{"id":2113,"date":"2019-01-18T08:45:36","date_gmt":"2019-01-18T08:45:36","guid":{"rendered":""},"modified":"2019-01-18T16:45:53","modified_gmt":"2019-01-18T08:45:53","slug":"8051%e5%8d%95%e7%89%87%e6%9c%ba%e4%b8%ad%e6%96%ad%e7%b3%bb%e7%bb%9f%e7%bb%93%e6%9e%84%e5%8f%8a%e4%b8%ad%e6%96%ad%e6%8e%a7%e5%88%b6%e5%8e%9f%e7%90%86","status":"publish","type":"post","link":"http:\/\/www.szryc.com\/?p=2113","title":{"rendered":"8051\u5355\u7247\u673a\u4e2d\u65ad\u7cfb\u7edf\u7ed3\u6784\u53ca\u4e2d\u65ad\u63a7\u5236\u539f\u7406"},"content":{"rendered":"

\n\t\u5f53\u51e0\u4e2a\u4e2d\u65ad\u6e90\u540c\u65f6\u5411CPU<\/u>\u8bf7\u6c42\u4e2d\u65ad\u65f6\uff0c\u6309\u6240\u53d1\u751f\u7684\u5b9e\u65f6\u4e8b\u4ef6\u7684\u8f7b\u91cd\u7f13\u6025\u6392\u961f\uff0c\u4f18\u5148\u5904\u7406\u6700\u7d27\u6025\u4e8b\u4ef6\u7684\u4e2d\u65ad\u8bf7\u6c42\uff0c\u4e8e\u662f\u5355\u7247\u673a<\/u>\u89c4\u5b9a\u6bcf\u4e2a\u4e2d\u65ad\u6e90\u7684\u4f18\u5148\u7ea7\u522b\u3002<\/p>\n

\n\t\u5f53CPU\u6b63\u5728\u5904\u7406\u4e00\u4e2a\u4e2d\u65ad\u8bf7\u6c42\uff0c\u53c8\u53d1\u751f\u53e6\u4e00\u4e2a\u4f18\u5148\u7ea7\u6bd4\u5b83\u9ad8\u7684\u4e2d\u65ad\u8bf7\u6c42\uff0cCPU\u6682\u65f6\u4e2d\u6b62\u5bf9\u524d\u4e00\u4e2d\u65ad\u5904\u7406\uff0c\u8f6c\u800c\u53bb\u5904\u7406\u4f18\u5148\u7ea7\u66f4\u9ad8\u7684\u4e2d\u65ad\u8bf7\u6c42\uff0c\u5f85\u5904\u7406\u5b8c\u540e\uff0c\u518d\u7ee7\u7eed\u6267\u884c\u539f\u6765\u7684\u4e2d\u65ad\u5904\u7406\u7a0b\u5e8f\uff0c\u8fd9\u6837\u7684\u8fc7\u7a0b\u79f0\u4e3a\u4e2d\u65ad\u5d4c\u5957\uff0c\u8fd9\u6837\u7684\u4e2d\u65ad\u7cfb\u7edf\u79f0\u4e3a\u591a\u7ea7\u4e2d\u65ad\u7cfb\u7edf\u3002<\/p>\n

