{"id":1915,"date":"2018-12-25T02:11:14","date_gmt":"2018-12-25T02:11:14","guid":{"rendered":""},"modified":"2018-12-25T10:11:40","modified_gmt":"2018-12-25T02:11:40","slug":"%e8%8a%af%e7%89%87%e9%98%b2%e8%8c%83%e7%89%a9%e7%90%86%e6%94%bb%e5%87%bb%e7%9a%84%e6%a0%b9%e6%9c%ac%e5%8e%9f%e5%9b%a0%e6%98%af%e4%bb%80%e4%b9%88","status":"publish","type":"post","link":"http:\/\/www.szryc.com\/?p=1915","title":{"rendered":"\u82af\u7247\u9632\u8303\u7269\u7406\u653b\u51fb\u7684\u6839\u672c\u539f\u56e0\u662f\u4ec0\u4e48"},"content":{"rendered":"

\n\t\u8fd1\u65e5\uff0cArm<\/u>\u53d1\u5e03\u4e86\u4e00\u7cfb\u5217IP\u4ee5\u4fdd\u62a4\u82af\u7247\u514d\u53d7\u7269\u7406\u653b\u51fb\uff0c\u8be5\u7cfb\u5217\u6269\u5c55\u4e86Arm\u7684\u5b89\u5168IP\u4ea7\u54c1\u7ec4\u5408\uff0c\u4e3a\u6240\u6709\u7269\u8054\u7f51\u4ea7\u54c1\u63d0\u4f9b\u7269\u7406\u5b89\u5168\u6027\u3002\u8fd9\u4e9b\u7684\u5168\u65b0IP\u4ea7\u54c1\u5747\u6807\u6709\u4ee3\u8868\u7269\u7406\u5b89\u5168\u7684\u5b57\u6bcd“P”\u6807\u8bc6\uff0c\u5305\u62ec\uff1aCorte<\/u>x-M35P\u5904\u7406\u5668\u4ee5\u53ca\u4e00\u5957\u5168\u65b0\u7684\u3001\u53ef\u9632\u4fa7\u4fe1\u9053\u653b\u51fb\u7684\u5b89\u5168IP\uff08CryptoIsland-300P\u548cCryptoCell-312P\uff09\uff0c\u4e0b\u9762\u5c31\u8ba9\u6211\u4eec\u5728\u5468\u672b\u7684\u4f11\u95f2\u65f6\u5149\u4e00\u8d77\u63a2\u8ba8\u4e00\u4e0b\u3002Cortex-M35P\u7684\u4e3b\u8981\u4f18\u52bf<\/p>\n

\n\tCortex-M35P\u662f\u7b2c\u4e00\u6b3e\u63d0\u4f9b\u9632\u7269\u7406\u7be1\u6539\u529f\u80fd\u7684Armv8-M\u5904\u7406\u5668\uff0c\u4f7f\u5904\u7406\u5668\u6838\u5fc3\u6709\u80fd\u529b\u66f4\u5bb9\u6613\u3001\u66f4\u5feb\u901f\u5730\u53d6\u5f97\u652f\u4ed8\u7ea7\u6216\u7535\u4fe1\u7ea7\u7684\u5b89\u5168\u8ba4\u8bc1\u3002Cortex-M35P\u662fArm\u5b89\u5168\u4ea7\u54c1\u7ec4\u5408\u7684\u5ef6\u4f38\uff0c\u9075\u5faaArm\u7684PSA\u5e73\u53f0\u5b89\u5168\u67b6\u6784\u539f\u5219\u3002<\/p>\n

