\n\t\uff081\uff09 PCB\u677f<\/u>\u5e03\u7ebf<\/u>\u9519\u8bef;<\/p>\n
\n\t\uff082\uff09 \u5355\u7247\u673a\u8d28\u91cf\u6709\u95ee\u9898;<\/p>\n
\n\t\uff083\uff09 \u6676\u632f\u8d28\u91cf\u6709\u95ee\u9898;<\/p>\n
\n\t\uff084\uff09 \u8d1f\u8f7d\u7535\u5bb9<\/u>\u6216\u5339\u914d\u7535\u5bb9\u4e0e\u6676\u632f\u4e0d\u5339\u914d\u6216\u8005\u7535\u5bb9\u8d28\u91cf\u6709\u95ee\u9898;<\/p>\n
\n\t\uff085\uff09 PCB<\/u>\u677f\u53d7\u6f6e\uff0c\u5bfc\u81f4\u963b\u6297<\/u>\u5931\u914d\u800c\u4e0d\u80fd\u8d77\u632f;<\/p>\n
\n\t\uff086\uff09 \u6676\u632f\u7535\u8def<\/u>\u7684\u8d70\u7ebf\u8fc7\u957f;<\/p>\n
\n\t\uff087\uff09 \u6676\u632f\u4e24\u811a\u4e4b\u95f4\u6709\u8d70\u7ebf;<\/p>\n
\n\t\uff088\uff09 \u5916\u56f4\u7535\u8def\u7684\u5f71\u54cd\u3002<\/p>\n
\n\t![\"\u5355\u7247\u673a\u6676\u632f\u4e0d\u8d77\u632f\u5177\u4f53\u539f\u56e0\u5206\u6790\u4e0e\u89e3\u51b3\u65b9\u6848\"](\"http:\/\/www.szryc.com\/uploads\/allimg\/190927\/1A03341Q-0.png\")
<\/p>\n
\n\t\u89e3\u51b3\u65b9\u6848\uff0c\u5efa\u8bae\u6309\u5982\u4e0b\u65b9\u6cd5\u9010\u4e2a\u6392\u9664\u6545\u969c\uff1a<\/p>\n
\n\t\uff081\uff09 \u6392\u9664\u7535\u8def\u9519\u8bef\u7684\u53ef\u80fd\u6027\uff0c\u56e0\u6b64\u4f60\u53ef\u4ee5\u7528\u76f8\u5e94\u578b\u53f7\u5355\u7247\u673a\u7684\u63a8\u8350\u7535\u8def\u8fdb\u884c\u6bd4\u8f83\u3002<\/p>\n
\n\t\uff082\uff09 \u6392\u9664\u5916\u56f4\u5143\u4ef6\u4e0d\u826f\u7684\u53ef\u80fd\u6027\uff0c\u56e0\u4e3a\u5916\u56f4\u96f6\u4ef6\u65e0\u975e\u4e3a\u7535\u963b<\/u>\uff0c\u7535\u5bb9\uff0c\u4f60\u5f88\u5bb9\u6613\u9274\u522b\u662f\u5426\u4e3a\u826f\u54c1\u3002<\/p>\n
\n\t\uff083\uff09 \u6392\u9664\u6676\u632f\u4e3a\u505c\u632f\u54c1\u7684\u53ef\u80fd\u6027\uff0c\u56e0\u4e3a\u4f60\u4e0d\u4f1a\u53ea\u8bd5\u4e86\u4e00\u4e8c\u4e2a\u6676\u632f\u3002<\/p>\n
\n\t\uff084\uff09 \u8bd5\u7740\u6539\u6362\u6676\u4f53<\/u>\u4e24\u7aef\u7684\u7535\u5bb9\uff0c\u4e5f\u8bb8\u6676\u632f\u5c31\u80fd\u8d77\u632f\u4e86\uff0c\u7535\u5bb9\u7684\u5927\u5c0f\u8bf7\u53c2\u8003\u6676\u632f\u7684\u4f7f\u7528\u8bf4\u660e\u3002<\/p>\n
\n\t\uff085\uff09 \u5728PCB\u5e03\u7ebf\u65f6\u6676\u632f\u7535\u8def\u7684\u8d70\u7ebf\u5e94\u5c3d\u91cf\u77ed\u4e14\u5c3d\u53ef\u80fd\u9760\u8fd1IC\uff0c\u675c\u7edd\u5728\u6676\u632f\u4e24\u811a\u95f4\u8d70\u7ebf\u3002<\/p>\n
\n\t2\u3001\u5355\u7247\u673a\u6676\u632f\u7535\u8def\u4e2d\u4e24\u4e2a\u5fae\u8c03\u7535\u5bb9\u4e0d\u5bf9\u79f0\u4f1a\u600e\u6837\uff1f\u76f8\u5dee\u591a\u5c11\u4f1a\u4f7f\u9891\u7387\u600e\u6837\u53d8\u5316\uff1f\u6211\u5728\u68c0\u6d4b\u65e0\u7ebf\u9f20\u6807\u7684\u63a5\u53d7\u6a21\u5757\u65f6\uff0c\u53d1\u73b0\u5176\u9891\u7387\u603b\u662f\u6162\u6162\u53d8\u5316\uff08\u5c31\u662f\u4e00\u76f4\u4e0d\u677e\u63a2\u5934\u7684\u624b\uff0c\u53d1\u73b0\u9891\u7387\u6162\u6162\u53d8\u5c0f\uff09\u6676\u632f\u662f\u65b0\u7684\uff01<\/p>\n
\n\t\u7b54\uff1a\u7535\u5bb9\u4e0d\u5bf9\u79f0\u4e5f\u4e0d\u4f1a\u5f15\u8d77\u9891\u7387\u7684\u6f02\u79fb\uff0c\u4f60\u8bf4\u7684\u9891\u7387\u6f02\u79fb\u53ef\u80fd\u662f\u56e0\u4e3a\u6676\u632f\u7684\u7535\u5bb9\u7684\u5bb9\u91cf\u5f88\u4e0d\u7a33\u5b9a\u5f15\u8d77\u7684\uff0c\u4f60\u53ef\u4ee5\u6362\u4e86\u8bd5\uff0c\u6362\u4e24\u7535\u5bb9\u4e0d\u96be\uff0c\u8981\u4e0d\u5c31\u662f\u4f60\u7684\u6676\u632f\u7684\u7a33\u5b9a\u6027\u592a\u5dee\u4e86\uff0c\u6216\u8005\u4f60\u6d4b\u91cf<\/u>\u7684\u65b9\u6cd5\u6709\u95ee\u9898\u3002<\/p>\n
\n\t3\u300151\u5355\u7247\u673a\u65f6\u949f<\/u>\u7535\u8def\u752812MHZ\u7684\u6676\u632f\u65f6\u90a3\u7535\u5bb9\u7684\u503c\u662f\u600e\u6837\u5f97\u51fa\u6765\u7684\uff1f\u62ff\u5185\u90e8\u65f6\u949f\u7535\u8def\u6765\u8bf4\u660e\u5427\uff01<\/p>\n
\n\t\u7b54\uff1a\u5176\u5b9e\u8fd9\u4e24\u4e2a\u7535\u5bb9\u6ca1\u4eba\u80fd\u591f\u89e3\u91ca\u6e05\u695a\u5230\u5e95\u600e\u4e48\u9009\u503c\uff0c\u56e0\u4e3a22pF\u5b9e\u5728\u662f\u592a\u5c0f\u4e86\u3002<\/p>\n
\n\t\u8fd9\u4e2a\u8981\u8bf4\u53ea\u80fd\u8bf4\u548c\u5185\u90e8\u7684\u632f\u8361\u7535\u8def\u81ea\u8eab\u7279\u6027\u6709\u5173\u7cfb\uff0c\u642d\u914d\u4f7f\u7528\uff0c\u7528\u6765\u6821\u6b63\u6ce2\u5f62\uff0c\u6ca1\u6709\u4eba\u53bb\u6df1\u7a76\u5b83\u5230\u5e95\u4e3a\u4ec0\u4e48\u5c31\u662f\u8fd9\u4e48\u5927\u7684\u503c\u3002<\/p>\n
\n\t4\u3001\u6676\u632f\u4e3a\u4f55\u88ab\u8981\u6c42\u7d27\u6328\u7740IC\uff0c\u5355\u7247\u673a\u6676\u632f\u4e0d\u8d77\u632f\uff1f<\/p>\n
\n\t\u7b54\uff1a\u539f\u56e0\u5982\u4e0b\uff1a<\/p>\n
\n\t\u6676\u632f\u662f\u901a\u8fc7\u7535\u6fc0\u52b1\u6765\u4ea7\u751f\u56fa\u5b9a\u9891\u7387\u7684\u673a\u68b0<\/u>\u632f\u52a8<\/u>\uff0c\u800c\u632f\u52a8\u53c8\u4f1a\u4ea7\u751f\u7535\u6d41<\/u>\u53cd\u9988\u7ed9\u7535\u8def\uff0c\u7535\u8def\u63a5\u5230\u53cd\u9988 \u540e\u8fdb\u884c\u4fe1\u53f7\u653e\u5927\uff0c\u518d\u6b21\u7528\u653e\u5927\u7684\u7535\u4fe1\u53f7\u6765\u6fc0\u52b1\u6676\u632f\u673a\u68b0\u632f\u52a8\uff0c\u6676\u632f\u518d\u5c06\u632f\u52a8\u4ea7\u751f\u7684\u7535\u6d41\u53cd\u9988\u7ed9\u7535\u8def\uff0c\u5982\u6b64\u8fd9\u822c\u3002\u5f53\u7535\u8def\u4e2d\u7684\u6fc0\u52b1\u7535\u4fe1\u53f7\u548c\u6676\u632f\u7684\u6807\u79f0\u9891\u7387\u76f8\u540c\u65f6\uff0c\u7535 \u8def\u5c31\u80fd\u8f93\u51fa\u4fe1\u53f7\u5f3a\u5927\uff0c\u9891\u7387\u7a33\u5b9a\u7684\u6b63\u5f26\u6ce2\u3002\u6574\u5f62\u7535\u8def\u518d\u5c06\u6b63\u5f26\u6ce2\u53d8\u6210\u65b9\u6ce2\u9001\u5230\u6570\u5b57\u7535\u8def<\/u>\u4e2d\u4f9b\u5176\u4f7f\u7528\u3002<\/p>\n
