unleashed-firmware/applications/lfrfid/helpers/osc_fsk.h
あく 389ff92cc1
Naming and coding style convention, new linter tool. (#945)
* Makefile, Scripts: new linter
* About: remove ID from IC
* Firmware: remove double define for DIVC/DIVR
* Scripts: check folder names too. Docker: replace syntax check with make lint.
* Reformat Sources and Migrate to new file naming convention
* Docker: symlink clang-format-12 to clang-format
* Add coding style guide
2022-01-05 19:10:18 +03:00

30 lines
743 B
C++

#pragma once
#include <stdint.h>
/**
* This code tries to fit the periods into a given number of cycles (phases) by taking cycles from the next cycle of periods.
*/
class OscFSK {
public:
/**
* Get next period
* @param bit bit value
* @param period return period
* @return bool whether to advance to the next bit
*/
bool next(bool bit, uint16_t* period);
/**
* FSK ocillator constructor
*
* @param freq_low bit 0 freq
* @param freq_hi bit 1 freq
* @param osc_phase_max max oscillator phase
*/
OscFSK(uint16_t freq_low, uint16_t freq_hi, uint16_t osc_phase_max);
private:
const uint16_t freq[2];
const uint16_t osc_phase_max;
int32_t osc_phase_current;
};