{"id":156,"date":"2023-01-07T10:34:46","date_gmt":"2023-01-07T02:34:46","guid":{"rendered":"https:\/\/wp.ytdx.cc\/?p=156"},"modified":"2023-01-07T10:34:46","modified_gmt":"2023-01-07T02:34:46","slug":"%e5%8d%95%e7%89%87%e6%9c%ba%e6%b5%8b%e9%87%8fpwm%e5%8d%a0%e7%a9%ba%e6%af%94%e7%9a%84%e4%b8%89%e7%a7%8d%e6%96%b9%e6%b3%95","status":"publish","type":"post","link":"https:\/\/wp.ytdx.cc\/index.php\/2023\/01\/07\/%e5%8d%95%e7%89%87%e6%9c%ba%e6%b5%8b%e9%87%8fpwm%e5%8d%a0%e7%a9%ba%e6%af%94%e7%9a%84%e4%b8%89%e7%a7%8d%e6%96%b9%e6%b3%95\/","title":{"rendered":"\u5355\u7247\u673a\u6d4b\u91cfPWM\u5360\u7a7a\u6bd4\u7684\u4e09\u79cd\u65b9\u6cd5"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">cathy&nbsp;&#8212; \u5468\u56db, 11\/19\/2020 &#8211; 13:57<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">PWM(Pulse Width Modulation)\uff0c\u4e00\u822c\u6307\u8109\u51b2\u5bbd\u5ea6\u8c03\u8282\uff0c\u662f\u5229\u7528\u5fae\u5904\u7406\u5668\u7684\u6570\u5b57\u8f93\u51fa\u6765\u5bf9\u6a21\u62df\u7535\u8def\u8fdb\u884c\u63a7\u5236\u7684\u4e00\u79cd\u975e\u5e38\u6709\u6548\u7684\u6280\u672f\uff0c\u5e7f\u6cdb\u5e94\u7528\u5728\u4ece\u6d4b\u91cf\u3001\u901a\u4fe1\u5230\u529f\u7387\u63a7\u5236\u4e0e\u53d8\u6362\u7684\u8bb8\u591a\u9886\u57df\u4e2d\uff0c\u6bd4\u5982LED\u4eae\u5ea6\u8c03\u8282\u3001\u7535\u673a\u8f6c\u901f\u63a7\u5236\u7b49\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u800c\u5728\u67d0\u4e9b\u7279\u6b8a\u5e94\u7528\u4e2d\uff0c\u6211\u4eec\u4e5f\u9700\u8981\u901a\u8fc7\u6d4b\u91cf\u8f93\u5165PWM\u7684\u5360\u7a7a\u6bd4\uff0c\u6765\u5b9e\u73b0\u4e0d\u540c\u7684\u8f93\u51fa\u63a7\u5236\uff0c\u8fd9\u5c31\u9700\u8981\u4f7f\u7528\u5230PWM\u5360\u7a7a\u6bd4\u7684\u6d4b\u91cf\u65b9\u6cd5\u3002\u8fd9\u91cc\u4ecb\u7ecd\u4e09\u79cd\u4e0d\u540c\u7684\u6d4b\u91cf\u65b9\u6cd5\uff1a\u963b\u585e\u65b9\u5f0f\u3001\u4e2d\u65ad\u65b9\u5f0f\u4ee5\u53ca\u5b9a\u65f6\u5668\u6355\u83b7\u529f\u80fd\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>1. \u963b\u585e\u65b9\u5f0f<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">MCU\u963b\u585e\u65b9\u5f0f\u6d4b\u91cfPWM\u5360\u7a7a\u6bd4\u7684\u539f\u7406\u6bd4\u8f83\u7b80\u5355\uff0c\u4e5f\u53ea\u9700\u8981\u4f7f\u7528\u5230\u4e00\u4e2a\u666e\u901a\u7684IO\u7aef\u53e3\uff08\u8bbe\u7f6e\u4e3a\u8f93\u5165\u6a21\u5f0f\uff0c\u5bf9\u4e8e51\u800c\u8a00\u90a3\u5c31\u662f\u4e00\u4e2a\u666e\u901a\u7684\u53cc\u5411\u53e3\uff09\u3002\u5177\u4f53\u5b9e\u73b0\u6