{"id":43485,"date":"2023-09-28T23:03:42","date_gmt":"2023-09-28T15:03:42","guid":{"rendered":"https:\/\/www.techphant.cn\/?p=43485"},"modified":"2023-09-28T23:03:42","modified_gmt":"2023-09-28T15:03:42","slug":"scmsjssjcw","status":"publish","type":"post","link":"https:\/\/www.techphant.cn\/blog\/43485.html","title":{"rendered":"SPI\u4ece\u6a21\u5f0f\u63a5\u6536\u6570\u636e\u9519\u8bef"},"content":{"rendered":"<p>&emsp;&emsp;SPI\uff08Serial Peripheral Interface\uff09\u662f\u4e00\u79cd\u9ad8\u901f\u7684\u3001\u5168\u53cc\u5de5\u7684\u3001\u591a\u8def\u7684\u3001\u540c\u6b65\u7684\u3001\u4e32\u884c\u603b\u7ebf\uff0c\u5b83\u80fd\u591f\u5728\u591a\u4e2a\u8bbe\u5907\u4e4b\u95f4\u4f20\u8f93\u6570\u636e\uff0c\u662f\u4e00\u79cd\u5e38\u89c1\u7684\u6570\u636e\u4f20\u8f93\u63a5\u53e3\u3002\u4f46\u662f\uff0c\u5728\u4f7f\u7528SPI\u8fdb\u884c\u6570\u636e\u63a5\u6536\u65f6\uff0c\u5982\u679c\u4e0d\u6b63\u786e\u4f7f\u7528SPI\u4ece\u6a21\u5f0f\uff0c\u53ef\u80fd\u4f1a\u5bfc\u81f4\u63a5\u6536\u6570\u636e\u9519\u8bef\uff0c\u4ece\u800c\u5f71\u54cd\u7cfb\u7edf\u7684\u7a33\u5b9a\u6027\u548c\u6b63\u5e38\u8fd0\u884c\u3002\u672c\u6587\u5c06\u8be6\u7ec6\u4ecb\u7ecdSPI\u4ece\u6a21\u5f0f\u63a5\u6536\u6570\u636e\u9519\u8bef\u7684\u539f\u56e0\u548c\u89e3\u51b3\u529e\u6cd5\u3002<\/p>\n<h2 style=\"text-align: center;\">1. \u4ec0\u4e48\u662fSPI\u4ece\u6a21\u5f0f<\/h2>\n<p>&emsp;&emsp;SPI\u4ece\u6a21\u5f0f\u662f\u6307\u4ece\u8bbe\u5907\uff08slave\uff09\u4ece\u4e3b\u8bbe\u5907\uff08master\uff09\u63a5\u6536\u6570\u636e\u7684\u4e00\u79cd\u6a21\u5f0f\u3002\u4ece\u8bbe\u5907\u53ea\u80fd\u63a5\u6536\u4e3b\u8bbe\u5907\u53d1\u9001\u7684\u6570\u636e\uff0c\u4e0d\u80fd\u53d1\u9001\u6570\u636e\u7ed9\u4e3b\u8bbe\u5907\u3002<\/p>\n<h3>&emsp;&emsp;1.1 SPI\u4ece\u6a21\u5f0f\u7684\u7279\u70b9<\/h3>\n<p>&emsp;&emsp;SPI\u4ece\u6a21\u5f0f\u7684\u7279\u70b9\u662f\uff1a<\/p>\n<ul>\n<li>SPI\u4ece\u6a21\u5f0f\u7684\u6570\u636e\u4f20\u8f93\u901f\u7387\u53d6\u51b3\u4e8e\u4e3b\u8bbe\u5907\u7684\u901f\u7387\uff0c\u4ece\u8bbe\u5907\u4e0d\u80fd\u5f71\u54cd\u901f\u7387\u3002<\/li>\n<li>\u4ece\u8bbe\u5907\u53ea\u80fd\u63a5\u6536\u6570\u636e\uff0c\u4e0d\u80fd\u53d1\u9001\u6570\u636e\u3002<\/li>\n<li>\u4ece\u8bbe\u5907\u53ea\u80fd\u63a5\u6536\u4e3b\u8bbe\u5907\u53d1\u9001\u7684\u6570\u636e\uff0c\u4e0d\u80fd\u63a5\u6536\u5176\u4ed6\u4ece\u8bbe\u5907\u53d1\u9001\u7684\u6570\u636e\u3002<\/li>\n<li>\u4ece\u8bbe\u5907\u53ea\u80fd\u63a5\u6536\u4e3b\u8bbe\u5907\u53d1\u9001\u7684\u6570\u636e\uff0c\u4e0d\u80fd\u63a5\u6536\u5176\u4ed6\u4e3b\u8bbe\u5907\u53d1\u9001\u7684\u6570\u636e\u3002<\/li>\n<\/ul>\n<h2 style=\"text-align: center;\">2. 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