Hi post the compressed proteus project and Do you want to just adjust the values in the display by 3 buttons?? like one is used for selecting the segment one for increment and another one for decrement??
//PIC16F627A
//4MHz Internal OSC
//MUX by the MUC itself with Interrupt
//TMR0 .. check the prescelar+delay in scan routine as they are related
//punkky@gmail.com
unsigned short number [10] = {0x5F, 0x06, 0x9b, 0x8f, 0xC6, 0xCd, 0xDD, 0x07, 0xDf, 0xCf};
unsigned short digit [6];
unsigned short counter;
unsigned short shift_register;
unsigned short x1;
unsigned short x2;
unsigned short x3;
unsigned short x4;
unsigned short x5;
unsigned short x6;
unsigned short tick;
void interrupt ()
{
if (INTCON.T0IF)
{
//Scan digits with TMR0
INTCON.T0IF = 0;
if (counter == 5)
{
PORTA = number [digit [counter]];
Delay_us (500);
shift_register = 0x01;
PORTB = ~shift_register;
PORTA = 0x00;
counter = 0;
} else
{
PORTA = number [digit [counter]];
Delay_us (500);
shift_register = shift_register << 1;
PORTB = ~shift_register;
PORTA = 0x00;
counter ++;
}
}
if (PIR1.TMR1IF)
{
TMR1H = 0x80;
PIR1.TMR1IF = 0;
tick = 1;
//update current time
x6 ++;
if (x6 > 9)
{
x6 = 0;
x5 ++;
if (x5 > 9)
{
x5 = 0;
x4 ++;
if (x4 > 9)
{
x4 = 0;
x3 ++;
if (x3 > 9)
{
x3 = 0;
x2 ++;
if (x2 > 9)
{
x2 = 0;
x1 ++;
if (x1 > 9)
{
x1 = 0;
}
}
}
}
}
}
}
}
void main ()
{
//Digital I/O for PORTA
CMCON = 0x07;
TRISA = 0x00;
PORTA = 0x00;
TRISB = 0x00;
PORTB = 0x00;
//Internal Clock 4MHz
PCON.OSCF = 1;
counter = 0;
// Enable TMR0
OPTION_REG.T0CS = 0;
// Enable Prescaler
OPTION_REG.PSA = 0;
// PS0,1,2 = 010 = 3
// 3 means 1:8 prescaler
// 1:2, 1:4, 1:8, 1:16, 1:32, 1:64, 1:128, 1:256
OPTION_REG.PS2 = 0;
OPTION_REG.PS1 = 1;
OPTION_REG.PS0 = 0;
INTCON.T0IF = 0;
INTCON.T0IE = 1;
INTCON.GIE = 1;
INTCON.PEIE = 1;
T1CON = 0x0F;
TMR1H = 0x80;
TMR1L = 0x00;
// Enable TMR1 interrupt
PIE1.TMR1IE = 1;
shift_register = 0x01;
x1 = 0;
x2 = 0;
x3 = 0;
x4 = 0;
x5 = 0;
x6 = 0;
while (1)
{
if (tick)
{
tick = 0;
//update digits
digit [0] = x1;
digit [1] = x2;
digit [2] = x3;
digit [3] = x4;
digit [4] = x5;
digit [5] = x6;
}
}
}