Stepper Motor interfacing with 8051,

[pankaj]

Hi friends
I am having problem in interfacing 8051 uC with stepper motor.
My aim is to rotate the stepper motor by +90 degree when i push a “UP” button once and when I push the “UP” button twice +180 degree and then +270 then 0 degree.
And when I push “DOWN” button rotate by -90 degree and when I push DOWN twice -180 degree and so on.

I am working on a Proteus but I think there is problem in program and I am not able to get proper result.

Can you any one give me proper Program for that

Thanks in advance

[AJISH ALFRED]

Hi Pankaj,
Please try it on real hardware.

[daniel diamenu]

hi can i have a look at your circuit so i can help with the program, i think that is the way u can get better help

thank u

[pankaj]

I started doing it on real hardware, with bipolar stepper motor, crystal 12MHz, capacitor 33pF ,AT89C51, and L293D .

And my program is:

 

It is working in proteus but not working in hardware:

 

Reference:http://www.electrosome.com/interfacing-stepper-motor-8051-keil-c-at89c51/

 

#include<reg51.h> //using AT89C51

#include<stdio.h>

void delay(int); // Rotation In sequence without any switch continously

void main()

{

P1=0;

P2=0;

P3=0;

  do

  {

    P2=0x01; //0001

    delay(100);

    P2=0x04; //0100

    delay(100);

    P2=0x02; //0010

    delay(100);

    P2=0x08; //1000

    delay(100);

  }while(1);

}

 

void delay(int k)

{

  int i,j;

  for(i=0;i<k;i++)

  {

    for(j=0;j<1725;j++)

    {}

  }

}

 

wysiwyg_imageupload:11078:

[pankaj]

I am working on real hardware it is not giving any desired response (at output pins)  how ever it works perfectly in Proteus my circuit is:

hardware: AT89C51, capacitor 33pF, crystal 12MHz, Bipolar Stepper Motor (4 wire)…

 

my program is:

 

#include<reg51.h> //using AT89C51

#include<stdio.h>

void delay(int); // Rotation In sequence without any switch continously

void main()

{

P1=0;

P2=0;

P3=0;

  do

  {

    P2=0x01; //0001

    delay(100);

    P2=0x04; //0100

    delay(100);

    P2=0x02; //0010

    delay(100);

    P2=0x08; //1000

    delay(100);

  }while(1);

}

 

void delay(int k)

{

  int i,j;

  for(i=0;i<k;i++)

  {

    for(j=0;j<1725;j++)

    {}

  }

}

 

wysiwyg_imageupload:11079:

[pankaj]

Now it is rotation but after few steps it stop rotating… 

tried to change the program but same result… 

My motor is:

 

NMB-MAT pm35s-048 FEE6

                     

                        TB6628D

 

I am giving 9 volt supply through HW HI Watt battery (vallue of current is not given in battery)…

 

Is the current is not enouth to rotate the rotor ?

[AJISH ALFRED]

Hi Pankaj,

Please post the circuit diagram of the real hardware, that image dosen’t look like one.

[Author]

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