{"id":86787,"date":"2026-07-29T08:48:36","date_gmt":"2026-07-29T00:48:36","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/86787.html"},"modified":"2026-07-29T08:48:36","modified_gmt":"2026-07-29T00:48:36","slug":"stm32%e5%8d%95%e7%89%87%e6%9c%ba%e6%a0%87%e5%87%86%e5%ba%93-gpio%e7%82%b9%e7%81%af%e4%b8%8e%e6%8c%89%e9%94%ae%e8%be%93%e5%85%a5","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/86787.html","title":{"rendered":"STM32\u5355\u7247\u673a\u6807\u51c6\u5e93\u2014GPIO\u70b9\u706f\u4e0e\u6309\u952e\u8f93\u5165"},"content":{"rendered":"

\u70b9\u706f<\/h4>\n

\"\"<\/p>\n

\u5982\u4e0a\u56fe，\u7535\u6d41\u65b9\u5411\u90fd\u4e3a\u4ece\u53f3\u5411\u5de6，\u5373\u53f3\u8fb9\u7535\u538b\u9ad8\u4e8e\u5de6\u8fb9\u7535\u538b\u65f6\u7535\u8def\u5bfc\u901a，LED\u706f\u4eae\u3002\u6b64\u7535\u8def\u9700\u8981\u6ce8\u610f\u6700\u5927\u8fc7\u6d41\u4e0d\u80fd\u8d85\u8fc7LED\u548c\u7535\u963b\u7684\u6700\u5927\u8fc7\u6d41\u503c\u3002\u5047\u8bbeLED\u538b\u964d\u4e3a1.8V，\u6211\u4eec\u4f7f\u4ed6\u7684\u8fc7\u6d41\u4e0d\u8d85\u8fc75mA\u3002\u5373（\u9ad8\u538b-\u538b\u964d）\/5mA=\u6700\u5c0f\u963b\u503c\u3002（3.3V-1.8V）\/5mA=300R\u3002\u7535\u963b\u8981\u5927\u4e8e300R,\u9664\u975e\u7535\u8def\u9700\u8981，3.3V\u65f6\u4e00\u822c\u7535\u963b\u503c\u90fd\u4e3a1K\u6216\u800510K\u7b49\u3002<\/p>\n

0805\u5c01\u88c5LED\u7684\u8fc7\u6d41\u9608\u503c<\/h4>\n

\u5e38\u89c4\u5c0f\u529f\u73870805\u8d34\u7247LED\u7684\u989d\u5b9a\u5de5\u4f5c\u7535\u6d41\u4e3a20mA，\u200c\u8d85\u8fc725mA\u5c31\u5c5e\u4e8e\u8fc7\u6d41\u72b6\u6001\u200c，\u7edd\u5bf9\u6700\u5927\u7535\u6d41\u4e0d\u5efa\u8bae\u8d85\u8fc730mA\u3002
\n\u957f\u671f\u8fc7\u6d41\u4f1a\u5bfc\u81f4LED\u53d1\u70ed\u4e25\u91cd\u3001\u5149\u8870\u901f\u5ea6\u5927\u5e45\u52a0\u5feb，\u5bff\u547d\u6025\u5267\u7f29\u77ed；\u77ed\u65f6\u95f4\u77ac\u65f6\u8fc7\u6d41\u53ef\u627f\u53d7100mA\u5de6\u53f3（\u6301\u7eed\u65f6\u95f4\u9700\u63a7\u5236\u57280.1ms\u4ee5\u5185），\u4f46\u4e0d\u5efa\u8bae\u5e38\u89c4\u8bbe\u8ba1\u4e2d\u4f7f\u7528\u8be5\u53c2\u6570\u3002\u65e5\u5e38\u505aSTM32\u8fd9\u7c7bMCU\u7684\u6307\u793a\u706f\u9a71\u52a8\u65f6，\u901a\u5e38\u5c06\u5de5\u4f5c\u7535\u6d41\u63a7\u5236\u57285~10mA\u5c31\u53ef\u4ee5\u83b7\u5f97\u8db3\u591f\u7684\u4eae\u5ea6，\u65e2\u5b89\u5168\u53c8\u80fd\u964d\u4f4eIO\u53e3\u7684\u8d1f\u8f7d\u538b\u529b\u3002<\/p>\n

