int16_t ref, degrees_x10; float kelvin_per_adc_x10; ADCA.CTRLA = ADC_FLUSH_bm; // cancel any pending conversions, disable ADC // set up exactly how Atmel did when they measured the calibration value ADCA.CTRLB = ADC_RESOLUTION_12BIT_gc; // unsigned conversion, produces result in range 0-2048 ADCA.REFCTRL = ADC_REFSEL_INT1V_gc | ADC_TEMPREF_bm; ADCA.PRESCALER = ADC_PRESCALER_DIV512_gc; ADCA.CH0.CTRL = ADC_CH_INPUTMODE_INTERNAL_gc | ADC_CH_GAIN_1X_gc; ADCA.CH0.MUXCTRL = ADC_CH_MUXINT_TEMP_gc; […]
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