{"id":46958,"date":"2023-10-01T11:17:01","date_gmt":"2023-10-01T03:17:01","guid":{"rendered":"https:\/\/www.techphant.cn\/?p=46958"},"modified":"2023-10-01T11:17:01","modified_gmt":"2023-10-01T03:17:01","slug":"ucysmdp","status":"publish","type":"post","link":"https:\/\/www.techphant.cn\/blog\/46958.html","title":{"rendered":"UART\u91c7\u7528\u4ec0\u4e48\u7535\u5e73\uff1f"},"content":{"rendered":"

  UART\uff08Universal Asynchronous Receiver\/Transmitter\uff09\u662f\u4e00\u79cd\u901a\u7528\u7684\u5f02\u6b65\u6536\u53d1\u5668\uff0c\u5b83\u53ef\u4ee5\u5c06\u4e24\u4e2a\u4e0d\u540c\u7684\u8bbe\u5907\u4e4b\u95f4\u7684\u6570\u636e\u8fdb\u884c\u8f6c\u6362\uff0c\u4ece\u800c\u5b9e\u73b0\u8bbe\u5907\u4e4b\u95f4\u7684\u901a\u4fe1\u3002UART\u91c7\u7528\u4ec0\u4e48\u7535\u5e73\u662f\u4e00\u4e2a\u91cd\u8981\u7684\u95ee\u9898\uff0c\u56e0\u4e3a\u5b83\u53ef\u4ee5\u5f71\u54cdUART\u7684\u6027\u80fd\u548c\u53ef\u9760\u6027\u3002\u672c\u6587\u5c06\u4ecb\u7ecdUART\u91c7\u7528\u4ec0\u4e48\u7535\u5e73\uff0c\u4ee5\u53ca\u5982\u4f55\u9009\u62e9\u6700\u5408\u9002\u7684\u7535\u5e73\u3002<\/p>\n

UART\u91c7\u7528\u4ec0\u4e48\u7535\u5e73\uff1f<\/h2>\n

  UART\u91c7\u7528\u7684\u7535\u5e73\u6709\u4e24\u79cd\uff0c\u4e00\u79cd\u662fTTL\u7535\u5e73\uff0c\u53e6\u4e00\u79cd\u662fRS-232\u7535\u5e73\u3002TTL\u7535\u5e73\u662f\u4e00\u79cd\u6807\u51c6\u7684TTL\u7535\u5e73\uff0c\u5b83\u7684\u6709\u6548\u7535\u5e73\u662f0V\u52305V\u4e4b\u95f4\uff0c\u6700\u4f4e\u6709\u6548\u7535\u5e73\u662f0V\uff0c\u6700\u9ad8\u6709\u6548\u7535\u5e73\u662f5V\u3002RS-232\u7535\u5e73\u662f\u4e00\u79cd\u6807\u51c6\u7684RS-232\u7535\u5e73\uff0c\u5b83\u7684\u6709\u6548\u7535\u5e73\u662f-12V\u523012V\u4e4b\u95f4\uff0c\u6700\u4f4e\u6709\u6548\u7535\u5e73\u662f-12V\uff0c\u6700\u9ad8\u6709\u6548\u7535\u5e73\u662f12V\u3002<\/p>\n

  TTL\u7535\u5e73\u662f\u4e00\u79cd\u4f4e\u538b\u7535\u5e73\uff0c\u5b83\u5177\u6709\u4f4e\u529f\u8017\u548c\u9ad8\u6548\u7387\u7684\u4f18\u70b9\uff0c\u4f46\u662f\u5b83\u7684\u4f20\u8f93\u8ddd\u79bb\u8f83\u77ed\uff0c\u4e00\u822c\u4e0d\u8d85\u8fc715\u7c73\u3002RS-232\u7535\u5e73\u662f\u4e00\u79cd\u9ad8\u538b\u7535\u5e73\uff0c\u5b83\u5177\u6709\u9ad8\u53ef\u9760\u6027\u548c\u9ad8\u4f20\u8f93\u8ddd\u79bb\u7684\u4f18\u70b9\uff0c\u4f46\u662f\u5b83\u7684\u529f\u8017\u8f83\u9ad8\uff0c\u800c\u4e14\u53d7\u5230\u73af\u5883\u5e72\u6270\u8f83\u5927\u3002<\/p>\n

