{"id":72189,"date":"2026-02-05T03:49:43","date_gmt":"2026-02-04T19:49:43","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/72189.html"},"modified":"2026-02-05T03:49:43","modified_gmt":"2026-02-04T19:49:43","slug":"%e8%93%9d%e7%89%99%e6%a8%a1%e5%9d%97hc-05%e3%80%81at%e5%91%bd%e4%bb%a4%e3%80%81%e6%89%8b%e6%9c%ba%e9%80%9a%e8%bf%87%e8%93%9d%e7%89%99%e6%8e%a7%e5%88%b6led%e7%81%af","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/72189.html","title":{"rendered":"\u84dd\u7259\u6a21\u5757HC-05\u3001AT\u547d\u4ee4\u3001\u624b\u673a\u901a\u8fc7\u84dd\u7259\u63a7\u5236LED\u706f"},"content":{"rendered":"<\/p>\n<h4>\u76ee\u5f55<\/h4>\n<ul>\n<li>\u84dd\u7259\u6a21\u5757HC-05<\/li>\n<li>1. \u786c\u4ef6\u63a5\u7ebf<\/li>\n<li>2. AT\u8bbe\u7f6e\u5de5\u4f5c\u6a21\u5f0f<\/li>\n<li>3. \u57fa\u672c\u914d\u7f6e (\u6240\u6709AT\u547d\u4ee4\u540e\u5fc5\u987b\u52a0\u4e0a\u56de\u8f66\u6362\u884c\u7b26 \\\\r\\\\n)<\/li>\n<li>4. AT\u547d\u4ee4\u7684\u8be6\u7ec6\u8bf4\u660e<\/li>\n<li>5. \u624b\u673a\u901a\u8fc7\u84dd\u7259\u63a7\u5236LED\u706f<\/li>\n<\/ul>\n<hr \/>\n<h2>\u84dd\u7259\u6a21\u5757HC-05<\/h2>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/02\/20260204194942-6983a2d64ba7d.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<h2>1. \u786c\u4ef6\u63a5\u7ebf<\/h2>\n<table>\n<tr>\u6807\u53f7PIN\u5f15\u811a\u8bf4\u660e<\/tr>\n<tbody>\n<tr>\n<td>1<\/td>\n<td>START<\/td>\n<td>\u72b6\u6001\u5f15\u51fa\u5f15\u811a&#xff08;\u672a\u8fde\u63a5\u65f6\u8f93\u51fa\u4f4e\u7535\u5e73&#xff0c;\u8fde\u63a5\u65f6\u8f93\u51fa\u9ad8\u7535\u5e73&#xff09;<\/td>\n<\/tr>\n<tr>\n<td>2<\/td>\n<td>RXE<\/td>\n<td>\u63a5\u6536\u7aef<\/td>\n<\/tr>\n<tr>\n<td>3<\/td>\n<td>TXE<\/td>\n<td>\u53d1\u9001\u7aef<\/td>\n<\/tr>\n<tr>\n<td>4<\/td>\n<td>GND<\/td>\n<td>\u6a21\u5757\u4f9b\u7535\u8d1f\u6781<\/td>\n<\/tr>\n<tr>\n<td>5<\/td>\n<td>VCC<\/td>\n<td>\u6a21\u5757\u4f9b\u7535\u6b63\u6781<\/td>\n<\/tr>\n<tr>\n<td>6<\/td>\n<td>EN<\/td>\n<td>\u4f7f\u80fd\u7aef&#xff0c;\u9700\u8981\u8fdb\u5165\u547d\u4ee4\u6a21\u5f0f\u65f6\u63a53.3V<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u8bf4\u660e&#xff1a; START&#xff1a;\u7528\u4e8e\u6307\u793a\u6a21\u5757\u662f\u5426\u5904\u4e8e\u8fde\u63a5\u72b6\u6001\u3002\u672a\u8fde\u63a5\u65f6\u4e3a\u4f4e\u7535\u5e73&#xff0c;\u8fde\u63a5\u540e\u53d8\u4e3a\u9ad8\u7535\u5e73\u3002 RXE \/ TXE&#xff1a;\u6807\u51c6\u4e32\u53e3\u901a\u4fe1\u63a5\u53e3&#xff0c;\u5206\u522b\u5bf9\u5e94\u63a5\u6536\u548c\u53d1\u9001\u6570\u636e\u3002 EN&#xff1a;\u4f7f\u80fd\u63a7\u5236\u5f15\u811a&#xff0c;\u5f53\u9700\u8981\u8fdb\u5165\u201c\u547d\u4ee4\u6a21\u5f0f\u201d\u65f6\u9700\u62c9\u9ad8\u81f3 3.3V\u3002<\/p>\n<h2>2. AT\u8bbe\u7f6e\u5de5\u4f5c\u6a21\u5f0f<\/h2>\n<p>1\u3001\u81ea\u52a8\u8fde\u63a5\u6a21\u5f0f&#xff0c;\u53c8\u79f0\u4e3a\u900f\u4f20\u6a21\u5f0f\u3002 2\u3001AT \u6a21\u5f0f&#xff0c;\u7528\u4e8e\u901a\u8fc7\u4e32\u53e3\u53d1\u9001 AT \u547d\u4ee4\u914d\u7f6e\u6a21\u5757\u53c2\u6570 (\u5982\u914d\u5bf9\u3001\u540d\u79f0\u3001\u6ce2\u7279\u7387\u7b49)\u3002(\u84dd\u7259\u6a21\u5757\u901a\u8fc7\u8f6c\u4e32\u53e3\u6a21\u5757\u63a5\u5230\u7535\u8111&#xff0c;\u4e32\u53e3\u8c03\u8bd5\u52a9\u624b\u53d1\u9001 AT&#043; \u6307\u4ee4\u4e3a AT\u6a21\u5f0f)<\/p>\n<p>\u8fdb\u5165 AT \u6a21\u5f0f\u7684\u4e24\u79cd\u65b9\u6cd5&#xff1a; 1\u3001\u6309\u4f4f\u5f15\u811a\u6216 EN \u5f15\u811a\u62c9\u9ad8 (\u63a5\u5165 3.3V)&#xff0c;\u6b64\u65f6\u706f\u662f\u6162\u95ea&#xff0c;\u8fdb\u5165 AT \u6a21\u5f0f&#xff0c;\u6ce2\u7279\u7387\u9ed8\u8ba4\u662f 38400&#xff1b; \u8fd9\u4e2a\u6a21\u5f0f\u6211\u4eec\u53eb\u505a\u539f\u59cb\u6a21\u5f0f&#xff0c;\u539f\u59cb\u6a21\u5f0f\u4e0b\u4e00\u76f4\u5904\u4e8e AT \u547d\u4ee4\u6a21\u5f0f\u72b6\u6001\u3002<\/p>\n<p>2\u3001HC-05 \u4e0a\u7535\u5f00\u673a&#xff0c;\u7ea2\u706f\u5feb\u95ea&#xff0c;\u6309\u4f4f\u6309\u952e\u6216 EN \u5f15\u811a\u62c9\u9ad8 (\u63a5\u5165 3.3V)&#xff0c;HC-05 \u8fdb\u5165 AT \u547d\u4ee4\u6a21\u5f0f&#xff0c;\u9ed8\u8ba4\u6ce2\u7279\u7387\u662f 