کمک برای ایجاد تغییر در برنامه

[jhamed]

سلام
من یک کد برای کنترل یک ترموستات با میکرو دارم که میتونه تو هر 450ثانیه دو تا کلید رو بزنه -مربوط به دکمه set ,و down ترموستات-
من میخوام تو همون زمان بجای یک مرتبه دومرتبه کلیدِdown مورد نظر رو بزنه
کدوم قسمت کد رو باید تغییر بدم؟

کد:

/*****************************************************
This program was produced by the
CodeWizardAVR V2.04.4a Advanced
Automatic Program Generator
© Copyright 1998-2009 Pavel Haiduc, HP InfoTech s.r.l.
http://www.hpinfotech.com

Project :
Version :
Date : 2010/11/23
Author : NeVaDa
Company : Warner Brothers Movie World
Comments:


Chip type : ATmega16
Program type : Application
AVR Core Clock frequency: 16.000000 MHz
Memory model : Small
External RAM size : 0
Data Stack size : 256
*****************************************************/
#include <mega16.h>
#include <delay.h>
//
unsigned char i,flag=0;
// Timer 0 output compare interrupt service routine
interrupt [TIM0_COMP] void timer0_comp_isr(void)
{
// Place your code here

}

// Timer1 output compare A interrupt service routine
interrupt [TIM1_COMPA] void timer1_compa_isr(void)
{
// Place your code here
static unsigned int cnt;
//cnt=0;
PORTA.0=~PORTA.0;
if (++cnt == 450) // 450 sec
{
cnt=0;
PORTA.1=~PORTA.1;
flag=1;
}
}

// Declare your global variables here

void main(void)
{
// Declare your local variables here

// Input/Output Ports initialization
// Port A initialization
// Func7=In Func6=In Func5=In Func4=In Func3=In Func2=In Func1=In Func0=In
// State7=T State6=T State5=T State4=T State3=T State2=T State1=T State0=T
PORTA=0xFF;
DDRA=0xFF;

// Port B initialization
// Func7=In Func6=In Func5=In Func4=In Func3=In Func2=In Func1=In Func0=In
// State7=T State6=T State5=T State4=T State3=T State2=T State1=T State0=T
PORTB=0x00;
DDRB=0x00;

// Port C initialization
// Func7=In Func6=In Func5=In Func4=In Func3=In Func2=In Func1=In Func0=In
// State7=T State6=T State5=T State4=T State3=T State2=T State1=T State0=T
PORTC=0x00;
DDRC=0x81;

// Port D initialization
// Func7=In Func6=In Func5=In Func4=In Func3=In Func2=In Func1=In Func0=In
// State7=T State6=T State5=T State4=T State3=T State2=T State1=T State0=T
PORTD=0x00;
DDRD=0x00;

// Timer/Counter 0 initialization
// Clock source: System Clock
// Clock value: 250.000 kHz
// Mode: CTC top=OCR0
// OC0 output: Disconnected
TCCR0=0x0B;
TCNT0=0x00;
OCR0=0xFA;

// Timer/Counter 1 initialization
// Clock source: System Clock
// Clock value: 15.625 kHz
// Mode: CTC top=ICR1
// OC1A output: Discon.
// OC1B output: Discon.
// Noise Canceler: Off
// Input Capture on Falling Edge
// Timer1 Overflow Interrupt: Off
// Input Capture Interrupt: Off
// Compare A Match Interrupt: On
// Compare B Match Interrupt: Off
TCCR1A=0x00;
TCCR1B=0x1D;
TCNT1H=0x00;
TCNT1L=0x00;
ICR1H=0x3d;
ICR1L=0x09;
OCR1AH=0x00;
OCR1AL=0x34;
OCR1BH=0x00;
OCR1BL=0x00;

// Timer/Counter 2 initialization
// Clock source: System Clock
// Clock value: Timer2 Stopped
// Mode: Normal top=FFh
// OC2 output: Disconnected
ASSR=0x00;
TCCR2=0x00;
TCNT2=0x00;
OCR2=0x00;

// External Interrupt(s) initialization
// INT0: Off
// INT1: Off
// INT2: Off
MCUCR=0x00;
MCUCSR=0x00;

// Timer(s)/Counter(s) Interrupt(s) initialization
TIMSK=0x12;

// Analog Comparator initialization
// Analog Comparator: Off
// Analog Comparator Input Capture by Timer/Counter 1: Off
ACSR=0x80;
SFIOR=0x00;

// Global enable interrupts
#asm("sei")

while (1)
{
// Place your code here
if(flag == 1)
{
flag=0;
for (i=0;i<5;i++)
{
PORTC.0=1;
PORTA.7=0;
delay_ms(300);
PORTC.0=0;
PORTA.7=1;
delay_ms(300);
}
delay_ms(2000);
//____________________
PORTC.7=1;
PORTA.5=0;
delay_ms(250);
PORTC.7=0;
PORTA.5=1;
//delay_ms(2000);

}
};
}