{"id":1127,"date":"2022-01-03T17:35:28","date_gmt":"2022-01-03T09:35:28","guid":{"rendered":"http:\/\/139.9.1.231\/?p=1127"},"modified":"2022-01-04T09:54:35","modified_gmt":"2022-01-04T01:54:35","slug":"pspl","status":"publish","type":"post","link":"http:\/\/139.9.1.231\/index.php\/2022\/01\/03\/pspl\/","title":{"rendered":"PS\u548cPL\u7684\u4ea4\u4e92\u65b9\u5f0f\u6c47\u603b"},"content":{"rendered":"\n<p>         \u6700\u8fd1\u6709\u4e2a\u9879\u76ee\u5173\u4e8eFPGA\u52a0\u901f\u795e\u7ecf\u7f51\u7edc\uff0c\u56e0\u6b64\u9700\u8981\u4e86\u89e3\u76f8\u5173PS\u548cpl\u4ea4\u4e92\u7684\u65b9\u6cd5\uff0c\u4ece\u800c\u5c06\u6743\u91cd\u6570\u636e\u5b58\u653e\u5728PS\u7684DDR\u4e2d \uff0c\u5e76\u5728\u9700\u8981\u65f6\u5b8c\u6210\u6570\u636e\u7684\u5b58\u5165\u548c\u8bfb\u51fa\u3002\u8fd9\u662f\u4e00\u7bc7\u5f52\u7eb3\u6027\u7684\u6587\u7ae0\uff0c\u5177\u4f53\u7684\u8fd8\u9700\u8981\u81ea\u884c\u67e5\u9605\u8d44\u6599\u3002<\/p>\n\n\n\n<div class=\"wp-block-image is-style-default\"><figure class=\"aligncenter size-large\"><img src=\"https:\/\/w.wallhaven.cc\/full\/8o\/wallhaven-8ogod1.jpg\" alt=\"\"\/><figcaption>https:\/\/wallhaven.cc\/<\/figcaption><\/figure><\/div>\n\n\n\n<h2>PS-PL\u6570\u636e\u4ea4\u4e92\u65b9\u5f0f<\/h2>\n\n\n\n<p>1\u3001IO<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th><br>\u4e2a\u6570<\/th><th>\u5206\u5e03<\/th><th>\u63a7\u5236<\/th><\/tr><\/thead><tbody><tr><td>MIO<\/td><td>54<\/td><td>BANK0, 1<\/td><td>PS\u76f4\u63a5\u63a7\u5236<\/td><\/tr><tr><td>EMIO<\/td><td>64<\/td><td>BANK2, 3<\/td><td>\u9700\u8981PL\u914d\u7f6e\u5f15\u811a<\/td><\/tr><tr><td>GPIO<\/td><td><\/td><td><\/td><td>AXI-GPIO<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"has-light-pink-background-color has-background\"> MIO \uff1aZYNQ \u5206\u4e3a PS \u548c PL \u4e24\u90e8\u5206\uff0c\u90a3\u4e48\u5668\u4ef6\u7684\u5f15\u811a\uff08Pin\uff09\u8d44\u6e90\u540c\u6837\u4e5f\u5206\u6210\u4e86\u4e24\u90e8\u5206\u3002ZYNQ PS \u4e2d\u7684\u5916\u8bbe\u53ef\u4ee5\u901a\u8fc7 MIO\uff08Multiuse I\/O\uff0c\u591a\u7528\u8f93\u5165\/\u8f93\u51fa\uff09\u6a21\u5757\u8fde\u63a5\u5230 PS \u7aef\u7684\u5f15\u811a\u4e0a\uff0c\u4e5f\u53ef\u4ee5\u901a\u8fc7 EMIO \u8fde\u63a5\u5230 PL \u7aef\u7684\u5f15\u811a\u3002Zynq-7000 \u7cfb\u5217\u82af\u7247\u4e00\u822c\u6709 54 \u4e2a MIO\uff0c\u4e2a\u522b\u82af\u7247\u5982 7z007s \u53ea\u6709 32 \u4e2a\u3002<\/p>\n\n\n\n<p class=\"has-light-pink-background-color has-background\"> EMIO :  PS \u548c\u5916\u90e8\u8bbe\u5907\u4e4b\u95f4\u7684\u901a\u4fe1\u4e3b\u8981\u662f\u901a\u8fc7\u590d\u7528\u7684\u8f93\u5165\/\u8f93\u51fa\uff08Multiplexed Input\/Output\uff0cMIO\uff09\u5b9e\u73b0\u7684\u3002\u9664\u6b64\u4e4b\u5916\uff0cPS \u8fd8\u53ef\u4ee5\u901a\u8fc7\u6269\u5c55\u7684 MIO\uff08Extended MIO\uff0cEMIO\uff09\u6765\u5b9e\u73b0\u4e0e\u5916\u90e8\u8bbe\u5907\u7684\u8fde\u63a5\u3002EMIO \u4f7f\u7528\u4e86 PL \u7684I\/O \u8d44\u6e90\uff0c\u5f53 PS \u9700\u8981\u6269\u5c55\u8d85\u8fc7 54 \u4e2a\u5f15\u811a\u7684\u65f6\u5019\u53ef\u4ee5\u7528 EMIO\uff0c\u4e5f\u53ef\u4ee5\u7528\u5b83\u6765\u8fde\u63a5 PL \u4e2d\u5b9e\u73b0\u7684 IP \u6a21\u5757\u3002<\/p>\n\n\n\n<p class=\"has-light-pink-background-color has-background\">\u5728\u5927\u591a\u6570\u60c5\u51b5\u4e0b\uff0cPS \u7aef\u7ecf\u7531 EMIO \u5f15\u51fa\u7684\u63a5\u53e3\u4f1a\u76f4\u63a5\u8fde\u63a5\u5230 PL \u7aef\u7684\u5668\u4ef6\u5f15\u811a\u4e0a\uff0c\u901a\u8fc7 IO \u7ba1\u811a\u7ea6\u675f\u6765\u6307\u5b9a\u6240\u8fde\u63a5 PL \u5f15\u811a\u7684\u4f4d\u7f6e\u3002\u901a\u8fc7\u8fd9\u79cd\u65b9\u5f0f\uff0cEMIO \u53ef\u4ee5\u4e3a PS \u7aef\u5b9e\u73b0\u989d\u5916\u7684 64 \u4e2a\u8f93\u5165\u5f15\u811a\u6216 64 \u4e2a\u5e26\u6709\u8f93\u51fa\u4f7f\u80fd\u7684\u8f93\u51fa\u5f15\u811a\u3002<strong>EMIO \u8fd8\u6709\u4e00\u79cd\u4f7f\u7528\u65b9\u5f0f\uff0c\u5c31\u662f\u7528\u4e8e\u8fde\u63a5 PL \u5185\u5b9e\u73b0\u7684\u529f\u80fd\u6a21\u5757\uff08IP \u6838\uff09<\/strong>\uff0c\u6b64\u65f6 PL \u7aef\u7684 IP \u4f5c\u4e3a PS \u7aef\u7684\u4e00\u4e2a\u5916\u90e8\u8bbe\u5907\u3002<strong>\uff08EMIO\u65e2\u53ef\u4ee5\u5c06ps\u548cpl\u7aef\u7684\u5f15\u811a\u76f8\u8fde\uff0c\u4e5f\u53ef\u4ee5\u548cpl\u4e2d\u7684\u6a21\u5757\u76f8\u8fde\uff09<\/strong><\/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-6.png\" alt=\"\" class=\"wp-image-1130\" width=\"403\" height=\"256\" srcset=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-6.png 613w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-6-300x190.png 300w\" sizes=\"(max-width: 403px) 100vw, 403px\" \/><\/figure><\/div>\n\n\n\n<p class=\"has-medium-pink-color has-light-gray-background-color has-text-color has-background\">        <strong>PS \u4e0e PL \u6700\u4e3b\u8981\u7684\u8fde\u63a5\u65b9\u5f0f\u5219\u662f\u4e00\u7ec4 AXI \u63a5\u53e3<\/strong>\u3002AXI \u4e92\u8054\u548c\u63a5\u53e3\u4f5c\u4e3a ZYNQ PS \u548c PL \u4e4b\u95f4\u7684\u6865\u6881\uff0c\u80fd\u591f\u4f7f\u4e24\u8005\u534f\u540c\u5de5\u4f5c\uff0c\u8fdb\u800c\u5f62\u6210\u4e00\u4e2a\u5b8c\u6574\u7684\u3001\u9ad8\u5ea6\u96c6\u6210\u7684\u7cfb\u7edf\u3002<\/p>\n\n\n\n<p class=\"has-bright-blue-background-color has-background\"> GPIO \uff1a    <strong>AXI GPIO IP \u6838\u4e3a AXI \u63a5\u53e3\u63d0\u4f9b\u4e86\u4e00\u4e2a\u901a\u7528\u7684\u8f93\u5165\/\u8f93\u51fa\u63a5\u53e3\u3002<\/strong>\u4e0e PS \u7aef\u7684 GPIO \u4e0d\u540c\uff0cAXI GPIO \u662f\u4e00\u4e2a\u8f6f\u6838\uff08Soft IP\uff09\uff0c\u5373 ZYNQ \u82af\u7247\u5728\u51fa\u5382\u65f6\u5e76\u4e0d\u5b58\u5728\u8fd9\u6837\u7684\u4e00\u4e2a\u786c\u4ef6\u7535\u8def\uff0c\u800c\u662f\u7531\u7528\u6237\u901a\u8fc7\u914d\u7f6e PL \u7aef\u7684\u903b\u8f91\u8d44\u6e90\u6765\u5b9e\u73b0\u7684\u4e00\u4e2a\u529f\u80fd\u6a21\u5757\u3002\u800c PS \u7aef\u7684 GPIO \u662f\u4e00\u4e2a\u786c\u6838\uff08Hard IP\uff09\uff0c\u5b83\u662f\u4e00\u4e2a\u751f\u4ea7\u65f6\u5728\u7845\u7247\u4e2d\u5b9e\u73b0\u7684\u529f\u80fd\u7535\u8def\u3002  <strong>AXI GPIO IP <\/strong> \u6a21\u5757\u7684\u5de6\u4fa7\u5b9e\u73b0\u4e86\u4e00\u4e2a 32 \u4f4d\u7684 AXI4-Lite \u4ece\u63a5\u53e3\uff0c\u7528\u4e8e\u4e3b\u673a\u8bbf\u95ee AXI GPIO \u5185\u90e8\u5404\u901a\u9053\u7684\u5bc4\u5b58\u5668\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized is-style-default\"><img loading=\"lazy\" src=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-8.png\" alt=\"\" class=\"wp-image-1137\" width=\"691\" height=\"497\" srcset=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-8.png 774w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-8-300x216.png 300w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-8-768x553.png 768w\" sizes=\"(max-width: 691px) 100vw, 691px\" \/><figcaption>AXI GPIO \u6846\u56fe<\/figcaption><\/figure>\n\n\n\n<h2>\u4e2d\u65ad<\/h2>\n\n\n\n<p>\u53c2\u8003\uff1a<\/p>\n\n\n\n<p><a href=\"https:\/\/blog.csdn.net\/wangjie36\/article\/details\/116081755\">https:\/\/blog.csdn.net\/wangjie36\/article\/details\/116081755<\/a><\/p>\n\n\n\n<p class=\"has-light-gray-background-color has-background\">\u4e2d\u65ad\u662f\u4e00\u79cd\u5f53\u6ee1\u8db3\u8981\u6c42\u7684\u7a81\u53d1\u4e8b\u4ef6\u53d1\u751f\u65f6\u901a\u77e5\u5904\u7406\u5668\u8fdb\u884c\u5904\u7406\u7684\u4fe1\u53f7\u3002\u4e2d\u65ad\u53ef\u4ee5\u7531\u786c\u4ef6\u5904\u7406\u5355\u5143\u548c\u5916\u90e8\u8bbe\u5907\u4ea7\u751f\uff0c\u4e5f\u53ef\u4ee5\u7531\u8f6f\u4ef6\u672c\u8eab\u4ea7\u751f\u3002\u5bf9\u786c\u4ef6\u6765\u8bf4\uff0c\u4e2d\u65ad\u4fe1\u53f7\u662f\u4e00\u4e2a\u7531\u67d0\u4e2a\u5904\u7406\u5355\u5143\u4ea7\u751f\u7684\u5f02\u6b65\u4fe1\u53f7\uff0c\u7528\u6765\u5f15\u8d77\u5904\u7406\u5668\u7684\u6ce8\u610f\u3002\u5bf9\u8f6f\u4ef6\u6765\u8bf4\uff0c\u4e2d\u65ad\u8fd8\u662f\u4e00\u79cd\u5f02\u6b65\u4e8b\u4ef6\uff0c\u7528\u6765\u901a\u77e5\u5904\u7406\u5668\u9700\u8981\u6539\u53d8\u4ee3\u7801\u7684\u6267\u884c\uff0c\u4e0d\u8fc7\uff0c\u8f6e\u8be2\u6240\u4ea7\u751f\u7684\u4e2d\u65ad\u7684\u8fc7\u7a0b\u662f\u540c\u6b65\u7684\u3002<\/p>\n\n\n\n<p class=\"has-light-gray-background-color has-background\">Zynq \u82af\u7247\u7684 PS \u90e8\u5206\u662f\u57fa\u4e8e\u4f7f\u7528\u53cc\u6838 Cortex-A9 \u5904\u7406\u5668\u548c GIC pl390 \u4e2d\u65ad\u63a7\u5236\u5668\u7684 ARM \u67b6\u6784\u3002\u4e2d\u65ad\u7ed3\u6784\u4e0e CPU \u7d27\u5bc6\u94fe\u63a5\uff0c\u5e76\u63a5\u53d7\u6765\u81ea I\/O \u5916\u8bbe\uff08IOP\uff09\u548c\u53ef\u7f16\u7a0b\u903b\u8f91\uff08PL\uff09\u7684\u4e2d\u65ad\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-style-default\"><img loading=\"lazy\" width=\"778\" height=\"572\" src=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-9.png\" alt=\"\" class=\"wp-image-1138\" srcset=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-9.png 778w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-9-300x221.png 300w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-9-768x565.png 768w\" sizes=\"(max-width: 778px) 100vw, 778px\" \/><figcaption>\u4e2d\u65ad\u63a7\u5236\u5668\u67b6\u6784\u56fe<\/figcaption><\/figure>\n\n\n\n<p>ZYNQ CPU \u8f6f\u4ef6\u4e2d\u65ad\uff08SGI\uff0cSoftware generatedinterrupts\uff09\uff1aZYNQ \u5171\u6709\u4e24\u4e2a CPU\uff0c\u6bcf\u4e2a CPU \u5177\u5907\u5404\u81ea\u7684 16 \u4e2a\u8f6f\u4ef6\u4e2d\u65ad\uff08\u4e2d\u65ad\u53f70-15\uff09\uff0816\u201326 reserved\uff09\uff1a\u88ab\u8def\u7531\u5230\u4e00\u4e2a\u6216\u8005\u4e24\u4e2aCPU\u4e0a\uff0c\u901a\u8fc7\u5199ICDSGIR\u5bc4\u5b58\u5668\u4ea7\u751fSGI\u3002<\/p>\n\n\n\n<p>CPU\u79c1\u6709\u5916\u8bbe\u4e2d\u65ad\uff08PPI\uff0cprivate peripheralinterrupts \uff09\uff1a\u79c1\u6709\u4e2d\u65ad\u662f\u56fa\u5b9a\u7684\u4e0d\u80fd\u4fee\u6539\u3002\u8fd9\u91cc\u6709 2 \u4e2a PL \u5230 CPU \u7684\u5feb\u901f\u4e2d\u65ad nFIQ\uff08\u4e2d\u65ad\u53f727-31\uff09\uff1a\u6bcf\u4e2aCPU\u90fd\u6709\u4e00\u7ec4PPI\uff0c\u5305\u62ec\u5168\u5c40\u5b9a\u65f6\u5668\u3001\u79c1\u6709\u770b\u95e8\u72d7\u5b9a\u65f6\u5668\u3001\u79c1\u6709\u5b9a\u65f6\u5668\u548c\u6765\u81eaPL\u7684FIQ\/IRQ\u3002<\/p>\n\n\n\n<p>ZYNQ PS \u548c PL \u5171\u4eab\u4e2d\u65ad\uff08SPI\uff0cshared peripheralinterrupts\uff09\uff1a\u5171\u4eab\u4e2d\u65ad\u5c31\u662f\u4e00\u4e9b\u7aef\u53e3\u5171\u7528\u4e00\u4e2a\u4e2d\u65ad\u8bf7\u6c42\u7ebf\uff1a\uff08\u4e2d\u65ad\u53f732-95\uff09\u3002\u7531PS\u548cPL\u4e0a\u7684\u5404\u79cdI\/O\u63a7\u5236\u5668\u548c\u5b58\u50a8\u5668\u63a7\u5236\u5668\u4ea7\u751f\uff0c\u8fd9\u4e9b\u4e2d\u65ad\u4fe1\u53f7\u88ab\u8def\u7531\u5230\u76f8\u5e94\u7684CPU\uff0c PL\u90e8\u5206\u670916\u4e2a\u5171\u4eab\u4e2d\u65ad\uff0c\u5b83\u4eec\u7684\u89e6\u53d1\u65b9\u5f0f\u53ef\u4ee5\u8bbe\u7f6e\u3002<\/p>\n\n\n\n<h2>FIFO<\/h2>\n\n\n\n<p><a href=\"https:\/\/zhuanlan.zhihu.com\/p\/47847664\">https:\/\/zhuanlan.zhihu.com\/p\/47847664<\/a><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>FIFO\u7c7b\u578b<\/th><th>\u8bfb\u63a5\u53e3<\/th><th>\u5199\u63a5\u53e3<\/th><\/tr><\/thead><tbody><tr><td>AXI Data FIFO<\/td><td>AXI4-full<\/td><td>AXI4-full<\/td><\/tr><tr><td>AXI-Stream FIFO<\/td><td>PS axi4-lite<\/td><td>PL axi-stream<\/td><\/tr><tr><td>AXI4-Stream Data FIFO<\/td><td>axi-stream<\/td><td>axi-stream<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u901a\u8fc7<code>AXI-Stream FIFO<\/code>\u5b8c\u6210PS\u548cPL\u90e8\u5206\u7684\u6570\u636e\u4ea4\u4e92<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-style-default\"><img loading=\"lazy\" width=\"1024\" height=\"505\" src=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-10-1024x505.png\" alt=\"\" class=\"wp-image-1139\" srcset=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-10-1024x505.png 1024w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-10-300x148.png 300w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-10-768x379.png 768w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-10.png 1380w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<ul><li>S_AXI, PS\u8bfb\u5199FIFO\u6570\u636e\u63a5\u53e3<\/li><li>AXI_STR_TXC, \u53d1\u9001\u63a7\u5236\u7aef\u53e3<\/li><li>AXI_STR_TXD\uff0c\u53d1\u9001\u6570\u636e\u7aef\u53e3<\/li><li>AXI_STR_RXD\uff0c\u63a5\u6536\u6570\u636e\u7aef\u53e3<\/li><\/ul>\n\n\n\n<figure class=\"wp-block-image size-large is-style-default\"><img loading=\"lazy\" width=\"1024\" height=\"382\" src=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-11-1024x382.png\" alt=\"\" class=\"wp-image-1140\" srcset=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-11-1024x382.png 1024w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-11-300x112.png 300w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-11-768x287.png 768w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-11.png 1388w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>\u8bfb\u5199fifo\u4f8b\u7a0b:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\u5199fifo\n\n\/\/write fifo us1\nalways@(posedge  wrclk, negedge sys_reset_n_i)\nbegin\n    if (!sys_reset_n_i)\n    begin\n        fifo_wrreq_ddr3_us &lt;= 0 ;\n        fifo_data_ddr3_us &lt;= 0 ;\n    end\n    else\n    begin\n        if(fifo_prog_full_ddr3_us!