{"id":1237,"date":"2022-01-04T16:55:10","date_gmt":"2022-01-04T08:55:10","guid":{"rendered":"http:\/\/139.9.1.231\/?p=1237"},"modified":"2022-01-04T17:48:58","modified_gmt":"2022-01-04T09:48:58","slug":"axi4","status":"publish","type":"post","link":"http:\/\/139.9.1.231\/index.php\/2022\/01\/04\/axi4\/","title":{"rendered":"AXI4\u534f\u8bae"},"content":{"rendered":"\n<p class=\"has-light-pink-background-color has-background\">        ZYNQ\u5c06\u9ad8\u6027\u80fdARM Cotex-A\u7cfb\u5217\u5904\u7406\u5668\u4e0e\u9ad8\u6027\u80fdFPGA\u5728\u5355\u82af\u7247\u5185\u7d27\u5bc6\u7ed3\u5408\uff0c\u4e3a\u8bbe\u8ba1\u5e26\u6765\u4e86\u5982\u51cf\u5c0f\u4f53\u79ef\u548c\u529f\u8017\u3001\u964d\u4f4e\u8bbe\u8ba1\u98ce\u9669\uff0c\u589e\u52a0\u8bbe\u8ba1\u7075\u6d3b\u6027\u7b49\u8bf8\u591a\u4f18\u70b9\u3002\u5728\u5c06\u4e0d\u540c\u5de5\u827a\u7279\u5f81\u7684\u5904\u7406\u5668\u4e0eFPGA\u878d\u5408\u5728\u4e00\u4e2a\u82af\u7247\u4e0a\u4e4b\u540e\uff0c\u7247\u5185\u5904\u7406\u5668\u4e0eFPGA\u4e4b\u95f4\u7684\u4e92\u8054\u901a\u8def\u5c31\u6210\u4e86ZYNQ\u82af\u7247\u8bbe\u8ba1\u7684\u91cd\u4e2d\u4e4b\u91cd\u3002\u5982\u679cCotex-A9\u4e0eFPGA\u4e4b\u95f4\u7684\u6570\u636e\u4ea4\u4e92\u6210\u4e3a\u74f6\u9888\uff0c\u90a3\u4e48\u5904\u7406\u5668\u4e0eFPGA\u7ed3\u5408\u7684\u6027\u80fd\u4f18\u52bf\u5c31\u4e0d\u80fd\u53d1\u6325\u51fa\u6765\u3002<\/p>\n\n\n\n<p>      AXI\u7684\u82f1\u6587\u5168\u79f0\u662fAdvanced eXtensible Interface\uff0c\u5373\u9ad8\u7ea7\u53ef\u6269\u5c55\u63a5\u53e3\uff0c\u5b83\u662fARM\u516c\u53f8\u6240\u63d0\u51fa\u7684AMBA\uff08Advanced Microcontroller Bus Architecture\uff09\u534f\u8bae\u7684\u4e00\u90e8\u5206<\/p>\n\n\n\n<p>      AXI\u534f\u8bae\u5c31\u662f\u63cf\u8ff0\u4e3b\u8bbe\u5907\u548c\u4ece\u8bbe\u5907\u4e4b\u95f4\u7684\u6570\u636e\u4f20\u8f93\u65b9\u5f0f\uff0c\u5728\u8be5\u534f\u8bae\u4e2d\uff0c\u4e3b\u8bbe\u5907\u548c\u4ece\u8bbe\u5907\u4e4b\u95f4\u901a\u8fc7\u63e1\u624b\u4fe1\u53f7\u5efa\u7acb\u8fde\u63a5\u3002<\/p>\n\n\n\n<p>AXI\u534f\u8bae\u662f\u4e00\u79cd\u9ad8\u6027\u80fd\u3001\u9ad8\u5e26\u5bbd\u3001\u4f4e\u5ef6\u8fdf\u7684\u7247\u5185\u603b\u7ebf\uff0c\u5177\u6709\u5982\u4e0b\u7279\u70b9\uff1a<br>1\u3001\u603b\u7ebf\u7684\u5730\u5740\/\u63a7\u5236\u548c\u6570\u636e\u901a\u9053\u662f\u5206\u79bb\u7684\uff1b<br>2\u3001\u652f\u6301\u4e0d\u5bf9\u9f50\u7684\u6570\u636e\u4f20\u8f93\uff1b<br>3\u3001\u652f\u6301\u7a81\u53d1\u4f20\u8f93\uff0c\u7a81\u53d1\u4f20\u8f93\u8fc7\u7a0b\u4e2d\u53ea\u9700\u8981\u9996\u5730\u5740\uff1b<br>4\u3001\u5177\u6709\u5206\u79bb\u7684\u8bfb\/\u5199\u6570\u636e\u901a\u9053\uff1b<br>5\u3001\u652f\u6301\u663e\u7740\u4f20\u8f93\u8bbf\u95ee\u548c\u4e71\u5e8f\u8bbf\u95ee\uff1b<br>6\u3001\u66f4\u52a0\u5bb9\u6613\u8fdb\u884c\u65f6\u5e8f\u6536\u655b\u3002<\/p>\n\n\n\n<p>        \u5728\u6570\u5b57\u7535\u8def\u4e2d\u53ea\u80fd\u4f20\u8f93\u4e8c\u8fdb\u5236\u65700\u548c1\uff0c\u56e0\u6b64\u53ef\u80fd\u9700\u8981\u4e00\u7ec4\u4fe1\u53f7\u624d\u80fd\u9ad8\u6548\u5730\u4f20\u8f93\u4fe1\u606f\uff0c\u8fd9\u4e00\u7ec4\u4fe1\u53f7\u5c31\u7ec4\u6210\u4e86\u63a5\u53e3\u3002AXI4\u534f\u8bae\u652f\u6301\u4ee5\u4e0b\u4e09\u79cd\u7c7b\u578b\u7684\u63a5\u53e3\uff1a<br>1\u3001 AXI4\uff1a\u9ad8\u6027\u80fd\u5b58\u50a8\u6620\u5c04\u63a5\u53e3\u3002<br>2\u3001 AXI4-Lite\uff1a\u7b80\u5316\u7248\u7684AXI4\u63a5\u53e3\uff0c\u7528\u4e8e\u8f83\u5c11\u6570\u636e\u91cf\u7684\u5b58\u50a8\u6620\u5c04\u901a\u4fe1\u3002<br>3\u3001 AXI4-Stream\uff1a\u7528\u4e8e\u9ad8\u901f\u6570\u636e\u6d41\u4f20\u8f93\uff0c\u975e\u5b58\u50a8\u6620\u5c04\u63a5\u53e3\u3002<\/p>\n\n\n\n<p>        \u5728\u8fd9\u91cc\u6211\u4eec\u9996\u5148\u89e3\u91ca\u4e00\u4e0b\u5b58\u50a8\u6620\u5c04\uff08Meamory Map\uff09\u8fd9\u4e00\u6982\u5ff5\u3002\u5982\u679c\u4e00\u4e2a\u534f\u8bae\u662f\u5b58\u50a8\u6620\u5c04\u7684\uff0c\u90a3\u4e48\u4e3b\u673a\u6240\u53d1\u51fa\u7684\u4f1a\u8bdd\uff08\u65e0\u8bba\u8bfb\u6216\u5199\uff09\u5c31\u4f1a\u6807\u660e\u4e00\u4e2a\u5730\u5740\u3002\u8fd9\u4e2a\u5730\u5740\u5bf9\u5e94\u4e8e\u7cfb\u7edf\u5b58\u50a8\u7a7a\u95f4\u4e2d\u7684\u4e00\u4e2a\u5730\u5740\uff0c\u8868\u660e\u662f\u9488\u5bf9\u8be5\u5b58\u50a8\u7a7a\u95f4\u7684\u8bfb\u5199\u64cd\u4f5c\u3002<\/p>\n\n\n\n<p>AXI4\u534f\u8bae\u652f\u6301\u7a81\u53d1\u4f20\u8f93\uff0c\u4e3b\u8981\u7528\u4e8e\u5904\u7406\u5668\u8bbf\u95ee\u5b58\u50a8\u5668\u7b49\u9700\u8981\u6307\u5b9a\u5730\u5740\u7684\u9ad8\u901f\u6570\u636e\u4f20\u8f93\u573a\u666f\u3002AXI-Lite\u4e3a\u5916\u8bbe\u63d0\u4f9b\u5355\u4e2a\u6570\u636e\u4f20\u8f93\uff0c\u4e3b\u8981\u7528\u4e8e\u8bbf\u95ee\u4e00\u4e9b\u4f4e\u901f\u5916\u8bbe\u4e2d\u7684\u5bc4\u5b58\u5668\u3002\u800cAXI-Stream\u63a5\u53e3\u5219\u50cfFIFO\u4e00\u6837\uff0c\u6570\u636e\u4f20\u8f93\u65f6\u4e0d\u9700\u8981\u5730\u5740\uff0c\u5728\u4e3b\u4ece\u8bbe\u5907\u4e4b\u95f4\u76f4\u63a5\u8fde\u7eed\u8bfb\u5199\u6570\u636e\uff0c\u4e3b\u8981\u7528\u4e8e\u5982\u89c6\u9891\u3001\u9ad8\u901fAD\u3001PCIe\u3001DMA\u63a5\u53e3\u7b49\u9700\u8981\u9ad8\u901f\u6570\u636e\u4f20\u8f93\u7684\u573a\u5408\u3002<\/p>\n\n\n\n<h2>AXI4\uff1a\u9ad8\u6027\u80fd\u5b58\u50a8\u6620\u5c04\u63a5\u53e3<\/h2>\n\n\n\n<p>AXI4\u63a5\u53e3\uff0c\u5b83\u7531\u4e94\u4e2a\u72ec\u7acb\u7684\u901a\u9053\u6784\u6210<\/p>\n\n\n\n<p>1\u3001 \u8bfb\u5730\u5740<br>2\u3001 \u8bfb\u6570\u636e<br>3\u3001 \u5199\u5730\u5740<br>4\u3001 \u5199\u6570\u636e<br>5\u3001 \u5199\u54cd\u5e94<br>\u4e0b\u9762\u662f\u4f7f\u7528\u8bfb\u5730\u5740\u548c\u8bfb\u6570\u636e\u901a\u9053\u5b9e\u73b0\u8bfb\u4f20\u8f93\u8fc7\u7a0b\u7684\u793a\u610f\u56fe\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-style-default\"><img loading=\"lazy\" width=\"1024\" height=\"403\" src=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-33-1024x403.png\" alt=\"\" class=\"wp-image-1242\" srcset=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-33-1024x403.png 