{"id":105237,"date":"2026-09-15T01:57:00","date_gmt":"2026-09-14T17:57:00","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/105237.html"},"modified":"2026-09-15T01:57:00","modified_gmt":"2026-09-14T17:57:00","slug":"gpio%e8%be%93%e5%87%ba%e7%94%b5%e8%b7%af%e8%af%a6%e8%a7%a3","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/105237.html","title":{"rendered":"GPIO\u8f93\u51fa\u7535\u8def\u8be6\u89e3"},"content":{"rendered":"<\/p>\n<h4>GPIO\u786c\u4ef6\u7535\u8def\u8be6\u89e3<\/h4>\n<ul>\n<li>\u4e00\u3001GPIO\u7535\u8def\u56fe<\/li>\n<li>\u4e8c\u3001GPIO\u786c\u4ef6\u7535\u8def\u62c6\u5206<\/li>\n<li>\n<ul>\n<li>1. I\/O\u4fdd\u62a4\u7535\u8def<\/li>\n<li>\n<ul>\n<li>1.1 IO\u4fdd\u62a4\u7535\u8def\u4e86\u89e3<\/li>\n<li>1.2 IO\u4fdd\u62a4\u7535\u8def\u539f\u7406<\/li>\n<\/ul>\n<\/li>\n<li>2. \u8f93\u51fa\u7535\u8def:<\/li>\n<li>\n<ul>\n<li>1.1 \u8f93\u51fa\u7535\u8def\u4e86\u89e3<\/li>\n<li>1.2 \u8f93\u51fa\u7535\u8def\u7684\u539f\u7406<\/li>\n<li>\n<ul>\n<li>1.2.1 \u8f93\u51fa\u6570\u636e\u5bc4\u5b58\u5668<\/li>\n<li>1.2.2 \u590d\u7528\u5668<\/li>\n<li>1.2.3 \u8f93\u51fa\u63a7\u5236<\/li>\n<li>1.2.4 P-MOS\u548cN-MOS<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li>\u4e09. \u8f93\u51fa\u6a21\u5f0f<\/li>\n<li>\n<ul>\n<li>3.1 GPIO\u7684\u8f93\u51fa\u5de5\u4f5c\u6a21\u5f0f<\/li>\n<li>3.2 \u901a\u7528\u63a8\u633d\u8f93\u51fa (Push-Pull Output)<\/li>\n<li>3.3 \u901a\u7528\u5f00\u6f0f\u8f93\u51fa:<\/li>\n<li>\n<ul>\n<li>3.3.1 \u4e0a\u62c9\u7535\u963b<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li>\u56db\u3001\u603b\u7ed3<\/li>\n<\/ul>\n<hr \/>\n<h2>\u4e00\u3001GPIO\u7535\u8def\u56fe<\/h2>\n<p><font color=\"Blue\">\u6211\u4eec\u4e86\u89e3\u5b8cGPIO\u7684\u57fa\u672c\u6982\u5ff5\u540e, \u6765\u5bf9\u4e00\u4e2a\u9488\u811a\u6240\u5bf9\u5e94\u7684GPIO\u786c\u4ef6\u7535\u8def\u8fdb\u884c\u5c55\u5f00\u4ecb\u7ecd. <\/font> \u6211\u4eec\u77e5\u9053ARM-CPU\u53ef\u4ee5\u76f4\u63a5\u63a7\u5236GPIO\u6765\u8f93\u51fa\u66f4\u597d\u5730\u7535\u5e73, \u540c\u6837\u7684\u5176\u4ed6\u7247\u4e0a\u5916\u8bbe\u4e5f\u53ef\u4ee5\u4f7f\u7528\u590d\u7528GPIO\u7684\u6a21\u5f0f. \u4f46\u672c\u8d28\u4e0a\u4e0d\u7ba1\u662fARM-CPU\u8fd8\u662f\u5176\u4ed6\u7247\u4e0a\u5916\u8bbe. \u4f7f\u7528GPIO\u7684\u672c\u8d28\u5c31\u662f\u4f7f\u7528\u4e0b\u9762\u8fd9\u4e2a\u786c\u4ef6\u7535\u8def <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/09\/20260914175653-6aa83565156af.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/> <font color=\"Blue\">\u8f93\u5165\u90e8\u5206 \u7535\u8def\u56fe<\/font><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/09\/20260914175653-6aa835654dad4.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/> <font color=\"Blue\">\u8f93\u51fa\u90e8\u5206\u7535\u8def\u56fe<\/font><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/09\/20260914175653-6aa8356580aba.png\" alt=\"\" \/><\/p>\n<hr \/>\n<h2>\u4e8c\u3001GPIO\u786c\u4ef6\u7535\u8def\u62c6\u5206<\/h2>\n<h3>1. I\/O\u4fdd\u62a4\u7535\u8def<\/h3>\n<h4>1.1 IO\u4fdd\u62a4\u7535\u8def\u4e86\u89e3<\/h4>\n<p><font color=\"Red\">\u8fd9\u4e2aIO\u4fdd\u62a4\u7535\u8def\u53c8\u53eb\u53cc\u4e8c\u6781\u7ba1\u94b3\u4f4d\u7535\u8def<\/font> \u5f15\u811a\u7684\u4e0a\u4e0b\u4e24\u4fa7,\u4e00\u8fb9\u63a5\u7684\u9ad8\u7535\u5e73VDD, \u4e00\u8fb9\u63a5\u7684\u4f4e\u7535\u5e73VSS. \u4e14\u5404\u63a5\u4e86\u4e00\u4e2a\u4fdd\u62a4\u4e8c\u6781\u7ba1. \u8fd9\u4e9b\u5143\u4ef6\u5171\u540c\u6784\u6210\u4e86\u4e00\u4e2a\u53cc\u4e8c\u7ea7\u7ba1\u94b3\u4f4d\u7535\u8def.<\/p>\n<p>\u4e8c\u6781\u7ba1\u4ee3\u4ef7\u5e94\u8be5\u90fd\u4e86\u89e3: \u6709\u5355\u5411\u5bfc\u7535\u6027,\u7535\u6d41\u53ea\u80fd\u4ece\u9633\u6781\u6d41\u5411\u9634\u6781. \u5982\u679c\u9633\u6781\u7535\u538b\u4e0e\u9634\u6781\u7535\u538b\u7684\u7535\u538b\u5dee\u5927\u4e8e\u5bfc\u901a\u7535\u538b, \u4e8c\u6781\u7ba1\u5904\u4e8e\u8fde\u901a\u72b6\u6001. <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/09\/20260914175653-6aa83565e0b6a.