SparkFun Forums

[kakatant]

Dear all Sir/Madam,
I have facing a problem when used Attiny2313 control my Parallax Standard Servo Motor. I used 16MHZ Crystal and below are my code. Can anyone tell me what went wrong when i try to simulate it my motor only full speed turn CW...

#include <avr/io.h>
#include <util/delay.h>

//Simple Wait Function
void Wait()
{
uint8_t i;
for(i=0;i<50;i++)
{
_delay_loop_2(0);
_delay_loop_2(0);
_delay_loop_2(0);
}

}

void main()
{
//Configure TIMER1
TCCR1A|=(1<<COM1A1)|(1<<COM1B1)|(1<<WGM11); //NON Inverted PWM
TCCR1B|=(1<<WGM13)|(1<<WGM12)|(1<<CS11)|(1<<CS10); //PRESCALER=64 MODE 14(FAST PWM)

ICR1=4999; //fPWM=50Hz (Period = 20ms Standard).

DDRD|=(1<<PD4)|(1<<PD5); //PWM Pins as Out

while(1)
{

OCR1A=375; //0 degree
Wait();

OCR1A=325; //90 degree
Wait();

OCR1A=425; //180 degree
Wait();
}
}