p._c

AVR单片机实现脉冲采集

#include<iom8v.h>		//包含ATMEGA8的头文件
#include<macros.h>		//包含一些常用宏的定义
//#define osccal 0xaa//内部RC 校正常数
#define fosc 8000000 //晶振8MHZ
#define baud 4800 //波特率
#define osccal_addr         0x1ff
//内部晶体震荡器校正字存放地址
#define uchar unsigned char

unsigned char e,Getbit,f,xx,i,ic=2,K,c,j,A,d,h1,l1,d1,t,s,
              Getdata[9]={0xee,0xee,0,0,0,0,0,0,0},
			  Getdata_bak[9]={0xee,0xee,0,0,0,0,0,0,0};
unsigned int m,n;
///////////////延时
void delay(unsigned int x)
{
   while(x-->0)
    {
    for(j=0;j<5;j++)
    {;}
    }
}

unsigned char EEPROM_read(unsigned int uiAddress)
{while(EECR&(1<<EEWE));
 EEAR=uiAddress;
 EECR|=(1<<EERE);
 return EEDR;
}


void main(void)
{  delay(9000);
   OSCCAL=EEPROM_read(osccal_addr);
   DDRD=0xff; //IO口的初始化
    SEI();//开全局中断
   

   while(1)
		{
		PORTD|=(1<<3);////////////////////////////////
		PORTD&=~(1<<3);
		delay(50);
		}	
}