화이트앳-ATMEGA128,AVR 정복,아두이노,Cortex-M3

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

00 ~ 99 까지 무한히 반복

PORTA ==> FND1 에 출력

PORTB ==> FND2 에 출력

Tools : Codevision

http://watsim.tistory.com

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

#include <mega128.h>

// FND 에 출력할 실제 데이터

int g_iCountData;

// 1초 계산을 위한 변수

int g_iTimer0Counter = 0;

void FndDisplay1(char byteData); // 1 자리 출력

void FndDisplay1(char byteData){

    switch( byteData){

    case 0: PORTA = 0b10001000; break;

    case 1: PORTA = 0b11101011; break;

    case 2: PORTA = 0b01001100; break;

    case 3: PORTA = 0b01001001; break;

    case 4: PORTA = 0b00101011; break;

    case 5: PORTA = 0b00011001; break;

    case 6: PORTA = 0b00011000; break;

    case 7: PORTA = 0b11001011; break;

    case 8: PORTA = 0x00| 0x08; break;

    case 9: PORTA = 0x01|0x08; break;

    default : PORTA = 0b11111000; break;

    }

}

void FndDisplay2(char byteData); // 10 자리 출력

void FndDisplay2(char byteData){

    switch( byteData){

    case 0: PORTB = 0b10001000; break;

    case 1: PORTB = 0b11101011; break;

    case 2: PORTB = 0b01001100; break;

    case 3: PORTB = 0b01001001; break;

    case 4: PORTB = 0b00101011; break;

    case 5: PORTB = 0b00011001; break;

    case 6: PORTB = 0b00011000; break;

    case 7: PORTB = 0b11001011; break;

    case 8: PORTB = 0x00| 0x08; break;

    case 9: PORTB = 0x01|0x08; break;

    default : PORTB = 0b11111000; break;

    }

}

// Timer 0 output compare interrupt service routine

interrupt [TIM0_COMP] void timer0_comp_isr(void)

{

    g_iTimer0Counter ++;

    if(g_iTimer0Counter>5) {

         if(++g_iCountData> 99) g_iCountData=0;

        g_iTimer0Counter = 0;

    }

}

void main(void)

{

char byteFND1;

    char byteFND2;

    g_iTimer0Counter = 0;

    g_iCountData = 0;

    DDRA=0xFF;

    DDRB=0xFF;

    ASSR=0x00;

    TCCR0=0x01;

    TCNT0=0x00;

    OCR0=0x20;

    // Timer(s)/Counter(s) Interrupt(s) initialization

    TIMSK=0x02;

    ETIMSK=0x00;

    ACSR=0x80;

    SFIOR=0x00;

    #asm("sei")

    while (1)

    {

         byteFND2 = (unsigned char)g_iCountData/10 ;

    byteFND1 = (unsigned char)g_iCountData%10;

         FndDisplay2(byteFND2);

        FndDisplay1(byteFND1);

}

}

ATMEGA128

FND5101ASR : Anode FND

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

9 ~0 까지 무한히 반복

FND 에 출력

Tools : Codevision

http://watsim.tistory.com

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

#include <mega128.h>

// time delay for us

void Delay_us(char time_us)        

{

    register char i;

    for(i = 0; i < time_us; i++)            // 4 cycle +

    {

    #asm

         PUSH R0 ;         // 2 cycle +

         POP R0 ;         // 2 cycle +

         PUSH R0 ;         // 2 cycle +

         POP R0 ;         // 2 cycle +

         PUSH R0 ;         // 2 cycle +

         POP R0 ;         // 2 cycle = 16 cycle = 1 us for 16MHz

    #endasm

    }

}

// time delay for ms

void Delay_ms(unsigned int time_ms)    

{

    register unsigned int i;

    for(i = 0; i < time_ms; i++)

    {

        Delay_us(250);

        Delay_us(250);

        Delay_us(250);

        Delay_us(250);

    }

}

// Display to FND

void FndDisplay1(char byteData);

void FndDisplay1(char byteData){

    switch( byteData){

    case 0: PORTA = 0b10001000; break;

    case 1: PORTA = 0b11101011; break;

    case 2: PORTA = 0b01001100; break;

    case 3: PORTA = 0b01001001; break;

    case 4: PORTA = 0b00101011; break;

    case 5: PORTA = 0b00011001; break;

    case 6: PORTA = 0b00011000; break;

    case 7: PORTA = 0b11001011; break;

    case 8: PORTA = 0x00| 0x08; break;

    case 9: PORTA = 0x01|0x08; break;

    default : PORTA = 0b11111000; break;

    }

}

void main(void)

{

    signed char byteA=9;

    PORTA=0x00;

    DDRA=0xFF; // output

    while (1)

    {

        FndDisplay1(byteA);

        Delay_ms(100);

        if(--byteA <0) byteA = 9;

    }

}

ATMEGA128

FND5101ASR : Anode FND