led.c

avr常用功能程序中包含了pwm、adc、中断、定时、i2c等各程序可供开发者直接使用

#include <avr/io.h>
#include <stdlib.h>
int main(void)
{
unsigned int t,times;
DDRB=0XFF;
DDRD=0XFF;
DDRA=0XFF;
while(1)
	{PORTB=0xF3;
	 PORTA=0xF3;
	}
	/*
		PORTB=0x00;
		PORTD=0XFF;
			for(times=0;times<=10;times++)
			{
				for(t=0;t<=50000;t++);
			}
		
		PORTB=0XFF;
		PORTD=0X00;
			for(times=0;times<=10;times++)
			{
				for(t=0;t<=50000;t++);
			}
		
				
	}	

 /*	unsigned char i,j;
	for(i=0;;i++)
	{
		j=i;
		DDRB=0X00;
		PORTB=j;
	}
	while(1)
	{;}
	return 0;*/
}