9600 (\u66f4\u5e38\u7528)&#xff1b; \u8fd9\u79cd\u6a21\u5f0f\u4e0b\u662f\u6b63\u5e38\u6a21\u5f0f&#xff0c;\u6b63\u5e38\u6a21\u5f0f\u4e0b\u53ea\u6709\u6309\u4f4f\u6309\u952e\u6216\u62c9\u9ad8 EN \u5f15\u811a\u624d\u5904\u4e8e AT \u547d\u4ee4\u72b6\u6001\u3002<\/p>\n<p>\u6ce8\u610f&#xff1a;\u5982\u679c\u6ce2\u7279\u7387\u6ca1\u6709\u8bbe\u7f6e\u6b63\u786e&#xff0c;AT \u547d\u4ee4\u662f\u6267\u884c\u65e0\u6548\u7684\u3002<\/p>\n<h2>3. \u57fa\u672c\u914d\u7f6e (\u6240\u6709AT\u547d\u4ee4\u540e\u5fc5\u987b\u52a0\u4e0a\u56de\u8f66\u6362\u884c\u7b26 \\\\r\\\\n)<\/h2>\n<p>\u6240\u6709 AT \u547d\u4ee4\u540e\u5fc5\u987b\u52a0\u4e0a\u56de\u8f66\u6362\u884c\u7b26 \\\\r\\\\n (\u5373 ASCII \u7801 0x0D 0x0A)&#xff0c;\u5426\u5219\u6a21\u5757\u4e0d\u4f1a\u6267\u884c\u3002<\/p>\n<p>\u6b63\u5e38\u6a21\u5f0f\u4e0b\u662f 9600&#xff0c;AT \u6a21\u5f0f\u6ce2\u7279\u7387\u56fa\u5b9a\u4e3a 38400&#xff0c;8 \u4f4d\u6570\u636e\u4f4d&#xff0c;1 \u4f4d\u505c\u6b62\u4f4d&#xff0c;\u65e0\u5947\u5076\u6821\u9a8c\u7684\u901a\u4fe1\u65b9\u5f0f\u3002<\/p>\n<ul>\n<li>\u53d1\u9001 AT &#043; \\\\r\\\\n&#xff0c;\u56de\u590d OK<\/li>\n<li>\u53d1\u9001 AT&#043;UART? &#043; \\\\r\\\\n&#xff0c;\u56de\u590d &#043;UART9600,0,0<\/li>\n<li>\u53d1\u9001 AT&#043;UART&#061;115200,0,0 &#043; \\\\r\\\\n&#xff0c;\u5c06\u901a\u4fe1\u6ce2\u7279\u7387\u8bbe\u4e3a 115200&#xff0c;8 \u6570\u636e\u4f4d&#xff0c;1 \u505c\u6b62\u4f4d&#xff0c;\u65e0\u6821\u9a8c\u3002 \u56de\u590d OK<\/li>\n<\/ul>\n<p>\u2705 \u901a\u8fc7\u4e0a\u8ff0\u6b65\u9aa4\u6ce2\u7279\u7387\u5373\u914d\u7f6e\u6210\u529f\u3002<\/p>\n<ul>\n<li>\u53d1\u9001 AT&#043;NAME&#061;\u201cXXXX\u201d&#xff0c;\u4fee\u6539\u84dd\u7259\u6a21\u5757\u540d\u79f0\u4e3a XXXX<\/li>\n<li>\u53d1\u9001 AT&#043;ROLE&#061;0&#xff0c;\u84dd\u7259\u6a21\u5f0f\u5373\u4e3a\u4ece\u673a (Slave)&#xff0c;\u7528\u4e8e\u63a5\u6536\u8fde\u63a5; \u82e5\u8bbe\u4e3a 1 \u5219\u4e3a\u4e3b\u673a&#xff08;Master&#xff09;\u3002<\/li>\n<li>\u53d1\u9001 AT&#043;CMODE&#061;1&#xff0c;\u84dd\u7259\u8fde\u63a5\u6a21\u5f0f\u4e3a\u4efb\u610f\u5730\u5740\u8fde\u63a5\u6a21\u5f0f&#xff0c;\u4e5f\u5c31\u662f\u8bf4\u8be5\u6a21\u5757\u53ef\u4ee5\u88ab\u4efb\u610f\u84dd\u7259\u8bbe\u5907\u8fde\u63a5 (\u5e7f\u64ad\u6a21\u5f0f)&#xff0c;\u9002\u7528\u4e8e\u901a\u7528\u4e32\u53e3\u900f\u4f20\u573a\u666f\u3002<\/li>\n<li>\u53d1\u9001 AT&#043;PSWD&#061;1234&#xff0c;\u84dd\u7259\u914d\u5bf9\u5bc6\u7801\u4e3a 1234<\/li>\n<li>\u53d1\u9001 AT&#043;UART&#061;9600,0,0 ,\u84dd\u7259\u901a\u4fe1\u4e32\u53e3\u6ce2\u7279\u7387\u4e3a 9600&#xff0c;\u505c\u6b62\u4f4d1\u4f4d&#xff0c;\u65e0\u6821\u9a8c\u4f4d<\/li>\n<\/ul>\n<p>\u914d\u7f6e\u5b8c\u6210\u9700\u8981\u91cd\u542f\u4e00\u6b21<\/p>\n<h2>4. AT\u547d\u4ee4\u7684\u8be6\u7ec6\u8bf4\u660e<\/h2>\n<ul>\n<li>AT&#043;ROLE&#xff1a;\u8bbe\u7f6e\u4e3b\u4ece\u6a21\u5f0f\n<ul>\n<li>AT&#043;ROLE?&#xff1a;\u67e5\u8be2\u5f53\u524d\u4e3b\u4ece\u72b6\u6001<\/li>\n<li>AT&#043;ROLE&#061;1&#xff1a;\u8bbe\u7f6e\u4e3a\u4e3b\u673a&#xff08;Master&#xff09;<\/li>\n<li>AT&#043;ROLE&#061;0&#xff1a;\u8bbe\u7f6e\u4e3a\u4ece\u673a&#xff08;Slave&#xff09;<\/li>\n<li>AT&#043;ROLE&#061;2&#xff1a;\u8bbe\u7f6e\u4e3a\u56de\u73af\u89d2\u8272&#xff08;Slave-Loop&#xff09;&#xff0c;\u5373\u88ab\u52a8\u8fde\u63a5&#xff0c;\u63a5\u6536\u8fdc\u7a0b\u84dd\u7259\u4e3b\u8bbe\u5907\u6570\u636e\u5e76\u539f\u6837\u8fd4\u56de\u7ed9\u8fdc\u7a0b\u84dd\u7259\u3002<\/li>\n<\/ul>\n<\/li>\n<li>AT&#043;RESET&#xff1a;HC-05 \u590d\u4f4d<\/li>\n<li>AT&#043;VERSION?&#xff1a;\u83b7\u53d6 HC-05 \u7684\u8f6f\u4ef6\u7248\u672c\u53f7&#xff0c;\u53ea\u80fd\u83b7\u53d6&#xff0c;\u4e0d\u80fd\u4fee\u6539\u3002<\/li>\n<li>AT&#043;ORGL&#xff1a;\u6062\u590d\u51fa\u5382\u9ed8\u8ba4\u8bbe\u7f6e\u3002\u5f53\u6a21\u5757\u914d\u7f6e\u6df7\u4e71\u65f6&#xff0c;\u4f7f\u7528\u6b64\u547d\u4ee4\u53ef\u6062\u590d\u9ed8\u8ba4\u503c\u3002<\/li>\n<li>AT&#043;ADDR?&#xff1a;\u83b7\u53d6 HC-05 \u7684\u84dd\u7259\u5730\u5740\u7801&#xff0c;\u53ea\u80fd\u83b7\u53d6&#xff0c;\u4e0d\u80fd\u4fee\u6539\u3002<\/li>\n<li>AT&#043;NAME?