{"id":265340,"date":"2024-05-15T16:09:00","date_gmt":"2024-05-15T08:09:00","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/265340.html"},"modified":"2024-05-15T16:09:09","modified_gmt":"2024-05-15T08:09:09","slug":"%e5%8d%95%e7%89%87%e6%9c%ba%e6%80%8e%e4%b9%88%e5%86%99%e4%bb%a3%e7%a0%81%e5%ae%9e%e7%8e%b0%e4%bb%bf%e7%9c%9f%e5%9b%be%e7%9a%84%e6%8c%89%e9%94%ae%e8%af%bb%e5%8f%96","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/265340.html","title":{"rendered":"\u5355\u7247\u673a\u600e\u4e48\u5199\u4ee3\u7801\u5b9e\u73b0\u4eff\u771f\u56fe\u7684\u6309\u952e\u8bfb\u53d6"},"content":{"rendered":"<p style=\"text-align:center\"><img decoding=\"async\" src=\"https:\/\/cdn-kb.worktile.com\/kb\/wp-content\/uploads\/2024\/04\/27130032\/94caddef-c492-4ce1-8522-f9474d03964e.webp\" alt=\"\u5355\u7247\u673a\u600e\u4e48\u5199\u4ee3\u7801\u5b9e\u73b0\u4eff\u771f\u56fe\u7684\u6309\u952e\u8bfb\u53d6\" \/><\/p>\n<p><p>\u5355\u7247\u673a\u5199\u4ee3\u7801\u5b9e\u73b0\u4eff\u771f\u56fe\u7684\u6309\u952e\u8bfb\u53d6\uff0c<strong>\u9996\u5148\u8981\u521d\u59cb\u5316\u5355\u7247\u673a\u7684\u8f93\u5165\u8f93\u51fa\u53e3\u3001\u914d\u7f6e\u6309\u952e\u6240\u8fde\u63a5\u7684IO\u53e3\u4e3a\u8f93\u5165\u72b6\u6001\u3001\u5728\u7a0b\u5e8f\u4e2d\u7f16\u5199\u626b\u63cf\u6309\u952e\u51fd\u6570<\/strong>\u3002\u8be6\u7ec6\u6765\u8bb2\uff0c\u8981\u786e\u4fdd\u5355\u7247\u673a\u7684\u8f93\u5165\u5f15\u811a\u4e0e\u6309\u952e\u7535\u8def\u76f8\u8fde\uff0c\u5e76\u8bbe\u7f6e\u597d\u53bb\u6296\u52a8\u673a\u5236\u4ee5\u907f\u514d\u8bef\u64cd\u4f5c\u3002\u63a5\u4e0b\u6765\uff0c\u901a\u8fc7\u7f16\u5199\u5faa\u73af\u68c0\u6d4b\u662f\u5426\u6709\u6309\u952e\u52a8\u4f5c\u7684\u4ee3\u7801\uff0c\u4e00\u65e6\u68c0\u6d4b\u5230\u6309\u952e\u6d3b\u52a8\uff0c\u4fbf\u8bfb\u53d6\u76f8\u5e94\u7684\u503c\uff0c\u5e76\u5bf9\u5176\u8fdb\u884c\u5904\u7406\uff0c\u4ece\u800c\u5b9e\u73b0\u6309\u952e\u7684\u529f\u80fd\u3002<\/p>\n<\/p>\n<p><h3>\u4e00\u3001<strong>\u6309\u952e\u63a5\u53e3\u7535\u8def\u8bbe\u8ba1<\/strong><\/h3>\n<\/p>\n<p><p>\u5728\u8bbe\u8ba1\u6309\u952e\u63a5\u53e3\u7535\u8def\u524d\uff0c\u9700\u8981\u4e86\u89e3\u5355\u7247\u673a\u7684\u8f93\u5165\u5f15\u811a\u7279\u6027\uff0c\u8f93\u5165\u53e3\u901a\u5e38\u53ef\u4ee5\u8bbe\u7f6e\u4e3a\u4e0a\u62c9\u8f93\u5165\u6216\u8005\u6d6e\u7a7a\u8f93\u5165\u3002\u7136\u540e\u6839\u636e\u5355\u7247\u673a\u7684\u7c7b\u578b\uff0c\u9009\u62e9\u9002\u5408\u7684\u4e0a\u62c9\u6216\u4e0b\u62c9\u7535\u963b\uff0c\u8fd9\u6837