[МПС] Лабораториска 5 - Микропроцесорски Системи

sbit LCD_RS at RA4_bit;
sbit LCD_EN at RA5_bit;
sbit LCD_D4 at RA0_bit;
sbit LCD_D5 at RA1_bit;
sbit LCD_D6 at RA2_bit;
sbit LCD_D7 at RA3_bit;
sbit LCD_RS_Direction at TRISA4_bit;
sbit LCD_EN_Direction at TRISA5_bit;
sbit LCD_D4_Direction at TRISA0_bit;
sbit LCD_D5_Direction at TRISA1_bit;
sbit LCD_D6_Direction at TRISA2_bit;
sbit LCD_D7_Direction at TRISA3_bit;
bit prikazuva;
int counter; // broi do 3, odnosno bidejki 128 ni e preskaler, a brojacot ni broi 187 pati, 187 * 128 * 3 = 71808 ~~ 72k == 36ms

void interrupt(){
  if (INTF_bit==1){
     prikazuva = !prikazuva;
     Lcd_Cmd(_LCD_CLEAR);
     if(prikazuva){
       Lcd_Out(1,1,"Kristijan");
       INTCON = INTCON | 0x20;  // ovozmozi tajmerot
       counter = 0;
     }
     INTF_bit = 0;
   }
   if(TMR0IF_bit){
     TMR0 = 78;         // broi 187 pati do overflow -- reset
     counter++;
     if(counter == 2) {
       Lcd_Out(2,1,"165025");
       INTF_bit = 0;
       INTCON= INTCON & 0xDF;  // iskluci go tajmerot
     }
     TMR0IF_bit = 0;
   }
}
void main() {
     int cekori = 0;
     int povtoruvanja = 0;
     ANSEL = 0;
     ANSELH= 0;
     C1ON_bit = 0;
     C2ON_bit = 0;
     TRISA = 0;
     Lcd_Init();
     INTCON=0x90;  // ovozmozi nadvoresen interrupt no ne i tajmer
     OPTION_REG = 0x86; // preskaler 1;128
     TMR0 = 78;         // broi 187 pati do overflow
     PORTA.B4 = 0;
     PORTA.B5 = 1;
     while(1){
     }
}