{"id":2961,"date":"2020-03-10T09:10:24","date_gmt":"2020-03-10T09:10:24","guid":{"rendered":""},"modified":"2020-03-10T17:10:47","modified_gmt":"2020-03-10T09:10:47","slug":"%e5%8d%95%e4%b8%aa%e5%ae%9a%e6%97%b6%e5%99%a8%e5%ae%9e%e7%8e%b0%e5%a4%9a%e7%a7%8d%e5%ae%9a%e6%97%b6%e5%ba%94%e7%94%a8%e7%9a%84%e8%a7%a3%e5%86%b3%e6%96%b9%e6%a1%88","status":"publish","type":"post","link":"http:\/\/www.szryc.com\/?p=2961","title":{"rendered":"\u5355\u4e2a\u5b9a\u65f6\u5668\u5b9e\u73b0\u591a\u79cd\u5b9a\u65f6\u5e94\u7528\u7684\u89e3\u51b3\u65b9\u6848"},"content":{"rendered":"

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\n\t <\/div>\n

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\n\t\u4e00<\/b><\/p>\n

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\n\t\u4e8c<\/strong><\/p>\n

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\n\t\u786c\u4ef6\u5b9a\u65f6\u5668\u7684\u6570\u91cf\u8fdc\u8fdc\u5c11\u4e8e\u5b9a\u65f6\u5e94\u7528\u7684\u6570\u91cf\uff0c\u663e\u7136\u65e0\u6cd5\u4e3a\u6bcf\u4e00\u4e2a\u5b9a\u65f6\u5e94\u7528\u5355\u72ec\u5206\u914d\u4e00\u4e2a\u786c\u4ef6\u5b9a\u65f6\u5668\u3002\u672c\u6765\u4e00\u4e2a\u841d\u535c\u4e00\u4e2a\u5751\u6700\u597d\u529e\uff0c\u73b0\u5728\u8d44\u6e90\u4e0d\u591f\u600e\u4e48\u529e\uff1f<\/p>\n

\n\t\u4e0d\u624d\u5c31\u4e0d\u5356\u5173\u5b50\u4e86\uff0c\u65b9\u6848\u5f53\u7136\u662f\u7528\u8f6f\u4ef6\u7684\u6709\u4f59\u5f25\u8865\u786c\u4ef6\u7684\u4e0d\u8db3\u4e86\u3002<\/p>\n

\n\t\u4e3a\u4e86\u5404\u4e2a\u5b9a\u65f6\u5e94\u7528\u7684\u8d77\u70b9\u76f8\u540c\u3001\u6b65\u8c03\u4e00\u81f4\uff0c\u540c\u65f6\u4e3a\u4e86\u7f16\u7a0b\u7684\u7edf\u4e00\uff0c\u6700\u597d\u7684\u65b9\u5f0f\u4fbf\u662f\u5728\u5355\u4e2a\u786c\u4ef6\u5b9a\u65f6\u5668\u7684\u57fa\u7840\u4e0a\u6a21\u62df\u5b9e\u73b0\u591a\u4e2a\u8f6f\u4ef6\u5b9a\u65f6\u5668\uff0c\u4ee5\u524d\u53f0\u786c\u4ef6\u5b9a\u65f6\u5668\u4e2d\u65ad\u670d\u52a1\u7a0b\u5e8f\u548c\u540e\u53f0\u8f6f\u4ef6\u5b9a\u65f6\u5668\u7ba1\u7406\u7a0b\u5e8f\u76f8\u7ed3\u5408\uff0c\u5b9e\u73b0\u5355\u6b21\u5b9a\u65f6\u3001\u591a\u6b21\u5b9a\u65f6\u548c\u5faa\u73af\u5b9a\u65f6\u5e94\u7528\u3002<\/p>\n

\n\t\u4e09<\/strong><\/p>\n

\n\t\u4e0d\u624d\u4e0d\u5c51\u85cf\u79c1\uff0c\u4e0b\u9762\u5c31\u628a\u5177\u4f53\u7684\u65b9\u6848\u8bbe\u8ba1\u7ed9\u5404\u4f4d\u770b\u5b98\u4eec\u5206\u4eab\u51fa\u6765\u3002<\/p>\n

