Ai sua giup mih code mach giao thong dung 8051 nay voi.

[chuotcon]

code nay chay dung tin hieu den giao thong nhung led hien thi bi loi.may ban coi giup minh xem loi o dau nha

Code:
#include<AT89X51.h>
unsigned char thoi_gian0,thoi_gian1,thoi_gian2,thoi_gian3;
unsigned int over=0;
unsigned char ma[10]={192,249,164,176,153,146,130,248,128,144};

void delay(unsigned char time)
{
unsigned char x,y;
for(x=0;x<time;x++)
{
for(y=0;y<13;y++);

}
}
void time0() interrupt 1
{ //cu 200 us thi tran 1 lan
over++;
if(over==4950) //gia tri tinh toan la 5000, tinh chinh lai 4950
{
over=0;
thoi_gian0--;
thoi_gian1--;
thoi_gian2--;
thoi_gian3--;
}
}

void h_thi0()
{
unsigned char k,chuc,donvi;
for(k=0;k<2;k++)
{
donvi=thoi_gian0 ;
chuc=thoi_gian0/10;
}
P2=ma[donvi];
P0=0xfe;
delay(1);
P0=0xff;
delay(1);
P0=0xfb;
delay(1);
P0=0xff;
delay(1);
P2=ma[chuc];
P0=0xfd;
delay(1);
P0=0xff;
delay(1);
P0=0xf7;
delay(1);
P0=0xff;
delay(1);
}


void h_thi1()
{
unsigned char k,chuc,donvi;
for(k=0;k<2;k++)
{
donvi=thoi_gian1 ;
chuc=thoi_gian1/10;
}
P2=ma[donvi];
P0_4=0;
delay(1);
P0_4=1;
delay(1);
P0_6=0;
delay(1);
P0_6=1;
delay(1);
P2=ma[chuc];
P0_5=0;
delay(1);
P0_5=1;
delay(1);
P0_7=0;
delay(1);
P0_7=1;
delay(1);
}

void h_thi2()
{
unsigned char k,chuc,donvi;
for(k=0;k<2;k++)
{
donvi=thoi_gian2 ;
chuc=thoi_gian2/10;
}
P2=ma[donvi];
P0_4=0;
delay(1);
P0_4=1;
delay(1);
P0_6=0;
delay(1);
P0_6=1;
delay(1);
P2=ma[chuc];
P0_5=0;
delay(1);
P0_5=1;
delay(1);
P0_7=0;
delay(1);
P0_7=1;
delay(1);
}


void h_thi3()
{
unsigned char k,chuc,donvi;
for(k=0;k<2;k++)
{
donvi=thoi_gian3 ;
chuc=thoi_gian3/10;
}
P2=ma[donvi];
P0_0=0;
delay(1);
P0_0=1;
delay(1);
P0_2=0;
delay(1);
P0_2=1;
delay(1);
P2=ma[chuc];
P0_1=0;
delay(1);
P0_1=1;
delay(1);
P0_3=0;
delay(1);
P0_3=1;
delay(1);
}
void main()
{
P0=255;
P2=255;
TMOD=2; //timer0 o che do 2 tu nap lai
TH0=54; //gia tri nap lai
TR0=1; //cho phep timer0 chay
ET0=1; //cho phep ngat timer0
EA=1;
while(1)
{
thoi_gian0=20;
thoi_gian1=24;

do
{
P1=0x21;
h_thi0();
h_thi1();
}
while(thoi_gian0!=0);

thoi_gian0=5;
thoi_gian1=5;
do
{
P1=0x22;
h_thi0();
h_thi1();
}
while(thoi_gian0!=0);

thoi_gian2=20;
thoi_gian3=24;

do
{

P1=0x0c;

h_thi2();
h_thi3();
}
while(thoi_gian2!=0);


thoi_gian2=5;
thoi_gian3=5;
do
{
P1=0x14;
h_thi2();
h_thi3();
}
while(thoi_gian2!=0);
}
}