fb80f9537f
* Rfid: fixed HID emulation by adding zero pulse every 4 bits * Rfid: HID emulation fixed with DSP based FSK oscillator.
30 lines
743 B
C++
30 lines
743 B
C++
#pragma once
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#include <stdint.h>
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/**
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* This code tries to fit the periods into a given number of cycles (phases) by taking cycles from the next cycle of periods.
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*/
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class OscFSK {
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public:
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/**
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* Get next period
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* @param bit bit value
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* @param period return period
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* @return bool whether to advance to the next bit
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*/
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bool next(bool bit, uint16_t* period);
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/**
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* FSK ocillator constructor
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*
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* @param freq_low bit 0 freq
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* @param freq_hi bit 1 freq
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* @param osc_phase_max max oscillator phase
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*/
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OscFSK(uint16_t freq_low, uint16_t freq_hi, uint16_t osc_phase_max);
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private:
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const uint16_t freq[2];
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const uint16_t osc_phase_max;
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int32_t osc_phase_current;
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}; |