{"id":97,"date":"2021-12-10T18:48:00","date_gmt":"2021-12-10T10:48:00","guid":{"rendered":"https:\/\/www.cywang.work\/?p=97"},"modified":"2023-05-04T18:06:55","modified_gmt":"2023-05-04T10:06:55","slug":"uvm%ef%bc%88%e4%ba%8c%ef%bc%89-tlm%e9%80%9a%e4%bf%a1","status":"publish","type":"post","link":"http:\/\/www.cywang.work\/index.php\/2021\/12\/10\/uvm%ef%bc%88%e4%ba%8c%ef%bc%89-tlm%e9%80%9a%e4%bf%a1\/","title":{"rendered":"UVM\uff08\u4e8c\uff09\u2014\u2014TLM\u901a\u4fe1"},"content":{"rendered":"\n
\n
\n

1. \u4ec0\u4e48\u662fTLM<\/h2>\n\n\n\n

TLM\u662fTransaction Level Modeling\uff08\u4e8b\u52a1\u7ea7\u5efa\u6a21\uff09\uff0c\u4e3a\u7ec4\u4ef6\u4e4b\u95f4\u7684\u901a\u4fe1\u5efa\u7acb\u4e13\u95e8\u7684\u901a\u4fe1\u4fe1\u9053\u3002
\"\"<\/p>\n<\/div>\n<\/div>\n\n\n\n

\n
\n

2. TLM\u539f\u7406<\/h2>\n\n\n\n
\"\"<\/figure>\n\n\n\n
\"\"<\/figure>\n<\/div>\n<\/div>\n\n\n\n
\n
\n

3. \u5e38\u7528TLM port\/imp\/export<\/h2>\n\n\n\n
<\/td>port<\/td>export<\/td>import<\/td><\/tr>
put<\/td>uvm_blocking_put_port#(T);
uvm_nonblocking_put_port#(T);
uvm_put_port#(T);<\/td>		uvm_blocking_put_export#(T); uvm_nonblocking_put_export#(T);
uvm_put_export#(T);<\/td>		uvm_blocking_put_imp#(T, IMP); uvm_nonblocking_put_imp#(T, IMP);
uvm_put_imp#(T, IMP);<\/td><\/tr>
get<\/td>uvm_blocking_get_port#(T);
uvm_nonblocking_get_port#(T);
uvm_get_port#(T);<\/td>		uvm_blocking_get_export#(T); uvm_nonblocking_get_export#(T);
uvm_get_export#(T);<\/td>		uvm_blocking_get_imp#(T, IMP); uvm_nonblocking_get_imp#(T, IMP);
\u00a0uvm_get_imp#(T, IMP);<\/td><\/tr>
peek<\/td>uvm_blocking_peek_port#(T);
uvm_nonblocking_peek_port#(T);
uvm_peek_port#(T);<\/td>		uvm_blocking_peek_export#(T); uvm_nonblocking_peek_export#(T);
uvm_peek_export#(T);<\/td>
uvm_blocking_peek_imp#(T, IMP); uvm_nonblocking_peek_imp#(T, IMP);
uvm_peek_imp#(T, IMP);<\/td><\/tr>
get peek<\/td>uvm_blocking_get_peek_port#(T); uvm_nonblocking_get_peek_port#(T);
uvm_get_peek_port#(T);<\/td>		uvm_blocking_get_peek_export#(T);\u00a0 uvm_nonblocking_get_peek_export#(T);
uvm_get_peek_export#(T);<\/td>		uvm_blocking_get_peek_imp#(T, IMP); uvm_nonblocking_get_peek_imp#(T, IMP);
uvm_get_peek_imp#(T, IMP);<\/td><\/tr>
transport<\/td>uvm_blocking_transport_port#(REQ, RSP); uvm_nonblocking_transport_port#(REQ, RSP);
uvm_transport_port#(REQ, RSP);<\/td>		uvm_blocking_transport_export#(REQ, RSP); uvm_nonblocking_transport_export#(REQ, RSP);
uvm_transport_export#(REQ, RSP);<\/td>		uvm_blocking_transport_imp#(REQ, RSP, IMP); uvm_nonblocking_transport_imp#(REQ, RSP, IMP); uvm_transport_imp#(REQ, RSP, IMP);<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

\u6bcf\u4e00\u4e2aIMP\u8981\u548c\u4e00\u4e2acomponent\u76f8\u5bf9\u5e94\u3002
\u6309\u7167\u63a7\u5236\u6d41\u7684\u4f18\u5148\u7ea7\u6392\u5e8f\uff0cUVM\u4e2d \u4e09\u79cd\u7aef\u53e3\u987a\u5e8f\u4e3a\uff1aPORT > EXPORT\u00a0 > IMP\u3002<\/p>\n<\/div>\n<\/div>\n\n\n\n

