Proteus仿真单片机实验

NOKEY2:

MOV P3,#0FFH CLR P3.6 MOV A,P3 ANL A,#0FH XRL A,#0FH JZ NOKEY3

LCALL DELY10MS MOV A,P3 ANL A,#0FH XRL A,#0FH JZ NOKEY3 MOV A,P3 ANL A,#0FH

CJNE A,#0EH,NK9 MOV KEYBUF,#8 LJMP DK3

NK9: CJNE A,#0DH,NK10 MOV KEYBUF,#9 LJMP DK3

NK10: CJNE A,#0BH,NK11 MOV KEYBUF,#10 LJMP DK3

NK11: CJNE A,#07H,NK12 MOV KEYBUF,#11 LJMP DK3 NK12: NOP DK3:

MOV A,KEYBUF MOV DPTR,#TABLE MOVC A,@A+DPTR MOV P0,A

MOV A,KEYBUF MOV B,#2 MUL AB

MOV TEMP,A

MOV DPTR,#TABLE1 MOVC A,@A+DPTR MOV STH0,A MOV TH0,A INC TEMP MOV A,TEMP

MOVC A,@A+DPTR MOV STL0,A

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MOV TL0,A SETB TR0

DK3A: MOV A,P3 ANL A,#0FH XRL A,#0FH JNZ DK3A CLR TR0 NOKEY3:

MOV P3,#0FFH CLR P3.7 MOV A,P3 ANL A,#0FH XRL A,#0FH JZ NOKEY4

LCALL DELY10MS MOV A,P3 ANL A,#0FH XRL A,#0FH JZ NOKEY4 MOV A,P3 ANL A,#0FH

CJNE A,#0EH,NK13 MOV KEYBUF,#12 LJMP DK4

NK13: CJNE A,#0DH,NK14 MOV KEYBUF,#13 LJMP DK4

NK14: CJNE A,#0BH,NK15 MOV KEYBUF,#14 LJMP DK4

NK15: CJNE A,#07H,NK16 MOV KEYBUF,#15 LJMP DK4 NK16: NOP DK4: MOV A,KEYBUF MOV DPTR,#TABLE MOVC A,@A+DPTR MOV P0,A

MOV A,KEYBUF MOV B,#2 MUL AB

MOV TEMP,A

MOV DPTR,#TABLE1

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MOVC A,@A+DPTR MOV STH0,A MOV TH0,A INC TEMP MOV A,TEMP

MOVC A,@A+DPTR MOV STL0,A MOV TL0,A SETB TR0

DK4A: MOV A,P3 ANL A,#0FH XRL A,#0FH JNZ DK4A CLR TR0 NOKEY4: LJMP WAIT DELY10MS: MOV R6,#10

D1: MOV R7,#248 DJNZ R7,$ DJNZ R6,D1 RET INT_T0:

MOV TH0,STH0 MOV TL0,STL0 CPL P1.0 RETI

TABLE: DB 3FH,06H,5BH,4FH,66H,6DH,7DH,07H DB 7FH,6FH,77H,7CH,39H,5EH,79H,71H

TABLE1: DW 64021,64103,64260,64400 DW 64524,64580,64684,64777 DW 64820,64898,64968,65030 DW 65058,65110,65157,65178 END

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