&#xff1a;\u83b7\u53d6 HC-05 \u7684\u540d\u5b57&#xff1b;\n<ul>\n<li>AT&#043;NAME&#061;BSP-06&#xff1a;\u4fee\u6539\u6a21\u5757\u540d\u79f0\u4e3a BSP-06&#xff0c;\u5177\u4f53\u540d\u79f0\u53ef\u81ea\u884c\u4fee\u6539\u3002<\/li>\n<\/ul>\n<\/li>\n<li>AT&#043;CLASS?&#xff1a;\u8bbe\u7f6e\u6216\u67e5\u8be2\u8bbe\u5907\u7c7b\u578b&#xff0c;\u5c3d\u91cf\u4e0d\u8981\u4fee\u6539\u6b64\u53c2\u6570\u3002\u9ed8\u8ba4\u503c\u662f 1F00\u3002<\/li>\n<li>AT&#043;IAC?&#xff1a;\u67e5\u8be2\u6216\u8bbe\u7f6e\u67e5\u8be2\u8bbf\u95ee\u7801&#xff0c;\u9ed8\u8ba4\u662f 9E8B33&#xff0c;\u5efa\u8bae\u4e0d\u8981\u4fee\u6539\u3002<\/li>\n<li>AT&#043;PSWD?&#xff1a;\u67e5\u8be2\u6216\u8bbe\u7f6e\u914d\u5bf9\u5bc6\u7801\n<ul>\n<li>AT&#043;PSWD&#061;\u201c0000\u201d&#xff1a;\u8bbe\u7f6e\u914d\u5bf9\u5bc6\u7801\u4e3a \u201c0000\u201d&#xff0c;\u5bc6\u7801\u9700\u7528\u53cc\u5f15\u53f7\u5305\u56f4&#xff0c;\u4e14\u4e3a\u56db\u4f4d\u6570\u5b57\u3002<\/li>\n<\/ul>\n<\/li>\n<li>AT&#043;UART&#xff1a;\n<ul>\n<li>AT&#043;UART?&#xff1a;\u67e5\u8be2\u5f53\u524d\u6a21\u5757\u7684\u6ce2\u7279\u7387<\/li>\n<li>AT&#043;UART&#061;XXXX,0,0&#xff1a;\u8bbe\u7f6e\u6ce2\u7279\u7387&#xff08;\u5982 115200&#xff09;&#xff0c;\u53c2\u6570\u683c\u5f0f\u4e3a&#xff1a;\u6ce2\u7279\u7387, \u6570\u636e\u4f4d, \u505c\u6b62\u4f4d&#xff08;\u9ed8\u8ba4 8N1&#xff09;<\/li>\n<\/ul>\n<\/li>\n<li>AT&#043;CMODE&#xff1a;\n<ul>\n<li>AT&#043;CMODE?&#xff1a;\u67e5\u8be2\u5f53\u524d\u8fde\u63a5\u6a21\u5f0f<\/li>\n<li>AT&#043;CMODE&#061;0,1,2&#xff1a;\u6307\u5b9a\u84dd\u7259\u5730\u5740\u8fde\u63a5\u6a21\u5f0f\n<ul>\n<li>0&#xff1a;\u9ed8\u8ba4\u8fde\u63a5\u6a21\u5f0f&#xff08;\u7ed1\u5b9a\u5730\u5740\u8fde\u63a5&#xff09;<\/li>\n<li>1&#xff1a;\u4efb\u610f\u84dd\u7259\u5730\u5740\u8fde\u63a5\u6a21\u5f0f&#xff08;\u4e0d\u53d7\u7ed1\u5b9a\u5730\u5740\u9650\u5236&#xff09;<\/li>\n<li>2&#xff1a;\u56de\u73af\u89d2\u8272&#xff08;Slave-Loop&#xff09;<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li>AT&#043;BIND&#xff1a;\n<ul>\n<li>AT&#043;BIND?&#xff1a;\u67e5\u8be2\u5f53\u524d\u7ed1\u5b9a\u5730\u5740<\/li>\n<li>AT&#043;BIND&#061;NAP,UAP,LAP&#xff1a;\u7ed1\u5b9a\u6307\u5b9a\u8bbe\u5907&#xff08;NAP\u3001UAP\u3001LAP \u7528\u9017\u53f7\u5206\u9694&#xff09;<\/li>\n<\/ul>\n<\/li>\n<li>AT&#043;RMADD&#xff1a;\u4ece\u84dd\u7259\u914d\u5bf9\u5217\u8868\u4e2d\u5220\u9664\u6240\u6709\u5df2\u8ba4\u8bc1\u8bbe\u5907\u3002<\/li>\n<li>AT&#043;STATE?&#xff1a;\u83b7\u53d6\u84dd\u7259\u6a21\u5757\u5f53\u524d\u5de5\u4f5c\u72b6\u6001\u3002<\/li>\n<li>AT&#043;LINK&#061;NAP,UAP,LAP&#xff1a;\u4e0e\u8fdc\u7a0b\u84dd\u7259\u8bbe\u5907\u5efa\u7acb\u8fde\u63a5\u3002<\/li>\n<li>AT&#043;DISC&#xff1a;\u65ad\u5f00\u5f53\u524d\u8fde\u63a5\u3002<\/li>\n<li>AT&#043;RNAME? NAP, UAP, LAP&#xff1a;\u83b7\u53d6\u8fdc\u7a0b\u84dd\u7259\u8bbe\u5907\u7684\u540d\u79f0\u3002<\/li>\n<li>AT&#043;ADCN?&#xff1a;\u83b7\u53d6\u84dd\u7259\u914d\u5bf9\u5217\u8868\u4e2d\u5df2\u8ba4\u8bc1\u8bbe\u5907\u7684\u6570\u91cf\u3002<\/li>\n<li>AT&#043;MRAD?&#xff1a;\u83b7\u53d6\u6700\u8fd1\u4f7f\u7528\u8fc7\u7684\u84dd\u7259\u8ba4\u8bc1\u8bbe\u5907\u5730\u5740\u3002<\/li>\n<li>AT&#043;INQM&#061;\u8bbe\u7f6e\u67e5\u8be2\u6a21\u5f0f\n<ul>\n<li>AT&#043;INQM&#061;1, 9, 48 1&#xff1a;\u5e26 RSSI&#xff08;\u4fe1\u53f7\u5f3a\u5ea6&#xff09;\u6307\u793a 9&#xff1a;\u8d85\u8fc7 9 \u4e2a\u84dd\u7259\u8bbe\u5907\u54cd\u5e94\u65f6\u7ec8\u6b62\u67e5\u8be2 48&#xff1a;\u8bbe\u5b9a\u8d85\u65f6\u65f6\u95f4\u4e3a 48 * 1.28 &#061; 61.44 \u79d2 \u2705 \u8be5\u547d\u4ee4\u7528\u4e8e\u914d\u7f6e\u84dd\u7259\u626b\u63cf\u67e5\u8be2\u7684\u884c\u4e3a\u53c2\u6570\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h2>5. \u624b\u673a\u901a\u8fc7\u84dd\u7259\u63a7\u5236LED\u706f<\/h2>\n<ul>\n<li>\u84dd\u7259\u6a21\u5757 AT \u6a21\u5f0f\u57fa\u7840\u914d\u7f6e\n<ul>\n<li>\u84dd\u7259\u8fde\u63a5 ch340 \u6a21\u5757\u63a5\u7ebf TX\u3001RX\u3001VCC\u3001GND\u3001EN \u4e94\u5f15\u811a<\/li>\n<li>AT \u547d\u4ee4\u914d\u7f6e\u6ce2\u7279\u7387\u3001\u84dd\u7259\u540d\u79f0\u3001\u4ece\u6a21\u5f0f\u3001\u914d\u5bf9\u5bc6\u7801<\/li>\n<\/ul>\n<\/li>\n<li>\u84dd\u7259\u786c\u4ef6\u8fde\u63a5stm32\u5355\u7247\u673a TX\u3001RX\u3001VCC\u3001GND<\/li>\n<li>\u521d\u59cb\u5316\u84dd\u7259\u8fde\u63a5\u4e32\u53e3\u7684\u65f6\u949f\u3001\u5f15\u811a\u548c\u5916\u8bbe\u914d\u7f6e<\/li>\n<li>\u4e32\u53e3\u63a5\u6536\u4e2d\u65ad\u670d\u52a1\u51fd\u6570\u5b9e\u73b0\u6570\u636e\u7684\u63a5\u6536\u548c\u53d1\u9001 <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/02\/20260204194942-6983a2d67f5d0.