tlc5615.asm

来自「自己制作的MAX038信号发生器程序」· 汇编 代码 · 共 48 行

DIN		BIT		P3.3
SCLK	BIT		P3.4
CS		BIT		P3.5
		ORG		0000H
		AJMP	START

START:	CLR		DIN
		CLR		SCLK
		SETB	CS
		NOP
MAIN:	MOV		40H,#00
		MOV		41H,#00
		ACALL	DAOUT
		MOV		40H,#11110000B
		MOV		41H,#11111100B
		ACALL	DAOUT
		SJMP	MAIN
		
DAOUT:	CLR		SCLK
		SETB	CS
		CLR		DIN
		MOV		R0,40H
		MOV		R1,41H
		NOP
		CLR		CS
		MOV		R2,#04H
		MOV		A,R0
		LCALL	INPUT
		MOV		R2,#08H
		MOV		A,R1
		LCALL	INPUT
		CLR		SCLK
		SETB	CS
		RET

INPUT:	NOP
LOOP:	CLR		SCLK
		RLC		A
		MOV		DIN,C
		SETB	SCLK
		ACALL	DELAY0
		DJNZ	R2,LOOP
		RET
DELAY0:	MOV		R3,#0FH
DE:		DJNZ	R3,DE
		RET
		
END