0805\u5c01\u88c5LED\u7684\u6b63\u5411\u538b\u964d<\/h4>\n

\u538b\u964d\u6570\u503c\u968f\u53d1\u5149\u989c\u8272\u4e0d\u540c\u6709\u660e\u663e\u533a\u5206，\u5e38\u89c4\u53c2\u6570\u8303\u56f4\u5982\u4e0b：
\n\u7ea2\u3001\u9ec4\u3001\u6a59\u8272\u7cfb：\u6b63\u5411\u538b\u964d1.8V~2.2V，\u5178\u578b\u503c\u7ea62.0V
\n\u84dd\u3001\u7eff\u3001\u767d\u3001\u7d2b\u8272\u7cfb：\u6b63\u5411\u538b\u964d2.8V~3.6V，\u5178\u578b\u503c\u7ea63.0V
\n\u53cc\u8272\/\u5168\u5f69\u76840805LED\u5219\u4f1a\u5bf9\u5e94\u4e0d\u540c\u989c\u8272\u7684\u4e24\u8def\u538b\u964d\u53c2\u6570，\u6bd4\u5982\u7ea2\u7eff\u53cc\u8272\u7684\u7ea2\u5149\u901a\u9053\u538b\u964d2.0~2.2V\u3001\u7eff\u5149\u901a\u9053\u538b\u964d3.0~3.2V\u3002<\/p>\n

\u6700\u5e38\u89c1\u76840805\u7535\u963b，\u6807\u51c6\u989d\u5b9a\u529f\u7387\u4e3a \u200c1\/8W（0.125W）<\/p>\n<\/p>\n

\u7a0b\u5e8f\u4e3e\u4f8b<\/h4>\n

\/\/\u7ba1\u811a\u521d\u59cb\u5316
\nvoid LED_GPIO_Config(void)
\n{
\n \/*\u5b9a\u4e49\u4e00\u4e2aGPIO_InitTypeDef\u7c7b\u578b\u7684\u7ed3\u6784\u4f53*\/
\n GPIO_InitTypeDef GPIO_InitStructure;<\/p>\n

\/*\u5f00\u542fGPIOA\u7684\u65f6\u949f，\u56e0\u4e3aPA0\u5c5e\u4e8eGPIOA\u7aef\u53e3*\/
\n RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE); <\/p>\n

\/*\u9009\u62e9\u8981\u63a7\u5236\u7684GPIO\u5f15\u811a\u4e3aPA0*\/
\n GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0; <\/p>\n

\/*\u8bbe\u7f6e\u5f15\u811a\u6a21\u5f0f\u4e3a\u901a\u7528\u63a8\u633d\u8f93\u51fa*\/
\n GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP; <\/p>\n

\/*\u8bbe\u7f6e\u5f15\u811a\u901f\u7387\u4e3a50MHz *\/
\n GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; <\/p>\n

\/*\u8c03\u7528\u5e93\u51fd\u6570，\u521d\u59cb\u5316GPIOA\u7684PA0\u5f15\u811a*\/
\n GPIO_Init(GPIOA, &GPIO_InitStructure); <\/p>\n

\/\/\u521d\u59cb\u5316\u65f6\u5173\u706f
\n \/* \u5173\u95edPA0\u5bf9\u5e94\u7684LED\u706f，\u5c06\u5176\u7535\u5e73\u8bbe\u7f6e\u4e3a\u9ad8\u7535\u5e73，\u5047\u8bbe\u9ad8\u7535\u5e73\u706d\u706f *\/
\n GPIO_SetBits(GPIOA, GPIO_Pin_0);
\n}<\/p>\n

\/* \u5c06\u5176\u7535\u5e73\u8bbe\u7f6e\u4e3a\u9ad8\u7535\u5e73*\/
\n GPIO_SetBits(GPIOA, GPIO_Pin_0);
\n \/* \u5c06\u5176\u7535\u5e73\u8bbe\u7f6e\u4e3a\u4f4e\u7535\u5e73*\/
\n GPIO_SetBits(GPIOA, GPIO_Pin_0);<\/p>\n

\u7ba1\u811a\u8f93\u51fa\u63a7\u5236\u706f\u7684\u4eae\u706d\u8ddf\u5b9e\u9645\u7535\u8def\u6709\u5173\u3002<\/p>\n

\u6309\u952e\u8f93\u5165<\/h4>\n

\"\"<\/p>\n

\u5982\u4e0a\u56fe，IO\u63a510K\u7535\u963b\u7136\u540e\u63a5\u6309\u952e，\u6309\u952e\u53e6\u4e00\u7aef\u5206\u522b\u662f3.3V\u4e0eGND，\u6309\u952e\u8f93\u5165\u5176\u5b9e\u5c31\u662f\u68c0\u6d4b\u6309\u952e\u63a5\u6536\u5230\u7684\u9ad8\u538b\u6216\u8005\u4f4e\u538b\u300210K\u7535\u963b\u7528\u4e8e\u9650\u6d41，\u9632\u6b62\u70e7\u574f\u82af\u7247\u3002<\/p>\n