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/> STM32F1xx\u624b\u518c\u7b2c120\u9875 <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/02\/20260204194942-6983a2d6978fe.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/> USART2 \u8d1f\u8d23\u63a5\u6536\u84dd\u7259\u6570\u636e&#xff08;\u624b\u673a \u2192 \u5355\u7247\u673a&#xff09; USART1 \u8d1f\u8d23\u5411\u7535\u8111\u6253\u5370\u8c03\u8bd5\u4fe1\u606f&#xff08;\u5355\u7247\u673a \u2192 \u7535\u8111&#xff09;<\/li>\n<\/ul>\n<p><span class=\"token comment\">\/\/ USATR.h \u5934\u6587\u4ef6<\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">ifndef<\/span> <span class=\"token expression\">USART_H<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">define<\/span> <span class=\"token macro-name\">USART_H<\/span><\/span><br \/>\n<span class=\"token keyword\">void<\/span> <span class=\"token function\">My_Usart1_Init<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">void<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">void<\/span> <span class=\"token function\">My_Usart2_Init<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">void<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">endif<\/span><\/span><\/p>\n<p><span class=\"token comment\">\/\/ USATR.c \u6e90\u6587\u4ef6<\/span><br \/>\n<span class=\"token comment\">\/\/ USATR.c \u6e90\u6587\u4ef6<\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&#034;stm32f10x.h&#034;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&#034;USART.h&#034;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&#034;stdio.h&#034;<\/span><\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u5b9a\u4e49 USART2 \u4e32\u53e3\u51fd\u6570<\/span><br \/>\n<span class=\"token keyword\">void<\/span> <span class=\"token function\">My_Usart2_Init<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">void<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">{<\/span><br \/>\nGPIO_InitTypeDef GPIO_InitStruct<span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/ \u5b9a\u4e49 GPIO \u7ed3\u6784\u4f53<\/span><br \/>\nUSART_InitTypeDef USART_InitStruct<span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/ \u5b9a\u4e49 USART \u7ed3\u6784\u4f53<\/span><br \/>\nNVIC_InitTypeDef NVIC_InitStruct<span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/ \u5b9a\u4e49 NVIC \u7ed3\u6784\u4f53<\/span><\/p>\n<p><span class=\"token function\">RCC_APB2PeriphClockCmd<\/span><span class=\"token punctuation\">(<\/span>RCC_APB2Periph_GPIOA<span class=\"token punctuation\">,<\/span> ENABLE<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token function\">RCC_APB1PeriphClockCmd<\/span><span class=\"token punctuation\">(<\/span>RCC_APB1Periph_USART2<span class=\"token punctuation\">,<\/span> ENABLE<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token function\">NVIC_PriorityGroupConfig<\/span><span class=\"token punctuation\">(<\/span>NVIC_PriorityGroup_2<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u4f18\u5148\u7ea7\u5206\u7ec4\u914d\u7f6e<\/span><\/p>\n<p><span class=\"token comment\">\/\/ GPIOA2 TX \u8f93\u51fa \u6570\u636e\u53d1\u9001<\/span><br \/>\nGPIO_InitStruct<span class=\"token punctuation\">.<\/span>GPIO_Pin <span class=\"token operator\">&#061;<\/span> GPIO_Pin_2<span class=\"token punctuation\">;<\/span><br \/>\nGPIO_InitStruct<span class=\"token punctuation\">.