= 1) \n            fifo_wrreq_ddr3_us &lt;= 1 ;\n        else\n            fifo_wrreq_ddr3_us &lt;= 0 ;        \n        if(fifo_wrreq_ddr3_us == 1) \n         begin            \n             if(fifo_data_ddr3_us &lt; 64'b1111_1111_1111_1111_1111_1111)\n                fifo_data_ddr3_us &lt;=fifo_data_ddr3_us + 1 ;                  \n             else \n                 fifo_data_ddr3_us &lt;= 0  ; \n         end  \n         else\n             fifo_data_ddr3_us &lt;= fifo_data_ddr3_us ;                \n    end\nend\nendmodule\n\n\u8bfbfifo\n\nassign fifo_rdreq_ddr3_ds = !fifo_empty_ddr3_ds;\n\nalways@(posedge sys_clk_i,negedge sys_reset_n_i)\nbegin\n    if(!sys_reset_n_i)\n         rd_ck_flag_cp&lt;= 1'b0;\n    else\n    begin\n        if (fifo_q_ddr3_ds_r!==fifo_q_ddr3_ds)\n            rd_ck_flag_cp&lt;= 1'b1;  \n        else\n            rd_ck_flag_cp&lt;= 1'b0;\n    end    \nend\n \/\/jiao yan cuo wu ji shu    jiao yan wei zi zeng       \nalways@(posedge sys_clk_i,negedge sys_reset_n_i)\nbegin\n    if(!sys_reset_n_i)\n    begin\n         rd_ck_cnt &lt;= 64'b0;\n         fifo_q_ddr3_ds_r &lt;= 64'b0 ;  \n    end\n    else  \n    begin\n        if(rd_ck_flag_cp==1)\n            rd_ck_cnt &lt;=rd_ck_cnt+1'b1;\n        else\n            rd_ck_cnt &lt;= rd_ck_cnt;\n             \n         if ( ( fifo_rdreq_ddr3_ds==1 ) &amp;&amp; (fifo_q_ddr3_ds_r &lt; 64'b1111_1111_1111_1111_1111_1111) )\n            \n             fifo_q_ddr3_ds_r &lt;= fifo_q_ddr3_ds_r + 1'b1 ; \n         else\n             fifo_q_ddr3_ds_r &lt;= 64'b0; \n     end\nend\n\nendmodule<\/code><\/pre>\n\n\n\n<h2> BRAM <\/h2>\n\n\n\n<p class=\"has-light-gray-background-color has-background\">\u5728 ZYNQ SOC \u5f00\u53d1\u8fc7\u7a0b\u4e2d\uff0cPL \u548c PS \u4e4b\u95f4\u7ecf\u5e38\u9700\u8981\u505a\u6570\u636e\u4ea4\u4e92\u3002\u5bf9\u4e8e\u4f20\u8f93\u901f\u5ea6\u8981\u6c42\u8f83\u9ad8\u3001\u6570\u636e\u91cf\u5927\u3001\u5730\u5740\u8fde\u7eed\u7684\u573a\u5408\uff0c\u53ef\u4ee5\u901a\u8fc7 AXI DMA \u6765\u5b8c\u6210\u3002\u800c\u5bf9\u4e8e\u6570\u636e\u91cf\u8f83\u5c11\u3001\u5730\u5740\u4e0d\u8fde\u7eed\u3001\u957f\u5ea6\u4e0d\u89c4\u5219\u7684\u60c5\u51b5\uff0c\u6b64\u65f6 AXIDMA \u4fbf\u4e0d\u518d\u9002\u7528\u4e86\u3002\u9488\u5bf9\u8fd9\u79cd\u60c5\u51b5\uff0c\u53ef\u4ee5\u901a\u8fc7 BRAM \u6765\u8fdb\u884c\u6570\u636e\u7684\u4ea4\u4e92\u3002<\/p>\n\n\n\n<p class=\"has-light-pink-background-color has-background\">BRAM\uff08Block RAM\uff09\u662f PL \u90e8\u5206\u7684\u5b58\u50a8\u5668\u9635\u5217\uff0cPS \u548c PL \u901a\u8fc7\u5bf9 BRAM \u8fdb\u884c\u8bfb\u5199\u64cd\u4f5c\uff0c\u6765\u5b9e\u73b0\u6570\u636e\u7684\u4ea4\u4e92\u3002\u5728 PL \u4e2d\uff0c\u901a\u8fc7\u8f93\u51fa\u65f6\u949f\u3001\u5730\u5740\u3001\u8bfb\u5199\u63a7\u5236\u7b49\u4fe1\u53f7\u6765\u5bf9 BRAM \u8fdb\u884c\u8bfb\u5199\u64cd\u4f5c\uff1b\u800c\u5728 PS \u4e2d\uff0c\u5904\u7406\u5668\u5e76\u4e0d\u9700\u8981\u76f4\u63a5\u9a71\u52a8 BRAM \u7684\u7aef\u53e3\uff0c\u800c\u662f\u901a\u8fc7 AXI BRAM \u63a7\u5236\u5668\u6765\u5bf9 BRAM \u8fdb\u884c\u8bfb\u5199\u64cd\u4f5c\u3002AXI BRAM \u63a7\u5236\u5668\u662f\u96c6\u6210\u5728 Vivado \u8bbe\u8ba1\u8f6f\u4ef6\u4e2d\u7684\u8f6f\u6838\uff0c\u53ef\u4ee5\u914d\u7f6e\u6210 AXI4-lite \u63a5\u53e3\u6a21\u5f0f\u6216\u8005 AXI4 \u63a5\u53e3\u6a21\u5f0f\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-style-default\"><img loading=\"lazy\" width=\"801\" height=\"476\" src=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-12.png\" alt=\"\" class=\"wp-image-1141\" srcset=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-12.png 801w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-12-300x178.png 300w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-12-768x456.png 