\n\t <\/div>\n

\n\t<\/p>\n

\n\t\u4e3a\u4ec0\u4e48\u8981\u9632\u8303\u7269\u7406\u653b\u51fb\uff1f<\/p>\n

\n\t\u6211\u4eec\u5728\u65e5\u5e38\u751f\u6d3b\u4e2d\u4f1a\u9047\u5230\u8d8a\u6765\u8d8a\u591a\u7684\u8bbe\u5907——\u6bd4\u5982\u5728\u5bb6\u4e2d\u3001\u5de5\u4f5c\u573a\u6240\u3001\u533b\u9662\uff0c\u5de5\u4e1a\u573a\u6240\u4ee5\u53ca\u57ce\u5e02\u7a7a\u95f4\u7b49\u7b49——\u5176\u4e2d\u6709\u4e9b\u662f\u8fde\u7f51\u7684\uff0c\u6709\u4e9b\u5219\u4e0d\u662f\u3002\u5728\u8fd9\u5176\u4e2d\uff0c\u8bb8\u591a\u8bbe\u5907\u5b58\u50a8\u4e86\u975e\u5e38\u6709\u4ef7\u503c\u7684\u4e2a\u4eba\u4fe1\u606f\uff0c\u4f7f\u5b83\u4eec\u6210\u4e3a\u7269\u7406\u653b\u51fb\u7684\u76ee\u6807\u3002<\/p>\n

\n\t\u4ece\u6210\u672c\u89d2\u5ea6\u6765\u770b\uff0c\u7531\u4e8e\u7b80\u5355\u6570\u636e\u91c7\u96c6\u5de5\u5177\u7684\u90e8\u7f72\u548c\u5b58\u5728\uff0c\u8fd9\u4e9b\u653b\u51fb\u53d8\u5f97\u66f4\u5177\u6709\u53ef\u884c\u6027\u3002\u6211\u4eec\u8d8a\u6765\u8d8a\u591a\u5730\u76ee\u7779\u5230\u7269\u7406\u653b\u51fb\u7684\u53d1\u751f\uff0c\u4f8b\u5982\u4fa7\u4fe1\u9053\u653b\u51fb\u5df2\u6210\u4e3a\u6807\u51c6\u5b89\u5168\u5a01\u80c1\u6a21\u578b\u7684\u4e00\u90e8\u5206\u3002\u5bf9\u7269\u7406\u653b\u51fb\u7684\u4e3b\u8981\u62c5\u5fe7\u6765\u81ea\u653b\u51fb\uff08\u6240\u4ea7\u751f\u5371\u5bb3\uff09\u7684\u5ef6\u4f38\u6548\u5e94\uff0c\u5373\u901a\u8fc7\u653b\u51fb\u4e00\u53f0\u8bbe\u5907\uff0c\u653b\u51fb\u8005\u53ef\u4ee5\u63d0\u53d6\u6e90\u4ee3\u7801\u5e76\u53d1\u73b0\u6f0f\u6d1e\uff0c\u8fdb\u800c\u8fdb\u884c\u66f4\u5927\u89c4\u6a21\u7684\u7f51\u7edc\u653b\u51fb\u3002<\/p>\n

\n\t\u4e0e\u5176\u4ed6\u653b\u51fb\u7c7b\u578b\u76f8\u5173\u7684\u7269\u7406\u653b\u51fb<\/p>\n

\n\t\u968f\u7740\u653b\u51fb\u5e73\u9762\u4e0d\u65ad\u589e\u52a0\u4ee5\u53ca\u7269\u8054\u7f51\uff08IoT<\/u>\uff09\u89c4\u6a21\u5448\u6307\u6570\u7ea7\u589e\u957f\uff0c\u5728\u4ea7\u54c1\u8bbe\u8ba1\u89c4\u5212\u8fc7\u7a0b\u4e2d\u53ef\u80fd\u5f88\u96be\u6839\u636e\u73b0\u5728\u7684\u60c5\u51b5\u6765\u786e\u5b9a\u5982\u4f55\u4fdd\u62a4\u60a8\u7684\u4e0b\u4e00\u4ee3\u8bbe\u5907\u3002 \u4e3a\u4e86\u7406\u89e3\u5e76\u5e94\u5bf9\u8fd9\u4e00\u72b6\u51b5\uff0cArm\u901a\u8fc7\u9488\u5bf9\u56db\u79cd\u4e0d\u540c\u7c7b\u578b\u7684\u653b\u51fb\u76ee\u6807\u5efa\u6a21\u6765\u63cf\u8ff0\u5b89\u5168\u6027\uff0c\u5b83\u4eec\u5206\u522b\u662f\uff1a\u901a\u4fe1\u3001\u4ea7\u54c1\u751f\u547d\u5468\u671f\u3001\u8f6f\u4ef6\u653b\u51fb\u4ee5\u53ca\u7269\u7406\u653b\u51fb\uff0c\u5982\u56fe2\u6240\u793a\u3002<\/p>\n