<\/span>GPIO_Speed <span class=\"token operator\">&#061;<\/span> GPIO_Speed_10MHz<span class=\"token punctuation\">;<\/span><br \/>\nGPIO_InitStruct<span class=\"token punctuation\">.<\/span>GPIO_Mode <span class=\"token operator\">&#061;<\/span> GPIO_Mode_AF_PP<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token function\">GPIO_Init<\/span><span class=\"token punctuation\">(<\/span>GPIOA<span class=\"token punctuation\">,<\/span> <span class=\"token operator\">&amp;<\/span>GPIO_InitStruct<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ GPIOA3 RX \u8f93\u5165 \u6570\u636e\u63a5\u6536<\/span><br \/>\nGPIO_InitStruct<span class=\"token punctuation\">.<\/span>GPIO_Pin <span class=\"token operator\">&#061;<\/span> GPIO_Pin_3<span class=\"token punctuation\">;<\/span><br \/>\nGPIO_InitStruct<span class=\"token punctuation\">.<\/span>GPIO_Mode <span class=\"token operator\">&#061;<\/span> GPIO_Mode_IPU<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token function\">GPIO_Init<\/span><span class=\"token punctuation\">(<\/span>GPIOA<span class=\"token punctuation\">,<\/span> <span class=\"token operator\">&amp;<\/span>GPIO_InitStruct<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u4e32\u53e3 USART2 \u521d\u59cb\u5316<\/span><br \/>\nUSART_InitStruct<span class=\"token punctuation\">.<\/span>USART_BaudRate <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">9600<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/ \u6ce2\u7279\u7387<\/span><br \/>\nUSART_InitStruct<span class=\"token punctuation\">.<\/span>USART_WordLength <span class=\"token operator\">&#061;<\/span> USART_WordLength_8b<span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u4e32\u53e3\u6570\u636e\u7684\u5b57\u8282\u957f\u5ea6<\/span><br \/>\nUSART_InitStruct<span class=\"token punctuation\">.<\/span>USART_StopBits <span class=\"token operator\">&#061;<\/span> USART_StopBits_1<span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/ \u505c\u6b62\u4f4d<\/span><br \/>\nUSART_InitStruct<span class=\"token punctuation\">.<\/span>USART_Parity <span class=\"token operator\">&#061;<\/span> USART_Parity_No<span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/ \u5947\u5076\u6821\u9a8c\u4f4d<\/span><br \/>\nUSART_InitStruct<span class=\"token punctuation\">.<\/span>USART_Mode <span class=\"token operator\">&#061;<\/span> USART_Mode_Tx <span class=\"token operator\">|<\/span> USART_Mode_Rx<span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u53d1\u9001 \u63a5\u6536\u6a21\u5f0f<\/span><br \/>\nUSART_InitStruct<span class=\"token punctuation\">.<\/span>USART_HardwareFlowControl <span class=\"token operator\">&#061;<\/span> USART_HardwareFlowControl_None<span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u786c\u4ef6\u6d41\u63a7\u5236<\/span><br \/>\n<span class=\"token function\">USART_Init<\/span><span class=\"token punctuation\">(<\/span>USART2<span class=\"token punctuation\">,<\/span> <span class=\"token operator\">&amp;<\/span>USART_InitStruct<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/ \u521d\u59cb\u5316 USART2 \u7ed3\u6784\u4f53<\/span><br \/>\n<span class=\"token function\">USART_Cmd<\/span><span class=\"token punctuation\">(<\/span>USART2<span class=\"token punctuation\">,<\/span> ENABLE<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/ \u4e32\u53e3\u65f6\u949f\u4f7f\u80fd<\/span><br \/>\n<span class=\"token comment\">\/\/ \u4e32\u884c\u901a\u4fe1\u4e2d\u65ad\u914d\u7f6e<\/span><br \/>\n<span class=\"token function\">USART_ITConfig<\/span><span class=\"token punctuation\">(<\/span>USART2<span class=\"token punctuation\">,<\/span> USART_IT_RXNE<span class=\"token punctuation\">,<\/span> ENABLE<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/ \u63a5\u6536\u6570\u636e\u5bc4\u5b58\u5668\u4e0d\u4e3a\u7a7a\u53d1\u751f\u4e2d\u65ad<\/span><\/p>\n<p><span class=\"token comment\">\/\/ NVIC \u521d\u59cb\u5316<\/span><br \/>\nNVIC_InitStruct<span class=\"token punctuation\">.