mirror of
https://github.com/RobTillaart/Arduino.git
synced 2024-09-19 16:46:11 -04:00
86 lines
1.7 KiB
C++
86 lines
1.7 KiB
C++
#pragma once
|
|
//
|
|
// FILE: functionGenerator.h
|
|
// AUTHOR: Rob Tillaart
|
|
// VERSION: 0.2.6
|
|
// PURPOSE: wave form generating functions (use with care)
|
|
// URL: https://github.com/RobTillaart/FunctionGenerator
|
|
|
|
|
|
#include "Arduino.h"
|
|
|
|
#define FUNCTIONGENERATOR_LIB_VERSION (F("0.2.6"))
|
|
|
|
|
|
class funcgen
|
|
{
|
|
public:
|
|
funcgen(float period = 1.0, float amplitude = 1.0, float phase = 0.0, float yShift = 0.0);
|
|
|
|
|
|
/////////////////////////////////////////////////////////////
|
|
//
|
|
// CONFIGURATION
|
|
//
|
|
void setPeriod(float period = 1.0);
|
|
float getPeriod();
|
|
|
|
void setFrequency(float freq = 1.0);
|
|
float getFrequency();
|
|
|
|
void setAmplitude(float ampl = 1.0);
|
|
float getAmplitude();
|
|
|
|
void setPhase(float phase = 0.0);
|
|
float getPhase();
|
|
|
|
void setYShift(float yShift = 0.0);
|
|
float getYShift();
|
|
|
|
void setDutyCycle(float dutyCycle);
|
|
float getDutyCycle();
|
|
|
|
void setRandomSeed(uint32_t a, uint32_t b = 314159265);
|
|
|
|
|
|
/////////////////////////////////////////////////////////////
|
|
//
|
|
// FUNCTIONS
|
|
//
|
|
// constant amplitude
|
|
float line();
|
|
// constant zero for calibration.
|
|
float zero();
|
|
|
|
// standard wave forms
|
|
float sawtooth(float t, uint8_t mode = 0); // 0 ==> /|. 1 ==> sawtooth |\.
|
|
float triangle(float t);
|
|
float square(float t);
|
|
float sinus(float t);
|
|
float stair(float t, uint16_t steps = 8, uint8_t mode = 0);
|
|
|
|
float random();
|
|
float random_DC(); // duty cycle variant. Experimental.
|
|
|
|
|
|
private:
|
|
float _period;
|
|
float _freq0;
|
|
float _freq1;
|
|
float _freq2;
|
|
float _freq4;
|
|
float _amplitude;
|
|
float _phase;
|
|
float _yShift;
|
|
float _dutyCycle;
|
|
|
|
// Marsaglia 'constants'
|
|
uint32_t _m_w = 1;
|
|
uint32_t _m_z = 2;
|
|
uint32_t _random();
|
|
};
|
|
|
|
|
|
// -- END OF FILE --
|
|
|