\n\t\u95ee\u9898\u5728\u4e8e\u6676\u632f\u7684\u8f93\u51fa\u80fd\u529b\u6709\u9650\uff0c\u5b83\u4ec5\u4ec5\u8f93\u51fa\u4ee5\u6beb\u74e6\u4e3a\u5355\u4f4d\u7684\u7535\u80fd\u91cf\u3002\u5728 IC\uff08\u96c6\u6210\u7535\u8def<\/u>\uff09 \u5185\u90e8\uff0c\u901a\u8fc7\u653e\u5927\u5668<\/u>\u5c06\u8fd9\u4e2a\u4fe1\u53f7\u653e\u5927\u51e0\u767e\u500d\u751a\u81f3\u4e0a\u5343\u500d\u624d\u80fd\u6b63\u5e38\u4f7f\u7528\u3002<\/p>\n
\n\t\u6676\u632f\u548c IC \u95f4\u4e00\u822c\u662f\u901a\u8fc7\u94dc\u8d70\u7ebf\u76f8\u8fde\u7684\uff0c\u8fd9\u6839\u8d70\u7ebf\u53ef\u4ee5\u770b\u6210\u4e00\u6bb5\u5bfc\u7ebf\u6216\u6570\u6bb5\u5bfc\u7ebf\uff0c\u5bfc\u7ebf\u5728\u5207\u5272\u78c1\u529b\u7ebf\u7684\u65f6\u5019\u4f1a\u4ea7\u751f\u7535\u6d41\uff0c\u5bfc\u7ebf\u8d8a\u957f\uff0c\u4ea7\u751f\u7684\u7535\u6d41\u8d8a\u5f3a\u3002<\/p>\n
\n\t\u73b0\u5b9e\u4e2d\uff0c\u78c1\u529b\u7ebf\u4e0d\u5e38\u89c1\uff0c\u7535\u78c1\u6ce2\u5374\u5230\u5904\u90fd\u662f\uff0c\u4f8b\u5982\uff1a\u65e0\u7ebf\u5e7f\u64ad\u53d1\u5c04\u3001\u7535\u89c6\u5854\u53d1\u5c04\u3001\u624b\u673a\u901a\u8baf\u7b49\u7b49\u3002\u6676\u632f\u548cIC\u4e4b\u95f4\u7684\u8fde\u7ebf\u5c31\u53d8\u6210\u4e86\u63a5\u6536\u5929\u7ebf\uff0c\u5b83\u8d8a\u957f\uff0c\u63a5\u6536\u7684\u4fe1\u53f7\u5c31 \u8d8a\u5f3a\uff0c\u4ea7\u751f\u7684\u7535\u80fd\u91cf\u5c31\u8d8a\u5f3a\uff0c\u76f4\u5230\u63a5\u6536\u5230\u7684\u7535\u4fe1\u53f7\u5f3a\u5ea6\u8d85\u8fc7\u6216\u63a5\u8fd1\u6676\u632f\u4ea7\u751f\u7684\u4fe1\u53f7\u5f3a\u5ea6\u65f6\uff0cIC\u5185\u7684\u653e\u5927\u7535\u8def\u8f93\u51fa\u7684\u5c06\u4e0d\u518d\u662f\u56fa\u5b9a\u9891\u7387\u7684\u65b9\u6ce2\u4e86\uff0c\u800c\u662f\u4e71\u4e03\u516b\u7cdf\u7684\u4fe1 \u53f7\uff0c\u5bfc\u81f4\u6570\u5b57\u7535\u8def\u65e0\u6cd5\u540c\u6b65\u5de5\u4f5c\u800c\u51fa\u9519\u3002<\/p>\n
\n\t\u6240\u4ee5\uff0c\u753bPCB\uff08\u7535\u8def\u677f\uff09\u7684\u65f6\u5019\uff0c\u6676\u632f\u79bb\u5b83\u7684\u653e\u5927\u7535\u8def\uff08IC\u7ba1\u811a\uff09\u8d8a\u8fd1\u8d8a\u597d\u3002<\/p>\n
\n\t5\u3001\u5355\u7247\u673a\u6676\u632f\u4e0e\u901f\u5ea6\u7684\u7591\u95ee\uff0c\u6267\u884c\u4e00\u6761\u6307\u4ee4\u7684\u5468\u671f\u4e0d\u662f\u7531\u6676\u632f\u51b3\u5b9a\u7684\u5417\u3002\u90a3\u4e48\u6bd4\u598251\u5355\u7247\u673a\u548cMSP430<\/u>\uff0c\u7ed951\u63a5\u9ad8\u901f\u6676\u632f\uff0c430\u63a5\u4f4e\u901f\u7684\uff0c\u662f\u4e0d\u662f51\u8dd1\u7684\u8981\u5feb\uff1f\u662f\u4e0d\u662f\u901f\u5ea6\u5355\u7247\u673a\u901f\u5ea6\u4ec5\u4ec5\u4e0e\u6676\u632f\u6709\u5173\uff0c\u5173\u952e\u662f\u5355\u7247\u673a\u80fd\u4e0d\u80fd\u652f\u6301\u90a3\u4e48\u5927\u7684\u6676\u632f\uff1f\u6211\u7684\u7406\u89e3\u5bf9\u5417\uff1f<\/p>\n
\n\t\u7b54\uff1a\u6bcf\u4e2a\u5355\u7247\u673a\u7684\u901f\u5ea6\u662f\u53d7\u5230\u5185\u90e8\u903b\u8f91\u95e8\u7535\u5e73\u8df3\u53d8\u901f\u5ea6\u7684**\u7684\u3002<\/p>\n
\n\t\u4f60\u8bf4\u7684\u6ca1\u9519\uff0c\u5bf9\u4e8e\u4e00\u4e2a51\uff0c\u7ed9\u4ed6\u7528\u66f4\u9ad8\u7684\u6676\u632f\uff0c\u901f\u5ea6\u4f1a\u5feb\u4e9b\u3002<\/p>\n
\n\t\u4f46\u662f\u5bf9\u4e8e\u9ad8\u7ea7\u7684\u5355\u7247\u673a\u5c31\u4e0d\u4e00\u6837\u4e86\u3002\u9ad8\u7ea7\u5355\u7247\u673a\u5185\u90e8\uff0c\u4e00\u822c\u90fd\u662f\u6709\u9891\u7387\u63a7\u5236\u5bc4\u5b58\u5668<\/u>\u7684\uff0c\u6240\u4ee5\uff0c\u7b80\u5355\u7684\u589e\u52a0\u6676\u632f\uff0c\u53ef\u80fd\u8fbe\u5230\u5355\u7247\u673a\u7684\u6781\u9650\uff0c\u5bfc\u81f4\u8dd1\u98de\u3002<\/p>\n
\n\t6\u3001\u5355\u7247\u673a\u7684\u8fd0\u884c\u901f\u5ea6\u548c\u6676\u632f\u5927\u5c0f\u7684\u5173\u7cfb\uff0c\u82e5\u5355\u7247\u673a\u7684\u6700\u9ad8\u5de5\u4f5c\u9891\u7387\u662f40M\uff0c\u6676\u632f\u662f\u5426\u53ef\u4ee5\u9009\u62e924M\u6216\u66f4\u9ad8\uff0c\u4f46\u4e0d\u8d85\u8fc740M\uff0c\u8fd9\u6837\u5355\u7247\u673a\u7684\u8fd0\u884c\u901f\u5ea6\u662f\u5426\u5927\u589e\uff1f\u957f\u671f\u5728\u6b64\u5de5\u4f5c\u9891\u7387\u4e0b\u5bf9\u5355\u7247\u673a\u662f\u5426\u6709\u4e0d\u826f\u5f71\u54cd\uff1f\u5355\u7247\u673a\u5bf9\u6676\u632f\u7684\u9009\u62e9\u7684\u539f\u5219\u662f\u600e\u6837\u7684\uff1f\u8c22\u8c22\uff01<\/p>\n
\n\t\u7b54\uff1a\u5f53\u7136\u662f\u6709\u5f71\u54cd\u7684\uff0c\u5355\u7247\u673a\u7684\u5de5\u4f5c\u901f\u5ea6\u8d8a\u5feb\uff0c\u529f\u8017\u4e5f\u8d8a\u5927\uff0c\u53d7\u5e72\u6270\u4e5f\u4f1a\u8d8a\u5389\u5bb3\uff0c\u603b\u4e4b\u6700\u9ad8\u80fd\u8dd140M\u7684\uff0c\u8dd1\u4e0d\u8d85\u8fc740M\u7684\u662f\u6ca1\u6709\u95ee\u9898\u7684\uff0c\u53ea\u662f\u5bf9\u76f8\u5173\u7684\u6280\u672f\uff08\u5982PCB\u7684\u8bbe\u8ba1\u5143\u4ef6\u7684\u9009\u53d6\u7b49\uff09\u4f1a\u9ad8\u53bb\u5f88\u591a\u3002<\/p>\n
