embedded rookie

timer0.c

#include <stdio.h>
#include <SN8F5701.H>
//variable
int count_millis=0;
uint8_t count_sec=0;
uint8_t count_min=0;

//prototype of functions
void Timer0_Init(void);

void main(){
  Timer0_Init();
  while(1){
    //just like the "loop" function in Arduino
  }
}

void Timer0_Init(){
  /* this is for 10 millisecs per cycle
  TH0=0x97;
  TL0=0xD5;
  */
  // this if for 1 millisec per cycle
  TH0=0xF5;
  TL0=0x95;
  //...still lots of setting below
}
void Timer0_ISR(void) interrupt ISRTimer0{
   count_millis++;
   if(count_millis==1000){
      count_sec++;
      count_millis=0;
   }
   if(count_sec==60){
      count_min++;
      count_sec=0;
   }
   //.. clear the value of "count_min" if needed
}