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用于51單片機 控制紅綠燈 設計 利用定時器 設計 代碼很好的優化

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代碼片段和文件信息

#include
#define?uchar?unsigned?char
#define?uint?unsigned?int
sbit?wa=P2^6;
sbit?wu=P2^7;
uchar?num=40xyt=0l=45h=80;
uchar?code?table[]={
0x3f0x060x5b0x4f
0x660x6d0x7d0x07
0x7f0x6f0x770x7c
0x390x5e0x790x71};
uchar?code?a[]={?0x010x020x04};


void?delay(int?z)
{??for(x=z;z>0;z--)
??????for(y=110;y>0;y--);

}
void?main()
???{?
????TMOD=1;
????TH0=(65536-50000)/256;
????TL0=(65536-50000)%256;
????EA=1;
????ET0=1;
????TR0=1;
???
????while(1)
???
??????{if(num<=40&&num>0)
???{?wa=1;
????????wu=0;
P1=table[num%10];
delay(5);
????wu=1?;
wa=0;
P1=table[num/10];
delay(5);
P3=a[0];}
if(l<=5&&l>0)
???? ?{?
???wa=1;
???????????wu=0;
? ???P1=table[l%10];
???delay(5);
???????wu=1?;
???wa=0;
???P1=table[l/10];
???delay(5);
???P3=a[1];
????}
?if(h<=35&&h>0)
????{
?wa=1;
?????????????wu=0;
? ?????P1=table[h%10];
?????delay(5);
?????????wu=1?;
?????wa=0;
??????P1=table[h/10];
?????delay(5);
?????P3=a[2];




}

??? }
???
???}



?void?time()?interrupt ?1
??{
?? ???TH0=(65536-50000)/256;
???????TL0=(65536-50000)%256;
?? ???t++;
???if(t==20)
?????{
? t=0;
num--;
l--;
h--;
if(h==0)
?num=40;
?if(num==0)
??l=5;
??if(l==0)
??h=35;


???}
??

?}

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件???????6376??2005-03-22?15:22??紅綠燈\STARTUP.A51

?????文件??????14078??2012-04-06?18:11??紅綠燈\STARTUP.LST

?????文件????????758??2012-04-06?18:11??紅綠燈\STARTUP.OBJ

?????文件???????4906??2012-04-06?18:11??紅綠燈\紅綠燈

?????文件???????1382??2012-04-06?18:11??紅綠燈\紅綠燈.c

?????文件??????38582??2012-03-26?19:17??紅綠燈\紅綠燈.DSN

?????文件???????1244??2012-04-06?18:11??紅綠燈\紅綠燈.hex

?????文件?????????45??2012-04-06?18:11??紅綠燈\紅綠燈.lnp

?????文件???????4468??2012-04-06?18:11??紅綠燈\紅綠燈.LST

?????文件???????7866??2012-04-06?18:11??紅綠燈\紅綠燈.M51

?????文件???????4843??2012-04-06?18:11??紅綠燈\紅綠燈.OBJ

?????文件???????1027??2012-04-12?21:17??紅綠燈\紅綠燈.Opt

?????文件????????176??2012-04-12?19:18??紅綠燈\紅綠燈.plg

?????文件????????742??2012-10-24?20:52??紅綠燈\紅綠燈.PWI

?????文件???????2157??2012-03-26?19:19??紅綠燈\紅綠燈.Uv2

?????目錄??????????0??2013-02-19?22:44??紅綠燈

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

????????????????88650????????????????????16


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