\n\t <\/div>\n

\n\t\u7531\u4e8e\u5916\u754c\u5f02\u6b65\u4e8b\u4ef6\u4e2d\u65adCPU\u6b63\u5728\u6267\u884c\u7684\u7a0b\u5e8f\u65f6\u968f\u673a\u7684\uff0cCPU\u8f6c\u5411\u53bb\u6267\u884c\u4e2d\u65ad\u670d\u52a1\u7a0b\u5e8f\u65f6\uff0c\u9664\u4e86\u786c\u4ef6\u4f1a\u81ea\u52a8\u628a\u65ad\u7535\u5730\u5740\uff0c\u537316\u4f4dPC\u7a0b\u5e8f\u8ba1\u6570\u5668\u7684\u503c\u538b\u5165\u5806\u6808\u4e4b\u5916\uff0c\u7528\u6237\u8fd8\u5f97\u6ce8\u610f\u4fdd\u62a4\u6709\u5173\u5de5\u4f5c\u5bc4\u5b58\u5668<\/u>\uff0c\u7d2f\u52a0\u5668\uff0c\u6807\u5fd7\u4f4d\u7b49\u4fe1\u606f\uff0c\u8fd9\u4e2a\u8fc7\u7a0b\u901a\u5e38\u79f0\u4e3a\u4fdd\u62a4\u73b0\u573a \u3002\u4ee5\u4fbf\u5728\u5b8c\u6210\u4e2d\u65ad\u670d\u52a1\u7a0b\u5e8f\u540e\uff0c\u6062\u590d\u539f\u5de5\u4f5c\u5bc4\u5b58\u5668\uff0c\u7d2f\u52a0\u5668\uff0c\u6807\u5fd7\u4f4d\u7b49\u7684\u5185\u5bb9\uff0c\u8fd9\u4e2a\u8fc7\u7a0b\u79f0\u6062\u590d\u73b0\u573a\uff1b\u6700\u540e\u6267\u884c\u4e2d\u65ad\u8fd4\u56de\u6307\u4ee4\uff0c\u81ea\u52a8\u5f39\u51fa\u65ad\u7535\u5230PC\uff0c\u8fd4\u56de\u4e3b\u7a0b\u5e8f\uff0c\u7ee7\u7eed\u6267\u884c\u88ab\u4e2d\u65ad\u7684\u7a0b\u5e8f\u3002<\/p>\n

\n\t\u4e0b\u9762\u6211\u4eec\u770b\u770b8051\u4e2d\u65ad\u7cfb\u7edf\u7ed3\u6784\u53ca\u4e2d\u65ad\u63a7\u5236\uff1a<\/p>\n

\n\t8051\u5355\u7247\u673a\u6709\u4e94\u4e2a\u4e2d\u65ad\u8bf7\u6c42\u6e90\uff0c\u56db\u4e2a\u7528\u4e8e\u4e2d\u65ad\u63a7\u5236\u7684\u5bc4\u5b58\u5668IE.IP.TCON\u548cSCON\uff0c\u7528\u4e8e\u63a7\u5236\u4e2d\u65ad\u7684\u7c7b\u578b\uff0c\u4e2d\u65ad\u5141\u8bb8\uff0c\u4e2d\u65ad\u8d77\u505c\u548c\u5404\u79cd\u4e2d\u65ad\u6e90\u7684\u4f18\u5148\u7ea7\u522b\u3002<\/p>\n

\n\t\u4e94\u4e2a\u4e2d\u65ad\u6e90\u6709\u4e24\u4e2a\u4f18\u5148\u7ea7\uff0c\u6bcf\u4e2a\u4e2d\u65ad\u6e90\u53ef\u4ee5\u7f16\u7a0b\u4e3a\u9ad8\u4f18\u5148\u7ea7\u6216\u4f4e\u4f18\u5148\u7ea7\u4e2d\u65ad\uff0c\u53ef\u4ee5\u5b9e\u73b0\u4e8c\u7ea7\u4e2d\u65ad\u670d\u52a1\u7a0b\u5e8f\u5d4c\u5957\u30028051\u7684\u4e2d\u65ad\u6e90\u5305\u62ec\uff1aINT0\uff0cINT1\u5f15\u811a\u8f93\u5165\u7684\u5916\u90e8\u4e2d\u65ad\u6e90\uff1b\u4e09\u4e2a\u5185\u90e8\u7684\u4e2d\u65ad\u6e90\uff0c\u5373\u5b9a\u65f6\u5668<\/u>T0\u7684\u6ea2\u51fa\u4e2d\u65ad\u6e90\uff0c\u5b9a\u65f6\u5668T1\u7684\u6ea2\u51fa\u4e2d\u65ad\u6e90\u548c\u4e32\u884c\u53e3\u7684\u53d1\u9001\/\u63a5\u6536\u4e2d\u65ad\u6e90\u3002<\/p>\n

\n\t\u4eceINT0\uff0cINT1\u5f15\u811a\u8f93\u5165\u7684\u4e24\u4e2a\u5916\u90e8\u4e2d\u65ad\u6e90\u548c\u5b83\u4eec\u7684\u89e6\u53d1\u65b9\u5f0f\u63a7\u5236\u4f4d\u9501\u5b58\u5728\u7279\u6b8a\u529f\u80fd\u5bc4\u5b58\u5668TCON\u7684\u4f4e\u56db\u4f4d\uff0c\u5176\u683c\u5f0f\u5982\u4e0b\uff1a<\/p>\n