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<h4>1.2 IO\u4fdd\u62a4\u7535\u8def\u539f\u7406<\/h4>\n<p>\u8fd9\u4e2a\u53cc\u4e8c\u6781\u7ba1\u94b3\u4f4d\u4fdd\u62a4\u7535\u8def\u662f\u4fdd\u62a4\u4ec0\u4e48\u7684\u5462:<\/p>\n<p>\u6211\u4eec\u7ed9\u5b9a\u4e00\u4e2a\u8f93\u5165\u7535\u538b, \u4f1a\u4ea7\u751f\u4e00\u4e2a\u7535\u6d41\u6d41\u5165\u7535\u8def. \u5982\u679c\u7535\u6d41\u8fc7\u5927. \u90a3\u4e48\u7535\u6d41\u6d41\u7ecf\u7684\u5143\u5668\u4ef6\u5c31\u4f1a\u88ab\u70e7\u574f. \u8fd9\u4e2a\u4fdd\u62a4\u7535\u8def\u5c31\u662f\u53ea\u6709\u5f53\u6211\u4eec\u7ed9\u7684\u8f93\u5165\u7535\u538b\u5728\u4e00\u4e2a\u5b89\u5168\u8303\u56f4\u5185\u7684\u65f6\u5019, \u624d\u4f1a\u8fdb\u5165\u5230\u5185\u90e8\u7535\u8def.<\/p>\n<p>\u4e3e\u4e2a\u4f8b\u5b50: <font color=\"Blue\">\u4e8c\u6781\u7ba1\u5bfc\u901a\u7535\u538b\u4f4d0.7v, \u5f53\u6211\u4eec\u8f93\u5165\u7535\u538b\u4e3a3.5v\u7684\u65f6\u5019. \u4e8c\u6781\u7ba1\u9633\u6781\u9634\u6781\u7535\u538b\u5dee\u4e3a0.2v, \u4e0a\u94b3\u4f4d\u4e8c\u6781\u7ba1\u4e0d\u5bfc\u901a, \u8f93\u5165\u7535\u538b\u6b63\u5e38\u6d41\u5165\u7535\u8def\u5185\u90e8. \u5f53\u6211\u4eec\u8f93\u5165\u7535\u538b\u4e3a4v\u7684\u65f6\u5019, \u4e8c\u6781\u7ba1\u9633\u6781\u5370\u8bb0\u7535\u538b\u5dee\u4e3a0.7v \u4e0a\u94b3\u4f4d\u4e8c\u6781\u7ba1\u5bfc\u901a, \u8f93\u5165\u7535\u538b\u4ece\u94b3\u4f4d\u7535\u8def\u4e0a\u94b3\u4f4d\u6e9c\u8d70\u4e86(\u770b\u56fe\u7247\u7684\u84dd\u8272\u7ebf\u6761), \u8f93\u5165\u7535\u538b\u4e0d\u4f1a\u8d70\u5230\u5185\u90e8\u7535\u8def. \u8fd9\u6837\u4fdd\u8bc1\u4e86\u8fdb\u5165MCU\u5185\u90e8\u7535\u8def\u7684\u7535\u538b\u4e0d\u4f1a\u8d85\u8fc74v, \u4ea7\u751f\u7684\u7535\u6d41\u4e5f\u4e0d\u4f1a\u5f62\u6210\u8fc7\u8f7d. \u8fd9\u6837\u5c31\u4fdd\u62a4\u4e86\u5185\u90e8\u7535\u8def.<\/font><\/p>\n<p>\u518d\u4e3e\u4e2a\u4f8b\u5b50: <font color=\"Red\">\u4e8c\u6781\u7ba1\u5bfc\u901a\u7535\u538b\u4f4d0.7v, \u5f53\u6211\u4eec\u8f93\u5165\u7535\u538b\u4e3a-0.3V\u7684\u65f6\u5019. \u4e0b\u94b3\u4f4d\u4e8c\u6781\u7ba1\u9633\u6781\u9634\u6781\u7535\u538b\u5dee\u4e3a0.3v, \u4e0b\u94b3\u4f4d\u4e8c\u6781\u7ba1\u4e0d\u5bfc\u901a, \u8f93\u5165\u7535\u538b\u6b63\u5e38\u6d41\u5165\u7535\u8def\u5185\u90e8. \u5f53\u6211\u4eec\u8f93\u5165\u7535\u538b\u4e3a-0.7V\u7684\u65f6\u5019. \u4e0b\u94b3\u4f4d\u4e8c\u6781\u7ba1\u9633\u6781\u9634\u6781\u7535\u538b\u5dee\u4e3a0.7v, \u4e0b\u94b3\u4f4d\u4e8c\u6781\u7ba1\u5bfc\u901a, \u5f62\u6210\u53e6\u4e00\u4e2a\u56de\u8def(\u770b\u56fe\u7247\u7684\u7ea2\u8272\u7ebf\u6761). \u8f93\u5165\u5f88\u5927\u7684\u8d1f\u7535\u538b\u4e5f\u4e0d\u4f1a\u8fdb\u5165\u5230\u56de\u8def\u4e2d.<\/font><\/p>\n<p>\u4e5f\u5c31\u610f\u5473\u7740, \u51e1\u662f\u80fd\u8fdb\u5165\u5230MCU\u5185\u90e8\u7684\u8f93\u5165\u7535\u538b\u8303\u56f4\u53ea\u80fd\u662f-0.7V\u52304V. <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/09\/20260914175654-6aa83566071d0.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<h3>2. \u8f93\u51fa\u7535\u8def:<\/h3>\n<h4>1.1 \u8f93\u51fa\u7535\u8def\u4e86\u89e3<\/h4>\n<p><font color=\"Red\">GPIO\u7684\u8f93\u51fa\u5de5\u4f5c\u6a21\u5f0f\u6709\u56db\u79cd: \u901a\u7528\u63a8\u633d\u8f93\u51fa, \u901a\u7528\u5f00\u6f0f\u8f93\u51fa, \u590d\u7528\u63a8\u633d\u8f93\u51fa, \u590d\u7528\u5f00\u6f0f\u8f93\u51fa. <\/font><\/p>\n<p>\u6240\u8c13\u901a\u7528: \u5c31\u662fARM-CPU\u76f4\u63a5\u63a7\u5236GPIO\u8f93\u51fa, \u5c31\u53eb\u901a\u7528\u5f00\u6f0f\/\u63a8\u633d\u8f93\u51fa \u6240\u8c13\u590d\u7528: GPIO\u7535\u8def\u88ab\u7247\u4e0a\u5916\u8bbe(IIC, SPI\u7b49\u7b49),\u5c31\u53eb\u590d\u7528\u5f00\u6f0f\/\u63a8\u633d\u8f93\u51fa <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/09\/20260914175654-6aa83566c82e3.