電子鐘專周報告(編輯修改稿)
2024-08-30 06:09 本頁面
【文章內(nèi)容簡介】 L DLY SETB MOV A,23H 。分十位 ACALL SEG7 MOV P0,A CLR ACALL DLY SETB MOV A,24H 。時個位 ACALL SEG7 MOV P0,A SETB CLR ACALL DLY SETB MOV A,25H 。時十位 ACALL SEG7 MOV P0,A CLR ACALL DLY SETB RET T0INT0: MOV TH0,03CH。9EH 。定時中斷子程序。重裝定時常數(shù) MOV TL0,0B0H。58H DJNZ R4,T0INTR 。50msX20=1S，未滿20次，跳出中斷子程序 MOV R4,20 INC 26H 。1S，秒存儲單元內(nèi)數(shù)+1 MOV A,26H CJNE A,60,T0INTR 。未滿60S，跳出中斷。 MOV 26H,0 。滿60S,秒單元清零 INC 27H 。分+1 MOV A,27H CJNE A,60,T0INTR MOV 27H,0 INC 28H MOV A,28H CJNE A,24,T0INTR MOV 28H,0T0INTR: RETIDLY10: MOV R3,30D0: ACALL DLY DJNZ R3,D0 RETDLY: MOV R7,2D1: MOV R6,40 DJNZ R6,$ DJNZ R7,D1 RETSEG7: INC A MOVC A,@A+PC RET DB 03FH 。0 共陰 DB 006H 。1 DB 05BH 。2 DB 04FH 。3 DB 066H 。4 DB 06DH 。5 DB 07DH 。6 DB 007H 。7 DB 07FH 。8 DB 06FH 。9 END總體電路圖： 加上整點提醒，響1S,鬧鈴響3 S,定時整點總程序如下：STRT EQU STP EQU CLRR EQU SEC EQU MIN EQU HOUR EQU ORG 00HAJMP MAINORG 0BHAJMP T0INTORG 1BHAJMP T1INTORG 30H MAIN: MOV SP,60HMOV R4,20MOV TMOD,11HMOV TH0,03CH。9EH 定時初值取3CB0H,還可細調(diào)如 TL=0B7H,可以更準 MOV TL0,0B0H。58HMOV TH1,0FEHMOV TL1,0CHSETB EA SETB ET0SETB ET1kS: ACALL DISPACALL ALARM JB SEC,KM 。秒調(diào)整按鍵ACALL DISPJNB SEC,$2 AJMP SINCkM: JB MIN,KH 。分調(diào)整按鍵ACALL DISPJNB MIN,$2 AJMP MINCKH: JB HOUR,K1 。時調(diào)整按鍵ACALL DISPJNB HOUR,$2 AJMP HINC SINC: JB 7FH,SINC_AINC 26H 。秒調(diào)整MOV A,26HCJNE A,60,SINC0MOV 26H,0AJMP SINC0SINC_A:INC 36H 。鬧秒調(diào)整MOV A,36HCJNE A,60,SINC0MOV 36H,0SINC0: AJMP KSMINC: JB 7FH,MINC_AINC 27H 。分調(diào)整MOV A,27HCJNE A,60,MINC0MOV 27H,0
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