768w\" sizes=\"(max-width: 801px) 100vw, 801px\" \/><\/figure>\n\n\n\n<p class=\"has-light-gray-background-color has-background\">AXI4 \u63a5\u53e3\u6a21\u5f0f\u7684 BRAM \u63a7\u5236\u5668\u652f\u6301\u7684\u6570\u636e\u4f4d\u5bbd\u4e3a 32 \u4f4d\u300164 \u4f4d\u3001128 \u4f4d\u3001512 \u4f4d\u548c 1024 \u4f4d\uff0c\u800c AXI4-Lite \u63a5\u53e3\u4ec5\u652f\u6301 32 \u4f4d\u6570\u636e\u4f4d\u5bbd\u3002\u7531\u56fe 14.1.1 \u53ef\u77e5\uff0cPS \u901a\u8fc7 AXI4-Lite \u63a5\u53e3\u8bbf\u95ee BRAM\uff0c\u5f53\u4f7f\u80fd ECC \u9009\u9879\u65f6\uff0cECC \u5141\u8bb8 AXI \u4e3b\u63a5\u53e3\u68c0\u6d4b\u548c\u7ea0\u6b63 BRAM \u5757\u4e2d\u7684\u5355\u4f4d\u548c\u53cc\u4f4d\u9519\u8bef\u3002AXI BRAM \u63a7\u5236\u5668\u4f5c\u4e3a AXI \u603b\u7ebf\u7684\u4ece\u63a5\u53e3\uff0c\u548c AXI \u4e3b\u63a5\u53e3\u5b9e\u73b0\u4e92\u8054\uff0c\u6765\u5bf9 BRAM \u8fdb\u884c\u8bfb\u5199\u64cd\u4f5c\u3002\u9488\u5bf9\u4e0d\u540c\u7684\u5e94\u7528\u573a\u5408\uff0c\u8be5 IP \u6838\u652f\u6301\u5355\u6b21\u4f20\u8f93\u548c\u7a81\u53d1\u4f20\u8f93\u4e24\u79cd\u65b9\u5f0f\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-style-default\"><img loading=\"lazy\" width=\"955\" height=\"416\" src=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-13.png\" alt=\"\" class=\"wp-image-1142\" srcset=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-13.png 955w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-13-300x131.png 300w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-13-768x335.png 768w\" sizes=\"(max-width: 955px) 100vw, 955px\" \/><\/figure>\n\n\n\n<p class=\"has-light-pink-background-color has-background\">PS \u7aef\u7684 M_AXI_GP0 \u4f5c\u4e3a\u4e3b\u7aef\u53e3\uff0c\u4e0e PL \u7aef\u7684 AXI BRAM \u63a7\u5236\u5668 IP \u6838\u548c PL \u8bfb BRAMIP \u6838\uff08pl_bram_rd\uff09\u901a\u8fc7 AXI4 \u603b\u7ebf\u8fdb\u884c\u8fde\u63a5\u3002\u5176\u4e2d\uff0cAXI \u4e92\u8054 IP\uff08AXI Interconnect\uff09\u7528\u4e8e\u8fde\u63a5 AXI \u5b58\u50a8\u5668\u6620\u5c04\uff08memory-mapped\uff09\u7684\u4e3b\u5668\u4ef6\u548c\u4ece\u5668\u4ef6\uff1bAXI BRAM \u63a7\u5236\u5668\u4f5c\u4e3a PS \u7aef\u8bfb\u5199 BRAM \u7684 IP \u6838\uff1bPL \u8bfbBRAM IP \u6838\u662f\u6211\u4eec\u81ea\u5b9a\u4e49\u7684 IP \u6838\uff0c\u5b9e\u73b0\u4e86 PL \u7aef\u4ece BRAM \u4e2d\u8bfb\u51fa\u6570\u636e\u7684\u529f\u80fd\uff0c\u9664\u6b64\u4e4b\u5916\uff0cPS \u7aef\u901a\u8fc7 AXI\u603b\u7ebf\u6765\u914d\u7f6e\u8be5 IP \u6838\u8bfb\u53d6 BRAM \u7684\u8d77\u59cb\u5730\u5740\u548c\u4e2a\u6570\u7b49\u3002<\/p>\n\n\n\n<h2>DMA<\/h2>\n\n\n\n<p class=\"has-light-gray-background-color has-background\">DMA(Direct Memory Access\uff0c\u76f4\u63a5\u5b58\u50a8\u5668\u8bbf\u95ee)\u662f\u8ba1\u7b97\u673a\u79d1\u5b66\u4e2d\u7684\u4e00\u79cd\u5185\u5b58\u8bbf\u95ee\u6280\u672f\u3002\u5b83\u5141\u8bb8\u67d0\u4e9b\u8ba1\u7b97\u673a\u5185\u90e8\u7684\u786c\u4ef6\u5b50\u7cfb\u7edf\u53ef\u4ee5\u72ec\u7acb\u5730\u76f4\u63a5\u8bfb\u5199\u7cfb\u7edf\u5185\u5b58\uff0c\u800c\u4e0d\u9700\u4e2d\u592e\u5904\u7406\u5668\uff08CPU\uff09\u4ecb\u5165\u5904\u7406\u3002DMA \u662f\u4e00\u79cd\u5feb\u901f\u7684\u6570\u636e\u4f20\u9001\u65b9\u5f0f\uff0c\u901a\u5e38\u7528\u6765\u4f20\u9001\u6570\u636e\u91cf\u8f83\u591a\u7684\u6570\u636e\u5757\uff0c\u5f88\u591a\u786c\u4ef6\u7cfb\u7edf\u4f1a\u4f7f\u7528 DMA\uff0c\u5305\u62ec\u786c\u76d8\u63a7\u5236\u5668\u3001\u7ed8\u56fe\u663e\u5361\u3001\u7f51\u5361\u548c\u58f0\u5361\uff0c\u5728\u4f7f\u7528\u9ad8\u901f AD\/DA \u65f6\u4f7f\u7528 DMA \u4e5f\u662f\u4e0d\u9519\u7684\u9009\u62e9\u3002DMA \u662f\u7528\u786c\u4ef6\u5b9e\u73b0\u5b58\u50a8\u5668\u4e0e\u5b58\u50a8\u5668\u4e4b\u95f4\u6216\u5b58\u50a8\u5668\u4e0e I\/O \u8bbe\u5907\u4e4b\u95f4\u76f4\u63a5\u8fdb\u884c\u9ad8\u901f\u6570\u636e\u4f20\u8f93\u3002\u4f7f\u7528 DMA\u65f6\uff0cCPU \u5411 DMA \u63a7\u5236\u5668\u53d1\u51fa\u4e00\u4e2a\u5b58\u50a8\u4f20\u8f93\u8bf7\u6c42\uff0c\u8fd9\u6837\u5f53 DMA \u63a7\u5236\u5668\u5728\u4f20\u8f93\u7684\u65f6\u5019\uff0cCPU \u6267\u884c\u5176\u5b83\u64cd\u4f5c\uff0c\u4f20\u8f93\u64cd\u4f5c\u5b8c\u6210\u65f6 DMA \u4ee5\u4e2d\u65ad\u7684\u65b9\u5f0f\u901a\u77e5 CPU\u3002<\/p>\n\n\n\n<p>\u4e3a\u4e86\u53d1\u8d77\u4f20\u8f93\u4e8b\u52a1\uff0cDMA \u63a7\u5236\u5668\u5fc5\u987b\u5f97\u5230\u4ee5\u4e0b\u6570\u636e\uff1a<br>\u2022 \u6e90\u5730\u5740 \u2014 \u6570\u636e\u88ab\u8bfb\u51fa\u7684\u5730\u5740<br>\u2022 \u76ee\u7684\u5730\u5740 \u2014 \u6570\u636e\u88ab\u5199\u5165\u7684\u5730\u5740<br>\u2022 \u4f20\u8f93\u957f\u5ea6 \u2014 \u5e94\u88ab\u4f20\u8f93\u7684\u5b57\u8282\u6570<\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-style-default\"><img loading=\"lazy\" width=\"793\" height=\"396\" src=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-15.png\" alt=\"\" class=\"wp-image-1147\" srcset=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-15.png 793w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-15-300x150.png 300w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-15-768x384.png 768w\" sizes=\"(max-width: 793px) 100vw, 793px\" \/><\/figure>\n\n\n\n<p>DMA \u5b58\u50a8\u4f20\u8f93\u7684\u8fc7\u7a0b\u5982\u4e0b\uff1a<\/p>\n\n\n\n<ol><li>\u4e3a\u4e86\u914d\u7f6e\u7528 DMA \u4f20\u8f93\u6570\u636e\u5230\u5b58\u50a8\u5668\uff0c\u5904\u7406\u5668\u53d1\u51fa\u4e00\u6761 DMA \u547d\u4ee4<\/li><li>DMA \u63a7\u5236\u5668\u628a\u6570\u636e\u4ece\u5916\u8bbe\u4f20\u8f93\u5230\u5b58\u50a8\u5668\u6216\u4ece\u5b58\u50a8\u5668\u5230\u5b58\u50a8\u5668\uff0c\u800c\u8ba9 CPU \u817e\u51fa\u624b\u6765\u505a\u5176\u5b83\u64cd\u4f5c\u3002<\/li><li>\u6570\u636e\u4f20\u8f93\u5b8c\u6210\u540e\uff0c\u5411 CPU \u53d1\u51fa\u4e00\u4e2a\u4e2d\u65ad\u6765\u901a\u77e5\u5b83 DMA \u4f20\u8f93\u53ef\u4ee5\u5173\u95ed\u4e86\u3002<br><\/li><\/ol>\n\n\n\n<p class=\"has-light-pink-background-color has-background\">            ZYNQ \u63d0\u4f9b\u4e86\u4e24\u79cd DMA\uff0c\u4e00\u79cd\u662f\u96c6\u6210\u5728 PS \u4e2d\u7684\u786c\u6838 DMA\uff0c\u53e6\u4e00\u79cd\u662f PL \u4e2d\u4f7f\u7528\u7684\u8f6f\u6838 AXI DMAIP\u3002\u5728 ARM CPU \u8bbe\u8ba1\u7684\u8fc7\u7a0b\u4e2d\uff0c\u5df2\u7ecf\u8003\u8651\u5230\u4e86\u5927\u91cf\u6570\u636e\u642c\u79fb\u7684\u60c5\u51b5\uff0c\u56e0\u6b64\u5728 CPU \u4e2d\u81ea\u5e26\u4e86\u4e00\u4e2a DMA \u63a7\u5236\u5668 DAMC\uff0c\u8fd9\u4e2a DAMC \u9a7b\u7559\u5728 PS \u5185\uff0c\u800c\u4e14\u5fc5\u987b\u901a\u8fc7\u9a7b\u7559\u5728\u5185\u5b58\u4e2d\u7684 DMA \u6307\u4ee4\u7f16\u7a0b\uff0c\u8fd9\u4e9b\u7a0b\u5e8f\u5f80\u5f80\u7531CPU \u51c6\u5907\uff0c\u56e0\u6b64\u9700\u8981\u90e8\u5206\u7684 CPU \u53c2\u4e0e\u3002DMAC \u652f\u6301\u9ad8\u8fbe 8 \u4e2a\u901a\u9053\uff0c\u6240\u4ee5\u591a\u4e2a DMA \u7ed3\u6784\u7684\u6838\u53ef\u4ee5\u6302\u5728\u5355\u4e2aDMAC \u4e0a\u3002DAMC \u4e0e PL \u7684\u8fde\u63a5\u662f\u901a\u8fc7 AXI_GP \u63a5\u53e3\uff0c\u8fd9\u4e2a\u63a5\u53e3\u6700\u9ad8\u652f\u6301\u5230 32 \u4f4d\u5bbd\u5ea6\uff0c\u8fd9\u4e5f\u9650\u5236\u4e86\u8fd9\u79cd\u6a21\u5f0f\u4e0b\u7684\u4f20\u8f93\u901f\u7387\uff0c\u7406\u8bba\u6700\u9ad8\u901f\u7387\u4e3a 600MB\/s\u3002\u8fd9\u79cd\u6a21\u5f0f\u4e0d\u5360\u7528 PL \u8d44\u6e90\uff0c\u4f46\u9700\u8981\u5bf9 DMA \u6307\u4ee4\u7f16\u7a0b\uff0c\u4f1a\u589e\u52a0\u8f6f\u4ef6\u7684\u590d\u6742\u6027\u3002\u4e3a\u4e86\u83b7\u53d6\u66f4\u9ad8\u7684\u4f20\u8f93\u901f\u7387\uff0c\u53ef\u4ee5\u4ee5\u7a7a\u95f4\u6362\u65f6\u95f4\uff0c\u5728 PL \u4e2d\u6dfb\u52a0 AXI DMAIP \u6838\uff0c\u5e76\u5229\u7528 AXI_HP \u63a5\u53e3\u5b8c\u6210\u9ad8\u901f\u7684\u6570\u636e\u4f20\u8f93\u3002<\/p>\n\n\n\n<p class=\"has-light-gray-background-color has-background\">\u4e3a\u4e86\u83b7\u53d6\u66f4\u9ad8\u7684\u4f20\u8f93\u901f\u7387\uff0c\u53ef\u4ee5\u4ee5\u7a7a\u95f4\u6362\u65f6\u95f4\uff0c\u5728 PL \u4e2d\u6dfb\u52a0 AXI DMAIP \u6838\uff0c\u5e76\u5229\u7528 AXI_HP \u63a5\u53e3\u5b8c\u6210\u9ad8\u901f\u7684\u6570\u636e\u4f20\u8f93\uff0c\u901a\u8fc7 PL \u7684 DMA \u548c AXI_HP \u63a5\u53e3\u7684\u4f20\u8f93\u9002\u7528\u4e8e\u5927\u5757\u6570\u636e\u7684\u9ad8\u6027\u80fd\u4f20\u8f93\uff0c\u5e26\u5bbd\u9ad8\u3002\u5404\u79cd\u63a5\u53e3\u65b9\u5f0f\u7684\u6bd4\u8f83\u5982\u4e0b\u8868\u6240\u793a\uff1a<\/p>\n\n\n\n<div class=\"wp-block-image is-style-default\"><figure class=\"aligncenter size-full\"><img loading=\"lazy\" width=\"913\" height=\"956\" src=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-16.png\" alt=\"\" class=\"wp-image-1148\" srcset=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-16.png 