frisdrankmachine

#include <msp430.h>
#pragma vector = PORT1_VECTOR

void if_first_button_is_pressed(void){
    P1OUT |= 1<<1;
    __delay_cycles(10000000);
    P1OUT &= ~(1<<1);
}

void if_second_button_is_pressed(void){
    P1OUT |= 1<<3;
    __delay_cycles(10000000);
    P1OUT &= ~(1<<3);
}

void if_third_button_is_pressed(void){
    P1OUT |= 1<<6;
    __delay_cycles(10000000);
    P1OUT &= ~(1<<6);
}

void if_fourth_button_is_pressed(void){
    P2OUT |= 1<<1;
    __delay_cycles(10000000);
    P2OUT &= ~(1<<1);
}


int main(void){

    WDTCTL = WDTPW | WDTHOLD;   // stop watchdog timer
    DCOCTL = 0;
    BCSCTL1 = CALBC1_1MHZ;
    DCOCTL = CALDCO_1MHZ;

    P1DIR &= ~1; //button 1
    P1DIR |= 1<<1; //motor pin 1
    P1OUT &= ~(1<<1);

    P1DIR &= ~(1); // pull down resistor button 1
    P1REN |= 1;
    P1OUT &= ~(1);

    P1DIR &= ~(1<<2); // button pin 2
    P1DIR |= 1<<3; // motor pin 2
    P1OUT &= ~(1<<3);

    P1DIR &= ~(1<<2); //pull down resistor button 2
    P1REN |= 1<<2;
    P1OUT &= ~(1<<2);

    P1DIR &= ~(1<<4); // button pin 3
    P1DIR |= 1<<6;
    P1OUT &= ~(1<<6);

    P1DIR &= ~(1<<4); //pull down resistor button 3
    P1REN |= 1<<4;
    P1OUT &= ~(1<<4);

    P2DIR &= ~1; //button 4
    P2DIR |= 1<<1; //motor pin 4
    P2OUT &= ~(1<<1);

    P2DIR &= ~1; // pull down resistor button
    P2REN |= 1;
    P2OUT &= ~1;

    while(1){
        if((P1IN & 1) != 0){
            if_first_button_is_pressed();
        }else if((P1IN & 1) == 0){
            P1OUT &= ~(1<<1);

        }if((P1IN & 1<<2) != 0){
            if_second_button_is_pressed();
        }else if((P1IN & 1<<2) == 0){
            P1OUT &= ~(1<<3);

        }if((P1IN & 1<<4) != 0){
            if_third_button_is_pressed();
        }else if((P1IN & 1<<4) == 0){
            P1OUT &= ~(1<<6);

        }if((P2IN & 1) != 0){
            if_fourth_button_is_pressed();
        }else if((P2IN & 1) == 0){
            P2OUT &= ~(1<<1);
        }
    }
}