set_reference.c

来自「Source code for driving RFM01 fm radio r」· C语言 代码 · 共 8 行

#include "../adc.h"

//! configure ADC_ converter voltage reference
void ADC_set_reference(unsigned char ref)
{
	ADMUX = (ADMUX & ~ADC_REFERENCE_MASK) | (ref<<6);
}