ad._c

来自「ICC LCD波形显示子程序,采用MEGA128单片机」· _C 代码 · 共 30 行

//ICC-AVR application builder : 2007-5-23 20:55:56
// Target : M128
// Crystal: 16.000Mhz
#include <iom128v.h>
#include <macros.h>
#include "all.h"
#define uchar unsigned char 
#define uint unsigned int 
#pragma interrupt_handler ad_handler:22
void ad_handler(void)
{
 	  static unsigned char i;
	  int addata;
      char cSREG;
      cSREG=SREG;
      _CLI();
      addata=ADCH;
	  addata = addata<<8;
	  addata |=ADCL;
      ADCSRA |=BIT(ADSC);  //第7位是ad使能位;
	  ADMUX = 0x01;
	  ADCSRA = 0x8e;
//	  return addata;
	  _NOP();
      _SEI();
      SREG=cSREG;
  //记得转换完毕后要下一次使能,并且要开中断;   
}