{"id":86861,"date":"2026-07-29T11:50:00","date_gmt":"2026-07-29T03:50:00","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/86861.html"},"modified":"2026-07-29T11:50:00","modified_gmt":"2026-07-29T03:50:00","slug":"%e5%b5%8c%e5%85%a5%e5%bc%8f%e5%b8%b8%e8%a7%81%e9%80%9a%e4%bf%a1%e5%8d%8f%e8%ae%ae%e5%af%b9%e6%af%94%ef%bc%9auart%e3%80%81spi%e3%80%81i2c%e3%80%81can-%e5%a6%82%e4%bd%95%e9%80%89%e6%8b%a9%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/86861.html","title":{"rendered":"\u5d4c\u5165\u5f0f\u5e38\u89c1\u901a\u4fe1\u534f\u8bae\u5bf9\u6bd4\uff1aUART\u3001SPI\u3001I2C\u3001CAN \u5982\u4f55\u9009\u62e9\uff1f"},"content":{"rendered":"<h2 style=\"background-color:transparent\">\u4e00\u3001\u524d\u8a00<\/h2>\n<p>\u505a\u5d4c\u5165\u5f0f\u5f00\u53d1&#xff0c;\u672c\u8d28\u5c31\u662f\u64cd\u63a7\u5916\u8bbe\u3001\u4f20\u8f93\u6570\u636e\u3001\u8bbe\u5907\u4ea4\u4e92\u3002\u800c\u6240\u6709\u5916\u8bbe\u4ea4\u4e92&#xff0c;\u90fd\u79bb\u4e0d\u5f00\u901a\u4fe1\u534f\u8bae\u3002<\/p>\n<p>\u65e5\u5e38\u5f00\u53d1\u4e2d\u6700\u5e38\u7528\u7684\u56db\u79cd\u901a\u4fe1\u534f\u8bae&#xff1a;UART\u3001I2C\u3001SPI\u3001CAN&#xff0c;\u57fa\u672c\u8986\u76d6\u4e8695%\u4ee5\u4e0a\u7684\u5d4c\u5165\u5f0f\u573a\u666f&#xff0c;\u5305\u62ec\u4f20\u611f\u5668\u91c7\u96c6\u3001\u5c4f\u5e55\u9a71\u52a8\u3001Flash\u8bfb\u5199\u3001\u8bbe\u5907\u7ec4\u7f51\u3001\u7535\u673a\u901a\u4fe1\u3001\u4e32\u53e3\u8c03\u8bd5\u7b49\u3002<\/p>\n<p>\u5f88\u591a\u65b0\u624b\u6700\u5927\u7684\u95ee\u9898\u662f&#xff1a;\u53ea\u4f1a\u914d\u7f6e\u4ee3\u7801&#xff0c;\u4e0d\u61c2\u5e95\u5c42\u5dee\u5f02\u3002<\/p>\n<p>\u6bd4\u5982&#xff1a;\u4f20\u611f\u5668\u660e\u660e\u53ef\u4ee5\u7528I2C&#xff0c;\u4e3a\u4ec0\u4e48\u6709\u7684\u5fc5\u987b\u7528SPI&#xff1f;\u4e32\u53e3\u4e3a\u4ec0\u4e48\u5bb9\u6613\u4e71\u7801&#xff1f;I2C\u6302\u8f7d\u591a\u8bbe\u5907\u4e3a\u4ec0\u4e48\u5bb9\u6613\u5361\u6b7b&#xff1f;\u5de5\u4e1a\u8bbe\u5907\u4e3a\u4ec0\u4e48\u4f18\u5148\u7528CAN&#xff1f;<\/p>\n<p>\u5982\u679c\u5206\u4e0d\u6e05\u56db\u79cd\u534f\u8bae\u7684\u901f\u5ea6\u3001\u63a5\u7ebf\u3001\u62d3\u6251\u3001\u53ef\u9760\u6027\u3001\u9002\u7528\u573a\u666f&#xff0c;\u505a\u9879\u76ee\u65f6\u53ea\u4f1a\u76f2\u76ee\u7167\u642c\u4f8b\u7a0b&#xff0c;\u4e00\u65e6\u9047\u5230\u5e72\u6270\u3001\u4e22\u5305\u3001\u901a\u4fe1\u5f02\u5e38\u3001\u8bbe\u5907\u517c\u5bb9\u95ee\u9898&#xff0c;\u5b8c\u5168\u65e0\u4ece\u6392\u67e5\u3002<\/p>\n<p>\u672c\u6587\u7528\u63a5\u5730\u6c14\u3001\u5de5\u7a0b\u5316\u7684\u89d2\u5ea6&#xff0c;\u8be6\u7ec6\u62c6\u89e3\u56db\u79cd\u901a\u4fe1\u534f\u8bae\u7684<span