{"id":1777,"date":"2026-03-30T22:02:35","date_gmt":"2026-03-30T22:02:35","guid":{"rendered":"https:\/\/www.tech-posts.com\/cn\/timing-diagrams-code-hardware-guide\/"},"modified":"2026-03-30T22:02:35","modified_gmt":"2026-03-30T22:02:35","slug":"timing-diagrams-code-hardware-guide","status":"publish","type":"post","link":"https:\/\/www.tech-posts.com\/cn\/timing-diagrams-code-hardware-guide\/","title":{"rendered":"\u65f6\u5e8f\u56fe\uff1a\u5f25\u5408\u4ee3\u7801\u4e0e\u786c\u4ef6\u4e4b\u95f4\u7684\u9e3f\u6c9f"},"content":{"rendered":"<p>\u5f53\u8f6f\u4ef6\u5de5\u7a0b\u5e08\u7f16\u5199\u4ee3\u7801\u65f6\uff0c\u4ed6\u4eec\u4f1a\u4ece\u6307\u4ee4\u3001\u53d8\u91cf\u548c\u903b\u8f91\u6d41\u7a0b\u7684\u89d2\u5ea6\u601d\u8003\u3002\u800c\u5f53\u786c\u4ef6\u5de5\u7a0b\u5e08\u8bbe\u8ba1\u7535\u8def\u65f6\uff0c\u4ed6\u4eec\u5219\u4ece\u7535\u538b\u7535\u5e73\u3001\u4f20\u64ad\u5ef6\u8fdf\u548c\u65f6\u949f\u5468\u671f\u7684\u89d2\u5ea6\u601d\u8003\u3002\u8fd9\u4e24\u4e2a\u9886\u57df\u5e38\u5e38\u5904\u4e8e\u6469\u64e6\u72b6\u6001\u3002\u4ee3\u7801\u671f\u671b\u4fe1\u53f7\u5728\u67d0\u4e2a\u7279\u5b9a\u7684\u903b\u8f91\u65f6\u523b\u5230\u8fbe\uff0c\u4f46\u786c\u4ef6\u8fd0\u884c\u5728\u7269\u7406\u65f6\u95f4\u4e0a\uff0c\u800c\u7269\u7406\u65f6\u95f4\u4f1a\u53d7\u5230\u566a\u58f0\u3001\u6e29\u5ea6\u548c\u7535\u963b\u7684\u5f71\u54cd\u3002\u8fde\u63a5\u8fd9\u4e24\u4e2a\u9886\u57df\u7684\u6865\u6881\u5c31\u662f\u65f6\u5e8f\u56fe\u3002<\/p>\n<p>\u65f6\u5e8f\u56fe\u4e0d\u4ec5\u4ec5\u662f\u4e00\u5f20\u56fe\u7247\uff1b\u5b83\u662f\u4e00\u4efd\u5408\u7ea6\u3002\u5b83\u7cbe\u786e\u5730\u5b9a\u4e49\u4e86\u65f6\u95f4\u4e0a\u4e8b\u4ef6\u4e4b\u95f4\u7684\u5173\u7cfb\u3002\u5b83\u544a\u8bc9\u56fa\u4ef6\u5728\u4f55\u65f6\u53ef\u4ee5\u5b89\u5168\u5730\u8bfb\u53d6\u5f15\u811a\uff0c\u4e5f\u544a\u8bc9\u82af\u7247\u5728\u4f55\u65f6\u53ef\u4ee5\u5b89\u5168\u5730\u9a71\u52a8\u4fe1\u53f7\u7ebf\u3002\u5982\u679c\u65e0\u6cd5\u6e05\u6670\u7406\u89e3\u8fd9\u4e9b\u56fe\u8868\uff0c\u5d4c\u5165\u5f0f\u7cfb\u7edf\u5c31\u4f1a\u51fa\u73b0\u4e0d\u53ef\u9884\u6d4b\u7684\u6545\u969c\u3002\u6570\u636e\u635f\u574f\u3001\u7ade\u4e89\u6761\u4ef6\u548c\u7cfb\u7edf\u6b7b\u9501\u4f1a\u6210\u4e3a\u5e38\u89c1\u95ee\u9898\u3002\u672c\u6307\u5357\u5c06\u63a2\u8ba8\u65f6\u5e8f\u56fe\u7684\u673a\u5236\u3001\u80cc\u540e\u7684\u7269\u7406\u539f\u7406\uff0c\u4ee5\u53ca\u5982\u4f55\u6709\u6548\u9605\u8bfb\u548c\u521b\u5efa\u5b83\u4eec\u3002<\/p>\n<div 