【文章內容簡介】 MOV TL1,0B0H RECOUNT: MOV A,R6 MOV B,0AH DIV AB MOV 30H,A MOV 31H,B MOV R5,30H 12 MOV R4,31H MOV A,R6 SUBB A,07H JNC LARGER MOV A,R0 CJNE A,0AH,FULL SETB RING AJMP CHECK FULL: CJNE A,14H,CHECK CLR RING MOV A,R6 JZ QUIT MOV R0, DEC R6 AJMP CHECK LARGER: MOV A,R0 CJNE A,14H,CHECK DEC R6 MOV R0,00H CHECK: JNB ,QUIT ACALL DISPLAY JB OK,ACCOUT AJMP RECOUNT ACCOUT: JNB ,TRUE1 JNB ,TRUE2 JNB ,TRUE3 JNB ,TRUE4 JNB ,TRUE5 JNB ,TRUE6 AJMP RECOUNT QUIT: CLR OK SETB RING AJMP START TRUE1: ACALL BARK MOV A,R2 MOV R6,A MOV R3,01H CLR OK AJMP COUNT TRUE2: ACALL BARK。 MOV A,R2 MOV R6,A MOV R3,02H CLR OK AJMP COUNT TRUE3: ACALL BARK。 MOV A,R2 MOV R6,A MOV R3,03H CLR OK AJMP COUNT TRUE4: ACALL BARK。 MOV A,R2 MOV R6,A MOV R3,04H CLR OK AJMP COUNT TRUE5: ACALL BARK。 MOV A,R2 MOV R6,A MOV R3,05H CLR OK AJMP COUNT TRUE6: ACALL BARK。 MOV A,R2 MOV R6,A MOV R3,06H CLR OK AJMP COUNT ERROR: MOV R0,00H MOV TH1,3CH MOV TL1,0B0H 13 MOV 34H,R3 HERE: MOV A,R0 CJNE A,0AH,FLASH SETB RING MOV R3,0AH MOV R4,0AH MOV R5,0AH AJMP CHECK1 FLASH: CJNE A,14H,CHECK1 CLR RING MOV R0,00H MOV R3,34H MOV R5,0BH MOV R4,0BH AJMP CHECK1 CHECK1: JNB ,QUIT1 ACALL DISPLAY AJMP HERE QUIT1: SETB RING CLR OK AJMP START DISPLAY:MOV DPTR,DAT1 MOV A,R5 MOVC A,@A+DPTR MOV P2,0fbH MOV P0,A ACALL DELAY MOV DPTR,DAT2 MOV A,R4 MOVC A,@A+DPTR MOV P2,0feH MOV P0,A ACALL DELAY MOV A,R3 MOVC A,@A+DPTR MOV P2,0fdH MOV P0,A ACALL DELAY RET DAT1: DB 0ffH,0f9h,0a4h,0b0h,99h,92h,82h,f8h,80h,90h,0ffH,8eH DAT2: DB 0c0,0f9h,0a4h,0b0h,99h,92h,82h,f8h,80h,90h,0ffH,8eH DELAY1: MOV 35H,08H LOOP0: ACALL DISPLAY DJNZ 35H,LOOP0 RET DELAY: MOV 32H,12H LOOP: MOV 33H,0AFH LOOP1: DJNZ 33H,LOOP1 DJNZ 32H,LOOP RET BARK: CLR RING ACALL DELAY1 ACALL DELAY1 SETB RING RET T0INT: MOV TH0,0ECH MOV TL0,0FFH JB RING,OUT CPL OUT: RETI T1INT: MOV TH1,3CH MOV TL1,0B0H INC R0 RETI END 14 附錄 2：仿真圖 15 附錄三： PCB 圖 1243124312432 112345678910 1112131415161718192012345678910 1112131415161718192021123456121110987121212121212121234567891011121314151617181920 2122232425262728293031323334353637383940212121121 24 31 24 31 24 31 24 31 24 31 24 3 16 附錄四：原理圖 R110kR210kR310KR410KR510KR610KR710K1212MHZXTALC1CAPC2CAPC3C31 號2 號3 號4 號5 號6 號結束開始復位R810K蜂鳴器GNDGND+5+5+5VCCVCC403938373635343332EA/VPP31ALE/PROG30PSEN292827262524232221INT012INT113T014T115WR16RD17XTAL218XTAL119VSS2012345678RESET9TXD11RXD10J18051A02A13A24A35A46A57A68A79B018B117B216B315B414B513B612B711E19DIR1U174LS245a