基于單片機上的電子搶答器--資料下載頁
2025-06-27 19:14本頁面
【正文】 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 TRUE7: ACALL BARK MOV A,R2 MOV R6,A MOV R3,07H CLR OK AJMP COUNT TRUE8: ACALL BARK MOV A,R2 MOV R6,A MOV R3,08H CLR OK AJMP COUNT 。=====犯規(guī)搶答程序===== ERROR: MOV R0,00H MOV TH1,3CH MOV TL1,0B0H MOV 34H,R3 HERE: MOV A,R0 CJNE A,06H,FLASH CLR RING MOV R3,0AH MOV R4,0AH MOV R5,0AH AJMP CHECK1 FLASH: CJNE A,0CH,CHECK1 SETB RING MOV R0,00H MOV R3,34H MOV R5,0BH MOV R4,0BH AJMP CHECK1 CHECK1: JNB ,QUIT1 ACALL DISPLAY AJMP HERE QUIT1: CLR RING CLR OK AJMP START 。=====顯示程序===== DISPLAY: MOV DPTR,DAT1 MOV A,R3 MOVC A,@A+DPTR MOV P2,0feH MOV P0,A ACALL DELAY2 MOV DPTR,DAT2 MOV A,R5 MOVC A,@A+DPTR MOV P2,0fdH MOV P0,A ACALL DELAY2 MOV A,R4 MOVC A,@A+DPTR MOV P2,0fbH MOV P0,A ACALL DELAY2 RET DAT1: DB 00h,06h,5bh,4fh,66h,6dh,7dh,07h,7fh,6fh,00H,71HDAT2: DB 3fh,06h,5bh,4fh,66h,6dh,7dh,07h,7fh,6fh,00H,71H 。====加減時間延時(起到不會按下就加N 個數(shù))======DELAY1: MOV 35H,08H LOOP0: ACALL DISPLAY DJNZ 35H,LOOP0 RET 。=====延時4236 個機器周期(去抖動用到)===== DELAY: MOV 32H,12H LOOP: MOV 33H,0AFH LOOP1: DJNZ 33H,LOOP1 DJNZ 32H,LOOP RET 。=====延時4236 個機器周期(顯示用到)===== DELAY2: MOV 32H,43H LOOP3: MOV 33H,1EH MOV A,R7 JNZ AAAA1LOOP2: DJNZ 33H,LOOP2 DJNZ 32H,LOOP3 RET 。=====讀搶答按鍵數(shù)據(jù)口程序===== AAAA1: MOV A,P1 CJNE A,0FFH,AA1 AA0: MOV 36H,A AJMP LOOP2 AA1: DEC R7 AJMP AA0 。=====發(fā)聲程序===== BARK: SETB RING ACALL DELAY1 ACALL DELAY1 CLR RING RET 。=====TO 溢出中斷(響鈴程序)===== T0INT: MOV TH0,0ECH MOV TL0,0FFH JNB RING,OUT。 CPL OUT: RETI。=====T1 溢出中斷(計時程序)===== T1INT: MOV TH1,3CH MOV TL1,0B0H INC R0 RETI END
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