d41\u7a0b\u4e3a\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u7b49\u5f85\u4e0a\u5347\u6cbf\u5230\u6765\uff0c\u7136\u540e\u5f00\u542f\u5b9a\u65f6\u5668\uff0c\u5f00\u59cb\u8ba1\u65f6\uff1b<\/li>\n\n\n\n<li>\u7b49\u5f85\u4e0b\u964d\u6cbf\u5230\u6765\uff0c\u8bb0\u5f55\u4e0b\u5b9a\u65f6\u5668\u7684\u8ba1\u6570\u503c\uff0c\u5373\u5f97\u5230PWM\u7684\u9ad8\u7535\u5e73\u65f6\u95f4<strong>H<\/strong>\uff1b<\/li>\n\n\n\n<li>\u540c\u65f6\uff0c\u6e05\u96f6\u5b9a\u65f6\u5668\uff0c\u91cd\u65b0\u5f00\u59cb\u8ba1\u6570\uff1b<\/li>\n\n\n\n<li>\u7b49\u5f85\u4e0a\u5347\u6cbf\u5230\u6765\uff0c\u8bb0\u5f55\u4e0b\u5b9a\u65f6\u5668\u7684\u8ba1\u6570\u503c\uff0c\u5373\u5f97\u5230PWM\u7684\u4f4e\u7535\u5e73\u65f6\u95f4<strong>L<\/strong>\uff1b<\/li>\n\n\n\n<li>\u8ba1\u7b97\u5f97\u51fa\u5360\u7a7a\u6bd4\uff1aduty = H \/ (H + L);<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u963b\u585e\u65b9\u5f0f\u539f\u7406\u7b80\u5355\uff0c\u800c\u4e14\u53ea\u9700\u8981MCU\u6709\u4e00\u4e2a\u5b9a\u65f6\u5668\u7684\u8d44\u6e90\u5373\u53ef\u5b9e\u73b0\uff1b\u4f46\u91c7\u96c6\u65f6\u963b\u585eCPU\u8fd0\u884c\uff0c\u963b\u585e\u7684\u65f6\u95f4\u548c\u8f93\u5165PWM\u7684\u5468\u671f\u76f8\u5173\uff0c\u53ea\u9002\u7528\u4e8e\u5b9e\u65f6\u6027\u8f83\u4f4e\u7684\u7cfb\u7edf\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u53e6\u5916\uff0c\u4e0a\u8ff0\u6d41\u7a0b\u4e2d\u5b58\u5728\u7740\u4e00\u4e2a\u4e25\u91cd\u7684BUG\uff0c\u5373\u5f53\u8f93\u5165\u7684PWM\u5360\u7a7a\u6bd4\u4e3a0%\u6216\u8005100%\u65f6\uff0c\u7a0b\u5e8f\u4f1a\u88ab\u4e00\u76f4\u963b\u585e\uff0c\u7b49\u5f85\u4e0a\u5347\u6cbf\/\u4e0b\u964d\u6cbf\u7684\u5230\u6765\u3002\u6240\u4ee5\u89e3\u51b3\u65b9\u6cd5\u662f\uff0c\u5728\u7b49\u5f85\u4e0a\u5347\u6cbf\/\u4e0b\u964d\u6cbf\u7684\u8fc7\u7a0b\u4e2d\uff0c\u5b9e\u65f6\u63d0\u53d6\u5b9a\u65f6\u5668\u7684\u503c\uff0c\u4e00\u65e6\u5b9a\u65f6\u65f6\u95f4\u8d85\u8fc71\u4e2a\u5468\u671f\u7684\u9650\u5b9a(\u4e00\u822c\u53ef\u5b9a\u4e49\u4e3a2-3\u4e2a\u5468\u671f\u65f6\u95f4)\uff0c\u5373\u9000\u51fa\u7b49\u5f85\uff0c\u5e76\u6839\u636e\u7aef\u53e3\u7535\u5e73\u5224\u65ad\u6b64\u65f6\u5360\u7a7a\u6bd4\u4e3a0%(\u4f4e\u7535\u5e73)\u6216100%(\u9ad8\u7535\u5e73)\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u793a\u4f8b\u4ee3\u7801\uff0c\u4ec5\u4f9b\u53c2\u8003\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">\/\/\u83b7\u53d6PWM\u8f93\u5165\u811a\u7684\u7535\u5e73\n#define PWM_IN()   