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<h4>1.2 \u8f93\u51fa\u7535\u8def\u7684\u539f\u7406<\/h4>\n<p>\u6211\u4eec\u628a\u4e0a\u9762\u7684\u8f93\u51fa\u7535\u8def\u518d\u7b80\u5316\u4e00\u4e0b: <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/09\/20260914175655-6aa83567243c5.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<h5>1.2.1 \u8f93\u51fa\u6570\u636e\u5bc4\u5b58\u5668<\/h5>\n<p>\u8001\u94c1\u4eec\u628a\u53ef\u4ee5\u770b\u5230\u6211\u53ea\u4fdd\u7559\u4e86\u8f93\u51fa\u6570\u636e\u5bc4\u5b58\u5668. \u8fd9\u662f\u56e0\u4e3a\u7ad9\u5728\u8f93\u51fa\u89d2\u5ea6: GPIO\u8f93\u51fa\u7535\u8def\u4e2d\u5305\u542b\u4e00\u4e2a\u8f93\u51fa\u6570\u636e\u5bc4\u5b58\u5668, \u8fd9\u4e2a\u5bc4\u5b58\u5668\u672a\u6765\u662f\u88abarm-cpu\u8fdb\u884c\u5199\u5165\u7684, \u4ece\u800c\u5b9e\u73b0\u63a7\u5236\u5f15\u811a\u8f93\u51fa\u9ad8\u4f4e\u7535\u5e73\u7684\u76ee\u7684.<\/p>\n<h5>1.2.2 \u590d\u7528\u5668<\/h5>\n<p>\u4ece\u591a\u7ec4\u8f93\u5165\u4fe1\u53f7\u4e2d, \u9009\u62e9\u4e00\u4e2a\u4f5c\u4e3a\u6709\u6548\u8f93\u5165. \u4e5f\u5c31\u662f\u8bf4GPIO\u662f\u88abARM-CPU\u76f4\u63a5\u4f7f\u7528\u8fd8\u662f\u88ab\u5176\u4ed6\u7247\u4e0a\u5916\u8bbe\u4f7f\u7528\u8fbe\u5230\u670d\u7528\u6548\u679c\u5c31\u6709\u590d\u7528\u5668\u9501\u4e86\u7b97.<\/p>\n<h5>1.2.3 \u8f93\u51fa\u63a7\u5236<\/h5>\n<p>\u63a5\u53d7\u590d\u7528\u5668\u9009\u62e9\u7684\u4fe1\u53f7\u7684\u903b\u8f91\u7535\u5e73, \u76f4\u63a5\u9a71\u52a8MOS\u7ba1\u7684\u6805\u6781,\u63a7\u5236MOS\u7ba1\u7684\u901a\u65ad. \u5b9e\u73b0\u5c06\u5f31\u4fe1\u53f7\u8f6c\u6362\u4e3a\u5177\u6709\u8db3\u591f\u9a71\u52a8\u80fd\u529b\u7684\u5916\u90e8\u8f93\u51fa\u7535\u5e73.<\/p>\n<h5>1.2.4 P-MOS\u548cN-MOS<\/h5>\n<p>P-MOS: P Channel Metal-Oxide-Semiconductor , P\u6c9f\u9053\u91d1\u5c5e\u6c27\u5316\u7269\u534a\u5bfc\u4f53 P\u4ee3\u8868Positive: \u6b63\u5411\u7684<\/p>\n<p>N-MOS: N Channel Metal-Oxide-Semiconductor , N\u6c9f\u9053\u91d1\u5c5e\u6c27\u5316\u7269\u534a\u5bfc\u4f53 N\u4ee3\u8868Negative: \u53cd\u5411\u7684<\/p>\n<p><font color=\"Red\">P-MOS\u548cN-MOS\u672c\u8d28\u4e0a\u662f\u4e00\u79cd\u5f00\u5173, \u901a\u8fc7\u7ed9\u6805\u6781\u65bd\u52a0\u4e00\u4e2a\u5c0f\u7535\u538b\u63a7\u5236\u5bf9\u5e94MOS\u7ba1\u7684\u5f00\u5173\u95ed\u5408,\u4ece\u800c\u5b9e\u73b0\u63a7\u5236\u5927\u7535\u6d41\u7684\u76ee\u7684.<\/font> <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/09\/20260914175655-6aa8356776b63.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/> <font color=\"Red\">G: (Gate \u6805\u6781) D: (Drain \u6f0f\u6781): S: (Source \u6e90\u6781) \u6ca1\u6709\u7ed9G\u2013\u6805\u6781\u65bd\u52a0\u4e00\u4e2a\u5bfc\u901a\u7535\u538b, \u5c31\u9ed8\u8ba4MOS\u7ba1\u662f\u65ad\u5f00\u7684. \u7ed9P-MOS\u7ba1\u7684G\u2013\u6805\u6781\u65bd\u52a0\u4e00\u4e2a\u5bfc\u901a\u7535\u538b, \u5bfc\u901aP-MOS\u7ba1. \u7535\u6d41\u65b9\u5411\u662f\u4eceS\u2013\u6e90\u6781\u6d41\u5230D\u2013\u6f0f\u6781. \u7ed9N-MOS\u7ba1\u7684G\u2013\u6805\u6781\u65bd\u52a0\u4e00\u4e2a\u5bfc\u901a\u7535\u538b, \u5bfc\u901aN-MOS\u7ba1. \u7535\u6d41\u65b9\u5411\u662f\u4eceD\u2013\u6f0f\u6781\u6d41\u5230S\u2013\u6e90\u6781.<\/font><\/p>\n<p>\u5bf9\u4efb\u610fMOS\u7ba1\u7684\u5bfc\u901a\u7535\u538b, \u88ab\u79f0\u4e3aVth Voltage Threshold(\u9608\u503c\u7535\u538b). \u4e00\u822c\u4e3a0.3V-1V. P-MOS\u7ba1\u5bfc\u901a\u7684\u6761\u4ef6\u662f: \u6e90\u6781S\u548c\u6805\u7ea7G\u7684\u7535\u538b\u5dee\u8981\u5927\u4e8e\u9608\u503c\u7535\u538bVth. \u5373 Vs-Vg&gt;Vth. N-MOS\u7ba1\u5bfc\u901a\u7684\u6761\u4ef6\u662f: \u6805\u7ea7G\u548c\u6e90\u6781S\u7684\u7535\u538b\u5dee\u8981\u5927\u4e8e\u9608\u503c\u7535\u538bVth. \u5373 Vg-Vs&gt;Vth.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/09\/20260914175655-6aa83567a58de.