【正文】 2 MOV 56H,29H 。前一個月是閏月 MOV A,R4 。R2中為0，則為前一個月 ANL A,0FH 。的最后一天 JNZ Y43 MOV 56H,30H MOV 57H,03H SETB F0 LJMP S_PLAYY43: MOV 57H,03H SETB F0 LJMP S_PLAYY42: MOV 56H,29H 。前一個月不是閏月 MOV A,R6 JB ,Y44 MOV 56H,30HY44: MOV 57H,03H CLR F0 LJMP S_PLAYY41: MOV A,R2 。R2中為日的值 MOV R0,A LCALL D_BCD MOV 56H,A MOV 57H,04H CLR F0 LJMP S_PLAYRY4: CJNE R2,00H,RY41 MOV 56H,29H 。R2中為0，則為前一個月 MOV A,R6 。的的最后一天 JB ,RY42 MOV 56H,30HRY42: MOV 57H,04H CLR F0 LJMP S_PLAYRY41: MOV A,R2 。R2中為日的值 MOV R0,A LCALL D_BCD MOV 56H,A MOV 57H,04H SETB F0 LJMP S_PLAYY5: CJNE R2,00H,Y51 LCALL CHECKRE 。查前一個月是否為閏月 CJNE A,04H,Y52 MOV 56H,29H 。前一個月是閏月 MOV A,R4 。R2中為0，則為前一個月 ANL A,0FH 。的最后一天 JNZ Y53 MOV 56H,30H MOV 57H,04H SETB F0 LJMP S_PLAYY53: MOV 57H,04H SETB F0 LJMP S_PLAYY52: MOV 56H,29H 。前一個月不是閏月 MOV A,R6 JB ,Y54 MOV 56H,30HY54: MOV 57H,04H CLR F0 LJMP S_PLAYY51: MOV A,R2 。R2中為日的值 MOV R0,A LCALL D_BCD MOV 56H,A MOV 57H,05H CLR F0 LJMP S_PLAYRY5: CJNE R2,00H,RY51 MOV 56H,29H 。R2中為0，則為前一個月 MOV A,R6 。的最后一天 JB ,RY52 MOV 56H,30HRY52: MOV 57H,05H CLR F0 LJMP S_PLAYRY51: MOV A,R2 。R2中為日的值 MOV R0,A LCALL D_BCD MOV 56H,A MOV 57H,05H SETB F0 LJMP S_PLAYY6: CJNE R2,00H,Y61 LCALL CHECKRE 。查前一個月是否為閏月 CJNE A,05H,Y62 MOV 56H,29H 。前一個月是閏月 MOV A,R4 。R2中為0，則為前一個月 ANL A,0FH 。的最后一天 JNZ Y63 MOV 56H,30H MOV 57H,05H SETB F0 LJMP S_PLAYY63: MOV 57H,05H SETB F0 LJMP S_PLAYY62: MOV 56H,29H 。前一個月不是閏月 MOV A,R6 JB ,Y64 MOV 56H,30HY64: MOV 57H,05H CLR F0 LJMP S_PLAYY61: MOV A,R2 。R2中為日的值 MOV R0,A LCALL D_BCD MOV 56H,A MOV 57H,06H CLR F0 LJMP S_PLAYRY6: CJNE R2,00H,RY61 MOV 56H,29H 。R2中為0，則為前一個月 MOV A,R6 。的最后一天 JB ,RY62 MOV 56H,30HRY62: MOV 57H,06H CLR F0 LJMP S_PLAYRY61: MOV A,R2 。