\u53ef\u4ee5\u786e\u4fdd\u5f53\u6309\u952e\u672a\u88ab\u6309\u4e0b\u65f6\uff0c\u8f93\u5165\u5f15\u811a\u5904\u4e8e\u4e00\u4e2a\u5df2\u77e5\u7684\u7535\u5e73\u72b6\u6001\u3002<\/p>\n<\/p>\n<ul>\n<li>\u4e0a\u62c9\u6309\u952e\u8bbe\u8ba1\uff1a\u5728\u5355\u7247\u673a\u8f93\u5165\u5f15\u811a\u4e0eGND\u4e4b\u95f4\u63a5\u4e00\u4e2a\u6309\u952e\uff0c\u6309\u952e\u672a\u6309\u4e0b\u65f6\uff0c\u5f15\u811a\u901a\u8fc7\u5185\u90e8\u4e0a\u62c9\u7535\u963b\u5904\u4e8e\u9ad8\u7535\u5e73\uff1b\u6309\u4e0b\u65f6\uff0c\u5f15\u811a\u7535\u5e73\u4e3a\u4f4e\u3002<\/li>\n<li>\u4e0b\u62c9\u6309\u952e\u8bbe\u8ba1\uff1a\u5728\u5355\u7247\u673a\u8f93\u5165\u5f15\u811a\u4e0eVCC\u4e4b\u95f4\u63a5\u4e00\u4e2a\u6309\u952e\uff0c\u6309\u952e\u672a\u6309\u4e0b\u65f6\uff0c\u5f15\u811a\u901a\u8fc7\u5916\u90e8\u4e0b\u62c9\u7535\u963b\u5904\u4e8e\u4f4e\u7535\u5e73\uff1b\u6309\u4e0b\u65f6\uff0c\u5f15\u811a\u7535\u5e73\u4e3a\u9ad8\u3002<\/li>\n<\/ul>\n<p><h3>\u4e8c\u3001<strong>\u521d\u59cb\u5316\u4e0e\u914d\u7f6eIO\u53e3<\/strong><\/h3>\n<\/p>\n<p><p>\u5728\u7a0b\u5e8f\u4e2d\uff0c\u9996\u5148\u9700\u8fdb\u884cIO\u53e3\u7684\u914d\u7f6e\uff0c\u5c06\u5355\u7247\u673a\u4e0e\u6309\u952e\u8fde\u63a5\u7684IO\u53e3\u8bbe\u7f6e\u4e3a\u8f93\u5165\u6a21\u5f0f\u3002\u82e5\u5355\u7247\u673a\u652f\u6301\u5185\u90e8\u4e0a\u4e0b\u62c9\uff0c\u5219\u8fd8\u9700\u8981\u76f8\u5e94\u914d\u7f6e\u8fd9\u4e9b\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-c\">void GPIO_Configuration(void) {<\/p>\n<p>    \/\/ \u793a\u4f8b\u4f2a\u4ee3\u7801\uff0c\u5177\u4f53\u8bed\u6cd5\u6839\u636e\u4f7f\u7528\u7684\u5355\u7247\u673a\u7c7b\u578b\u800c\u5b9a<\/p>\n<p>    \/\/ \u8bbe\u7f6eGPIO\u7aef\u53e3\u6a21\u5f0f\u4e3a\u8f93\u5165<\/p>\n<p>    GPIO_InitTypeDef GPIO_InitStructure;<\/p>\n<p>    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_x; \/\/ \u5bf9\u5e94\u6309\u952e\u7684GPIO Pin<\/p>\n<p>    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU; \/\/ \u8bbe\u7f6e\u4e3a\u8f93\u5165\u4e0a\u62c9\u6a21\u5f0f<\/p>\n<p>    \/\/ \u6216\u8005GPIO_Mode_IPD (\u8f93\u5165\u4e0b\u62c9\u6a21\u5f0f) \u5982\u679c\u786c\u4ef6\u7535\u8def\u8bbe\u8ba1\u4e3a\u4e0a\u62c9\u6216\u4e0b\u62c9<\/p>\n<p>    GPIO_Init(GPIOx, &amp;GPIO_InitStructure);<\/p>\n<p>}<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h3>\u4e09\u3001<strong>\u7f16\u5199\u6309\u952e\u626b\u63cf\u51fd\u6570<\/strong><\/h3>\n<\/p>\n<p><p>\u6309\u952e\u626b\u63cf\u51fd\u6570\u7684\u4f5c\u7528\u662f\u68c0\u6d4b\u6309\u952e\u662f\u5426\u88ab\u64cd\u4f5c\uff0c\u82e5\u88ab\u64cd\u4f5c\uff0c\u8fd8\u9700\u5224\u65ad\u662f\u77ed\u6309\u8fd8\u662f\u957f\u6309\uff0c\u8fd9\u6d89\u53ca\u5230\u5bf9\u6309\u952e\u72b6\u6001\u7684\u6301\u7eed\u8ddf\u8e2a\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-c\">#define