\n\t\u5148\u8ddf\u5927\u5bb6\u5efa\u7acb\u8fd9\u4e48\u4e00\u4e2a\u6982\u5ff5\uff1a<\/p>\n

\n\t\u7a0b\u5e8f\u8bbe\u8ba1=\u6570\u636e\u7ed3\u6784+\u8fd0\u7b97<\/p>\n

\n\t\u5177\u4f53\u5230\u8fd9\u91cc\uff0c\u6570\u636e\u7ed3\u6784\u4fbf\u662f“\u8f6f\u4ef6\u5b9a\u65f6\u5668”\uff0c\u8fd0\u7b97\u4fbf\u662f\u4e2d\u65ad\u670d\u52a1\u7a0b\u5e8f\uff08ISR\uff09\u548c\u5b9a\u65f6\u7ba1\u7406\u7a0b\u5e8f\u3002<\/p>\n

\n\t\u8f6f\u4ef6\u5b9a\u65f6\u5668\u662f“\u7ed3\u6784\u4f53”\u5f62\u5f0f\uff0c\u6839\u636e\u5b9a\u65f6\u5e94\u7528\u7684\u7279\u70b9\u53ca\u5206\u7c7b\uff0c\u8bbe\u8ba1\u4e00\u79cd\u6db5\u76d6\u5355\u6b21\u5b9a\u65f6\u3001\u591a\u6b21\u5b9a\u65f6\u548c\u5faa\u73af\u5b9a\u65f6\u4e09\u79cd\u7c7b\u578b\u5b9a\u65f6\u7684\u8f6f\u4ef6\u5b9a\u65f6\u5668\u8282\u70b9\u7684\u6570\u636e\u7ed3\u6784\uff0c\u4f7f\u7528\u4e00\u4e2a\u9759\u6001\u5206\u914d\u7684\u8f6f\u4ef6\u5b9a\u65f6\u5668\u8282\u70b9\u6570\u7ec4\u6765\u5b9a\u4e49\u6240\u6709\u7684\u5b9a\u65f6\u4efb\u52a1\u3002<\/p>\n

\n\t\u8fd9\u4e2a\u7ed3\u6784\u4f53\u6709\u4ee5\u4e0b\u51e0\u4e2a\u6210\u5458\u53d8\u91cf\uff1a\u8f6f\u4ef6\u5b9a\u65f6\u5668ID\u3001\u6fc0\u6d3b\u72b6\u6001\u3001\u5b9a\u65f6\u6b21\u6570\u3001\u8d85\u65f6\u6b21\u6570, \u5faa\u73af\u6807\u8bc6,\u5b9a\u65f6\u503c, \u8ba1\u65f6<\/u>\u503c, \u56de\u8c03\u51fd\u6570\uff0c\u8fd9\u4e9b\u6210\u5458\u53d8\u91cf\u7684\u610f\u4e49\u5927\u591a\u6570\u53ef\u4ee5“\u987e\u540d\u601d\u4e49”\uff0c\u8fd9\u91cc\u4fbf\u4e0d\u8d58\u8ff0\u4e86\u3002<\/p>\n

\n\t\u4e0b\u9762\u5f00\u59cb\u53e8ISR\u548c\u5b9a\u65f6\u7ba1\u7406\u7a0b\u5e8f\u3002<\/p>\n

\n\tISR\u548c\u5b9a\u65f6\u7ba1\u7406\u7a0b\u5e8f\u662f\u9760\u4e00\u4e2a\u53eb“\u76f8\u5bf9\u8ba1\u65f6\u65f6\u95f4”\uff08\u8bb0\u4e3aTi<\/u>mer_TIcked\uff09\u7684\u4fe1\u4f7f\u626d\u7ed3\u5728\u4e00\u8d77\u7684\uff0c\u5b83\u8868\u793a\u672a\u88ab\u8f6f\u4ef6\u5b9a\u65f6\u5668\u8ba1\u65f6\u7684\u65f6\u95f4\u3002<\/p>\n

