پروژه راه اندازی سنسور دیجیتال رطوبت HS1101 با استفاده از مجموعه آموزشی AVR WIZARD توسط برد پلاریس به زبان C

				
					 
#include <mega16a.h>
 
#include <delay.h>
 
// Alphanumeric LCD functions
#include <alcd.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
// Declare your global variables here
 char   apply_rising=1;  
 unsigned long int t0_ovf=0; 
 unsigned long int high_time=0;
 unsigned long int low_time=0;              
 unsigned  char freq[30];
// External Interrupt 1 service routine
interrupt [EXT_INT0] void ext_int0_isr(void)
{
// Place your code here
TCCR0=0;
if(apply_rising==1)
{
  low_time=t0_ovf*256+TCNT0;
  // INT1 Mode: Falling Edge 
  MCUCR=(0<<ISC11) | (0<<ISC10) | (1<<ISC01) | (0<<ISC00);             
  apply_rising=0;
 
else
{
  high_time=t0_ovf*256+TCNT0;
  // INT1 Mode: Rising Edge  
  MCUCR=(0<<ISC11) | (0<<ISC10) | (1<<ISC01) | (1<<ISC00); 
  apply_rising=1;
}
 TCNT0=0x00;
 t0_ovf=0;
TCCR0=(0<<WGM00) | (0<<COM01) | (0<<COM00) | (0<<WGM01) | (0<<CS02) | (1<<CS01) | (1<<CS00);
}
// Timer 0 overflow interrupt service routine
interrupt [TIM0_OVF] void timer0_ovf_isr(void)
{
// Place your code here
 t0_ovf++;
}
void main(void)
{
float FREQUENCY,cycle;
// Declare your local variables here
 
// Input/Output Ports initialization
// Port A initialization
// Function: Bit7=In Bit6=In Bit5=In Bit4=In Bit3=In Bit2=In Bit1=In Bit0=In 
DDRA=(0<<DDA7) | (0<<DDA6) | (0<<DDA5) | (0<<DDA4) | (0<<DDA3) | (0<<DDA2) | (0<<DDA1) | (0<<DDA0);
// State: Bit7=T Bit6=T Bit5=T Bit4=T Bit3=T Bit2=T Bit1=T Bit0=T 
PORTA=(0<<PORTA7) | (0<<PORTA6) | (0<<PORTA5) | (0<<PORTA4) | (0<<PORTA3) | (0<<PORTA2) | (0<<PORTA1) | (0<<PORTA0);
 
// Port B initialization
// Function: Bit7=In Bit6=In Bit5=In Bit4=In Bit3=In Bit2=In Bit1=In Bit0=In 
DDRB=(0<<DDB7) | (0<<DDB6) | (0<<DDB5) | (0<<DDB4) | (0<<DDB3) | (0<<DDB2) | (0<<DDB1) | (0<<DDB0);
// State: Bit7=T Bit6=T Bit5=T Bit4=T Bit3=T Bit2=T Bit1=T Bit0=T 
PORTB=(0<<PORTB7) | (0<<PORTB6) | (0<<PORTB5) | (0<<PORTB4) | (0<<PORTB3) | (0<<PORTB2) | (0<<PORTB1) | (0<<PORTB0);
 
// Port C initialization
// Function: Bit7=In Bit6=In Bit5=In Bit4=In Bit3=In Bit2=In Bit1=In Bit0=In 
DDRC=(0<<DDC7) | (0<<DDC6) | (0<<DDC5) | (0<<DDC4) | (0<<DDC3) | (0<<DDC2) | (0<<DDC1) | (0<<DDC0);
// State: Bit7=T Bit6=T Bit5=T Bit4=T Bit3=T Bit2=T Bit1=T Bit0=T 
PORTC=(0<<PORTC7) | (0<<PORTC6) | (0<<PORTC5) | (0<<PORTC4) | (0<<PORTC3) | (0<<PORTC2) | (0<<PORTC1) | (0<<PORTC0);
 
// Port D initialization
// Function: Bit7=In Bit6=In Bit5=In Bit4=In Bit3=In Bit2=In Bit1=In Bit0=In 
DDRD=(0<<DDD7) | (0<<DDD6) | (0<<DDD5) | (0<<DDD4) | (0<<DDD3) | (0<<DDD2) | (0<<DDD1) | (0<<DDD0);
// State: Bit7=T Bit6=T Bit5=T Bit4=T Bit3=T Bit2=T Bit1=T Bit0=T 
PORTD=(0<<PORTD7) | (0<<PORTD6) | (0<<PORTD5) | (0<<PORTD4) | (0<<PORTD3) | (0<<PORTD2) | (0<<PORTD1) | (0<<PORTD0);
 
// External Interrupt(s) initialization
// INT0: On
// INT0 Mode: Rising Edge
// INT1: Off
// INT2: Off
 
MCUCR=(0<<ISC11) | (0<<ISC10) | (1<<ISC01) | (1<<ISC00);
MCUCSR=(0<<ISC2);
GIFR=(0<<INTF1) | (1<<INTF0) | (0<<INTF2);
// Timer/Counter 0 initialization
// Clock source: System Clock
// Clock value: 250.000 kHz
// Mode: Normal top=0xFF
// OC0 output: Disconnected
// Timer Period: 1.024 ms
TCCR0=(0<<WGM00) | (0<<COM01) | (0<<COM00) | (0<<WGM01) | (0<<CS02) | (1<<CS01) | (1<<CS00);
TCNT0=0x00;
OCR0=0x00;
 
// Timer(s)/Counter(s) Interrupt(s) initialization
TIMSK=(0<<OCIE2) | (0<<TOIE2) | (0<<TICIE1) | (0<<OCIE1A) | (0<<OCIE1B) | (0<<TOIE1) | (0<<OCIE0) | (0<<TOIE0);
 
// Alphanumeric LCD initialization
// Connections are specified in the
// Project|Configure|C Compiler|Libraries|Alphanumeric LCD menu:
// RS - PORTB Bit 0
// RD - PORTB Bit 1
// EN - PORTB Bit 2
// D4 - PORTA Bit 4
// D5 - PORTA Bit 5
// D6 - PORTA Bit 6
// D7 - PORTA Bit 7
// Characters/line: 16
lcd_init(16);
// Global enable interrupts
#asm("sei")
 lcd_clear();
 lcd_putsf("   HI Welcom");   
 delay_ms(2000);
while (1)
      {    
         lcd_clear();   
         lcd_putsf("www.redronic.com");  
         #asm("cli");  
         cycle=(float)(high_time+low_time)*0.000004;  //.000004 TIMER COUNT PRIOD
         #asm("sei");
         FREQUENCY=1/cycle;                               // frequency calculation
         ftoa(FREQUENCY,0,freq); 
         lcd_gotoxy( 0 ,1); 
         lcd_putsf("HS1101:"); 
         lcd_gotoxy(9 ,1);             
         lcd_puts(freq); 
); 
         lcd_putsf("Hz");   
         delay_ms(5000);
      
      }
}