{"id":97,"date":"2023-10-23T01:05:56","date_gmt":"2023-10-22T17:05:56","guid":{"rendered":"http:\/\/152.136.53.188\/?p=97"},"modified":"2025-05-03T09:58:44","modified_gmt":"2025-05-03T01:58:44","slug":"linuxspi","status":"publish","type":"post","link":"https:\/\/www.xuzhe.tj.cn\/index.php\/2023\/10\/23\/linuxspi\/","title":{"rendered":"Linux\u7cfb\u7edf\u4e2d\u7684SPI\u901a\u4fe1\u5b9e\u73b0"},"content":{"rendered":"<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img loading=\"lazy\" decoding=\"async\" width=\"624\" height=\"757\" src=\"https:\/\/xuzhe.tj.cn\/wp-content\/uploads\/2023\/10\/2287045-20210613164105647-459061754.png\" alt=\"2287045-20210613164105647-459061754.png\" class=\"wp-image-96\" srcset=\"https:\/\/www.xuzhe.tj.cn\/wp-content\/uploads\/2023\/10\/2287045-20210613164105647-459061754.png 624w, https:\/\/www.xuzhe.tj.cn\/wp-content\/uploads\/2023\/10\/2287045-20210613164105647-459061754-247x300.png 247w\" sizes=\"auto, (max-width: 624px) 100vw, 624px\" \/><\/figure>\n<\/div>\n\n<p class=\"has-text-align-center\">\u56fe Linux\u4e2d\u7684SPI\u901a\u4fe1\u6846\u67b6<\/p>\n\n\n<p>\u5728Linux\u4e2d\uff0cSPI\u901a\u4fe1\u7684\u5b9e\u73b0\u6d89\u53ca\u5230\u591a\u5c42\u8f6f\u4ef6\u6846\u67b6\uff1a<\/p>\n\n<!--more-->\n\n<ul class=\"wp-block-list\">\n<li><strong>\u5e94\u7528\u5c42\uff08User Space\uff09<\/strong>: \u5728\u8fd9\u4e00\u5c42\uff0c\u7528\u6237\u53ef\u4ee5\u7f16\u5199\u5e94\u7528\u7a0b\u5e8f\u6765\u4e0eSPI\u8bbe\u5907\u901a\u4fe1\u3002\u5e94\u7528\u7a0b\u5e8f\u901a\u8fc7\u7cfb\u7edf\u8c03\u7528\u3001\u5e93\u51fd\u6570\u6216\u7279\u5b9a\u7684API\u4e0e\u9a71\u52a8\u5c42\u8fdb\u884c\u4ea4\u4e92\u3002<\/li>\n\n\n\n<li><strong>spidev\u9a71\u52a8<\/strong>: \u4f4d\u4e8e\u7528\u6237\u7a7a\u95f4\u4e0e\u6838\u5fc3\u7a7a\u95f4\u4e4b\u95f4\uff0c\u5b83\u63d0\u4f9b\u4e86\u4e00\u4e2a\u7528\u6237\u7a7a\u95f4\u63a5\u53e3\uff0c\u4f7f\u5e94\u7528\u7a0b\u5e8f\u80fd\u591f\u76f4\u63a5\u4e0eSPI\u8bbe\u5907\u8fdb\u884c\u4ea4\u4e92\u3002\u901a\u8fc7<code>spidev.c<\/code>\u6587\u4ef6\u5b9e\u73b0\u3002<\/li>\n\n\n\n<li><strong>\u7279\u5b9a\u7684SPI\u8bbe\u5907\u9a71\u52a8<\/strong>: \u9488\u5bf9\u7279\u5b9a\u7684SPI\u5916\u8bbe\uff08\u5982\u4f20\u611f\u5668\u6216\u901a\u4fe1\u6a21\u5757\uff09\uff0c\u5f00\u53d1\u4eba\u5458\u53ef\u80fd\u9700\u8981\u7f16\u5199\u6216\u4f7f\u7528\u7279\u5b9a\u7684\u8bbe\u5907\u9a71\u52a8\u3002<\/li>\n\n\n\n<li><strong>SPI\u6838\u5fc3\uff08spi core\uff09<\/strong>: \u8fd9\u662fSPI\u6846\u67b6\u7684\u6838\u5fc3\u90e8\u5206\uff0c\u8d1f\u8d23\u534f\u8c03\u5e76\u7ba1\u7406\u6240\u6709\u7684SPI\u63a7\u5236\u5668\u548c\u8bbe\u5907\u9a71\u52a8\u3002\u5b83\u4e3a\u4e0a\u5c42\u63d0\u4f9b\u7edf\u4e00\u7684API\uff0c\u5e76\u628a\u4e0a\u5c42\u7684\u8bf7\u6c42\u8f6c\u53d1\u7ed9\u76f8\u5e94\u7684SPI\u63a7\u5236\u5668\u9a71\u52a8\u3002<\/li>\n\n\n\n<li><strong>SPI\u63a7\u5236\u5668\u9a71\u52a8<\/strong>: \u8fd9\u662f\u4e3aSPI\u63a7\u5236\u5668\u786c\u4ef6\u7f16\u5199\u7684\u9a71\u52a8\u7a0b\u5e8f\u3002\u5b83\u5b9e\u73b0\u4e86\u4e0e\u7279\u5b9aSPI\u63a7\u5236\u5668\u786c\u4ef6\u8fdb\u884c\u901a\u4fe1\u7684\u6240\u6709\u5e95\u5c42\u7ec6\u8282\u3002\u8fd9\u4e00\u5c42\u5c06SPI\u6838\u5fc3\u7684\u8bf7\u6c42\u8f6c\u5316\u4e3a\u5bf9\u786c\u4ef6\u7684\u5b9e\u9645\u64cd\u4f5c\u3002<\/li>\n\n\n\n<li><strong>\u786c\u4ef6\u5c42\uff1a<\/strong><\/li>\n\n\n\n<li><strong>SPI\u63a7\u5236\u5668\u786c\u4ef6<\/strong>: \u8fd9\u662f\u5b9e\u73b0SPI\u534f\u8bae\u7684\u786c\u4ef6\u6a21\u5757\uff0c\u8d1f\u8d23\u5728\u7269\u7406\u5c42\u9762\u4e0e\u5916\u90e8\u8bbe\u5907\u8fdb\u884c\u901a\u8baf\u3002<\/li>\n\n\n\n<li><strong>SPI\u5916\u8bbe\u8bbe\u5907<\/strong>: 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class=\"wp-block-list\">\n<li>\u5728\u7528\u6237\u7a7a\u95f4\u5f00\u53d1SPI\u9a71\u52a8\u7a0b\u5e8f\uff1a\u5728\u7528\u6237\u7a7a\u95f4\u5f00\u53d1\u610f\u5473\u7740\u4f7f\u7528\u5982<code>spidev<\/code>\u8fd9\u6837\u7684\u63a5\u53e3\u6765\u4e0eSPI\u8bbe\u5907\u8fdb\u884c\u4ea4\u4e92\u3002\u7528\u6237\u7a7a\u95f4\u9a71\u52a8\u7a0b\u5e8f\u66f4\u50cf\u662f\u5e94\u7528\u7a0b\u5e8f\uff0c\u5b83\u4f7f\u7528\u7cfb\u7edf\u8c03\u7528\u6216\u5e93\u6765\u8bbf\u95ee\u786c\u4ef6\u3002<\/li>\n\n\n\n<li><strong>\u5229<\/strong>\uff1a<strong>\u5f00\u53d1\u7b80\u5355<\/strong>: \u5bf9\u4e8e\u65b0\u624b\u6765\u8bf4\uff0c\u7528\u6237\u7a7a\u95f4\u7684\u5f00\u53d1\u901a\u5e38\u66f4\u7b80\u5355\uff0c\u66f4\u4e0d\u5bb9\u6613\u51fa\u9519\u3002<strong>\u9694\u79bb\u6027<\/strong>: \u5982\u679c\u9a71\u52a8\u7a0b\u5e8f\u51fa\u73b0\u9519\u8bef\uff0c\u5b83\u4e0d\u592a\u53ef\u80fd\u5f71\u54cd\u5230\u6574\u4e2a\u7cfb\u7edf\u3002<\/li>\n\n\n\n<li><strong>\u5f0a<\/strong>\uff1a<strong>\u529f\u80fd\u9650\u5236<\/strong>: \u67d0\u4e9b\u4f4e\u7ea7\u6216\u7279\u5b9a\u7684\u786c\u4ef6\u529f\u80fd\u53ef\u80fd\u4e0d\u5bb9\u6613\u5728\u7528\u6237\u7a7a\u95f4\u8bbf\u95ee\u3002<strong>\u6027\u80fd\u9650\u5236<\/strong>: \u7531\u4e8e\u9700\u8981\u8fdb\u884c\u591a\u6b21\u7684\u4e0a\u4e0b\u6587\u5207\u6362\u548c\u7cfb\u7edf\u8c03\u7528\uff0c\u7528\u6237\u7a7a\u95f4\u7684\u9a71\u52a8\u7a0b\u5e8f\u53ef\u80fd\u4e0d\u5982\u5185\u6838\u7a7a\u95f4\u7684\u9a71\u52a8\u7a0b\u5e8f\u90a3\u4e48\u9ad8\u6548\u3002<\/li>\n<\/ul>\n\n\n<ul