\u5982\u4f55\u9009\u62e9\u6700\u5408\u9002\u7684\u7535\u5e73\uff1f<\/h2>\n

  \u9009\u62e9\u6700\u5408\u9002\u7684\u7535\u5e73\u9700\u8981\u8003\u8651\u4ee5\u4e0b\u51e0\u4e2a\u65b9\u9762\uff1a<\/p>\n

  1. \u4f20\u8f93\u8ddd\u79bb<\/h3>\n

  \u5982\u679c\u4f20\u8f93\u8ddd\u79bb\u8f83\u8fdc\uff0c\u5219\u5e94\u9009\u62e9RS-232\u7535\u5e73\uff0c\u56e0\u4e3a\u5b83\u7684\u4f20\u8f93\u8ddd\u79bb\u53ef\u8fbe\u51e0\u767e\u7c73\uff1b\u5982\u679c\u4f20\u8f93\u8ddd\u79bb\u8f83\u77ed\uff0c\u5219\u53ef\u4ee5\u9009\u62e9TTL\u7535\u5e73\uff0c\u56e0\u4e3a\u5b83\u7684\u4f20\u8f93\u8ddd\u79bb\u4e00\u822c\u4e0d\u8d85\u8fc715\u7c73\u3002<\/p>\n

  2. \u529f\u8017<\/h3>\n

  \u5982\u679c\u529f\u8017\u8981\u6c42\u8f83\u9ad8\uff0c\u5219\u5e94\u9009\u62e9TTL\u7535\u5e73\uff0c\u56e0\u4e3a\u5b83\u7684\u529f\u8017\u8f83\u4f4e\uff1b\u5982\u679c\u529f\u8017\u8981\u6c42\u4e0d\u9ad8\uff0c\u5219\u53ef\u4ee5\u9009\u62e9RS-232\u7535\u5e73\uff0c\u56e0\u4e3a\u5b83\u7684\u529f\u8017\u8f83\u9ad8\u3002<\/p>\n

  3. \u73af\u5883\u5e72\u6270<\/h3>\n

  \u5982\u679c\u73af\u5883\u5e72\u6270\u8f83\u5927\uff0c\u5219\u5e94\u9009\u62e9RS-232\u7535\u5e73\uff0c\u56e0\u4e3a\u5b83\u7684\u53ef\u9760\u6027\u8f83\u9ad8\uff1b\u5982\u679c\u73af\u5883\u5e72\u6270\u8f83\u5c0f\uff0c\u5219\u53ef\u4ee5\u9009\u62e9TTL\u7535\u5e73\uff0c\u56e0\u4e3a\u5b83\u7684\u53ef\u9760\u6027\u8f83\u4f4e\u3002<\/p>\n

\u603b\u7ed3<\/h2>\n

  UART\u91c7\u7528\u7684\u7535\u5e73\u6709TTL\u7535\u5e73\u548cRS-232\u7535\u5e73\uff0c\u5b83\u4eec\u7684\u6709\u6548\u7535\u5e73\u548c\u6027\u80fd\u7279\u6027\u5404\u4e0d\u76f8\u540c\u3002<\/strong>\u5728\u9009\u62e9\u6700\u5408\u9002\u7684\u7535\u5e73\u65f6\uff0c\u5e94\u8003\u8651\u4f20\u8f93\u8ddd\u79bb\u3001\u529f\u8017\u548c\u73af\u5883\u5e72\u6270\u7b49\u56e0\u7d20\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

UART\uff08UniversalAsynchronousReceiver\/Transmitter\uff09\u662f\u4e00\u79cd\u901a\u7528\u7684\u5f02\u6b65\u6536\u53d1\u5668\uff0c\u5b83\u53ef\u4ee5\u5c06\u4e24\u4e2a\u4e0d\u540c\u7684\u8bbe\u5907\u4e4b\u95f4\u7684\u6570\u636e\u8fdb\u884c\u8f6c\u6362\uff0c\u4ece\u800c\u5b9e<\/p>\n","protected":false},"author":1,"featured_media":4132,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"default","ast-global-header-display":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","footnotes":""},"categories":[36],"tags":[145],"class_list":["post-46958","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-uart"],"_links":{"self":[{"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/posts\/46958","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/comments?post=46958"}],"version-history":[{"count":0,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/posts\/46958\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/media\/4132"}],"wp:attachment":[{"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/media?parent=46958"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/categories?post=46958"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/tags?post=46958"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}