\n\t\"8051\u5355\u7247\u673a\u4e2d\u65ad\u7cfb\u7edf\u7ed3\u6784\u53ca\u4e2d\u65ad\u63a7\u5236\u539f\u7406\"<\/p>\n

\n\tIE1\uff0c\u5373TCON.3\uff1a\u5916\u90e8\u4e2d\u65adINT1\u8bf7\u6c42\u6807\u5fd7\u4f4d\u3002\u5f53CPU\u68c0\u6d4b\u5230\u5728INT1\u5f15\u811a\u4e0a\u51fa\u73b0\u7684\u5916\u90e8\u4e2d\u65ad\u4fe1\u53f7\u65f6\uff0c\u7531\u786c\u4ef6\u7f6e\u4f4dIE1=1\uff0c\u8bf7\u6c42\u4e2d\u65ad\u3002CPU\u6267\u884c\u4e2d\u65ad\u670d\u52a1\u7a0b\u5e8f\u540e\uff0cIE1\u4f4d\u88ab\u786c\u4ef6\u81ea\u52a8\u6e050.<\/p>\n

\n\tIT1\uff0c\u5373TCON.2\uff1a\u5916\u90e8\u4e2d\u65adINT1\u8bf7\u6c42\u7c7b\u578b\uff0c\u89e6\u53d1\u65b9\u5f0f\u63a7\u5236\u4f4d\uff0c\u7531\u8f6f\u4ef6\u6765\u7f6e1\u6216\u6e050\uff0c\u4ee5\u63a7\u5236\u5916\u90e8\u4e2d\u65ad1\u7684\u89e6\u53d1\u7c7b\u578b\u3002<\/p>\n

\n\tIT1=0\uff0c\u5916\u90e8\u4e2d\u65ad1\u88ab\u8bbe\u7f6e\u4e3a\u7535\u5e73\u89e6\u53d1\u65b9\u5f0f\uff0c\u5f53\u5f15\u811aINT1\u8f93\u5165\u4f4e\u7535\u5e73\u65f6\uff0c\u7f6e\u4f4dIE1\uff0c\u7533\u8bf7\u4e2d\u65ad\u3002CPU\u5728\u6bcf\u4e2a\u673a\u5668\u5468\u671f\u7684S5P2\u671f\u95f4\u91c7\u6837INT1\u7684\u8f93\u5165\u7535\u5e73\uff0c\u5f53\u91c7\u6837\u5230\u4f4e\u7535\u5e73\u65f6\uff0c\u7f6eIE1=1\u3002\u91c7\u7528\u7535\u5e73\u89e6\u53d1\u65b9\u5f0f\u65f6\uff0c\u8f93\u5165\u5230\u5f15\u811aINT1\u7684\u5916\u90e8\u4e2d\u65ad\u6e90\u5fc5\u987b\u4fdd\u6301\u7535\u5e73\u6709\u6548\uff0c\u76f4\u5230\u8be5\u76f4\u5230\u7a0b\u5e8f\u88abCPU\u54cd\u5e94\u3002\u540c\u65f6\uff0c\u5728\u8be5\u4e2d\u65ad\u670d\u52a1\u7a0b\u5e8f\u6267\u884c\u5b8c\u4e4b\u524d\uff0c\u5916\u90e8\u4e2d\u65ad\u6e90\u6709\u6548\u7535\u5e73\u5fc5\u987b\u88ab\u64a4\u9500\uff0c\u5426\u5219\u5c06\u4ea7\u751f\uff0c\u53e6\u4e00\u6b21\u4e2d\u65ad\u3002<\/p>\n

