rendered":"<p>ARM \u6838\u5fc3\u67b6\u6784&#xff0c;\u662f\u4e0d\u662f\u57fa\u4e8ecpu\u6838\u5fc3\u67b6\u6784\u6f14\u5316\u6765\u7684&#xff0c;\u53ef\u4ee5\u628a\u4e24\u8005\u7684\u793a\u610f\u56fe\u753b\u753b&#xff1b;\u6211\u60f3\u57fa\u4e8eARM\u7684\u5e95\u5c42\u786c\u4ef6\u67b6\u6784\u5f7b\u5e95\u4e86\u89e3ARM\u7684\u5e95\u5c42\u5de5\u4f5c\u673a\u5236\u3001\u539f\u7406&#xff0c;\u6709\u54ea\u4e9b\u6838\u5fc3\u8fd0\u884c\u673a\u5236\u3001\u539f\u7406&#xff0c;\u6709\u4e86\u8fd9\u4e9b\u8fd0\u884c\u673a\u5236\u3001\u539f\u7406\u53ef\u4ee5\u4fdd\u8bc1ARM\u7684\u5f3a\u5927\u529f\u80fd&#xff1b;\u57fa\u4e8ezynq ps\u7aef\u7684\u4e00\u4e2a\u7ecf\u5178\u4f8b\u7a0b\u6765\u8bf4\u660e\u8fd9\u4e9b\u6838\u5fc3\u673a\u5236\u7684\u8fd0\u4f5c&#xff0c;\u8c22\u8c22\u5566&#xff0c;\u540c\u5b66&#xff0c;\u5750&#xff01;\u4f60\u8fd9\u4e2a\u95ee\u9898\u95ee\u5f97\u6781\u6709\u6df1\u5ea6\u3002\u4f60\u5176\u5b9e\u662f\u5728\u95ee&amp;#xff1<\/p>\n","protected":false},"author":2,"featured_media":121757,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"topic":[],"class_list":["post-121758","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-server"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>ARM Cortex-A9 \u6838\u5fc3\u67b6\u6784\uff08\u6f14\u5316\u540e\u7684\u201c\u7f1d\u5408\u602a\u201d\uff09-deepseek - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.wsisp.com\/helps\/121758.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"ARM Cortex-A9 \u6838\u5fc3\u67b6\u6784\uff08\u6f14\u5316\u540e\u7684\u201c\u7f1d\u5408\u602a\u201d\uff09-deepseek - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"og:description\" content=\"ARM 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