Programming attiny2313 in C

Question

Programming attiny2313 in C

I wrote the code in C++ for mk attiny2313 I would like to know how this code should actually look, because I believe this crutch is still

The essence of the code: when you click on the button attached to port A 0b00000001, a logical 1 is applied sequentially to ports B 0b00000001 - 0b00000100 when the counter reaches the limit, in this case 3, then everything is reset and starts again.

#include <avr/io.h>


int main(void)
{
    DDRB = 0xff;
    int count = 0;

    while (1) 
    {
        if (PINA == 0b001)
        {
            while(1)
            {
                if (PINA == 0b000)
                {
                    break;
                }
            }
            if (count <= 0)
            {
                count++;
                PORTB |= 1<<1;
            }
            else
            {
                count = 0;
                PORTB = 0b00000000;
            }
        }
    }
}

1

c avr микроконтроллеры

Author: Alexey Esaulenko, 2017-01-05

Source

1 answers

score 0 · Answer 1

Everything is simple.

int main(void)
{
    DDRB = 0xff;
    char count; // 8-битной переменной тут более чем достаточно

    while(1)
    {
        // ждём нажатия кнопки
        while (PINA != 0b001)
            ;
        // ждём отпускания кнопки
        while (PINA == 0b001)
            ;

        for (count = 0; count < 3; count++)
        {
            PORTB |= 1 << count;
            // тут нужна задержка.
            // изучить содержимое delay.h предлагаю самостоятельно
        }
        PORTB = 0;
    }
}