/*
?*?跑馬燈?按鍵改變閃爍方式
?*
*/


#include?


sbit?ENLED?=?P1^4;
sbit?ADDR3?=?P1^3;
sbit?ADDR2?=?P1^2;
sbit?ADDR1?=?P1^1;
sbit?ADDR0?=?P1^0;
sbit?KeyIn1?=?P2^4;
sbit?KeyIn2?=?P2^5;
sbit?KeyIn3?=?P2^6;
sbit?KeyIn4?=?P2^7;
sbit?KeyOut1?=?P2^3;
sbit?KeyOut2?=?P2^2;
sbit?KeyOut3?=?P2^1;
sbit?KeyOut4?=?P2^0;


unsigned?char?key=0;


void?delay（unsigned?int?i）
{
	while?（i--）;
}

unsigned?char?just_keys（unsigned?char?n）
{
	if?（KeyIn1?==?0）
	{
		delay?（100）;
		if?（KeyIn1?==?0）
		{
			while?（KeyIn1?==?0）;
			return?（1+4*n）;
		}
		else
			return?0;
	}
	if?（KeyIn2?==?0）
	{
		delay?（100）;
		if?（KeyIn2?==?0）
		{
			while?（KeyIn2?==?0）;
			return?（2+4*n）;
		}
		else
			return?0;
	}
	if?（KeyIn3?==?0）
	{
		delay?（100）;
		if?（KeyIn3?==?0）
		{
			while?（KeyIn3?==?0）;
			return?（3+4*n）;
		}
		else
			return?0;
	}
	if?（KeyIn4?==?0）
	{
		delay?（100）;
		if?（KeyIn4?==?0）
		{
			while?（KeyIn4?==?0）;
			return?（4+4*n）;
		}
		else
			

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----

?????文件???????3425??2012-02-08?17:31??paomadeng\leds.hex

?????文件?????????40??2012-02-08?17:31??paomadeng\leds.lnp

?????文件??????25625??2012-02-08?17:31??paomadeng\leds.M51

?????文件????????514??2012-02-08?23:25??paomadeng\leds.plg

?????文件???????1975??2010-10-26?22:06??paomadeng\leds_Uv2.Bak

?????文件???????5552??2010-10-26?23:03??paomadeng\main.c

?????文件???????2094??2011-11-17?17:23??paomadeng\leds.Uv2

?????文件???????1187??2012-02-08?00:40??paomadeng\leds_Opt.Bak

?????文件??????18168??2012-02-08?17:31??paomadeng\main.LST

?????文件??????15145??2012-02-08?17:31??paomadeng\main.OBJ

?????文件??????12872??2012-02-08?17:31??paomadeng\leds

?????文件???????1181??2012-02-08?23:25??paomadeng\leds.Opt

?????文件?????146518??2013-05-23?21:59??paomadeng\8051?LED?跑馬燈.DSN

?????目錄??????????0??2010-10-26?19:14??paomadeng

-----------?---------??----------?-----??----

???????????????234296????????????????????14