style=\"color:#fe2c24\">\u786c\u4ef6\u63a5\u7ebf\u3001\u901a\u4fe1\u539f\u7406\u3001\u534f\u8bae\u89c4\u5219\u3001\u4f18\u7f3a\u70b9\u3001\u5178\u578b\u7528\u6cd5\u3001\u907f\u5751\u70b9<\/span>&#xff0c;\u6700\u540e\u7ed9\u51fa\u6e05\u6670\u7684\u9009\u578b\u903b\u8f91&#xff0c;\u770b\u5b8c\u5f7b\u5e95\u641e\u61c2\u5d4c\u5165\u5f0f\u5916\u8bbe\u901a\u4fe1\u3002<\/p>\n<h2>\u4e8c\u3001\u5148\u641e\u61c2&#xff1a;\u901a\u4fe1\u534f\u8bae\u7684\u6838\u5fc3\u8bc4\u5224\u7ef4\u5ea6<\/h2>\n<p>\u6211\u4eec\u8bc4\u5224\u4e00\u4e2a\u901a\u4fe1\u534f\u8bae\u597d\u4e0d\u597d\u3001\u9002\u4e0d\u9002\u5408\u9879\u76ee&#xff0c;\u4e3b\u8981\u770b5\u4e2a\u7ef4\u5ea6&#xff0c;\u540e\u9762\u6240\u6709\u5bf9\u6bd4\u90fd\u56f4\u7ed5\u8fd9\u51e0\u70b9\u5c55\u5f00&#xff1a;<\/p>\n<ul>\n<li>\n<p>\u63a5\u7ebf\u6570\u91cf&#xff1a;\u5360\u7528\u5f15\u811a\u591a\u5c11&#xff0c;\u5e03\u7ebf\u662f\u5426\u65b9\u4fbf<\/p>\n<\/li>\n<li>\n<p>\u901a\u4fe1\u901f\u5ea6&#xff1a;\u4f4e\u901f\u4f20\u611f\u5668 \/ \u9ad8\u901f\u5927\u6570\u636e\u4f20\u8f93<\/p>\n<\/li>\n<li>\n<p>\u8bbe\u5907\u62d3\u6251&#xff1a;\u4e00\u5bf9\u4e00\u3001\u4e00\u5bf9\u591a\u3001\u591a\u4e3b\u591a\u4ece<\/p>\n<\/li>\n<li>\n<p>\u53ef\u9760\u6027&#xff1a;\u662f\u5426\u6297\u5e72\u6270\u3001\u662f\u5426\u6821\u9a8c\u3001\u662f\u5426\u5bb9\u9519<\/p>\n<\/li>\n<li>\n<p>\u9002\u7528\u573a\u666f&#xff1a;\u677f\u5185\u77ed\u8ddd\u79bb \/ \u677f\u5916\u957f\u7ebf \/ \u5de5\u4e1a\u73af\u5883<img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"514\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/07\/20260729034958-6a69786631957.png\" width=\"950\" \/><\/p>\n<\/li>\n<\/ul>\n<h2>\u4e09\u3001UART \u4e32\u53e3\u901a\u4fe1&#xff1a;\u6700\u57fa\u7840\u7684\u8c03\u8bd5\u4e0e\u4eba\u673a\u901a\u4fe1<\/h2>\n<h3>3.1 \u534f\u8bae\u57fa\u672c\u4ecb\u7ecd<\/h3>\n<p>UART&#xff08;\u901a\u7528\u5f02\u6b65\u6536\u53d1\u4f20\u8f93\u5668&#xff09;\u662f\u5d4c\u5165\u5f0f\u6700\u7b80\u5355\u3001\u6700\u901a\u7528\u3001\u6700\u65e0\u95e8\u69db\u7684\u901a\u4fe1\u65b9\u5f0f\u3002\u6211\u4eec\u65e5\u5e38\u7684\u6253\u5370\u8c03\u8bd5\u3001\u84dd\u7259\u6a21\u5757\u3001WiFi\u6a21\u5757\u3001GPS\u3001\u4e32\u53e3\u5c4f&#xff0c;\u57fa\u672c\u5168\u90e8\u57fa\u4e8eUART\u3002<\/p>\n<p>UART\u5c5e\u4e8e\u5f02\u6b65\u4e32\u884c\u901a\u4fe1&#xff0c;\u6ca1\u6709\u65f6\u949f\u7ebf&#xff0c;\u6536\u53d1\u53cc\u65b9\u4f9d\u9760\u63d0\u524d\u7ea6\u5b9a\u597d\u7684\u6ce2\u7279\u7387\u540c\u6b65\u6570\u636e\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"252\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/07\/20260729034958-6a6978665feb8.png\" width=\"624\" \/><\/p>\n<h3>3.2 \u786c\u4ef6\u63a5\u7ebf\u65b9\u5f0f<\/h3>\n<p>\u6807\u51c6\u53ea\u9700\u4e24\u6839\u7ebf&#xff1a;<\/p>\n<ul>\n<li>\n<p>TX&#xff1a;\u53d1\u9001\u7aef<\/p>\n<\/li>\n<li>\n<p>RX&#xff1a;\u63a5\u6536\u7aef<\/p>\n<\/li>\n<li>\n<p>GND&#xff1a;\u5171\u5730&#xff08;\u5fc5\u987b&#xff01;\u5f88\u591a\u901a\u4fe1\u5f02\u5e38\u90fd\u662f\u56e0\u4e3a\u6ca1\u5171\u5730&#xff09;<\/p>\n<\/li>\n<\/ul>\n<p>\u63a5\u7ebf\u89c4\u5219&#xff1a;\u4ea4\u53c9\u8fde\u63a5&#xff0c;A-TX\u63a5B-RX&#xff0c;A-RX\u63a5B-TX\u3002<\/p>\n<h3>3.3 \u6570\u636e\u5e27\u534f\u8bae\u683c\u5f0f<\/h3>\n<p>UART \u4e00\u5e27\u6570\u636e\u7ed3\u6784\u56fa\u5b9a&#xff1a;\u8d77\u59cb\u4f4d &#043; \u6570\u636e\u4f4d &#043; \u6821\u9a8c\u4f4d &#043; \u505c\u6b62\u4f4d<\/p>\n<ul>\n<li>\n<p>\u8d77\u59cb\u4f4d&#xff1a;1\u4f4d&#xff0c;\u62c9\u4f4e\u7535\u5e73&#xff0c;\u901a\u77e5\u5bf9\u65b9\u51c6\u5907\u63a5\u6536<\/p>\n<\/li>\n<li>\n<p>\u6570\u636e\u4f4d&#xff1a;8\u4f4d&#xff08;\u6700\u5e38\u7528&#xff09;&#xff0c;\u771f\u6b63\u7684\u6709\u6548\u6570\u636e<\/p>\n<\/li>\n<li>\n<p>\u6821\u9a8c\u4f4d&#xff1a;\u65e0\u6821\u9a8c\/\u5947\u6821\u9a8c\/\u5076\u6821\u9a8c&#xff0c;\u7528\u4e8e\u7b80\u5355\u68c0\u9519<\/p>\n<\/li>\n<li>\n<p>\u505c\u6b62\u4f4d&#xff1a;1\u4f4d&#xff0c;\u62c9\u9ad8\u7535\u5e73&#xff0c;\u8868\u793a\u4e00\u5e27\u7ed3\u675f<\/p>\n<\/li>\n<\/ul>\n<p>\u6536\u53d1\u53cc\u65b9\u5fc5\u987b\u4e25\u683c\u4e00\u81f4&#xff1a;\u6ce2\u7279\u7387\u3001\u6570\u636e\u4f4d\u3001\u6821\u9a8c\u4f4d\u3001\u505c\u6b62\u4f4d&#xff0c;\u4efb\u610f\u4e0d\u5339\u914d\u76f4\u63a5\u4e71\u7801\u3002<\/p>\n<p>\u793a\u6ce2\u5668\u4e32\u53e3\u6570\u636e\u5b9e\u62cd&#xff0c;\u5176\u4e2d\u914d\u7f6e\u6570\u636e\u4f4d\u4e3a8\u4f4d&#xff0c;\u505c\u6b62\u4f4d\u4e3a1\u4f4d&#xff0c;\u4e0d\u4f7f\u7528\u6821\u9a8c\u4f4d&#xff0c;\u51712\u7ec4\u6570\u636e&#xff0c;\u6ce8\u610f\u5148\u53d1\u9ad8\u4f4d\u540e\u53d1\u4f4e\u4f4d&#xff1a;<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"578\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/07\/20260729034958-6a69786675293.png\" width=\"827\" \/><\/p>\n<h3>3.4 \u6838\u5fc3\u7279\u70b9\u4e0e\u4f18\u7f3a\u70b9<\/h3>\n<p>\u4f18\u70b9&#xff1a;<\/p>\n<ul>\n<li>\n<p>\u63a5\u7ebf\u6700\u5c11\u3001\u534f\u8bae\u6700\u7b80\u5355\u3001CPU\u8d44\u6e90\u5360\u7528\u4f4e<\/p>\n<\/li>\n<li>\n<p>\u652f\u6301\u957f\u8ddd\u79bb\u4f20\u8f93&#xff0c;\u5e03\u7ebf\u7075\u6d3b<\/p>\n<\/li>\n<li>\n<p>\u51e0\u4e4e\u6240\u6709\u6a21\u5757\u3001\u82af\u7247\u90fd\u517c\u5bb9&#xff0c;\u901a\u7528\u6027\u62c9\u6ee1<\/p>\n<\/li>\n<\/ul>\n<p>\u7f3a\u70b9&#xff1a;<\/p>\n<ul>\n<li>\n<p>\u65e0\u65f6\u949f\u540c\u6b65&#xff0c;\u6ce2\u7279\u7387\u8bef\u5dee\u79ef\u7d2f\u5bb9\u6613\u4e22\u5305\u3001\u4e71\u7801<\/p>\n<\/li>\n<li>\n<p>\u53ea\u80fd\u4e00\u5bf9\u4e00\u901a\u4fe1&#xff0c;\u4e0d\u652f\u6301\u591a\u8bbe\u5907\u6302\u8f7d<\/p>\n<\/li>\n<li>\n<p>\u65e0\u786c\u4ef6\u5bb9\u9519\u3001\u65e0\u91cd\u4f20\u673a\u5236&#xff0c;\u6297\u5e72\u6270\u80fd\u529b\u5f31<\/p>\n<\/li>\n<\/ul>\n<h3>3.5 \u5178\u578b\u4f7f\u7528\u573a\u666f<\/h3>\n<ul>\n<li>\n<p>\u7a0b\u5e8f\u65e5\u5fd7\u6253\u5370\u3001\u8c03\u8bd5\u8f93\u51fa<\/p>\n<\/li>\n<li>\n<p>GPS\u3001\u84dd\u7259\u3001WiFi\u3001\u4e32\u53e3\u6a21\u5757\u901a\u4fe1<\/p>\n<\/li>\n<li>\n<p>\u4e32\u53e3\u89e6\u6478\u5c4f\u3001\u4e0a\u4f4d\u673a\u901a\u4fe1<\/p>\n<\/li>\n<li>\n<p>\u8bbe\u5907\u4e4b\u95f4\u7b80\u5355\u6570\u636e\u900f\u4f20<\/p>\n<\/li>\n<\/ul>\n<h2>\u56db\u3001I2C \u901a\u4fe1&#xff1a;\u4f4e\u901f\u7387\u3001\u591a\u4f20\u611f\u5668\u6302\u8f7d\u9996\u9009<\/h2>\n<h3>4.1 \u534f\u8bae\u57fa\u672c\u4ecb\u7ecd<\/h3>\n<p>I2C \u662f\u4e00\u79cd\u534a\u53cc\u5de5\u3001\u540c\u6b65\u3001\u4f4e\u901f\u603b\u7ebf\u534f\u8bae&#xff0c;\u6700\u5927\u7684\u4eae\u70b9\u662f\u4e24\u6839\u7ebf\u6302\u8f7d\u591a\u4e2a\u8bbe\u5907&#xff0c;\u975e\u5e38\u9002\u5408\u6302\u8f7d\u4e00\u5806\u5c0f\u4f20\u611f\u5668\u3002<\/p>\n<p>\u5e38\u89c1\u7684\u6e29\u6e7f\u5ea6\u3001\u6c14\u538b\u3001\u9640\u87ba\u4eea\u3001EEPROM \u51e0\u4e4e\u5168\u90e8\u662f I2C \u63a5\u53e3\u3002<\/p>\n<h3>4.2 \u786c\u4ef6\u63a5\u7ebf<\/h3>\n<p>\u4ec5\u9700\u4e24\u6839\u4fe1\u53f7\u7ebf &#043; \u5730\u7ebf&#xff1a;<\/p>\n<ul>\n<li>\n<p>SCL&#xff1a;\u65f6\u949f\u7ebf&#xff08;\u4e3b\u673a\u8f93\u51fa\u65f6\u949f&#xff09;<\/p>\n<\/li>\n<li>\n<p>SDA&#xff1a;\u6570\u636e\u7ebf&#xff08;\u53cc\u5411\u6536\u53d1&#xff09;<\/p>\n<\/li>\n<\/ul>\n<p>\u6240\u6709\u8bbe\u5907\u7684 SCL\u3001SDA \u5168\u90e8\u5e76\u8054\u5230\u603b\u7ebf\u4e0a&#xff0c;\u6bcf\u4e2a\u8bbe\u5907\u62e5\u6709\u552f\u4e00\u8bbe\u5907\u5730\u5740&#xff0c;\u4e3b\u673a\u901a\u8fc7\u5730\u5740\u533a\u5206\u4e0d\u540c\u4ece\u673a\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"164\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/07\/20260729034958-6a697866cf6ea.png\" width=\"593\" \/><\/p>\n<h3>4.3 \u901a\u4fe1\u6d41\u7a0b\u6838\u5fc3\u89c4\u5219<\/h3>\n<p>I2C \u901a\u4fe1\u6709\u56fa\u5b9a\u6d41\u7a0b&#xff1a;\u8d77\u59cb\u4fe1\u53f7 \u2192 \u8bbe\u5907\u5730\u5740&#043;\u8bfb\u5199\u4f4d \u2192 \u5e94\u7b54\u4fe1\u53f7 \u2192 \u5bc4\u5b58\u5668\u5730\u5740 \u2192 \u6570\u636e\u4f20\u8f93 \u2192 \u505c\u6b62\u4fe1\u53f7<\/p>\n<ul>\n<li>\n<p>\u4e3b\u673a\u63a7\u5236\u65f6\u949f&#xff0c;\u6240\u6709\u4ece\u673a\u8ddf\u968f\u4e3b\u673a\u65f6\u949f\u91c7\u6837\u6570\u636e<\/p>\n<\/li>\n<li>\n<p>\u6bcf\u6b21\u901a\u4fe1\u5fc5\u987b\u5148\u201c\u70b9\u540d\u8bbe\u5907\u5730\u5740\u201d&#xff0c;\u88ab\u70b9\u540d\u8bbe\u5907\u624d\u4f1a\u54cd\u5e94<\/p>\n<\/li>\n<li>\n<p>\u652f\u6301\u591a\u8bbe\u5907\u6302\u8f7d&#xff0c;\u603b\u7ebf\u62d3\u6251\u975e\u5e38\u5e72\u51c0<img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"395\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/07\/20260729034958-6a697866e266c.png\" width=\"534\" \/><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"259\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/07\/20260729034959-6a697867072f2.png\" width=\"1046\" \/><\/p>\n<\/li>\n<\/ul>\n<h3>4.4 \u4f18\u7f3a\u70b9\u603b\u7ed3<\/h3>\n<p>\u4f18\u70b9&#xff1a;<\/p>\n<ul>\n<li>\n<p>\u5f15\u811a\u6781\u5ea6\u8282\u7701&#xff0c;\u591a\u4f20\u611f\u5668\u7ec4\u7f51\u975e\u5e38\u4f18\u96c5<\/p>\n<\/li>\n<li>\n<p>\u534f\u8bae\u6210\u719f\u3001\u5916\u8bbe\u6781\u591a\u3001\u914d\u7f6e\u7b80\u5355<\/p>\n<\/li>\n<li>\n<p>\u540c\u6b65\u901a\u4fe1&#xff0c;\u6570\u636e\u7a33\u5b9a\u4e0d\u4e22\u5e27<\/p>\n<\/li>\n<\/ul>\n<p>\u7f3a\u70b9&#xff1a;<\/p>\n<ul>\n<li>\n<p>\u901f\u5ea6\u6162&#xff0c;\u4e00\u822c\u51e0\u767eKHz&#xff0c;\u4e0d\u9002\u5408\u5927\u6570\u636e\u4f20\u8f93<\/p>\n<\/li>\n<li>\n<p>\u534a\u53cc\u5de5&#xff0c;\u6536\u53d1\u4e0d\u80fd\u540c\u65f6\u8fdb\u884c<\/p>\n<\/li>\n<li>\n<p>\u603b\u7ebf\u5bb9\u6613\u5361\u6b7b&#xff0c;\u4ece\u673a\u65e0\u5e94\u7b54\u4f1a\u5bfc\u81f4\u603b\u7ebf\u9501\u6b7b&#xff0c;\u9700\u8981\u8f6f\u4ef6\u590d\u4f4d<\/p>\n<\/li>\n<li>\n<p>\u6297\u5e72\u6270\u4e00\u822c&#xff0c;\u4e0d\u9002\u5408\u957f\u7ebf\u4f20\u8f93<\/p>\n<\/li>\n<\/ul>\n<h3>4.5 \u5178\u578b\u573a\u666f<\/h3>\n<ul>\n<li>\n<p>\u6e29\u6e7f\u5ea6\u3001\u6c14\u538b\u3001\u59ff\u6001\u3001\u5149\u7167\u7b49\u5404\u7c7b\u4f4e\u901f\u4f20\u611f\u5668<\/p>\n<\/li>\n<li>\n<p>EEPROM\u3001RTC\u5b9e\u65f6\u65f6\u949f<\/p>\n<\/li>\n<li>\n<p>\u591a\u4f20\u611f\u5668\u96c6\u4e2d\u6302\u8f7d\u3001\u5f15\u811a\u8d44\u6e90\u7d27\u5f20\u7684\u573a\u666f<\/p>\n<\/li>\n<\/ul>\n<h2>\u4e94\u3001SPI \u901a\u4fe1&#xff1a;\u677f\u5185\u9ad8\u901f\u4f20\u8f93\u4e4b\u738b<\/h2>\n<h3>5.1 \u534f\u8bae\u57fa\u672c\u4ecb\u7ecd<\/h3>\n<p>SPI \u662f\u5d4c\u5165\u5f0f\u901f\u5ea6\u6700\u5feb\u3001\u6548\u7387\u6700\u9ad8\u3001\u6700\u7a33\u5b9a\u7684\u77ed\u8ddd\u79bb\u540c\u6b65\u901a\u4fe1\u534f\u8bae&#xff0c;\u6ca1\u6709\u4e4b\u4e00\u3002\u5982\u679c\u8bf4 I2C \u662f\u4f4e\u901f\u4f20\u611f\u5668\u4e13\u7528&#xff0c;SPI \u5c31\u662f\u9ad8\u901f\u5916\u8bbe\u4e13\u7528\u3002<\/p>\n<p>SPI \u91c7\u7528\u5168\u53cc\u5de5\u540c\u6b65\u901a\u4fe1&#xff0c;\u4e3b\u673a\u63d0\u4f9b\u65f6\u949f&#xff0c;\u6536\u53d1\u6570\u636e\u540c\u65f6\u8fdb\u884c&#xff0c;\u901f\u5ea6\u8fdc\u8d85 I2C\u3001UART\u3002<\/p>\n<h3>5.2 \u786c\u4ef6\u63a5\u7ebf<\/h3>\n<p>\u6807\u51c64\u7ebf&#xff1a;<\/p>\n<ul>\n<li>\n<p>SCK&#xff1a;\u65f6\u949f\u7ebf<\/p>\n<\/li>\n<li>\n<p>MOSI&#xff1a;\u4e3b\u673a\u53d1\u3001\u4ece\u673a\u6536<\/p>\n<\/li>\n<li>\n<p>MISO&#xff1a;\u4ece\u673a\u53d1\u3001\u4e3b\u673a\u6536<\/p>\n<\/li>\n<li>\n<p>CS\/CE&#xff1a;\u7247\u9009\u4fe1\u53f7\u7ebf&#xff08;\u6bcf\u4e2a\u4ece\u673a\u72ec\u7acb\u4e00\u6839&#xff09;<\/p>\n<\/li>\n<\/ul>\n<p>\u591a\u8bbe\u5907\u6302\u8f7d\u9700\u8981\u72ec\u7acb\u7247\u9009&#xff0c;\u4e0d\u80fd\u5e76\u8054&#xff0c;\u6240\u4ee5\u5360\u7528\u5f15\u811a\u8f83\u591a\u3002<\/p>\n<h3>5.3 \u901a\u4fe1\u7279\u70b9<\/h3>\n<ul>\n<li>\n<p>\u5168\u53cc\u5de5&#xff0c;\u6536\u53d1\u540c\u6b65\u8fdb\u884c&#xff0c;\u4f20\u8f93\u6548\u7387\u6781\u9ad8<\/p>\n<\/li>\n<li>\n<p>\u65e0\u590d\u6742\u534f\u8bae\u5e27\u3001\u65e0\u5730\u5740\u3001\u65e0\u5e94\u7b54&#xff0c;\u7eaf\u7cb9\u9ad8\u901f\u79fb\u4f4d\u4f20\u8f93<\/p>\n<\/li>\n<li>\n<p>\u901a\u8fc7\u7247\u9009\u533a\u5206\u8bbe\u5907&#xff0c;\u9009\u4e2d\u8c01\u548c\u8c01\u901a\u4fe1<\/p>\n<\/li>\n<\/ul>\n<h3>5.4 \u4f18\u7f3a\u70b9<\/h3>\n<p>\u4f18\u70b9&#xff1a;<\/p>\n<ul>\n<li>\n<p>\u901f\u7387\u6781\u9ad8&#xff0c;\u53ef\u8fbe\u51e0\u5341MHz&#xff0c;\u9002\u5408\u5927\u6570\u636e\u5237\u5c4f\u3001\u8bfb\u5199<\/p>\n<\/li>\n<li>\n<p>\u5168\u53cc\u5de5\u4f20\u8f93&#xff0c;\u5b9e\u65f6\u6027\u5f3a<\/p>\n<\/li>\n<li>\n<p>\u534f\u8bae\u7b80\u5355\u3001\u7a33\u5b9a\u3001\u6781\u5c11\u51fa\u9519<\/p>\n<\/li>\n<\/ul>\n<p>\u7f3a\u70b9&#xff1a;<\/p>\n<ul>\n<li>\n<p>\u5360\u7528\u5f15\u811a\u591a&#xff0c;\u591a\u8bbe\u5907\u975e\u5e38\u8d39IO<\/p>\n<\/li>\n<li>\n<p>\u65e0\u786c\u4ef6\u6821\u9a8c\u3001\u65e0\u5e94\u7b54&#xff0c;\u9700\u8981\u81ea\u5df1\u505a\u6821\u9a8c\u673a\u5236<\/p>\n<\/li>\n<li>\n<p>\u4e0d\u9002\u5408\u957f\u8ddd\u79bb\u4f20\u8f93&#xff0c;\u4ec5\u9650\u677f\u5185\u77ed\u8ddd\u79bb\u901a\u4fe1<\/p>\n<\/li>\n<\/ul>\n<h3>5.5 \u5178\u578b\u573a\u666f<\/h3>\n<ul>\n<li>\n<p>LCD\u3001OLED\u3001SPI\u5c4f\u5e55\u9ad8\u901f\u5237\u5c4f<\/p>\n<\/li>\n<li>\n<p>SPI Flash\u3001SD\u5361\u9ad8\u901f\u8bfb\u5199<\/p>\n<\/li>\n<li>\n<p>\u9ad8\u901fADC\u3001\u5c04\u9891\u6a21\u5757\u3001\u56fe\u50cf\u4f20\u8f93<\/p>\n<\/li>\n<\/ul>\n<h2>\u516d\u3001CAN \u901a\u4fe1&#xff1a;\u5de5\u4e1a\u7ea7\u9ad8\u53ef\u9760\u603b\u7ebf<\/h2>\n<h3>6.1 \u534f\u8bae\u57fa\u672c\u4ecb\u7ecd<\/h3>\n<p>\u524d\u9762\u4e09\u79cd\u534f\u8bae\u57fa\u672c\u90fd\u662f\u677f\u5185\u77ed\u8ddd\u79bb\u3001\u8bbe\u5907\u7b80\u5355\u4ea4\u4e92&#xff0c;\u800c CAN \u662f\u771f\u6b63\u7684\u5de5\u4e1a\u603b\u7ebf\u534f\u8bae&#xff0c;\u4e3b\u6253\u9ad8\u6297\u5e72\u6270\u3001\u957f\u8ddd\u79bb\u3001\u591a\u8bbe\u5907\u7ec4\u7f51\u3001\u5bb9\u9519\u91cd\u4f20\u3002<\/p>\n<p>\u6c7d\u8f66\u3001\u5de5\u63a7\u3001\u673a\u5668\u4eba\u3001\u7535\u673a\u8bbe\u5907\u51e0\u4e4e\u5168\u90e8\u4f9d\u9760 CAN \u901a\u4fe1\u3002<\/p>\n<h3>6.2 \u786c\u4ef6\u63a5\u7ebf<\/h3>\n<p>\u4ec5\u9700\u4e24\u6839\u5dee\u5206\u4fe1\u53f7\u7ebf&#xff1a;<\/p>\n<ul>\n<li>\n<p>CAN_H<\/p>\n<\/li>\n<li>\n<p>CAN_L<\/p>\n<\/li>\n<\/ul>\n<p>\u5dee\u5206\u4fe1\u53f7\u4f20\u8f93&#xff0c;\u6297\u7535\u78c1\u5e72\u6270\u80fd\u529b\u6781\u5f3a&#xff0c;\u603b\u7ebf\u4e24\u7aef\u9700\u8981120\u03a9\u7ec8\u7aef\u7535\u963b\u5339\u914d\u3002<\/p>\n<h3>6.3 \u6838\u5fc3\u534f\u8bae\u4f18\u52bf&#xff08;\u5176\u4ed6\u4e09\u79cd\u5b8c\u5168\u6bd4\u4e0d\u4e86&#xff09;<\/h3>\n<ul>\n<li>\n<p>\u5dee\u5206\u4f20\u8f93&#xff1a;\u6291\u5236\u5171\u6a21\u5e72\u6270&#xff0c;\u9002\u5408\u5de5\u4e1a\u5f3a\u5e72\u6270\u73af\u5883<\/p>\n<\/li>\n<li>\n<p>\u591a\u4e3b\u7ade\u4e89&#xff1a;\u652f\u6301\u591a\u8bbe\u5907\u540c\u65f6\u53d1\u6570\u636e&#xff0c;\u603b\u7ebf\u4ef2\u88c1\u673a\u5236\u81ea\u52a8\u907f\u51b2\u7a81<\/p>\n<\/li>\n<li>\n<p>\u786c\u4ef6\u6821\u9a8c&#043;\u91cd\u4f20&#xff1a;\u51fa\u9519\u81ea\u52a8\u91cd\u53d1&#xff0c;\u4fdd\u8bc1\u6570\u636e\u7edd\u5bf9\u53ef\u9760<\/p>\n<\/li>\n<li>\n<p>\u957f\u8ddd\u79bb\u4f20\u8f93&#xff1a;\u5343\u7c73\u7ea7\u901a\u4fe1\u7a33\u5b9a<\/p>\n<\/li>\n<li>\n<p>\u603b\u7ebf\u62d3\u6251&#xff1a;\u4e00\u6761\u603b\u7ebf\u6302\u8f7d\u51e0\u5341\u4e0a\u767e\u4e2a\u8bbe\u5907<\/p>\n<\/li>\n<\/ul>\n<h3>6.4 \u7f3a\u70b9<\/h3>\n<ul>\n<li>\n<p>\u534f\u8bae\u590d\u6742\u3001\u5e27\u7ed3\u6784\u7e41\u7410&#xff0c;\u5f00\u53d1\u96be\u5ea6\u5927<\/p>\n<\/li>\n<li>\n<p>\u9700\u8981\u5916\u7f6eCAN\u6536\u53d1\u5668&#xff0c;\u786c\u4ef6\u6210\u672c\u9ad8<\/p>\n<\/li>\n<li>\n<p>\u901f\u7387\u4e0d\u5982SPI&#xff0c;\u4e0d\u9002\u5408\u8d85\u5927\u541e\u5410\u91cf\u6570\u636e<\/p>\n<\/li>\n<\/ul>\n<h3>6.5 \u5178\u578b\u573a\u666f<\/h3>\n<ul>\n<li>\n<p>\u6c7d\u8f66\u7535\u5b50\u3001\u8f66\u8f7d\u8bbe\u5907\u901a\u4fe1<\/p>\n<\/li>\n<li>\n<p>\u5de5\u4e1a\u63a7\u5236\u3001\u673a\u5668\u4eba\u3001\u591a\u7535\u673a\u7ec4\u7f51<\/p>\n<\/li>\n<li>\n<p>\u8fdc\u8ddd\u79bb\u3001\u5f3a\u5e72\u6270\u3001\u591a\u8bbe\u5907\u603b\u7ebf\u901a\u4fe1<\/p>\n<\/li>\n<\/ul>\n<h2>\u4e03\u3001\u56db\u5927\u534f\u8bae\u5168\u65b9\u4f4d\u6c47\u603b\u5bf9\u6bd4<\/h2>\n<table>\n<tr>\n<p>\u901a\u4fe1\u534f\u8bae<\/p>\n<p>\u63a5\u7ebf\u6570\u91cf<\/p>\n<p>\u901f\u5ea6\u7b49\u7ea7<\/p>\n<p>\u901a\u4fe1\u65b9\u5f0f<\/p>\n<p>\u8bbe\u5907\u62d3\u6251<\/p>\n<p>\u6297\u5e72\u6270<\/p>\n<p>\u6838\u5fc3\u7528\u9014<\/p>\n<\/tr>\n<tbody>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>UART<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>2\u7ebf&#043;\u5730<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u4f4e\u901f<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u5f02\u6b65\u534a\u53cc\u5de5<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u4e00\u5bf9\u4e00<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u4e00\