Cześć, jak mogę zapisać czas, w którym wciśnięty był przycisk próbuję to zrobić tak, że do zmiennej "real_time_sec" zapisuję aktualny czas w sekundach od uruchomienia urządzenia, a aby wykryć czas kliknięcia przycisku używam stałej "clicked_time". Niestety czas zapisuję się tam cały czas aktualna wartość czasu. Jak to zrobić poprawnie?
/*
Digital clock
*/
#include <avr/io.h>
#include <avr/interrupt.h>
#include "HD44780.h"
#include <stdio.h>
#include <stdlib.h>
#define F_CPU 1000000UL
#define KEY1_UP (PIND & (1 << PD2))
#define KEY2_UP (PIND & (1 << PD3))
#define KEY3_UP (PINB & (1 << PB6))
#define KEY4_UP (PINB & (1 << PB7))
#define timer0_start 196
#define timer2_start 6
uint8_t modeFlag = 1;
uint8_t ableToEdit = 1;
volatile uint8_t seconds = 0;
volatile uint8_t minutes = 0;
volatile uint8_t hours = 0;
char secondsBuffer[3];
char minutesBuffer[3];
char hoursBuffer[3];
volatile uint8_t key1_Status;
int real_time_sec;
ISR(TIMER0_OVF_vect)
{
TCNT0 = timer0_start;
static uint8_t lkey1 = 0;
static uint8_t lkey2 = 0;
static uint8_t lkey3 = 0;
static uint8_t lkey4 = 0;
if(!KEY1_UP)
{
if(!lkey1)
{
lkey1 = 1;
key1_Status = lkey1;
if(ableToEdit == 1)
{
if(modeFlag > 3)
{
modeFlag = 1;
}
modeFlag++;
}
}
}
else
{
if(lkey1)
{
lkey1 = 0;
key1_Status = lkey1;
}
}
if(!KEY2_UP)
{
const int clicked_time = real_time_sec;
if(!lkey2)
{
lkey2 = 1;
if(ableToEdit == 1)
{
switch(modeFlag)
{
case 1:
hours ++;
if(hours >= 24)
{
hours = 0;
}
break;
case 2:
minutes ++;
if(minutes >= 60)
{
minutes = 0;
}
break;
case 3:
seconds ++;
if(seconds >= 60)
{
seconds == 0;
}
break;
}
while(!KEY2_UP && (real_time_sec - clicked_time) == 3)
{
switch(modeFlag)
{
case 1:
hours ++;
if(hours >= 24)
{
hours = 0;
}
break;
case 2:
minutes ++;
if(minutes >= 60)
{
minutes = 0;
}
break;
case 3:
seconds ++;
if(seconds >= 60)
{
seconds == 0;
}
break;
}
}
}
}
}
else
{
if(lkey2)
{
lkey2 = 0;
}
}
if(!KEY3_UP)
{
if(!lkey3)
{
lkey3 = 1;
ableToEdit = 1;
modeFlag = 1;
TCCR1B &= ~(1 << CS12);
TCCR1B &= ~(1 << CS10);
}
}
else
{
if(lkey3)
{
lkey3 = 0;
}
}
if(!KEY4_UP)
{
if(!lkey4)
{
lkey4 = 1;
ableToEdit = 0;
modeFlag = 1;
TCCR1B |= (1 << CS12) | (1 << CS10);
}
}
else
{
if(lkey4)
{
lkey4 = 0;
}
}
}
ISR(TIMER1_COMPA_vect)
{
real_time_sec++;
seconds++;
if(seconds >= 60)
{
seconds = 0;
minutes ++;
if(minutes >= 60)
{
seconds = 0;
minutes = 0;
hours ++;
if(hours >= 24)
{
hours = minutes = seconds = 0;
}
}
}
}
int main(void)
{
DDRD &= ~(1 << PD2);
DDRD &= ~(1 << PD3);
DDRB &= ~(1 << PB6);
DDRB &= ~(1 << PB7);
DDRB |= (1 << PB0);
PORTD |= (1 << PD2);
PORTD |= (1 << PD3);
PORTB |= (1 << PB6);
PORTB |= (1 << PB7);
_delay_ms(10);
// LCD init
LCD_Initalize();
// Timer1 init
TCCR1B |= (1 << WGM12);
OCR1A = 977;
TIMSK |= (1 << OCIE1A);
TCNT0 = timer0_start;
TIMSK |= (1 << TOIE0);
TCCR0 |= (1 << CS02) | (1 << CS00);
sei();
while(1)
{
if(hours >= 24)
{
hours = 0;
}
if(minutes >= 60)
{
minutes = 0;
}
if(seconds >= 60)
{
seconds = 0;
}
if(modeFlag > 3)
{
modeFlag = 1;
}
itoa(seconds, secondsBuffer, 10);
itoa(minutes, minutesBuffer, 10);
itoa(hours, hoursBuffer, 10);
LCD_Clear();
LCD_GoTo(0, 0);
if(ableToEdit == 1 && modeFlag == 1)
{
LCD_GoTo(4, 0);
LCD_WriteText("Godziny");
}
else if(ableToEdit == 1 && modeFlag == 2)
{
LCD_GoTo(5, 0);
LCD_WriteText("Minuty");
}
else if(ableToEdit == 1 && modeFlag == 3)
{
LCD_GoTo(4, 0);
LCD_WriteText("Sekundy");
}
else
{
LCD_GoTo(0, 0);
LCD_WriteText("Aktualna godzina");
}
LCD_GoTo(4, 1);
switch(hours)
{
case 24:
LCD_WriteText("00");
break;
case 0:
LCD_WriteText("00");
break;
case 1:
LCD_WriteText("01");
break;
case 2:
LCD_WriteText("02");
break;
case 3:
LCD_WriteText("03");
break;
case 4:
LCD_WriteText("04");
break;
case 5:
LCD_WriteText("05");
break;
case 6:
LCD_WriteText("06");
break;
case 7:
LCD_WriteText("07");
break;
case 8:
LCD_WriteText("08");
break;
case 9:
LCD_WriteText("09");
break;
default:
LCD_WriteText(hoursBuffer);
}
LCD_GoTo(6, 1);
LCD_WriteText(":");
LCD_GoTo(7, 1);
switch(minutes)
{
case 0:
LCD_WriteText("00");
break;
case 1:
LCD_WriteText("01");
break;
case 2:
LCD_WriteText("02");
break;
case 3:
LCD_WriteText("03");
break;
case 4:
LCD_WriteText("04");
break;
case 5:
LCD_WriteText("05");
break;
case 6:
LCD_WriteText("06");
break;
case 7:
LCD_WriteText("07");
break;
case 8:
LCD_WriteText("08");
break;
case 9:
LCD_WriteText("09");
break;
default:
LCD_WriteText(minutesBuffer);
}
LCD_GoTo(9, 1);
LCD_WriteText(":");
LCD_GoTo(10, 1);
switch(seconds)
{
case 0:
LCD_WriteText("00");
break;
case 1:
LCD_WriteText("01");
break;
case 2:
LCD_WriteText("02");
break;
case 3:
LCD_WriteText("03");
break;
case 4:
LCD_WriteText("04");
break;
case 5:
LCD_WriteText("05");
break;
case 6:
LCD_WriteText("06");
break;
case 7:
LCD_WriteText("07");
break;
case 8:
LCD_WriteText("08");
break;
case 9:
LCD_WriteText("09");
break;
default:
LCD_WriteText(secondsBuffer);
}
_delay_ms(200);
}
return 0;
}
