93uartt.asm

LCD1602.rar

	ORG	00H
	JMP 	START
START:  MOV     SP,#60H
	MOV  	SCON,#50H
	MOV	TMOD,#20H
	MOV	TH1,#0E6H
	SETB	TR1
	MOV 	30H,#0FFH
SCANO:  MOV	A,P1
	CJNE  	A,30H,KEYIN
	JMP     SCANO
KEYIN:  MOV	30H,A
  	MOV	P2,A
	MOV 	SBUF,A
WAIT:   JBC     TI,SCANO
	JMP	WAIT
	END