Node / markqvist / OpenModem.git / files / hardware / VREF.c

Displaying Raw • Download

#include "VREF.h"

uint8_t adcReference = CONFIG_ADC_REF;

uint8_t dacReference = CONFIG_DAC_REF;

void VREF_init(void) {

// Enable output for OC2A and OC2B (PD7 and PD6)

DDRD |= _BV(7) | _BV(6);

TCCR2A = _BV(WGM20) |

_BV(WGM21) |

_BV(COM2A1)|

_BV(COM2B1);

TCCR2B = _BV(CS20);

OCR2A = adcReference;

OCR2B = dacReference;

}

void vref_setADC(uint8_t value) {

adcReference = value;

OCR2A = adcReference;

}

void vref_setDAC(uint8_t value) {

dacReference = value;

OCR2B = dacReference;

}