基于單片機(jī)的旋轉(zhuǎn)電子鐘(匯編程序)-資料下載頁
2025-04-08 22:27本頁面
【正文】 MOV P1 , A CLR ACALL DL1MS SETB MOV A ,ALARMMBUFF2 。使分的十位亮 MOVC A , @A+DPTR MOV C , DP MOV , C MOV P1 , A CLR ACALL DL1MS SETB MOV A , ALARMMBUFF1 。使時(shí)的個(gè)位亮 MOVC A , @A+DPTR SETB MOV P1,A CLR ACALL DL1MS SETB RET。********************************。**晚上顯示子程序****************。******************************** 。降低顯示的占空比，數(shù)碼管進(jìn)入節(jié)能NIGHTDISPLAY: NOP MOV P1 ,0FFH MOV A , HBUFF2 MOVC A , @A+DPTR SETB MOV P1 , A CLR ACALL DL1MS 。亮1ms SETB ACALL DL1MS ACALL DL1MS 。暗2ms MOV A , HBUFF1 MOVC A , @A+DPTR MOV C , DP MOV , C MOV P1 , A CLR ACALL DL1MS SETB ACALL DL1MS ACALL DL1MS MOV A ,MBUFF2 MOVC A , @A+DPTR MOV C , DP MOV , C MOV P1 , A CLR ACALL DL1MS SETB ACALL DL1MS ACALL DL1MS MOV A , MBUFF1 MOVC A , @A+DPTR SETB MOV P1,A CLR ACALL DL1MS SETB ACALL DL1MS ACALL DL1MS RET 。************** 。**顯示子程序** 。**************DISPLAY: MOV P1 ,0FFH MOV A , HBUFF2 MOVC A , @A+DPTR SETB MOV P1 , A CLR ACALL DL1MS SETB MOV A , HBUFF1 MOVC A , @A+DPTR MOV C , DP MOV , C MOV P1 , A CLR ACALL DL1MS SETB MOV A ,MBUFF2 MOVC A , @A+DPTR MOV C , DP MOV , C MOV P1 , A CLR ACALL DL1MS SETB MOV A , MBUFF1 MOVC A , @A+DPTR SETB MOV P1,A CLR ACALL DL1MS SETB RETTAB: DB 88H,0BBH,94H,91H,0A3H 。 0 1 2 3 4 DB 0C1H,0C0H,9BH,80H,81H 。 5 6 7 8 9 。************** 。***延時(shí)程序*** 。**************DL1MS: MOV R6 , 20 。延時(shí)1msDL11: MOV R7 , 25DL12: DJNZ R7 , DL12 DJNZ R6 , DL11 RETDL100MS:MOV R6 , 200 。延時(shí)100msDL100MS1:MOV R7 , 250DL100MS2:DJNZ R7 , DL100MS2 DJNZ R6 , DL100MS1 RETDL11S: MOV R5 , 10DL1S0: MOV R6 , 200 。延時(shí)1s 10*250*200DL1S1: MOV R7 , 250DL1S2: DJNZ R7 , DL1S2 DJNZ R6 , DL1S1 DJNZ R5 , DL1S0 RETDL0FIVE:MOV R5 , 5DL0: MOV R6 , 100 。DL1: MOV R7 , 250DL2: DJNZ R7 , DL2 DJNZ R6 , DL1 DJNZ R5 , DL0 RET 。************** 。*T0中斷子程序* 。**************INTERT0:PUSH ACC PUSH PSW CLR ET0 。關(guān)T0中斷 MOV A , SBUFF CJNE A ,028H, SET1 MOV R4 , 0DCH 。后四十秒的初值SET1: DJNZ NUM , ENDINTT0 。若還沒到1s，則退出該次中斷 MOV NUM , 8 。設(shè)置NUM初值 CPL DP DJNZ SBUFF , ENDINTT0 。 若還沒到60s，則退出該次中斷 MOV SBUFF , 03CH MOV R4 , 0DBH 。前20秒的初值 ACALL ADDBUFF0ENDINTT0: MOV A , NUM CJNE A , 04H , ENDT0OUT 。 CPL DPENDT0OUT:POP PSW POP ACC SETB ET0 RETIE
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鄂ICP備17016276號-1