45 lines
1.0 KiB
C
45 lines
1.0 KiB
C
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#pragma once
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#include <stdint.h>
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#include <stdbool.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef struct FSKDemod FSKDemod;
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/**
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* @brief Allocate a new FSKDemod instance
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* FSKDemod is a demodulator that can decode FSK encoded data
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*
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* @param low_time time between rising edges for the 0 bit
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* @param low_pulses rising edges count for the 0 bit
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* @param hi_time time between rising edges for the 1 bit
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* @param hi_pulses rising edges count for the 1 bit
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* @return FSKDemod*
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*/
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FSKDemod*
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fsk_demod_alloc(uint32_t low_time, uint32_t low_pulses, uint32_t hi_time, uint32_t hi_pulses);
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/**
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* @brief Free a FSKDemod instance
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*
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* @param fsk_demod
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*/
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void fsk_demod_free(FSKDemod* fsk_demod);
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/**
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* @brief Feed sample to demodulator
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*
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* @param demod FSKDemod instance
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* @param polarity sample polarity
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* @param time sample time
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* @param value demodulated bit value
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* @param count demodulated bit count
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*/
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void fsk_demod_feed(FSKDemod* demod, bool polarity, uint32_t time, bool* value, uint32_t* count);
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#ifdef __cplusplus
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}
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#endif
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