{"id":92204,"date":"2026-08-09T17:32:44","date_gmt":"2026-08-09T09:32:44","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/92204.html"},"modified":"2026-08-09T17:32:44","modified_gmt":"2026-08-09T09:32:44","slug":"uvm-virtual-sequencer-%e4%b8%8e-virtual-sequence%ef%bc%9a%e4%bb%8e%e5%90%84%e8%87%aa%e4%b8%ba%e6%88%98%e5%88%b0%e7%bb%9f%e4%b8%80%e8%b0%83%e5%ba%a6","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/92204.html","title":{"rendered":"UVM virtual sequencer \u4e0e virtual sequence\uff1a\u4ece\u201c\u5404\u81ea\u4e3a\u6218\u201d\u5230\u201c\u7edf\u4e00\u8c03\u5ea6\u201d"},"content":{"rendered":"<h3>1. \u5f53\u591a\u4e2a Agent \u9700\u8981\u201c\u6b65\u8c03\u4e00\u81f4\u201d<\/h3>\n<p>\u5728\u6a21\u5757\u7ea7\u9a8c\u8bc1\u4e2d&#xff0c;\u901a\u5e38\u53ea\u6709\u4e00\u4e2a\u63a5\u53e3 Agent&#xff0c;\u6bd4\u5982\u4e00\u4e2a AHB Master Agent \u9a71\u52a8\u603b\u7ebf&#xff0c;\u5176\u5185\u90e8\u7684 sequencer \u72ec\u81ea\u4ea7\u751f\u6fc0\u52b1&#xff0c;\u5b8c\u5168\u591f\u7528\u3002\u4f46\u6765\u5230 SOC \u7ea7\u9a8c\u8bc1&#xff0c;\u573a\u666f\u590d\u6742\u5f88\u591a&#xff1a;CPU \u8981\u901a\u8fc7\u603b\u7ebf\u914d\u7f6e DMA \u5bc4\u5b58\u5668\u3001DMA \u53d1\u8d77\u642c\u79fb\u64cd\u4f5c\u3001\u540c\u65f6 IO \u8bbe\u5907\u6301\u7eed\u4ea7\u751f\u4e2d\u65ad\u548c\u6570\u636e\u6d41\u3002\u6b64\u65f6\u6d4b\u8bd5\u7528\u4f8b\u5f80\u5f80\u9700\u8981\u5728\u540c\u4e00\u65f6\u95f4\u6bb5\u5185\u534f\u8c03 CPU\u3001DMA\u3001IO \u7b49\u591a\u8def\u6fc0\u52b1&#xff0c;\u8ba9\u5b83\u4eec\u6309\u7279\u5b9a\u65f6\u5e8f\u3001\u987a\u5e8f\u6216\u5e76\u884c\u5173\u7cfb\u8fd0\u884c\u3002<\/p>\n<p>\u6bcf\u4e2a Agent \u81ea\u5e26\u7684 sequencer \u53ea\u80fd\u7ba1\u7406\u81ea\u5df1\u7684 sequence&#xff0c;\u65e0\u6cd5\u77e5\u9053\u5176\u4ed6 Agent \u5728\u505a\u4ec0\u4e48&#xff0c;\u66f4\u8c08\u4e0d\u4e0a\u534f\u540c\u3002\u663e\u7136&#xff0c;\u6211\u4eec\u9700\u8981\u4e00\u4e2a\u201c\u603b\u6307\u6325\u201d\u2014\u2014\u5b83\u80fd\u540c\u65f6\u770b\u5230\u6240\u6709 Agent \u7684 sequencer&#xff0c;\u5e76\u50cf\u4e50\u961f\u7684\u6307\u6325\u4e00\u6837&#xff0c;\u628a\u8282\u594f\u548c\u65f6\u673a\u51c6\u786e\u5730\u5206\u7ed9\u6bcf\u4e00\u4e2a\u58f0\u90e8\u3002<\/p>\n<p>\u8fd9\u5c31\u662f\u5f15\u5165 uvm_virtual_sequencer \u548c uvm_virtual_sequence \u7684\u52a8\u673a\u3002<\/p>\n<h3>2. \u6838\u5fc3\u6982\u5ff5&#xff1a;\u8c03\u5ea6\u5e2d\u3001\u8c03\u5ea6\u5458\u4e0e\u751f\u4ea7\u7ebf<\/h3>\n<p>\u5148\u5398\u6e05\u4e09\u4e2a\u89d2\u8272&#xff1a;<\/p>\n<ul>\n<li>\n<p>\u751f\u4ea7\u7ebf \u2014\u2014 Real Sequencer<br \/>\n\u6bcf\u4e2a Agent \u5185\u90e8\u771f\u5b9e\u7684 uvm_sequencer&#xff0c;\u5b83\u8d1f\u8d23\u5c06 sequence_item \u53d1\u9001\u7ed9\u5bf9\u5e94\u7684 driver&#xff0c;\u771f\u6b63\u4ea7\u751f\u63a5\u53e3\u6ce2\u5f62\u3002\u5b83\u53ea\u80fd\u88ab\u52a8\u7684\u63a5\u6536 sequence \u6765\u542f\u52a8\u3002<\/p>\n<\/li>\n<li>\n<p>\u8c03\u5ea6\u5e2d \u2014\u2014 Virtual Sequencer<br \/>\n\u5b83\u672c\u8eab\u4e5f\u662f\u4e00\u4e2a uvm_sequencer&#xff08;\u901a\u5e38\u76f4\u63a5\u4ece uvm_sequencer \u6269\u5c55&#xff09;&#xff0c;\u4f46\u4e0d\u751f\u4ea7\u4efb\u4f55\u6570\u636e&#xff0c;\u4e5f\u4e0d\u5411\u4efb\u4f55 driver \u53d1\u9001 item\u3002\u5b83\u7684\u552f\u4e00\u4f5c\u7528\u662f\u805a\u5408\u5176\u4ed6 real sequencer \u7684\u53e5\u67c4&#xff0c;\u6210\u4e3a\u4e00\u4e2a\u201c\u901a\u8baf\u5f55\u201d&#xff0c;\u8ba9\u4f7f\u7528\u8005\u901a\u8fc7\u5b83\u627e\u5230\u6240\u6709\u9700\u8981\u8c03\u5ea6\u7684\u751f\u4ea7\u7ebf\u3002<\/p>\n<p>\u5178\u578b\u7684 virtual sequencer \u4ee3\u7801\u5982\u4e0b&#xff1a;<\/p>\n<p>class my_vseqr extends uvm_sequencer;<br \/>\n    cpu_sequencer  m_cpu_sqr;<br \/>\n    dma_sequencer  m_dma_sqr;<br \/>\n    io_sequencer   m_io_sqr;<\/p>\n<p>    &#096;uvm_component_utils(my_vseqr)<\/p>\n<p>    function new(string name, uvm_component parent);<br \/>\n        super.new(name, parent);<br \/>\n    endfunction<br \/>\nendclass<\/p>\n<p>\u8fd9\u91cc\u4e0d\u9700\u8981\u4e5f\u4e0d\u5e94\u8be5\u5199 uvm_declare_p_sequencer \u5b8f&#xff0c;\u8be5\u5b8f\u662f\u7ed9 sequence \u7528\u7684\u3002<\/p>\n<\/li>\n<li>\n<p>\u8c03\u5ea6\u5458 \u2014\u2014 Virtual Sequence<br \/>\n\u5b83\u662f\u4e00\u4e2a\u666e\u901a\u7684 uvm_sequence&#xff0c;\u4f46\u5728 body \u4e2d\u901a\u8fc7 p_sequencer \u5b8f\u83b7\u5f97\u8c03\u5ea6\u5e2d\u7684\u53e5\u67c4&#xff0c;\u4ece\u800c\u53ef\u4ee5\u8bbf\u95ee\u6240\u6709 real sequencer&#xff0c;\u5e76\u5728\u5176\u4e0a\u542f\u52a8\u5bf9\u5e94\u7684 sequence\u3002\u8c03\u5ea6\u5458\u5236\u5b9a\u201c\u5267\u672c\u201d&#xff08;sequence \u7684\u542f\u52a8\u987a\u5e8f\u3001\u5e76\u884c\/\u4e32\u884c\u5173\u7cfb&#xff09;&#xff0c;\u6307\u6325\u6bcf\u4e00\u6761\u751f\u4ea7\u7ebf\u4f55\u65f6\u5f00\u5de5\u3002<\/p>\n<\/li>\n<\/ul>\n<p>\u6709\u4e86\u8fd9\u4e09\u4e2a\u89d2\u8272\u7684\u914d\u5408&#xff0c;\u6fc0\u52b1\u8c03\u5ea6\u5c31\u4ece\u201c\u5404\u81ea\u4e3a\u6218\u201d\u53d8\u6210\u4e86\u201c\u7edf\u4e00\u6307\u6325\u201d\u3002<\/p>\n<h3>3. \u5173\u952e\u4ee3\u7801&#xff1a;\u6253\u901a\u4efb\u7763\u4e8c\u8109<\/h3>\n<p>\u4e0b\u9762\u7ed9\u51fa\u4e00\u4e2a\u5b8c\u6574\u7684\u6807\u51c6\u5b9e\u73b0\u6a21\u677f\u3002\u5047\u8bbe\u73af\u5883\u91cc\u5df2\u7ecf\u5b58\u5728 