Untitled

org 0000h

MAIN:
		MOV 	TMOD,#02h 	; chon Timer 0, che do 2
		
HERE:	
		CPL		P1.6
		ACALL	DELAY1
		CPL		P1.6
		ACALL	DELAY
		SJMP	HERE		; nap lai TH, TL
		RET
DELAY:
		MOV 	TH0, #0E1h
		SETB 	TR0
AGAIN:
		JNB		TF0, AGAIN
		CLR 	TF0
		CLR 	TR0
		RET
DELAY1:
		MOV 	TH0, #041h
		SETB 	TR0
AGAIN1:
		JNB		TF0, AGAIN1
		CLR 	TF0
		CLR 	TR0
		RET
end