\n\t7\u3001\u8bf7\u95ee\uff1a\u6709\u4ec0\u4e48\u65b9\u6cd5\u53ef\u4ee5\u786e\u5b9a\u67d0\u4e00\u6b3e\u5355\u7247\u673a\u5728\u67d0\u4e00\u5927\u5c0f\u7684\u6676\u632f\u4e0b\u662f\u5426\u80fd\u6b63\u5e38\u5de5\u4f5c\uff1f<\/p>\n
\n\t\u7b54\uff1a\u6676\u632f\u597d\u6bd4\u5355\u7247\u673a\u7684\u5fc3\u810f<\/p>\n
\n\t\u6676\u632f\u9009\u62e9\u592a\u9ad8\u4e0d\u592a\u5408\u9002\uff0c\u5177\u4f53\u6676\u632f\u4e0a\u9650\u662f\u591a\u5c11\uff0c\u6050\u6015\u6d4b\u4e0d\u51fa\u6765\uff0c\u53ea\u80fd\u6309\u7167\u4eba\u5bb6\u5355\u7247\u673a\u7684\u8981\u6c42\uff0c\u4e00\u822cSTC\u7cfb\u5217\u5355\u7247\u673a\u4e0a\u9650\u662f35M\u621640M\uff0cstc\u5355\u51ed\u4e0a\u5199\u7684\u6709\uff0c\u5982STC11F16XE 35I-LQFP44G\u5176\u4e2d35I\u5c31\u662f\u6676\u632f\u6700\u9ad835M\u7684\u5de5\u4e1a\u7ea7\u82af\u7247\u3002<\/p>\n
\n\t\u8d85\u8fc7\u4e0a\u9650\u4f1a\u51fa\u73b0\u4ec0\u4e48\u6837\u7684\u95ee\u9898\uff0c\u6ca1\u6709\u6d4b\u8bd5\u8fc7\uff0c\u4e00\u822c\u6676\u632f\u9009\u62e912M\u7684\u6bd4\u8f83\u591a\uff0c\u5982\u679c\u9009\u62e9STC 1T\u6307\u4ee4\u7684\uff0c\u5c31\u76f8\u5f53\u4e8e12*12=144M\u7684\u6676\u632f\u3002\u5982\u679c\u7528\u4e8e\u4e32\u53e3\u901a\u4fe1\uff0c\u5efa\u8bae\u9009\u752811.0592M\u7684\u621622.184M\uff0c\u9009\u62e9\u6676\u632f\u6700\u4e3b\u8981\u8fd8\u662f\u53c2\u7167\u4eba\u5bb6\u7684\u8bf4\u660e\u4e66\u3002<\/p>\n
\n\t8\u30014\u4e2aAT89C51\u5355\u7247\u673a\u80fd\u5426\u7528\u4e00\u4e2a12M\u7684\u6676\u632f\u4f7f\u5176\u90fd\u6b63\u5e38\u5de5\u4f5c\uff1f\u4e00\u4e2a\u91c7\u7528\u5185\u90e8\u65f6\u949f\u65b9\u5f0f\uff0c\u5176\u4f59\u4e09\u4e2a\u7528\u5916\u90e8\u65b9\u5f0f\u3002..\u90a3\u6211\u56db\u4e2a\u90fd\u7528\u5185\u90e8\u65b9\u5f0f\u53ef\u4ee5\u4e0d\uff08\u5c064\u4e2a\u5355\u7247\u673a\u90fd\u5e76\u8054\u5728\u4e00\u4e2a\u6676\u632f\u4e0a\uff09\uff1f<\/p>\n
\n\t\u7b54\uff1a\u53ef\u4ee5\uff0c\u5176\u4e2d\u4e00\u4e2a\u6b63\u5e38\u63a5\u6676\u632f\uff0c\u4ed6\u7684XTAL2\u8f93\u51fa\u63a5\u5230\u53e6\u5916\u4e09\u4e2a\u7684XTAL1\u8f93\u5165\u4e0a\u3002<\/p>\n
\n\t9\u3001AT89C51\u5355\u7247\u673a4\u5146\u7684\u6676\u632f\u80fd\u4e0d\u80fd\u542f\u52a8\uff1f<\/p>\n
\n\t\u7b54\uff1a\u5f53\u7136\u53ef\u4ee5\uff0c\u770b\u770bdatasheet\u5427\uff0c\u6211\u4f30\u8ba11M\u7684\u90fd\u53ef\u4ee5<\/p>\n
\n\t\u8fd8\u6709\u7684\u5355\u7247\u673a\u59822051\u53ef\u80fd\u8fd8\u53ef\u4ee5\u4f4e<\/p>\n
\n\t\u53f0\u7cfb\u65e5\u7cfb\u6709\u7684\u53ef\u4ee5\u523032.768kHz<\/p>\n
\n\t10\u300189c51\u5355\u7247\u673a\u7684\u590d\u4f4d\u7535\u8def\u4e2d\u5e38\u91c7\u752812MHZ\u7684\u6676\u632f\uff0c\u5b9e\u9645\u4e0a\u5e02\u573a\u4e0a\u7a0d\u5c0f\u4e8e12MHZ\uff0c\u4e3a\u4ec0\u4e48\u5462\uff1f\u6025\u6c42<\/p>\n
\n\t\u7b54\uff1a\u9700\u8981\u4e32\u53e3\u901a\u8baf\u65f6\u4e00\u822c\u662f\u752811.0582MHZ\u7684\uff0c\u8fd9\u6837\u6ce2\u7279\u7387\u624d\u597d\u7b97\u3002<\/p>\n
\n\t\u752812MHZ\u7684\u5de5\u4f5c\u5468\u671f\u5c31\u5bb9\u6613\u8ba1\u7b97\u3002<\/p>\n
\n\t11\u3001\u5355\u7247\u673a\u6676\u632f\u4e0a\u7535\u4e0d\u8d77\u632f\uff0c\u4f46\u662f\u624b\u78b0\u4e00\u4e0b\u6676\u632f\u5c31\u8d77\u632f\u4e86\uff0c\u4e3a\u4ec0\u4e48\uff1f<\/p>\n
\n\t\u7b54 \uff1a\u770b\u770b\u6676\u632f\u914d\u7684\u7535\u5bb9\u710a\u4e86\u6ca1\u6709\uff0c\u503c\u6709\u6ca1\u6709\u9519\u8bef\uff1f<\/p>\n
\n\t12\u3001\u600e\u4e48\u5224\u65ad\u5355\u7247\u673a\u6676\u632f\u662f\u5426\u8d77\u632f\u5440\uff1f\u6025\u6025\uff01\uff01<\/p>\n
\n\t\u7b54\uff1a\u6700\u7b80\u5355\u662f\u7528\u793a\u6ce2\u5668<\/u>\uff0c\u53e6\u5916\u4f60\u53ef\u4ee5\u770b\u4e00\u4e0b\u7535\u6e90\u662f\u5426\u6b63\u5e38<\/p>\n
\n\t13\u3001\u600e\u6837\u5224\u65ad\u5355\u7247\u673a\u5916\u90e8\u6676\u632f\u6709\u6ca1\u6709\u8d77\u632f\uff1f\u6211\u7684STC89C52\u5355\u7247\u673a\u672c\u6765\u662f\u597d\u597d\u7684\u540e\u6765\u4e0d\u884c\u4e86\uff0c\u6211\u6362\u4e86\u4e2a\u6676\u632f\u5c31\u597d\u4e86\u3002\u4f46\u662f\u8fc7\u4e86\u51e0\u4e2a\u5c0f\u65f6\u540e\u53c8\u4e0d\u884c\u4e86\uff0c\u662f\u600e\u4e48\u56de\u4e8b\u3002\u8fd8\u6709\u5c31\u662f\u600e\u6837\u5224\u65ad\u6676\u632f\u662f\u5426\u8d77\u632f\uff1f<\/p>\n
\n\t\u7b54\uff1a \u7b2c\u4e00\u70b9\uff1a\u5148\u6362\u4e00\u5757\u5355\u7247\u673a\u8bd5\u8bd5\uff0c\u95ee\u9898\u8fd8\u5728\u5219\u6392\u9664\u5355\u7247\u673a;<\/p>\n
\n\t\u7b2c\u4e8c\u70b9\uff1a\u53ef\u80fd\u662f\u865a\u710a\u9020\u6210\u7684\uff0c\u8fd9\u70b9\u8981\u6ce8\u610f;<\/p>\n
\n\t\u7b2c\u4e09\u70b9\uff1a\u6211\u7528STC89C52\u4e5f\u78b0\u5230\u8fc7\u7c7b\u4f3c\u7684\u95ee\u9898\uff0c\u6362\u4e86\u5757\u6676\u632f\u5c31OK\u4e86\uff0c\u597d\u50cfSTC\u8d77\u632f\u4e0d\u6a61AT89S52\u90a3\u4e48\u987a\u3002<\/p>\n
