26 lines
449 B
C
26 lines
449 B
C
|
//sinusoidal PWM
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
#define F_CPU 16000000//16Mhz
|
||
|
|
#define MS_DELAY 1000
|
||
|
|
#include <avr/io.h>
|
||
|
|
#include <util/delay.h>
|
||
|
|
int main(void)
|
||
|
|
{
|
||
|
|
DDRB = 0xFF;//Port B set as output
|
||
|
|
//DDRB |= (1 <<3);//Port B(0:3) set as output
|
||
|
|
while(1)
|
||
|
|
{
|
||
|
|
for(int i=0;i<10;i++)
|
||
|
|
{
|
||
|
|
OCR0A= 0x00 + i*25;//75 percent of 255=duty cycle
|
||
|
|
TCCR0A = 0x83;//non-inverting pwm
|
||
|
|
TCCR0B = 0x03;//prescaler = 64
|
||
|
|
//output of pwm is at pin 13(OC0)
|
||
|
|
_delay_ms(500);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
}
|