<\/span>NVIC_IRQChannel <span class=\"token operator\">&#061;<\/span> USART2_IRQn<span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/ \u521d\u59cb\u5316\u4e32\u53e3\u4e2d\u65ad\u7ebf2<\/span><br \/>\nNVIC_InitStruct<span class=\"token punctuation\">.<\/span>NVIC_IRQChannelPreemptionPriority <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\nNVIC_InitStruct<span class=\"token punctuation\">.<\/span>NVIC_IRQChannelSubPriority <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\nNVIC_InitStruct<span class=\"token punctuation\">.<\/span>NVIC_IRQChannelCmd <span class=\"token operator\">&#061;<\/span> ENABLE<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token function\">NVIC_Init<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>NVIC_InitStruct<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u5b9a\u4e49 USART1 \u4e32\u53e3\u51fd\u6570<\/span><br \/>\n<span class=\"token keyword\">void<\/span> <span class=\"token function\">My_Usart1_Init<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">void<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">{<\/span><br \/>\nGPIO_InitTypeDef GPIO_InitStruct<span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/ \u5b9a\u4e49 GPIO \u7ed3\u6784\u4f53<\/span><br \/>\nUSART_InitTypeDef USART_InitStruct<span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/ \u5b9a\u4e49 USART \u7ed3\u6784\u4f53<\/span><br \/>\nNVIC_InitTypeDef NVIC_InitStruct<span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/ \u5b9a\u4e49 NVIC \u7ed3\u6784\u4f53<\/span><\/p>\n<p><span class=\"token function\">RCC_APB2PeriphClockCmd<\/span><span class=\"token punctuation\">(<\/span>RCC_APB2Periph_GPIOA <span class=\"token operator\">|<\/span> RCC_APB2Periph_USART1<span class=\"token punctuation\">,<\/span> ENABLE<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token function\">NVIC_PriorityGroupConfig<\/span><span class=\"token punctuation\">(<\/span>NVIC_PriorityGroup_2<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u4f18\u5148\u7ea7\u5206\u7ec4\u914d\u7f6e<\/span><\/p>\n<p><span class=\"token comment\">\/\/ GPIOA9 TX \u8f93\u51fa \u6570\u636e\u53d1\u9001<\/span><br \/>\nGPIO_InitStruct<span class=\"token punctuation\">.<\/span>GPIO_Pin <span class=\"token operator\">&#061;<\/span> GPIO_Pin_9<span class=\"token punctuation\">;<\/span><br \/>\nGPIO_InitStruct<span class=\"token punctuation\">.<\/span>GPIO_Speed <span class=\"token operator\">&#061;<\/span> GPIO_Speed_10MHz<span class=\"token punctuation\">;<\/span><br \/>\nGPIO_InitStruct<span class=\"token punctuation\">.<\/span>GPIO_Mode <span class=\"token operator\">&#061;<\/span> GPIO_Mode_AF_PP<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token function\">GPIO_Init<\/span><span class=\"token punctuation\">(<\/span>GPIOA<span class=\"token punctuation\">,<\/span> <span class=\"token operator\">&amp;<\/span>GPIO_InitStruct<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ GPIOA10 RX \u8f93\u5165 \u6570\u636e\u63a5\u6536<\/span><br \/>\nGPIO_InitStruct<span class=\"token punctuation\">.<\/span>GPIO_Pin <span class=\"token operator\">&#061;<\/span> GPIO_Pin_10<span class=\"token punctuation\">;<\/span><br \/>\nGPIO_InitStruct<span class=\"token punctuation\">.<\/span>GPIO_Mode <span class=\"token operator\">&#061;<\/span> GPIO_Mode_IPU<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token function\">GPIO_Init<\/span><span class=\"token punctuation\">(<\/span>GPIOA<span class=\"token punctuation\">,<\/span> <span class=\"token operator\">&amp;<\/span>GPIO_InitStruct<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u4e32\u53e3 USART1 \u521d\u59cb\u5316<\/span><br \/>\nUSART_InitStruct<span class=\"token punctuation\">.<\/span>USART_BaudRate <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">115200<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/ \u6ce2\u7279\u7387<\/span><br \/>\nUSART_InitStruct<span class=\"token punctuation\">.