0~9led

来自「基于单片机的0~9led显示奇数」· 代码 · 共 29 行

	ORG 0000H
	LJMP START
	ORG 030H
START:	MOV 20H,#00H  
	MOV A,20H	
	MOV R0,#5
MAIN:	  
	MOV DPTR,#TAB	
	MOVC A,@A+DPTR	
	MOV P3,A	    
  	ACALL DEL	   
	MOV A,20H	
	INC A					
	MOV 20H, A
	DJNZ R0,MAIN
	JMP START
	RETI
	
DEL: 	MOV R7,#10
DEL1:	MOV R6,#0FFH
DEL2:   MOV R5,#0FFH
DEL3:	DJNZ R5,DEL3
	DJNZ R6,DEL2
	DJNZ R7,DEL1
	RETI
TAB:	DB 0F9H,0B0H,92H,0F8H,90H	 
	END