Interrupt is blocked by function!

Hi!

I've got the problem, that if I declare a variable in a function, the interrupt is blocked.

#include <18F4525.h>

#fuses HS,NOWDT,NOPROTECT,NOLVP
#use delay(clock=20000000)
#use rs232(baud=19200, xmit=PIN_C6, rcv=PIN_C7, ERRORS, stream=PC)

int1 function() {
int32 cnt;  /*This seems to block the INTERRUPT #INT_RDA - But why?*/
while(1) {
}

} //END function

#INT_RDA
void seriell() {
char c;
c=getc(PC);
output_high(pin_b4);
} //END seriell

void main() {

ENABLE_INTERRUPTS(INT_RDA);      //serieller Empfang
ENABLE_INTERRUPTS(Global);

function(); 

   while (1) {
   } //END while
} //END main

Why does the declaration of a variable in a function block the interrupt?

PS: I use the CCS C Compiler with MPLAB and a PIC18F4525.

I really don't know what you're trying to do in your program..

But i think you need to remove this from your function to make your program work perfectly, even along with variable declaration.

while(1) {
}

If that does not solve your problem can you explain me what you mean by blocking your interrupt and symptoms of your program when it is running with variable deceleration?

sorry, the problem was somewhere else

In #INT_TIMER3 a function was called which waited on a action to be taken in #INT_RDA. And I think this was too much for the PIC.

But thanks for your help.

Problem solved.

PS: The while(1)-Loop is no problem, its not blocking an Interrupt.
With "blocking interrupt" I meant that something impeded that the µC jumped to the interrupt.

Happy to hear that problem is solved Keep workin