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29 lines
684 B
29 lines
684 B
6 years ago
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// Rotary knob implementation - Version 2.
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// Uses 2 digital pins - D2 (via interrupt) & D6.
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// #include "rev1.h"
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#include <avr/io.h>
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#include <avr/interrupt.h>
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#include <stdbool.h>
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#ifndef ENCODER_PIN_1
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#define ENCODER_PIN_1 PD2
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#endif
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#ifndef ENCODER_PIN_2
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#define ENCODER_PIN_2 PD6
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#endif
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#ifndef ENCODER_INT
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#define ENCODER_INT INT2_vect
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#endif
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typedef struct knob_report_t {
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int8_t dir; // Contains number of rotations that happened
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int8_t phase; // Contains 0 if last rotation happened on 90 degrees, 1 if on 270
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} knob_report_t;
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void knob_init(void);
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knob_report_t knob_report_read(void);
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void knob_report_reset(void);
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bool knob_prev_a;
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int8_t knob_dir;
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