thank u Dj but the code u have written is so diffrent with what i saw in som toturials i've write sth could u check it?
thanks
#include <mega16.h>
#include <delay.h>
// Alphanumeric LCD Module functions
#asm
.equ __lcd_port=0x12 ;PORTD
#endasm
#include <lcd.h>
#define ADC_VREF_TYPE 0xE0
// 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 & 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 & 0x10)==0);
ADCSRA|=0x10;
return ADCH;
}
// Declare your global variables here
void main(void)
{
char Vref[8]={1,2,3,4,5,6,7,8};
float V;
char buffer[20];
// 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=P State6=P State5=P State4=P State3=P State2=P State1=P State0=P
PORTA=0xFF;
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=Out Func6=Out Func5=Out Func4=Out Func3=Out Func2=Out Func1=Out Func0=Out
// State7=0 State6=0 State5=0 State4=0 State3=0 State2=0 State1=0 State0=0
PORTD=0x00;
DDRD=0xFF;
// 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: Timer1 Stopped
// Mode: Normal top=FFFFh
// 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: 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: 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=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: Int., cap. on AREF
// ADC Auto Trigger Source: None
// Only the 8 most significant bits of
// the AD conversion result are used
ADMUX=ADC_VREF_TYPE & 0xff;
ADCSRA=0x82;
// LCD module initialization
lcd_init(16);
while (1)
{
if(PINA.0!=0)
{V=PINA.0;
V=V*100/Vref[0];
printf(buffer,"%d",V);
lcd_clear();
lcd_puts(buffer);
}
else
if(PINA.1!=0)
{V=PINA.1;
V=V*100/Vref[1];
printf(buffer,"%d",V);
lcd_clear();
lcd_puts(buffer);
}
else
if(PINA.2!=0)
{V=PINA.2;
V=V*100/Vref[2];
printf(buffer,"%d",V);
lcd_clear();
lcd_puts(buffer);
}
else
if(PINA.3!=0)
{V=PINA.3;
V=V*100/Vref[3];
printf(buffer,"%d",V);
lcd_clear();
lcd_puts(buffer);
}
else
if(PINA.4!=0)
{V=PINA.4;
V=V*100/Vref[4];
printf(buffer,"%d",V);
lcd_clear();
lcd_puts(buffer);
}
else
if(PINA.5!=0)
{V=PINA.5;
V=V*100/Vref[5];
printf(buffer,"%d",V);
lcd_clear();
lcd_puts(buffer);
}
else
if(PINA.6!=0)
{V=PINA.6;
V=V*100/Vref[6];
printf(buffer,"%d",V);
lcd_clear();
lcd_puts(buffer);
}
else
if(PINA.7!=0)
{V=PINA.7;
V=V*100/Vref[7];
printf(buffer,"%d",V);
lcd_clear();
lcd_puts(buffer);
}
else
lcd_puts("ready");
// Place your code here
};
}