30 lines
849 B
C
30 lines
849 B
C
#include "voltage.h"
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void sensor_init(void) {
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/* Disable digital input buffer */
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}
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void ADC0_init(void) {
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PORTD.PIN6CTRL &= ~PORT_ISC_gm;
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PORTD.PIN6CTRL |= PORT_ISC_INPUT_DISABLE_gc;
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PORTD.PIN6CTRL &= PORT_PULLUPEN_bm;
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ADC0.CTRLC = ADC_PRESC_DIV4_gc;
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VREF.ADC0REF = VREF_REFSEL_VDD_gc; /* Internal reference */
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ADC0.CTRLA = ADC_ENABLE_bm /* ADC Enable: enabled */
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| ADC_RESSEL_10BIT_gc; /* 10-bit mode */
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/* Select ADC channel */
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ADC0.MUXPOS = ADC_MUXPOS_AIN6_gc;
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}
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uint16_t ADC0_read(void) {
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/* Start ADC conversion */
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ADC0.COMMAND = ADC_STCONV_bm;
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/* Wait until ADC conversion done */
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while (!(ADC0.INTFLAGS & ADC_RESRDY_bm)) {
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;
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}
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/* Clear the interrupt flag by writing 1: */
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ADC0.INTFLAGS = ADC_RESRDY_bm;
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return ADC0.RES;
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}
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