adc.c

来自「共享几个AVR单片机的常用代码」· C语言 代码 · 共 38 行

#include "ADC.h"

void ADC_Init(uint8_t Sync)
{

	ADMUX	=	0xE0;
	if(Sync)
	{
		ADCSRA	=	0x84;
	}
	else
	{
		ADCSRA	=	0xA4;
		SFIOR	= 	0x00;
		ADC_SET_ADSC;
	}
	
}
uint8_t ADC_Read_Sync(void)
{
	uint8_t tmp;
	tmp = 0;

	ADC_SET_ADSC;
	while(ADCSRA & 0x40);	//wait
	tmp = ADCH;


	return tmp;
}


uint8_t ADC_Read_Async(void)
{
	return ADCH;
}