To develop skills to interface stepper motor to 89c51 and rotate in clockwise and anticlockwise direction.

 

Exp 15: Aim: To develop skills to interface stepper motor to 89c51 and rotate in clockwise and anticlockwise direction.

Flowchart: 

Algorithm: 

1. Initialize port P2 as output.
2. Send hex value 0x33 to port 2 and add delay
3. Send hex value 0x66 to port 2 and add delay.
4. Send hex value 0xCC to port 2 and add delay.
5. Send hex value 0x99 to port 2 and add delay.
6. Repeat from step2.

Diagram:

 

OR

 

 

Program:

Step 3: ‘C’ Language Program   #include<reg51.h>     void delay_ms(unsigned int);   void main (void)  { P2=0x00;   while(1)  {   P2=0x33;   delay_ms(100);   P2=0x66;   delay_ms(100);  P2=0xCC;  delay_ms(100);  P2=0x99;  delay_ms(100);  } }   void delay_ms(unsigned int k) {  unsigned int i,j;   for(i=0;i<k;i++)   {     for(j=0;j<1275;j++);   } }

Comments   /* Special function register declarations */ /* For the intended 8051 derivative */   //Function prototype declaration       //Make port as output   //Infinite loop                         //Delay function

 

Conclusion:

In this experiment, we learnt to develop interface of stepper motor in clockwise and anticlockwise direction.