cpu_sequencer\u3001dma_sequencer \u4ee5\u53ca\u5bf9\u5e94\u7684 cpu_base_seq\u3001dma_base_seq\u3002<\/p>\n<p>\u7b2c\u4e00\u6b65&#xff1a;\u5b9a\u4e49 virtual sequencer&#xff08;\u8c03\u5ea6\u5e2d&#xff09;<\/p>\n<p>class my_vseqr extends uvm_sequencer;<br \/>\n    cpu_sequencer  m_cpu_sqr;<br \/>\n    dma_sequencer  m_dma_sqr;<\/p>\n<p>    &#096;uvm_component_utils(my_vseqr)<\/p>\n<p>    function new(string name, uvm_component parent);<br \/>\n        super.new(name, parent);<br \/>\n    endfunction<br \/>\nendclass<\/p>\n<p>\u5728\u5b9e\u9645\u73af\u5883\u4e2d&#xff0c;\u6211\u4eec\u9700\u8981\u5728\u67d0\u4e2a\u66f4\u9ad8\u7684\u5c42\u6b21&#xff08;\u5982 env \u6216 test&#xff09;\u5c06\u8fd9\u4e9b\u53e5\u67c4\u6307\u5411\u771f\u5b9e\u7684 sequencer&#xff1a;<\/p>\n<p>my_vseqr vseqr;<br \/>\n\/\/ \u5728 connect_phase \u6216 build_phase \u4e2d\u8fdb\u884c\u8d4b\u503c<br \/>\nvseqr.m_cpu_sqr &#061; env.cpu_agt.sqr;<br \/>\nvseqr.m_dma_sqr &#061; env.dma_agt.sqr;<\/p>\n<p>\u7b2c\u4e8c\u6b65&#xff1a;\u5b9a\u4e49 virtual sequence&#xff08;\u8c03\u5ea6\u5458&#xff09;&#xff0c;\u5e76\u901a\u8fc7 uvm_declare_p_sequencer \u83b7\u5f97\u8c03\u5ea6\u5e2d\u53e5\u67c4<\/p>\n<p>\u8fd9\u662f\u6700\u5173\u952e\u7684\u4e00\u6b65\u3002\u5b8f &#096;uvm_declare_p_sequencer(my_vseqr) \u4f1a\u58f0\u660e\u4e00\u4e2a p_sequencer \u53d8\u91cf&#xff0c;\u5e76\u5c06\u5176\u7c7b\u578b\u6307\u5b9a\u4e3a my_vseqr&#xff0c;\u4ece\u800c\u53ef\u4ee5\u76f4\u63a5\u8bbf\u95ee\u5176\u4e2d\u7684 m_cpu_sqr\u3001m_dma_sqr\u3002<\/p>\n<p>class my_vseq extends uvm_sequence#(uvm_sequence_item);<br \/>\n    &#096;uvm_object_utils(my_vseq)<br \/>\n    &#096;uvm_declare_p_sequencer(my_vseqr)   \/\/ \u5fc5\u987b&#xff01;\u8ba9 p_sequencer \u53d8\u4e3a my_vseqr \u7c7b\u578b<\/p>\n<p>    function new(string name&#061;&#034;my_vseq&#034;);<br \/>\n        super.new(name);<br \/>\n    endfunction<\/p>\n<p>    task body();<br \/>\n        cpu_base_seq cseq;<br \/>\n        dma_base_seq dseq;<\/p>\n<p>        \/\/ raise objection \u4ee5\u4fdd\u8bc1\u4eff\u771f\u4e0d\u63d0\u524d\u7ed3\u675f<br \/>\n        if (starting_phase !