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/> GPIO\u8f93\u51fa\u7535\u8def\u7684\u4e24\u4e2aMOS\u7ba1\u76f8\u8fde\u5c31\u662f\u4e0b\u56fe\u8fd9\u79cd\u60c5\u51b5. \u5c06\u4e24\u4e2aMOS\u7ba1\u7684D\u2013\u6f0f\u6781\u63a5\u5728\u4e00\u8d77, \u5e76\u8fde\u63a5\u4e00\u4e2a\u5916\u90e8\u5f15\u811a.F<\/p>\n<p><font color=\"Red\">\u7531\u6b64\u53ef\u4ee5\u770b\u51faGPIO\u8f93\u51fa\u7684\u672c\u8d28\u5c31\u662f: \u8f93\u51fa\u63a7\u5236\u6839\u636e\u5199\u5165\u5bc4\u5b58\u5668\u7684\u503c\u6765\u63a7\u5236\u8fd9\u4e24\u4e2aMOS\u7ba1\u7684\u95ed\u5408\u95ee\u9898.<\/font><\/p>\n<p>\u5982\u679c\u6211\u4eec\u7528\u8f93\u51fa\u63a7\u5236\u7ed9P-MOS\u7ba1\u7684G\u2013\u6805\u6781\u65bd\u52a0\u5bfc\u901a\u7535\u538b, \u95ed\u5408P-MOS.N-MOS\u7ba1\u5904\u4e8e\u65ad\u5f00\u72b6\u6001. \u7535\u6d41\u4f1a\u4eceS\u2013\u6e90\u6781\u6d41\u5411D\u2013\u6f0f\u6781. \u6b64\u65f6\u6f0f\u6781\u5df2\u7ecf\u63a5\u901a\u5916\u90e8\u9488\u811a, \u8fd9\u4e2a\u9488\u811a\u8f93\u51fa\u7684\u5c31\u662f\u9ad8\u7535\u5e73. \u5982\u679cP-MOS\u7ba1\u6301\u7eed\u95ed\u5408, \u5f15\u811a\u5904\u7684\u9ad8\u7535\u5e73\u4e5f\u4f1a\u4e00\u76f4\u6301\u7eed\u4e0b\u53bb.<\/p>\n<p>\u5982\u679c\u6211\u4eec\u7528\u8f93\u51fa\u63a7\u5236\u7ed9N-MOS\u7ba1\u7684G\u2013\u6805\u6781\u65bd\u52a0\u5bfc\u901a\u7535\u538b, \u95ed\u5408N-MOS. P-MOS\u7ba1\u5904\u4e8e\u65ad\u5f00\u72b6\u6001. \u7535\u6d41\u4f1a\u4eceN-MOS\u7ba1\u7684S\u2013\u6e90\u6781\u6d41\u5411D\u2013\u6f0f\u6781. \u6b64\u65f6\u5916\u90e8\u5f15\u811a\u8d70\u5230MCU\u5185\u90e8\u901a\u8fc7N-MOS\u7ba1\u76f4\u63a5\u63a5\u5730\u4e86. \u6b64\u65f6\u8fd9\u4e2a\u9488\u811a\u5c31\u8f93\u51fa\u4f4e\u7535\u5e73.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/09\/20260914175655-6aa83567d3b66.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<h2>\u4e09. \u8f93\u51fa\u6a21\u5f0f<\/h2>\n<h3>3.1 GPIO\u7684\u8f93\u51fa\u5de5\u4f5c\u6a21\u5f0f<\/h3>\n<p>GPIO\u6709\u56db\u79cd\u8f93\u51fa\u5de5\u4f5c\u6a21\u5f0f: \u901a\u7528\u63a8\u633d\u8f93\u51fa, \u901a\u7528\u5f00\u6f0f\u8f93\u51fa, \u590d\u7528\u63a8\u633d\u8f93\u51fa, \u590d\u7528\u5f00\u6f0f\u8f93\u51fa. <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/09\/20260914175656-6aa835688dea4.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<h3>3.2 \u901a\u7528\u63a8\u633d\u8f93\u51fa (Push-Pull Output)<\/h3>\n<p>\u5982\u679c\u662f\u63a8\u633d\u6a21\u5f0f\u8f93\u51fa: \u5982\u53c2\u8003\u624b\u518c\u7684\u56fe\u6240\u793a, \u8f93\u51fa\u5bc4\u5b58\u5668\u4e0a\u5199&#034;0&#034;, \u8f93\u51fa\u63a7\u5236\u5b9a\u5411\u6fc0\u6d3bN-MOS, \u8f93\u51fa\u5bc4\u5b58\u5668\u4e0a\u5199&#034;1&#034;, \u8f93\u51fa\u63a7\u5236\u5b9a\u5411\u6fc0\u6d3bP-MOS. \u5373: \u5982\u679c\u6211\u4eec\u5f80\u8f93\u51fa\u5bc4\u5b58\u5668\u51991, \u5b9a\u5411\u95ed\u5408P-MOS, \u65ad\u5f00N-MOS, \u5f15\u811a\u8f93\u51fa\u4e3a\u9ad8\u7535\u5e73.<\/p>\n<p><font color=\"Red\">\u6240\u4ee5\u6211\u4eec\u5f97\u5230\u7ed3\u8bba: \u5728\u63a8\u633d\u8f93\u51fa\u6a21\u5f0f\u4e0b: \u51990\u5c31\u8f93\u51fa\u4f4e\u7535\u5e73, \u51991\u5c31\u8f93\u51fa\u9ad8\u7535\u5e73.<\/font><\/p>\n<p>\u4ec0\u4e48\u53eb\u63a8\u633d: \u6839\u636e\u4ee5\u4e0a\u7684\u4f8b\u5b50: <font color=\"Red\">\u5f15\u811a\u8f93\u51fa\u7684\u9ad8\u7535\u538b\u7684\u8fc7\u7a0b, (\u5411\u5916\u90e8\u63d0\u4f9b\u7535\u6d41)\u5c31\u76f8\u5f53\u4e8e\u63a8. \u5f15\u811a\u8f93\u51fa\u7684\u4f4e\u7535\u538b\u7684\u8fc7\u7a0b, (\u5411\u5185\u90e8\u62c9\u53bb\u7535\u6d41)\u76f8\u5f53\u4e8e\u633d. \u56e0\u4e3a\u5f15\u811a\u901a\u8fc7N-MOS\u76f4\u63a5\u5728MCU\u5185\u90e8\u63a5\u5730.<\/font><\/p>\n<p>\u8bf4\u5230\u8fd9\u91cc\u80af\u5b9a\u7531\u8001\u94c1\u95ee\u4e86: P-MOS\u548cN-MOS\u4e0d\u80fd\u540c\u65f6\u6253\u5f00\u5417? <font color=\"Red\">\u662f\u7684, \u4e0d\u80fd\u540c\u65f6\u6253\u5f00. \u5047\u5982P-MOS\u548cN-MOS\u540c\u65f6\u5bfc\u901a, \u7535\u6d41\u76f4\u63a5\u4eceP-MOS\u7684S\u2013\u6e90\u7ea7(VDD)\u6d41\u5411N-MOS\u7684S\u2013\u6e90\u6781(GND). \u7b49\u4e8e\u4e00\u4e2a\u7535\u6c60\u76f4\u63a5\u628a\u6b63\u8d1f\u6781\u8fde\u63a5\u8d77\u6765\u4e86, \u4f1a\u9020\u6210\u4e25\u91cd\u7684\u77ed\u8def\u95ee\u9898, \u70e7\u6bc1\u7535\u8def.