من هدر رو به این صورت تغییر دادم
#define DHT22_PIN PINB.0
#define DHT22_DDR DDRB.0
#define DHT22_PORT PORTB.0
و در برنامه اصلی هم این تغییرات :
/*******************************************************
This program was created by the
CodeWizardAVR V3.12 Advanced
Automatic Program Generator
© Copyright 1998-2014 Pavel Haiduc, HP InfoTech s.r.l.
[External Link Removed for Guests]Project :
Version :
Date : 5/27/2017
Author :
Company :
Comments:
Chip type : ATmega32
Program type : Application
AVR Core Clock frequency: 8.000000 MHz
Memory model : Small
External RAM size : 0
Data Stack size : 512
*******************************************************/
#include <mega32.h>
// Alphanumeric LCD functions
#include <delay.h>
#include <stdio.h>
#include <alcd.h>
#include "DHT22\DHT22.h"
// Declare your global variables here
// Standard Input/Output functions
#include <stdio.h>
void main(void)
{
float temperature,humidity;
char str[10],temp[10],hum[10];
// USART initialization
// Communication Parameters: 8 Data, 1 Stop, No Parity
// USART Receiver: Off
// USART Transmitter: On
// USART Mode: Asynchronous
// USART Baud Rate: 9600
UCSRA=0x00;
UCSRB=0x08;
UCSRC=0x06;
UBRRH=0x00;
UBRRL=0x33;
// Analog Comparator initialization
// Analog Comparator: Off
// Analog Comparator Input Capture by Timer/Counter 1: Off
ACSR=0x80;
SFIOR=0x00;
lcd_init(16);
while (1)
{
if(dht22_read(&temperature,&humidity) == -40)
{
lcd_putsf("DHT22 ERROR");
}
else
{
ftoa(temperature,1,temp);
//sprintf(str,"Temp=%s",buff);
//putsf("Temp =");
//puts(str);
ftoa(humidity,1,hum);
sprintf(str,"Temp=%s,Hum=%s %",temp,hum);
//putsf("Hum =");
lcd_clear();
lcd_gotoxy(0,0);
lcd_puts(str);
}
delay_ms(2000); //ãÏÊ ÒãÇä ÊÇÎíÑ ÈÑÇí ÎæÇäÏä ãÌÏÏ ÓäÓæÑ
}
}
و در پروتئوس هم time select low را برای DHT22 برابر 1MS قرار دادم ولی در شبیه سازی فقط عدد صفر رو نشان میدهد