&#061; null)<br \/>\n            starting_phase.raise_objection(this);<\/p>\n<p>        &#096;uvm_info(&#034;VSEQ&#034;, &#034;Starting coordinated sequences&#034;, UVM_MEDIUM)<\/p>\n<p>        fork<br \/>\n            \/\/ \u5206\u522b\u5728\u5bf9\u5e94\u7684 real sequencer \u4e0a\u542f\u52a8 sequence<br \/>\n            cseq.start(p_sequencer.m_cpu_sqr);<br \/>\n            dseq.start(p_sequencer.m_dma_sqr);<br \/>\n        join<\/p>\n<p>        \/\/ \u4e24\u6761 sequence \u90fd\u5b8c\u6210\u540e&#xff0c;drop objection<br \/>\n        if (starting_phase !&#061; null)<br \/>\n            starting_phase.drop_objection(this);<\/p>\n<p>        &#096;uvm_info(&#034;VSEQ&#034;, &#034;Coordinated sequences done&#034;, UVM_MEDIUM)<br \/>\n    endtask<br \/>\nendclass<\/p>\n<p>\u7b2c\u4e09\u6b65&#xff1a;\u5728\u6d4b\u8bd5\u7528\u4f8b\u4e2d\u5c06 virtual sequence \u6302\u8f7d\u5230 virtual sequencer \u4e0a\u542f\u52a8<\/p>\n<p>class my_test extends uvm_test;<br \/>\n    my_vseqr vseqr;<br \/>\n    &#8230;<\/p>\n<p>    task run_phase(uvm_phase phase);<br \/>\n        my_vseq vseq &#061; my_vseq::type_id::create(&#034;vseq&#034;);<br \/>\n        phase.raise_objection(this);<br \/>\n        vseq.start(vseqr);   \/\/ \u628a\u8c03\u5ea6\u5458\u653e\u5230\u8c03\u5ea6\u5e2d\u4e0a\u6267\u884c<br \/>\n        phase.drop_objection(this);<br \/>\n    endtask<br \/>\nendclass<\/p>\n<p>\u6ce8\u610f\u8fd9\u91cc start(vseqr) \u4f20\u5165\u7684\u662f virtual sequencer&#xff0c;\u867d\u7136 virtual sequencer \u4e0d\u4f1a\u53d1\u9001 item&#xff0c;\u4f46\u901a\u8fc7\u5b83 p_sequencer \u624d\u80fd\u88ab\u6b63\u786e\u8bbe\u7f6e&#xff0c;\u6574\u4e2a\u8c03\u5ea6\u94fe\u8def\u624d\u8d70\u5f97\u901a\u3002<\/p>\n<h3>4. \u5b9e\u6218\u573a\u666f&#xff1a;\u8be5\u7528\u624d\u7528&#xff0c;\u5fcc\u6ee5\u7528<\/h3>\n<h4>SOC \u9a8c\u8bc1 \u2014\u2014 \u5fc5\u5907\u5229\u5668<\/h4>\n<ul>\n<li>\u542f\u52a8\u6d41\u7a0b&#xff1a;CPU \u5148\u914d\u7f6e\u7cfb\u7edf\u5bc4\u5b58\u5668&#xff0c;DMA \u642c\u8fd0\u542f\u52a8\u6570\u636e&#xff0c;IO \u63a7\u5236\u5668\u590d\u4f4d&#xff0c;\u7136\u540e CPU \u7b49\u5f85\u4e2d\u65ad\u2026\u2026\u6240\u6709\u64cd\u4f5c\u5fc5\u987b\u6309\u65f6\u95f4\u7ebf\u7f16\u6392&#xff0c;\u4e00\u4e2a vseq \u5c31\u80fd\u63cf\u8ff0\u6574\u4e2a\u573a\u666f\u3002<\/li>\n<li>\u5e76\u884c\u538b\u529b\u6d4b\u8bd5&#xff1a;CPU \u5faa\u73af\u8bfb\u5199\u3001DMA \u8fde\u7eed\u4f20\u8f93\u3001\u4ee5\u592a\u7f51\u6536\u53d1\u5e27\u540c\u65f6\u8fdb\u884c&#xff0c;\u5404\u4e2a