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33 lines
624 B
33 lines
624 B
8 years ago
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#pragma once
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//
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// Utilities for build-in A/D converter
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//
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#include <stdint.h>
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enum ADC_Prescaller {
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ADC_PRESC_2 = 1,
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ADC_PRESC_4 = 2,
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ADC_PRESC_8 = 3,
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ADC_PRESC_16 = 4,
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ADC_PRESC_32 = 5,
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ADC_PRESC_64 = 6,
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ADC_PRESC_128 = 7,
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};
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/** Initialize the ADC and enable it */
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void adc_init(enum ADC_Prescaller presc);
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/** Disable ADC (for power saving) */
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void adc_disable(void);
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/** Enable (already initialized) ADC */
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void adc_enable(void);
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/** Sample analog pin with 8-bit precision */
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uint8_t adc_read_byte(uint8_t channel);
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/** Sample analog pin with 10-bit precision */
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uint16_t adc_read_word(uint8_t channel);
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