1024w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-33-300x118.png 300w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-33-768x302.png 768w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-33.png 1345w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>       \u4ece\u56fe 15.1.1\u4e2d\u53ef\u4ee5\u770b\u5230\uff0c\u5728\u4e00\u4e2a\u8bfb\u4f20\u8f93\u8fc7\u7a0b\u4e2d\uff0c\u4e3b\u673a\u9996\u5148\u5728\u8bfb\u5730\u5740\u901a\u9053\u7ed9\u51fa\u8bfb\u5730\u5740\u548c\u63a7\u5236\u4fe1\u53f7\uff0c\u7136\u540e\u4ece\u673a\u7531\u8bfb\u6570\u636e\u901a\u9053\u8fd4\u56de\u8bfb\u51fa\u7684\u6570\u636e\u3002\u53e6\u5916\u6211\u4eec\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u8fd9\u662f\u4e00\u6b21\u7a81\u53d1\u8bfb\u64cd\u4f5c\uff0c\u4e3b\u673a\u53ea\u7ed9\u51fa\u4e00\u4e2a\u5730\u5740\uff0c\u4ece\u8be5\u5730\u5740\u8fde\u7eed\u7a81\u53d1\u8bfb\u51fa\u56db\u4e2a\u6570\u636e\u3002<\/p>\n\n\n\n<p>        \u5199\u4f20\u8f93\u8fc7\u7a0b\u5982\u56fe 15.1.2\u6240\u793a\uff0c\u5b83\u7528\u5230\u4e86\u5199\u5730\u5740\u3001\u5199\u6570\u636e\u548c\u5199\u54cd\u5e94\u4e09\u4e2a\u901a\u9053\u3002\u4e3b\u673a\u5728\u5199\u5730\u5740\u901a\u9053\u7ed9\u51fa\u5199\u5730\u5740\u548c\u63a7\u5236\u4fe1\u53f7\uff0c\u7136\u540e\u5728\u5199\u6570\u636e\u901a\u9053\u8fde\u7eed\u7a81\u53d1\u5199\u56db\u4e2a\u6570\u636e\u3002\u4ece\u673a\u5728\u63a5\u6536\u6570\u636e\u4e4b\u540e\uff0c\u5728\u5199\u54cd\u5e94\u901a\u9053\u7ed9\u51fa\u54cd\u5e94\u4fe1\u53f7\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-style-default\"><img loading=\"lazy\" width=\"1024\" height=\"562\" src=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-34-1024x562.png\" alt=\"\" class=\"wp-image-1244\" srcset=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-34-1024x562.png 1024w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-34-300x165.png 300w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-34-768x421.png 768w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-34.png 1378w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>AXI\u603b\u7ebf\u4e2d\u7684\u6bcf\u4e2a\u901a\u9053\u90fd\u5305\u542b\u4e86\u4e00\u7ec4\u4fe1\u606f\u4fe1\u53f7\uff0c\u8fd8\u6709\u4e00\u4e2aV ALID\u548c\u4e00\u4e2aREADY\u4fe1\u53f7\u3002V ALID\u4fe1\u53f7\u7531\u6e90\u7aef\uff08source\uff09\u4ea7\u751f\uff0c\u8868\u793a\u5f53\u524d\u5730\u5740\u6216\u8005\u6570\u636e\u7ebf\u4e0a\u7684\u4fe1\u606f\u662f\u6709\u6548\u7684\uff1b\u800cREADY\u4fe1\u53f7\u7531\u76ee\u7684\u7aef\uff08destination\uff09\u4ea7\u751f\uff0c\u5219\u8868\u793a\u5df2\u7ecf\u51c6\u5907\u597d\u63a5\u6536\u5730\u5740\u3001\u6570\u636e\u4ee5\u53ca\u63a7\u5236\u4fe1\u606f\u3002VALID\u548cREADY\u4fe1\u53f7\u63d0\u4f9b\u4e86AXI\u603b\u7ebf\u4e2d\u7684\u63e1\u624b\u673a\u5236\uff0c\u5982\u4e0b\u56fe\u6240\u793a\uff1a<\/p>\n\n\n\n<div