class=\"wp-block-list\">\n<li>\u5728\u5185\u6838\u7a7a\u95f4\u5f00\u53d1SPI\u9a71\u52a8\u7a0b\u5e8f\uff1a\u5728\u5185\u6838\u7a7a\u95f4\u5f00\u53d1\u9a71\u52a8\u7a0b\u5e8f\u610f\u5473\u7740\u60a8\u76f4\u63a5\u5728Linux\u5185\u6838\u4e2d\u7f16\u5199\u548c\u8fd0\u884c\u4ee3\u7801\u3002\u8fd9\u901a\u5e38\u6d89\u53ca\u5230\u4e3a\u7279\u5b9a\u7684SPI\u8bbe\u5907\u7f16\u5199\u6216\u4fee\u6539\u5185\u6838\u6a21\u5757\u3002<\/li>\n\n\n\n<li><strong>\u5229\uff1a<\/strong><strong>\u6027\u80fd<\/strong>\uff1a \u7531\u4e8e\u5c11\u4e86\u7528\u6237\u7a7a\u95f4\u5230\u5185\u6838\u7a7a\u95f4\u7684\u4e0a\u4e0b\u6587\u5207\u6362\uff0c\u901a\u5e38\u53ef\u4ee5\u5b9e\u73b0\u66f4\u9ad8\u7684\u6027\u80fd\u3002<strong>\u529f\u80fd\u5168\u9762<\/strong>: \u5185\u6838\u7a7a\u95f4\u5141\u8bb8\u5b8c\u5168\u8bbf\u95ee\u6240\u6709\u786c\u4ef6\u529f\u80fd\uff0c\u4e0d\u53d7\u9650\u5236\u3002<\/li>\n\n\n\n<li><strong>\u5f0a<\/strong>\uff1a<strong>\u5f00\u53d1\u590d\u6742\u5ea6<\/strong>\uff1a \u5185\u6838\u7f16\u7a0b\u901a\u5e38\u6bd4\u7528\u6237\u7a7a\u95f4\u7f16\u7a0b\u66f4\u590d\u6742\uff0c\u6709\u66f4\u591a\u7684\u9677\u9631\u3002<strong>\u5b89\u5168\u98ce\u9669<\/strong>: \u9519\u8bef\u7684\u5185\u6838\u9a71\u52a8\u53ef\u80fd\u5bfc\u81f4\u7cfb\u7edf\u5d29\u6e83\u6216\u5176\u4ed6\u4e0d\u7a33\u5b9a\u7684\u884c\u4e3a\u3002<strong>\u5f00\u53d1\u5468\u671f<\/strong>: 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Linux\u4e2d\u7684SPI\u901a\u4fe1\u6846\u67b6 \u5728Linux\u4e2d\uff0cSPI\u901a\u4fe1&#8230;<\/p>\n","protected":false},"author":1,"featured_media":537,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[10],"tags":[13,9,12],"class_list":["post-97","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-10","tag-linux","tag-openwrt","tag-spi"],"_links":{"self":[{"href":"https:\/\/www.xuzhe.tj.cn\/index.php\/wp-json\/wp\/v2\/posts\/97","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.xuzhe.tj.cn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.xuzhe.tj.cn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.xuzhe.tj.cn\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.xuzhe.tj.cn\/index.php\/wp-json\/wp\/v2\/comments?post=97"}],"version-history":[{"count":7,"href":"https:\/\/www.xuzhe.tj.cn\/index.php\/wp-json\/wp\/v2\/posts\/97\/revisions"}],"predecessor-version":[{"id":538,"href":"https:\/\/www.xuzhe.tj.cn\/index.php\/wp-json\/wp\/v2\/posts\/97\/revisions\/538"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.xuzhe.tj.cn\/index.php\/wp-json\/wp\/v2\/media\/537"}],"wp:attachment":[{"href":"https:\/\/www.xuzhe.tj.cn\/index.php\/wp-json\/wp\/v2\/media?parent=97"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.xuzhe.tj.cn\/index.php\/wp-json\/wp\/v2\/categories?post=97"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.xuzhe.tj.cn\/index.php\/wp-json\/wp\/v2\/tags?post=97"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}