<\/font><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/09\/20260914175656-6aa83568d6fad.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<h3>3.3 \u901a\u7528\u5f00\u6f0f\u8f93\u51fa:<\/h3>\n<p>\u5f00\u6f0f\u8f93\u51fa\u6838\u5fc3\u601d\u60f3: <font color=\"Red\">\u8ba9P-MOS\u7ba1\u6c38\u8fdc\u65ad\u5f00, \u53ea\u4f7f\u7528N-MOS\u7ba1. <\/font><\/p>\n<p>\u5f00\u6f0f\u8f93\u51fa: \u65e0\u6cd5\u8f93\u51fa\u9ad8\u7535\u5e73, \u53ea\u80fd\u8f93\u51fa\u4f4e\u7535\u5e73\u548c\u9ad8\u963b\u6297.<\/p>\n<p>\u5982\u679c\u6211\u4eec<font color=\"Red\">\u5728\u8f93\u51fa\u5bc4\u5b58\u5668\u4e0a\u5199&#034;0&#034;, N-MOS\u7ba1\u5bfc\u901a; \u5728\u8f93\u51fa\u5bc4\u5b58\u5668\u4e0a\u5199&#034;1&#034;, N-MOS\u7ba1\u65ad\u5f00.<\/font><\/p>\n<p><font color=\"Blue\">\u5728\u8f93\u51fa\u5bc4\u5b58\u5668\u4e0a\u5199&#034;0&#034;, N-MOS\u7ba1\u5bfc\u901a, \u5916\u90e8\u5f15\u811a\u76f4\u63a5\u901a\u8fc7N-MOS\u7ba1\u63a5\u5730. \u8f93\u51fa\u8868\u73b0\u4e3a\u4f4e\u7535\u5e73. \u5728\u8f93\u51fa\u5bc4\u5b58\u5668\u4e0a\u5199&#034;1&#034;, N-MOS\u7ba1\u65ad\u5f00, \u6b64\u65f6\u5916\u90e8\u5f15\u811a\u4e0eMCU\u65ad\u5f00\u8fde\u63a5, \u5f15\u811a\u5904\u4e8e\u60ac\u7a7a\u72b6\u6001. \u6211\u4eec\u79f0\u4e4b\u4e3a\u8f93\u51fa\u9ad8\u963b\u6297. <\/font><\/p>\n<p><font color=\"Red\">(\u9ad8\u963b\u6297: \u53ea\u662f\u4e00\u79cd\u8bf4\u6cd5, \u771f\u5b9e\u60c5\u51b5\u662fMCU\u4e0e\u5916\u90e8\u9488\u811a\u5f7b\u5e95\u65ad\u5f00, \u76f8\u5f53\u4e8e\u5f00\u8def\u4e86. \u800c\u5f00\u8def\u5c31\u76f8\u5f53\u4e8e\u7535\u8def\u4e2d\u6709\u4e00\u4e2a\u65e0\u7a77\u5927\u7684\u7535\u963b, \u5c31\u53eb\u9ad8\u963b\u6297.)<\/font><\/p>\n<p>\u4e3a\u4ec0\u4e48\u53eb\u5f00\u6f0f\u8f93\u51fa: \u5f00\u6f0f\u8f93\u51fa\u5168\u79f0\u53eb<font color=\"Red\">\u6f0f\u6781\u5f00\u8def\u8f93\u51fa<\/font>. \u56e0\u4e3a\u6ca1\u6709\u4e86P-MOS\u7ba1, \u6240\u4ee5N-MOS\u7ba1\u7684\u6f0f\u6781\u76f8\u5f53\u4e8e\u4ec0\u4e48\u4e5f\u6ca1\u6709\u63a5, \u6240\u4ee5\u53eb\u505a\u6f0f\u6781\u5f00\u8def. \u7b80\u79f0\u5f00\u6f0f\u8f93\u51fa.<\/p>\n<p>\u4e0b\u56fe\u4e3a\u5f00\u6f0f\u8f93\u51fa\u7684\u539f\u7406\u56fe\u7b80\u5316: <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/09\/20260914175657-6aa8356991dc2.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<h4>3.3.1 \u4e0a\u62c9\u7535\u963b<\/h4>\n<p>\u6211\u4eec\u4e86\u89e3\u4e86\u5f00\u6f0f\u8f93\u51fa, \u5f15\u811a\u4e0d\u53ef\u80fd\u8f93\u51fa\u9ad8\u7535\u5e73. \u53ea\u80fd\u8f93\u51fa\u9ad8\u963b\u6297\u548c\u4f4e\u7535\u5e73. \u5982\u679c\u6211\u4eec\u5c31\u60f3\u8981\u5f00\u6f0f\u8f93\u51fa\u8f93\u51fa\u5f15\u811a\u8f93\u51fa\u9ad8\u7535\u5e73\u600e\u4e48\u64cd\u4f5c? <font color=\"Red\">\u6211\u4eec\u53ef\u4ee5\u5728\u9ad8\u963b\u6297\u72b6\u6001\u4e0b, \u5728\u5f15\u811a\u5916\u90e8\u63a5\u4e00\u4e2a\u5916\u90e8\u7535\u6e90\u548c\u4e0a\u62c9\u7535\u963b.<\/font><\/p>\n<p>\u5728\u63a5\u5165\u4e0a\u62c9\u7535\u963b\u7684\u60c5\u51b5\u4e0b: <font color=\"Blue\">\u5728\u8f93\u51fa\u5bc4\u5b58\u5668\u4e0a\u5199&#034;0&#034;, N-MOS\u7ba1\u5bfc\u901a, \u5916\u90e8\u5f15\u811a\u76f4\u63a5\u901a\u8fc7N-MOS\u7ba1\u63a5\u5730. \u5373\u4f7f\u6709\u5916\u90e8\u9ad8\u7535\u5e73\u548c\u4e0a\u62c9\u7535\u963b, \u5f15\u811a\u8f93\u51fa\u8868\u73b0\u4f9d\u65e7\u4e3a\u4f4e\u7535\u5e73. \u5728\u8f93\u51fa\u5bc4\u5b58\u5668\u4e0a\u5199&#034;1&#034;, N-MOS\u7ba1\u65ad\u5f00, \u6b64\u65f6\u5916\u90e8\u5f15\u811a\u4e0eMCU\u65ad\u5f00\u8fde\u63a5. \u6b64\u65f6\u6709\u5916\u90e8\u9ad8\u7535\u538bVDD\u4f9b\u7535, \u6b64\u65f6\u5f15\u811a\u5904\u8f93\u51fa\u4e3a\u9ad8\u7535\u538b. <\/font> <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/09\/20260914175658-6aa8356a57064.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<p><font color=\"Blue\">\u6211\u76f8\u4fe1\u80af\u5b9a\u6709\u8001\u94c1\u4f1a\u95ee: \u4f60\u8bf4\u4f60\u63a5\u4e2aVDD\u662f3.3V\u6ca1\u9519, \u4f46\u662f\u4f60\u8fd8\u6709\u4e2a\u4e0a\u62c9\u7535\u963b, \u4f60\u7535\u963b\u4e0d\u5206\u538b\u554a, \u4e3a\u5565\u5f15\u811a\u8f93\u51fa\u8fd8\u662f3.3V\u9ad8\u7535\u5e73???