30 lines
561 B
C
30 lines
561 B
C
#include "VREF.h"
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uint8_t adcReference = CONFIG_ADC_REF;
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uint8_t dacReference = CONFIG_DAC_REF;
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void VREF_init(void) {
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// Enable output for OC2A and OC2B (PD7 and PD6)
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VREF_DDR |= _BV(7) | _BV(6);
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TCCR2A = _BV(WGM20) |
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_BV(WGM21) |
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_BV(COM2A1)|
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_BV(COM2B1);
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TCCR2B = _BV(CS20);
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OCR2A = adcReference;
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OCR2B = dacReference;
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}
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void vref_setADC(uint8_t value) {
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adcReference = value;
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OCR2A = adcReference;
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}
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void vref_setDAC(uint8_t value) {
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dacReference = value;
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OCR2B = dacReference;
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} |