{"id":10021210,"date":"2026-01-26T10:53:28","date_gmt":"2026-01-26T02:53:28","guid":{"rendered":"https:\/\/itmax.cn\/?p=10021210"},"modified":"2026-01-26T10:53:28","modified_gmt":"2026-01-26T02:53:28","slug":"gpio%e7%9a%84%e5%85%ab%e7%a7%8d%e5%b7%a5%e4%bd%9c%e6%a8%a1%e5%bc%8f","status":"publish","type":"post","link":"https:\/\/itmax.cn\/?p=10021210","title":{"rendered":"GPIO\u7684\u516b\u79cd\u5de5\u4f5c\u6a21\u5f0f"},"content":{"rendered":"<p>\u5927\u5bb6\u597d\uff0c\u6211\u662f\u826f\u8bb8\u3002<\/p>\n<p>\u5728\u5d4c\u5165\u5f0f\u5f00\u53d1\u4e2d\uff0cGPIO\uff08General Purpose Input\/Output\uff0c\u901a\u7528\u8f93\u5165\u8f93\u51fa\uff09\u662f\u6211\u4eec\u63a5\u89e6\u6700\u591a\u7684\u5916\u8bbe\u4e4b\u4e00\u3002<\/p>\n<p>\u65e0\u8bba\u662f\u70b9\u4eae\u4e00\u4e2aLED\u706f\uff0c\u8fd8\u662f\u8bfb\u53d6\u6309\u952e\u72b6\u6001\uff0c\u4ea6\u6216\u662f\u4e0e\u5176\u4ed6\u82af\u7247\u8fdb\u884c\u901a\u4fe1\uff0c\u90fd\u79bb\u4e0d\u5f00GPIO\u7684\u914d\u7f6e\u3002<\/p>\n<p>\u800cGPIO\u7684\u5de5\u4f5c\u6a21\u5f0f\u76f4\u63a5\u51b3\u5b9a\u4e86\u5f15\u811a\u7684\u7535\u6c14\u7279\u6027\u548c\u529f\u80fd\u8868\u73b0\u3002<\/p>\n<p>\u4eca\u5929\uff0c\u6211\u5c31\u6765\u8be6\u7ec6\u804a\u804aSTM32\u4e2dGPIO\u7684\u516b\u79cd\u5de5\u4f5c\u6a21\u5f0f\uff0c\u5e2e\u52a9\u5927\u5bb6\u5f7b\u5e95\u7406\u89e3\u5b83\u4eec\u7684\u533a\u522b\u548c\u5e94\u7528\u573a\u666f\u3002<\/p>\n<h2>1. GPIO\u5de5\u4f5c\u6a21\u5f0f\u6982\u8ff0<\/h2>\n<p>STM32\u7684GPIO\u5177\u6709\u516b\u79cd\u5de5\u4f5c\u6a21\u5f0f\uff0c\u53ef\u4ee5\u5206\u4e3a\u56db\u79cd\u8f93\u5165\u6a21\u5f0f\u548c\u56db\u79cd\u8f93\u51fa\u6a21\u5f0f\u3002<\/p>\n<p>\u8fd9\u4e9b\u6a21\u5f0f\u7684\u8bbe\u8ba1\u975e\u5e38\u7075\u6d3b\uff0c\u80fd\u591f\u6ee1\u8db3\u5404\u79cd\u5e94\u7528\u573a\u666f\u7684\u9700\u6c42\u3002<\/p>\n<p><strong>\u56db\u79cd\u8f93\u5165\u6a21\u5f0f\uff1a<\/strong><br \/>1.1 \u8f93\u5165\u6d6e\u7a7a\u6a21\u5f0f\uff08GPIO_MODE_INPUT\uff09<br \/>1.2 \u8f93\u5165\u4e0a\u62c9\u6a21\u5f0f\uff08GPIO_MODE_INPUT\uff0c\u914d\u5408GPIO_PULLUP\uff09<br \/>1.3 \u8f93\u5165\u4e0b\u62c9\u6a21\u5f0f\uff08GPIO_MODE_INPUT\uff0c\u914d\u5408GPIO_PULLDOWN\uff09<br \/>1.4 \u6a21\u62df\u8f93\u5165\u6a21\u5f0f\uff08GPIO_MODE_ANALOG\uff09<\/p>\n<p><strong>\u56db\u79cd\u8f93\u51fa\u6a21\u5f0f\uff1a<\/strong><br \/>1.5 \u5f00\u6f0f\u8f93\u51fa\u6a21\u5f0f\uff08GPIO_MODE_OUTPUT_OD\uff09<br \/>1.6 \u5f00\u6f0f\u590d\u7528\u8f93\u51fa\u6a21\u5f0f\uff08GPIO_MODE_AF_OD\uff09<br \/>1.7 \u63a8\u633d\u8f93\u51fa\u6a21\u5f0f\uff08GPIO_MODE_OUTPUT_PP\uff09<br \/>1.8 \u63a8\u633d\u590d\u7528\u8f93\u51fa\u6a21\u5f0f\uff08GPIO_MODE_AF_PP\uff09<\/p>\n<p>\u4e0b\u9762\u6211\u5c06\u9010\u4e00\u8be6\u7ec6\u4ecb\u7ecd\u8fd9\u516b\u79cd\u6a21\u5f0f\u7684\u5de5\u4f5c\u539f\u7406\u3001\u7279\u70b9\u4ee5\u53ca\u5178\u578b\u5e94\u7528\u573a\u666f\u3002<\/p>\n<h2>2. \u56db\u79cd\u8f93\u5165\u6a21\u5f0f\u8be6\u89e3<\/h2>\n<h3>2.1 \u8f93\u5165\u6d6e\u7a7a\u6a21\u5f0f<\/h3>\n<p>\u8f93\u5165\u6d6e\u7a7a\u6a21\u5f0f\u662fGPIO\u6700\u57fa\u672c\u7684\u8f93\u5165\u6a21\u5f0f\u3002<\/p>\n<p>\u5728\u8fd9\u79cd\u6a21\u5f0f\u4e0b\uff0c\u5f15\u811a\u65e2\u4e0d\u63a5\u4e0a\u62c9\u7535\u963b\uff0c\u4e5f\u4e0d\u63a5\u4e0b\u62c9\u7535\u963b\uff0c\u5b8c\u5168\u5904\u4e8e&#8221;\u6d6e\u7a7a&#8221;\u72b6\u6001\u3002<\/p>\n<p>\u6b64\u65f6\u5f15\u811a\u7684\u7535\u5e73\u5b8c\u5168\u7531\u5916\u90e8\u7535\u8def\u51b3\u5b9a\uff0c\u5982\u679c\u5916\u90e8\u6ca1\u6709\u660e\u786e\u7684\u9ad8\u4f4e\u7535\u5e73\u4fe1\u53f7\uff0c\u5f15\u811a\u7684\u72b6\u6001\u662f\u4e0d\u786e\u5b9a\u7684\uff0c\u53ef\u80fd\u4f1a\u53d7\u5230\u5916\u90e8\u5e72\u6270\u800c\u4ea7\u751f\u968f\u673a\u7684\u9ad8\u4f4e\u7535\u5e73\u8df3\u53d8\u3002<\/p>\n<p><strong>\u7279\u70b9\uff1a<\/strong><\/p>\n<ul>\n<li>\u5f15\u811a\u5185\u90e8\u4e0d\u63a5\u4efb\u4f55\u7535\u963b<\/li>\n<li>\u8f93\u5165\u963b\u6297\u975e\u5e38\u9ad8<\/li>\n<li>\u529f\u8017\u6700\u4f4e<\/li>\n<li>\u5bb9\u6613\u53d7\u5230\u5916\u90e8\u5e72\u6270<\/li>\n<\/ul>\n<p><strong>\u5e94\u7528\u573a\u666f\uff1a<\/strong><br \/>\u8f93\u5165\u6d6e\u7a7a\u6a21\u5f0f\u901a\u5e38\u7528\u4e8e\u5916\u90e8\u7535\u8def\u5df2\u7ecf\u63d0\u4f9b\u4e86\u660e\u786e\u7684\u4e0a\u62c9\u6216\u4e0b\u62c9\u7535\u963b\u7684\u573a\u5408\u3002<\/p>\n<p>\u6bd4\u5982\uff0c\u5f53\u5916\u90e8\u6309\u952e\u7535\u8def\u5df2\u7ecf\u6709\u4e0a\u62c9\u7535\u963b\u65f6\uff0cMCU\u7684GPIO\u5c31\u53ef\u4ee5\u914d\u7f6e\u4e3a\u6d6e\u7a7a\u8f93\u5165\uff0c\u907f\u514d\u5185\u90e8\u4e0a\u62c9\u7535\u963b\u4e0e\u5916\u90e8\u7535\u963b\u5f62\u6210\u5206\u538b\u3002<\/p>\n<p><strong>\u4ee3\u7801\u793a\u4f8b\uff1a<\/strong><\/p>\n<pre><code class=\"c\">GPIO_InitTypeDef GPIO_InitStruct = {0};\n\n\/\/ \u4f7f\u80fdGPIOA\u65f6\u949f\n__HAL_RCC_GPIOA_CLK_ENABLE();\n\n\/\/ \u914d\u7f6ePA0\u4e3a\u6d6e\u7a7a\u8f93\u5165\nGPIO_InitStruct.Pin = GPIO_PIN_0;\nGPIO_InitStruct.Mode = GPIO_MODE_INPUT;\nGPIO_InitStruct.Pull = GPIO_NOPULL;\nHAL_GPIO_Init(GPIOA, &amp;GPIO_InitStruct);\n\n\/\/ \u8bfb\u53d6\u5f15\u811a\u72b6\u6001\nGPIO_PinState pinState = HAL_GPIO_ReadPin(GPIOA, GPIO_PIN_0);<\/code><\/pre>\n<h3>2.2 \u8f93\u5165\u4e0a\u62c9\u6a21\u5f0f<\/h3>\n<p>\u8f93\u5165\u4e0a\u62c9\u6a21\u5f0f\u662f\u5728\u6d6e\u7a7a\u8f93\u5165\u7684\u57fa\u7840\u4e0a\uff0c\u5185\u90e8\u8fde\u63a5\u4e86\u4e00\u4e2a\u4e0a\u62c9\u7535\u963b\uff08\u901a\u5e38\u4e3a30~50k\u03a9\uff09\u5230VDD\u3002<\/p>\n<p>\u8fd9\u6837\uff0c\u5f53\u5916\u90e8\u6ca1\u6709\u4fe1\u53f7\u8f93\u5165\u65f6\uff0c\u5f15\u811a\u4f1a\u88ab\u4e0a\u62c9\u7535\u963b\u62c9\u5230\u9ad8\u7535\u5e73\u72b6\u6001\uff0c\u907f\u514d\u4e86\u6d6e\u7a7a\u72b6\u6001\u4e0b\u7684\u4e0d\u786e\u5b9a\u6027\u3002<\/p>\n<p><strong>\u7279\u70b9\uff1a<\/strong><\/p>\n<ul>\n<li>\u5185\u90e8\u8fde\u63a5\u4e0a\u62c9\u7535\u963b\u5230VDD<\/li>\n<li>\u9ed8\u8ba4\u72b6\u6001\u4e3a\u9ad8\u7535\u5e73<\/li>\n<li>\u53ef\u4ee5\u6709\u6548\u9632\u6b62\u5f15\u811a\u60ac\u7a7a<\/li>\n<li>\u9002\u5408\u4f4e\u7535\u5e73\u6709\u6548\u7684\u8f93\u5165\u4fe1\u53f7<\/li>\n<\/ul>\n<p><strong>\u5e94\u7528\u573a\u666f\uff1a<\/strong><br \/>\u8f93\u5165\u4e0a\u62c9\u6a21\u5f0f\u6700\u5e38\u7528\u4e8e\u6309\u952e\u68c0\u6d4b\u3002<\/p>\n<p>\u5f53\u6309\u952e\u672a\u6309\u4e0b\u65f6\uff0c\u5f15\u811a\u4fdd\u6301\u9ad8\u7535\u5e73\uff1b\u6309\u952e\u6309\u4e0b\u540e\uff0c\u5f15\u811a\u88ab\u62c9\u5230\u5730\uff0c\u53d8\u4e3a\u4f4e\u7535\u5e73\u3002<\/p>\n<p>\u8fd9\u79cd\u65b9\u5f0f\u7b80\u5355\u53ef\u9760\uff0c\u662f\u6309\u952e\u68c0\u6d4b\u7684\u6807\u51c6\u914d\u7f6e\u3002<\/p>\n<p><strong>\u4ee3\u7801\u793a\u4f8b\uff1a<\/strong><\/p>\n<pre><code class=\"c\">GPIO_InitTypeDef GPIO_InitStruct = {0};\n\n__HAL_RCC_GPIOA_CLK_ENABLE();\n\n\/\/ \u914d\u7f6ePA1\u4e3a\u4e0a\u62c9\u8f93\u5165\uff0c\u7528\u4e8e\u6309\u952e\u68c0\u6d4b\nGPIO_InitStruct.Pin = GPIO_PIN_1;\nGPIO_InitStruct.Mode = GPIO_MODE_INPUT;\nGPIO_InitStruct.Pull = GPIO_PULLUP;\nHAL_GPIO_Init(GPIOA, &amp;GPIO_InitStruct);\n\n\/\/ \u68c0\u6d4b\u6309\u952e\u662f\u5426\u6309\u4e0b\uff08\u4f4e\u7535\u5e73\u6709\u6548\uff09\nif (HAL_GPIO_ReadPin(GPIOA, GPIO_PIN_1) == GPIO_PIN_RESET) {\n    \/\/ \u6309\u952e\u88ab\u6309\u4e0b\n    \/\/ \u6267\u884c\u76f8\u5e94\u64cd\u4f5c\n}<\/code><\/pre>\n<h3>2.3 \u8f93\u5165\u4e0b\u62c9\u6a21\u5f0f<\/h3>\n<p>\u8f93\u5165\u4e0b\u62c9\u6a21\u5f0f\u4e0e\u4e0a\u62c9\u6a21\u5f0f\u76f8\u53cd\uff0c\u5185\u90e8\u8fde\u63a5\u4e86\u4e00\u4e2a\u4e0b\u62c9\u7535\u963b\uff08\u540c\u6837\u662f30~50k\u03a9\uff09\u5230GND\u3002<\/p>\n<p>\u5f53\u5916\u90e8\u6ca1\u6709\u4fe1\u53f7\u8f93\u5165\u65f6\uff0c\u5f15\u811a\u4f1a\u88ab\u4e0b\u62c9\u7535\u963b\u62c9\u5230\u4f4e\u7535\u5e73\u72b6\u6001\u3002<\/p>\n<p><strong>\u7279\u70b9\uff1a<\/strong><\/p>\n<ul>\n<li>\u5185\u90e8\u8fde\u63a5\u4e0b\u62c9\u7535\u963b\u5230GND<\/li>\n<li>\u9ed8\u8ba4\u72b6\u6001\u4e3a\u4f4e\u7535\u5e73<\/li>\n<li>\u9632\u6b62\u5f15\u811a\u60ac\u7a7a<\/li>\n<li>\u9002\u5408\u9ad8\u7535\u5e73\u6709\u6548\u7684\u8f93\u5165\u4fe1\u53f7<\/li>\n<\/ul>\n<p><strong>\u5e94\u7528\u573a\u666f\uff1a<\/strong><br \/>\u8f93\u5165\u4e0b\u62c9\u6a21\u5f0f\u9002\u7528\u4e8e\u9ad8\u7535\u5e73\u6709\u6548\u7684\u4fe1\u53f7\u68c0\u6d4b\u3002<\/p>\n<p>\u6bd4\u5982\u67d0\u4e9b\u4f20\u611f\u5668\u8f93\u51fa\u9ad8\u7535\u5e73\u8868\u793a\u6709\u6548\u4fe1\u53f7\uff0c\u6b64\u65f6\u53ef\u4ee5\u5c06GPIO\u914d\u7f6e\u4e3a\u4e0b\u62c9\u8f93\u5165\uff0c\u786e\u4fdd\u5728\u6ca1\u6709\u4fe1\u53f7\u65f6\u5f15\u811a\u4fdd\u6301\u4f4e\u7535\u5e73\u3002<\/p>\n<p><strong>\u4ee3\u7801\u793a\u4f8b\uff1a<\/strong><\/p>\n<pre><code class=\"c\">GPIO_InitTypeDef GPIO_InitStruct = {0};\n\n__HAL_RCC_GPIOB_CLK_ENABLE();\n\n\/\/ \u914d\u7f6ePB0\u4e3a\u4e0b\u62c9\u8f93\u5165\nGPIO_InitStruct.Pin = GPIO_PIN_0;\nGPIO_InitStruct.Mode = GPIO_MODE_INPUT;\nGPIO_InitStruct.Pull = GPIO_PULLDOWN;\nHAL_GPIO_Init(GPIOB, &amp;GPIO_InitStruct);\n\n\/\/ \u68c0\u6d4b\u9ad8\u7535\u5e73\u6709\u6548\u4fe1\u53f7\nif (HAL_GPIO_ReadPin(GPIOB, GPIO_PIN_0) == GPIO_PIN_SET) {\n    \/\/ \u68c0\u6d4b\u5230\u9ad8\u7535\u5e73\u4fe1\u53f7\n    \/\/ \u6267\u884c\u76f8\u5e94\u64cd\u4f5c\n}<\/code><\/pre>\n<h3>2.4 \u6a21\u62df\u8f93\u5165\u6a21\u5f0f<\/h3>\n<p>\u6a21\u62df\u8f93\u5165\u6a21\u5f0f\u662f\u4e13\u95e8\u4e3aADC\uff08\u6a21\u6570\u8f6c\u6362\u5668\uff09\u8bbe\u8ba1\u7684\u3002<\/p>\n<p>\u5728\u8fd9\u79cd\u6a21\u5f0f\u4e0b\uff0cGPIO\u5f15\u811a\u76f4\u63a5\u8fde\u63a5\u5230ADC\u7684\u8f93\u5165\u901a\u9053\uff0c\u4e0d\u7ecf\u8fc7\u65bd\u5bc6\u7279\u89e6\u53d1\u5668\uff0c\u53ef\u4ee5\u8f93\u5165\u8fde\u7eed\u53d8\u5316\u7684\u6a21\u62df\u4fe1\u53f7\u3002<\/p>\n<p><strong>\u7279\u70b9\uff1a<\/strong><\/p>\n<ul>\n<li>\u5173\u95ed\u6570\u5b57\u8f93\u5165\u529f\u80fd<\/li>\n<li>\u5173\u95ed\u4e0a\u62c9\u4e0b\u62c9\u7535\u963b<\/li>\n<li>\u4fe1\u53f7\u76f4\u63a5\u8fdb\u5165ADC<\/li>\n<li>\u529f\u8017\u6700\u4f4e<\/li>\n<\/ul>\n<p><strong>\u5e94\u7528\u573a\u666f\uff1a<\/strong><br \/>\u6a21\u62df\u8f93\u5165\u6a21\u5f0f\u4e13\u95e8\u7528\u4e8eADC\u91c7\u96c6\u6a21\u62df\u4fe1\u53f7\uff0c\u6bd4\u5982\u8bfb\u53d6\u6e29\u5ea6\u4f20\u611f\u5668\u3001\u5149\u654f\u7535\u963b\u3001\u7535\u4f4d\u5668\u7b49\u6a21\u62df\u91cf\u3002<\/p>\n<p>\u5728\u8fd9\u79cd\u6a21\u5f0f\u4e0b\uff0cGPIO\u4e0d\u518d\u4f5c\u4e3a\u6570\u5b57IO\u4f7f\u7528\uff0c\u800c\u662f\u4f5c\u4e3aADC\u7684\u6a21\u62df\u8f93\u5165\u901a\u9053\u3002<\/p>\n<p><strong>\u4ee3\u7801\u793a\u4f8b\uff1a<\/strong><\/p>\n<pre><code class=\"c\">GPIO_InitTypeDef GPIO_InitStruct = {0};\nADC_HandleTypeDef hadc1;\n\n__HAL_RCC_GPIOA_CLK_ENABLE();\n__HAL_RCC_ADC1_CLK_ENABLE();\n\n\/\/ \u914d\u7f6ePA4\u4e3a\u6a21\u62df\u8f93\u5165\uff0c\u7528\u4e8eADC\nGPIO_InitStruct.Pin = GPIO_PIN_4;\nGPIO_InitStruct.Mode = GPIO_MODE_ANALOG;\nGPIO_InitStruct.Pull = GPIO_NOPULL;\nHAL_GPIO_Init(GPIOA, &amp;GPIO_InitStruct);\n\n\/\/ ADC\u914d\u7f6e\uff08\u7b80\u5316\u793a\u4f8b\uff09\nhadc1.Instance = ADC1;\nhadc1.Init.Resolution = ADC_RESOLUTION_12B;\nhadc1.Init.DataAlign = ADC_DATAALIGN_RIGHT;\nHAL_ADC_Init(&amp;hadc1);\n\n\/\/ \u8bfb\u53d6ADC\u503c\nHAL_ADC_Start(&amp;hadc1);\nHAL_ADC_PollForConversion(&amp;hadc1, 100);\nuint32_t adcValue = HAL_ADC_GetValue(&amp;hadc1);<\/code><\/pre>\n<h2>3. \u56db\u79cd\u8f93\u51fa\u6a21\u5f0f\u8be6\u89e3<\/h2>\n<h3>3.1 \u63a8\u633d\u8f93\u51fa\u6a21\u5f0f<\/h3>\n<p>\u63a8\u633d\u8f93\u51fa\uff08Push-Pull\uff09\u662f\u6700\u5e38\u7528\u7684\u8f93\u51fa\u6a21\u5f0f\u3002<\/p>\n<p>\u5728\u8fd9\u79cd\u6a21\u5f0f\u4e0b\uff0c\u8f93\u51fa\u7ea7\u7531\u4e24\u4e2aMOS\u7ba1\u7ec4\u6210\uff0c\u4e00\u4e2a\u8fde\u63a5VDD\uff08P-MOS\uff09\uff0c\u4e00\u4e2a\u8fde\u63a5GND\uff08N-MOS\uff09\u3002<\/p>\n<p>\u8f93\u51fa\u9ad8\u7535\u5e73\u65f6\uff0cP-MOS\u5bfc\u901a\uff0c\u5f15\u811a\u8fde\u63a5\u5230VDD\uff1b\u8f93\u51fa\u4f4e\u7535\u5e73\u65f6\uff0cN-MOS\u5bfc\u901a\uff0c\u5f15\u811a\u8fde\u63a5\u5230GND\u3002<\/p>\n<p>\u8fd9\u79cd\u7ed3\u6784\u53ef\u4ee5\u63d0\u4f9b\u8f83\u5f3a\u7684\u9a71\u52a8\u80fd\u529b\u3002<\/p>\n<p><strong>\u7279\u70b9\uff1a<\/strong><\/p>\n<ul>\n<li>\u53ef\u4ee5\u8f93\u51fa\u9ad8\u7535\u5e73\u548c\u4f4e\u7535\u5e73<\/li>\n<li>\u9a71\u52a8\u80fd\u529b\u5f3a\uff0c\u53ef\u4ee5\u76f4\u63a5\u9a71\u52a8LED\u7b49\u8d1f\u8f7d<\/li>\n<li>\u8f93\u51fa\u7535\u5e73\u660e\u786e\uff0c\u4e0d\u4f1a\u51fa\u73b0\u60ac\u7a7a\u72b6\u6001<\/li>\n<li>\u4e0d\u80fd\u5b9e\u73b0\u7ebf\u4e0e\u529f\u80fd<\/li>\n<\/ul>\n<p><strong>\u5e94\u7528\u573a\u666f\uff1a<\/strong><br \/>\u63a8\u633d\u8f93\u51fa\u662fGPIO\u6700\u5e38\u7528\u7684\u8f93\u51fa\u6a21\u5f0f\uff0c\u9002\u7528\u4e8e\u9a71\u52a8LED\u3001\u63a7\u5236\u7ee7\u7535\u5668\u3001\u8f93\u51faPWM\u4fe1\u53f7\u7b49\u573a\u666f\u3002<\/p>\n<p>\u53ea\u8981\u4e0d\u9700\u8981\u591a\u4e2a\u8bbe\u5907\u5171\u4eab\u540c\u4e00\u6761\u4fe1\u53f7\u7ebf\uff0c\u63a8\u633d\u8f93\u51fa\u90fd\u662f\u9996\u9009\u3002<\/p>\n<p><strong>\u4ee3\u7801\u793a\u4f8b\uff1a<\/strong><\/p>\n<pre><code class=\"c\">GPIO_InitTypeDef GPIO_InitStruct = {0};\n\n__HAL_RCC_GPIOC_CLK_ENABLE();\n\n\/\/ \u914d\u7f6ePC13\u4e3a\u63a8\u633d\u8f93\u51fa\uff0c\u7528\u4e8e\u63a7\u5236LED\nGPIO_InitStruct.Pin = GPIO_PIN_13;\nGPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;\nGPIO_InitStruct.Pull = GPIO_NOPULL;\nGPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;\nHAL_GPIO_Init(GPIOC, &amp;GPIO_InitStruct);\n\n\/\/ \u70b9\u4eaeLED\uff08\u5047\u8bbe\u4f4e\u7535\u5e73\u70b9\u4eae\uff09\nHAL_GPIO_WritePin(GPIOC, GPIO_PIN_13, GPIO_PIN_RESET);\n\n\/\/ \u5ef6\u65f6\nHAL_Delay(1000);\n\n\/\/ \u7184\u706dLED\nHAL_GPIO_WritePin(GPIOC, GPIO_PIN_13, GPIO_PIN_SET);<\/code><\/pre>\n<h3>3.2 \u5f00\u6f0f\u8f93\u51fa\u6a21\u5f0f<\/h3>\n<p>\u5f00\u6f0f\u8f93\u51fa\uff08Open-Drain\uff09\u6a21\u5f0f\u4e0b\uff0c\u8f93\u51fa\u7ea7\u53ea\u6709\u4e00\u4e2aN-MOS\u7ba1\u8fde\u63a5\u5230GND\u3002<\/p>\n<p>\u8f93\u51fa\u4f4e\u7535\u5e73\u65f6\uff0cN-MOS\u5bfc\u901a\uff0c\u5f15\u811a\u63a5\u5730\uff1b\u8f93\u51fa\u9ad8\u7535\u5e73\u65f6\uff0cN-MOS\u5173\u65ad\uff0c\u5f15\u811a\u5448\u73b0\u9ad8\u963b\u6001\u3002<\/p>\n<p>\u8981\u8f93\u51fa\u9ad8\u7535\u5e73\uff0c\u5fc5\u987b\u5916\u63a5\u4e0a\u62c9\u7535\u963b\u3002<\/p>\n<p><strong>\u7279\u70b9\uff1a<\/strong><\/p>\n<ul>\n<li>\u53ea\u80fd\u4e3b\u52a8\u8f93\u51fa\u4f4e\u7535\u5e73<\/li>\n<li>\u8f93\u51fa\u9ad8\u7535\u5e73\u9700\u8981\u5916\u90e8\u4e0a\u62c9\u7535\u963b<\/li>\n<li>\u53ef\u4ee5\u5b9e\u73b0\u7535\u5e73\u8f6c\u6362<\/li>\n<li>\u652f\u6301\u7ebf\u4e0e\u529f\u80fd\uff08\u591a\u4e2a\u8bbe\u5907\u5171\u4eab\u4e00\u6761\u7ebf\uff09<\/li>\n<\/ul>\n<p><strong>\u5e94\u7528\u573a\u666f\uff1a<\/strong><br \/>\u5f00\u6f0f\u8f93\u51fa\u6700\u5178\u578b\u7684\u5e94\u7528\u662fI2C\u603b\u7ebf\u3002<\/p>\n<p>I2C\u662f\u591a\u4e3b\u673a\u603b\u7ebf\uff0c\u591a\u4e2a\u8bbe\u5907\u5171\u4eabSDA\u548cSCL\u4e24\u6761\u7ebf\uff0c\u5fc5\u987b\u4f7f\u7528\u5f00\u6f0f\u8f93\u51fa\u914d\u5408\u5916\u90e8\u4e0a\u62c9\u7535\u963b\u3002<\/p>\n<p>\u6b64\u5916\uff0c\u5f00\u6f0f\u8f93\u51fa\u8fd8\u53ef\u4ee5\u7528\u4e8e\u7535\u5e73\u8f6c\u6362\uff0c\u6bd4\u5982MCU\u662f3.3V\u4f9b\u7535\uff0c\u4f46\u9700\u8981\u8f93\u51fa5V\u4fe1\u53f7\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528\u5f00\u6f0f\u8f93\u51fa\u914d\u54085V\u4e0a\u62c9\u7535\u963b\u3002<\/p>\n<p><strong>\u4ee3\u7801\u793a\u4f8b\uff1a<\/strong><\/p>\n<pre><code class=\"c\">GPIO_InitTypeDef GPIO_InitStruct = {0};\n\n__HAL_RCC_GPIOB_CLK_ENABLE();\n\n\/\/ \u914d\u7f6ePB6\u548cPB7\u4e3a\u5f00\u6f0f\u8f93\u51fa\uff0c\u7528\u4e8eI2C\uff08SCL\u548cSDA\uff09\nGPIO_InitStruct.Pin = GPIO_PIN_6 | GPIO_PIN_7;\nGPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_OD;\nGPIO_InitStruct.Pull = GPIO_PULLUP;  \/\/ \u5982\u679c\u5916\u90e8\u6ca1\u6709\u4e0a\u62c9\uff0c\u53ef\u4ee5\u4f7f\u80fd\u5185\u90e8\u4e0a\u62c9\nGPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;\nHAL_GPIO_Init(GPIOB, &amp;GPIO_InitStruct);\n\n\/\/ \u6a21\u62dfI2C\u8d77\u59cb\u4fe1\u53f7\nHAL_GPIO_WritePin(GPIOB, GPIO_PIN_7, GPIO_PIN_RESET);  \/\/ SDA\u62c9\u4f4e\nHAL_Delay(1);\nHAL_GPIO_WritePin(GPIOB, GPIO_PIN_6, GPIO_PIN_RESET);  \/\/ SCL\u62c9\u4f4e<\/code><\/pre>\n<h3>3.3 \u63a8\u633d\u590d\u7528\u8f93\u51fa\u6a21\u5f0f<\/h3>\n<p>\u63a8\u633d\u590d\u7528\u8f93\u51fa\u6a21\u5f0f\u662f\u63a8\u633d\u8f93\u51fa\u7684\u590d\u7528\u7248\u672c\u3002<\/p>\n<p>\u5728\u8fd9\u79cd\u6a21\u5f0f\u4e0b\uff0cGPIO\u7684\u63a7\u5236\u6743\u4ea4\u7ed9\u7247\u4e0a\u5916\u8bbe\uff08\u5982SPI\u3001USART\u7b49\uff09\uff0c\u7531\u5916\u8bbe\u81ea\u52a8\u63a7\u5236\u5f15\u811a\u7684\u8f93\u51fa\u3002<\/p>\n<p><strong>\u7279\u70b9\uff1a<\/strong><\/p>\n<ul>\n<li>\u7531\u7247\u4e0a\u5916\u8bbe\u63a7\u5236\u8f93\u51fa<\/li>\n<li>\u5177\u6709\u63a8\u633d\u8f93\u51fa\u7684\u6240\u6709\u7279\u6027<\/li>\n<li>\u7528\u6237\u4e0d\u80fd\u76f4\u63a5\u63a7\u5236\u5f15\u811a\u7535\u5e73<\/li>\n<li>\u9002\u5408\u9ad8\u901f\u901a\u4fe1<\/li>\n<\/ul>\n<p><strong>\u5e94\u7528\u573a\u666f\uff1a<\/strong><br \/>\u63a8\u633d\u590d\u7528\u8f93\u51fa\u4e3b\u8981\u7528\u4e8eSPI\u3001USART\u7b49\u9700\u8981\u9ad8\u901f\u3001\u5f3a\u9a71\u52a8\u80fd\u529b\u7684\u901a\u4fe1\u63a5\u53e3\u3002<\/p>\n<p>\u6bd4\u5982SPI\u7684MOSI\u3001SCK\u5f15\u811a\uff0cUSART\u7684TX\u5f15\u811a\u7b49\u3002<\/p>\n<p><strong>\u4ee3\u7801\u793a\u4f8b\uff1a<\/strong><\/p>\n<pre><code class=\"c\">GPIO_InitTypeDef GPIO_InitStruct = {0};\n\n__HAL_RCC_GPIOA_CLK_ENABLE();\n\n\/\/ \u914d\u7f6ePA9\u4e3a\u63a8\u633d\u590d\u7528\u8f93\u51fa\uff0c\u7528\u4e8eUSART1_TX\nGPIO_InitStruct.Pin = GPIO_PIN_9;\nGPIO_InitStruct.Mode = GPIO_MODE_AF_PP;\nGPIO_InitStruct.Pull = GPIO_NOPULL;\nGPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;\nGPIO_InitStruct.Alternate = GPIO_AF7_USART1;  \/\/ \u590d\u7528\u4e3aUSART1\nHAL_GPIO_Init(GPIOA, &amp;GPIO_InitStruct);\n\n\/\/ \u540e\u7eed\u7531USART\u5916\u8bbe\u63a7\u5236\u8be5\u5f15\u811a<\/code><\/pre>\n<h3>3.4 \u5f00\u6f0f\u590d\u7528\u8f93\u51fa\u6a21\u5f0f<\/h3>\n<p>\u5f00\u6f0f\u590d\u7528\u8f93\u51fa\u6a21\u5f0f\u662f\u5f00\u6f0f\u8f93\u51fa\u7684\u590d\u7528\u7248\u672c\u3002<\/p>\n<p>\u540c\u6837\uff0cGPIO\u7684\u63a7\u5236\u6743\u4ea4\u7ed9\u7247\u4e0a\u5916\u8bbe\uff0c\u4f46\u8f93\u51fa\u7279\u6027\u4e3a\u5f00\u6f0f\u3002<\/p>\n<p><strong>\u7279\u70b9\uff1a<\/strong><\/p>\n<ul>\n<li>\u7531\u7247\u4e0a\u5916\u8bbe\u63a7\u5236\u8f93\u51fa<\/li>\n<li>\u5177\u6709\u5f00\u6f0f\u8f93\u51fa\u7684\u6240\u6709\u7279\u6027<\/li>\n<li>\u9700\u8981\u5916\u90e8\u4e0a\u62c9\u7535\u963b<\/li>\n<li>\u652f\u6301\u591a\u4e3b\u673a\u901a\u4fe1<\/li>\n<\/ul>\n<p><strong>\u5e94\u7528\u573a\u666f\uff1a<\/strong><br \/>\u5f00\u6f0f\u590d\u7528\u8f93\u51fa\u4e3b\u8981\u7528\u4e8eI2C\u3001SMBUS\u7b49\u9700\u8981\u591a\u4e3b\u673a\u901a\u4fe1\u7684\u603b\u7ebf\u3002<\/p>\n<p>\u5f53\u4f7f\u7528STM32\u7684\u786c\u4ef6I2C\u5916\u8bbe\u65f6\uff0cSCL\u548cSDA\u5f15\u811a\u5fc5\u987b\u914d\u7f6e\u4e3a\u5f00\u6f0f\u590d\u7528\u8f93\u51fa\u3002<\/p>\n<p><strong>\u4ee3\u7801\u793a\u4f8b\uff1a<\/strong><\/p>\n<pre><code class=\"c\">GPIO_InitTypeDef GPIO_InitStruct = {0};\n\n__HAL_RCC_GPIOB_CLK_ENABLE();\n\n\/\/ \u914d\u7f6ePB8\u548cPB9\u4e3a\u5f00\u6f0f\u590d\u7528\u8f93\u51fa\uff0c\u7528\u4e8eI2C1\uff08SCL\u548cSDA\uff09\nGPIO_InitStruct.Pin = GPIO_PIN_8 | GPIO_PIN_9;\nGPIO_InitStruct.Mode = GPIO_MODE_AF_OD;\nGPIO_InitStruct.Pull = GPIO_PULLUP;  \/\/ \u4f7f\u80fd\u5185\u90e8\u4e0a\u62c9\uff08\u5916\u90e8\u4e5f\u5e94\u6709\u4e0a\u62c9\u7535\u963b\uff09\nGPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;\nGPIO_InitStruct.Alternate = GPIO_AF4_I2C1;  \/\/ \u590d\u7528\u4e3aI2C1\nHAL_GPIO_Init(GPIOB, &amp;GPIO_InitStruct);\n\n\/\/ \u540e\u7eed\u7531I2C\u5916\u8bbe\u63a7\u5236\u8be5\u5f15\u811a<\/code><\/pre>\n<h2>4. \u5de5\u4f5c\u6a21\u5f0f\u9009\u62e9\u5efa\u8bae<\/h2>\n<p>\u5728\u5b9e\u9645\u5f00\u53d1\u4e2d\uff0c\u5982\u4f55\u9009\u62e9\u5408\u9002\u7684GPIO\u5de5\u4f5c\u6a21\u5f0f\u5462\uff1f\u8fd9\u91cc\u7ed9\u51fa\u4e00\u4e9b\u5b9e\u7528\u5efa\u8bae\uff1a<\/p>\n<p><strong>4.1 \u8f93\u5165\u6a21\u5f0f\u9009\u62e9\uff1a<\/strong><\/p>\n<ul>\n<li>\u5982\u679c\u5916\u90e8\u7535\u8def\u5df2\u6709\u4e0a\u62c9\/\u4e0b\u62c9\u7535\u963b\uff0c\u9009\u62e9\u6d6e\u7a7a\u8f93\u5165<\/li>\n<li>\u5982\u679c\u662f\u6309\u952e\u68c0\u6d4b\u4e14\u6309\u952e\u63a5\u5730\uff0c\u9009\u62e9\u4e0a\u62c9\u8f93\u5165<\/li>\n<li>\u5982\u679c\u662f\u6309\u952e\u68c0\u6d4b\u4e14\u6309\u952e\u63a5VDD\uff0c\u9009\u62e9\u4e0b\u62c9\u8f93\u5165<\/li>\n<li>\u5982\u679c\u662fADC\u91c7\u96c6\u6a21\u62df\u4fe1\u53f7\uff0c\u5fc5\u987b\u9009\u62e9\u6a21\u62df\u8f93\u5165<\/li>\n<\/ul>\n<p><strong>4.2 \u8f93\u51fa\u6a21\u5f0f\u9009\u62e9\uff1a<\/strong><\/p>\n<ul>\n<li>\u4e00\u822c\u7684LED\u9a71\u52a8\u3001\u4fe1\u53f7\u8f93\u51fa\uff0c\u9009\u62e9\u63a8\u633d\u8f93\u51fa<\/li>\n<li>I2C\u3001\u5355\u603b\u7ebf\u7b49\u591a\u8bbe\u5907\u5171\u4eab\u7684\u603b\u7ebf\uff0c\u9009\u62e9\u5f00\u6f0f\u8f93\u51fa<\/li>\n<li>\u9700\u8981\u7535\u5e73\u8f6c\u6362\u65f6\uff0c\u9009\u62e9\u5f00\u6f0f\u8f93\u51fa\u914d\u5408\u5916\u90e8\u4e0a\u62c9<\/li>\n<li>\u4f7f\u7528\u7247\u4e0a\u5916\u8bbe\uff08\u5982SPI\u3001USART\uff09\u65f6\uff0c\u6839\u636e\u5916\u8bbe\u8981\u6c42\u9009\u62e9\u590d\u7528\u6a21\u5f0f<\/li>\n<\/ul>\n<p><strong>4.3 \u901f\u5ea6\u7b49\u7ea7\u9009\u62e9\uff1a<\/strong><br \/>STM32\u7684GPIO\u8fd8\u53ef\u4ee5\u914d\u7f6e\u8f93\u51fa\u901f\u5ea6\uff08Low\u3001Medium\u3001High\u3001Very High\uff09\uff0c\u8fd9\u4f1a\u5f71\u54cd\u5f15\u811a\u7684\u7ffb\u8f6c\u901f\u5ea6\u548c\u529f\u8017\u3002\u4e00\u822c\u539f\u5219\u662f\uff1a<\/p>\n<ul>\n<li>\u4f4e\u901f\u4fe1\u53f7\uff08\u5982LED\u63a7\u5236\uff09\u9009\u62e9Low Speed\uff0c\u964d\u4f4eEMI\u548c\u529f\u8017<\/li>\n<li>\u4e2d\u901f\u4fe1\u53f7\uff08\u5982\u666e\u901a\u901a\u4fe1\uff09\u9009\u62e9Medium\u6216High Speed<\/li>\n<li>\u9ad8\u901f\u4fe1\u53f7\uff08\u5982\u9ad8\u901fSPI\u3001SDIO\uff09\u9009\u62e9Very High Speed<\/li>\n<\/ul>\n<h2>5. \u5e38\u89c1\u95ee\u9898\u4e0e\u6ce8\u610f\u4e8b\u9879<\/h2>\n<p><strong>5.1 \u4e3a\u4ec0\u4e48\u5f00\u6f0f\u8f93\u51fa\u9700\u8981\u4e0a\u62c9\u7535\u963b\uff1f<\/strong><br \/>\u56e0\u4e3a\u5f00\u6f0f\u8f93\u51fa\u53ea\u80fd\u4e3b\u52a8\u62c9\u4f4e\uff0c\u4e0d\u80fd\u4e3b\u52a8\u62c9\u9ad8\u3002<\/p>\n<p>\u6ca1\u6709\u4e0a\u62c9\u7535\u963b\u65f6\uff0c\u8f93\u51fa\u9ad8\u7535\u5e73\u65f6\u5f15\u811a\u5904\u4e8e\u9ad8\u963b\u6001\uff0c\u65e0\u6cd5\u9a71\u52a8\u8d1f\u8f7d\u3002<\/p>\n<p>\u4e0a\u62c9\u7535\u963b\u7684\u4f5c\u7528\u662f\u5728N-MOS\u5173\u65ad\u65f6\u5c06\u5f15\u811a\u62c9\u5230\u9ad8\u7535\u5e73\u3002<\/p>\n<p><strong>5.2 \u63a8\u633d\u8f93\u51fa\u53ef\u4ee5\u63a5\u4e0a\u62c9\u7535\u963b\u5417\uff1f<\/strong><br \/>\u53ef\u4ee5\uff0c\u4f46\u901a\u5e38\u6ca1\u6709\u5fc5\u8981\u3002<\/p>\n<p>\u63a8\u633d\u8f93\u51fa\u672c\u8eab\u5c31\u80fd\u8f93\u51fa\u5f3a\u9ad8\u7535\u5e73\u548c\u5f3a\u4f4e\u7535\u5e73\uff0c\u989d\u5916\u7684\u4e0a\u62c9\u7535\u963b\u53ea\u4f1a\u589e\u52a0\u529f\u8017\u3002<\/p>\n<p>\u53ea\u6709\u5728\u9700\u8981\u63d0\u9ad8\u9a71\u52a8\u80fd\u529b\u6216\u8fdb\u884c\u7535\u5e73\u8f6c\u6362\u65f6\u624d\u9700\u8981\u3002<\/p>\n<p><strong>5.3 \u591a\u4e2aGPIO\u53ef\u4ee5\u8fde\u63a5\u5728\u4e00\u8d77\u5417\uff1f<\/strong><br \/>\u5982\u679c\u90fd\u662f\u63a8\u633d\u8f93\u51fa\uff0c\u7edd\u5bf9\u4e0d\u80fd\u8fde\u63a5\u5728\u4e00\u8d77\uff01\u5f53\u4e00\u4e2a\u8f93\u51fa\u9ad8\u7535\u5e73\u3001\u53e6\u4e00\u4e2a\u8f93\u51fa\u4f4e\u7535\u5e73\u65f6\uff0c\u4f1a\u5f62\u6210\u77ed\u8def\uff0c\u53ef\u80fd\u70e7\u6bc1\u82af\u7247\u3002<\/p>\n<p>\u5982\u679c\u9700\u8981\u591a\u4e2aGPIO\u5171\u4eab\u4e00\u6761\u7ebf\uff0c\u5fc5\u987b\u4f7f\u7528\u5f00\u6f0f\u8f93\u51fa\u3002<\/p>\n<p><strong>5.4 \u590d\u7528\u529f\u80fd\u5982\u4f55\u914d\u7f6e\uff1f<\/strong><br \/>\u4f7f\u7528HAL\u5e93\u65f6\uff0c\u9700\u8981\u540c\u65f6\u914d\u7f6eGPIO\u6a21\u5f0f\u548c\u590d\u7528\u529f\u80fd\u3002<\/p>\n<p>\u4e0d\u540c\u7684\u5f15\u811a\u652f\u6301\u7684\u590d\u7528\u529f\u80fd\u4e0d\u540c\uff0c\u9700\u8981\u67e5\u9605\u82af\u7247\u6570\u636e\u624b\u518c\u4e2d\u7684\u5f15\u811a\u590d\u7528\u8868\u3002<\/p>\n<p>\u901a\u8fc7\u4ee5\u4e0a\u8be6\u7ec6\u7684\u4ecb\u7ecd\uff0c\u76f8\u4fe1\u5927\u5bb6\u5bf9STM32\u7684GPIO\u516b\u79cd\u5de5\u4f5c\u6a21\u5f0f\u6709\u4e86\u6df1\u5165\u7684\u7406\u89e3\u3002<\/p>\n<p>\u5728\u5b9e\u9645\u9879\u76ee\u4e2d\uff0c\u6b63\u786e\u9009\u62e9GPIO\u7684\u5de5\u4f5c\u6a21\u5f0f\u662f\u4fdd\u8bc1\u7cfb\u7edf\u7a33\u5b9a\u8fd0\u884c\u7684\u57fa\u7840\u3002<\/p>\n<p>\u5e0c\u671b\u8fd9\u7bc7\u6587\u7ae0\u80fd\u5e2e\u52a9\u5927\u5bb6\u5728\u5d4c\u5165\u5f0f\u5f00\u53d1\u7684\u9053\u8def\u4e0a\u5c11\u8d70\u5f2f\u8def\uff0c\u5199\u51fa\u66f4\u52a0\u53ef\u9760\u7684\u4ee3\u7801\u3002<\/p>\n<p><strong>\u66f4\u591a\u7f16\u7a0b\u5b66\u4e60\u8d44\u6e90<\/strong><\/p>\n<ul>\n<li><a href=\"https:\/\/link.segmentfault.com\/?enc=MYCqSyGT9pBgnbyWw12Qlw%3D%3D.CADcbOrLs0PxG1t9NNJGSXiIIRLnkcDouRsDSLRooXqmFOGAtTP61eH46l2UOB3XHa12g2R3Hlp%2F0myZI7JBCQ%3D%3D\" rel=\"nofollow noopener noreferrer\" target=\"_blank\">C\u8bed\u8a00\u96f6\u57fa\u7840\u5165\u95e8\u7535\u5b50\u4e66-2026\u6700\u65b0\u7248<\/a><\/li>\n<li><a href=\"https:\/\/link.segmentfault.com\/?enc=dek3FjmVF46DHTqcaLqNEA%3D%3D.LnGE4%2FBVu9Sm6YlOg3uX18Ea%2F0fT%2BmxlBmI9Xbec%2BfnfkrYoaYLZnFS2K2fSAq1t3Bf6xu8dRuMuTQlPzt1ZMg%3D%3D\" rel=\"nofollow noopener noreferrer\" target=\"_blank\">STM32\u96f6\u57fa\u7840\u5165\u95e8\u7535\u5b50\u4e66-2026\u6700\u65b0\u7248<\/a><\/li>\n<li><a href=\"https:\/\/link.segmentfault.com\/?enc=RTmjxQMETP0gbCZLWEdk7A%3D%3D.dGzVip9mRJ7tr8%2BO3xgXxNcHQDVz9ZGVd%2F3AlRjXiMFtw8Cz%2FaCTo0xm8k1GcKAhHrd%2FfrjnJGx88C8Ax6NZOeCN3d8AhnUCJiJcg8nPk1o%3D\" rel=\"nofollow noopener noreferrer\" target=\"_blank\">FreeRTOS\u96f6\u57fa\u7840\u5165\u95e8\u7535\u5b50\u4e66-2026\u6700\u65b0\u7248<\/a><\/li>\n<li><a href=\"https:\/\/link.segmentfault.com\/?enc=afNgpp%2BQhVmZuAywWXC%2FQA%3D%3D.mNkQ%2Bapz0S6Ll6C0hZ2yrtZqTSydmsuxHehjb0%2F%2F%2BzZX1xRMtcSpM%2F2SQmck%2FczSaix9FBmZPE2kmBl5mE7%2Fug%3D%3D\" rel=\"nofollow noopener noreferrer\" target=\"_blank\">C++ \u96f6\u57fa\u7840\u5165\u95e8\u7535\u5b50\u4e66-2026\u6700\u65b0\u7248<\/a><\/li>\n<li><a href=\"https:\/\/link.segmentfault.com\/?enc=YmNEqeRxzDfUgaAuL5M%2FqA%3D%3D.tDh2h55f45%2BsQBBw9fvUjh%2FH1kC6zgbzMF33LQrDVLBXskWj95vsDTa4deqHnl0t8e%2BtpEJmTdYuDdJRdt3ywA%3D%3D\" rel=\"nofollow noopener noreferrer\" target=\"_blank\">51\u5355\u7247\u673a\u96f6\u57fa\u7840\u5165\u95e8\u5b66\u4e60\u8def\u7ebf<\/a><\/li>\n<li><a href=\"https:\/\/link.segmentfault.com\/?enc=kcgvebZtCu9K1LkhUxrTXw%3D%3D.SMarNLA%2BmigPoRxFxxqY6xfDLUTYKokDFnyzqWJsF05tr%2Bwax1jBzZV5YHGobomljdGtGriuO2NbP275RplaVA%3D%3D\" rel=\"nofollow noopener noreferrer\" target=\"_blank\">AD\u753b\u677f\u96f6\u57fa\u7840\u5165\u95e8\u5b66\u4e60\u8def\u7ebf<\/a><\/li>\n<li><a href=\"https:\/\/link.segmentfault.com\/?enc=3HjnARM6%2FslH5yNpPduQ6g%3D%3D.dKs51bS%2FOHmn9834slaanzxmOCREF70Apuxs0aZ%2BCCXBY0gplhKlzQB5ZXKzf6aUfKlTsIILux1vH6PflKaHoQ%3D%3D\" rel=\"nofollow