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\u4fe1\u53f7\u65f6\u5e8f\u4e0a\u7684\u53d8\u5316\u3002\u6296\u52a8\u53ef\u4ee5\u662f\u968f\u673a\u7684\uff0c\u4e5f\u53ef\u4ee5\u662f\u786e\u5b9a\u6027\u7684\u3002\u5b83\u4f1a\u964d\u4f4e\u566a\u58f0\u5bb9\u9650\uff0c\u4f7f\u56fe\u8868\u7684\u53ef\u9884\u6d4b\u6027\u4e0b\u964d\u3002<\/li>\n<\/ul>\n<p>\u7528\u4e8e\u4e0e\u786c\u4ef6\u63a5\u53e3\u7684\u4ee3\u7801\u5047\u8bbe\u65f6\u949f\u662f\u7a33\u5b9a\u7684\u3002\u5982\u679c\u7269\u7406\u65f6\u949f\u56e0\u6e29\u5ea6\u6216\u7535\u538b\u6ce2\u52a8\u800c\u6f02\u79fb\uff0c\u65f6\u5e8f\u56fe\u5c31\u4e0d\u518d\u7b26\u5408\u5b9e\u9645\u60c5\u51b5\u3002\u8fd9\u5c31\u662f\u4e3a\u4ec0\u4e48\u65f6\u5e8f\u56fe\u5fc5\u987b\u5305\u542b\u5bb9\u5dee\u8303\u56f4\u6216\u6700\u574f\u60c5\u51b5\u5206\u6790\u7684\u539f\u56e0\u3002<\/p>\n<h2>\u2699\ufe0f \u5173\u952e\u65f6\u5e8f\u53c2\u6570<\/h2>\n<p>\u7279\u5b9a\u53c2\u6570\u5b9a\u4e49\u4e86\u4fe1\u53f7\u5b8c\u6574\u6027\u7684\u6781\u9650\u3002\u8fd9\u4e9b\u6570\u503c\u901a\u5e38\u53ef\u4ee5\u5728\u6570\u636e\u624b\u518c\u4e2d\u627e\u5230\uff0c\u4f46\u6700\u597d\u901a\u8fc7\u65f6\u5e8f\u56fe\u7684\u4e0a\u4e0b\u6587\u6765\u7406\u89e3\u3002\u4e0b\u8868\u5217\u51fa\u4e86\u5de5\u7a0b\u5e08\u5fc5\u987b\u8bc4\u4f30\u7684\u6700\u5173\u952e\u53c2\u6570\u3002<\/p>\n<table>\n<thead>\n<tr>\n<th>\u53c2\u6570<\/th>\n<th>\u5b9a\u4e49<\/th>\n<th>\u5bf9\u7cfb\u7edf\u7684\u5f71\u54cd<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>\u5efa\u7acb\u65f6\u95f4<\/strong><\/td>\n<td>\u6570\u636e\u5fc5\u987b\u4fdd\u6301\u7a33\u5b9a\u7684\u6700\u77ed\u65f6\u95f4<em>\u5728<\/em>\u65f6\u949f\u8fb9\u6cbf\u4e4b\u540e\u3002<\/td>\n<td>\u5982\u679c\u8fdd\u53cd\uff0c\u63a5\u6536\u7aef\u7684\u89e6\u53d1\u5668\u5c06\u65e0\u6cd5\u6355\u83b7\u6b63\u786e\u7684\u503c\u3002<\/td>\n<\/tr>\n<tr>\n<td><strong>\u4fdd\u6301\u65f6\u95f4<\/strong><\/td>\n<td>\u6570\u636e\u5fc5\u987b\u4fdd\u6301\u7a33\u5b9a\u7684\u6700\u77ed\u65f6\u95f4<em>\u5728<\/em>\u65f6\u949f\u8fb9\u6cbf\u4e4b\u540e\u3002<\/td>\n<td>\u5982\u679c\u8fdd\u53cd\uff0c\u89e6\u53d1\u5668\u53ef\u80fd\u4f1a\u8fdb\u5165\u4e9a\u7a33\u6001\u3002<\/td>\n<\/tr>\n<tr>\n<td><strong>\u4f20\u64ad\u5ef6\u8fdf<\/strong><\/td>\n<td>\u4fe1\u53f7\u4ece\u8f93\u5165\u5230\u8f93\u51fa\u6240\u9700\u7684\u65f6\u95f4\u3002<\/td>\n<td>\u5ef6\