aaa.lst

AT89S51单片机控制74ls164驱动共阳数码管的源代码

A51 MACRO ASSEMBLER  AAA                                                                  03/22/2007 22:35:51 PAGE     1


MACRO ASSEMBLER A51 V8.00
OBJECT MODULE PLACED IN aaa.OBJ
ASSEMBLER INVOKED BY: C:\Keil\C51\BIN\A51.EXE aaa.asm SET(SMALL) DEBUG EP

LOC  OBJ            LINE     SOURCE

                       1     
0000                   2     ORG 0000H
0000 759800            3     START: MOV SCON,#00H ;置串行口工作方式0
0003 7480              4     MOV A,#80H ;最高位灯先亮 
0005 C290              5     CLR P1.0 ;关闭并行输出（避象传输钩讨校