\u7a0b\u5e8f\u4e3e\u4f8b<\/h4>\n

\/\/\u521d\u59cb\u5316\u7ba1\u811a
\nvoid Key_GPIO_Config(void)
\n{
\n GPIO_InitTypeDef GPIO_InitStructure;<\/p>\n

\/*\u5f00\u542f\u6309\u952e\u7aef\u53e3\u7684\u65f6\u949f*\/
\n RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE);<\/p>\n

\/\/\u9009\u62e9\u6309\u952e\u7684\u5f15\u811a\u4e3aPA0
\n GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0;
\n \/\/ \u8bbe\u7f6e\u6309\u952e\u7684\u5f15\u811a\u4e3a\u6d6e\u7a7a\u8f93\u5165
\n GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
\n \/\/\u4f7f\u7528\u7ed3\u6784\u4f53\u521d\u59cb\u5316\u6309\u952e
\n GPIO_Init(GPIOA, &GPIO_InitStructure);
\n}<\/p>\n

\/*\u68c0\u6d4b\u662f\u5426\u6709\u6309\u952e\u6309\u4e0b *\/
\nif(GPIO_ReadInputDataBit(GPIOA,GPIO_Pin_0) == 1)
\n{
\n }
\n if(GPIO_ReadInputDataBit(GPIOA,GPIO_Pin_0) == 0)
\n{
\n }<\/p>\n

GPIO_ReadInputDataBit\u51fd\u6570\u8bfb\u53d6\u5355\u4e2aGPIO\u5f15\u811a\u8f93\u5165\u7535\u5e73\u72b6\u6001\u7684\u6838\u5fc3\u5e93\u51fd\u6570<\/p>\n

\u8fd4\u56de\u503c\u5bf9\u5e94\u5b8f\u503c1，\u8868\u793a\u5f15\u811a\u5f53\u524d\u8f93\u5165\u4e3a\u9ad8\u7535\u5e73<\/p>\n

\u8fd4\u56de\u503c\u5bf9\u5e94\u5b8f\u503c0，\u8868\u793a\u5f15\u811a\u5f53\u524d\u8f93\u5165\u4e3a\u4f4e\u7535\u5e73<\/p>\n

\u6839\u636e\u6309\u952e\u6309\u4e0b\u65f6\u8f93\u5165\u7684\u72b6\u6001\u6765\u5224\u65ad\u6309\u952e\u662f\u5426\u6309\u4e0b\u3002<\/p><\/p>\n","protected":false},"excerpt":{"rendered":"

\u70b9\u706f\u5982\u4e0a\u56fe，\u7535\u6d41\u65b9\u5411\u90fd\u4e3a\u4ece\u53f3\u5411\u5de6，\u5373\u53f3\u8fb9\u7535\u538b\u9ad8\u4e8e\u5de6\u8fb9\u7535\u538b\u65f6\u7535\u8def\u5bfc\u901a，LED\u706f\u4eae\u3002\u6b64\u7535\u8def\u9700\u8981\u6ce8\u610f\u6700\u5927\u8fc7\u6d41\u4e0d\u80fd\u8d85\u8fc7LED\u548c\u7535\u963b\u7684\u6700\u5927\u8fc7\u6d41\u503c\u3002\u5047\u8bbeLED\u538b\u964d\u4e3a1.8V，\u6211\u4eec\u4f7f\u4ed6\u7684\u8fc7\u6d41\u4e0d\u8d85\u8fc75mA\u3002\u5373（\u9ad8\u538b-\u538b\u964d）\/5mA\u6700\u5c0f\u963b\u503c\u3002（3.3V-1.8V）\/5mA300R\u3002\u7535\u963b\u8981\u5927\u4e8e300R,\u9664\u975e\u7535\u8def\u9700\u8981，3.3V\u65f6\u4e00\u822c\u7535\u963b\u503c\u90fd\u4e3a1K\u6216\u800510K\u7b49\u30020805\u5c01\u88c5L<\/p>\n","protected":false},"author":2,"featured_media":86785,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[174,217,270],"topic":[],"class_list":["post-86787","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-server","tag-c","tag-stm32","tag-270"],"yoast_head":"\nSTM32\u5355\u7247\u673a\u6807\u51c6\u5e93\u2014GPIO\u70b9\u706f\u4e0e\u6309\u952e\u8f93\u5165 - 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