Program Pengukuran Suhu dengan CodeVisionAVR

/*****************************************************
This program was produced by the
CodeWizardAVR V1.25.9 Evaluation
Automatic Program Generator
© Copyright 1998-2008 Pavel Haiduc, HP InfoTech s.r.l.
http://www.hpinfotech.com
Project :
Version :
Date : 2/7/2010
Author : Freeware, for evaluation and non-commercial use only
Company :
Comments:
Chip type : ATmega8535L
Program type : Application
Clock frequency : 8.000000 MHz
Memory model : Small
External SRAM size : 0
Data Stack size : 128
*****************************************************/
#include <mega8535.h>
#include <stdio.h>
// Alphanumeric LCD Module functions
#asm
.equ __lcd_port=0x15 ;PORTC //LCD diPORTC
#endasm
#include <delay.h>
#include <lcd.h>
#define ADC_VREF_TYPE 0x60
#define alarm PORTB.0 //alarm di hubungkan dg PORTB.0
// Read the 8 most significant bits
// of the AD conversion result
unsigned char read_adc(unsigned char adc_input)
{
ADMUX=adc_input | (ADC_VREF_TYPE &amp; 0xff);
// Delay needed for the stabilization of the ADC input voltage
delay_us(10);
// Start the AD conversion
ADCSRA|=0x40;
// Wait for the AD conversion to complete
while ((ADCSRA &amp; 0x10)==0);
ADCSRA|=0x10;
return ADCH; //resolusi 8 bit
}
// Declare your global variables here
unsigned char meri[33];
void lcd(unsigned int dat) //subfungsi LCD
{
sprintf(meri,"%d ",dat);
lcd_puts(meri);
}
void main(void)
{
// Declare your local variables here
unsigned int suhu;
float adc;
// 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=0x00;
DDRA=0x00;
// 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=0x00;
// 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: Timer 0 Stopped
// Mode: Normal top=FFh
// OC0 output: Disconnected
TCCR0=0x00;
TCNT0=0x00;
OCR0=0x00;
// Timer/Counter 1 initialization
// Clock source: System Clock
// Clock value: Timer 1 Stopped
// Mode: Normal top=FFFFh
// OC1A output: Discon.
// OC1B output: Discon.
// Noise Canceler: Off
// Input Capture on Falling Edge
// Timer 1 Overflow Interrupt: Off
// Input Capture Interrupt: Off
// Compare A Match Interrupt: Off
// Compare B Match Interrupt: Off
TCCR1A=0x00;
TCCR1B=0x00;
TCNT1H=0x00;
TCNT1L=0x00;
ICR1H=0x00;
ICR1L=0x00;
OCR1AH=0x00;
OCR1AL=0x00;
OCR1BH=0x00;
OCR1BL=0x00;
// Timer/Counter 2 initialization
// Clock source: System Clock
// Clock value: Timer 2 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=0x00;
// Analog Comparator initialization
// Analog Comparator: Off
// Analog Comparator Input Capture by Timer/Counter 1: Off
ACSR=0x80;
SFIOR=0x00;
// ADC initialization
// ADC Clock frequency: 1000.000 kHz
// ADC Voltage Reference: AVCC pin //Tegangan referensi AVCC=5 volt
// ADC High Speed Mode: Off
// ADC Auto Trigger Source: None
// Only the 8 most significant bits of
// the AD conversion result are used
ADMUX=ADC_VREF_TYPE &amp; 0xff;
ADCSRA=0x83;
SFIOR&amp;=0xEF;
// LCD module initialization
lcd_init(16);
while (1)
{
// Place your code here
adc = read_adc(0); //output LM35 dihubungkan di PINA.0
suhu=adc*1.961; //perhitungan suhu
if (suhu&lt;27&amp;&amp;suhu&gt;33)
{ //jika suhu dibawah 27 derajat diatas 32 derajat celcius
alarm=1; // maka alarm hidup
}
Else //jika suhu normal
{
alarm=0; // maka alarm mati
}
lcd_putsf("Suhu sekarang adalah= ");
lcd(suhu); //pemanggilan subfungsi lcd
delay_ms(1000); //waktu tunda 1000 ms
lcd_clear(); //layar lcd dibersihlkan
};
}

2 komentar:

  1. syntax ini maksudnya apa mas ??

    nsuhu<27&&suhu>33

    BalasHapus
  2. wah keren juga ya :D visit back

    BalasHapus

Silahkan Bergabung dulu untuk meninggalkan komentar Anda,Terima Kasih...!!!