913w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-16-287x300.png 287w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-16-768x804.png 768w\" sizes=\"(max-width: 913px) 100vw, 913px\" \/><\/figure><\/div>\n\n\n\n<p>ZYNQ \u5f00\u53d1\u677f\u4e0a\u4f7f\u7528 PL \u7684 AXI DMA IP \u6838\u4ece DDR3 \u4e2d\u8bfb\u53d6\u6570\u636e\uff0c\u5e76\u5c06\u6570\u636e\u5199\u56de\u5230 DDR3 \u4e2d\u3002<\/p>\n\n\n\n<p>\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0cDMA \u4e00\u822c\u4e0e\u4ea7\u751f\u6570\u636e\u6216\u9700\u6c42\u6570\u636e\u7684 IP \u6838\u76f8\u8fde\u63a5\uff0c\u8be5 IP \u6838\u53ef\u4ee5\u662f\u5e26\u6709 Stream \u63a5\u53e3\u7684\u9ad8\u901f\u7684 AD\uff08\u6a21\u62df\u8f6c\u6570\u5b57\uff09\u6216 DA\uff08\u6570\u5b57\u8f6c\u6a21\u62df\uff09 IP \u6838\u3002\u4e0d\u5931\u4e00\u822c\u6027\uff0c\u5728\u672c\u6b21\u5b9e\u9a8c\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528 AXI4 Stream Data FIFO IP \u6838\u6765\u5145\u5f53\u8fd9\u7c7b IP \u8fdb\u884c DMA \u73af\u56de\u5b9e\u9a8c\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-style-default\"><img loading=\"lazy\" width=\"958\" height=\"648\" src=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-18.png\" alt=\"\" class=\"wp-image-1151\" srcset=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-18.png 958w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-18-300x203.png 300w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-18-768x519.png 768w\" sizes=\"(max-width: 958px) 100vw, 958px\" \/><\/figure>\n\n\n\n<p><strong>AXI Direct Memory Access<\/strong>\u91cd\u8981\u7aef\u53e3\u8bf4\u660e:<\/p>\n\n\n\n<ul><li>S_AXI_LITE: \u914d\u7f6eDMA\u5de5\u4f5c\u6a21\u5f0f<\/li><li>M_AXI_MM2S\uff1aDDR\u5230DMA\u6570\u636e\u63a5\u53e3<\/li><li>M_AXI_S2MM\uff1aDMA\u6570\u636e\u5230DDR\u63a5\u53e3<\/li><li>S_AXIS_S2MM: \u63a5\u6536\u7684DMA\u6570\u636e\u8f93\u51fa\u7aef\u53e3<\/li><li>M_AXIS_MM2S: \u60f3\u901a\u8fc7DMA\u8f93\u51fa\u7684\u6570\u636e\u5199\u5165\u7aef\u53e3<\/li><\/ul>\n\n\n\n<h2>DDR3<\/h2>\n\n\n\n<p>\u901a\u8fc7\u5bf9<code>AXI HP<\/code>\u63a5\u53e3\u7684\u64cd\u4f5c\u6765\u5b9e\u73b0<\/p>\n\n\n\n<p>AXI \u7684\u82f1\u6587\u5168\u79f0\u662f Advanced eXtensible Interface\uff0c\u5373\u9ad8\u7ea7\u53ef\u6269\u5c55\u63a5\u53e3\uff0c\u5b83\u662f ARM \u516c\u53f8\u6240\u63d0\u51fa\u7684 AMBA\uff08Advanced Microcontroller Bus Architecture\uff09\u534f\u8bae\u7684\u4e00\u90e8\u5206\u3002<\/p>\n\n\n\n<p class=\"has-light-pink-background-color has-background\">AXI4 \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\u7684 AXI4 \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 class=\"has-light-pink-background-color has-background\">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\u800c AXI-Stream \u63a5\u53e3\u5219\u50cf FIFO \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\u901f AD\u3001PCIe\u3001DMA \u63a5\u53e3\u7b49\u9700\u8981\u9ad8\u901f\u6570\u636e\u4f20\u8f93\u7684\u573a\u5408\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-style-default\"><img loading=\"lazy\" width=\"1024\" height=\"396\" src=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-19-1024x396.png\" alt=\"\" class=\"wp-image-1155\" srcset=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-19-1024x396.png 1024w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-19-300x116.png 300w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-19-768x297.png 768w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-19-1536x594.png 1536w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-19.png 1584w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption>\u8bfb\u4f20\u8f93<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large is-style-default\"><img loading=\"lazy\" width=\"1024\" height=\"632\" src=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-20-1024x632.png\" alt=\"\" class=\"wp-image-1156\" srcset=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-20-1024x632.png 1024w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-20-300x185.png 300w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-20-768x474.png 