u8fdf\u4f1a\u5728\u903b\u8f91\u95e8\u4e4b\u95f4\u7d2f\u79ef\uff0c\u53ef\u80fd\u5bfc\u81f4\u9519\u8fc7\u65f6\u949f\u5468\u671f\u3002<\/td>\n<\/tr>\n<tr>\n<td><strong>\u6062\u590d\u65f6\u95f4<\/strong><\/td>\n<td>\u5f02\u6b65\u4e8b\u4ef6\u53d1\u751f\u540e\uff0c\u63a7\u5236\u4fe1\u53f7\u6062\u590d\u5230\u6b63\u5e38\u72b6\u6001\u6240\u9700\u7684\u65f6\u95f4\u3002<\/td>\n<td>\u5f71\u54cd\u7cfb\u7edf\u4ece\u590d\u4f4d\u6216\u4e2d\u65ad\u4e2d\u6062\u590d\u7684\u901f\u5ea6\u3002<\/td>\n<\/tr>\n<tr>\n<td><strong>\u603b\u7ebf\u7ffb\u8f6c\u65f6\u95f4<\/strong><\/td>\n<td>\u5c06\u603b\u7ebf\u4ece\u8f93\u51fa\u6a21\u5f0f\u5207\u6362\u5230\u8f93\u5165\u6a21\u5f0f\u6240\u9700\u7684\u65f6\u95f4\u3002<\/td>\n<td>\u5bf9\u4e8eI2C\u62161-Wire\u7b49\u53cc\u5411\u603b\u7ebf\u81f3\u5173\u91cd\u8981\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u8fdd\u53cd\u8fd9\u4e9b\u53c2\u6570\u5e76\u4e0d\u603b\u662f\u5bfc\u81f4\u7acb\u5373\u5d29\u6e83\u3002\u6709\u65f6\u7cfb\u7edf99%\u7684\u65f6\u95f4\u90fd\u80fd\u6b63\u5e38\u5de5\u4f5c\uff0c\u4ec5\u5728\u7279\u5b9a\u6761\u4ef6\u4e0b\u624d\u4f1a\u5931\u6548\u3002\u8fd9\u5c31\u662f\u4e3a\u4ec0\u4e48\u65f6\u5e8f\u5206\u6790\u662f\u4e00\u4e2a\u8fed\u4ee3\u8fc7\u7a0b\u3002\u4f60\u5fc5\u987b\u9a8c\u8bc1\u5728\u6700\u6076\u52a3\u7684\u7535\u538b\u548c\u6e29\u5ea6\u6761\u4ef6\u4e0b\uff0c\u8be5\u65f6\u5e8f\u56fe\u4ecd\u7136\u6210\u7acb\u3002<\/p>\n<h2>\ud83d\udc40 \u8bfb\u53d6\u6ce2\u5f62<\/h2>\n<p>\u9605\u8bfb\u65f6\u5e8f\u56fe\u9700\u8981\u7cfb\u7edf\u5316\u7684\u65b9\u6cd5\u3002\u8c03\u8bd5\u786c\u4ef6\u95ee\u9898\u65f6\uff0c\u4e0d\u8981\u53ea\u770b\u4fe1\u53f7\u7535\u5e73\u3002\u8981\u5173\u6ce8\u4fe1\u53f7\u4e4b\u95f4\u7684\u5173\u7cfb\u3002<\/p>\n<p>\u6309\u7167\u4ee5\u4e0b\u6b65\u9aa4\u5206\u6790\u6ce2\u5f62\uff1a<\/p>\n<ul>\n<li><strong>\u786e\u5b9a\u89e6\u53d1\u4e8b\u4ef6\uff1a<\/strong>\u627e\u51fa\u542f\u52a8\u5e8f\u5217\u7684\u4e8b\u4ef6\u3002\u8fd9\u901a\u5e38\u662f\u65f6\u949f\u8fb9\u6cbf\u6216\u5916\u90e8\u4e2d\u65ad\u3002<\/li>\n<li><strong>\u8ffd\u8e2a\u6570\u636e\uff1a<\/strong>\u6839\u636e\u89e6\u53d1\u4e8b\u4ef6\u8ffd\u8e2a\u6570\u636e\u7ebf\u3002\u6570\u636e\u662f\u5728\u65f6\u949f\u8fb9\u6cbf\u4e4b\u524d\u8fd8\u662f\u4e4b\u540e\u51fa\u73b0\uff1f<\/li>\n<li><strong>\u68c0\u67e5\u5bbd\u5ea6<\/strong> \u6d4b\u91cf\u8109\u51b2\u7684\u6301\u7eed\u65f6\u95f4\u3002\u4e00\u4e2a\u201c\u9ad8\u201d\u7535\u5e