\n\tMCU\u4e0a\u7535\u521d\u59cb\u5316\u65f6\uff0c\u8bbe\u7f6e\u786c\u4ef6\u5b9a\u65f6\u5668\u7684\u4e2d\u65ad\u5468\u671f\u4e3aT\u5e76\u4f7f\u80fd\u4e2d\u65ad\uff0c\u786c\u4ef6\u5b9a\u65f6\u5668\u4ee5T\u4e3a\u65f6\u95f4\u95f4\u9694\uff0c\u89e6\u53d1MCU\u6267\u884cISR\u3002\u5728ISR\u4e2d\uff0c\u7d2f\u52a0\u76f8\u5bf9\u8ba1\u65f6\u65f6\u95f4\u7684\u6570\u503c\uff0c\u7d2f\u52a0\u503c\u4e3aT\uff0c\u5373TImer_TIcked += T\u3002<\/p>\n

\n\t\u5b9a\u65f6\u5668\u7ba1\u7406\u7a0b\u5e8f\u5b8c\u6210\u5bf9\u8f6f\u4ef6\u5b9a\u65f6\u5668\u8282\u70b9\u6570\u7ec4\u7684\u64cd\u4f5c\u540e\uff0c\u6e05\u96f6\u76f8\u5bf9\u8ba1\u65f6\u65f6\u95f4\uff0c\u6240\u4ee5\uff0c\u53ea\u8981\u7a0b\u5e8f\u8bbe\u8ba1\u5730\u5408\u7406\uff0cTImer_ticked\u4e0d\u4f1a\u5f88\u5927\uff0c\u8d85\u8fc720ms\u57fa\u672c\u53ef\u4ee5\u786e\u5b9a\u60a8\u7684\u7a0b\u5e8f\u8bbe\u8ba1\u6709\u6bdb\u75c5\u4e86\u3002<\/p>\n

\n\t\u603b\u4e4b\uff0c\u901a\u8fc7\u76f8\u5bf9\u8ba1\u65f6\u65f6\u95f4\uff0c\u4fdd\u8bc1\u4e86\u6240\u6709\u8f6f\u4ef6\u5b9a\u65f6\u5668\u8282\u70b9\u7684\u540c\u6b65\u8ba1\u65f6\u548c\u51c6\u786e\u8ba1\u65f6\u3002<\/p>\n

\n\tISR\u5f53\u7136\u7b80\u5355\uff0c\u63a5\u4e0b\u6765\u4fbf\u662f\u7a0d\u5fae\u590d\u6742\u4e00\u4e9b\u7684\u5b9a\u65f6\u7ba1\u7406\u7a0b\u5e8f\u4e86\u3002<\/p>\n

\n\t\u5b9a\u65f6\u7ba1\u7406\u7a0b\u5e8f\u662f\u7ba1\u7406\u6240\u6709\u5b9a\u65f6\u5e94\u7528\u7684\uff0c\u6bcf\u4e2a\u5b9a\u65f6\u5e94\u7528\u5bf9\u5e94\u4e0a\u8ff0\u7ed3\u6784\u4f53\u6570\u7ec4\u91cc\u7684\u4e00\u4e2a\u6210\u5458\uff0c\u53ef\u4ee5\u4ee5“\u8282\u70b9”\u6765\u79f0\u547c\u5b83\u3002<\/p>\n

\n\t\u5b9a\u65f6\u7ba1\u7406\u7a0b\u5e8f\u662f\u5728\u540e\u53f0\u5faa\u73af\u6267\u884c\u7684\uff0c\u5b83\u6bcf\u6b21\u90fd\u4f1a\u68c0\u67e5\u6240\u6709\u5b9a\u65f6\u5668\u8282\u70b9\u7684\u72b6\u6001\uff0c\u5982\u679c\u8be5\u5b9a\u65f6\u5668\u8282\u70b9\u5904\u4e8e\u7a7a\u95f2\u72b6\u6001\uff0c\u5b83\u5c31\u8df3\u8fc7\u5b83\u4e0d\u505a\u5904\u7406\uff0c\u5982\u679c\u5904\u4e8e\u6fc0\u6d3b\u72b6\u6001\uff0c\u5b83\u5c31\u589e\u52a0\u8be5\u5b9a\u65f6\u5668\u8282\u70b9\u7684\u8ba1\u65f6\u503c\uff08\u7d2f\u52a0\u503c\u4e3aTimer_ticked\uff09\u3002<\/p>\n