noopener noreferrer\" target=\"_blank\">C\u8bed\u8a00\u96f6\u57fa\u7840\u5165\u95e8\u5b66\u4e60\u8def\u7ebf<\/a><\/li>\n<li><a href=\"https:\/\/link.segmentfault.com\/?enc=6qggVxbEiBdijn4wYwI94g%3D%3D.hBByYGBQQU4w2p%2FDldDIbKW7FviwAHAhGcuay2QNrLL4VNlGvesr05lbpxY62agct08KqQsbeAq%2B42OWtwmOEQ%3D%3D\" rel=\"nofollow noopener noreferrer\" target=\"_blank\">C++\u8bed\u8a00\u96f6\u57fa\u7840\u5165\u95e8\u5b66\u4e60\u8def\u7ebf<\/a><\/li>\n<li><a href=\"https:\/\/link.segmentfault.com\/?enc=SA3ea9knuRbeaaztmI8zag%3D%3D.5g7KlbNi0YUqbMloRbDe%2F05MlVkuaj7Tn%2F3a30120OMEShZvgjFB2%2FHwpksyX2y%2F62bBFHASX8WoKgIbjrodakgknYDjXsH2RxuuQZlXt2I%3D\" rel=\"nofollow noopener noreferrer\" target=\"_blank\">ESP32\u96f6\u57fa\u7840\u5165\u95e8\u5b66\u4e60\u8def\u7ebf<\/a><\/li>\n<li><a href=\"https:\/\/link.segmentfault.com\/?enc=AH%2BifOxrsFeqb7ExpUytnQ%3D%3D.H4vQkj6t51Y%2F54dh0xLArb07q192chojqEK2g7aHw8nE2jP9U3gk3o3WPLPeQmIF6pht5DSNOIuM%2FCqUmW%2FDYXG2jhUT9fAyBW2wO6GjAUo%3D\" rel=\"nofollow noopener noreferrer\" target=\"_blank\">FreeRTOS\u96f6\u57fa\u7840\u5165\u95e8\u5b66\u4e60\u8def\u7ebf<\/a><\/li>\n<li><a href=\"https:\/\/link.segmentfault.com\/?enc=1lufq3mDS0W4OCF7AckzCQ%3D%3D.rQ%2BIm3neD7DxiTEg5p8ecLGnGDhLmgO3iriipgnrURl%2BNvnj0qlgXx83nydG97z2P%2B%2FH9bGPnxcXVuLKg0esPJwMVeAUrwrzWacQv2GiTxA%3D\" rel=\"nofollow noopener noreferrer\" target=\"_blank\">Linux\u5e94\u7528\u5f00\u53d1\u96f6\u57fa\u7840\u5165\u95e8\u5b66\u4e60\u8def\u7ebf<\/a><\/li>\n<li><a href=\"https:\/\/link.segmentfault.com\/?enc=qXNA300ONPdT7GkXOsBQkw%3D%3D.aaQlm2fHyqtd9johJtmxUGem2%2BVdVlRtGFvKF0dyhlKrNSmL9tp2RAQXNWpdQ9HnxPYJ6%2BV0xKLhL7NblAxkMUkdbiBJJtoOtls3v4wfL%2Fs%3D\" rel=\"nofollow noopener noreferrer\" target=\"_blank\">Linux\u5e95\u5c42\u5f00\u53d1\u96f6\u57fa\u7840\u5165\u95e8\u5b66\u4e60\u8def\u7ebf<\/a><\/li>\n<li><a href=\"https:\/\/link.segmentfault.com\/?enc=nlbtTz8WN6O%2FQ10D8RTKfg%3D%3D.DjaehavBv1HF5ApQ5qS2nyuL5it3Jq7Tx4kSgBfA6hr8qtIlYsLNF0nlP5G%2Bq3dxOgsQ4UjBkybc3TyPQ11Ddw%3D%3D\" rel=\"nofollow noopener noreferrer\" target=\"_blank\">LVGL\u96f6\u57fa\u7840\u5165\u95e8\u5b66\u4e60\u8def\u7ebf<\/a><\/li>\n<li><a href=\"https:\/\/link.segmentfault.com\/?enc=9nX%2BN4bxGLyo5cSeLYeokw%3D%3D.5COdYtO3RQN%2F%2FyDKHNY3DfxaCGNQPN5NU7gDeLhCFI%2FUjnhPgPjvgvq%2BfGesUiES3MpyysdCQ8lFO8fj1THz%2Bg%3D%3D\" rel=\"nofollow noopener noreferrer\" target=\"_blank\">QT\u96f6\u57fa\u7840\u5165\u95e8\u5b66\u4e60\u8def\u7ebf<\/a><\/li>\n<li><a href=\"https:\/\/link.segmentfault.com\/?enc=I%2B1uDmXzfmbnM8L33PY6ow%3D%3D.stEWT08vrlrnzmM8reJaWMbvKiOVxDsqqxt5dTUA3kLhEk2qUp21SpAQ3hBlQgoq3BLoZ0KyOsw7nEzWBMa2g8urmLTlz61ZpLgdXcmWX%2Fg%3D\" rel=\"nofollow noopener noreferrer\" target=\"_blank\">STM32\u96f6\u57fa\u7840\u5165\u95e8\u5b66\u4e60\u8def\u7ebf<\/a><\/li>\n<\/ul>\n<p><a href=\"https:\/\/segmentfault.com\/a\/1190000047571777\">https:\/\/segmentfault.com\/a\/1190000047571777<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5927\u5bb6\u597d\uff0c\u6211\u662f\u826f\u8bb8\u3002 \u5728\u5d4c\u5165\u5f0f\u5f00\u53d1\u4e2d\uff0cGPIO\uff08General Purpose Input\/Output\uff0c\u901a\u7528\u8f93 [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[4],"tags":[],"class_list":["post-10021210","post","type-post","status-publish","format-standard","hentry","category-share"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts\/10021210","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=10021210"}],"version-history":[{"count":0,"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts\/10021210\/revisions"}],"wp:attachment":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=10021210"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=10021210"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=10021210"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}