73\u4fe1\u53f7\u662f\u5426\u8db3\u591f\u957f\uff0c\u4ee5\u88ab\u63a5\u6536\u903b\u8f91\u8bc6\u522b\uff1f<\/li>\n<li><strong> \u5bfb\u627e\u6bdb\u523a\uff1a<\/strong> \u5728\u7a33\u5b9a\u72b6\u6001\u4e4b\u95f4\u51fa\u73b0\u7684\u865a\u5047\u8109\u51b2\u3002\u8fd9\u53ef\u80fd\u662f\u7531\u4e32\u6270\u6216\u903b\u8f91\u5192\u9669\u5f15\u8d77\u7684\u3002<\/li>\n<li><strong> \u5206\u6790\u95f4\u9699\uff1a<\/strong> \u89c2\u5bdf\u4e00\u6b21\u4e8b\u52a1\u7ed3\u675f\u4e0e\u4e0b\u4e00\u6b21\u4e8b\u52a1\u5f00\u59cb\u4e4b\u95f4\u7684\u65f6\u95f4\u95f4\u9694\u3002\u786c\u4ef6\u662f\u5426\u6709\u8db3\u591f\u7684\u65f6\u95f4\u8fdb\u884c\u590d\u4f4d\uff1f<\/li>\n<\/ul>\n<p> \u901a\u5e38\uff0c\u95ee\u9898\u51fa\u5728\u95f4\u9699\u4e0a\u3002\u5982\u679c\u5fae\u63a7\u5236\u5668\u5b8c\u6210\u5411\u5916\u8bbe\u5199\u5165\u6570\u636e\u540e\uff0c\u53ef\u80fd\u9700\u8981\u5728\u53d1\u9001\u4e0b\u4e00\u4e2a\u5b57\u8282\u524d\u7b49\u5f85\u7279\u5b9a\u5ef6\u8fdf\u3002\u5982\u679c\u56fe\u8868\u663e\u793a\u8fd9\u4e9b\u5b57\u8282\u7d27\u5bc6\u76f8\u8fde\u800c\u6ca1\u6709\u95f4\u9699\uff0c\u8bf4\u660e\u4ee3\u7801\u53ef\u80fd\u5bf9\u786c\u4ef6\u8fc7\u4e8e\u6fc0\u8fdb\u3002<\/p>\n<h2> \ud83d\udd0c \u5e38\u89c1\u534f\u8bae\u4e0e\u65f6\u95f4\u8981\u6c42<\/h2>\n<p> \u4e0d\u540c\u7684\u901a\u4fe1\u534f\u8bae\u65bd\u52a0\u4e86\u4e0d\u540c\u7684\u65f6\u95f4\u7ea6\u675f\u3002\u7406\u89e3\u8fd9\u4e9b\u7ea6\u675f\u5bf9\u4e8e\u7f16\u5199\u80fd\u591f\u53ef\u9760\u901a\u4fe1\u7684\u56fa\u4ef6\u81f3\u5173\u91cd\u8981\u3002<\/p>\n<table>\n<thead>\n<tr>\n<th> \u534f\u8bae<\/th>\n<th> \u5173\u952e\u65f6\u95f4\u7279\u6027<\/th>\n<th> \u5e38\u89c1\u6545\u969c\u6a21\u5f0f<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong> UART<\/strong><\/td>\n<td> \u8d77\u59cb\u4f4d\u540e\u63a5\u6570\u636e\u4f4d\uff0c\u518d\u63a5\u505c\u6b62\u4f4d\u3002\u4f9d\u8d56\u4e8e\u6ce2\u7279\u7387\u3002<\/td>\n<td> \u7531\u4e8e\u53d1\u9001\u65b9\u548c\u63a5\u6536\u65b9\u65f6\u949f\u6f02\u79fb\u5bfc\u81f4\u7684\u4f4d\u9519\u8bef\u3002<\/td>\n<\/tr>\n<tr>\n<td><strong> I2C<\/strong><\/td>\n<td> SCL \u548c SDA \u7ebf\u8def\u3002\u9700\u8981\u4e0a\u62c9\u7535\u963b\u3002\u5728 SCL \u9ad8\u7535\u5e73\u65f6\uff0cSDA \u5fc5\u987b\u4fdd\u6301\u7a33\u5b9a\u3002<\/td>\n<td> \u603b\u7ebf\u4fdd\u6301\u6216\u65f6\u949f\u62c9\u4f38\u95ee\u9898\u5bfc\u81f4\u8d85\u65f6\u3002<\/td>\n<\/tr>\n<tr>\n<td><strong> SPI<\/strong><\/td>\n<td> \u65f6\u949f\u7ebf\u548c\u6570\u636e\u7ebf\u662f\u5206\u5f00\u7684\u3002\u8fb9\u6cbf\u89e6\u53d1\uff08CPOL\/CPHA \u8bbe\u7f6e\uff09\u3002<\/td>\n<td> \u4ece\u8bbe\u5907\u54cd\u5e94\u901f\u5ea6\u592a\u6162\uff0c\u65e0\u6cd5\u8ddf\u4e0a\u4e3b\u8bbe\u5907\u7684\u65f6\u949f\u901f\u5ea6\u3002<\/td>\n<\/tr>\n<tr>\n<td><strong> GPIO \u4e2d\u65ad<\/strong><\/td>\n<td> \u8fb9\u6cbf\u654f\u611f\u6027\u3002\u4e2d\u65ad\u670d\u52a1\u4f8b\u7a0b\u4e2d\u9700\u8981\u6700\u5c11\u7684\u5904\u7406\u65f6\u95f4\u3002<\/td>\n<td> \u7531\u4e8e\u524d\u4e00\u4e2a\u670d\u52a1\u4f8b\u7a0b\u6267\u884c\u65f6\u95f4\u8fc7\u957f\uff0c\u5bfc\u81f4\u4e2d\u65ad\u4e22\u5931\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p> \u4f8b\u5982\uff0c\u5728 SPI \u4e2d\uff0c\u65f6\u949f\u8fb9\u6cbf\u76f8\u5bf9\u4e8e\u6570\u636e\u7ebf\u7684\u65f6\u5e8f\u51b3\u5b9a\u4e86\u6570\u636e\u662f\u5728\u4e0a\u5347\u6cbf\u8fd8\u662f\u4e0b\u964d\u6cbf\u88ab\u9501\u5b58\u3002\u5982\u679c\u56fa\u4ef6\u5047\u8bbe\u4e00\u79cd\u6a21\u5f0f\uff0c\u800c\u786c\u4ef6\u914d\u7f6e\u4e3a\u53e6\u4e00\u79cd\u6a21\u5f0f\uff0c\u6570\u636e\u5c06\u88ab\u9519\u8bef\u8bfb\u53d6\u3002\u65f6\u5e8f\u56fe\u80fd\u76f4\u89c2\u5730\u9610\u660e\u8fd9\u79cd\u5173\u7cfb\uff0c\u4ece\u800c\u907f\u514d\u914d\u7f6e\u9519\u8bef\u3002<\/p>\n<h2> \ud83d\udd0d \u4e0e\u65f6\u95f4\u76f8\u5173\u7684\u6545\u969c\u6392\u67e5<\/h2>\n<p> 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\u5f53\u7ed3\u679c\u53d6\u51b3\u4e8e\u4e8b\u4ef6\u7684\u76f8\u5bf9\u65f6\u5e8f\u65f6\u3002\u5982\u679c\u4e24\u4e2a\u4fe1\u53f7\u540c\u65f6\u53d1\u751f\u53d8\u5316\uff0c\u5904\u7406\u987a\u5e8f\u5c31\u5f88\u91cd\u8981\u3002<\/li>\n<li><strong>\u4fe1\u53f7\u5b8c\u6574\u6027\uff1a<\/strong> \u957f\u8d70\u7ebf\u4e0a\u7684\u53cd\u5c04\u548c\u632f\u94c3\u53ef\u80fd\u5bfc\u81f4\u9519\u8bef\u7684\u7535\u5e73\u8f6c\u6362\u3002\u8be5\u56fe\u53ef\u80fd\u663e\u793a\u632f\u8361\uff0c\u800c\u5b9e\u9645\u4e0a\u5e94\u4e3a\u5e72\u51c0\u7684\u65b9\u6ce2\u3002<\/li>\n<li><strong>\u5efa\u7acb\/\u4fdd\u6301\u65f6\u95f4\u8fdd\u89c4\uff1a<\/strong> \u6570\u636e\u5728\u65f6\u949f\u8fb9\u6cbf\u9644\u8fd1\u53d8\u5316\u5f97\u592a\u8fd1\u3002\u8fd9\u901a\u5e38\u662f\u7531\u4e8e\u65f6\u949f\u901f\u5ea6\u5bf9\u4e8e\u903b\u8f91\u8def\u5f84\u6765\u8bf4\u8fc7\u9ad8\u6240\u81f4\u3002<\/li>\n<\/ul>\n<p> 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