\n\tIT1=1\uff0c\u5916\u90e8\u4e2d\u65ad1\u88ab\u8bbe\u7f6e\u4e3a\u8fb9\u7f18\u89e6\u53d1\u65b9\u5f0f\uff0cCPU\u5728\u6bcf\u4e2a\u673a\u5668\u5468\u671f\u91c7\u6837\u5f15\u811aINT1\u7684\u7535\u5e73\u3002\u5982\u679c\u76f8\u7ee7\u7684\u4e24\u6b21\u91c7\u6837\u4e2d\uff0c\u4e00\u4e2a\u5468\u671f\u91c7\u6837\u5230\u5f15\u811aINT1\u4e3a\u9ad8\u7535\u5e73\uff0c\u63a5\u7740\u4e0b\u4e00\u4e2a\u5468\u671f\u91c7\u6837\u5230\u5f15\u811aINT1\u4e3a\u4f4e\u7535\u5e73\uff0cINE1\u7531\u786c\u4ef6\u81ea\u52a8\u6e050.\u56e0\u4e3a\u6bcf\u4e2a\u673a\u5668\u5468\u671f\u91c7\u6837\u4e00\u6b21\u5916\u90e8\u4e2d\u65ad\u8f93\u5165\u7535\u5e73\uff0c\u5916\u90e8\u4e2d\u65ad\u6e90\u8f93\u5165\u7684\u9ad8\u7535\u5e73\u548c\u4f4e\u7535\u5e73\u65f6\u95f4\u5fc5\u987b\u4fdd\u630112\u4e2a\u632f\u8361\u5468\u671f\u4ee5\u4e0a\uff0c\u624d\u80fd\u4fdd\u8bc1CPU\u68c0\u6d4b\u5230\u8d1f\u8df3\u53d8\u4fe1\u53f7\uff0c\u5373\u4e0b\u964d\u6cbf\u3002<\/p>\n

\n\tIEO\uff0c\u5373TCON.1\uff1a\u5916\u90e8\u4e2d\u65ad\u8bf7\u6c42\u6807\u5fd7\u4f4d\u3002IE0=1\u65f6\uff0c\u5916\u90e8\u4e2d\u65ad0\u5411CPU\u8bf7\u6c42\u4e2d\u65ad\uff0c\u5f53CPU\u54cd\u5e94\u5916\u90e8\u4e2d\u65ad\u540e\uff0cIE0\u7531\u786c\u4ef6\u6e050\u3002<\/p>\n

\n\tITO\uff0c\u5373TCON.0\uff1a\u5916\u90e8\u4e2d\u65ad0\u89e6\u53d1\u65b9\u5f0f\u63a7\u5236\u4f4d\u3002IT0=0\uff0c\u5916\u90e8\u4e2d\u65ad0\u88ab\u8bbe\u7f6e\u4e3a\u8fb9\u6cbf\u89e6\u53d1\u65b9\u5f0f\u3002IT0=1\u65f6\uff0c\u5916\u90e8\u4e2d\u65ad0\u88ab\u8bbe\u7f6e\u4e3a\u8fb9\u7535\u5e73\u53d1\u65b9\u5f0f\u3002\u5176\u529f\u80fd\u548cIT1\u7c7b\u4f3c\u3002<\/p>\n

\n\t\u4e2d\u65ad\u63a7\u5236\uff1a\u9664\u7279\u6b8a\u529f\u80fd\u5bc4\u5b58\u5668TCON\u548cSCON\u4e2d\u67d0\u4e9b\u4f4d\u4e0e\u4e2d\u65ad\u6709\u5173\u5916\uff0c\u8fd8\u6709\u4e24\u4e2a\u7279\u6b8a\u529f\u80fd\u5bc4\u5b58\u5668IE\u548cIP\u4e13\u95e8\u7528\u4e8e\u4e2d\u65ad\u63a7\u5236\u3002<\/p>\n

\n\t\u4e2d\u65ad\u5141\u8bb8IE\uff1a<\/p>\n

\n\t\"8051\u5355\u7247\u673a\u4e2d\u65ad\u7cfb\u7edf\u7ed3\u6784\u53ca\u4e2d\u65ad\u63a7\u5236\u539f\u7406\"<\/p>\n

\n\t8051\u5355\u7247\u673a\u4e2d\uff0c\u7279\u6b8a\u529f\u80fd\u5bc4\u5b58\u5668IE\u4f4d\u4e2d\u65ad\u5141\u8bb8\u5bc4\u5b58\u5668\uff0c\u63a7\u5236CPU\u5bf9\u4e2d\u65ad\u6e90\u603b\u7684\u5141\u8bb8\u6216\u7981\u6b62\u4ee5\u53ca\u6bcf\u4e2a\u4e2d\u65ad\u6e90\u662f\u5426\u5141\u8bb8\u4e2d\u65ad\u3002\u5176\u683c\u5f0f\u4e3a\uff1a<\/p>\n