\n\t\u5176\u5b9e\u5bf9\u4e8eSTC89C52\u53ef\u4ee5\u76f4\u63a5\u770b30\u811a\uff08ALE\uff09\uff0c\u63a5\u4e2a\u706f\uff0c\u8d77\u632f\u4e00\u4e0b\u5b50\u5c31\u80fd\u770b\u51fa\u6765\u4e86\u3002<\/p>\n
\n\t14\u3001\u6211\u7528msp430\u7684\u5355\u7247\u673a\uff0c\u53ef\u662f\u5916\u90e8\u7684\u4e24\u4e2a\u6676\u632f\u603b\u662f\u65e0\u6cd5\u8d77\u632f\uff0c\u6ca1\u7528\u3002\u8bf7\u95ee\u662f\u4ec0\u4e48\u539f\u56e0\uff1f\u7ebf\u8def\u8fde\u63a5\u662f\u5bf9\u7684\uff0c32768HZ\u6ca1\u6709\u63a5\u5916\u63a5\u7535\u5bb9\u30028M\u7684\u6676\u632f\u63a556PF\u7684\u7535\u5bb9\u3002<\/p>\n
\n\t\u7b54\uff1a32.768K\u7684\u6676\u632f\u63a5\u4e24\u4e2a30P\u7684\u7535\u5bb9\u8bd5\u8bd5\uff0c\u8fd8\u67098M\u7684\u6676\u632f\u7684\u7535\u5bb9\u4e5f\u6362\u621030P\u7684\u3002<\/p>\n
\n\t15\u3001MSP430\u5355\u7247\u673a8MHz\u7684\u6676\u632f\uff0c\u8ba1\u6570\u5668TAR\u589e\u52a0\u4e00\u6b21 \u9700\u8981\u591a\u5c11\u65f6\u95f4\uff1f<\/p>\n
\n\t\u7b54\uff1aMSP430\u5355\u7247\u673a\u7684\u6676\u632f\u9891\u7387\u53ef\u4ee5\u81ea\u5df1\u8bbe\u7f6e\u7684\uff0c\u662f\u4f7f\u7528\u5916\u90e8\u6676\u632f\u8fd8\u662f\u5185\u90e8\u632f\u8361\u5668<\/u>\u505a\u59cb\u7ec8\u6e90\uff0c\u8fd8\u6709MCLK\uff0cSMCLK\uff0cACLK\u7684\u9009\u62e9\uff0c\u5206\u4e0d\u5206\u9891\u7b49\u90fd\u6709\u5f71\u54cd \u6211\u73b0\u5728\u6709\u70b9\u5fd8\u4e86\uff0c\u4e0d\u8fc7\u4f60\u53ef\u4ee5\u770b\u770b\u6587\u6863\uff0c\u8ba1\u6570\u5668\u662f\u4f7f\u7528mclk\uff0csmclk\uff0cACLK\u7684\u54ea\u4e00\u4e2a\uff0c\u5728\u5224\u65ad\u662f\u5426\u5206\u9891\u8bbe\u7f6e\uff0c\u4e00\u822c\u57281Mhz TAR\u52a0\u4e00\u6b21\u662f1us\uff0c\u90a3\u4e488M\u662f1\/8us\u81ea\u5df1\u7b97\u5427\u3002<\/p>\n
\n\t16\u3001\u5982\u679cMSP430\u5355\u7247\u673a\u4e0d\u521d\u59cb\u5316\u6676\u632f\uff0c\u90a3\u4e48\u5355\u7247\u673a\u7528\u4ec0\u4e48\u4f5c\u4e3a\u65f6\u949f\uff1fDCO\u7684\u9891\u7387\u5927\u6982\u662f\u591a\u5c11\u5462\uff1f<\/p>\n
\n\t\u7b54\uff1a\u5185\u90e8DCO\uff0c\u4e0d\u540c\u7cfb\u5217\u7684DCO\u9ed8\u8ba4\u9891\u7387\u4e0d\u540c\uff0c\u8981\u53c2\u770b\u624b\u518c\u30024\u7cfb\u5217\u7684\u597d\u50cf\u662f1M\u3002<\/p>\n
\n\t17\u3001\u6ca1\u6709\u7a0b\u5e8f\u7684\u7a7a\u767d\u5355\u7247\u673a\uff0c\u5916\u90e8\u6676\u632f\u80fd\u8d77\u632f\u4e48\uff1f<\/p>\n
\n\t\u7b54\uff1a\u6ca1\u6709\u5185\u90e8\u6676\u632f\u7684\u5355\u7247\u673a\uff0c\u5916\u90e8\u6676\u632f\u53ef\u4ee5\u8d77\u632f\uff0c\u5982\u4f20\u7edf\u7c7bMS51\u7cfb\u5217\u5355\u7247\u673a\u6709\u5185\u90e8\u6676\u632f\u7684\u5355\u7247\u673a\uff0c\u5916\u90e8\u6676\u632f\u4e0d\u4f1a\u8d77\u632f\uff0c\u9700\u8981\u5bf9\u5916\u90e8\u6676\u632f\u8fdb\u884c\u914d\u7f6e\u540e\u624d\u4f1a\u8d77\u632f\uff0c\u5982\u679c\u4e0d\u5bf9\u5916\u90e8\u6676\u632f\u8fdb\u884c\u914d\u7f6e\u4ecd\u4f7f\u7528\u5185\u90e8\u6676\u632f\uff0c\u5982silicon lab\u7cfb\u5217c8051f**\u5355\u7247\u673a<\/p>\n
\n\t18\u3001dspi<\/u>c30f6014\u5355\u7247\u673a\u80fd\u591f\u70e7\u5199\u7a0b\u5e8f\uff0c\u5374\u4e0d\u80fd\u8fd0\u884c\u3002\u6676\u632f\u6ca1\u6709\u8d77\u632f\uff08\u6362\u8fc7\u4e86\u4e5f\u6ca1\u7528\uff09\uff0c\u590d\u4f4d\u7535\u538b\u6d4b\u91cf\u4e3a5v\uff0c\u7535\u6e90\u6b63\u5e38\uff0c\uff08\u662f\u6210\u719f\u4ea7\u54c1\uff0c\u53ea\u662f\u5076\u5c14\u4f1a\u51fa\u73b0\u8fd9\u79cd\u60c5\u51b5\uff09<\/p>\n
\n\t\u7b54\uff1a01\u3001\u91cd\u65b0\u68c0\u8ba8\u632f\u8361\u7535\u8def\u6240\u7528\u96f6\u4ef6\uff08\u6676\u632f\u4e0e\u7535\u5bb9\uff09\u53ca\u6676\u632f\u9644\u8fd1\u7684pcb\u5e03\u5c40<\/p>\n
\n\t02\u3001\u68c0\u67e5\u914d\u7f6e\u4f4d\u662f\u5426\u6b63\u786e<\/p>\n
\n\t03\u3001\u8fd8\u53ef\u627e FAE \u8c18\u8be2<\/p>\n
\n\t19\u3001\u4e3a\u4ec0\u4e48at89c52 P1.0\u8f93\u51fa2.5v\u7535\u538b\uff0c\u5355\u7247\u673a\u597d\u50cf\u672a\u5de5\u4f5c\uff0c\u6676\u632f\u6ce2\u5f62\u662f\u4e0d\u89c4\u5219\u7684\u6b63\u5f26\u6ce2\u53ef\u4e0d\u53ef\u4ee5\uff1f\u7ebf\u8def\u677f\u6ca1\u6709\u8fbe\u5230\u9884\u60f3\u6548\u679c\uff0c\u53d1\u5149\u4e8c\u6781\u7ba1<\/u>\u4e00\u76f4\u4eae\uff0c\u611f\u89c9\u8fd8\u662f\u5355\u7247\u673a\u7684\u95ee\u9898\uff0cP1.0\u8f93\u51fa2.5v\u7535\u538b\uff0c\u770b\u95e8\u72d7<\/u>\u7528\u7684X5045\uff0c\u4e0d\u77e5\u4f55\u539f\u56e0\u627e\u4e86\u597d\u51e0\u5929\u4e86\u3002<\/p>\n
\n\t\u7b54\uff1a\u5c06\u770b\u95e8\u72d7\u62ff\u6389\uff0c\u6682\u65f6\u505a\u6210\u6700\u5c0f\u7cfb\u7edf\uff0c\u65e2\u53ea\u6709\u7535\u6e90\u30018952\u3001\u6676\u632f\u548c\u4e24\u53ea30P\u5de6\u53f3\u7684\u7535\u5bb9\u3002<\/p>\n
\n\t1. \u5c06P1.0\u53e3\u7f6e1\uff0c\u6d4b\u8bd5\u8be5\u53e3\u7684\u7535\u538b\u662f\u5426\u57282.5V\u4ee5\u4e0a;<\/p>\n
\n\t2. \u5c06P1.0\u53e3\u7f6e0\uff0c\u6d4b\u8bd5\u6539\u53e3\u7535\u538b\u662f\u5426\u7ea6\u4e3a0V\u3002<\/p>\n
\n\t\u662f\u7684\u8bdd\u5c31\u662fOK\u7684\uff0c\u5426\u5219\u5c31\u8981\u770b\u770b\u7535\u6e90\u7535\u538b\u3001\u6676\u632f\u30018952\u4e86\u3002\u7535\u6e90\u7535\u538b\u662f5+\u3001-0.25V\uff0c\u4e14\u7eb9\u6ce2\u4e00\u5b9a\u8981\u5c0f<\/p>\n
