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82 lines
2.0 KiB
C++
82 lines
2.0 KiB
C++
#pragma once
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//
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// FILE: PulsePattern.h
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// AUTHOR: Rob Tillaart
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// VERSION: 0.1.7
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// DATE: 2012-11-23
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// PURPOSE: Arduino Library to generate repeating pulse patterns
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// sends a pulse pattern to a digital pin (continuously)
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// HISTORY: See PulsePattern.cpp
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//
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#if !defined(__AVR__)
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#error "Only support for AVR boards"
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#endif
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#include "Arduino.h"
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#define PULSEPATTERN_LIB_VERSION (F("0.1.7"))
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// RUNNING STATES
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#define NOTINIT -1
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#define STOPPED 0
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#define RUNNING 1
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// PRESCALER CONSTANTS
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#define NO_CLOCK 0 // timer off
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#define PRESCALE_1 1
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#define PRESCALE_8 2
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#define PRESCALE_64 3
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#define PRESCALE_256 4
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#define PRESCALE_1024 5
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#define EXT_T1_FALLING 6 // external clock
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#define EXT_T2_RISING 7 // external clock
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// RUNNING MODE
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#define PP_ONCE 1
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#define PP_CONTINUOUS 0xFFFFFFFF
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class PulsePattern
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{
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public:
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PulsePattern();
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void init(const uint8_t pin,
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const uint16_t * ar, const uint8_t size,
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const uint8_t level, const uint8_t prescaler);
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void setFactor(float perc) { _factor = round(4096 * (1 + perc)); };
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float getFactor() { return _factor / 4096.0 - 1; };
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void start(uint32_t times = PP_CONTINUOUS);
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void cont();
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void stop();
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bool isRunning() const { return _state == RUNNING; };
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void worker();
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private:
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void stopTimer();
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void setTimer(const uint16_t cc) const;
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uint32_t _factor = 4096;
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uint16_t * _ar;
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uint8_t _size;
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uint8_t _pin;
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uint8_t _pinbit;
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volatile uint8_t * _pinout;
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uint8_t _prescaler;
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volatile uint8_t _level;
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volatile int8_t _state;
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volatile uint8_t _cnt;
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uint32_t _times = PP_CONTINUOUS;
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};
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extern PulsePattern PPGenerator;
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// -- END OF FILE --
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