\n\tEA\uff1a\u4e2d\u65ad\u603b\u5141\u8bb8\u4f4d\u3002EA=1\uff0cCPU\u5141\u8bb8\u4e2d\u65ad;EA=0\uff0cCPU\u7981\u6b62\u6240\u6709\u7684\u4e2d\u65ad\u8bf7\u6c42\u3002<\/p>\n

\n\tES\uff1a\u4e32\u884c\u4e2d\u65ad\u5141\u8bb8\u4f4d\u3002ES=1\uff0c\u5141\u8bb8\u4e32\u884c\u53e3\u4e2d\u65ad\uff1bES=0\uff0c\u7981\u6b62\u4e32\u884c\u53e3\u4e2d\u65ad\u3002<\/p>\n

\n\tEX1\uff1aT0\u6ea2\u51fa\u4e2d\u65ad\u5141\u8bb8\u4f4d\u3002ET0=1\uff0c\u5141\u8bb8T0\u4e2d\u65ad\uff1bET0=0\uff0c\u7981\u6b62T0\u4e2d\u65ad\u3002<\/p>\n

\n\tEX0\uff1a\u5916\u90e8\u4e2d\u65ad\u5141\u8bb8\u4f4d\u3002EX0=1\uff0c\u5141\u8bb8\u5916\u90e8\u4e2d\u65ad0\u4e2d\u65ad\uff1bEX0=0\uff0c\u7981\u6b62\u5916\u90e8\u4e2d\u65ad0\u4e2d\u65ad\u3002<\/p>\n

\n\t8051\u7cfb\u7edf\u590d\u4f4d\u540e\uff0cIE\u4e2d\u5404\u4f4d\u5747\u88ab\u6e050\uff0c\u5373\u7981\u6b62\u6240\u6709\u4e2d\u65ad\u3002<\/p>\n

\n\t\u4e2d\u65ad\u4f18\u5148\u7ea7\u8bbe\u5b9a\u5bc4\u5b58\u5668IP\u30028051\u5355\u7247\u673a\u5177\u6709\u4e24\u4e2a\u4e2d\u65ad\u4f18\u5148\u7ea7\uff0c\u6bcf\u4e2a\u4e2d\u65ad\u6e90\u53ef\u7f16\u7a0b\u4e3a\u9ad8\u4f18\u5148\u7ea7\u4e2d\u65ad\u6216\u4f4e\u4f18\u5148\u7ea7\u4e2d\u65ad\uff0c\u5e76\u53ef\u5b9e\u73b0\u4e8c\u7ea7\u4e2d\u65ad\u5d4c\u5957\u3002\u9ad8\u4f18\u5148\u7ea7\u4e2d\u65ad\u6e90\u53ef\u4e2d\u65ad\u6b63\u5728\u6267\u884c\u7684\u4f4e\u4f18\u5148\u7ea7\u4e2d\u65ad\u670d\u52a1\u7a0b\u5e8f\u3002<\/p>\n

\n\t\u540c\u7ea7\u6216\u4f4e\u4f18\u5148\u7ea7\u7684\u4e2d\u65ad\u6e90\u4e0d\u80fd\u4e2d\u65ad\u6b63\u5728\u6267\u884c\u7684\u4e2d\u65ad\u7a0b\u5e8f\u3002\u4e3a\u6b64\uff0c\u57288051\u4e2d\u65ad\u7cfb\u7edf\u4e2d\uff0c\u5185\u90e8\u6709\u4e24\u4e2a\u4f18\u5148\u7ea7\u72b6\u6001\u89e6\u53d1\u5668\uff0c\u5b83\u4eec\u5206\u522b\u6307\u793a\u51faCPU\u662f\u5426\u5728\u6267\u884c\u9ad8\u4f18\u5148\u7ea7\u6216\u4f4e\u4f18\u5148\u7ea7\u4e2d\u65ad\u670d\u52a1\u7a0b\u5e8f\uff0c\u4ece\u800c\u5206\u522b\u5c4f\u853d\u6240\u6709\u7684\u4e2d\u65ad\u7533\u8bf7\u548c\u540c\u4e00\u7ea7\u7684\u5176\u4ed6\u4e2d\u65ad\u6e90\u7533\u8bf7\u3002<\/p>\n

\n\t\u7279\u6b8a\u529f\u80fd\u5bc4\u5b58\u5668IP\u4e3a\u4e2d\u65ad\u4f18\u5148\u7ea7\u5bc4\u5b58\u5668\u3002<\/p>\n

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