KEY_PIN     GPIO_Pin_x \/\/ \u6307\u5b9a\u6309\u952e\u7684\u5f15\u811a<\/p>\n<p>#define KEY_PORT    GPIOx      \/\/ \u6307\u5b9a\u6309\u952e\u6240\u5728\u7684\u7aef\u53e3<\/p>\n<p>uint8_t Key_Scan(void) {<\/p>\n<p>    \/\/ \u68c0\u6d4b\u662f\u5426\u6709\u6309\u952e\u6309\u4e0b<\/p>\n<p>    if (GPIO_ReadInputDataBit(KEY_PORT, KEY_PIN) == RESET) {<\/p>\n<p>        \/\/ \u5ef6\u65f6\u53bb\u6296\u52a8<\/p>\n<p>        ms_Delay(20);<\/p>\n<p>        if (GPIO_ReadInputDataBit(KEY_PORT, KEY_PIN) == RESET) {<\/p>\n<p>            while (GPIO_ReadInputDataBit(KEY_PORT, KEY_PIN) == RESET);<\/p>\n<p>            return 1; \/\/ \u8fd4\u56de\u6309\u952e\u6309\u4e0b\u7684\u6807\u5fd7<\/p>\n<p>        }<\/p>\n<p>    }<\/p>\n<p>    return 0; \/\/ \u65e0\u6309\u952e\u6309\u4e0b<\/p>\n<p>}<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h3>\u56db\u3001<strong>\u53bb\u6296\u52a8\u5904\u7406<\/strong><\/h3>\n<\/p>\n<p><p>\u6309\u952e\u5728\u88ab\u6309\u4e0b\u548c\u91ca\u653e\u65f6\u4f1a\u4ea7\u751f\u6296\u52a8\uff0c\u9700\u8981\u901a\u8fc7\u8f6f\u4ef6\u53bb\u6296\u52a8\u6765\u786e\u4fdd\u6309\u952e\u72b6\u6001\u7684\u7a33\u5b9a\u3002\u901a\u5e38\uff0c\u8fde\u7eed\u91c7\u6837\u591a\u6b21\u5e76\u786e\u8ba4\u7535\u5e73\u72b6\u6001\u4e00\u81f4\u624d\u8ba4\u4e3a\u662f\u6709\u6548\u7684\u6309\u952e\u6d3b\u52a8\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-c\">uint8_t Debounce() {<\/p>\n<p>    \/\/ \u8bb0\u5f55\u8fde\u7eed\u91c7\u6837\u76f8\u540c\u72b6\u6001\u7684\u6b21\u6570<\/p>\n<p>    uint8_t count = 0;<\/p>\n<p>    while (1) {<\/p>\n<p>        if (GPIO_ReadInputDataBit(KEY_PORT, KEY_PIN) == RESET) {<\/p>\n<p>            \/\/ \u8fde\u7eed\u68c0\u6d4b\u5230\u6309\u952e\u6309\u4e0b<\/p>\n<p>            if (++count &gt;= DEBOUNCE_CHECKS) {<\/p>\n<p>                return 1;<\/p>\n<p>            }<\/p>\n<p>        } else {<\/p>\n<p>            \/\/ \u8fde\u7eed\u68c0\u6d4b\u5230\u6309\u952e\u672a\u6309\u4e0b<\/p>\n<p>            count = 0;<\/p>\n<p>        }<\/p>\n<p>        ms_Delay(DEBOUNCE_INTERVAL);<\/p>\n<p>    }<\/p>\n<p>}<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h3>\u4e94\u3001<strong>\u6309\u952e\u72b6\u6001\u673a\u5236\u7406\u89e3<\/strong><\/h3>\n<\/p>\n<p><p>\u5728\u5904\u7406\u6309\u952e\u4e8b\u4ef6\u65f6\uff0c\u6211\u4eec\u53ef\u4ee5\u628a\u6309\u952e\u7684\u72b6\u6001\u5212\u5206\u4e3a\u672a\u6309\u4e0b\u3001\u77ed\u6309\u3001\u957f\u6309\u7b49\uff0c\u901a\u8fc7\u72b6\u6001\u673a\u7684\u65b9\u6cd5\u5bf9\u4e0d\u540c\u7684\u72b6\u6001\u8fdb\u884c\u7ba1\u7406\u548c\u54cd\u5e94\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-c\">enum KeyState {<\/p>\n<p>    NO_PRESS,<\/p>\n<p>    SHORT_PRESS,<\/p>\n<p>    LONG_PRESS<\/p>\n<p>};<\/p>\n<p>KeyState ReadKey() {<\/p>\n<p>    static uint32_t keyTimer = 0;<\/p>\n<p>    if (Key_Scan()) { \/\/ \u68c0\u6d4b\u5230\u6309\u952e\u6309\u4e0b<\/p>\n<p>        if (keyTimer++ &gt; LONG_PRESS_TIME) {<\/p>\n<p>            return LONG_PRESS;<\/p>\n<p>        }<\/p>\n<p>    } else {<\/p>\n<p>        if (keyTimer &gt; SHORT_PRESS_TIME &amp;&amp; keyTimer &lt; LONG_PRESS_TIME) {<\/p>\n<p>            keyTimer = 0;<\/p>\n<p>            return SHORT_PRESS;<\/p>\n<p>        }<\/p>\n<p>        keyTimer = 0;<\/p>\n<p>    }<\/p>\n<p>    return NO_PRESS;<\/p>\n<p>}<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h3>\u516d\u3001<strong>\u7f16\u5199\u4e3b\u5faa\u73af\u4ee3\u7801\u6765\u8bfb\u53d6\u6309\u952e\u72b6\u6001<\/strong><\/h3>\n<\/p>\n<p><p>\u6700\u540e\u5728\u4e3b\u5faa\u73af\u91cc\u4e0d\u65ad\u8c03\u7528\u6309\u952e\u626b\u63cf\u51fd\u6570\uff0c\u5e76\u6839\u636e\u8fd4\u56de\u7684\u6309\u952e\u72b6\u6001\u6765\u6267\u884c\u76f8\u5e94\u64cd\u4f5c\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-c\">int m<a href=\"https:\/\/docs.pingcode.com\/blog\/59162.html\" target=\"_blank\">AI<\/a>n(void) {<\/p>\n<p>    \/\/ IO\u53e3\u4e0e\u786c\u4ef6\u76f8\u5173\u521d\u59cb\u5316<\/p>\n<p>    GPIO_Configuration();<\/p>\n<p>    while(1) {<\/p>\n<p>        switch(ReadKey()) {<\/p>\n<p>            case SHORT_PRESS:<\/p>\n<p>                \/\/ \u5904\u7406\u77ed\u6309\u52a8\u4f5c<\/p>\n<p>                break;<\/p>\n<p>            case LONG_PRESS:<\/p>\n<p>                \/\/ \u5904\u7406\u957f\u6309\u52a8\u4f5c<\/p>\n<p>                break;<\/p>\n<p>            default:<\/p>\n<p>                \/\/ \u65e0\u6309\u952e\u6309\u4e0b\uff0c\u6216\u5904\u7406\u5176\u4ed6\u4efb\u52a1<\/p>\n<p>                break;<\/p>\n<p>        }<\/p>\n<p>    }<\/p>\n<p>}<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u7f16\u5199\u7528\u4e8e\u5355\u7247\u673a\u4eff\u771f\u7684\u6309\u952e\u8bfb\u53d6\u4ee3\u7801\u4e3b\u8981\u5305\u62ec\u6309\u952e\u7535\u8def\u7684\u8bbe\u8ba1\u3001\u5355\u7247\u673a\u8f93\u5165\u8f93\u51fa\u53e3\u7684\u521d\u59cb\u5316\u4e0e\u914d\u7f6e\u3001\u6309\u952e\u626b\u63cf\u4e0e\u53bb\u6296\u52a8\u5904\u7406\u3001\u72b6\u6001\u673a\u5236\u7684\u5e94\u7528\u4ee5\u53ca\u4e3b\u5faa\u73af\u4e2d\u7684\u72b6\u6001\u8bfb\u53d6\u4e0e\u4efb\u52a1\u6267\u884c\u3002\u901a\u8fc7\u4ee5\u4e0a\u6b65\u9aa4\uff0c\u53ef\u4ee5\u5b9e\u73b0\u5728\u4eff\u771f\u73af\u5883\u4e0b\u5bf9\u6309\u952e\u8bfb\u53d6\u7684\u6a21\u62df\u4e0e\u6d4b\u8bd5\uff0c\u6700\u7ec8\u5c06\u540c\u6837\u7684\u903b\u8f91\u5e94\u7528\u4e8e\u5b9e\u9645\u786c\u4ef6\u4e2d\u4ee5\u5b8c\u6210\u5b8c\u6574\u7684\u6309\u952e\u529f\u80fd\u5b9e\u73b0\u3002<\/p>\n<\/p>\n<h2><strong>\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n<p><strong>1. 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\u5982\u4f55\u7f16\u5199\u5355\u7247\u673a\u4ee3\u7801\u4ee5\u5b9e\u73b0\u4eff\u771f\u56fe\u4e2d\u6309\u952e\u7684\u6a21\u62df\u5668\u529f\u80fd\uff1f<\/strong><\/p>\n<p>\u5982\u679c\u4f60\u5e0c\u671b\u901a\u8fc7\u5355\u7247\u673a\u7f16\u5199\u7684\u4ee3\u7801\u5b9e\u73b0\u4eff\u771f\u56fe\u4e2d\u6309\u952e\u7684\u6a21\u62df\u5668\u529f\u80fd\uff0c\u53ef\u4ee5\u6309\u7167\u4ee5\u4e0b\u6b65\u9aa4\u8fdb\u884c\uff1a<\/p>\n<ul>\n<li>\u9996\u5148\uff0c\u9700\u8981\u7406\u89e3\u4eff\u771f\u56fe\u4e2d\u6309\u952e\u7684\u5de5\u4f5c\u539f\u7406\u548c\u8f93\u5165\u7535\u5e73\u4fe1\u53f7\u7684\u7279\u5f81\u3002<\/li>\n<li>\u7136\u540e\uff0c\u6839\u636e\u6240\u7528\u5355\u7247\u673a\u7684\u578b\u53f7\u548c\u5f00\u53d1\u5de5\u5177\u9009\u62e9\u5408\u9002\u7684\u7f16\u7a0b\u8bed\u8a00\u3002<\/li>\n<li>\u5728\u4ee3\u7801\u4e2d\uff0c\u4f60\u53ef\u4ee5\u6a21\u62df\u6309\u952e\u7684\u64cd\u4f5c\uff0c\u4ee5\u89e6\u53d1\u76f8\u5e94\u7684\u4e8b\u4ef6\u6216\u529f\u80fd\u3002\u4f8b\u5982\uff0c\u901a\u8fc7\u8bbe\u7f6eIO\u53e3\u7684\u7535\u5e73\u72b6\u6001\uff0c\u6a21\u62df\u6309\u952e\u6309\u4e0b\u6216\u91ca\u653e\u7684\u4fe1\u53f7\u3002<\/li>\n<li>\u53ef\u4ee5\u4f7f\u7528\u5faa\u73af\u6216\u5b9a\u65f6\u5668\u6765\u6a21\u62df\u6309\u952e\u7684\u957f\u6309\u6216\u77ed\u6309\u529f\u80fd\u3002<\/li>\n<li>\u6700\u540e\uff0c\u6839\u636e\u9700\u8981\u8fde\u63a5\u76f8\u5e94\u7684\u5916\u8bbe\u8bbe\u5907\uff0c\u6bd4\u5982LED\u706f\u6216\u8702\u9e23\u5668\uff0c\u4ee5\u5b9e\u73b0\u6309\u952e\u6a21\u62df\u7684\u6548\u679c\u3002<\/li>\n<\/ul>\n<p><strong>3. 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