<\/font><\/p>\n<p>\u6211\u628a\u4e0a\u56fe\u8fd9\u4e2a\u7535\u8def\u6539\u9020\u4e3a\u8fd9\u6837\u7684\u7b49\u6548\u7535\u8def, \u5927\u5bb6\u770b\u7684\u76f4\u89c2\u4e00\u70b9. \u5176\u5b9e\u76f4\u767d\u7684\u8bf4\u5c31\u662f, N-MOS\u7ba1\u65ad\u5f00\u540e, \u76f8\u5f53\u4e8e\u5f00\u8def, \u5f00\u8def\u5c31\u76f8\u5f53\u4e8e\u8fde\u63a5\u4e86\u4e00\u4e2a\u65e0\u7a77\u5927\u963b\u503c\u7684\u7535\u963b. \u6b64\u65f6\u7535\u8def\u4e2d\u7535\u6d41\u65e0\u9650\u8d8b\u8fd1\u4e8e0A. \u6839\u636e\u4e32\u8054\u5206\u538b, \u6211\u4eec\u77e5\u9053\u4e0a\u62c9\u7535\u963b\u5206\u538b\u4e3a 0A x R_Pull. \u5f15\u811a\u5904\u7684\u5206\u538b\u4e3a 0A x R1. \u7ea6\u7b49\u4e8e\u6ca1\u6709\u5206\u538b.\u6240\u4ee5\u5f15\u811a\u5904\u7684\u7535\u538b\u4e3a3.3V.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/09\/20260914175658-6aa8356a79c6b.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<p>\u4e3a\u4ec0\u4e48\u9700\u8981\u4e0a\u62c9\u7535\u963b:<\/p>\n<p><font color=\"Red\">\u6211\u4eec\u5728\u5f00\u6f0f\u8f93\u51fa\u6a21\u5f0f\u5199\u51650, N-MOS\u7ba1\u95ed\u5408. \u5982\u679c\u6ca1\u6709\u4e0a\u62c9\u7535\u963b, VCC\u76f4\u63a5\u901a\u8fc7N-MOS\u7ba1\u63a5\u5730\u4e86. \u5916\u90e8\u7535\u8def\u7ecf\u8fc7MCU\u5185\u90e8\u540e,\u77ed\u8def\u4e86. \u4f1a\u70e7\u6bc1MCU. \u6240\u4ee5\u6211\u4eec\u8fd9\u91cc\u9700\u8981\u4e00\u4e2a\u4e0a\u62c9\u7535\u963b.<\/font><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/09\/20260914175658-6aa8356adbfcd.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<p>\u4e3a\u4ec0\u4e48\u53eb\u505a\u4e0a\u62c9\u7535\u963b: \u56e0\u4e3a\u5f00\u6f0f\u6a21\u5f0f, \u5f15\u811a\u8f93\u51fa\u9ad8\u7535\u538b\u662f\u7531\u4e8e\u5916\u90e8\u63a5\u5165\u7535\u963b&#043;\u9ad8\u7535\u538b\u62c9\u8d77\u6765\u7684, \u6240\u4ee5\u628a\u8fd9\u4e2a\u7535\u963b\u53eb\u505a\u4e0a\u62c9\u7535\u963b. \u4e00\u822c\u4e0a\u62c9\u7535\u963b\u8fd9\u53ea\u4e3a4.7k\u03a9\u523010k\u03a9.<\/p>\n<h2>\u56db\u3001\u603b\u7ed3<\/h2>\n<p>\u6211\u4eec\u4e86\u89e3\u4e86\u4e00\u4e2aGPIO\u7684\u8f93\u51fa\u90e8\u5206\u7535\u8def\u548c\u8f93\u51fa\u6a21\u5f0f. \u5305\u62ec\u4e86\u8f93\u51fa\u90e8\u5206\u7535\u8def\u7684\u5404\u4e2a\u5143\u5668\u4ef6\u8bb2\u89e3, \u4ee5\u53ca\u4ed6\u4eec\u662f\u5982\u4f55\u8fbe\u5230\u65e2\u5b9a\u8f93\u51fa\u76ee\u6807\u7684. \u4e0b\u4e00\u7ae0\u8282, \u6211\u4f1a\u7ed9\u8001\u94c1\u4ecb\u7ecd\u8f93\u5165\u90e8\u5206\u7535\u8def.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>GPIO\u786c\u4ef6\u7535\u8def\u8be6\u89e3\u4e00\u3001GPIO\u7535\u8def\u56fe\u4e8c\u3001GPIO\u786c\u4ef6\u7535\u8def\u62c6\u52061. I\/O\u4fdd\u62a4\u7535\u8def1.1 IO\u4fdd\u62a4\u7535\u8def\u4e86\u89e31.2 IO\u4fdd\u62a4\u7535\u8def\u539f\u74062. \u8f93\u51fa\u7535\u8def:1.1 \u8f93\u51fa\u7535\u8def\u4e86\u89e31.2 \u8f93\u51fa\u7535\u8def\u7684\u539f\u74061.2.1 \u8f93\u51fa\u6570\u636e\u5bc4\u5b58\u56681.2.2 \u590d\u7528\u56681.2.3 \u8f93\u51fa\u63a7\u52361.2.4 P-MOS\u548cN-MOS\u4e09. \u8f93\u51fa\u6a21\u5f0f3.1 GPIO\u7684\u8f93\u51fa\u5de5\u4f5c\u6a21\u5f0f3.2 \u901a\u7528\u63a8\u633d\u8f93\u51fa (Push-Pull Output)3.3 \u901a\u7528\u5f00\u6f0f\u8f93\u51fa:3.3.1 \u4e0a\u62c9\u7535\u963b\u56db\u3001\u603b\u7ed3\u4e00\u3001GPIO\u7535\u8def\u56fe<br \/>\n\u6211\u4eec\u4e86\u89e3\u5b8cGPIO\u7684<\/p>\n","protected":false},"author":2,"featured_media":105221,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[11653,822,217,270,269],"topic":[],"class_list":["post-105237","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-server","tag-11653","tag-mcu","tag-stm32","tag-270","tag-269"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>GPIO\u8f93\u51fa\u7535\u8def\u8be6\u89e3 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.wsisp.com\/helps\/105237.