\n
\n

4. \u5e38\u7528TLM\u7aef\u53e3\u4f7f\u7528\u65b9\u6cd5<\/h2>\n\n\n\n
\u7aef\u53e3\u7c7b\u578b<\/strong><\/td>\u5b9e\u73b0\u65b9\u6cd5<\/strong><\/td><\/tr>
uvm_put_port #(T)<\/td>put()
try_put()
can_put()<\/td><\/tr>
uvm_blocking_put_port #(T)<\/td>put()<\/td><\/tr>
uvm_nonblocking_put_port #(T)<\/td>try_put()
can_put()<\/td><\/tr>
uvm_get_peek_port<\/td>get()\u3001try_get()\u3001can_get()
peek()\u3001try_peek()\u3001can_peek()<\/td><\/tr>
uvm_blocking_get_peek_port<\/td>get()
peek()<\/td><\/tr>
uvm_nonblocking_get_peek_port<\/td>try_get()\u3001can_get()
try_peek()\u3001can_peek()<\/td><\/tr>
uvm_transport_port<\/td>transport()
nb_transport()<\/td><\/tr>
uvm_blocking_transport_port<\/td>transport()<\/td><\/tr>
uvm_nonblocking_transport_port<\/td>nb_transport()<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

\u4e0a\u8868\u4e2d\u7701\u7565\u4e86get\u3001peek port\uff0c\u4e0eget_peek_port\u7c7b\u4f3c\u3002

put() \u662f\u4e00\u4e2atask,\u53ef\u80fd\u4f1a\u963b\u585e\u5f53\u524d\u8fdb\u7a0b\u76f4\u5230transaction\u4f20\u8f93\u6210\u529f\u3002
try_put()\u00a0\u662f\u4e00\u4e2afunction\uff0c\u4e0d\u4f1a\u963b\u585e\u5f53\u524d\u8fdb\u7a0b\uff0c\u4e0d\u7ba1transaction\u4f20\u8f93\u662f\u5426\u5b8c\u6210\u90fd\u4f1a\u8fd4\u56de\u3002
can_put()\u00a0\u662f\u4e00\u4e2afunction\uff0c\u4e0d\u4f1a\u963b\u585e\u5f53\u524d\u8fdb\u7a0b\uff0c\u4e0d\u53d1\u751ftransaction\u4f20\u8f93\uff0c\u53ea\u662f\u68c0\u9a8c\u5bf9\u65b9\u662f\u5426\u51c6\u5907\u597d\u4e86\u63a5\u53d7\u3002
get()\u3001peek()\u4e0eput()\u7c7b\u4f3c\uff1btry_get()\u3001try_peek()\u4e0etry_put()\u7c7b\u4f3c\uff1bcan_get()\u3001can_peek()\u4e0ecan_put()\u7c7b\u4f3c\u3002

\u5bf9\u4e8eanalysis_port\u548canalysis_export\u6765\u8bf4\uff0c\u6ca1\u6709\u963b\u585e\u548c\u975e\u963b\u585e\u7684\u6982\u5ff5\u3002\u53ea\u6709\u4e00\u79cd\u64cd\u4f5c\uff1awrite\u3002

\u4ece\u529f\u80fd\u4e0a\u6765\u770b export\u548cport\u7684\u529f\u80fd\u662f\u4e00\u6837\u7684\uff0c\u901a\u5e38export\u4f5c\u4e3a\u4e2d\u95f4\u7aef\u53e3\u4f7f\u7528\u3002
\u9700\u5728import\u4e2d\u91cd\u8f7d\u5b9e\u73b0<\/strong>\u8868\u683c\u4e2d\u7684\u5bf9\u5e94\u65b9\u6cd5<\/strong>\uff0c\u5e76\u901a\u8fc7\u53d1\u9001\u65b9\u7684 port\u540d.\u65b9\u6cd5 \u8c03\u7528\u3002
\u56e0\u6b64\u53ea\u6709import\u624d\u80fd\u4f5c\u4e3a\u8fde\u63a5\u5173\u7cfb\u7684\u7ec8\u70b9\u3002<\/p>\n<\/div>\n<\/div>\n\n\n\n

\n
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4. FIFO<\/h2>\n\n\n\n
\"\"<\/figure>\n\n\n\n

peek\u7aef\u53e3\u4e0eget\u76f8\u4f3c\uff0c\u5176\u6570\u636e\u6d41\u3001\u63a7\u5236\u6d41\u90fd\u76f8\u4f3c\uff0c\u552f\u4e00\u7684\u533a\u522b\u5728\u4e8e\u5f53get\u4efb\u52a1\u88ab\u8c03\u7528\u65f6\uff0cFIFO\u5185\u90e8\u7f13\u5b58\u4e2d\u4f1a\u5c11\u4e00\u4e2atransaction\uff0c\u800c peek\u88ab\u8c03\u7528\u65f6\uff0cFIFO\u4f1a\u628atransaction\u590d\u5236\u4e00\u4efd\u53d1\u9001\u51fa\u53bb\uff0c\u5176\u5185\u90e8\u7f13\u5b58\u4e2d\u7684transaction\u6570\u91cf\u5e76\u4e0d\u4f1a\u51cf\u5c11\u3002<\/p>\n\n\n\n