real sequencer \u8dd1\u5404\u81ea\u7684 sequence&#xff0c;\u901a\u8fc7 fork\/join \u5728 vseq \u91cc\u7edf\u4e00\u7ba1\u7406\u3002<\/li>\n<li>\u4f4e\u529f\u8017\u573a\u666f&#xff1a;\u6309\u7167\u7279\u5b9a\u987a\u5e8f\u5173\u949f\u3001\u5173\u7535\u6e90\u3001\u5524\u9192&#xff0c;\u6d89\u53ca\u591a\u4e2a\u6a21\u5757&#xff0c;vseq \u8d1f\u8d23\u7f16\u6392\u3002<\/li>\n<\/ul>\n<h4>IP \u7ea7\u9a8c\u8bc1 \u2014\u2014 \u4e00\u822c\u4e0d\u9700\u8981<\/h4>\n<p>\u5355\u4e2a IP \u901a\u5e38\u53ea\u6709\u4e00\u4e24\u4e2a\u6807\u51c6\u63a5\u53e3&#xff08;\u4f8b\u5982 AXI-Slave &#043; Register IF&#xff09;&#xff0c;\u7528\u4e00\u4e2a\u666e\u901a\u7684 sequence \u5c31\u80fd\u5904\u7406\u6240\u6709\u6fc0\u52b1\u3002\u5f3a\u884c\u5f15\u5165 virtual sequencer \u53ea\u4f1a\u589e\u52a0\u5c42\u6b21\u590d\u6742\u5ea6&#xff0c;\u6ca1\u6709\u5b9e\u8d28\u6536\u76ca\u3002\u8bb0\u4f4f\u539f\u5219&#xff1a;\u53ea\u5728\u9700\u8981\u8de8 Agent \u534f\u8c03\u65f6\u4f7f\u7528 virtual \u673a\u5236\u3002<\/p>\n<h3>5. \u6613\u8e29\u5751&#xff1a;\u907f\u5f00\u8fd9\u4e9b\u5730\u96f7<\/h3>\n<li>\n<p>\u628a virtual sequencer \u5f53\u6210 real sequencer \u7528<br \/>\n\u5728 vseq.start(vseqr) \u4e4b\u540e&#xff0c;\u5982\u679c\u4f60\u5728 virtual sequencer \u5185\u90e8\u8bd5\u56fe\u53d1\u9001 item&#xff0c;\u4f1a\u53d1\u73b0\u6839\u672c\u6ca1\u6709 driver \u5728\u63a5\u6536\u5b83\u3002\u4e00\u5b9a\u8981\u6e05\u695a&#xff1a;vseqr \u53ea\u662f\u5f20\u201c\u540d\u7247\u5939\u201d&#xff0c;\u4e0d\u53c2\u4e0e\u5b9e\u9645\u4f20\u8f93\u3002<\/p>\n<\/li>\n<li>\n<p>\u6f0f\u5199 &#096;uvm_declare_p_sequencer<br \/>\n\u5982\u679c\u6ca1\u6709\u8fd9\u4e2a\u5b8f&#xff0c;p_sequencer \u7684\u7c7b\u578b\u662f uvm_sequencer_base&#xff0c;\u65e0\u6cd5\u8bbf\u95ee m_cpu_sqr \u7b49\u6210\u5458&#xff0c;\u7f16\u8bd1\u6216\u8fd0\u884c\u65f6\u4f1a\u62a5\u51fa\u7a7a\u53e5\u67c4\u6216\u7c7b\u578b\u9519\u8bef\u3002\u66f4\u7cdf\u7684\u662f&#xff0c;\u5982\u679c\u4f60\u58f0\u660e\u4e86\u4e00\u4e2a\u540c\u540d\u7684\u672c\u5730 p_sequencer&#xff0c;\u5f88\u53ef\u80fd\u5f15\u8d77\u66f4\u9690\u853d\u7684\u95ee\u9898\u3002<br \/>\n\u8be5\u5b8f\u5fc5\u987b\u5199\u5728 virtual sequence \u7c7b\u5185\u90e8&#xff0c;\u4e0d\u662f virtual sequencer \u5185\u90e8\u3002<\/p>\n<\/li>\n<li>\n<p>p_sequencer \u4e3a null<br \/>\n\u5e38\u89c1\u539f\u56e0&#xff1a;<\/p>\n<ul>\n<li>\u5728\u542f\u52a8 virtual sequence \u65f6\u4f20\u5165\u7684\u662f null \u6216\u8005\u9519\u8bef\u7684 