ia2

///1

#include <xc.h>
__PROG_CONFIG(1,0x3FE4);
__PROG_CONFIG(2,0x1EFF);
unsigned char a;
unsigned long b;
void init_uC(void);
void main(void)
{
init_uC();
while(1)
{
for(a=0x0;a<0x80;a<<=1)
PORTA=a;
for(b=0;b<52408;b++)
{
while(!TMR0IF);
TMR0=245
TMR0IF=0;
}
}
for(a=0x80;a>0x01;a>>=1)
{
PORTA=a;
for(b=0;b<52408;b++)
{
while(!TMR0IF);
TMR0=245;
TMR0IF=0;
}
}
}
}
void init_uC(void)
{
OSCCON=0x7B;
TRISA=0b00000000;
ANSELA=0x00;
PORTA=0b00000000;
OPTION_REG=0b00000001;
TMR0IF=0;
TMR0=245;
}




///2
#include <xc.h>
__PROG_CONFIG(1,0xFE4);
__PROG_CONFIG(2,0x1EFF);
#define LED1 RB0;
#define LED2 RB1;
#define LED3 RB2;
#define LED4 RB3;
unsigned char n;
unsigned long y;
void init_uC(void);
void interrupt etti(void);
void main(void)
{
init_uC();
while(1);
{
switch(n)
{
case 0: LED1=0;
LED2=1;
LED3=0;
LED4=0;
break;
case 1: LED1=1;
LED2=0;
LED3=0;
LED4=0;
break;
case 2: LED1=1;
LED2=0;
LED3=1;
LED4=0;
break;
case 3: LED1=0;
LED2=0;
LED3=0;
LED4=0;
break;
case 4: LED1=0;
LED2=0;
LED3=0;
LED4=1;
break;
}
}
}
void init_uC(void)
{
OSCCON=0x6B;
TRISB=0b00000000;
ANSELB=0x00;
PORTB=0b00000000;
OPTION_REG=0b00000001;
TMR0IF=0;
TMR0=5;
TMR0IE=1;
GIE=1;
}
void interrupt etti(void)
{
if(TMR0IF)
{
TMR0IF=0;
TMR0=5;
}
if(n<5)
n++;
else
n=0;
}




///3
#include <xc.h>
__PROG_CONFIG(1,0x3FE4);
__PROG_CONFIG(2,0x3703);
#define buton RA0
unsigned char a;
unsigned char v[10


#include <xc.h>
__PROG_CONFIG(1,0x3FE4);
__PROG_CONFIG(2,0x1EFF);
unsigned char a, b=0;
unsigned char v[10] = { 0x03, 0x9F, 0x25, 0x0D, 0x99, 0x49, 0x41, 0x1F, 0x01, 0x09};
unsigned int nr,up,down;
void init (void);
void interrupt ia2(void);
void main(void)
{
init();
while (1)
 {
up=1;
down=0;
PORTC=v[nr/10];
PORTB=v[nr%10];
if(!buton)
{
nr=0;
while(up)
{
 if(a< 20)
 {
 a = 0;
nr++;
if(nr==15)
{
up=0;
down=1;
}
PORTB = v[nr/10];
PORTC= v[nr%10];
}
while(down)
{
while(a<25);
a=0;
nr--;
if(nr==0)
{
down=0;
up=1;
}
PORTB=v[nr/10];
PORTC=v[nr%10];
}
}
}
}
void init (void)
{
OSCCON=0x73;
ANSELB = 0x00;
TRISC=0x04;
ANSELA=0x00;
TRISB = 0x00;
TRISC=0x00;
PORTB = 0xFF;
PORTC=0xFF;
T1CON = 0x11;
TMR1IE = 1;
PEIE = 1;
GIE = 1;
}
void interrupt ia2(void)
{
if(TMR1IF)
 {
 TMR1IF = 0;
 TMR1H = 0x3C;
 TMR1L = 0xAF;
 a++;
 }
}