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65 lines
1.5 KiB
C++
65 lines
1.5 KiB
C++
#pragma once
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//
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// FILE: functionGenerator.h
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// AUTHOR: Rob Tillaart
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// VERSION: 0.2.2
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// PURPOSE: wave form generating functions (use with care)
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// URL: https://github.com/RobTillaart/FunctionGenerator
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//
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#include "Arduino.h"
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#define FUNCTIONGENERATOR_LIB_VERSION (F("0.2.2"))
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class funcgen
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{
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public:
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funcgen(float period = 1.0, float amplitude = 1.0, float phase = 0.0, float yShift = 0.0);
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// configuration
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void setPeriod(float period = 1.0);
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float getPeriod() { return _period; };
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void setFrequency(float freq = 1.0) { setPeriod(1/freq); };
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float getFrequency() { return _freq1; };
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void setAmplitude(float ampl = 1.0) { _amplitude = ampl; };
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float getAmplitude() { return _amplitude; };
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void setPhase(float phase = 0.0) { _phase = phase; };
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float getPhase() { return _phase; };
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void setYShift(float yShift = 0.0) { _yShift = yShift; };
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float getYShift() { return _yShift; };
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// constant amplitude
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float line();
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// constant zero for calibration
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float zero();
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// standard wave forms
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float sawtooth(float t, uint8_t mode = 0);
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float triangle(float t);
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float square(float t);
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float sinus(float t);
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float stair(float t, uint16_t steps = 8, uint8_t mode = 0);
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float random();
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private:
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float _period;
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float _freq0;
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float _freq1;
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float _freq2;
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float _freq4;
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float _amplitude;
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float _phase;
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float _yShift;
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// Marsaglia 'constants'
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uint32_t _m_w = 1;
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uint32_t _m_z = 2;
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uint32_t _random();
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};
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// -- END OF FILE --
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