\n\t20\u3001\u5355\u7247\u673a\u6d4b\u8bd5\u6676\u632f\u7535\u538b\u65f6\u4f1a\u5bf9\u5de5\u4f5c\u72b6\u6001\u6709\u5f71\u54cd\u5417\uff1f<\/p>\n
\n\t\u6211\u768451\u5355\u7247\u673a\u4eceP2\u53e3\u8fde\u4e86\u4e24\u4e2a\u53d1\u5149\u4e8c\u6781\u7ba1<\/u>\uff0c\u6b63\u5e38\u65f6\u662f\u53ea\u6709\u4e00\u4e2a\u4eae\u3002\u6211\u63d2\u4e0a\u7535\u6e90\u540e\uff0c\u7ed3\u679c\u4e24\u4e2a\u90fd\u4eae\u4e86\u3002\u4e8e\u662f\u6211\u5c31\u6d4b\u91cf\u6676\u632f\u7535\u538b\uff0c\u4f46\u662f\u6211\u9ed1\u8868\u7b14\u63a5\u5730\uff0c\u7ea2\u8868\u7b14\u4e00\u78b0\u6676\u632f\u5f15\u811a\u65f6\uff0c\u4e24\u4e2a\u53d1\u5149\u4e8c\u6781\u7ba1\u4e2d\uff0c\u5c31\u6709\u4e00\u4e2a\u4f1a\u7184\u706d\uff0c\u4e00\u653e\u5f00\u5c31\u4e24\u4e2a\u90fd\u4eae\u3002<\/p>\n
\n\t\u6bcf\u6b21\u521a\u63d2\u7535\u6e90\u7684\u65f6\u5019\uff0c\u4e24\u4e2a\u6676\u632f\u5f15\u811a\u5206\u522b\u65f61.9V\uff0c1.5v\uff0c\u4f46\u662f\u7a0d\u5fae\u8fc7\u4e86\u4e00\u4f1a\u513f\uff0c\u4e24\u4e2a\u5f15\u811a\u5c31\u5206\u522b\u6210\u4e865.4V\u548c0.02V\u4e86\u3002<\/p>\n
\n\t\u7b54\uff1a\u4f1a\u6709\u4e00\u70b9\u5f71\u54cd\uff0c\u5bf9\u9891\u7387\u4f1a\u6709\u5f71\u54cd\uff0c\u4e25\u91cd\u7684\u4f1a\u5bfc\u81f4\u6676\u632f\u505c\u632f\u3002\u56e0\u4e3a\u4f60\u4e07\u7528\u8868<\/u>\u4e00\u52a0\u4e0a\u53bb\u76f8\u5f53\u4e8e\u5728\u632f\u8361\u7535\u8def\u4e0a\u53c8\u5e76\u4e0a\u6216\u4e32\u4e0a\u4e86\u5206\u90e8\u7535\u5bb9\u7535\u963b\u7535\u611f<\/u>\u7b49\uff0c\u5c31\u5f71\u54cd\u5230\u4e86\u539f\u6765\u7535\u8def\u7684\u72b6\u6001\u3002<\/p>\n
\n\t21\u3001\u5236\u4f5cmax232\u4e0b\u8f7d\u5355\u7247\u673a\uff0c\u5de5\u4f5c\u7535\u538b\u90fd\u6b63\u5e38\uff0c\u8981\u5916\u52a0\u6676\u632f\u561b\uff1fc<\/p>\n
\n\t\u7b54\uff1a\u5f53\u7136\u8981\u52a0\uff0c\u5982\u679c\u6ca1\u6709\u5916\u52a0\u6676\u632f\uff0c\u90a3\u4e48\u5355\u7247\u673a\u7684\u65f6\u949f\u7535\u8def\u5c31\u6ca1\u6709\u4e86\uff0c\u5bfc\u81f4\u5355\u7247\u673a\u4e32\u53e3\u5c31\u4e0d\u80fd\u8fdb\u884c\u6570\u636e\u4f20\u8f93\u4e86\uff0c\u6700\u7ec8\u4f60\u8fd9\u4e2a\u4e0b\u8f7d\u5668\u5177\u5c31\u4e0d\u80fd\u4e0b\u8f7d\u7a0b\u5e8f\u4e86\u3002<\/p>\n
\n\t22\u3001\u9759\u6001\u5de5\u4f5c\u70b9\u5bf9\u6676\u632f\u632f\u8361\u6709\u4ec0\u4e48\u5f71\u54cd\uff1f<\/p>\n
\n\t\u7b54\uff1a \u5177\u6709\u9ad8Q\u503c\u7684\u6676\u632f\u5bf9\u653e\u5927\u5668\u7684\u9009\u62e9\u5e76\u4e0d\u654f\u611f\uff0c\u4f46\u5728\u8fc7\u9a71\u52a8\u65f6\u5f88\u5bb9\u6613\u4ea7\u751f\u9891\u7387\u6f02\u79fb\uff08\u751a\u81f3\u53ef\u80fd\u635f\u574f\uff09\u3002\u5f71\u54cd\u632f\u8361\u5668\u5de5\u4f5c\u7684\u73af\u5883\u56e0\u7d20\u6709\uff1a\u7535\u78c1\u5e72\u6270\uff08EMI\uff09\u3001\u673a\u68b0\u9707\u52a8\u4e0e\u51b2\u51fb<\/p>\n
\n\t23\u3001\u6211\u7528\u7684\u662f\u5916\u7f6e4M\u6676\u632f\u52a0\u4e24\u4e2a30pf\u74f7\u7247\u7535\u5bb9\uff0c\u7528\u793a\u6ce2\u5668\u6d4b\u9891\u7387\u6b63\u5e38\uff0c\u4f46\u5cf0\u5cf0\u503c\u6709\u7684\u677f\u5b50\u662f6V\u5de6\u53f3\uff0c\u6709\u7684\u662f3V\u5de6\u53f3\uff0c\u677f\u5b50\u529f\u80fd\u6b63\u5e38\u4f46\u6211\u6015\u7535\u538b\u4f4e\u7684\u4e0d\u7a33\u5b9a\uff0c\u4e0d\u77e5\u9053 \u6676\u632f\u6d4b\u8bd5\u6709\u6ca1\u6709\u4f9d\u636e\u53ef\u67e5\u6216\u76f8\u5173\u8d44\u6599\uff0c\u591a\u8c22\u5927\u5bb6\u5566\uff01\uff01\uff01<\/p>\n
\n\t\u7b54\uff1a \u6ca1\u5173\u7cfb\u7684\u3002\u5cf0\u5cf0\u503c\u4e0d\u540c\u662f\u7535\u5bb9\u548c\u6676\u632f\u7684\u53c2\u6570\u79bb\u6563\u5bfc\u81f4\u7684\u3002\u53ea\u8981\u6b63\u5e38\u5de5\u4f5c\uff0c\u5c31\u53ef\u4ee5\u3002\u5355\u7247\u673a\u91cc\u9762\u90fd\u6709\u653e\u5927\u5904\u7406\u7684\uff0c\u5b83\u4eec\u90fd\u662f\u653e\u5927\u5c55\u6210\u65b9\u6ce2\u6765\u4f7f\u7528\u7684\u3002\u5cf0\u5cf0\u503c\u591a\u9ad8\u90fd\u6ca1\u7528\u3002<\/p>\n
\n\t\u4f60\u90a3\u7535\u538b\u9ad8\u7684\u5012\u5e94\u8be5\u770b\u770b\uff0cpic\u4e00\u822c\u5de5\u4f5c\u7535\u538b\u662f5V\uff0c\u600e\u4e48\u632f\u8361\u5668\u4f1a\u8fdb\u6765\u8fd9\u4e48\u9ad8\u7535\u538b\uff1f \u6211\u4e00\u822c\u90fd\u662f\u5728CPU<\/u>\u6676\u632f\u8f93\u5165\u7aef\u4e32\u8054\u4e00\u4e2a\u7535\u963b\u4f7f\u7528\u7684\u3002<\/p>\n
\n\t24\u3001\u6211\u7528\u7684\u662f\u5916\u7f6e4M\u6676\u632f\u52a0\u4e24\u4e2a30pf\u74f7\u7247\u7535\u5bb9\uff0c\u7528\u793a\u6ce2\u5668\u6d4b\u9891\u7387\u6b63\u5e38\uff0c\u4f46\u5cf0\u5cf0\u503c\u6709\u7684\u677f\u5b50\u662f6V\u5de6\u53f3\uff0c\u6709\u7684\u662f3V\u5de6\u53f3\uff0c\u677f\u5b50\u529f\u80fd\u6b63\u5e38\u4f46\u6211\u6015\u7535\u538b\u4f4e\u7684\u4e0d\u7a33\u5b9a\uff0c\u4e0d\u77e5\u9053 \u6676\u632f\u6d4b\u8bd5\u6709\u6ca1\u6709\u4f9d\u636e\u53ef\u67e5\u6216\u76f8\u5173\u8d44\u6599\uff0c\u591a\u8c22\u5927\u5bb6\u5566\uff01\uff01\uff01<\/p>\n
\n\t\u7b54\uff1a \u6ca1\u5173\u7cfb\u7684\u3002\u5cf0\u5cf0\u503c\u4e0d\u540c\u662f\u7535\u5bb9\u548c\u6676\u632f\u7684\u53c2\u6570\u79bb\u6563\u5bfc\u81f4\u7684\u3002\u53ea\u8981\u6b63\u5e38\u5de5\u4f5c\uff0c\u5c31\u53ef\u4ee5\u3002\u5355\u7247\u673a\u91cc\u9762\u90fd\u6709\u653e\u5927\u5904\u7406\u7684\uff0c\u5b83\u4eec\u90fd\u662f\u653e\u5927\u5c55\u6210\u65b9\u6ce2\u6765\u4f7f\u7528\u7684\u3002\u5cf0\u5cf0\u503c\u591a\u9ad8\u90fd\u6ca1\u7528\u3002<\/p>\n
