spin stepper motor

TO TEST

#include <avr/io.h>

#include <avr/interrupt.h>

#include <util/delay.h>

/* Prototypes */

void InitUART (unsigned char baudrate);

unsigned char ReceiveByte (void);

void mydelay (void);

void TransmitByte (unsigned char data);

void forward (int steps);

void reverse (int steps);

/* --------------------------------------------------------------

Main - simple program to spin a stepper motor.

Forward - pass in the number of steps to spin forward

Revers - pass in the number of steps to spin in reverse

---------------------------------------------------------------- */

int

main (void)

{

DDRB = 0xFF; // set port B to output only

PORTB = 0; // set pins low

forward (10);

reverse (10);

forward (20);

reverse (20);

forward (30);

reverse (30);

forward (40);

reverse (40);

forward (50);

reverse (50);

while (1)

{

}

}

void

forward (int steps)

{

int i;

for (i = 0; i < steps; i++)

{

mydelay (); //

PORTB = 5;

mydelay (); //

PORTB = 9;

mydelay (); //

PORTB = 10;

mydelay (); //

PORTB = 6;

mydelay (); //

}

}

void

reverse (int steps)

{

int i;

for (i = 0; i < steps; i++)

{

mydelay (); //

PORTB = 6;

mydelay (); //

PORTB = 10;

mydelay (); //

PORTB = 9;

mydelay (); //

PORTB = 5;

mydelay (); //

}

}

void

mydelay (void)

{

_delay_ms (1000); //

}