3510testadc.c

这是一个使用NOKIA 3510I的液晶屏+AVR单片机来制作的电压表

//3510testADC.c : source file for the 3510test ADC
//

#include "3510test.h"
#include "3510testADC.h"
#include "3510.h"

/////////////////////////////////////////////////////////////////////////////
//3510testADC



void adc_init(void)
{
	//{{WIZARD_MAP(ADC)
	// ADC Clock: 15.625kHz
	// ADC Voltage Reference: Internal 2.56V
	// ADC Noise Canceler Disabled
	SFIOR |= 0x0;
    ADMUX =(1<<REFS0)|(1<<REFS1)|(1<<MUX1)|(1<<MUX0); //采用内部2.56参考电压，ADC3输入
    ADCSRA=(1<<ADEN)|(1<<ADSC)|(1<<ADIE)|(1<<ADPS2)|(1<<ADPS1) ;//ADC转换 64分频
	//}}WIZARD_MAP(ADC)
}

SIGNAL(SIG_ADC)
{

 ADMUX =(1<<REFS0)|(1<<REFS1)|(1<<MUX1)|(1<<MUX0);
 ADCSRA|=(1<<ADSC);//启动AD转换
	
}