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"GPIO\u8f93\u51fa\u7535\u8def\u8be6\u89e3 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"og:description\" content=\"GPIO\u786c\u4ef6\u7535\u8def\u8be6\u89e3\u4e00\u3001GPIO\u7535\u8def\u56fe\u4e8c\u3001GPIO\u786c\u4ef6\u7535\u8def\u62c6\u52061. I\/O\u4fdd\u62a4\u7535\u8def1.1 IO\u4fdd\u62a4\u7535\u8def\u4e86\u89e31.2 IO\u4fdd\u62a4\u7535\u8def\u539f\u74062. \u8f93\u51fa\u7535\u8def:1.1 \u8f93\u51fa\u7535\u8def\u4e86\u89e31.2 \u8f93\u51fa\u7535\u8def\u7684\u539f\u74061.2.1 \u8f93\u51fa\u6570\u636e\u5bc4\u5b58\u56681.2.2 \u590d\u7528\u56681.2.3 \u8f93\u51fa\u63a7\u52361.2.4 P-MOS\u548cN-MOS\u4e09. \u8f93\u51fa\u6a21\u5f0f3.1 GPIO\u7684\u8f93\u51fa\u5de5\u4f5c\u6a21\u5f0f3.2 \u901a\u7528\u63a8\u633d\u8f93\u51fa (Push-Pull Output)3.3 \u901a\u7528\u5f00\u6f0f\u8f93\u51fa:3.3.1 \u4e0a\u62c9\u7535\u963b\u56db\u3001\u603b\u7ed3\u4e00\u3001GPIO\u7535\u8def\u56fe \u6211\u4eec\u4e86\u89e3\u5b8cGPIO\u7684\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.wsisp.com\/helps\/105237.html\" \/>\n<meta property=\"og:site_name\" content=\"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"article:published_time\" content=\"2026-09-14T17:57:00+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/09\/20260914175653-6aa83565156af.png\" \/>\n<meta name=\"author\" content=\"admin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"admin\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 \u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/105237.html\",\"url\":\"https:\/\/www.wsisp.com\/helps\/105237.html\",\"name\":\"GPIO\u8f93\u51fa\u7535\u8def\u8be6\u89e3 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\",\"isPartOf\":{\"@id\":\"https:\/\/www.wsisp.com\/helps\/#website\"},\"datePublished\":\"2026-09-14T17:57:00+00:00\",\"dateModified\":\"2026-09-14T17:57:00+00:00\",\"author\":{\"@id\":\"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/358e386c577a3ab51c4493330a20ad41\"},\"breadcrumb\":{\"@id\":\"https:\/\/www.wsisp.com\/helps\/105237.html#breadcrumb\"},\"inLanguage\":\"zh-Hans\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.wsisp.com\/helps\/105237.html\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/105237.html#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"\u9996\u9875\",\"item\":\"https:\/\/www.wsisp.com\/helps\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"GPIO\u8f93\u51fa\u7535\u8def\u8be6\u89e3\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/#website\",\"url\":\"https:\/\/www.wsisp.com\/helps\/\",\"name\":\"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\",\"description\":\"\u9999\u6e2f\u670d\u52a1\u5668_\u9999\u6e2f\u4e91\u670d\u52a1\u5668\u8d44\u8baf_\u670d\u52a1\u5668\u5e2e\u52a9\u6587\u6863_\u670d\u52a1\u5668\u6559\u7a0b\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.wsisp.com\/helps\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"zh-Hans\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/358e386c577a3ab51c4493330a20ad41\",\"name\":\"admin\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"zh-Hans\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/gravatar.wp-china-yes.net\/avatar\/?s=96&d=mystery\",\"contentUrl\":\"https:\/\/gravatar.wp-china-yes.net\/avatar\/?s=96&d=mystery\",\"caption\":\"admin\"},\"sameAs\":[\"http:\/\/wp.wsisp.com\"],\"url\":\"https:\/\/www.wsisp.com\/helps\/author\/admin\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"GPIO\u8f93\u51fa\u7535\u8def\u8be6\u89e3 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.wsisp.com\/helps\/105237.html","og_locale":"zh_CN","og_type":"article","og_title":"GPIO\u8f93\u51fa\u7535\u8def\u8be6\u89e3 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","og_description":"GPIO\u786c\u4ef6\u7535\u8def\u8be6\u89e3\u4e00\u3001GPIO\u7535\u8def\u56fe\u4e8c\u3001GPIO\u786c\u4ef6\u7535\u8def\u62c6\u52061. I\/O\u4fdd\u62a4\u7535\u8def1.1 