?? shengyinlufangchengxu.asm
字號:
INITIAL: MOV IE, #95H
MOV SCON ,#00h
MOV B0H,#0FH
POWERUP: CLR P2.0
CLR P2.1
NOP
MOV SBUF,#00100000B
ACALL DELAY50MS
PLAY: ORL P2,#0F8H
CLR P2.3
MOV A,#11110000B
ACALL SEND
JMP SCAN
REC: CLR P2.0 ;POWERUP:
CLR P2.1
NOP
MOV SBUF,#00100000B
ACALL DELAY50MS
ACALL DELAY50MS
ORL P2,#0F8H ;RESUME
CLR P2.7
CLR IE.4
MOV A,#00H
ACALL SEND
NOP
CLR SCON.1
MOV A,#00H
ACALL SEND
NOP
CLR SCON.1
SETB IE.4
MOV A,#10100000B
ACALL SEND
NOP
ORL P2,#0F8H
CLR P2.4
MOV A,#10110000B
ACALL SEND
JMP SCAN
DELAY50MS:MOV R1,#60H
LOOP1: MOV R2,#0FFH
LOOP2: NOP
NOP
DJNZ R2,LOOP2
DJNZ R1,LOOP1
RET
NOP
INT0: MOV B,A
JNB P1.5,OVER
RINT: MOV A,#00110000B
ACALL SEND
NOP
RECEIVE: CLR P2.0
CLR P2.2
NOP
MOV SCON,#10H
NOP
AGAIN: MOV A,SBUF
JNB ACC.0,OTHER
OVF: CLR IE.4
MOV A,#00H
ACALL SEND
NOP
CLR SCON.1
MOV A,#00H
ACALL SEND
NOP
CLR SCON.1
SETB IE.4
MOV A,B
ANL A,#0E7H
ACALL SEND
NOP
GOINGON: MOV A,B
CLR ACC.3
ACALL SEND
NOP
OVER: RETI
OTHER: JNB ACC.1,AGAIN
EOM: JMP GOINGON
NOP
END
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