class=\"wp-block-image is-style-default\"><figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" src=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-35-1024x484.png\" alt=\"\" class=\"wp-image-1245\" width=\"406\" height=\"192\" srcset=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-35-1024x484.png 1024w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-35-300x142.png 300w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-35-768x363.png 768w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-35.png 1078w\" sizes=\"(max-width: 406px) 100vw, 406px\" \/><\/figure><\/div>\n\n\n\n<p>ACLK\u4e3a\u65f6\u949f\u4fe1\u53f7\uff0c<strong>\u5728AXI\u534f\u8bae\u4e2d\uff0c\u6240\u6709\u7684\u8f93\u5165\u4fe1\u53f7\u90fd\u5728\u662fACLK\u7684\u4e0a\u5347\u6cbf\u91c7\u6837<\/strong>\uff0c\u6240<br>\u6709\u7684\u8f93\u51fa\u4fe1\u53f7\u5fc5\u987b\u5728ACLK\u7684\u4e0a\u5347\u6cbf\u4e4b\u540e\u624d\u80fd\u6539\u53d8\u3002\u5728T1\u4e4b\u540e\uff0c\u6e90\u7aef\u5c06V ALID\u62c9\u9ad8\uff0c\u8868\u660eINFORMA TION\u4fe1\u53f7\u7ebf\u4e0a\u4f20\u8f93\u7684\u662f\u6709\u6548\u7684\u5730\u5740\u3001\u6570\u636e\u6216\u8005\u63a7\u5236\u4fe1\u606f\u3002\u76ee\u7684\u7aef\u5728T2\u4e4b\u540e\u5c06READY\u62c9\u9ad8\uff0c\u8868\u660e\u5b83\u5df2\u7ecf\u51c6\u5907\u597d\u63a5\u6536\u6570\u636e\uff0c\u6b64\u65f6\u6e90\u7aef\u5fc5\u987b\u4fdd\u6301INFORMA TION\u6570\u636e\u7a33\u5b9a\u4e0d\u53d8\uff0c\u76f4\u5230T3\u65f6\u523b\u8fdb\u884c\u6570\u636e\u4f20\u8f93\u3002<br>      \u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u6e90\u7aef\u4e0d\u5141\u8bb8\u7b49\u76ee\u7684\u7aef\u7684READY\u4fe1\u53f7\u62c9\u9ad8\u4e4b\u540e\uff0c\u624d\u5c06V ALID\u4fe1\u53f7\u7f6e\u4e3a\u6709\u6548\u72b6\u6001\u3002\u800c\u4e14\uff0c\u4e00\u65e6V ALID\u62c9\u9ad8\uff0c\u6e90\u7aef\u5fc5\u987b\u4fdd\u6301\u5176\u5904\u4e8e\u6709\u6548\u72b6\u6001\uff0c\u76f4\u81f3\u6210\u529f\u63e1\u624b\uff08\u5728\u65f6\u949f\u4e0a\u5347\u6cbf\u68c0\u6d4b\u5230V ALID\u548cREADY\u540c\u65f6\u4e3a\u6709\u6548\u72b6\u6001\uff09\u3002<\/p>\n\n\n\n<p class=\"has-light-pink-background-color has-background\">        \u63a5\u4e0b\u6765\u901a\u8fc7\u81ea\u5b9a\u4e49\u4e00\u4e2aAXI4\u63a5\u53e3\u7684IP\u6838\uff0c\u901a\u8fc7AXI_HP\u63a5\u53e3\u5bf9PS\u7aefDDR3\u8fdb\u884c\u8bfb\u5199\u6d4b\u8bd5\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-style-default\"><img loading=\"lazy\" width=\"1024\" height=\"384\" src=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-36-1024x384.png\" alt=\"\" class=\"wp-image-1248\" srcset=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-36-1024x384.png 1024w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-36-300x112.png 300w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-36-768x288.png 768w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-36.png 