MSP430 with a DC motor

The explanation for this project can be found here: Video explanation

Subscribe to the channel for more such content.

Below is the code:

#include <msp430g2553.h>

int count = 0;

void main()

{

WDTCTL = WDTPW | WDTHOLD;   // Stop watchdog timer

P1DIR |= BIT6|BIT2;

P1SEL |= BIT6; //P1.6 TA0.1 output signal for DC motor

P1OUT &= ~(BIT2);  //P1.2 for DC motor 

P1DIR &= ~BIT3; //Button P1.3

P1REN |= BIT3;

P1OUT |= BIT3;

P1IE |= BIT3;

P1IES |= BIT3;

CCR0 = 1000-1;

CCTL1 = OUTMOD_7;

__enable_interrupt();

__low_power_mode_0();

}

#pragma vector=PORT1_VECTOR

__interrupt void P1_Func()

{

int i = 0;

count = count + 1;

switch (count)

{

case 1: CCR1 = 850-1;

TACTL = TASSEL_2 + MC_1;

break;

case 2: CCR1 = 250-1;

count = 0;

break;

}

while(i<500)

{

if((P1IN&BIT3))

i++;

else

i=0;

}

P1IFG &= ~BIT3;

}