For function going wrong?

i have made code have easy way (half)step stepper
the stepper 200 steps make full circle

if

code: [select]

stepf(200);it goes around 4 times.

when do

code: [select]

stepf(50);it perfect circle.

can help?

code: [select]

int steppin1 = 8;
int steppin2 = 9;
int steppin3 = 10;
int steppin4 = 11;
int val = 10;

void setup()
{
 pinmode(steppin1, output);
 pinmode(steppin2, output);
 pinmode(steppin3, output);
 pinmode(steppin4, output);
}

void stepf(int steps)
{
 for (int i=0; < steps; i++)
 {
 digitalwrite(steppin1, high);
 digitalwrite(steppin2, low);
 digitalwrite(steppin3, low);
 digitalwrite(steppin4, low);
 delay(val);
 digitalwrite(steppin1, high);
 digitalwrite(steppin2, low);
 digitalwrite(steppin3, high);
 digitalwrite(steppin4, low);
 delay(val);
 digitalwrite(steppin1, low);
 digitalwrite(steppin2, low);
 digitalwrite(steppin3, high);
 digitalwrite(steppin4, low);
 delay(val);
 digitalwrite(steppin1, low);
 digitalwrite(steppin2, high);
 digitalwrite(steppin3, high);
 digitalwrite(steppin4, low);
 delay(val);
 digitalwrite(steppin1, low);
 digitalwrite(steppin2, high);
 digitalwrite(steppin3, low);
 digitalwrite(steppin4, low);
 delay(val);
 digitalwrite(steppin1, low);
 digitalwrite(steppin2, high);
 digitalwrite(steppin3, low);
 digitalwrite(steppin4, high);
 delay(val);
 digitalwrite(steppin1, low);
 digitalwrite(steppin2, low);
 digitalwrite(steppin3, low);
 digitalwrite(steppin4, high);
 delay(val);
 digitalwrite(steppin1, high);
 digitalwrite(steppin2, low);
 digitalwrite(steppin3, low);
 digitalwrite(steppin4, high);
 delay(val);
 }
}

void stepb(int times)
{
 for (int i=0; < times; i++)
 {
  digitalwrite(steppin1, low);
 digitalwrite(steppin2, low);
 digitalwrite(steppin3, low);
 digitalwrite(steppin4, high);
 delay(val);
 digitalwrite(steppin1, low);
 digitalwrite(steppin2, high);
 digitalwrite(steppin3, low);
 digitalwrite(steppin4, high);
 delay(val);
 digitalwrite(steppin1, low);
 digitalwrite(steppin2, high);
 digitalwrite(steppin3, low);
 digitalwrite(steppin4, low);
 delay(val);
 digitalwrite(steppin1, low);
 digitalwrite(steppin2, high);
 digitalwrite(steppin3, high);
 digitalwrite(steppin4, low);
 delay(val);
 digitalwrite(steppin1, low);
 digitalwrite(steppin2, low);
 digitalwrite(steppin3, high);
 digitalwrite(steppin4, low);
 delay(val);
 digitalwrite(steppin1, high);
 digitalwrite(steppin2, low);
 digitalwrite(steppin3, high);
 digitalwrite(steppin4, low);
 delay(val);
 digitalwrite(steppin1, high);
 digitalwrite(steppin2, low);
 digitalwrite(steppin3, low);
 digitalwrite(steppin4, low);
 delay(val);
 digitalwrite(steppin1, high);
 digitalwrite(steppin2, low);
 digitalwrite(steppin3, low);
 digitalwrite(steppin4, high);
 delay(val);
 }
}

void loop()
{
 stepf(200);
 stepb(200);
}

it looks you're performing 8 steps per iteration of loop. if each half-step, 50 * 8 / 2 == 200; 50 times 8 half-steps 1 complete revolution of 200 steps.

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