u822c<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u8c03\u8bd5\u3001\u6a21\u5757\u901a\u4fe1\u3001\u4e0a\u4f4d\u673a<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>I2C<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>2\u7ebf&#043;\u5730<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u4f4e\u901f<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u540c\u6b65\u534a\u53cc\u5de5<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u4e00\u5bf9\u591a\u603b\u7ebf<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u4e00\u822c<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u5404\u7c7b\u4f4e\u901f\u4f20\u611f\u5668<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>SPI<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>4\u7ebf<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u9ad8\u901f<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u540c\u6b65\u5168\u53cc\u5de5<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u4e00\u5bf9\u591a\u7247\u9009<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u8f83\u597d<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u5c4f\u5e55\u3001Flash\u3001\u9ad8\u901f\u5916\u8bbe<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>CAN<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>2\u5dee\u5206\u7ebf<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u4e2d\u9ad8\u901f<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u5dee\u5206\u603b\u7ebf<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u591a\u4e3b\u591a\u4ece\u603b\u7ebf<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u6781\u5f3a<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u5de5\u4e1a\u3001\u8f66\u8f7d\u3001\u8fdc\u8ddd\u79bb\u7ec4\u7f51<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>\u516b\u3001\u5de5\u7a0b\u5b9e\u6218&#xff1a;\u5230\u5e95\u8be5\u600e\u4e48\u9009&#xff1f;<\/h2>\n<p>\u6211\u6574\u7406\u4e86\u4e00\u5957<span style=\"color:#fe2c24\">\u5d4c\u5165\u5f0f\u9879\u76ee\u901a\u7528\u9009\u578b\u89c4\u5219<\/span>&#xff0c;\u65b0\u624b\u76f4\u63a5\u7167\u7740\u9009\u4e0d\u4f1a\u9519&#xff1a;<\/p>\n<li>\n<p>\u9700\u8981\u6253\u5370\u8c03\u8bd5\u3001\u8fde\u6a21\u5757\u3001\u8fde\u7535\u8111 \u2192 \u5fc5\u9009 UART<\/p>\n<\/li>\n<li>\n<p>\u6302\u8f7d\u4e00\u5806\u4f4e\u901f\u4f20\u611f\u5668\u3001IO\u4e0d\u591f\u7528 \u2192 \u5fc5\u9009 I2C<\/p>\n<\/li>\n<li>\n<p>\u9700\u8981\u5237\u5c4f\u3001\u5b58\u6570\u636e\u3001\u9ad8\u901f\u4f20\u8f93 \u2192 \u5fc5\u9009 SPI<\/p>\n<\/li>\n<li>\n<p>\u5de5\u4e1a\u73af\u5883\u3001\u957f\u7ebf\u4f20\u8f93\u3001\u591a\u8bbe\u5907\u7ec4\u7f51\u3001\u9ad8\u53ef\u9760\u6027 \u2192 \u5fc5\u9009 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