{"id":33887,"date":"2023-06-10T11:30:25","date_gmt":"2023-06-10T03:30:25","guid":{"rendered":"https:\/\/docs.pingcode.com\/?p=33887"},"modified":"2023-07-31T00:29:18","modified_gmt":"2023-07-30T16:29:18","slug":"database-can%e4%b8%ad%e7%9a%84update-bit%e6%98%af%e4%bb%80%e4%b9%88%e5%90%ab%e4%b9%89","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/33887.html","title":{"rendered":"Database CAN\u4e2d\u7684Update Bit\u662f\u4ec0\u4e48\u542b\u4e49"},"content":{"rendered":"<blockquote class=\"wp-block-quote\">\n<p>\u5728Controller Area Network (CAN) \u6570\u636e\u5e93\u4e2d\uff0cUpdate Bit \u662f\u7528\u4e8e\u8868\u793a CAN \u6570\u636e\u5e27\u7684\u66f4\u65b0\u72b6\u6001\u7684\u4f4d\u3002Update Bit \u7528\u4e8e\u6307\u793a\u6570\u636e\u57df\u4e2d\u5bf9\u5e94\u5b57\u8282\u7684\u6570\u636e\u662f\u5426\u88ab\u66f4\u65b0\u3002<\/p>\n<\/blockquote>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img fetchpriority=\"high\" alt=\"\" class=\"wp-image-33889\" decoding=\"async\" height=\"421\" sizes=\"(max-width: 680px) 100vw, 680px\" src=\"https:\/\/cdn-docs.pingcode.com\/wp-content\/uploads\/2023\/06\/\u95ee\u7b54\u6a21\u677f680-\u00d7-421-\u50cf\u7d20-2023-06-10T112736.219-1.jpg?x-oss-process=image\/auto-orient,1\/format,webp\" srcset=\"https:\/\/cdn-docs.pingcode.com\/wp-content\/uploads\/2023\/06\/\u95ee\u7b54\u6a21\u677f680-\u00d7-421-\u50cf\u7d20-2023-06-10T112736.219-1.jpg?x-oss-process=image\/auto-orient,1\/format,webp 680w, https:\/\/cdn-docs.pingcode.com\/wp-content\/uploads\/2023\/06\/\u95ee\u7b54\u6a21\u677f680-\u00d7-421-\u50cf\u7d20-2023-06-10T112736.219-1-300x186.jpg 300w\" width=\"680\"\/><\/figure>\n<\/div>\n<h2 class=\"wp-block-heading\">\u4e00\u3001Database CAN\u4e2d\u7684Update Bit\u7684\u542b\u4e49<\/h2>\n<p>\u5728Controller Area Network (CAN) \u6570\u636e\u5e93\u4e2d\uff0cUpdate Bit \u662f\u7528\u4e8e\u8868\u793a CAN \u6570\u636e\u5e27\u7684\u66f4\u65b0\u72b6\u6001\u7684\u4f4d\u3002<\/p>\n<p>\u5728 CAN \u603b\u7ebf\u901a\u4fe1\u4e2d\uff0c\u8282\u70b9\u4e4b\u95f4\u901a\u8fc7\u6570\u636e\u5e27\u8fdb\u884c\u4fe1\u606f\u4ea4\u6362\u3002\u6bcf\u4e2a\u6570\u636e\u5e27\u7531\u6807\u8bc6\u7b26\uff08Identifier\uff09\u548c\u6570\u636e\u57df\uff08Data Field\uff09\u7ec4\u6210\u3002\u5176\u4e2d\uff0c\u6570\u636e\u57df\u4e2d\u7684\u6bcf\u4e00\u4e2a\u5b57\u8282\u90fd\u6709\u4e00\u4e2a\u5bf9\u5e94\u7684 Update Bit\u3002<\/p>\n<p>Update Bit \u7528\u4e8e\u6307\u793a\u6570\u636e\u57df\u4e2d\u5bf9\u5e94\u5b57\u8282\u7684\u6570\u636e\u662f\u5426\u88ab\u66f4\u65b0\u3002\u5f53\u6570\u636e\u57df\u4e2d\u7684\u67d0\u4e2a\u5b57\u8282\u53d1\u751f\u53d8\u5316\u65f6\uff0c\u5bf9\u5e94\u7684 Update Bit \u88ab\u8bbe\u7f6e\u4e3a 