xxxxxx\n\/\/\u5b9a\u4e49\u8d85\u65f6\u65f6\u95f4(\u59822-3\u500dPWM\u5468\u671f)\n#define T1_TIMEOUT  xxxxxx\n\nuint8_t PWM_Analyse(void)\n{\n    uint8_t duty = 0xFF;\n    uint16_t pwm_H = 0;\n    uint16_t pwm_L = 0;\n\n    if (PWM_IN())   \/\/\u521d\u59cb\u4e3a\u9ad8\u7535\u5e73\uff0c\u5219\u5f00\u59cb\u7b49\u5f85\u4f4e\u7535\u5e73\n    {\n        TH1 = 0;\n        while (PWM_IN()) \/\/\u7b49\u5f85\u4e0b\u964d\u6cbf\n        {\n            if (TH1 &gt;= T1_TIMEOUT)  \/\/\u4e0b\u964d\u6cbf\u6ca1\u6709\u5230\u6765\uff0c\u5224\u5b9a\u4e3a100%\u5360\u7a7a\u6bd4\n            {\n                duty = 100;\n                return duty;\n            }\n        }\n\n        TH1 = 0;\n        TL1 = 0;\n        while (!PWM_IN()) \/\/\u7b49\u5f85\u4e0a\u5347\u6cbf\n        {\n            if (TH1 &gt;= T1_TIMEOUT)  \/\/\u4e0a\u5347\u6cbf\u6ca1\u6709\u5230\u6765\uff0c\u5224\u5b9a\u4e3a0%\u5360\u7a7a\u6bd4\n            {\n                duty = 0;\n                return duty;\n            }\n        }\n        pwm_L = (TH1 &lt;&lt; 8) | TL1;\n\n        TH1 = 0;\n        TL1 = 0;\n        while (PWM_IN()) \/\/\u7b49\u5f85\u4e0b\u964d\u6cbf\n        {\n            if (TH1 &gt;= T1_TIMEOUT)  \/\/\u4e0b\u964d\u6cbf\u6ca1\u6709\u5230\u6765\uff0c\u5224\u5b9a\u4e3a100%\u5360\u7a7a\u6bd4\n            {\n                duty = 100;\n                return duty;\n            }\n        }\n        pwm_H = (TH1 &lt;&lt; 8) | TL1;\n\n        duty = pwm_H * 100 \/ (pwm_H + pwm_L);\n        return duty;\n    }\n    else    \/\/\u5f53\u524d\u4e3a\u4f4e\u7535\u5e73\uff0c\u5219\u5f00\u59cb\u7b49\u5f85\u9ad8\u7535\u5e73\n    {\n        TH1 = 0;\n        while (!PWM_IN()) \/\/\u7b49\u5f85\u4e0a\u5347\u6cbf\n        {\n            if (TH1 &gt;= T1_TIMEOUT)  \/\/\u4e0a\u5347\u6cbf\u6ca1\u6709\u5230\u6765\uff0c\u5224\u5b9a\u4e3a0%\u5360\u7a7a\u6bd4\n            {\n                duty = 0;\n                return duty;\n            }\n        }\n\n        TH1 = 0;\n        TL1 = 0;\n        while (PWM_IN()) \/\/\u7b49\u5f85\u4e0b\u964d\u6cbf\n        {\n            if (TH1 &gt;= T1_TIMEOUT)  \/\/\u4e0b\u964d\u6cbf\u6ca1\u6709\u5230\u6765\uff0c\u5224\u5b9a\u4e3a100%\u5360\u7a7a\u6bd4\n            {\n                duty = 100;\n                return duty;\n            }\n        }\n        pwm_H = (TH1 &lt;&lt; 8) | TL1;\n\n        TH1 = 0;\n        TL1 = 0;\n        while (!PWM_IN()) \/\/\u7b49\u5f85\u4e0a\u5347\u6cbf\n        {\n            