Can someone help me with my pic microcontroller project???

can anyone pls explain this program to me?its an emergency n this is very important for my final yr engnr project.I need the explaination by thursday.so pls help..


#include %26lt;pic.h%26gt;


#include %26lt;stdio.h%26gt;


#include %26lt;delay10.c%26gt;





static void interrupt IntRoutine();


void Send();


short int Flg=0;


int Cnt = 0,Oflow=0,Mytime=0,Adval,Hbc,Hbr;


char St1[4],St2[4],St4[3];








void main()


{





TRISB = 0x00;


PORTB = 0x00;


TRISD = 0x00;


PORTD = 0x00;


TRISE = 0x00;


TRISC = 0xbf;





ADCON0 = 0x81;


ADCON1 = 0x82;





SPBRG = 64;





TXEN = 1;


SYNC = 0;


BRGH = 1;


SPEN = 1;


CREN = 1;





DelayMs(200);


DelayMs(200);


DelayMs(200);


DelayMs(200);


DelayMs(200);





LCD_SendCmd(0x01);





LCD_SendCmd(0x80);


LCD_puts("Ebc:");





LCD_SendCmd(0x88);


LCD_puts("Tim:");





LCD_SendCmd(0xc3);


LCD_puts("Ebr: Bpm");





T1CON = 0x00; // Enable Timer1


PEIE = 1;


GIE = 1;





TMR1IF = 0;


TMR1IE = 1;


TMR1L = 0xaf;


TMR1H = 0x3c;


TMR1ON = 1;





for(;;)


{





if(Oflow)


{


Oflow = 0;


Mytime++;


}








ADCON0 = 0x81;


DelayUs(50);


ADGO = 1;


while(ADGO) continue;





Adval = (ADRESH * 256) + ADRESL;





if(Adval %26lt; 100 %26amp;%26amp; Flg == 0)


{


Hbc++;


Flg = 1;


}





if(Adval %26gt; 100 %26amp;%26amp; Flg == 1)


{


Flg = 0;


}





if(Mytime %26gt; 3 %26amp;%26amp; Mytime %26lt; 60) RD0 = 0;





if(Mytime %26gt;= 60)


{


Mytime = 0;


Ebr = Ebc;


if(Ebc %26gt; 15)


{


RD0 = 1;


}


Ebc = 0;


}





sprintf(St1,"%3d",Ebc);


LCD_SendCmd(0x84);


LCD_puts(St1);





sprintf(St2,"%3d",Ebr);


LCD_SendCmd(0xc8);


LCD_puts(St2);





sprintf(St4,"%02d",Mytime);


LCD_SendCmd(0x8c);


LCD_puts(St4);





Send();


DelayMs(2);





}





}

















static void interrupt IntRoutine()


{





if(TMR1IF)


{


TMR1IF = 0;


Cnt++;


if(Cnt %26gt;= 50)


{


Cnt = 0;


Oflow = 1;


}





TMR1ON = 0;


TMR1L = 0xaf;


TMR1H = 0x3c;


TMR1ON = 1;





}





}

Can someone help me with my pic microcontroller project???
Do I earn your degree, if I answer your question? Please post your degree on your 360 page, so I can conveniently download it.





Thanks
Reply:well, theres a lot missing, but these lines are setting up the micro.





TRISB = 0x00;


PORTB = 0x00;


TRISD = 0x00;


PORTD = 0x00;


TRISE = 0x00;


TRISC = 0xbf;





ADCON0 = 0x81;


ADCON1 = 0x82;





SPBRG = 64;





TXEN = 1;


SYNC = 0;


BRGH = 1;


SPEN = 1;


CREN = 1;








this is initializing an LCD display after some delay time, and setting up the timer interrupt.


DelayMs(200);


DelayMs(200);


DelayMs(200);


DelayMs(200);


DelayMs(200);





LCD_SendCmd(0x01);





LCD_SendCmd(0x80);


LCD_puts("Ebc:");





LCD_SendCmd(0x88);


LCD_puts("Tim:");





LCD_SendCmd(0xc3);


LCD_puts("Ebr: Bpm");





this is setting up a timer interrupt


T1CON = 0x00; // Enable Timer1


PEIE = 1;


GIE = 1;





TMR1IF = 0;


TMR1IE = 1;


TMR1L = 0xaf;


TMR1H = 0x3c;


TMR1ON = 1;








this is the timer interrupt, just setting Oflow to 1 when it reaches a certain time


static void interrupt IntRoutine()


{





if(TMR1IF)


{


TMR1IF = 0;


Cnt++;


if(Cnt %26gt;= 50)


{


Cnt = 0;


Oflow = 1;


}





TMR1ON = 0;


TMR1L = 0xaf;


TMR1H = 0x3c;


TMR1ON = 1;





}





}





this is a never ending loop, and it looks like it is reading in an A/D converter every Mytime amount of time and probably displaying the results on the LCD. its hard to tell without the rest of the code though.





for(;;)


{





if(Oflow)


{


Oflow = 0;


Mytime++;


}








ADCON0 = 0x81;


DelayUs(50);


ADGO = 1;


while(ADGO) continue;





Adval = (ADRESH * 256) + ADRESL;





if(Adval %26lt; 100 %26amp;%26amp; Flg == 0)


{


Hbc++;


Flg = 1;


}





if(Adval %26gt; 100 %26amp;%26amp; Flg == 1)


{


Flg = 0;


}





if(Mytime %26gt; 3 %26amp;%26amp; Mytime %26lt; 60) RD0 = 0;





if(Mytime %26gt;= 60)


{


Mytime = 0;


Ebr = Ebc;


if(Ebc %26gt; 15)


{


RD0 = 1;


}


Ebc = 0;


}





sprintf(St1,"%3d",Ebc);


LCD_SendCmd(0x84);


LCD_puts(St1);





sprintf(St2,"%3d",Ebr);


LCD_SendCmd(0xc8);


LCD_puts(St2);





sprintf(St4,"%02d",Mytime);


LCD_SendCmd(0x8c);


LCD_puts(St4);





Send();


DelayMs(2);





}





}
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