handling IO interrupts pic16f628a hitech c lite

hey guys..

i enabled my globle interrupts (GIE = 1) and the port b interrupts(RBIE = 1) and followed the usual manner of handling the interrupt but for some reason my interrupt function seems to be running all the time.. in the case of external interrupts we dont have to read from a flag like timers do we?
what i did was check if my pin is high

void interrupt int_handler(void) {

if(RB0) {

//do this and that

}

}

is there something wrong in my method.. do i have to clear any particular bit to exit the interrupt function

normad said:

in the case of external interrupts we dont have to read from a flag like timers do we?

Click to expand...

Yes, you do.


If you only need to check one pin use the RB0/INT, INTE=1; Then from your ISR check and clear INTF.