if (TH1 &gt;= T1_TIMEOUT)  \/\/\u4e0a\u5347\u6cbf\u6ca1\u6709\u5230\u6765\uff0c\u5224\u5b9a\u4e3a0%\u5360\u7a7a\u6bd4\n            {\n                duty = 0;\n                return duty;\n            }\n        }\n        pwm_L = (TH1 &lt;&lt; 8) | TL1;\n\n        duty = pwm_H * 100 \/ (pwm_H + pwm_L);\n        return duty;\n    }\n\n    return 0xFF;\n}<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>2. \u4e2d\u65ad\u65b9\u5f0f<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e2d\u65ad\u65b9\u5f0f\u7684PWM\u91c7\u96c6\u539f\u7406\u4e0e\u963b\u585e\u65b9\u5f0f\u76f8\u540c\uff0c\u53ea\u662f\u5c06\u5224\u5b9a\u79fb\u52a8\u81f3\u5916\u90e8\u4e2d\u65ad\u4e2d\u3002\u5f00\u542fMCU\u7aef\u53e3\u7684\u5916\u90e8\u4e2d\u65ad(\u4e0a\u5347\u6cbf\u548c\u4e0b\u964d\u6cbf\u4e2d\u65ad)\uff1b\u5982\u679cMCU\u5916\u90e8\u4e2d\u65ad\u89e6\u53d1\u4e0d\u652f\u6301\u4e0a\u5347\u548c\u4e0b\u964d\u6cbf\u4e2d\u65ad\uff0c\u5219\u5148\u5f00\u542f\u4e0a\u5347\u6cbf\u4e2d\u65ad\uff0c\u5728\u4e2d\u65ad\u5904\u7406\u4e2d\u5207\u6362\u4e2d\u65ad\u89e6\u53d1\u6761\u4ef6\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5904\u7406\u65b9\u6cd5\uff1a\u5728\u4e2d\u65ad\u5904\u7406\u51fd\u6570\u4e2d\uff0c\u6839\u636e\u5f53\u524d\u7535\u5e73\u72b6\u6001\uff0c\u8bb0\u5f55\u4e0b\u5b9a\u65f6\u5668\u7684\u503c\uff0c\u5e76\u6e05\u96f6\u5b9a\u65f6\u5668\u7684\u503c\uff0c\u91cd\u65b0\u5f00\u59cb\u4e0b\u4e00\u8f6e\u8ba1\u65f6\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">0%\u548c100%\u7684\u5904\u7406\uff1a\u8bbe\u5b9a\u4e00\u4e2a\u5b9a\u65f6\u9012\u589e\u7684\u53d8\u91cf\uff0c\u540c\u65f6\u5728\u5916\u90e8\u4e2d\u65ad\u4e2d\u6267\u884c\u6e05\u96f6\u64cd\u4f5c\u3002\u82e5\u8be5\u53d8\u91cf\u8d85\u8fc7\u4e00\u5b9a\u503c(\u8bf4\u660e\u5916\u90e8\u4e2d\u65ad\u6709\u8f83\u957f\u65f6\u95f4\u6ca1\u6709\u89e6\u53d1)\uff0c\u5219\u5224\u5b9a\u4e3a0%\u6216100%\u3002<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">uint16_t pwm_H = 0;\nuint16_t pwm_L = 0;\nuint16_t pwm_time_out = 0;\nvoid EXT1_ISR(void) interrupt EXTI1_VECTOR\n{\n    if (PWM_IN())\n    {\n        pwm_L = (TH1 &lt;&lt; 8) | TL1;    \/\/\u8bb0\u5f55\u4f4e\u7535\u5e73\u65f6\u95f4\n        TH1 = 0;\n        TL1 = 0;\n    }\n    else\n    {\n        pwm_H = (TH1 &lt;&lt; 8) | TL1;    \/\/\u8bb0\u5f55\u9ad8\u7535\u5e73\u65f6\u95f4\n        TH1 = 0;\n        TL1 = 0;\n    }\n\n    \/\/\u8be5\u53d8\u91cf\u5b9a\u65f6\u9012\u589e(\u59821ms\u9012\u589e1)\uff0c\u5728\u5916\u90e8\u4e2d\u65ad\u4e2d\u6e05\u96f6\n    \/\/\u5728\u4e3b\u7a0b\u5e8f\u4e2d\u5224\u65ad\uff0c\u8d85\u8fc7\u4e00\u5b9a\u503c\u65f6\u8ba4\u4e3aPWM\u5360\u7a7a\u6bd4\u4e3a0%\u6216100%\n    pwm_time_out = 0;\n\n    return;\n}<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u6ce8\uff1a\u4f7f\u7528\u4e2d\u65ad\u65b9\u5f0f\uff0c\u5219\u5360\u7a7a\u6bd4\u8ba1\u7b97\u4e0d\u5efa\u8bae\u653e\u5728\u4e2d\u65ad\u4e2d\u5904\u7406\uff1b\u540c\u65f6\uff0c\u4e3a\u4e86\u4fdd\u8bc1\u5360\u7a7a\u6bd4\u7684\u51c6\u786e\u6027\uff0c\u53ef\u4ee5\u8fde\u7eed2-3\u6b21\u8ba1\u7b97\u7ed3\u679c\u4e00\u81f4\u65f6\uff0c\u518d\u786e\u5b9a\u5f53\u524d\u5360\u7a7a\u6bd4\u7684\u7ed3\u679c\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>3. MCU\u6355\u83b7\u65b9\u5f0f<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u91c7\u7528\u6355\u83b7\u65b9\u5f0f\u7684\u524d\u63d0\u662fMCU\u652f\u6301\u6355\u83b7\u529f\u80fd\u3002\u5f53\u524d\u90e8\u5206\u5382\u5bb6\u63a8\u51fa\u768451\u5185\u6838\u5355\u7247\u673a\uff0c\u4f1a\u5305\u542b\u4e00\u4e2a\u5b9a\u65f6\u56682\uff0c\u5176\u62e5\u6709\u6355\u83b7\u529f\u80fd\uff1b\u6216\u8005\u91c7\u752832\u4f4d\u5355\u7247\u673a\uff0c\u4e00\u822c\u90fd\u5e26\u6709\u6355\u83b7\u529f\u80fd\u3002\u6355\u83b7\u7684\u539f\u7406\u5f88\u7b80\u5355\uff0c\u5f53\u4e0a\u5347\u6cbf\u6216\u4e0b\u964d\u6cbf\u6765\u4e34\u65f6\uff0cMCU\u786c\u4ef6\u5c06\u5b9a\u65f6\u5668\/\u8ba1\u6570\u5668\u7684\u503c\u4fdd\u5b58\u5728\u4e00\u4e2a\u5f71\u5b50\u5bc4\u5b58\u5668\u4e2d\uff0c\u5e76\u4ea7\u751f\u6355\u83b7\u4e2d\u65ad\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u901a\u8fc7\u56fa\u5b9a\u6bcf\u6b21\u4e0a\u5347\/\u4e0b\u964d\u6cbf\u7684\u8ba1\u6570\u5668\u503c\uff0c\u76f8\u51cf\u5373\u53ef\u5206\u522b\u5f97\u51fa\u9ad8\u7535\u5e73\u503c\u548c\u4f4e\u7535\u5e73\u503c\uff0c\u4ece\u800c\u8ba1\u7b97\u51fa\u5360\u7a7a\u6bd4\u3002<img data-recalc-dims=\"1\" decoding=\"async\" src=\"https:\/\/i0.wp.com\/mouser.eetrend.com\/files\/2020-11\/%E5%8D%9A%E5%AE%A2\/100058870-112761-1.png?w=640\" alt=\"\u201c\u201d\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e0b\u9762\u4ee5\u67d0\u989751\u5185\u6838\u7684MCU\u4e3a\u4f8b\uff0c\u63d0\u4f9b\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">unsigned int pwm_fall = 0, pwm_rise = 0;\n\nvolatile unsigned int pwm_H;\nvolatile unsigned int pwm_L;\n\nvolatile unsigned char pwm_time_out;\n\/\/------------------------------------------------------------\nvoid