\n\t\u8bbe\u5907\u9762\u4e34\u7684\u98ce\u9669\u53d6\u51b3\u4e8e\u5e94\u7528\u7a0b\u5e8f\u548c\u6570\u636e\u7684\u4ef7\u503c\u3002\u8bb8\u591a\u8bbe\u5907\u9700\u8981\u8003\u8651\u66f4\u591a\u9488\u5bf9\u7cfb\u7edf\u5e95\u5c42\u7684\u653b\u51fb\uff0c\u4f8b\u5982\u9488\u5bf9\u5e95\u5c42\u8f6f\u4ef6\u7684\u653b\u51fb\uff0c\u53ef\u4ee5\u501f\u52a9Arm TrustZone\u63d0\u4f9b\u7684\u9694\u79bb\u6765\u83b7\u5f97\u5145\u5206\u7684\u4fdd\u62a4\u3002\u4f46\u662f\uff0c\u8fd8\u6709\u4e00\u4e9b\u5176\u4ed6\u7c7b\u578b\u7684\u7528\u6237\u4ea7\u54c1\u9700\u8981\u8003\u8651\u66f4\u4e3a\u590d\u6742\u7684\u653b\u51fb\u98ce\u9669\uff0c\u4f8b\u5982\u5404\u7c7b\u901a\u8fc7\u7269\u7406\u65b9\u5f0f\u653b\u51fb\u82af\u7247\u7684\u98ce\u9669\u3002<\/p>\n

\n\t<\/p>\n

\n\t\u56fe2\uff1a\u5bf9\u56db\u79cd\u4e0d\u540c\u7c7b\u578b\u5b89\u5168\u653b\u51fb\u7684\u5a01\u80c1\u7cfb\u6570\u8fdb\u884c\u8bc4\u4f30<\/p>\n

\n\t\u5f53\u5bf9\u8bbe\u5907\u53ca\u5176\u6240\u9762\u4e34\u7684\u5a01\u80c1\u8fdb\u884c\u8bc4\u4f30\u540e\uff0c\u7d27\u63a5\u7740\u7684\u4e00\u9879\u91cd\u8981\u7684\u5de5\u4f5c\u5c31\u662f\u91c7\u53d6\u9002\u5f53\u7684\u63aa\u65bd\u6765\u4fdd\u62a4\u60a8\u7684\u8bbe\u5907\u3002Arm\u5efa\u8bae\u4f7f\u7528\u5206\u5c42\u5b89\u5168\u6cd5\uff0c\u4f7f\u7528\u6b63\u786e\u7684\u53cd\u5236\u7ec4\u5408\u5bf9\u60a8\u7684\u8bbe\u5907\u5b9e\u65bd\u4e0d\u540c\u5c42\u6b21\u7684\u4fdd\u62a4\u3002<\/p>\n

\n\t<\/p>\n

\n\tArm\u6269\u5c55\u4e86\u4e00\u7cfb\u5217IP\u4ee5\u5e94\u5bf9\u6240\u6709\u7c7b\u578b\u7684\u5b89\u5168\u5a01\u80c1\u3002<\/p>\n

\n\t1. \u7269\u7406\u4fdd\u62a4<\/p>\n

\n\t\u5f53\u53d7\u4fdd\u62a4\u7684\u8d44\u4ea7\u4ef7\u503c\u8db3\u591f\u9ad8\u65f6\uff0c\u9ed1\u5ba2\u5c31\u6709\u8db3\u591f\u7684\u52a8\u673a\u5bf9\u8bbe\u5907\u91c7\u53d6\u7269\u7406\u653b\u51fb\u3002<\/p>\n