FIFO\u7684\u7c7b\u578b\u6709\u4e24\u79cd\uff0c\u4e00\u79cd\u662f\u4e0a\u56fe\u4e2d\u7684uvm_tlm_analysis_fifo\uff0c\u53e6\u5916\u4e00\u79cd\u662fuvm_tlm_fifo\u3002\u8fd9\u4e24\u8005\u7684\u552f\u4e00\u5dee\u522b\u5728\u4e8e\u524d\u8005\u6709\u4e00\u4e2a analysis_export\u7aef\u53e3\uff0c\u5e76\u4e14\u6709\u4e00\u4e2awrite\u51fd\u6570\uff0c\u800c\u540e\u8005\u6ca1\u6709\u3002<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

fifo\u7684\u8c03\u8bd5\u51fd\u6570<\/strong><\/p>\n\n\n\n

\u51fd\u6570\u540d<\/td>\u7528\u9014<\/td><\/tr>
used()<\/td>\u7528\u4e8e\u67e5\u8be2FIFO\u7f13\u5b58\u4e2d\u6709\u591a\u5c11transaction\u3002<\/td><\/tr>
is_empty()<\/td>\u7528\u4e8e\u5224\u65ad\u5f53\u524dFIFO\u7f13\u5b58\u662f\u5426\u4e3a\u7a7a\u3002<\/td><\/tr>
is_full()<\/td>\u7528\u4e8e\u5224\u65ad\u5f53\u524dFIFO\u7f13\u5b58\u662f\u5426\u5df2\u7ecf\u6ee1\u4e86\u3002<\/td><\/tr>
flush()<\/td>\u7528\u4e8e\u6e05\u7a7aFIFO\u7684\u7f13\u5b58\u3002<\/td><\/tr>
new<\/td>\"\"
fifo\u672c\u8d28\u4e0a\u662f\u4e2acomponent\uff0c\u524d\u4e24\u4e2a\u53c2\u6570\u4e0ecomponet new\u51fd\u6570\u4e2d\u53c2\u6570\u4e00\u81f4\u3002\u7b2c\u4e09\u4e2a\u53c2\u6570\u7528\u4e8e\u8bbe\u5b9aFIFO\u7f13\u5b58\u7684\u4e0a\u9650\uff0c\u9ed8\u8ba4\u4e3a1\u3002\u82e5\u8981\u628a\u7f13\u5b58\u8bbe\u7f6e\u4e3a\u65e0\u9650\u5927\uff0c\u5219\u5c06\u4f20\u5165\u7684size\u53c2\u6570\u8bbe\u7f6e\u4e3a0\u3002<\/td><\/tr>
size()<\/td>\u8fd4\u56deFIFO\u7f13\u5b58\u7684\u4e0a\u9650\u3002<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

\u4e00\u822c\u6765\u8bf4\uff0c\u4f7f\u7528 uvm_analysis_port\u3001uvm_tlm_analysis_fifo\u3001uvm_analysis_imp \u5373\u53ef\u3002<\/strong><\/p>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

1. \u4ec0\u4e48\u662fTLM TLM\u662fTransaction Level Modeling\uff08\u4e8b\u52a1\u7ea7\u5efa\u6a21\uff09\uff0c\u4e3a\u7ec4\u4ef6\u4e4b\u95f4\u7684\u901a … <\/p>\n

\u7ee7\u7eed\u9605\u8bfb\u201cUVM\uff08\u4e8c\uff09\u2014\u2014TLM\u901a\u4fe1\u201d<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-97","post","type-post","status-publish","format-standard","hentry","category-uvm"],"_links":{"self":[{"href":"http:\/\/www.cywang.work\/index.php\/wp-json\/wp\/v2\/posts\/97","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.cywang.work\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.cywang.work\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.cywang.work\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.cywang.work\/index.php\/wp-json\/wp\/v2\/comments?post=97"}],"version-history":[{"count":1,"href":"http:\/\/www.cywang.work\/index.php\/wp-json\/wp\/v2\/posts\/97\/revisions"}],"predecessor-version":[{"id":103,"href":"http:\/\/www.cywang.work\/index.php\/wp-json\/wp\/v2\/posts\/97\/revisions\/103"}],"wp:attachment":[{"href":"http:\/\/www.cywang.work\/index.php\/wp-json\/wp\/v2\/media?parent=97"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.cywang.work\/index.php\/wp-json\/wp\/v2\/categories?post=97"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.cywang.work\/index.php\/wp-json\/wp\/v2\/tags?post=97"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}