T2_interrupt(void) interrupt 5          \/\/\u5b9a\u65f6\u56682\u4e2d\u65ad;\n{\n\n    if (CCCON &amp; 0x02) \/\/CC1\u4e2d\u65ad\u6807\u5fd7\u4f4d\n    {\n        CCCON  &amp;= 0xFD; \/\/\u6e05\u9664\u4e2d\u65ad\u6807\u5fd7\n\n        if (PWM_IN())   \/\/\u4e0a\u5347\u6cbf\u89e6\u53d1\n        {\n            pwm_rise = CC1;     \/\/\u83b7\u53d6\u6355\u83b7\u5bc4\u5b58\u5668\u4e2d\u7684\u503c\n            pwm_L = pwm_rise - pwm_fall;\n        }\n        else\n        {\n            pwm_fall = CC1;     \/\/\u83b7\u53d6\u6355\u83b7\u5bc4\u5b58\u5668\u4e2d\u7684\u503c\n            pwm_H = pwm_fall - pwm_rise;\n        }\n\n        \/\/\u8be5\u53d8\u91cf\u5b9a\u65f6\u9012\u589e(\u59821ms\u9012\u589e1)\uff0c\u5728\u5916\u90e8\u4e2d\u65ad\u4e2d\u6e05\u96f6\n        \/\/\u5728\u4e3b\u7a0b\u5e8f\u4e2d\u5224\u65ad\uff0c\u8d85\u8fc7\u4e00\u5b9a\u503c\u65f6\u8ba4\u4e3aPWM\u5360\u7a7a\u6bd4\u4e3a0%\u6216100%\n        pwm_time_out = 0;\n    }\n}<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u6ce8\uff1a pwm_rise\/pwm_fall\/pwm_L\/pwm_H\u90fd\u5fc5\u987b\u4f7f\u7528\u65e0\u7b26\u53f7\u6570\uff0c\u5426\u5219\u76f8\u51cf\u65f6\u53ef\u80fd\u5f97\u5230\u9519\u8bef\u7684\u503c\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u603b\u7ed3<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u65b9\u5f0f\u4e00\uff1a\u4efb\u4f55\u5355\u7247\u673a\u90fd\u53ef\u4ee5\u5b9e\u73b0\uff0c\u4f46\u662f\u963b\u585e\u65b9\u5f0f\u4f1a\u4f7f\u7cfb\u7edf\u7684\u5b9e\u65f6\u6027\u53d8\u5dee\uff1b<br>\u65b9\u5f0f\u4e8c\uff1a\u5728\u4f7f\u7528\u65f6\uff0c\u9700\u8981\u4fdd\u8bc1\u5916\u90e8\u4e2d\u65ad\u7684\u6700\u9ad8\u4f18\u5148\u7ea7\uff0c\u4e0d\u53ef\u4ee5\u88ab\u5176\u4ed6\u4e2d\u65ad\u6253\u65ad\uff0c\u4ee5\u4fdd\u8bc1\u5176\u51c6\u786e\u6027\uff1b<br>\u65b9\u5f0f\u4e09\uff1a\u7684\u7a33\u5b9a\u6027\u548c\u51c6\u786e\u6027\u90fd\u8f83\u9ad8\uff0c\u4f46\u662f\u9700\u8981MCU\u786c\u4ef6\u652f\u6301\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u7248\u6743\u58f0\u660e\uff1a\u672c\u6587\u4e3a\u535a\u4e3b\u539f\u521b\u6587\u7ae0\uff0c\u9075\u5faa CC 4.0 BY-SA \u7248\u6743\u534f\u8bae\uff0c\u8f6c\u8f7d\u8bf7\u9644\u4e0a\u539f\u6587\u51fa\u5904\u94fe\u63a5\u548c\u672c\u58f0\u660e\u3002<br>\u672c\u6587\u94fe\u63a5\uff1a<a href=\"https:\/\/blog.csdn.net\/crazy_kismet\/article\/details\/102756206\">https:\/\/blog.csdn.net\/crazy_kismet\/article\/details\/102756206<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u672c\u6587\u8f6c\u8f7d\u81ea\uff1aCSDN\u535a\u5ba2\uff08\u535a\u4e3b\uff1afreeze