<\/span>USART_WordLength <span class=\"token operator\">&#061;<\/span> USART_WordLength_8b<span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u4e32\u53e3\u6570\u636e\u7684\u5b57\u8282\u957f\u5ea6<\/span><br \/>\nUSART_InitStruct<span class=\"token punctuation\">.<\/span>USART_StopBits <span class=\"token operator\">&#061;<\/span> USART_StopBits_1<span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/ \u505c\u6b62\u4f4d<\/span><br \/>\nUSART_InitStruct<span class=\"token punctuation\">.<\/span>USART_Parity <span class=\"token operator\">&#061;<\/span> USART_Parity_No<span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/ \u5947\u5076\u6821\u9a8c\u4f4d<\/span><br \/>\nUSART_InitStruct<span class=\"token punctuation\">.<\/span>USART_Mode <span class=\"token operator\">&#061;<\/span> USART_Mode_Tx <span class=\"token operator\">|<\/span> USART_Mode_Rx<span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u53d1\u9001 \u63a5\u6536\u6a21\u5f0f<\/span><br \/>\nUSART_InitStruct<span class=\"token punctuation\">.<\/span>USART_HardwareFlowControl <span class=\"token operator\">&#061;<\/span> USART_HardwareFlowControl_None<span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u786c\u4ef6\u6d41\u63a7\u5236<\/span><br \/>\n<span class=\"token function\">USART_Init<\/span><span class=\"token punctuation\">(<\/span>USART1<span class=\"token punctuation\">,<\/span> <span class=\"token operator\">&amp;<\/span>USART_InitStruct<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/ \u521d\u59cb\u5316 USART1 \u7ed3\u6784\u4f53<\/span><br \/>\n<span class=\"token function\">USART_Cmd<\/span><span class=\"token punctuation\">(<\/span>USART1<span class=\"token punctuation\">,<\/span> ENABLE<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/ \u4e32\u53e3\u65f6\u949f\u4f7f\u80fd<\/span><br \/>\n<span class=\"token comment\">\/\/ \u4e32\u884c\u901a\u4fe1\u4e2d\u65ad\u914d\u7f6e<\/span><br \/>\n<span class=\"token function\">USART_ITConfig<\/span><span class=\"token punctuation\">(<\/span>USART1<span class=\"token punctuation\">,<\/span> USART_IT_RXNE<span class=\"token punctuation\">,<\/span> ENABLE<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/ \u63a5\u6536\u6570\u636e\u5bc4\u5b58\u5668\u4e0d\u4e3a\u7a7a\u53d1\u751f\u4e2d\u65ad<\/span><\/p>\n<p><span class=\"token comment\">\/\/ NVIC \u521d\u59cb\u5316<\/span><br \/>\nNVIC_InitStruct<span class=\"token punctuation\">.<\/span>NVIC_IRQChannel <span class=\"token operator\">&#061;<\/span> USART1_IRQn<span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/ \u521d\u59cb\u5316\u4e32\u53e3\u4e2d\u65ad\u7ebf1<\/span><br \/>\nNVIC_InitStruct<span class=\"token punctuation\">.<\/span>NVIC_IRQChannelPreemptionPriority <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\nNVIC_InitStruct<span class=\"token punctuation\">.<\/span>NVIC_IRQChannelSubPriority <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\nNVIC_InitStruct<span class=\"token punctuation\">.<\/span>NVIC_IRQChannelCmd <span class=\"token operator\">&#061;<\/span> ENABLE<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token function\">NVIC_Init<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>NVIC_InitStruct<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token comment\">\/\/ printf \u91cd\u5b9a\u5411<\/span><br \/>\n<span class=\"token keyword\">int<\/span> <span class=\"token function\">fputc<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> ch<span class=\"token punctuation\">,<\/span> FILE <span class=\"token operator\">*<\/span>p<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token function\">USART_SendData<\/span><span class=\"token punctuation\">(<\/span>USART1<span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">(<\/span>u8<span class=\"token punctuation\">)<\/span>ch<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token