\n\t2. \u6307\u4ee4cache<\/p>\n

\n\t\u96c6\u6210cache\u63d0\u9ad8\u4e86\u4ece\u5d4c\u5165\u5f0fFlash\u53d6\u6307\u4ee4\u65f6\u7684\u6027\u80fd\u3002<\/p>\n

\n\t3. TrustZone\uff1a\u5168\u7cfb\u7edf\u5b89\u5168\u7684\u57fa\u7840<\/p>\n

\n\tTrustZone\u5f3a\u5316\u4e86\u7cfb\u7edf\u4e2d\u5bf9\u4fe1\u606f\u5b89\u5168\u654f\u611f\u7684\u529f\u80fd\u7684\u4fdd\u62a4\u3002\u5b83\u4e0d\u4ec5\u63d0\u4f9b\u4e86\u5bf9\u4ee3\u7801\u3001\u5185\u5b58\u548cI\/O\u7684\u8f6f\u4ef6\u9694\u79bb\uff0c\u540c\u65f6\u8fd8\u6ee1\u8db3\u4e86\u5b9e\u65f6\u3001\u786e\u5b9a\u7684\u54cd\u5e94\uff0c\u6700\u5c0f\u7684\u4e0a\u4e0b\u6587\u5207\u6362\u5f00\u9500\u4ee5\u53ca\u7cfb\u7edf\u8981\u6613\u4e8e\u8f6f\u4ef6\u5f00\u53d1\u7684\u8981\u6c42\u3002<\/p>\n

\n\t<\/p>\n

\n\t4. \u7528\u4e8e\u4efb\u52a1\u9694\u79bb\u7684\u5185\u5b58\u4fdd\u62a4\u5355\u5143\uff08MPU\uff09<\/p>\n

\n\t\u8f6f\u4ef6\u53ef\u9760\u6027\u548c\u7cfb\u7edf\u5b89\u5168\u6027\u7684\u63d0\u9ad8\u53ef\u85c9\u7531\u9650\u5236\u6bcf\u4e2a\u6a21\u5757——\u4f7f\u5176\u4ec5\u88ab\u5141\u8bb8\u8bbf\u95ee\u5b8c\u6210\u529f\u80fd\u6240\u5fc5\u9700\u7684\u7279\u5b9a\u5b58\u50a8\u5668\u533a\u57df\u6765\u5b9e\u73b0\u3002\u901a\u8fc7\u8fd9\u79cd\u65b9\u5f0f\uff0cMPU\u53ef\u4ee5\u4fdd\u62a4\u5f53\u524d\u4efb\u52a1\u6240\u9700\u8d44\u6e90\u4ee5\u5916\u7684\u6240\u6709\u5176\u5b83\u5b58\u50a8\u5668\u548c\u5916\u8bbe\u514d\u53d7\u7834\u574f\u6216\u672a\u7ecf\u6388\u6743\u7684\u8bbf\u95ee\uff0c\u4ece\u800c\u663e\u7740\u63d0\u9ad8\u7cfb\u7edf\u7684\u53ef\u9760\u6027\u3002<\/p>\n

\n\t<\/p>\n

\n\t5. \u53ef\u6269\u5c55\u6027\u7684\u534f\u5904\u7406\u5668\u63a5\u53e3<\/p>\n

\n\t\u5bf9\u4e8e\u7279\u5b9a\u5e94\u7528\u7a0b\u5e8f\uff0c\u4e13\u7528\u8ba1\u7b97\u53ef\u5927\u6709\u4f5c\u4e3a\u3002\u5728\u5b9e\u73b0\u8fd9\u4e00\u6269\u5c55\u8ba1\u7b97\u80fd\u529b\u7684\u540c\u65f6\uff0c\u4fdd\u6301\u4e16\u754c\u9886\u5148\u751f\u6001\u7cfb\u7edf\u7684\u6240\u6709\u4f18\u52bf\u540c\u6837\u81f3\u5173\u91cd\u8981——\u5373\u5f00\u53d1\u5de5\u5177\u3001\u7f16\u8bd1\u5668\u3001\u8c03\u8bd5\u5668\u3001\u64cd\u4f5c\u7cfb\u7edf\u548c\u4e2d\u95f4\u4ef6\u7684\u6700\u5e7f\u6cdb\u9009\u62e9\u3002<\/p>\n