1\uff0c\u8868\u793a\u8be5\u5b57\u8282\u7684\u6570\u636e\u5df2\u88ab\u66f4\u65b0\u3002\u5982\u679c\u6570\u636e\u57df\u4e2d\u7684\u67d0\u4e2a\u5b57\u8282\u6ca1\u6709\u53d1\u751f\u53d8\u5316\uff0c\u5219\u5bf9\u5e94\u7684 Update Bit \u4fdd\u6301\u4e3a 0\u3002<\/p>\n<p>\u901a\u8fc7 Update Bit\uff0c\u63a5\u6536\u65b9\u53ef\u4ee5\u4e86\u89e3\u6570\u636e\u57df\u4e2d\u54ea\u4e9b\u5b57\u8282\u7684\u6570\u636e\u5df2\u7ecf\u88ab\u66f4\u65b0\uff0c\u4ece\u800c\u53ef\u4ee5\u91c7\u53d6\u76f8\u5e94\u7684\u5904\u7406\u64cd\u4f5c\u3002\u8fd9\u5bf9\u4e8e\u5b9e\u65f6\u6570\u636e\u4f20\u8f93\u548c\u72b6\u6001\u76d1\u6d4b\u975e\u5e38\u91cd\u8981\uff0c\u53ef\u4ee5\u63d0\u9ad8\u901a\u4fe1\u6548\u7387\u548c\u53ef\u9760\u6027\u3002<\/p>\n<p>Controller Area Network (CAN) \u6570\u636e\u5e93\u662f\u4e00\u79cd\u7528\u4e8e\u5b58\u50a8\u548c\u7ba1\u7406\u4e0e Controller Area Network (CAN) \u603b\u7ebf\u76f8\u5173\u7684\u6570\u636e\u7684\u6570\u636e\u5e93\u7cfb\u7edf\u3002CAN \u662f\u4e00\u79cd\u5e7f\u6cdb\u5e94\u7528\u4e8e\u6c7d\u8f66\u3001\u5de5\u4e1a\u63a7\u5236\u548c\u5176\u4ed6\u9886\u57df\u7684\u4e32\u884c\u901a\u4fe1\u534f\u8bae\uff0c\u7528\u4e8e\u5728\u4e0d\u540c\u7684\u8bbe\u5907\u4e4b\u95f4\u8fdb\u884c\u53ef\u9760\u7684\u6570\u636e\u4f20\u8f93\u3002<\/p>\n<p>CAN \u6570\u636e\u5e93\u5141\u8bb8\u7528\u6237\u5b9a\u4e49\u548c\u5b58\u50a8\u4e0e CAN \u603b\u7ebf\u76f8\u5173\u7684\u4fe1\u606f\uff0c\u5982 CAN \u6d88\u606f\u3001\u4fe1\u53f7\u3001\u8282\u70b9\u548c\u7f51\u7edc\u914d\u7f6e\u7b49\u3002\u5b83\u63d0\u4f9b\u4e86\u4e00\u4e2a\u7ed3\u6784\u5316\u7684\u65b9\u5f0f\u6765\u63cf\u8ff0\u548c\u7ba1\u7406 CAN \u603b\u7ebf\u4e0a\u7684\u6570\u636e\uff0c\u5e76\u4e3a\u5f00\u53d1\u4eba\u5458\u548c\u7cfb\u7edf\u96c6\u6210\u8005\u63d0\u4f9b\u4e86\u65b9\u4fbf\u7684\u5de5\u5177\u548c\u63a5\u53e3\u6765\u5904\u7406 CAN \u6570\u636e\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u5728Controller Area Network (CAN) \u6570\u636e\u5e93\u4e2d\uff0cUpdate Bit \u662f\u7528\u4e8e\u8868\u793a CA [&hellip;]","protected":false},"author":1,"featured_media":33888,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[37],"tags":[558],"acf":[],"_links":{"self":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/33887"}],"collection":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/comments?post=33887"}],"version-history":[{"count":0,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/33887\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/33888"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=33887"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=33887"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=33887"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}