Цифровой амперметр

#endasm

#include <lcd.h> 

#define ADC_VREF_TYPE 0x00 

float amper;

char buff[4];

// Management LCD

void recode_data(void)

{

  ftoa(amper,2,buff);

}

void add_lcd()

{

  lcd_clear();         //очистка экрана

  lcd_putsf("Сила тока=");          // вывод    

  lcd_puts(buff);         // вывод на экран

  lcd_putsf("mA"); 

  delay_ms(25);           

} 

// ADC interrupt service routine

interrupt [ADC_INT] void adc_isr(void)

{

  amper=(((ADCW*5)/1024.)*0.835);

  recode_data();

  add_lcd();

} 

// Declare your global variables here 

void main(void)

{

// Declare your local variables here 

// Input/Output Ports initialization

// 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

// Func6=In Func5=In Func4=In Func3=In Func2=In Func1=In Func0=In

// 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

TCCR0=0x00;

TCNT0=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

MCUCR=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: AREF pin

ADMUX=ADC_VREF_TYPE;

ADCSRA=0x8A;

ADMUX.0=0;                             

ADMUX.1=1;                                  // задание порта выхода        

ADMUX.2=0;                            

ADMUX.3=0;                              

ADMUX.7=1;                                // внутренний источник напряжения 

ADMUX.6=1;  

ADCSRA.7=1;                              // включение АЦП  

ADCSRA.6=1;                              // запуск преобразования

ADCSRA.5=1;                              // непрерывное преобразование

ADCSRA.4=1; 
 

// LCD module initialization

lcd_init(40);

PORTB.1=1;

PORTB.2=1; 

// Global enable interrupts

#asm("sei") 

while (1)

      {

      // Place your code here 

      };

}