768w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-20-825x510.png 825w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-20.png 1144w\" 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\u4e2a VALID \u548c\u4e00\u4e2a READY \u4fe1\u53f7\uff0cVALID \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\u800c READY \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\u3002<\/p>\n\n\n\n<p class=\"has-light-pink-background-color has-background\">\u901a\u8fc7\u81ea\u5b9a\u4e49\u4e00\u4e2a AXI4 \u63a5\u53e3\u7684 IP \u6838\uff0c\u901a\u8fc7 AXI_HP \u63a5\u53e3\u5bf9 PS \u7aef DDR3 \u8fdb\u884c\u8bfb\u5199\u6d4b\u8bd5\u3002<\/p>\n\n\n\n<p>AXI_HP\u603b\u7ebf\uff1a\u53ea\u80fd\u5355\u5411\u4f20\u8f93\uff0c\u4ecePL\u5230PS\u7aef\uff0c\u9002\u7528\u4e8e\u5927\u6570\u636e\u4f20\u8f93\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-style-default\"><img loading=\"lazy\" width=\"1024\" height=\"375\" src=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-21-1024x375.png\" alt=\"\" class=\"wp-image-1157\" srcset=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-21-1024x375.png 1024w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-21-300x110.png 300w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-21-768x281.png 768w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/01\/image-21.png 1435w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption>\u7cfb\u7edf\u56fe<\/figcaption><\/figure>\n\n\n\n<p>PL\u5b9e\u73b0AXI4\u63a5\u53e3\uff0c\u901a\u8fc7<code>S_AXI_HP<\/code>\u63a5\u53e3\u8bfb\u53d6ps\u4fa7DDR3\u6570\u636e. \u4f8b\u7a0b\u529f\u80fd\uff1aPL\uff0cPS\u5411\u6307\u5b9a\u5730\u5740\u5199\u6570\u636e\uff0c\u5bf9\u65b9\u6765\u8bfb.<\/p>\n\n\n\n<p>AXI-DMA\uff1a\u5b9e\u73b0\u4ecePS\u5185\u5b58\u5230PL\u9ad8\u901f\u4f20\u8f93\u9ad8\u901f\u901a\u9053AXI-HP&lt;&#8212;-&gt;AXI-Stream\u7684\u8f6c\u6362<br>AXI-Datamover\uff1a\u5b9e\u73b0\u4ecePS\u5185\u5b58\u5230PL\u9ad8\u901f\u4f20\u8f93\u9ad8\u901f\u901a\u9053AXI-HP&lt;&#8212;-&gt;AXI-Stream\u7684\u8f6c\u6362\uff0c\u53ea\u4e0d\u8fc7\u8fd9\u6b21\u662f\u5b8c\u5168\u7531PL\u63a7\u5236\u7684\uff0cPS\u662f\u5b8c\u5168\u88ab\u52a8\u7684\u3002<br>AXI-VDMA\uff1a\u5b9e\u73b0\u4ecePS\u5185\u5b58\u5230PL\u9ad8\u901f\u4f20\u8f93\u9ad8\u901f\u901a\u9053AXI-HP&lt;&#8212;-&gt;AXI-Stream\u7684\u8f6c\u6362\uff0c\u53ea\u4e0d\u8fc7\u662f\u4e13\u95e8\u9488\u5bf9\u89c6\u9891\u3001\u56fe\u50cf\u7b49\u4e8c\u7ef4\u6570\u636e\u7684\u3002<br>AXI-CDMA IP: \u8fd9\u4e2a\u662f\u7531PL\u5b8c\u6210\u7684\u5c06\u6570\u636e\u4ece\u5185\u5b58\u7684\u4e00\u4e2a\u4f4d\u7f6e\u642c\u79fb\u5230\u53e6\u4e00\u4e2a\u4f4d\u7f6e\uff0c\u65e0\u9700CPU\u6765\u63d2\u624b\u3002\u8fd9\u4e2a\u548c\u6211\u4eec\u8fd9\u91cc\u7528\u7684Stream\u6ca1\u6709\u5173\u7cfb<\/p>\n\n\n\n<h2>\u81ea\u5b9a\u4e49AXI\u63a5\u53e3IP<\/h2>\n\n\n\n<p>\u4e00\u822c\u5e94\u7528\u573a\u666f\u5728\u4e8ePS\u5bf9\u67d0\u4e9b\u5bc4\u5b58\u5668\u7684\u914d\u7f6e\uff0c\u4f20\u8f93\u5c11\u91cf\u7684\u6570\u636e\u4fe1\u606f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6700\u8fd1\u6709\u4e2a\u9879\u76ee\u5173\u4e8eFPGA\u52a0\u901f\u795e\u7ecf\u7f51\u7edc\uff0c\u56e0\u6b64\u9700\u8981\u4e86\u89e3\u76f8\u5173PS\u548cpl\u4ea4\u4e92\u7684\u65b9\u6cd5\uff0c\u4ece\u800c\u5c06\u6743\u91cd\u6570\u636e\u5b58\u653e\u5728PS\u7684DDR\u4e2d &hellip; <a href=\"http:\/\/139.9.1.231\/index.php\/2022\/01\/03\/pspl\/\" class=\"more-link\">\u7ee7\u7eed\u9605\u8bfb<span class=\"screen-reader-text\">PS\u548cPL\u7684\u4ea4\u4e92\u65b9\u5f0f\u6c47\u603b<\/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\/1127"}],"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=1127"}],"version-history":[{"count":22,"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/posts\/1127\/revisions"}],"predecessor-version":[{"id":1165,"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/posts\/1127\/revisions\/1165"}],"wp:attachment":[{"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/media?parent=1127"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/categories?post=1127"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/tags?post=1127"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}