56 lines
881 B
C
56 lines
881 B
C
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/*
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* adc.h
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*
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* Created on: 08.02.2019
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* Author: julian
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*/
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#ifndef ADC_H_
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#define ADC_H_
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#include <stdint.h>
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typedef uint16_t adc_sample_t;
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typedef struct {
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adc_sample_t * ptr;
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uint8_t size;
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} adc_buffer_t;
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typedef void (*adc_interrupt_t)(volatile adc_buffer_t * buf);
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typedef struct adc {
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adc_buffer_t buffer;
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uint8_t current_channel;
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adc_sample_t * current_sample;
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uint8_t channel_mask;
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adc_interrupt_t interrupt;
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} adc_t;
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// the adc instance
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extern volatile adc_t adc;
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enum {
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ADC_CHANNEL_0 = 0x01,
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ADC_CHANNEL_1 = 0x02,
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ADC_CHANNEL_2 = 0x04,
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ADC_CHANNEL_3 = 0x08,
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ADC_CHANNEL_4 = 0x10,
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ADC_CHANNEL_5 = 0x20,
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ADC_CHANNEL_6 = 0x40,
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ADC_CHANNEL_7 = 0x80,
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ADC_CHANNEL_ALL = 0xFF,
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};
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void adc_init(adc_buffer_t buffer, uint8_t channel_mask);
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void adc_on_done(adc_interrupt_t interrupt);
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void adc_start();
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void adc_stop();
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#endif /* ADC_H_ */
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