adc.h

avr基础程序大全

#include <iom16v.h>
#include <macros.h>
#define  uchar unsigned char
#define  uint  unsigned int
uint mega16_adc()
{
     uint addata;
	 DDRA&=~BIT(0);
	 PORTA&=~BIT(0);
	 ADMUX=0x40;
	 ADCSR=0X80;
	 ADCSR|=BIT(6);
	 while(!(ADCSR&(BIT(4))));
     addata=ADCL;
	 addata=addata+ADCH*256;
	 return addata;
}