PROBLEM WITH RB INTERRUPT

[MAY]

Hi all

I am having a problem with this code using RB interrupt.

#include <16F877A.h>

#FUSES XT, NOWDT, LVP, NOPUT, NOPROTECT, BROWNOUT

#use delay(clock=4000000)

#INT_RB
void RB_isr ( )
{

output_d(INPUT_B());

}


void main()
{
set_tris_b(0xff);
set_tris_d(0x00);
enable_interrupts(INT_RB);
enable_interrupts(GLOBAL);
do { } while(True);

}

When I run it using Isis simulator it works fine but on the actual circuit it doesn't. I tried a simple program on my circuit and it works, so I assume my connections are fine.

Is there something missing in the code?
Please help me ...

[May]

I'm really sorry I didn't use the "Code" feature. I couldn't edit my post.
sorry again.

[FvM]

The code seems correct except for one detail. You should never enable LVP, when the respective programming pins are used as I/O.