{"id":41,"date":"2023-03-21T17:21:23","date_gmt":"2023-03-21T09:21:23","guid":{"rendered":"https:\/\/www.cywang.work\/?p=41"},"modified":"2023-04-06T09:37:48","modified_gmt":"2023-04-06T01:37:48","slug":"axi%e5%8d%8f%e8%ae%ae-%e9%9d%9e%e5%af%b9%e9%bd%90-%e7%aa%84%e4%bc%a0%e8%be%93-%e8%af%bb%e8%bf%94%e5%9b%9edata%e6%a0%bc%e5%bc%8f","status":"publish","type":"post","link":"http:\/\/www.cywang.work\/index.php\/2023\/03\/21\/axi%e5%8d%8f%e8%ae%ae-%e9%9d%9e%e5%af%b9%e9%bd%90-%e7%aa%84%e4%bc%a0%e8%be%93-%e8%af%bb%e8%bf%94%e5%9b%9edata%e6%a0%bc%e5%bc%8f\/","title":{"rendered":"AXI\u534f\u8bae\u2014\u2014\u975e\u5bf9\u9f50\/\u7a84\u4f20\u8f93 \u8bfb\u8fd4\u56dedata\u683c\u5f0f"},"content":{"rendered":"\n<p>\u7f51\u4e0a\u6709\u8bb8\u591a\u5173\u4e8eAXI\u975e\u5bf9\u9f50\u4f20\u8f93\u548c\u7a84\u4f20\u8f93\u7684<a rel=\"noreferrer noopener\" href=\"https:\/\/zhuanlan.zhihu.com\/p\/422564659\" target=\"_blank\">\u4ecb\u7ecd<\/a>\uff0c\u4f46\u914d\u56fe\u548c\u4ecb\u7ecd\u5185\u5bb9\u5747\u4ee5wdata\u4e3a\u4f8b\uff0c\u7f3a\u5c11slave\u8fd4\u56de\u8bfbdata\u7684\u5904\u7406\u529e\u6cd5\u3002<\/p>\n\n\n\n<p>\u901a\u8fc7\u67e5\u9605arm community\u8bba\u575b\u53d1\u5e03\u7684axi unaligned transfer<a href=\"https:\/\/community.arm.com\/support-forums\/f\/architectures-and-processors-forum\/4792\/axi4-unaligned-read-transactions\/167548#167548\" target=\"_blank\" rel=\"noreferrer noopener\">\u76f8\u5173\u5e16\u5b50<\/a>\uff0c\u786e\u8ba4\u4e86\u975e\u5bf9\u9f50\/\u7a84\u4f20\u8f93\u65f6\u8bfb\u8fd4\u56dedata\u7684\u683c\u5f0f\uff0c\u672c\u6587\u5c06\u5c31\u6b64\u5c55\u5f00\u4ecb\u7ecd\u3002<\/p>\n\n\n\n<p>\u9996\u5148\u6211\u4eec\u5047\u8bbe\u603b\u7ebf\u5bbd\u5ea6\u4e3a64 bit\uff0c\u6709\u8fd9\u6837\u4e00\u7247\u5185\u5b58\u533a\u57df\uff0c\u5176\u4e2d\u5b58\u50a8\u7684\u503c\u5982\u4e0b\u56fe\u6240\u793a\uff08\u5bf9\u5e94\u5730\u5740\u4e3a7-0, 15-8\uff09\uff1a<br><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"67\" class=\"wp-image-50\" style=\"width: 800px;\" src=\"http:\/\/www.cywang.work\/wp-content\/uploads\/2023\/03\/image-2.png\" alt=\"\" srcset=\"http:\/\/www.cywang.work\/wp-content\/uploads\/2023\/03\/image-2.png 740w, http:\/\/www.cywang.work\/wp-content\/uploads\/2023\/03\/image-2-300x25.png 300w\" sizes=\"auto, (max-width: 767px) 89vw, (max-width: 1000px) 54vw, (max-width: 1071px) 543px, 580px\" \/><\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\u7a84\u4f20\u8f93<\/strong><\/h3>\n\n\n\n<p><strong>INCR<\/strong><br>\u6211\u4eec\u53d1\u9001burst