\n\t\u4f60\u90a3\u7535\u538b\u9ad8\u7684\u5012\u5e94\u8be5\u770b\u770b\uff0cpic\u4e00\u822c\u5de5\u4f5c\u7535\u538b\u662f5V\uff0c\u600e\u4e48\u632f\u8361\u5668\u4f1a\u8fdb\u6765\u8fd9\u4e48\u9ad8\u7535\u538b\uff1f<\/p>\n
\n\t\u6211\u4e00\u822c\u90fd\u662f\u5728CPU\u6676\u632f\u8f93\u5165\u7aef\u4e32\u8054\u4e00\u4e2a\u7535\u963b\u4f7f\u7528\u7684\u3002<\/p>\n
\n\t25\u3001pic\u5355\u7247\u673a AD\u91c7\u6837\u7a0b\u5e8f \u6709\u6e90\u6676\u632f\u5e94\u8be5\u5982\u4f55\u9009\u62e9\uff1f<\/p>\n
\n\t\u5982\u679c\u4f7f\u7528\u7247\u5185\u632f\u8361\u5668\uff0c\u662f\u4e0d\u662f\u5fc5\u987b\u8981\u5916\u63a5\u8c10\u632f\u5668<\/u>\uff1f<\/p>\n
\n\t\u6211\u5982\u679c\u5916\u63a5\u6709\u6e90\u6676\u632f\uff0c\u9009\u7528\u90a3\u79cd\u9891\u7387\u8f83\u597d\uff1f\u6211\u542c\u8bf44MHz\u7684\u5e76\u4e0d\u7406\u60f3\u3002\u5916\u63a520MHz\u7684\u53ef\u4ee5\u5417\uff1f\u8fd9\u4e2a\u662f\u600e\u6837\u9009\u62e9\u7684\u554a\u3002<\/p>\n
\n\t\u7b54\uff1a\u7528\u7247\u5185\u632f\u8361\u5668\u4e0d\u9700\u8981\u5916\u63a5\u8c10\u632f\u5668\u3002<\/p>\n
\n\t\u5982\u679c\u4f60\u7684\u5355\u7247\u673a\u53ea\u505aAD\u91c7\u96c6\u8f6c\u6362\uff0c\u90a3\u5c31\u4e0d\u9700\u8981\u592a\u9ad8\u7684\u9891\u7387\uff0c\u5185\u90e84Mhz\u632f\u8361\u5668\u5373\u53ef\u3002<\/p>\n
\n\t\u4f46\u5982\u679c\u8fd8\u8981\u505a\u5176\u4ed6\u5bf9\u65f6\u5e8f\u8981\u6c42\u8f83\u4e25\u7684\u5de5\u4f5c\u6bd4\u5982\u8bf4\u603b\u7ebf\u901a\u4fe1\uff0c\u90a3\u5c31\u8981\u8003\u8651\u4f7f\u7528\u5916\u90e8\u632f\u8361\u5668\uff0c\u56e0\u4e3a\u5185\u90e8\u632f\u8361\u5668\u7684\u8bef\u5dee\u592a\u5927\uff08\u5373\u4f7f\u6821\u51c6\u4e86\u8fd8\u67091%\u7684\u8bef\u5dee\uff09 \uff0c\u800c\u7528\u591a\u5927\u7684\u6676\u632f\u8981\u770b\u5de5\u4f5c\u8981\u6c42\uff0c\u9891\u7387\u8d8a\u9ad8\u5355\u7247\u673a\u529f\u8017\u8d8a\u5927\u3002\u4f46\u53ea\u505aAD\u7684\u8bdd\uff0c4M\u591f\u4e86\u3002<\/p>\n
\n\t26\u3001\u5927\u5bb6\u597d\u3002\u6211\u60f3\u95ee\u4e2apic\u5355\u7247\u673a\u7684\u95ee\u9898\uff1a\u6676\u632f\u9891\u7387\u4e0d\u4e00\u6837\u3002\u7f16\u8bd1\u5668\u81ea\u5df1\u5e26\u7684\u5e93\u5ef6\u65f6\u51fd\u6570\u5ef6\u65f6\u4e00\u6837\u5417\uff1f\u6bd4\u5982\u6676\u632f20MHZ delayus\uff081\uff09\u548c5MHZ delayus\uff081\uff09\u662f\u540c\u662f1us\u5417\uff1f<\/p>\n
\n\t\u7b54\uff1a \u5e94\u8be5\u4e00\u6837\u3002<\/p>\n
\n\t\u56e0\u4e3a\u9891\u7387\u4e0d\u4e00\u6837\uff0c\u7f16\u8bd1\u65f6\u5019\u4f60\u7684\u8bbe\u7f6e\u4e0d\u4e00\u6837\uff0c\u7f16\u8bd1\u65f6\u5019\u81ea\u7136\u8ba1\u7b97\u9700\u8981\u7684\u500d\u6570\uff0c\u53c2\u6570\u5c31\u4e0d\u4e00\u6837\u4e86\u3002<\/p>\n
\n\t\u4f46\u53ef\u80fd\u56e0\u4e3a\u9891\u7387\u9664\u4e0d\u5c3d\u7684\u7f18\u6545\uff0c\u6709\u4e00\u70b9\u70b9\u5dee\u5f02<\/p>\n
\n\t27\u3001\u5355\u7247\u673a\u5916\u63a524M\u7684\u6676\u632f\uff0c1ms\u7684\u57fa\u51c6\u5ef6\u65f6\u51fd\u6570\u7528C\u8bed\u8a00\u600e\u4e48\u5199\uff1f<\/p>\n
\n\t\u7b54\uff1a\u5b9a\u65f6\u5668<\/u>T0 \u5de5\u4f5c\u65b9\u5f0f1 \u6676\u632f\u9891\u738724MHz<\/p>\n
\n\t\u5b9a\u65f6\u5668\u6700\u5927\u5b9a\u65f6\u65f6\u95f4\uff08us\uff09\uff1a32768<\/p>\n
\n\t\u5b9a\u65f6\u5668\u6700\u5c0f\u5b9a\u65f6\u65f6\u95f4\uff08us\uff09\uff1a0.5<\/p>\n
\n\t\u30101ms\u7cbe\u786e\u5b9a\u65f6C51\u4ee3\u7801\u3011<\/p>\n
\n\tvoid T0_init\uff08void\uff09 \/\/\u5b9a\u65f6\u5668\u521d\u59cb\u5316<\/p>\n
\n\t{<\/p>\n
\n\tTMOD |= 0x01;<\/p>\n
\n\tTH0 = 0xf8; \/\/\u8bbe\u7f6e\u5b9a\u65f6\u5668\u8ba1\u6570\u521d\u503c\uff0c\u5b9a\u65f61000us<\/p>\n
\n\tTL0 = 0x33;<\/p>\n
\n\tIE |= 0x82; \/\/\u6253\u5f00\u603b\u4e2d\u65ad<\/p>\n
\n\tTR0 = 1; \/\/\u542f\u52a8\u5b9a\u65f6\u5668<\/p>\n
\n\t}<\/p>\n
\n\tvoid T0_intservice\uff08void\uff09 inte<\/u>rrupt 1 \/\/\u5b9a\u65f6\u5668\u4e2d\u65ad\u670d\u52a1<\/p>\n
\n\t{<\/p>\n
\n\tTH0 = 0xf8; \/\/\u91cd\u88c5\u8f7d\u5b9a\u65f6\u5668\u8ba1\u6570\u521d\u503c<\/p>\n
\n\tTL0 = 0x33;<\/p>\n
\n\t\/\/\u8fd9\u91cc\u53ef\u4ee5\u63d2\u5165\u5176\u4ed6\u5904\u7406\u7a0b\u5e8f\uff0c\u4e0d\u4f1a\u5f71\u54cd\u5b9a\u65f6\u5668\u5de5\u4f5c<\/p>\n
\n\t}<\/p>\n
\n\t28\u3001\u5355\u7247\u673a24M\u6676\u632f\u53ef\u4ee5\u6d4b\u91cf20MHZ\u7684\u4fe1\u53f7\u5417<\/p>\n
\n\t\u7b54 \uff1a\u8981\u770b\u7528\u4ec0\u4e48\u5355\u7247\u673a\u4e86\u3002\u6709\u4e9b\u5355\u7247\u673a\u6267\u884c\u4e00\u6761\u6307\u4ee4\u9700\u8981\u4e24\u4e2a\u673a\u5668\u5468\u671f\u4ee5\u4e0a\u7684\u3002\u90a3\u80af\u5b9a\u6d4b\u91cf\u4e0d\u523020MHZ\u7684\u4fe1\u53f7\u3002<\/p>\n
\n\t29\u3001\u7528\u5355\u7247\u673a\u7684\u6676\u632f\u7535\u8def\u4ea7\u751f\u4fe1\u53f7\u548c555\u8ba1\u65f6<\/u>\u5668\u4ea7\u751f\u4fe1\u53f7\u54ea\u4e2a\u66f4\u597d\uff1f<\/p>\n
\n\t\u7b54\uff1a\u4e00\u822c\u6765\u8bf4\uff0c\u6676\u632f\u7684\u7a33\u5b9a\u6027\u597d\u4e8eRC\u9707\u8361\u5668\u3002<\/p>\n