1415w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>\u6211\u4eec\u5728PL\u5185\u81ea\u5b9a\u4e49\u7684DDR3 Test IP\u6838\u4f5c\u4e3a\u4e3b\u8bbe\u5907\uff0c\u901a\u8fc7PS AXI_HP0\u63a5\u53e3\uff0c\u4e0eDDR\u63a7\u5236\u5668\u8fdb\u884c\u901a\u4fe1\uff0c\u6700\u7ec8\u5bf9DDR3\u5b58\u50a8\u5668\u8fdb\u884c\u8bfb\u5199\u64cd\u4f5c\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-style-default\"><img loading=\"lazy\" width=\"1024\" height=\"300\" src=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-37-1024x300.png\" alt=\"\" class=\"wp-image-1250\" srcset=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-37-1024x300.png 1024w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-37-300x88.png 300w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-37-768x225.png 768w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-37.png 1402w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>SDK<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>1  #include &lt;stdio.h&gt; \n2  #include \"xil_cache.h\" \n3  #include \"xil_printf.h\" \n4  #include \"xil_io.h\" \n5   \n6  int main)() \n7  { \n8      int i; \n9      char c; \n10  \n11     Xil_DCacheDisable)(); \n12     print(\"AXI4 PL DDR TEST!\\n\\r\";); \n13  \n14     hlwhile(1{){ \n15         scanf(\"%c\"&amp;,&amp;c;); \n16         fif(c==='c'{){ \n17             printf(\"start\\n\\r\";); \n18             ofor(i=0;i&lt;4096;i=i+4{){ \n19                 printf(\"%d is %d\\n\",i(,(int)Xil_In32(0x10000000+i))); \n20             } \n21         } \n22     } \n23  \n24     eunreturn 0; \n25 } <\/code><\/pre>\n\n\n\n<h2>AXI4-Stream\u534f\u8bae<\/h2>\n\n\n\n<p>        AXI4-Stream\u534f\u8bae\u4e00\u822c\u88ab\u7ffb\u8bd1\u4e3aAXI\u6d41\u534f\u8bae\uff0c\u662fAXI\u603b\u7ebf\u7684\u4e00\u79cd\u6f14\u5316\u7248\u672c\u3002AXI4\u6d41\u534f\u8bae\u4f5c\u4e3a\u4e00\u4e2a\u6807\u51c6\u63a5\u53e3\uff0c\u7528\u4e8e\u8fde\u63a5\u8fdb\u884c\u6570\u636e\u4ea4\u6362\u7684\u7ec4\u4ef6\u3002\u63a5\u53e3\u53ef\u4ee5\u7528\u6765\u8fde\u63a5\u4e00\u4e2a\u5355\u4e00\u7684\u4e3b\u673a\uff0c\u4e3b\u673a\u5411\u63a5\u6536\u6570\u636e\u7684\u5355\u4e00\u4ece\u673a\u53d1\u9001\u6570\u636e\uff0c\u4e5f\u53ef\u7528\u4e8e\u8fde\u63a5\u82e5\u5e72\u4e2a\u4e3b\u673a\u548c\u4ece\u673a\u7684\u7ec4\u4ef6\u3002\u534f\u8bae\u652f\u6301\u5171\u7528\u4e00\u7ec4\u4fe1\u53f7\u7ebf\u7684\u591a\u4e2a\u6570\u636e\u6d41\uff0c\u5141\u8bb8\u6784\u5efa\u4e00\u4e2a\u901a\u7528\u4e92\u8054\u3002\u76f8\u6bd4\u4e8eAHB\/APB\uff0cAXI\u6d41\u534f\u8bae\u63d0\u51fa\u4e86\u6570\u636e\u5305\u3001\u6570\u636e\u5e27\u4ee5\u53ca\u4f20\u8f93\u64cd\u4f5c\u7b49\u6982\u5ff5\uff0c\u8fd9\u4e5f\u662f\u5176\u88ab\u79f0\u4e3a\u6d41\uff08Stream\uff09\u7684\u539f\u56e0\u3002<br>\u5173\u4e8eAXI Stream\u7684\u57fa\u672c\u6982\u5ff5\u89e3\u91ca\u5982\u4e0b\uff1a<br>        \u4f20\u8f93\uff08Transfer\uff09\uff1a\u901a\u8fc7 AXI4 \u6d41\u63a5\u53e3\u8fdb\u884c\u7684\u4e00\u4e2a\u5355\u4e00\u6570\u636e\u4f20\u8f93\u3002\u4e00\u4e2a\u5355\u4e00\u6570\u636e\u4f20\u8f93\u7531TV ALID\u548cTREADY\u63e1\u624b\u4fe1\u53f7\u5b9a\u4e49\u3002<br>        \u5305\uff08Packet\uff09\uff1a\u901a\u8fc7 AXI4 \u6d41\u63a5\u53e3\u88ab\u4e00\u8d77\u4f20\u8f93\u7684\u4e00\u7ec4\u5b57\u8282\uff0c\u5305\u7c7b\u4f3c\u4e8e AXI4 \u7684\u7a81\u53d1\u3002<br>        \u5e27\uff08Frame\uff09\uff1a\u4e00\u4e2a AXI4 \u6d41\u4e2d\u6700\u9ad8\u7ea7\u522b\u7684\u5b57\u8282\u7f16\u7ec4\u3002\u4e00\u5e27\u53ef\u4ee5\u5305\u542b\u5f88\u5927\u6570\u91cf\u7684\u5b57\u8282\u6570\uff0c\u4f8b\u5982\uff0c\u4e00\u4e2a\u5b8c\u6574\u7684\u89c6\u9891\u5e27\u7f13\u5b58\u3002<br>         \u6570\u636e\u6d41\uff08Data Stream\uff09\uff1a\u4ece\u4e00\u4e2a\u6e90\u8bbe\u5907\u5230\u4e00\u4e2a\u76ee\u6807\u8bbe\u5907\u4f20\u8f93\u7684\u6570\u636e\u3002<br>         \u4e24\u4e2a\u6a21\u5757\u4e4b\u95f4\u8fdb\u884c\u6570\u636e\u4f20\u8f93\uff0c\u9700\u8981\u4e8b\u5148\u7ea6\u5b9a\u597d\u8fd9\u4e24\u4e2a\u6a21\u5757\u4e4b\u95f4\u7684\u4f20\u8f93\u534f\u8bae\uff0c\u8fd9\u662f\u4e24\u4e2a\u4fe1\u53f7\u63e1\u624b\u7684\u6982\u5ff5\u3002TV ALID\u548cTREADY\u4fe1\u53f7\u7684\u63e1\u624b\u5305\u542b\u4e09\u79cd\u60c5\u51b5\uff1aTV ALID\u5148\u4e8e TREADY \u7684\u63e1\u624b\u3001TREADY\u5148\u4e8e TV ALID\u7684\u63e1\u624b\u3001TV ALID \u548c TREADY \u540c\u65f6\u53d1\u751f\u7684\u63e1\u624b\u3002<\/p>\n\n\n\n<p><strong>\u6ce8\u610f\u8be5\u534f\u8bae\u4e2d\u4f7f\u7528\u4e0a\u5347\u6cbf\u91c7\u6837<\/strong><br>        \u4e0b\u56fe\u4e2d\uff0c\u4e3b\u673a\u53d1\u51fa\u4e86\u6570\u636e\u548c\u63a7\u5236\u4fe1\u606f\u5e76\u5c06TV ALID \u4fe1\u53f7\u7f6e\u4e3a\u9ad8\u3002\u4e00\u65e6\u4e3b\u673a\u9a71\u52a8\u4e86 TV ALID \uff0c\u4e3b\u673a\u53d1\u51fa\u7684\u6570\u636e\u6216\u63a7\u5236\u4fe1\u606f\u5fc5\u987b\u4fdd\u6301\u4e0d\u53d8\uff0c\u76f4\u5230\u4ece\u673a\u9a71\u52a8 TREADY \u4fe1\u53f7\u4e3a\u9ad8\u8868\u793a\u53ef\u4ee5\u63a5\u6536\u6570\u636e\u548c\u63a7\u5236\u4fe1\u606f\u3002\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u4e00\u65e6\u4ece\u673a\u8bbe\u7f6e TREADY \u4e3a\u9ad8\uff0c\u4f20\u8f93\u5c31\u4f1a\u53d1\u751f\u3002\u7bad\u5934\u6807\u793a\u51fa\u4e86\u4f20\u8f93\u53d1\u751f\u7684\u4f4d\u7f6e\u3002<\/p>\n\n\n\n<div class=\"wp-block-image is-style-default\"><figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" src=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-38.png\" alt=\"\" class=\"wp-image-1255\" width=\"345\" height=\"164\" srcset=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-38.png 805w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-38-300x144.png 300w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-38-768x368.png 768w\" sizes=\"(max-width: 345px) 100vw, 