chen\uff09<br>\u514d\u8d23\u58f0\u660e\uff1a\u672c\u6587\u4e3a\u8f6c\u8f7d\u6587\u7ae0\uff0c\u8f6c\u8f7d\u6b64\u6587\u76ee\u7684\u5728\u4e8e\u4f20\u9012\u66f4\u591a\u4fe1\u606f\uff0c\u7248\u6743\u5f52\u539f\u4f5c\u8005\u6240\u6709\u3002\u672c\u6587\u6240\u7528\u89c6\u9891\u3001\u56fe\u7247\u3001\u6587\u5b57\u5982\u6d89\u53ca\u4f5c\u54c1\u7248\u6743\u95ee\u9898\uff0c\u8bf7\u8054\u7cfb\u5c0f\u7f16\u8fdb\u884c\u5904\u7406\uff08\u8054\u7cfb\u90ae\u7bb1\uff1a<a href=\"mailto:cathy@eetrend.com\">cathy@eetrend.com<\/a>\uff09\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>cathy&nbsp;&#8212; \u5468\u56db, 11\/19\/2020 &#8211; 13:57 PWM(Pul &hellip; <\/p>\n<p class=\"link-more\"><a href=\"https:\/\/wp.ytdx.cc\/index.php\/2023\/01\/07\/%e5%8d%95%e7%89%87%e6%9c%ba%e6%b5%8b%e9%87%8fpwm%e5%8d%a0%e7%a9%ba%e6%af%94%e7%9a%84%e4%b8%89%e7%a7%8d%e6%96%b9%e6%b3%95\/\" class=\"more-link\">\u7ee7\u7eed\u9605\u8bfb<span class=\"screen-reader-text\">\u201c\u5355\u7247\u673a\u6d4b\u91cfPWM\u5360\u7a7a\u6bd4\u7684\u4e09\u79cd\u65b9\u6cd5\u201d<\/span><\/a><\/p>\n","protected":false},"author":1,"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-156","post","type-post","status-publish","format-standard","hentry","category-date","entry"],"jetpack_featured_media_url":"","jetpack-related-posts":[],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/wp.ytdx.cc\/index.php\/wp-json\/wp\/v2\/posts\/156","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wp.ytdx.cc\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wp.ytdx.cc\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wp.ytdx.cc\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/wp.ytdx.cc\/index.php\/wp-json\/wp\/v2\/comments?post=156"}],"version-history":[{"count":1,"href":"https:\/\/wp.ytdx.cc\/index.php\/wp-json\/wp\/v2\/posts\/156\/revisions"}],"predecessor-version":[{"id":157,"href":"https:\/\/wp.ytdx.cc\/index.php\/wp-json\/wp\/v2\/posts\/156\/revisions\/157"}],"wp:attachment":[{"href":"https:\/\/wp.ytdx.cc\/index.php\/wp-json\/wp\/v2\/media?parent=156"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wp.ytdx.cc\/index.php\/wp-json\/wp\/v2\/categories?post=156"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wp.ytdx.cc\/index.php\/wp-json\/wp\/v2\/tags?post=156"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}