#include
#include?//定義8255A的絕對(duì)地址時(shí)用，必須包含此庫函數(shù)
#include
/***********宏聲明***********/?
#define?uint??unsigned?int
#define?uchar?unsigned?char
#define?D8255??XBYTE[0x7f03]?//8255控制口地址
#define?D8255A?XBYTE[0x7f00]?//8255?PA口地址
#define?D8255B?XBYTE[0x7f01]?//8255?PB口地址
#define?D8255C?XBYTE[0x7f02]?//8255?PC口地址
sbit?A0=P3^0;
sbit?A1=P3^1;
char?code?table[]={0x3F0x060x5B0x4F0x660x6D0x7D0x070x7F0x6F};	//設(shè)段碼
void?delay（uint?x）
{
	uint?i;
	while（x--）????????????//延時(shí)約x毫秒
		for（i=0;i<123;i++）;
}
void?main（）
{
???uchar?it=0x0fe;
???D8255=0x80;?//送出控制字給8255A的控制口?A、B、C均為輸出
???while（1）
???{?
???		for（i=0;i<10;i++）
	????{?	
			A0=0;
???			A1=0;
		????D8255A=table[i];???????//向PA口送出數(shù)據(jù)
			delay（200）;
			A0=1;
???			A1=0;
			D8255B=0x55;?????//向PB口送出數(shù)據(jù)
		????delay（200）;
			A0=0;
???			A1=1;
			delay（200）;?
			D8255C=~t;	????//向PC口送出數(shù)據(jù)
		????t=_crol_（t1）;??//t循環(huán)左移1位
	????}?????????????????
???}
}

?屬性????????????大小?????日期????時(shí)間???名稱
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?????文件???????1055??2011-08-08?19:18??8255a仿真\5255A.c

?????文件?????117888??2011-08-08?19:20??8255a仿真\5255A.DSN

?????文件???????2825??2011-08-08?19:18??8255a仿真\5255A.LST

?????文件???????3721??2011-08-08?19:18??8255a仿真\5255A.OBJ

?????文件???????1102??2014-05-16?10:54??8255a仿真\5255A.PWI

?????文件???????4149??2011-08-08?19:18??8255a仿真\8255a

?????文件????????404??2011-08-08?19:18??8255a仿真\8255a.hex

?????文件?????????58??2011-08-08?19:18??8255a仿真\8255a.lnp

?????文件???????5639??2011-08-08?19:18??8255a仿真\8255a.M51

?????文件???????1028??2011-08-08?19:20??8255a仿真\8255a.Opt

?????文件??????11406??2011-08-08?19:20??8255a仿真\8255a.plg

?????文件???????2153??2011-08-07?22:00??8255a仿真\8255a.Uv2

?????文件???????1027??2011-08-07?22:00??8255a仿真\8255a_Opt.Bak

?????文件??????????0??2011-08-07?21:53??8255a仿真\8255a_Uv2.Bak

?????文件?????113250??2011-08-08?19:09??8255a仿真\Last?Loaded?5255A.DBK

?????文件???????6376??2005-03-22?15:22??8255a仿真\STARTUP.A51

?????文件??????14060??2011-08-08?19:18??8255a仿真\STARTUP.LST

?????文件????????758??2011-08-08?19:18??8255a仿真\STARTUP.OBJ

?????目錄??????????0??2014-05-16?10:54??8255a仿真

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???????????????286899????????????????????19