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×Ô¶¯»¯×¨ÒµÂÛÎÄ·¶ÎÄ µçÈȺãÎÂÏäµÄ΢»ú¿ØÖÆϵͳ ÕªÒª£º±¾ÎÄÒÔµ¥Æ¬»ú80C552ΪºËÐÄ£¬Éè¼ÆÁ˵çÈȺãÎÂÏäµÄ΢»ú¿ØÖÆϵͳ¡£±¾ÏµÍ³²ÉÓü¯³Éζȴ«¸ÐÆ÷AD590½øÐÐζȼì²âºÍ´¦Àí£¬ÀûÓõ¥Æ¬»úÖеİË·ʮλÖð´Î±È½ÏÐÍA/Dת»»Æ÷½øÐÐÐźŲɼ¯¡£±¾ÏµÍ³»¹Éè¼ÆÁËÔ½ÏÞ±¨¾¯¹¦ÄÜ£¬²¢ÓüüÅÌÉ趨ζÈÖµ£¬¿ØÖƵçÈÈË¿½øÐмÓÈÈ£¬Ê¹¹¤×÷¼äµÄζÈÎȶ¨ÔÚijһÉ趨ֵ¡£±¾ÏµÍ³»¹²ÉÓÃÁËʱÖÓоƬMC146818 ÏÔʾµ±Ç°µÄʱ¼ä¡£µ±µçÔ´¶Ïµçºó£¬¿ÉÒÔ¿¿Ðîµç³Ø¹©µç£¬½øÐÐʱÖÓ¼Æʱ¹¦Äܼ°±£ÁôÆäÄÚ²¿RAMµÄÊý¾Ý¡£ ¹Ø¼ü×Ö£ºµ¥Æ¬»ú£»Î¶ȴ«¸ÐÆ÷£»Î¶ȿØÖÆϵͳ¡£ Abstract The core of this paper is 80C552 single microcomputer, designed the computer control system of the electrothermal constant temperature box. This system adopts integration the sensor of temperature AD590 to carry on examining and dealing with temperature signal. Make use of single microcomputer eight ten roads A/D transform of machine with compare gradually to collect signal. This system designed alarm faction of over limit, and use keyboard set temperature number, control the quantity of heat supply of the electric thermal thread and to make the temperature of the workshop stable at a certain established number. This system adapt clock chip MC146818 to show the time. It is supplying power depend on the storage battery carry on the function of clock working, and the data of its internal RAM, then power is be cut. Keywords: single chip microcomputer; temperature sensor; the temperature control system Ŀ¼ µÚÒ»Õ Ð÷ÂÛ1 1.1 ±³¾°¼°Ñо¿ÒâÒå1 1.2 ζȿØÖÆϵͳ¸ÅÊö1 1.3 ¼¼ÊõÖ¸±ê1 µÚ¶þÕ ϵͳӲ¼þÉè¼Æ3 2.1 ϵͳ¸÷²¿·Ö·½°¸ÂÛÖ¤3 2.2 µ¥Æ¬»ú¸ÅÊö6 2.2.1 80C552½á¹¹ÓëÌصã6 2.2.2 80C552Òý½Å¹¦ÄܺÍÌصã9 2.3 µ¥Æ¬»ú´æ´¢Æ÷ºÍI/O¿ÚµÄÀ©Õ¹13 2.3.1 ´æ´¢Æ÷µÄÀ©Õ¹13 2.3.2 I/O¿ÚµÄÀ©Õ¹15 2.4 ζȼì²â¼°´¦Àíµç·µÄÉè¼Æ18 2.4.1 ζȴ«¸ÐÆ÷AD59018 2.4.2 ¼ì²âºÍ´¦Àíµç·19 2.5 ʱÖÓµç·20 2.6 ¼üÅ̺ÍÏÔʾ22 2.7 ¼ÓÈȺóÏòͨµÀµÄÉè¼Æ25 µÚÈýÕ ϵͳ¿¹¸ÉÈŵÄÉè¼Æ27 µÚËÄÕ ¿ØÖÆËã·¨28 4.1 ¸ÅÊö28 4.2 ζȿØÖÆËã·¨29 µÚÎåÕ ϵͳÈí¼þÉè¼Æ31 5.1 ³ÌÐòÉè¼ÆÓïÑÔ¼ò½é31 5.2 Èí¼þµÄ±àÖÆ31 µÚÁùÕ ½áÊøÓï34 ÖÂл35 ²Î¿¼ÎÄÏ×36 ¸½Â¼£º³ÌÐòÇåµ¥37
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