Help with AT89C2051

[Ahmed]

Hi There

 

I use AT89C2051 to contrall  traffic light with PC

 

my problem is with port1 that P1^0,P1^1 always disabled whene i program the ATMEL but in the Proteus Works good????

 

what is the reson ????

 

this is the code

 

http://www.4shared.com/file/MfKAR5vs/Traffic.html

[romel emperado]

pls post your code here..

[Ahmed]

I Use ALL-11P3 Programmer you know

[Ahmed]

This is the Code Romel

the delay function can i calculate the time delay by using ((1/11.0592*10^6)*80000)??

or ther is another way to calculate???

 

 

/* *********************************************************************************************

 

Project: Traffic Project (COM1)

File: Traffic.txt

Data: 8/4/2011

Processor: AT89C2051

 

Program to Controll Traffic with PC with provment of LED

 

********************************************************************************************* */

 

 

#include<reg51.h>

unsigned char temp;

 

sbit trR3=P3^2;

sbit trY3=P3^3;

sbit trG3=P3^4;

sbit trR4=P3^5;

sbit trG4=P3^7;

sbit trY4=P1^7; // Port Of LED’s

 

void ini()     // Initialize Timer 1 for serial communication

{

TMOD=0x20;  //Timer1, baud rate 9600 bps

SCON=0x50; // 8-Bit

TH1=0XFD; //Load the timer high with initial value for serial connection

TR1=1; //Start Timer 1

}

 

void delay() //simple Delay

{

int k,l;

for(k=0;k<1000;k++)

for(l=0;l<80;l++);

}

 

void recieve()  //Function to receive serial data for controlling

{

while(RI==0);

temp=SBUF;

switch(temp) // Sequence Of LED of traffic.

{

case(‘1’):

P1=0x0c;

trR3=1;

trY3=0;

trG3=0;

trR4=1;

trY4=0;

trG4=0;

break;

 

case(‘2’):

P1=0x12;

trR3=1;

trY3=0;

trG3=0;

trR4=1;

trY4=0;

trG4=0;

break;

case(‘3’):

P1=0x21;

trR3=1;

trY3=0;

trG3=0;

trR4=1;

trY4=0;

trG4=0;

break;

case(‘4’):

P1=0x11;

trR3=0;

trY3=1;

trG3=0;

trR4=1;

trY4=0;

trG4=0;

break;

case(‘5’):

P1=0x09;

trR3=0;

trY3=0;

trG3=1;

trR4=1;

trY4=0;

trG4=0;

break;

case(‘6’):

P1=0x09;

trR3=0;

trY3=1;

trG3=0;

trR4=0;

trY4=1;

trG4=0;

break;

case(‘7’):

P1=0x09;

trR3=1;

trY3=0;

trG3=0;

trR4=0;

trY4=0;

trG4=1;

break;

case(‘8’):

P1=0x0a;

trR3=1;

trY3=0;

trG3=0;

trR4=0;

trY4=1;

trG4=0;

break;

case(‘0’):

P1=0;

P1=0x12;

trR3=0;

trY3=1;

trG3=0;

trR4=0;

trY4=1;

trG4=0;

 

delay();

P1=0;

trR3=0;

trY3=0;

trG3=0;

trR4=0;

trY4=0;

trG4=0;

}

 

RI=0;

}

 

void main() //main Program.

{

 

ini(); //initialize the microcontroller

while(1) // infinit loop

{

recieve();

}

} //End of Program

[Author]

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