[NPAVR Board] AVR -Atmega128 (FND, Switch)

AVR

io레지스터

DDRA = 0b1111 1111; //출력설정

PORTA = 0b1111 1111; // 포트를 출력한다.

DDRA = 0b0000 0000; // 입력설정

PORTA = 0b11111111; // Software pull-up

//

if(PINA == 0b0111 1111) // PIN 레지스터는 Read-Only 읽기만 가능.

{

PORTA = 0b0000 0000; // PORT 레지스터읽기 쓰기 둘다 가능하다.

}

 

/*
 * avr_test.cpp
 *
 * Created: 2018-09-03 오전 10:56:46
 * Author : USER
 */ 
#include <avr/io.h>
#define F_CPU 16000000
#include <util/delay.h>
 
#define LED_SEL1 (*(volatile unsigned char *)0xA000)
#define LED_SEL2 (*(volatile unsigned char *)0xB000)
#define FND (*(volatile unsigned char *)0x8000)
 
 
void io_init(void)
{
    MCUCR|=(1<<SRE) | (1<<SRW10);
    XMCRA=(1<<SRL2) | (0<<SRL1) | (0<<SRL0) | (1<<SRW01) | (1<<SRW00) | (1<<SRW11);
    XMCRB |= 0x00;
}
 
void fndController (char loc , char number){
    FND = (number <<3)|loc;
}
void fndDisplay (unsigned long long number){
    fndController(5,number%10);_delay_ms(1);
    fndController(4,(number%100)/10);_delay_ms(1);
    fndController(3,(number%1000)/100);_delay_ms(1);
    fndController(2,(number%10000)/1000);_delay_ms(1);
    fndController(1,(number%100000)/10000);_delay_ms(1);
    fndController(0,number/100000);_delay_ms(1);
    
}
int main(void)
{
    io_init();
    DDRE = 0x00;
    PORTE = 0xff;
    //int count =0;
    
    bool state = false;
    int randnum =0, dispnum =0;
    while (1)
    {
        
        /* //눌렀을 때 증가하는 소스
        if (PINE == 0b11101111 && state ==false){ count ++;state =true;}
        else if (PINE ==0b11111111&& state==true){ state =false;}
        fndDisplay(count);
        */
        // 0~100 사이의 랜덤수 출력하는 소스
        randnum++;
        if (randnum>100) randnum=0;
        if (PINE == 0b11101111 && state ==false){  dispnum= randnum;state =true;}
        else if (PINE ==0b11111111&& state==true){ state =false;}
        fndDisplay(dispnum);
        
    }
}