\n\t\u7136\u540e\u5224\u65ad\u8ba1\u65f6\u503c\u662f\u5426\u8d85\u8fc7\u4e86\u6240\u8bbe\u5b9a\u7684\u5b9a\u65f6\u503c\u3002\u5982\u679c\u6ca1\u8d85\u8fc7\uff0c\u90a3\u5c31\u8df3\u8fc7\u5b83\u4e0d\u505a\u5904\u7406\uff0c\u5982\u679c\u8d85\u8fc7\u4e86\uff0c\u5148\u8c03\u7528\u5b83\u7684\u5b9a\u65f6\u56de\u8c03\u51fd\u6570\uff0c\u7136\u540e\u5224\u65ad\u8be5\u8282\u70b9\u662f\u5426\u4e3a\u5faa\u73af\u5b9a\u65f6\u5668\u3002<\/p>\n

\n\t\u5982\u679c\u4e0d\u662f\u5faa\u73af\u5b9a\u65f6\uff0c\u8df3\u8fc7\u5b83\u4e0d\u505a\u5904\u7406\uff0c\u5982\u679c\u662f\uff0c\u5219\u9700\u8981\u91cd\u542f\u672c\u5b9a\u65f6\u5668\u8282\u70b9\u3002<\/p>\n

\n\t\u6309\u7167\u8fd9\u79cd\u65b9\u6cd5\u5904\u7406\u5b8c\u6240\u6709\u5b9a\u65f6\u5668\u8282\u70b9\u4e4b\u540e\uff0c\u4fbf\u53ef\u4ee5\u9000\u51fa\u672c\u6b21\u5b9a\u65f6\u7ba1\u7406\u7a0b\u5e8f\u4e86\u3002<\/p>\n

\n\t\u8bb2\u5230\u8fd9\u91cc\uff0c\u5404\u4f4d\u770b\u5b98\u5e94\u8be5\u770b\u660e\u767d\u4e86\u5427.<\/p>\n

\n\t\u56db<\/strong><\/p>\n

\n\t\u5c0f\u7c73\u624b\u673a\u7269\u7f8e\u4ef7\u5ec9\uff0c\u6ca1\u6765\u7531\u5730\u62c5\u4e0a\u4e86“\u4f4e\u4ef7\u8bef\u56fd”\u7684\u9a82\u540d\u3002\u56fd\u5916\u7684MCU\u5382\u5546\u5012\u662f\u9e21\u8d3c\u5f97\u5f88\uff0c\u4e00\u5206\u94b1\u4e00\u5206\u8d27\uff0c\u8d44\u6e90\u4e30\u5bcc\u4e00\u70b9\uff0c\u4ef7\u683c\u5c31\u6da8\u4e0a\u53bb\u4e86\uff0c\u8d64\u679c\u679c\u7684\u8d44\u672c\u5bb6\u5634\u8138\u3002<\/p>\n

\n\t\u6240\u4ee5\uff0c\u5728\u6210\u672c\u7684\u7ea6\u675f\u4ee5\u53ca\u9886\u5bfc\u7684\u5a01\u4e25\u4e0b\uff0c\u5728\u4e00\u4e2a\u8d44\u6e90\u53d7\u9650\u7684MCU\u4e0a\u6363\u9f13\u4ee3\u7801\u6210\u4e86\u5d4c\u5165\u5f0f\u8f6f\u4ef6\u5de5\u7a0b\u5e08\u65e5\u5e38\u5de5\u4f5c\u7684\u5e38\u6001\u3002\u4e0d\u8fc7\uff0c\u4e0d\u8981\u62b1\u6028\uff0c\u4e5f\u4e0d\u7528\u5fe7\u8651\u548c\u7126\u5fc3\uff0c\u529e\u6cd5\u603b\u6bd4\u56f0\u96be\u591a\u3002<\/p>\n

\n\t\u603b\u7684\u539f\u5219\u5c31\u662f\uff1a\u786c\u4ef6\u4e0d\u591f\uff0c\u8f6f\u4ef6\u6765\u51d1\u3002<\/p>\n

\n\t\u6bd4\u5982\u5bf9\u4e8e\u591a\u4e2a\u5b9a\u65f6\u5e94\u7528\uff0c\u5355\u5b9a\u65f6\u5668\u5c31\u8db3\u591f\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"

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