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timers in mplab question

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cipi-cips

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hello

Is it possible to compare value with timer in c18 compiler, if yes can you show me how
for example

I have variable that change from 1000-2000 and i have timer where interrupt occurs every 20ms

while (my_variable <= timer)
{
do something
}


thx
 

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void interrupt(){
 
    if(INTCON.TMR0IF){
 
        INTCON.TMR0IF = 0;
        TMR0H = x;
        TMR0L = y;
        timer++;
        
    }
 
}
 
 
void main(){
 
 
 
    //Initialize and start Timer0 here
 
    while(1){
    
        
        if(my_variable <= timer){
 
        }
    }
}
 

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