flashled.asm

来自「八个发光二极管L1－L8分别接在单片机的P1.0－P1.7接口上」· 汇编 代码 · 共 29 行

			ORG 0 
START:	MOV DPTR,#TABLE 
LOOP:	   CLR A 
			MOVC A,@A+DPTR 
			CJNE A,#01H,LOOP1 
			JMP START 
LOOP1:	MOV P1,A 
			MOV R3,#20 
			LCALL DELAY 
   		INC DPTR 
			JMP LOOP 
DELAY:	MOV R4,#20 
D1:	MOV R5,#248 	
	DJNZ R5,$ 
	DJNZ R4,D1 
	DJNZ R3,DELAY 
	RET 
TABLE:	DB 0FEH,0FDH,0FBH,0F7H 
	DB 0EFH,0DFH,0BFH,07FH 
	DB 0FEH,0FDH,0FBH,0F7H 
	DB 0EFH,0DFH,0BFH,07FH		
	DB 07FH,0BFH,0DFH,0EFH 
	DB 0F7H,0FBH,0FDH,0FEH 
	DB 07FH,0BFH,0DFH,0EFH 
	DB 0F7H,0FBH,0FDH,0FEH 
	DB 00H, 0FFH,00H, 0FFH 
	DB 01H 
	END