adcont.c

来自「aduc7026裸机程序」· C语言 代码 · 共 27 行

#include "main.h"

void ADCInit()
{
	unsigned int tmpc = 5000;
	ADCCON = 0x23;	
	while(tmpc-- > 0);

	ADCCP  = 0x00;
	REFCON = 0x01;
}

unsigned int ADCData()
{
	unsigned int val = 0;
	ADCCON 	= 0x00A3;
	while(!(ADCSTA & 0x01));
	ADCCON	= 0x0020;
	val 	= ADCDAT >> 16;
	return val;
}

unsigned int ADCChannel(unsigned char ch)
{
	ADCCP = (ch & 0x1F);
	return ADCData();
}