How to control speed of dc motor using potentiometer | DC Motor speed control using potentiometer

DC Motor speed control using potentiometer

Program

C Program Code for PWM Based Speed Control of Motor

#include<msp430.h>

void main(void)

{ 

    WDTCTL=WDTPW + WDTHOLD;

    ADC10CTL0 = ADC10ON + SREF_0 + ADC10SHT_2; //Enable ADC  //module, reference      //voltage, sample &        //hold time

    ADC10CTL1 = INCH_3;                        //Select input channel 3

    ADC10AE0|= 0x08;    //Analog Enable channel 3

    P1DIR|=BIT6; //Make Port1-->Pin6 as output

    P1SEL|=BIT6; //Select PWM Function

    TA0CCR0=1024;      //Configure PWM time period

    TA0CCR1=1;          //Configure PWM ON_TIME(Duty Cycle)

    ADC10CTL0|= ENC + ADC10SC;  //ADC enable conversion & start conversion

    TA0CCTL1|=OUTMOD_7 ; //Select OUTPUT MODE 7; RESET/SET

    TA0CTL|= TASSEL_2 + ID_3 + MC_1 + TAIE; //Configure Timer0,          //SMCLK,UP mode, //Clock Source divide by 8, //Interrupt Enable

    

   

    _BIS_SR(LPM0_bits + GIE); //General Interrupt Enable

    

}

#pragma vector=TIMER0_A1_VECTOR

__interrupt void timer(void)

{

ADC10CTL0|= ENC + ADC10SC;  //ADC enable conversion & start conversion

TA0CCR1= ADC10MEM;  //Copy ADC buffer value into CCR1 to vary duty cycle

}

Circuit Connection

MSP430G2553 Overall Documentation given video description

Video 👇