mirror of
https://github.com/DarkFlippers/unleashed-firmware.git
synced 2025-12-13 05:06:30 +04:00
61 lines
1.1 KiB
C
61 lines
1.1 KiB
C
#pragma once
|
|
#include <stdint.h>
|
|
#include <stdbool.h>
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
typedef struct FSKOsc FSKOsc;
|
|
|
|
/**
|
|
* @brief Allocate a new FSKOsc instance
|
|
* FSKOsc is a oscillator that can provide FSK encoding
|
|
*
|
|
* @param freq_low
|
|
* @param freq_hi
|
|
* @param osc_phase_max
|
|
* @return FSKOsc*
|
|
*/
|
|
FSKOsc* fsk_osc_alloc(uint32_t freq_low, uint32_t freq_hi, uint32_t osc_phase_max);
|
|
|
|
/**
|
|
* @brief Free a FSKOsc instance
|
|
*
|
|
* @param osc
|
|
*/
|
|
void fsk_osc_free(FSKOsc* osc);
|
|
|
|
/**
|
|
* @brief Reset ocillator
|
|
*
|
|
* @param osc
|
|
*/
|
|
void fsk_osc_reset(FSKOsc* osc);
|
|
|
|
/**
|
|
* @brief Get next duration sample from oscillator
|
|
*
|
|
* @param osc
|
|
* @param bit
|
|
* @param period
|
|
* @return bool
|
|
*/
|
|
bool fsk_osc_next(FSKOsc* osc, bool bit, uint32_t* period);
|
|
|
|
/**
|
|
* @brief Get next half of sample from oscillator
|
|
* Useful when encoding high and low levels separately.
|
|
*
|
|
* @param osc
|
|
* @param bit
|
|
* @param level
|
|
* @param duration
|
|
* @return bool
|
|
*/
|
|
bool fsk_osc_next_half(FSKOsc* osc, bool bit, bool* level, uint32_t* duration);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|