\n\t30\u3001\u7528\u4ec0\u4e48\u7535\u8def\u80fd\u8ba932768\u7684\u6676\u632f\u4ea7\u751f32768\u7684\u65b9\u6ce2\u4fe1\u53f7\uff1f<\/p>\n
\n\t\u7b54 \uff1a\u7528\u6216\u975e\u95e8\uff0c\u4e5f\u53ef\u4ee5\u5b8c\u6210 \u632f\u8361\u548c\u65b9\u6ce2\u6574\u5f62 \u7684\u4efb\u52a1\u3002\u7535\u8def\u5982\u63d2\u56fe\u6240\u793a\u3002<\/p>\n
\n\t\u56fe\u4e2d\u7684\u6676\u632f\uff0c\u539f\u4e3a38000Hz\uff0c\u5982\u6539\u4e3a32768Hz\uff0c\u4e5f\u5b8c\u5168\u6b63\u5e38\u53ef\u4ee5\u5de5\u4f5c\u3002<\/p>\n
\n\t31\u3001\u6676\u632f\u7684\u539f\u7406\uff0c\u5982\u4f55\u4ea7\u751f\u6b63\u5f26\u4fe1\u53f7\u7684\uff0c\u8be6\u7ec6\u4e00\u70b9\uff0c\u4ece\u7535\u8def\u65b9\u9762\u5206\u6790\uff1f<\/p>\n
\n\t\u7b54\uff1a\u6676\u4f53\u53ef\u4ee5\u7b49\u6548\u4e3a\u4e00\u4e2a\u7535\u611f\uff0c\u4e0e\u91cc\u9762\u7684\u7535\u5bb9\u5f62\u6210\u632f\u8361\u56de\u8def\uff0c\u80fd\u91cf\u4ece\u7535\u611f\u6162\u6162\u5230\u7535\u5bb9\uff0c\u518d\u4ece\u7535\u5bb9\u6162\u6162\u5230\u7535\u611f\uff0c\u5468\u800c\u590d\u59cb\u5f62\u6210\u632f\u8361\u3002\u6b63\u534a\u5468\u662f\u7535\u5bb9\u7684\u5145\u653e\u7535\u8fc7\u7a0b\uff0c\u8d1f\u534a\u5468\u662f\u7535\u611f\u7684\u5145\u653e\u7535\u8fc7\u7a0b\u3002<\/p>\n
\n\t32\u300111.0952\u7684\u6676\u632f\u548c\u5355\u7247\u673a\u54ea\u4e9b\u5f15\u811a\u8fde\u63a5\u80fd\u8d77\u4f5c\u7528\uff1f\u7535\u6e90\u548c18B20\u5e94\u8be5\u548c\u5355\u7247\u673a\u7684\u54ea\u4e9b\u5f15\u811a\u76f8\u8fde\u5462\uff1fRT\uff0c\u8981\u628a\u5355\u7247\u673a\u4ece\u5b9e\u9a8c\u677f\u4e0a\u5f15\u51fa\u6765\uff0c\u5e94\u8be5\u600e\u4e48\u8fde\u63a5\uff1f1602LCD\u7684\u6db2\u6676\u8be5\u600e\u4e48\u548c\u5355\u7247\u673a\u76f8\u8fde\u5462\uff1f\u6bcf\u6b21\u4ece\u4eff\u771f\u4e0a\u8fde\u51fa\u6765\u90fd\u662f\u53ea\u6709\u80cc\u5149\u548c\u9ed1\u70b9\uff0c\u4f46\u662f\u4e0d\u663e\u793a\u5df2\u7ecf\u70e7\u5f55\u7684\u7a0b\u5e8f\u3002<\/p>\n
\n\t\u7b54\uff1a\u6676\u632f\u63a5\u5355\u7247\u673ax1\uff08\u6216\u8005\u53ebXTAL1\uff09\u548cx2\uff08\u6216\u8005\u53ebXTAL2\uff09\u5f15\u811a\u3002<\/p>\n
\n\t\u7535\u6e90\u63a5\u5355\u7247\u673a\u7684VCC\u548cGND\u3002<\/p>\n
\n\t18b20\u7535\u6e90\u811a\u63a5\u7535\u6e90\u4e0a\uff0c\u4e2d\u95f4\u7684\u6570\u636e\u7ebf\u53ef\u4ee5\u5355\u7247\u673a\u7684\u4efb\u610fio\u53e3\u3002\u5177\u4f53\u63a7\u5236\u662f\u9760\u7a0b\u5e8f\u5b8c\u6210\u7684\u3002<\/p>\n
\n\t1602\u7684\u6570\u636e\u7ebf\u63a5\u5355\u7247\u673aio\uff08\u6bd4\u598251\u5355\u7247\u673a\u7684P1\u53e3\uff09\uff0c\u5176\u5b83\u7684\u63a7\u5236\u7ebfrw\uff0creset\uff0ccs\u7b49\u53ef\u4ee5\u63a5\u5355\u7247\u673a\u7684\u4efb\u610fio\u53e3\u3002<\/p>\n
\n\t\u70e7\u5f55\u4e86\u7a0b\u5e8f\u4e0d\u80fd\u8fd0\u884c\uff0c\u800c\u7a0b\u5e8f\u662f\u6b63\u786e\u7684\u8bdd\uff0c\u4f60\u5f97\u770b\u7a0b\u5e8f\u600e\u4e48\u5b9a\u4e49\u8fd9\u4e9b\u5f15\u811a\uff0c\u6839\u636e\u7a0b\u5e8f\u5b9a\u4e49\u8fde\u63a5\u5355\u7247\u673a\u7684\u4f4d\u7f6e\u3002<\/p>\n
\n\t33\u3001\u6211\u73b0\u5728\u8981\u752852\u5355\u7247\u673a\u505a\u4e00\u4e2a\u4ea4\u901a\u706f\u7535\u8def\u3002\u8981\u6c42\u662f\u7ea2\u706f\uff0c\u7eff\u706f30s\uff0c\u9ec4\u706f3s\u3002\u5faa\u73af\u53d8\u5316\u3002\u90a3\u4e48\u5916\u754c\u6676\u632f\u600e\u6837\u9009\u62e9\uff1f\u5355\u6307\u4ee4\u5468\u671f\u591a\u5c11\u6bd4\u8f83\u5408\u9002\uff1f\u56fe\u4e2d\u5916\u63a5\u7684\u4e24\u4e2a\u7535\u5bb9\u7684\u4f5c\u7528\u662f\u4ec0\u4e48\uff1f\u5927\u5c0f\u591a\u5c11\u5408\u9002\uff1f<\/p>\n
\n\t\u7b54\uff1a \u5982\u679c\u9009\u62e9\u6676\u632f\u7684\u8bdd\uff0c\u90a3\u4e24\u4e2a\u7535\u5bb9\u503c\u53ef\u4ee5\u9009\u62e9\uff1a30\u52a0\u51cf10PF\u5de6\u53f3\u7684\uff08\u9891\u7387\u57280~33MHZ\u4e4b\u95f4\uff09;<\/p>\n
\n\t\u5982\u679c\u9009\u62e9\u9676\u74f7\u6676\u632f\u7684\u8bdd\uff0c\u7535\u5bb9\u503c\u53ef\u4ee5\u9009\u62e9\uff1a40\u52a0\u51cf10PF\u5de6\u53f3\u7684\uff08\u9891\u7387\u57281.2~12MHZ\uff09\u632f\u8361\u5668\u5e94\u5c3d\u91cf\u9760\u8fd1\u7535\u5bb9\u3002\u6307\u4ee4\u5468\u671f\u662f\u53ef\u4ee5\u7b97\u7684\uff0c\u8fd9\u4e2a\u662f\u6709\u516c\u5f0f\u7684\uff01<\/p>\n
\n\t34\u300189c52\u5355\u7247\u673a\u5982\u679c\u4e0d\u63a5\u6676\u632f\u4f1a\u6709\u4ec0\u4e48\u540e\u679c\uff1f<\/p>\n
\n\t\u7b54\uff1a\u5355\u7247\u673a\u4e0d\u5de5\u4f5c\u4e86 \u7a0b\u5e8f\u65e0\u6cd5\u70e7\u5165\u3002\u3002\u3002\u3002\u7b49\u7b49<\/p>\n
\n\t35\u3001\u82e589c52\u5355\u7247\u673a\u4f7f\u7528\u5916\u63a5\u6676\u632f\uff0c\u5e94\u5982\u4f55\u8bbe\u7f6e\uff1f<\/p>\n
\n\t\u7b54\uff1a\u6676\u632f\u7684\u4e24\u4e2a\u7ba1\u811a\u5404\u63a5\u4e00\u4e2a20~30pf\u7684\u7535\u5bb9\u540e\u5206\u522b\u63a5\u5165\u5355\u7247\u673a\u7684XTAL1\u548cXTAL2\uff0c\u4e24\u4e2a\u7535\u5bb9\u7684\u53e6\u4e00\u7aef\u5e76\u63a5\u540e\u63a5\u5730\u5373\u53ef\uff0c\u4e0d\u518d\u9700\u8981\u4efb\u4f55\u8bbe\u7f6e<\/p>\n
\n\t36\u300189c52\u5355\u7247\u673a \u6676\u632f\u9891\u7387\u624d12\u5146\uff0c\u592a\u5c0f\u4e86\uff0c\u600e\u6837\u80fd\u6539\u5927\u6676\u632f\u9891\u7387\uff1f<\/p>\n
