main.c.bak

ATmegal128的PWM测试程序

#include <iom128.h>
#define	TIME_FOR_B_SIGNAL	1905		//	8MHz/(2100*2)	= 4388


void main(void)
{
	SREG=0x80;
  TIMSK  |= 0x04;
  
  TCNT1	= 0x00;
  OCR1A	= TIME_FOR_B_SIGNAL;
	TCCR1A	= 0x40;						//	CTC Mode(OCR1A)
	TCCR1B	= 0xc9;						//	Noise Cancelar=OFF, Rising Edge, clk/1
	TIMSK	&= ~bTICIE1;				//	Timer/Counter1 Input Capture Interrupt Disable
}