comment\">\/\/ \u7b49\u5f85\u6574\u4e2a\u5e27\u53d1\u9001\u5b8c\u6210 (\u5305\u62ec\u505c\u6b62\u4f4d)<\/span><br \/>\n<span class=\"token keyword\">while<\/span><span class=\"token punctuation\">(<\/span><span class=\"token function\">USART_GetFlagStatus<\/span><span class=\"token punctuation\">(<\/span>USART1<span class=\"token punctuation\">,<\/span> USART_FLAG_TC<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&#061;<\/span> RESET<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token keyword\">return<\/span> ch<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u4e32\u53e3\u4e2d\u65ad\u51fd\u6570, \u53ea\u8981\u6ee1\u8db3\u5b8c\u6574\u4e2d\u65ad\u6761\u4ef6, \u81ea\u52a8\u6267\u884c\u51fd\u6570<\/span><br \/>\n<span class=\"token keyword\">void<\/span> <span class=\"token function\">USART2_IRQHandler<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">void<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token keyword\">char<\/span> str <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u5224\u65ad\u662f\u5426\u53d1\u751f\u4e2d\u65ad<\/span><br \/>\n<span class=\"token keyword\">if<\/span><span class=\"token punctuation\">(<\/span><span class=\"token function\">USART_GetITStatus<\/span><span class=\"token punctuation\">(<\/span>USART2<span class=\"token punctuation\">,<\/span> USART_IT_RXNE<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">!&#061;<\/span> RESET<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">{<\/span><br \/>\nstr <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">USART_ReceiveData<\/span><span class=\"token punctuation\">(<\/span>USART2<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/ \u4e32\u53e3\u6570\u636e\u63a5\u6536<\/span><br \/>\n<span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;receive date: %c \\\\r\\\\n&#034;<\/span><span class=\"token punctuation\">,<\/span> str<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token keyword\">if<\/span><span class=\"token punctuation\">(<\/span>str <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token char\">&#039;0&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token function\">GPIO_ResetBits<\/span><span class=\"token punctuation\">(<\/span>GPIOA<span class=\"token punctuation\">,<\/span> GPIO_Pin_1<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;LED IS ON \\\\r\\\\n&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token keyword\">if<\/span><span class=\"token punctuation\">(<\/span>str <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token char\">&#039;1&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token function\">GPIO_SetBits<\/span><span class=\"token punctuation\">(<\/span>GPIOA<span class=\"token punctuation\">,<\/span> GPIO_Pin_1<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;LED IS OFF \\\\r\\\\n&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u6e05\u9664\u4e32\u53e3\u4e2d\u65ad\u7ebf\u7684\u6302\u8d77\u6807\u5fd7\u4f4d, \u65b9\u4fbf\u51fd\u6570\u4e0b\u6b21\u8fd0\u884c<\/span><br \/>\n<span class=\"token function\">USART_ClearITPendingBit<\/span><span class=\"token punctuation\">(<\/span>USART2<span class=\"token punctuation\">,<\/span> USART_IT_RXNE<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token comment\">\/\/ main.c<\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&#034;stm32f10x.h&#034;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&#034;main.h&#034;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&#034;USART.h&#034;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&#034;LED.h&#034;<\/span><\/span><\/p>\n<p><span class=\"token keyword\">int<\/span>  <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token function\">My_Usart1_Init<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token function\">My_Usart2_Init<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span 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