unable to take input

[srikanthind]

i wrote a small program using pic 12f675. pin 3 has been as a input. but when i was giving input through stimulus, there would be no change.
the program as like below

#
#include<pic.h>
#include<htc.h>

#define __XTAL_FREQ 4000000
//#include <delay.h>


#define GREEN 0b00000110


void interrupt Isr(void)

{
  if (GPIF)

   { 
        if(GPIO3==0)

          GPIO=0B001111111;

   }
   GPIF=0;


} 
    

void main(void)
{

  ANSEL = 0b00000000;
	OPTION = 0b11010001;
	CMCON = 0b00000000;
    TRISIO= 0B00001000;

     GIE = 1;
	//T0IE = 1;
	T0IF = 0;
    GPIF=0;
    IOCB=GPIO3; 
      
  //GPIO=0B00000100;

  __delay_ms(5);

  __delay_us(50);

  __delay_ms(200);

GPIO |= (1<<5);
GPIO &= ~(1<<7);
  GPIO=GREEN;                   

      while(1)
       {}
             
}

can someone find where it's going wrong?

thank you

 

[be80be]

You need to use code tag to post you code it's the little button that look like a # on the middle left top bar where you post.

You have CMCON wrong it should be

CMCON = 0x7; or CMCON = 0b00000111;

And rethink what was said when some one showed you this.

GPIO |= (1<<5);
GPIO &= ~(1<<7);

 

[Ian Rogers]

Confusion about Pin3.... Pin 3 is GP4.....

Binary GPIO3 = 00001000 not 00000100

GPIO0 = 00000001 pin 7
GPIO1 = 00000010 pin 6
GPIO2 = 00000100 pin 5
GPIO3 = 00001000 pin 4
GPIO4 = 00010000 pin 3
GPIO5 = 00100000 pin 2

 

[srikanthind]

the input been taking the value sometimes, it didn't work earlier and its same program. but, interrupt is not occuring...

 

[Ian Rogers]

but, interrupt is not occuring...

Read your other post!!!!

 

[be80be]

Ian I think the OP would be better to start with this. https://www.electro-tech-online.com/custompdfs/2013/05/PIC_Base_C_2.pdf