\n\t\u7b54\uff1a\u5916\u63a518.432\u6216\u800524MHz\u7684\u6676\u632f\u554a\u3002\u6216\u8005\u63624T\u7684W77E58\u5355\u7247\u673a\uff0c\u8fd9\u6837\u76f8\u5f53\u4e8e\u628a\u5de5\u4f5c\u9891\u7387\u63d0\u9ad83\u500d\u3002\u6216\u8005\u63621T\u7684DS89C4XX\u5355\u7247\u673a\uff0c\u8fd9\u76f8\u5f53\u4e8e\u628a\u5de5\u4f5c\u9891\u7387\u63d0\u9ad88\u500d\uff01\u8db3\u591f\u4e86\u5427\uff1f\u75281T\u7684STC12C5A**\u5355\u7247\u673a\u4e5f\u6709\u8fd9\u6837\u7684\u6548\u679c\u3002<\/p>\n
\n\t37\u3001\u5355\u7247\u673a\u5de5\u4f5c\u9891\u7387\u7684\u95ee\u9898\uff0c\u6676\u632f\u5230\u5e95\u600e\u4e48\u9009\u62e9\uff1f<\/p>\n
\n\t\u7b54\uff1a<\/p>\n
\n\t1\u3001\u6700\u57fa\u672c\u7684\u5355\u7247\u673a\uff0c\u5176\u673a\u5668\u5de5\u4f5c\u9891\u7387\u4e3a\uff1a\u6676\u632f\u9891\u7387÷12<\/p>\n
\n\t2\u3001\u6709\u7684\u5355\u7247\u673a\uff08\u9ad8\u7ea7\u4e00\u4e9b\u7684\uff09\u673a\u5668\u5de5\u4f5c\u9891\u7387\u4e3a\uff1a\u6676\u632f\u9891\u7387÷2\uff08\u6216\u80056\u7b49\u7b49\uff09<\/p>\n
\n\t3\u3001\u4ee5\u6c47\u7f16\u8bed\u8a00\u4e3a\u4f8b\uff0c\u5355\u7247\u673a\u6267\u884c\u4e00\u6761\u6307\u4ee4\u9700\u8981\u7684\u65f6\u95f4\u4e3a1~2\u4e2a\u673a\u5668\u5468\u671f\uff08\u673a\u5668\u5468\u671f = 1÷\u673a\u5668\u5de5\u4f5c\u9891\u7387\uff09<\/p>\n
\n\t4\u3001\u4e3e\u4f8b\uff1a<\/p>\n
\n\t\u4e00\u666e\u901a\u5355\u7247\u673a\u6676\u632f12MHz\uff0c\u5176\u673a\u5668\u5de5\u4f5c\u9891\u7387\u4e3a 12MHz÷12 = 1MHz<\/p>\n
\n\t\u5176\u673a\u5668\u5468\u671f = 1÷1MHz = 0.000001\u79d2\uff08\u4e5f\u5c31\u662f10\u7684\u8d1f6\u6b21\u65b9\uff09<\/p>\n
\n\t“MOV”\u6307\u4ee4\u9700\u8981\u4e00\u4e2a\u673a\u5668\u5468\u671f\u6765\u5b8c\u6210\uff0c\u4e5f\u5c31\u662f\u8bf4\u6267\u884c\u8fd9\u6761\u6307\u4ee4\u9700\u8981\u8017\u8d3910\u7684\u8d1f6\u6b21\u65b9\u79d2\uff0c\u8fd9\u4e48\u957f\u7684\u65f6\u95f4\u3002<\/p>\n
\n\t38\u300151\u5355\u7247\u673a\u6676\u632f\u4e0a\u63a5\u7684\u7535\u5bb9\u5927\u5c0f\u8be5\u5982\u4f55\u9009\u62e9\uff1f\u662f\u6676\u632f\u8d8a\u5927\uff0c\u7535\u5bb9\u503c\u4e5f\u8981\u5927\u4e00\u4e9b\u5417\uff0c\u4e00\u822c\u5e38\u7528\u591a\u5927\u7684\u3002\u6709\u4eba\u8bf4\u5e38\u7528\u7684\u4ece15-33pf\uff0c\u5177\u4f53\u5982\u4f55\u9009\u62e9\u6548\u679c\u6700\u597d\uff1f\u6bd4\u5982\u6211\u5206\u522b\u7528\u4e00\u4e2a6M\u548c12M\u7684\u6676\u632f\uff0c\u7528\u591a\u5927\u7535\u5bb9\u66f4\u5408\u9002\uff1f<\/p>\n
\n\t\u7b54\uff1a15-33pf\u90fd\u53ef\u4ee5 \u6211\u4eec\u4e00\u822c\u7528\u7684\u662f15P\u548c30P \u6676\u632f\u5927\u5c0f\u5f71\u54cd\u4e0d\u5927 \u6211\u4eec\u5e38\u7528\u76844M \u548c12M \u4ee5\u53ca11.0592M\u548c20M 24M \u6211\u4eec\u90fd\u7528\u7684 30P \u5355\u7247\u673a\u5185\u90e8\u6709\u76f8\u5e94\u7684\u6574\u5f62\u7535\u8def \u6211\u4eec\u4e0d\u6bd4\u62c5\u5fc3<\/p>\n
\n\t39\u3001\u6211\u7ed951\u5355\u7247\u673a12M\u6676\u632f\u63a52200pF\u7535\u5bb9\u4f1a\u600e\u4e48\u6837\uff1f\u7535\u8def\u56fe\u91cc\u8c8c\u4f3c\u662f22pF\u7684\uff0c\u4f46\u662f\u6211\u6ca1\u670922pF\u7684\u3002..\u63a52200pF\u4f1a\u4e0d\u4f1a\u4e0d\u6b63\u5e38\u5de5\u4f5c\uff1f<\/p>\n
\n\t\u7b54\uff1a\u4e0d\u53ef\u4ee5\uff0c\u6676\u4f53\u4f1a\u4e0d\u5de5\u4f5c\u7684\u300215-33p\u662f\u5408\u7406\u8303\u56f4\u3002\u4f60\u53ef\u4ee5\u8bd5\u8bd5\u770b\uff0c\u5bf9\u5355\u7247\u673a\u4e0d\u4f1a\u6709\u635f\u574f\u3002<\/p>\n
\n\t\u6765\u6e90\uff1b21ic<\/p>\n","protected":false},"excerpt":{"rendered":"
1\u3001 \u5355\u7247\u673a \u6676\u632f \u4e0d\u8d77\u632f\u539f\u56e0\u5206\u6790 \u9047\u5230\u5355\u7247\u673a\u6676\u632f\u4e0d\u8d77\u632f\u662f\u5e38\u89c1\u73b0\u8c61\uff0c\u90a3\u4e48\u5f15\u8d77\u6676\u632f\u4e0d\u8d77\u632f\u7684\u539f\u56e0\u6709\u54ea\u4e9b\u5462\uff1f \uff081\uff09 PCB\u677f \u5e03\u7ebf \u9519\u8bef; \uff082\uff09 \u5355\u7247\u673a\u8d28\u91cf\u6709\u95ee\u9898; \uff083\uff09 \u6676\u632f\u8d28\u91cf\u6709\u95ee\u9898; \uff08<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[14],"tags":[],"_links":{"self":[{"href":"http:\/\/www.szryc.com\/index.php?rest_route=\/wp\/v2\/posts\/2831"}],"collection":[{"href":"http:\/\/www.szryc.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.szryc.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.szryc.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.szryc.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2831"}],"version-history":[{"count":0,"href":"http:\/\/www.szryc.com\/index.php?rest_route=\/wp\/v2\/posts\/2831\/revisions"}],"wp:attachment":[{"href":"http:\/\/www.szryc.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2831"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.szryc.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2831"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.szryc.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2831"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}