length\u4e3a4 transfers\uff0cbusrt size\u4e3a32-bits\uff0cburst type\u4e3aINCR\uff0c\u8d77\u59cb\u5730\u5740\u4e3a0\u7684\u7a84\u4f20\u8f93\u5305\uff0c\u5219\u8fd4\u56de\u7684rdata\u5206\u522b\u4e3a0x89abcdef\u30010x1234567\u30010x76543210\u30010xfedcba98\uff0c\u9ad832\u4f4d\u88650\u3002<br><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"219\" class=\"wp-image-51\" style=\"width: 800px;\" src=\"http:\/\/www.cywang.work\/wp-content\/uploads\/2023\/03\/image-3.png\" alt=\"\" srcset=\"http:\/\/www.cywang.work\/wp-content\/uploads\/2023\/03\/image-3.png 1121w, http:\/\/www.cywang.work\/wp-content\/uploads\/2023\/03\/image-3-300x82.png 300w, http:\/\/www.cywang.work\/wp-content\/uploads\/2023\/03\/image-3-1024x280.png 1024w, http:\/\/www.cywang.work\/wp-content\/uploads\/2023\/03\/image-3-768x210.png 768w\" sizes=\"auto, (max-width: 767px) 89vw, (max-width: 1000px) 54vw, (max-width: 1071px) 543px, 580px\" \/><\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\u975e\u5bf9\u9f50\u4f20\u8f93<\/strong><\/h3>\n\n\n\n<p><strong>INCR<\/strong><br>\u6211\u4eec\u53d1\u9001burst length\u4e3a4 transfers\uff0cbusrt size\u4e3a32-bits\uff0cburst type\u4e3aINCR\uff0c\u8d77\u59cb\u5730\u5740\u4e3a3\u7684\u975e\u5bf9\u9f50\u4f20\u8f93\u5305\uff0c\u5219\u8fd4\u56de\u7684rdata\u5206\u522b\u4e3a0x23456789\u30010x54321001\u30010xdcba9876\u30010xfe\uff0c\u9ad832\u4f4d\u88650\uff0c\u6700\u540e\u4e00\u7b14transfer\u672a\u4f7f\u7528\u4f4d\u88650\u3002<br><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"213\" class=\"wp-image-55\" style=\"width: 800px;\" src=\"http:\/\/www.cywang.work\/wp-content\/uploads\/2023\/03\/image-4.png\" alt=\"\" srcset=\"http:\/\/www.cywang.work\/wp-content\/uploads\/2023\/03\/image-4.png 1107w, http:\/\/www.cywang.work\/wp-content\/uploads\/2023\/03\/image-4-300x80.png 300w, http:\/\/www.cywang.work\/wp-content\/uploads\/2023\/03\/image-4-1024x273.png 1024w, http:\/\/www.cywang.work\/wp-content\/uploads\/2023\/03\/image-4-768x205.png 768w\" sizes=\"auto, (max-width: 767px) 89vw, (max-width: 1000px) 54vw, (max-width: 1071px) 543px, 580px\" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u7f51\u4e0a\u6709\u8bb8\u591a\u5173\u4e8eAXI\u975e\u5bf9\u9f50\u4f20\u8f93\u548c\u7a84\u4f20\u8f93\u7684\u4ecb\u7ecd\uff0c\u4f46\u914d\u56fe\u548c\u4ecb\u7ecd\u5185\u5bb9\u5747\u4ee5wdata\u4e3a\u4f8b\uff0c\u7f3a\u5c11slave\u8fd4\u56de\u8bfbdata &hellip; 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