IO\u4fdd\u62a4\u7535\u8def\u4e86\u89e31.2 IO\u4fdd\u62a4\u7535\u8def\u539f\u74062. \u8f93\u51fa\u7535\u8def:1.1 \u8f93\u51fa\u7535\u8def\u4e86\u89e31.2 \u8f93\u51fa\u7535\u8def\u7684\u539f\u74061.2.1 \u8f93\u51fa\u6570\u636e\u5bc4\u5b58\u56681.2.2 \u590d\u7528\u56681.2.3 \u8f93\u51fa\u63a7\u52361.2.4 P-MOS\u548cN-MOS\u4e09. \u8f93\u51fa\u6a21\u5f0f3.1 GPIO\u7684\u8f93\u51fa\u5de5\u4f5c\u6a21\u5f0f3.2 \u901a\u7528\u63a8\u633d\u8f93\u51fa (Push-Pull Output)3.3 \u901a\u7528\u5f00\u6f0f\u8f93\u51fa:3.3.1 \u4e0a\u62c9\u7535\u963b\u56db\u3001\u603b\u7ed3\u4e00\u3001GPIO\u7535\u8def\u56fe \u6211\u4eec\u4e86\u89e3\u5b8cGPIO\u7684","og_url":"https:\/\/www.wsisp.com\/helps\/105237.html","og_site_name":"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","article_published_time":"2026-09-14T17:57:00+00:00","og_image":[{"url":"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/09\/20260914175653-6aa83565156af.png"}],"author":"admin","twitter_card":"summary_large_image","twitter_misc":{"\u4f5c\u8005":"admin","\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4":"1 \u5206"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.wsisp.com\/helps\/105237.html","url":"https:\/\/www.wsisp.com\/helps\/105237.html","name":"GPIO\u8f93\u51fa\u7535\u8def\u8be6\u89e3 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","isPartOf":{"@id":"https:\/\/www.wsisp.com\/helps\/#website"},"datePublished":"2026-09-14T17:57:00+00:00","dateModified":"2026-09-14T17:57:00+00:00","author":{"@id":"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/358e386c577a3ab51c4493330a20ad41"},"breadcrumb":{"@id":"https:\/\/www.wsisp.com\/helps\/105237.html#breadcrumb"},"inLanguage":"zh-Hans","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.wsisp.com\/helps\/105237.html"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/www.wsisp.com\/helps\/105237.html#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"\u9996\u9875","item":"https:\/\/www.wsisp.com\/helps"},{"@type":"ListItem","position":2,"name":"GPIO\u8f93\u51fa\u7535\u8def\u8be6\u89e3"}]},{"@type":"WebSite","@id":"https:\/\/www.wsisp.com\/helps\/#website","url":"https:\/\/www.wsisp.com\/helps\/","name":"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","description":"\u9999\u6e2f\u670d\u52a1\u5668_\u9999\u6e2f\u4e91\u670d\u52a1\u5668\u8d44\u8baf_\u670d\u52a1\u5668\u5e2e\u52a9\u6587\u6863_\u670d\u52a1\u5668\u6559\u7a0b","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.wsisp.com\/helps\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"zh-Hans"},{"@type":"Person","@id":"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/358e386c577a3ab51c4493330a20ad41","name":"admin","image":{"@type":"ImageObject","inLanguage":"zh-Hans","@id":"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/image\/","url":"https:\/\/gravatar.wp-china-yes.net\/avatar\/?s=96&d=mystery","contentUrl":"https:\/\/gravatar.wp-china-yes.net\/avatar\/?s=96&d=mystery","caption":"admin"},"sameAs":["http:\/\/wp.wsisp.com"],"url":"https:\/\/www.wsisp.com\/helps\/author\/admin"}]}},"_links":{"self":[{"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/posts\/105237","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/comments?post=105237"}],"version-history":[{"count":0,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/posts\/105237\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/media\/105221"}],"wp:attachment":[{"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/media?parent=105237"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/categories?post=105237"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/tags?post=105237"},{"taxonomy":"topic","embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/topic?post=105237"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}