sequencer\u3002<\/li>\n<li>\u5fd8\u8bb0\u5728\u73af\u5883\u5c42\u5c06 real sequencer \u7684\u53e5\u67c4\u8d4b\u503c\u7ed9 vseqr \u7684\u6210\u5458\u3002<\/li>\n<li>\u5728 uvm_declare_p_sequencer \u4e4b\u540e&#xff0c;\u6ca1\u6709\u901a\u8fc7\u6b63\u5e38 start() \u6d41\u7a0b\u6267\u884c sequence&#xff0c;\u5bfc\u81f4\u5b8f\u80cc\u540e\u7684\u81ea\u52a8\u5316\u67e5\u627e\u5931\u8d25\u3002<br \/>\n\u4e00\u5b9a\u8981\u786e\u4fdd\u542f\u52a8 vseq \u65f6\u6267\u884c vseq.start(vseqr)\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>fork\/join \u9519\u914d\u5bfc\u81f4\u65f6\u5e8f\u5931\u63a7<br \/>\n\u5982\u679c\u4f7f\u7528 fork &#8230; join_none \u542f\u52a8\u591a\u6761 sequence&#xff0c;\u4f46\u4e0d\u7b49\u5f85\u5b83\u4eec\u5b8c\u6210\u5c31\u9000\u51fa body&#xff0c;\u5e76\u4e14 objection \u7ba1\u7406\u6df7\u4e71&#xff0c;\u53ef\u80fd\u5bfc\u81f4\u4eff\u771f\u8fc7\u65e9\u7ed3\u675f&#xff0c;\u6216\u8005 sequence \u4e4b\u95f4\u51fa\u73b0\u7ade\u4e89\u3002\u63a8\u8350\u505a\u6cd5&#xff1a;<\/p>\n<ul>\n<li>\u9700\u8981\u6240\u6709 sequence \u90fd\u5b8c\u6210\u7684\u573a\u666f\u7528 fork&#8230;join\u3002<\/li>\n<li>\u9700\u8981\u90e8\u5206 sequence \u6c38\u8fdc\u5728\u540e\u53f0\u8fd0\u884c\u7684&#xff0c;\u7528 fork&#8230;join_any &#043; \u660e\u786e\u7684\u7ec8\u6b62\u6761\u4ef6\u3002<\/li>\n<li>\u4f7f\u7528 uvm_sequence_base::wait_for_sequence_state \u6216\u81ea\u5b9a\u4e49\u540c\u6b65\u4e8b\u4ef6\u6765\u7ba1\u7406\u5b8c\u6210\u72b6\u6001\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u591a\u4e2a virtual sequence \u5e76\u884c\u65f6 objection \u7ba1\u7406\u6df7\u4e71<br \/>\n\u5f53\u6709\u591a\u4e2a vseq \u540c\u65f6\u5728\u5404\u4e2a\u5b50 sequencer \u4e0a\u8dd1\u65f6&#xff0c;\u5982\u679c\u6bcf\u4e2a vseq \u5185\u90e8\u90fd raise\/drop objection&#xff0c;\u4e14\u6ca1\u6709\u7edf\u4e00\u7684\u9000\u51fa\u7b56\u7565&#xff0c;\u5f88\u5bb9\u6613\u51fa\u73b0\u67d0\u4e2a vseq drop objection \u5bfc\u81f4\u6574\u4e2a\u4eff\u771f\u63d0\u524d\u7ed3\u675f&#xff0c;\u800c\u5176\u4ed6 vseq \u8fd8\u6ca1\u8dd1\u5b8c\u3002\u5efa\u8bae&#xff1a;<\/p>\n<ul>\n<li>\u5728\u6700\u9ad8\u5c42\u6d4b\u8bd5\u7528\u4f8b\u4e2d\u7edf\u4e00 raise objection&#xff0c;\u5728\u6240\u6709 vseq \u90fd\u5b8c\u6210\u540e\u624d drop\u3002<\/li>\n<li>\u6216\u8005\u4f7f\u7528 phase \u673a\u5236&#xff0c;\u4ee4 vseq \u5728 main_phase \u7b49 task phase \u4e2d\u81ea\u7136\u7ed3\u675f&#xff0c;\u7531 phase \u7684 objection \u81ea\u52a8\u7ba1\u7406\u3002<\/li>\n<\/ul>\n<\/li>\n<h3>6. \u7ecf\u9a8c\u603b\u7ed3&#xff1a;\u89d2\u8272\u5206\u660e&#xff0c;\u534f\u540c\u6709\u5e8f<\/h3>\n<p>\u518d\u5f3a\u8c03\u4e00\u4e0b\u4e09\u4e2a\u6838\u5fc3\u89d2\u8272\u7684\u672c\u8d28&#xff0c;\u4f5c\u4e3a\u201c\u53e3\u8bc0\u201d\u8bb0\u5fc6&#xff1a;<\/p>\n<ul>\n<li>\n<p>Virtual Sequencer \u2014\u2014 \u8c03\u5ea6\u5e2d<br \/>\n\u53ea\u8d1f\u8d23\u6301\u6709 real sequencer \u7684\u53e5\u67c4&#xff0c;\u4e0d\u751f\u4ea7 item&#xff0c;\u4e0d\u8fd0\u884c sequence\u3002<\/p>\n<\/li>\n<li>\n<p>Virtual Sequence \u2014\u2014 \u8c03\u5ea6\u5458<br \/>\n\u5728 body \u91cc\u901a\u8fc7 p_sequencer \u62ff\u5230\u8c03\u5ea6\u5e2d\u4e0a\u6240\u6709\u751f\u4ea7\u7ebf\u7684\u5f15\u7528&#xff0c;\u7f16\u6392\u5b83\u4eec\u5728\u65f6\u95f4\u4e0a\u7684\u542f\u52a8\u3001\u7b49\u5f85\u3001\u5e76\u884c\u4e0e\u4e32\u884c\u5173\u7cfb\u3002<\/p>\n<\/li>\n<li>\n<p>Real Sequencer \u2014\u2014 \u751f\u4ea7\u7ebf<br \/>\n\u771f\u5b9e\u5e72\u6d3b&#xff0c;\u5c06 item \u4ea4\u7ed9 driver \u4ea7\u751f\u6ce2\u5f62\u3002<\/p>\n<\/li>\n<\/ul>\n<p>\u638c\u63e1\u8fd9\u7ec4\u6982\u5ff5\u5e76\u7262\u8bb0\u5b83\u4eec\u7684\u5206\u5de5&#xff0c;\u53ef\u4ee5\u8ba9\u590d\u6742\u7684\u591a\u63a5\u53e3\u6fc0\u52b1\u573a\u666f\u53d8\u5f97\u5e72\u51c0\u3001\u53ef\u7ef4\u62a4\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>1. \u5f53\u591a\u4e2a Agent \u9700\u8981\u201c\u6b65\u8c03\u4e00\u81f4\u201d<br \/>\n\u5728\u6a21\u5757\u7ea7\u9a8c\u8bc1\u4e2d&#xff0c;\u901a\u5e38\u53ea\u6709\u4e00\u4e2a\u63a5\u53e3 Agent&#xff0c;\u6bd4\u5982\u4e00\u4e2a AHB Master Agent \u9a71\u52a8\u603b\u7ebf&#xff0c;\u5176\u5185\u90e8\u7684 sequencer \u72ec\u81ea\u4ea7\u751f\u6fc0\u52b1&#xff0c;\u5b8c\u5168\u591f\u7528\u3002\u4f46\u6765\u5230 SOC \u7ea7\u9a8c\u8bc1&#xff0c;\u573a\u666f\u590d\u6742\u5f88\u591a&#xff1a;CPU \u8981\u901a\u8fc7\u603b\u7ebf\u914d\u7f6e DMA \u5bc4\u5b58\u5668\u3001DMA \u53d1\u8d77\u642c\u79fb\u64cd\u4f5c\u3001\u540c\u65f6 IO \u8bbe\u5907\u6301\u7eed\u4ea7\u751f\u4e2d\u65ad\u548c\u6570\u636e\u6d41\u3002\u6b64\u65f6\u6d4b\u8bd5\u7528\u4f8b\u5f80\u5f80\u9700\u8981\u5728\u540c\u4e00\u65f6\u95f4\u6bb5\u5185\u534f\u8c03 CPU\u3001DMA\u3001IO<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[6028,4800,371],"topic":[],"class_list":["post-92204","post","type-post","status-publish","format-standard","hentry","category-server","tag-systemverilog","tag-uvm","tag-371"],"yoast_head":"<!-- This site is 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