help không đọc được ADC 10 bit

[FXR]

Các bác cao thủ xem giúp em với. Các bác bắt bệnh giúp em, em không đọc được ADC 10 bít mà nó chỉ trả về có 8 bit thui
còn đây là code của em ạ

/************************************************** ***
This program was produced by the
CodeWizardAVR V2.03.4 Standard
Automatic Program Generator
© Copyright 1998-2008 Pavel Haiduc, HP InfoTech s.r.l.
http://www.hpinfotech.com

Project :
Version :
Date : 8/8/2011
Author :
Company :
Comments:


Chip type : ATmega16
Program type : Application
Clock frequency : 8.000000 MHz
Memory model : Small
External RAM size : 0
Data Stack size : 256
************************************************** ***/

#include <mega16.h>

// Alphanumeric LCD Module functions
#asm
.equ __lcd_port=0x15 ;PORTC
#endasm
#include <lcd.h>

#include <delay.h>

#define FIRST_ADC_INPUT 0
#define LAST_ADC_INPUT 1
unsigned int adc_data[LAST_ADC_INPUT-FIRST_ADC_INPUT+1];
#define ADC_VREF_TYPE 0x00

// ADC interrupt service routine
// with auto input scanning
interrupt [ADC_INT] void adc_isr(void)
{
static unsigned char input_index=0;
// Read the AD conversion result
adc_data[input_index]=ADCW;

// Select next ADC input
if (++input_index > (LAST_ADC_INPUT-FIRST_ADC_INPUT))
input_index=0;
ADMUX=(FIRST_ADC_INPUT | (ADC_VREF_TYPE & 0xff))+input_index;
// Delay needed for the stabilization of the ADC input voltage
delay_us(10);
// Start the AD conversion
ADCSRA|=0x40;
}
void lcd_putnum(unsigned char so,unsigned char x,unsigned char y)
{
unsigned char a,b,c,d;
a=so/1000;
// lay fan tram
b=(so-1000*a)/100;
// lay fan tram
c=(so-1000*a-100*b)/10;
d=(so-1000*a-100*b-c*10);
// lay hang don vi
lcd_gotoxy(x,y);
// ve vi tri x,y
lcd_putchar(a+48);
// day ra hang tram, ma ascii
lcd_putchar(b+48);
// day ra hang chuc, ma ascii
lcd_putchar(c+48);
lcd_putchar(d+48);
// day ra hang don vi, ma ascii
}


// 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=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: 250.000 kHz
// ADC Voltage Reference: AREF pin
// ADC Auto Trigger Source: None
ADMUX=FIRST_ADC_INPUT | (ADC_VREF_TYPE & 0xff);
ADCSRA=0xCD;

// LCD module initialization
lcd_init(16);

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

while (1)
{ lcd_putnum(adc_data[0],0,1);
delay_ms(100);
// Place your code here

};
}

em cảm ơn nhiều ạ

[mrcuongcon]

void lcd_putnum(unsigned char so,unsigned char x,unsigned char y)
{
unsigned char a,b,c,d;
a=so/1000;
// lay fan tram
b=(so-1000*a)/100;
// lay fan tram
c=(so-1000*a-100*b)/10;
d=(so-1000*a-100*b-c*10);
// lay hang don vi
lcd_gotoxy(x,y);
// ve vi tri x,y
lcd_putchar(a+48);
// day ra hang tram, ma ascii
lcd_putchar(b+48);
// day ra hang chuc, ma ascii
lcd_putchar(c+48);
lcd_putchar(d+48);
// day ra hang don vi, ma ascii
}

Chỗ này, bạn đổi "unsigned char so" thành "unsigned int so"

[FXR]

vâng em cảm ơn bác nhiều nhé