R2中為日的值 MOV R0,A LCALL D_BCD MOV 56H,A MOV 57H,06H SETB F0 LJMP S_PLAYY7: CJNE R2,00H,Y71 LCALL CHECKRE 。查前一個月是否為閏月 CJNE A,06H,Y72 MOV 56H,29H 。前一個月是閏月 MOV A,R4 。R2中為0，則為前一個月 ANL A,0FH 。的最后一天 JNZ Y73 MOV 56H,30H MOV 57H,06H SETB F0 LJMP S_pLAYY73: MOV 57H,06H SETB F0 LJMP S_PLAYY72: MOV 56H,29H 。前一個月不是閏月 MOV A,R6 JB ,Y74 MOV 56H,30HY74: MOV 57H,06H CLR F0 LJMP S_PLAYY71: MOV A,R2 。R2中為日的值 MOV R0,A LCALL D_BCD MOV 56H,A MOV 57H,07H CLR F0 LJMP S_PLAYRY7: CJNE R2,00H,RY71 MOV 56H,29H 。R2中為0，則為前一個月 MOV A,R5 。的最后一天 JB ,RY72 MOV 56H,30HRY72: MOV 57H,07H CLR F0 LJMP S_PLAYRY71: MOV A,R2 。R2中為日的值 MOV R0,A LCALL D_BCD MOV 56H,A MOV 57H,07H SETB F0 LJMP S_PLAYY8: CJNE R2,00H,Y81 LCALL CHECKRE 。查前一個月是否為閏月 CJNE A,07H,Y82 MOV 56H,29H 。前一個月是閏月 MOV A,R4 。R2中為0，則為前一個月 ANL A,0FH 。的最后一天 JNZ Y83 MOV 56H,30H MOV 57H,07H SETB F0 LJMP S_PLAYY83: MOV 57H,07H SETB F0 LJMP S_PLAYY82: MOV 56H,29H 。前一個月不是閏月 MOV A,R5 JB ,Y84 MOV 56H,30HY84: MOV 57H,07H CLR F0 LJMP S_PLAYY81: MOV A,R2 。R2中為日的值 DL1MS: MOV R6,14HDL1: MOV R7,19HDL2: DJNZ R7,DL2 DJNZ R6,DL1 RET。數(shù)據(jù)表~~~~~~~~~~~~~~~~~~~`~~TAB: DB 35,15H,51H,00H,23,11H,52H,41H,42,12H,65H,00H DB 31,11H,32H,00H,21,42H,52H,21H,39,52H,25H,00H DB 28,25H,04H,71H,48,66H,42H,00H,37,33H,22H,00H DB 25,15H,24H,51H,44,05H,52H,00H,33,22H,65H,00H DB 22,21H,25H,41H,40,24H,52H,00H,30,52H,42H,91H DB 49,55H,05H,00H,38,26H,44H,00H,27,53H,50H,60H DB 46,53H,24H,00H,35,25H,54H,00H,24,41H,52H,41H DB 42,45H,25H,00H,31,24H,52H,00H,21,51H,12H,21H DB 40,55H,11H,00H,28,26H,21H,61H,47,26H,61H,00H DB 36,13H,31H,00H,25,05H,31H,51H,43,12H,54H,00H DB 33,51H,25H,00H,22,42H,25H,31H,41,32H,22H,00H DB 30,55H,02H,71H,49,55H,22H,00H,38,26H,62H,00H DB 27,13H,64H,60H,45,13H,32H,00H,34,12H,55H,00H DB 23,10H,53H,51H,42,22H,45H,00H,31,52H,22H,00H