345px\" \/><\/figure><\/div>\n\n\n\n<p>\u4e0b\u56fe\u4e2d\uff0c\u4ece\u673a\u5728\u6570\u636e\u548c\u63a7\u5236\u4fe1\u606f\u6709\u6548\u4e4b\u524d\u9a71\u52a8TREADY\u4e3a\u9ad8\u3002\u8fd9\u8868\u793a\u76ee\u6807\u8bbe\u5907\u53ef\u4ee5\u5728\u4e00\u4e2aACLK\u5468\u671f\u5185\u63a5\u6536\u6570\u636e\u548c\u63a7\u5236\u4fe1\u606f\u3002\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u4e00\u65e6\u4e3b\u673a\u9a71\u52a8 TV ALID \u4e3a\u9ad8\uff0c\u5219\u4f20\u8f93\u5c31\u4f1a\u53d1\u751f\u3002\u7bad\u5934\u6807\u793a\u51fa\u4e86\u4f20\u8f93\u53d1\u751f\u7684\u4f4d\u7f6e\u3002<\/p>\n\n\n\n<div class=\"wp-block-image is-style-default\"><figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" src=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-39.png\" alt=\"\" class=\"wp-image-1257\" width=\"307\" height=\"142\" srcset=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-39.png 774w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-39-300x140.png 300w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-39-768x358.png 768w\" sizes=\"(max-width: 307px) 100vw, 307px\" \/><\/figure><\/div>\n\n\n\n<p>\u4e0b\u56fe\u4e2d\uff0c\u4e3b\u673a\u9a71\u52a8TV ALID\u4e3a\u9ad8\uff0c\u4ece\u673a\u5728\u540c\u4e00\u65f6\u949f\uff08ACLK\uff09\u5468\u671f\u5185\u4e5f\u9a71\u52a8TREADY\u4e3a\u9ad8\u3002\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u5982\u56fe\u4e2d\u7bad\u5934\u6807\u6ce8\uff0c\u4f20\u8f93\u5728\u540c\u4e00\u5468\u671f\u5185\u53d1\u751f\u3002<\/p>\n\n\n\n<div class=\"wp-block-image is-style-default\"><figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" src=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-40.png\" alt=\"\" class=\"wp-image-1258\" width=\"364\" height=\"166\" srcset=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-40.png 746w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-40-300x137.png 300w\" sizes=\"(max-width: 364px) 100vw, 364px\" \/><\/figure><\/div>\n\n\n\n<p>\u672c\u6b21\u5b9e\u9a8c\u6211\u4eec\u9700\u8981\u4f7f\u7528Vivado HLS\u5de5\u5177\u751f\u6210\u5e26\u6709AXI4-Stream\u63a5\u53e3\u7684IP\u6838\uff0c\u5e76\u5c06\u6b64IP\u6838\u7684AXI4-Stream\u63a5\u53e3\u8fde\u63a5\u5230\u201cAXI4-Stream to Video Out\u201d\u6a21\u5757\u4e2d\u7684AXI4-Stream\u63a5\u53e3\uff0c\u5982\u4e0b\u56fe\u6240\u793a\uff1a<\/p>\n\n\n\n<div class=\"wp-block-image is-style-default\"><figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" src=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-41.png\" alt=\"\" class=\"wp-image-1262\" width=\"490\" height=\"360\" srcset=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-41.png 882w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-41-300x221.png 300w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-41-768x566.png 768w\" sizes=\"(max-width: 490px) 100vw, 490px\" \/><\/figure><\/div>\n\n\n\n<p>\u6211\u4eec\u91cd\u70b9\u5173\u6ce8\u56fe\u4e2d\u7684\u201cs_axis_video_tlast\u201d\u548c\u201cs_axis_video_tuser\u201d \u4fe1\u53f7\uff0c\u5176\u4e2d\u201cs_axis_video_tlast\u201d\u662fAXI4-Stream\u534f\u8bae\u4e2d\u201cTLAST\u201d\u4fe1\u53f7\uff0c\u8fd9\u4e2a\u4fe1\u53f7\u8bbe\u7f6e\u4e3a\u9ad8\u8868\u793a\u4e00\u884c\u50cf\u7d20\u4f20\u8f93\u7ed3\u675f\uff0c\u201cs_axis_video_tuser\u201d\u662fAXI4-Stream\u534f\u8bae\u4e2d\u7684\u201cTUSER\u201d\u4fe1\u53f7\uff0c\u8fd9\u4e2a\u4fe1\u53f7\u8bbe\u7f6e\u4e3a\u9ad8\u8868\u793a\u4e00\u5e27\u56fe\u50cf\u4f20\u8f93\u5f00\u59cb\u3002\u65f6\u5e8f\u56fe\u5982\u4e0b\u56fe\u6240\u793a\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-style-default\"><img loading=\"lazy\" width=\"1024\" height=\"290\" src=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-42-1024x290.png\" alt=\"\" class=\"wp-image-1264\" srcset=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-42-1024x290.png 1024w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-42-300x85.png 300w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-42-768x218.png 768w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-42.png 1457w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>\u56fe\u4e2d\u7684\u201cEOL\u201d\u8868\u793a\u201cEnd of line\u201d\u662f\u884c\u4f20\u8f93\u7ed3\u675f\u4fe1\u53f7\uff0c\u5b83\u5728\u4e00\u884c\u56fe\u50cf\u50cf\u7d20\u4f20\u8f93\u7ed3\u675f\u7684\u65f6\u5019\u62c9\u9ad8\u4e00\u4e2a\u65f6\u949f\u5468\u671f\uff1b\u56fe\u4e2d\u7684\u201cSOF\u201d\u8868\u793a\u201cStart of frame\u201d\u662f\u5e27\u4f20\u8f93\u5f00\u59cb\u4fe1\u53f7\u3002\u5b83\u5728\u4e00\u5e27\u56fe\u50cf\u50cf\u7d20\u4f20\u8f93\u5f00\u59cb\u7684\u65f6\u5019\u62c9\u9ad8\u4e00\u4e2a\u65f6\u949f\u5468\u671f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>ZYNQ\u5c06\u9ad8\u6027\u80fdARM Cotex-A\u7cfb\u5217\u5904\u7406\u5668\u4e0e\u9ad8\u6027\u80fdFPGA\u5728\u5355\u82af\u7247\u5185\u7d27\u5bc6\u7ed3\u5408\uff0c\u4e3a\u8bbe\u8ba1\u5e26\u6765\u4e86\u5982\u51cf\u5c0f\u4f53\u79ef\u548c\u529f &hellip; <a href=\"http:\/\/139.9.1.231\/index.php\/2022\/01\/04\/axi4\/\" class=\"more-link\">\u7ee7\u7eed\u9605\u8bfb<span class=\"screen-reader-text\">AXI4\u534f\u8bae<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[13],"tags":[],"_links":{"self":[{"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/posts\/1237"}],"collection":[{"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/comments?post=1237"}],"version-history":[{"count":17,"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/posts\/1237\/revisions"}],"predecessor-version":[{"id":1265,"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/posts\/1237\/revisions\/1265"}],"wp:attachment":[{"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/media?parent=1237"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/categories?post=1237"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/tags?post=1237"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}