\n\t6. \u6570\u5b57\u4fe1\u53f7\u5904\u7406\uff08Digital Signal Processing, DSP<\/u>\uff09\u6269\u5c55<\/p>\n

\n\t\u4e3a\u4e86\u52a0\u901f\u8f6f\u4ef6\u5f00\u53d1\uff0cArm\u8fd8\u5728CMSIS\u9879\u76ee\u4e2d\u63d0\u4f9b\u514d\u8d39\u7684DSP\u5e93\u3002\u8be5\u5e93\u5305\u542b\u4e00\u7cfb\u5217\u6570\u5b57\u6ee4\u6ce2\u5668<\/u>\u3001\u8f6c\u6362\u548c\u6570\u5b66\u51fd\u6570\uff08\u5982\u77e9\u9635\uff09\uff0c\u5e76\u652f\u6301\u4e00\u7cfb\u5217\u6570\u636e\u7c7b\u578b\u3002<\/p>\n

\n\t\u603b\u7ed3<\/p>\n

\n\t\u603b\u4e4b\uff0c\u7269\u7406\u653b\u51fb\u662f\u5bf9\u5d4c\u5165\u5f0f\u6216\u7269\u8054\u7f51\u8bbe\u5907\u7684\u51e0\u79cd\u6f5c\u5728\u653b\u51fb\u4e4b\u4e00\u3002 Arm\u7684PSA\u5e73\u53f0\u5b89\u5168\u67b6\u6784\u4e3a\u8bbe\u8ba1\u4eba\u5458\u5728\u5a01\u80c1\u5efa\u6a21\u8fc7\u7a0b\u4e2d\u6240\u9700\u901a\u8fc7\u7684\u5b89\u5168\u7ea7\u522b\u8fdb\u884c\u8bc4\u4f30\uff0c\u4ee5\u4fbf\u91c7\u7528\u9002\u5f53\u7684\u53cd\u5236\u7ec4\u5408\u3002\u7269\u7406\u653b\u51fb\u6b63\u53d8\u5f97\u6108\u53d1\u7b80\u5355\u548c\u5ec9\u4ef7\uff0c\u56e0\u6b64\u5148\u8fdb\u7684\u82af\u7247\u4fdd\u62a4\u6280\u672f\u81f3\u5173\u91cd\u8981\u3002\u7136\u800c\uff0c\u7269\u7406\u5b89\u5168\u8bbe\u8ba1\u5219\u901a\u5e38\u8f83\u4e3a\u590d\u6742\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

\u8fd1\u65e5\uff0c Arm \u53d1\u5e03\u4e86\u4e00\u7cfb\u5217IP\u4ee5\u4fdd\u62a4\u82af\u7247\u514d\u53d7\u7269\u7406\u653b\u51fb\uff0c\u8be5\u7cfb\u5217\u6269\u5c55\u4e86Arm\u7684\u5b89\u5168IP\u4ea7\u54c1\u7ec4\u5408\uff0c\u4e3a\u6240\u6709\u7269\u8054\u7f51\u4ea7\u54c1\u63d0\u4f9b\u7269\u7406\u5b89\u5168\u6027\u3002\u8fd9\u4e9b\u7684\u5168\u65b0IP\u4ea7\u54c1\u5747\u6807\u6709\u4ee3\u8868\u7269\u7406\u5b89\u5168\u7684\u5b57\u6bcdP\u6807\u8bc6\uff0c\u5305\u62ec\uff1a<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[14],"tags":[],"_links":{"self":[{"href":"http:\/\/www.szryc.com\/index.php?rest_route=\/wp\/v2\/posts\/1915"}],"collection":[{"href":"http:\/\/www.szryc.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.szryc.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.szryc.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.szryc.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1915"}],"version-history":[{"count":0,"href":"http:\/\/www.szryc.com\/index.php?rest_route=\/wp\/v2\/posts\/1915\/revisions"}],"wp:attachment":[{"href":"http:\/\/www.szryc.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1915"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.szryc.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1915"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.szryc.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1915"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}