[SOLVED] remote control code decoding using micorcontroller

[Disha Karnataki]

i have written c code 8051 microcontroller with proper timing delays but.. not displaying proper results here is the code:
in this code i am decoding only command code(i.e 6 bits in rc5 protocol) as per the image:https://www.pcbheaven.com/scripts/i...rpages/images/The_Phillips_RC5_Protocol_9.png

#include<reg51.h>
void interruptdelay(void);       
void middelay(unsigned int);	     //arbitrary delay
void delwaste(unsigned int);		 //delay to skip the reading of code upto command            
#define y P1			      //to display number in the command code  of rc5 protocol leds are connected
sbit mybit=P3^3;						 //tsop1738 signal connected at P3^3(interrupt pin)
void timer0(void) interrupt 2           //isr routine for external hardware interrupt 
{
interruptdelay();
}
void main()
{
unsigned char z=0;
P3=0XFF;  //make as input
P1=0X00;   //make as output
IE=0X84;  //low level triggered
TMOD=0X01;	  //timer 0 in mode 1
}
void interruptdelay(void)
{
unsigned int z;
delwaste(16);   //13.824ms skip
while(z!=6)    //here in rc5 protocl the command length is of 6 bits
{
  if(mybit==0)
    y=y<<1;
   else
     y|=0X01;          
   delwaste(2);
  z+=1; 
}
P1=y;   //display final value  in command code
middelay(100);   //keep the display for a little long time    

}    

void delwaste(unsigned int e)   //for e=1 creates delay of 860microsec=1.728ms/2 i.e(half of a bit)
{
for(;e>0;e--)
{
TH0=0XFC;
TL0=0XE4;
TR0=1;
if(TF0!=1);
TR0=0;
TF0=0;
}
}
void middelay(unsigned int g)   //arbitrary delay
{
unsigned int h;
for(;g>0;g--)
{
for(h=0;h<10000;h++);
}
}

 

[KlausST]

Hi,

is there any question?

If you need help, then show what you expect and waht you get instead.

Klaus

 

[Disha Karnataki]

thanks..
my problem is solved & the o/p is correctly displayed