{"id":43349,"date":"2023-09-27T22:30:29","date_gmt":"2023-09-27T14:30:29","guid":{"rendered":"https:\/\/www.techphant.cn\/?p=43349"},"modified":"2023-09-27T22:30:29","modified_gmt":"2023-09-27T14:30:29","slug":"shrdqb","status":"publish","type":"post","link":"https:\/\/www.techphant.cn\/blog\/43349.html","title":{"rendered":"SPI\u548cRS485\u7684\u533a\u522b"},"content":{"rendered":"<p>&emsp;&emsp;SPI\u548cRS485\u662f\u4e24\u79cd\u4e0d\u540c\u7684\u7535\u5b50\u901a\u4fe1\u6280\u672f\uff0c\u5b83\u4eec\u90fd\u53ef\u4ee5\u7528\u4e8e\u5728\u8ba1\u7b97\u673a\u4e4b\u95f4\u4f20\u8f93\u6570\u636e\uff0c\u4f46\u662f\u5b83\u4eec\u4e4b\u95f4\u4e5f\u6709\u4e00\u4e9b\u5dee\u5f02\u3002\u672c\u6587\u5c06\u8be6\u7ec6\u4ecb\u7ecdSPI\u548cRS485\u4e4b\u95f4\u7684\u533a\u522b\uff0c\u4ee5\u4fbf\u8bfb\u8005\u5bf9\u5b83\u4eec\u6709\u66f4\u6df1\u5165\u7684\u4e86\u89e3\u3002<\/p>\n<h2 style=\"text-align: center;\">SPI<\/h2>\n<p>&emsp;&emsp;SPI\uff08Serial Peripheral Interface\uff09\u662f\u4e00\u79cd\u4e32\u884c\u63a5\u53e3\uff0c\u5b83\u53ef\u4ee5\u7528\u6765\u5728\u4e0d\u540c\u7684\u82af\u7247\u4e4b\u95f4\u4f20\u8f93\u6570\u636e\u3002\u5b83\u4f7f\u75284\u4e2a\u4fe1\u53f7\u7ebf\u6765\u5b9e\u73b0\u4f20\u8f93\uff0c\u5305\u62ec\u4e24\u4e2a\u6570\u636e\u7ebf\uff08MOSI\u548cMISO\uff09\uff0c\u4e00\u4e2a\u65f6\u949f\u7ebf\uff08SCLK\uff09\u548c\u4e00\u4e2a\u7247\u9009\u7ebf\uff08SS\uff09\u3002\u5b83\u53ef\u4ee5\u652f\u6301\u591a\u4e2a\u82af\u7247\u8fde\u63a5\u5230\u540c\u4e00\u603b\u7ebf\u4e0a\uff0c\u4f46\u662f\u5b83\u4e0d\u652f\u6301\u591a\u70b9\u8fde\u63a5\u3002<\/p>\n<h3>&emsp;&emsp;SPI\u7684\u4f18\u70b9<\/h3>\n<ul>\n<li>SPI\u652f\u6301\u9ad8\u901f\u4f20\u8f93\uff0c\u6700\u9ad8\u53ef\u4ee5\u8fbe\u523050MHz\u3002<\/li>\n<li>SPI\u7684\u4f20\u8f93\u8ddd\u79bb\u53ef\u4ee5\u8fbe\u5230\u51e0\u7c73\uff0c\u53ef\u4ee5\u6ee1\u8db3\u5927\u591a\u6570\u5e94\u7528\u573a\u666f\u7684\u9700\u6c42\u3002<\/li>\n<li>SPI\u652f\u6301\u591a\u82af\u7247\u8fde\u63a5\uff0c\u53ef\u4ee5\u5c06\u591a\u4e2a\u82af\u7247\u8fde\u63a5\u5230\u540c\u4e00\u603b\u7ebf\u4e0a\u3002<\/li>\n<li>SPI\u7684\u63a5\u53e3\u7b80\u5355\uff0c\u53ea\u9700\u89814\u4e2a\u4fe1\u53f7\u7ebf\u5c31\u53ef\u4ee5\u5b9e\u73b0\u6570\u636e\u4f20\u8f93\u3002<\/li>\n<\/ul>\n<h3>&emsp;&emsp;SPI\u7684\u7f3a\u70b9<\/h3>\n<ul>\n<li>SPI\u53ea\u652f\u6301\u70b9\u5bf9\u70b9\u7684\u8fde\u63a5\uff0c\u4e0d\u652f\u6301\u591a\u70b9\u8fde\u63a5\u3002<\/li>\n<li>SPI\u7684\u5b89\u5168\u6027\u8f83\u5dee\uff0c\u5b58\u5728\u88ab\u7a83\u542c\u7684\u98ce\u9669\u3002<\/li>\n<li>SPI\u7684\u4f20\u8f93\u8ddd\u79bb\u8f83\u77ed\uff0c\u4e0d\u80fd\u6ee1\u8db3\u4e00\u4e9b\u8fdc\u8ddd\u79bb\u7684\u5e94\u7528\u573a\u666f\u3002<\/li>\n<\/ul>\n<h2 style=\"text-align: center;\">RS485<\/h2>\n<p>&emsp;&emsp;RS485\u662f\u4e00\u79cd\u4e32\u884c\u901a\u4fe1\u6280\u672f\uff0c\u5b83\u4f7f\u75282\u4e2a\u4fe1\u53f7\u7ebf\uff08A\u548cB\uff09\u6765\u5b9e\u73b0\u6570\u636e\u4f20\u8f93\u3002\u5b83\u53ef\u4ee5\u652f\u6301\u591a\u70b9\u8fde\u63a5\uff0c\u53ef\u4ee5\u5c06\u591a\u4e2a\u82af\u7247\u8fde\u63a5\u5230\u540c\u4e00\u603b\u7ebf\u4e0a\u3002\u5b83\u53ef\u4ee5\u652f\u6301\u9ad8\u901f\u4f20\u8f93\uff0c\u6700\u9ad8\u53ef\u4ee5\u8fbe\u523010Mbps\u3002<\/p>\n<h3>&emsp;&emsp;RS485\u7684\u4f18\u70b9<\/h3>\n<ul>\n<li>RS485\u652f\u6301\u591a\u70b9\u8fde\u63a5\uff0c\u53ef\u4ee5\u5c06\u591a\u4e2a\u82af\u7247\u8fde\u63a5\u5230\u540c\u4e00\u603b\u7ebf\u4e0a\u3002<\/li>\n<li>RS485\u7684\u4f20\u8f93\u8ddd\u79bb\u53ef\u4ee5\u8fbe\u5230\u51e0\u5341\u7c73\uff0c\u53ef\u4ee5\u6ee1\u8db3\u4e00\u4e9b\u8fdc\u8ddd\u79bb\u7684\u5e94\u7528\u573a\u666f\u3002<\/li>\n<li>RS485\u652f\u6301\u9ad8\u901f\u4f20\u8f93\uff0c\u6700\u9ad8\u53ef\u4ee5\u8fbe\u523010Mbps\u3002<\/li>\n<li>RS485\u7684\u63a5\u53e3\u7b80\u5355\uff0c\u53ea\u9700\u89812\u4e2a\u4fe1\u53f7\u7ebf\u5c31\u53ef\u4ee5\u5b9e\u73b0\u6570\u636e\u4f20\u8f93\u3002<\/li>\n<\/ul>\n<h3>&emsp;&emsp;RS485\u7684\u7f3a\u70b9<\/h3>\n<ul>\n<li>RS485\u7684\u5b89\u5168\u6027\u8f83\u5dee\uff0c\u5b58\u5728\u88ab\u7a83\u542c\u7684\u98ce\u9669\u3002<\/li>\n<li>RS485\u7684\u7ebf\u8def\u5e03\u7ebf\u8f83\u590d\u6742\uff0c\u7ebf\u7f06\u7684\u5b89\u88c5\u8f83\u4e3a\u7e41\u7410\u3002<\/li>\n<li>RS485\u53ea\u652f\u6301\u70b9\u5bf9\u591a\u7684\u8fde\u63a5\uff0c\u4e0d\u652f\u6301\u591a\u4e2a\u82af\u7247\u95f4\u7684\u4ea4\u4e92\u3002<\/li>\n<\/ul>\n<h2 style=\"text-align: center;\">\u603b\u7ed3<\/h2>\n<p>&emsp;&emsp;<strong>SPI\u548cRS485\u90fd\u662f\u5e38\u7528\u7684\u7535\u5b50\u901a\u4fe1\u6280\u672f\uff0c\u5b83\u4eec\u90fd\u53ef\u4ee5\u7528\u6765\u5728\u8ba1\u7b97\u673a\u4e4b\u95f4\u4f20\u8f93\u6570\u636e\u3002<\/strong>\u4f46\u662f\u5b83\u4eec\u4e4b\u95f4\u4e5f\u6709\u4e00\u4e9b\u5dee\u5f02\uff0c\u6bd4\u5982SPI\u652f\u6301\u591a\u82af\u7247\u8fde\u63a5\uff0c\u4f46\u4e0d\u652f\u6301\u591a\u70b9\u8fde\u63a5\uff0c\u800cRS485\u652f\u6301\u591a\u70b9\u8fde\u63a5\uff0c\u4f46\u4e0d\u652f\u6301\u591a\u82af\u7247\u8fde\u63a5\u3002\u56e0\u6b64\uff0c\u5728\u9009\u62e9SPI\u548cRS485\u65f6\uff0c\u9700\u8981\u6839\u636e\u5b9e\u9645\u7684\u5e94\u7528\u573a\u666f\u6765\u8fdb\u884c\u9009\u62e9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>SPI\u548cRS485\u662f\u4e24\u79cd\u4e0d\u540c\u7684\u7535\u5b50\u901a\u4fe1\u6280\u672f\uff0c\u5b83\u4eec\u90fd\u53ef\u4ee5\u7528\u4e8e\u5728\u8ba1\u7b97\u673a\u4e4b\u95f4\u4f20\u8f93\u6570\u636e\uff0c\u4f46\u662f\u5b83\u4eec\u4e4b\u95f4\u4e5f\u6709\u4e00\u4e9b\u5dee\u5f02\u3002\u672c\u6587\u5c06\u8be6\u7ec6\u4ecb\u7ecdSPI\u548cRS485\u4e4b\u95f4\u7684\u533a\u522b\uff0c\u4ee5\u4fbf\u8bfb\u8005\u5bf9\u5b83\u4eec\u6709\u66f4\u6df1<\/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":[61],"class_list":["post-43349","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-r"],"_links":{"self":[{"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/posts\/43349","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=43349"}],"version-history":[{"count":0,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/posts\/43349\/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=43349"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/categories?post=43349"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/tags?post=43349"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}