(Atmega16 / 32) Hiển thị nhiệt độ lên LED 7seg Và LCD 16x2 - CodeVisionAVR

/*******************************************************

Chip type               : ATmega16

Program type            : Application

AVR Core Clock frequency: 8,000000 MHz

Memory model            : Small

External RAM size       : 0

Data Stack size         : 256

*******************************************************/

#include <mega16.h>

#include <delay.h>

#include <stdio.h>

unsigned char flash Maled[12] = {0xc0,0xf9, 0xa4, 0xb0, 0x99, 0x92, 0x82, 0xf8 , 0x80, 0x90, 0x9C, 0xC6};

unsigned char value;

// Voltage Reference: Internal 2.56V AREF pin

#define ADC_VREF_TYPE ((1<<REFS1) | (1<<REFS0) | (1<<ADLAR))

// Read the 8 most significant bits

// of the AD conversion result

void hienthi(unsigned int num)

{

     unsigned int ch, dv;

     //tach num luu vao bien ch va dv \

     dv = num%10;  //ex: 15%10=5

     ch = num/10; //ex: 15/10=1  

     //hien thi led so 1

     PORTD = 0x00;

     PORTD.0 = 1;

     PORTC = Maled[ch];

     delay_ms(1); 

     //hien thi led so 2 

     PORTD = 0x00;

     PORTD.1 = 1;

     PORTC = Maled[dv];

     delay_ms(1);

     //hien thi led so 3

     PORTD = 0x00;

     PORTD.2 = 1;

     PORTC = Maled[10];

     delay_ms(1);

     //hien thi led so 4

     PORTD = 0x00;

     PORTD.3 = 1;

     PORTC = Maled[11];

     delay_ms(1); 

}

void ADC_Init()

{

   /* Make ADC port as input */  

   DDRA=0x00;            

    /* 

    ADC initialization

    ADC Clock frequency: 1000,000 kHz <=> Pescaler/8

    ADC Voltage Reference: AREF pin

    ADC Auto Trigger Source: Free Running

    Only the 8 most significant bits of

    the AD conversion result are used 

    */

   ADCSRA = (1<<ADEN)|(1<<ADATE)|(1<<ADPS1) | (1<<ADPS0); 

    /*Voltage Reference: Internal 2.56V AREF pin*/ 

   ADMUX = (1<<REFS1) | (1<<REFS0) | (1<<ADLAR); 

}

unsigned char read_adc(unsigned char adc_input)

{

ADMUX=adc_input | ADC_VREF_TYPE;

// Delay needed for the stabilization of the ADC input voltage

delay_us(10);

// Start the AD conversion

ADCSRA|=(1<<ADSC);

// Wait for the AD conversion to complete

while ((ADCSRA & (1<<ADIF))==0);

ADCSRA|=(1<<ADIF);

return ADCH;

}

void main(void)

{

ADC_Init();

DDRC = 0xff;

DDRD = 0xff;

while (1)

      {

      value=read_adc(0);

      hienthi(value);

      }

}

#include <mega16.h>

#include <alcd.h>

#include <delay.h>

#include <stdio.h>

char String[5];

char buff[20];

int value;

// Voltage Reference: Internal 2.56V AREF pin

#define ADC_VREF_TYPE ((1<<REFS1) | (1<<REFS0) | (1<<ADLAR))

// Read the 8 most significant bits

// of the AD conversion result

void ADC_Init()

{

   /* Make ADC port as input */  

   DDRA=0x00;            

    /* 

    ADC initialization

    ADC Clock frequency: 1000,000 kHz <=> Pescaler/8

    ADC Voltage Reference: AREF pin

    ADC Auto Trigger Source: Free Running

    Only the 8 most significant bits of

    the AD conversion result are used 

    */

   ADCSRA = (1<<ADEN)|(1<<ADATE)|(1<<ADPS1) | (1<<ADPS0); 

    /*Voltage Reference: Internal 2.56V AREF pin*/ 

   ADMUX = (1<<REFS1) | (1<<REFS0) | (1<<ADLAR); 

}

unsigned char read_adc(unsigned char adc_input)

{

ADMUX=adc_input | ADC_VREF_TYPE;

// Delay needed for the stabilization of the ADC input voltage

delay_us(10);

// Start the AD conversion

ADCSRA|=(1<<ADSC);

// Wait for the AD conversion to complete

while ((ADCSRA & (1<<ADIF))==0);

ADCSRA|=(1<<ADIF);

return ADCH;

}

void main(void)

{

DDRC=0x00;  /* Make port as input */ 

PORTC=0x00;

DDRD=0x00;  /* Make ADC port as input */ 

PORTD=0x00;

ADC_Init();

// Alphanumeric LCD initialization

// Connections are specified in the

// Project|Configure|C Compiler|Libraries|Alphanumeric LCD menu:

// RS - PORTC Bit 5

// RD - PORTC Bit 6

// EN - PORTC Bit 7

// D4 - PORTD Bit 4

// D5 - PORTD Bit 5

// D6 - PORTD Bit 6

// D7 - PORTD Bit 7

// Characters/line: 16

lcd_init(16);

while (1)

      {    

      value=read_adc(1);

      lcd_gotoxy(0,0); 

      sprintf(buff,"nhiet do: %d",value);

      lcd_puts(buff); 

      lcd_gotoxy(3,1);  

      lcd_puts("tcl47.com");

//      lcd_gotoxy(4,1);

//      lcd_putchar(0x30+value/10); 

//      lcd_putchar(0x30+value%10);

      }

}