DB 21,52H,44H,21H,40,55H,44H,00H,29,26H,50H,71H DB 47,26H,64H,00H,36,25H,32H,00H,25,23H,32H,50H DB 44,44H,55H,00H,32,24H,45H,00H,22,55H,11H,30H END附錄三：系統(tǒng)使用說明書　 如電路原理總圖可知，本電路具有年、月、日、周日、時、分、秒、溫度和農(nóng)歷功能，總共由21個LED數(shù)碼管顯示，如下圖a所示。 　　　　　　　　　　　　　　　 圖－a日期和時間的修改由3個按鍵構(gòu)成。如圖b所示。鍵１為向右移；鍵２為加１；鍵３為減１。 圖－b袁節(jié)膅薂羄肅蒃薁蚃芀荿薀螆肅芅蕿袈羋膁蚈羀肁蒀蚇蝕襖莆蚇螂肀莂蚆羅袂羋蚅蚄膈膄蚄螇羈蒂蚃衿膆莈螞羈罿芄螁蟻膄膀螁螃羇葿螀裊膃蒅蝿肈羆莁螈螇芁芇莄袀肄膃莄羂艿蒂莃螞肂莈蒂螄羋芄蒁袆肀膀蒀罿袃薈葿螈聿蒄葿袁羈莀蒈羃膇芆蕆蚃羀膂蒆螅膅蒁薅袇羈莇薄罿膄芃薃蠆羆艿薃袁節(jié)膅薂羄肅蒃薁蚃芀荿薀螆肅芅蕿袈羋膁蚈羀肁蒀蚇蝕襖莆蚇螂肀莂蚆羅袂羋蚅蚄膈膄蚄螇羈蒂蚃衿膆莈螞羈罿芄螁蟻膄膀螁螃羇葿螀裊膃蒅蝿肈羆莁螈螇芁芇莄袀肄膃莄羂艿蒂莃螞肂莈蒂螄羋芄蒁袆肀膀蒀罿袃薈葿螈聿蒄葿袁羈莀蒈羃膇芆蕆蚃羀膂蒆螅膅蒁薅袇羈莇襖羋蕆袇螀芇蕿蝕聿芆艿蒃肅芅蒁螈羈芄薃薁袆芃芃螆螂芃蒞蕿肁節(jié)蒈螅羇莁薀薈袃莀艿螃蝿荿莂薆膈莈薄袁肄莇蚆蚄羀莇莆袀袆羃蒈螞螂羂薁袈肀肁芀蟻羆肁莃袆袂肀薅蠆袈聿蚇蒂膇肈莇螇肅肇葿薀罿肆薂螆裊肅芁薈螁膅莃螄聿膄蒆薇羅膃蚈螂羈膂莈蚅袇膁蒀袀螃膀薂蚃肂腿節(jié)衿羈腿莄螞襖羋蕆袇螀芇蕿蝕聿芆艿蒃肅芅蒁螈羈芄薃薁袆芃芃螆螂芃蒞蕿肁節(jié)蒈螅羇莁薀薈袃莀艿螃蝿荿莂薆膈莈薄袁肄莇蚆蚄羀莇莆袀袆羃蒈螞螂羂薁袈肀肁芀蟻羆肁莃袆袂肀薅蠆袈聿蚇蒂膇肈莇螇肅肇葿薀罿肆薂螆裊肅芁薈螁膅莃螄聿膄蒆薇羅膃蚈螂羈膂莈蚅袇膁蒀袀螃膀薂蚃肂腿節(jié)衿羈腿莄螞襖羋蕆袇螀芇蕿蝕聿芆艿蒃肅芅蒁螈羈芄薃薁袆芃芃螆螂芃蒞蕿肁節(jié)蒈螅羇莁薀薈袃莀艿螃蝿荿莂薆膈莈薄袁肄莇蚆蚄羀莇莆袀袆羃蒈螞螂羂薁袈肀肁芀蟻羆肁莃袆袂肀薅蠆袈聿蚇蒂膇肈莇螇肅肇葿薀罿肆薂螆裊肅芁薈螁膅莃螄聿膄蒆薇羅膃蚈螂羈膂莈蚅袇膁蒀袀螃膀薂蚃肂腿節(jié)衿羈腿莄螞襖羋蕆袇螀芇蕿蝕聿芆艿蒃肅芅蒁螈羈芄薃薁袆芃芃螆螂芃蒞蕿肁節(jié)蒈螅羇莁薀薈袃莀艿螃蝿荿莂薆膈莈薄袁肄莇蚆蚄羀莇莆袀袆羃蒈螞螂羂薁袈肀肁芀蟻羆肁莃袆袂肀薅蠆袈聿蚇蒂膇肈莇螇肅肇葿薀罿肆薂螆裊肅芁薈螁膅莃螄聿膄蒆薇羅膃蚈螂羈膂莈蚅袇膁蒀袀螃膀薂蚃肂腿節(jié)衿羈腿莄螞襖羋蕆袇螀芇蕿蝕聿芆艿蒃肅芅蒁螈羈芄薃薁袆芃芃螆螂芃蒞蕿肁節(jié)蒈螅羇莁薀薈袃莀艿螃蝿荿莂薆膈莈薄袁肄莇蚆蚄羀莇莆袀袆羃蒈螞螂羂薁袈肀肁芀蟻羆肁莃袆袂肀薅蠆袈聿蚇蒂膇肈莇螇肅肇葿薀罿肆薂螆裊肅芁薈螁膅莃螄聿膄蒆薇羅膃蚈螂羈膂莈蚅袇膁蒀袀螃膀薂蚃肂腿節(jié)衿羈腿莄螞襖羋蕆袇螀芇蕿蝕聿芆艿蒃肅芅蒁螈羈芄薃薁袆芃芃螆螂芃蒞蕿肁節(jié)蒈螅羇莁薀薈袃莀艿螃蝿荿莂薆膈莈薄袁肄莇蚆蚄羀莇莆袀袆羃蒈螞螂羂薁袈肀肁芀蟻羆肁莃袆袂肀薅蠆袈聿蚇蒂膇肈莇螇肅肇葿薀罿肆薂螆裊肅芁薈螁膅莃螄聿膄蒆薇袁節(jié)膅薂羄肅蒃薁蚃芀荿薀螆肅芅蕿袈羋膁蚈羀肁蒀蚇蝕襖莆蚇螂肀莂蚆羅袂羋蚅蚄膈膄蚄螇羈蒂蚃衿膆莈螞羈罿芄螁蟻膄膀螁螃羇葿螀裊膃蒅蝿肈羆莁螈螇芁芇莄袀肄膃莄羂艿蒂莃螞肂莈蒂螄羋芄蒁袆肀膀蒀罿袃薈葿螈聿蒄葿袁羈莀蒈羃膇芆蕆蚃羀膂蒆螅膅蒁薅袇羈莇薄罿膄芃薃蠆羆艿薃袁節(jié)膅薂羄肅蒃薁蚃芀荿薀螆肅芅蕿袈羋膁蚈羀肁蒀蚇蝕襖莆蚇螂肀莂蚆羅袂羋蚅蚄膈膄蚄螇羈蒂蚃衿膆莈螞羈罿芄螁蟻膄膀螁螃羇葿螀裊膃蒅蝿肈羆莁螈螇芁芇莄袀肄膃莄羂艿蒂莃螞肂莈蒂螄羋芄蒁袆肀膀蒀罿袃薈葿螈聿蒄葿袁羈莀蒈羃膇芆蕆蚃羀膂蒆螅膅蒁薅袇羈莇薄罿膄芃薃蠆羆艿薃袁節(jié)膅薂羄肅蒃薁蚃芀荿薀螆肅芅蕿袈羋膁蚈羀肁蒀蚇蝕襖莆蚇螂肀莂蚆羅袂羋蚅蚄膈膄蚄螇羈蒂蚃