OPEN LOOP CONTROL OF DC MOTOR

OPEN LOOP DC MOTOR CONTROL

CODE:

/**********************************************************************

NAME:MOHSIN KHAN

DC MOTOR CONTROL USING PIC18F4550 IN A OPEN LOOP

**********************************************************************/

#include<p18f452.h>

#pragma config WDT=OFF

#pragma config OSC=HS,OSCS=OFF                      

#pragma config BORV=45,PWRT=ON,BOR=ON

#define SW0 PORTBbits.RB0

#define SW1 PORTBbits.RB1

#define EN PORTCbits.RC0

#define MTR PORTCbits.RC1

void delay(unsigned int d);

void main()

{

          TRISD=0xC0;   //RD7 as input

          TRISC=0x00;   //RC1 as output

          MTR=0;

         

                   if(SW0==1&&SW1==1)

                   {

                                      EN=1;

                                      MTR=1;

                   }

                             else if(SW0==0&&SW1==1)

                             {

                                      EN=1;

                                      MTR=1;

                                      delay(20);

                                      MTR=0;

                                      delay(80);

                             }

                             else if(SW0==1&& SW1==0)

                             {

                                     

                                      EN=1;

                                      MTR=1;

                                      delay(50);

                                      MTR=0;

                                      delay(20);

                             }

                             else

                             {

                                      MTR=0;

                             }

         

}

void delay(unsigned int d)

{

          unsignedinti,j;

          for(i=0;i<1200;i++)

                   for(j=0;j<d;j++);

}        

         

RESULT: