Dear Friends,

I am working on TImer 2 of PIC16F877.

Code is given below.

void main()
{
	TRISB0 = 0;
	RB0 = 0;
	inittimer2();

	while(1)
	{
	}
}

void inittimer2(void)
{	
	TMR2 = 0x00;
	T2CON = 0x75;  // Prescaler 4, Postscaler 
	TMR2IF = 0;
	TMR2IE = 1;
	PR2 = 0xFF;
	
}

void interrupt ISR(void)
{
	if(TMR2IF)
	{
		RB0=~RB0;
		TMR2IF=0;
	}
}

But this code is not working.
Can anybody suggest what may be the problem???

 

...But this code is not working.
Can anybody suggest what may be the problem???

Can you suggest what "not working" means?

 

I don't see GIE nor PEIE (see INTCON register, page 24 of the datasheet) being set - these are required to use interrupts and use peripheral interrupts.

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