Sam.h

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/*
Copyright (C) 2020 Bengt Martensson.
 
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or (at
your option) any later version.
 
This program is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
 
You should have received a copy of the GNU General Public License along with
this program. If not, see http://www.gnu.org/licenses/.
 */
 
#pragma once
 
#include "InfraredTypes.h"
 
#define CURRENT_CLASS Sam
 
#define HAS_FLASH_READ      1
#define HAS_HARDWARE_PWM    1
#define HAS_SAMPLING        1
#define HAS_INPUT_CAPTURE   0
 
#define STRCPY_PF_CAST(x) static_cast<const char *>(x)
 
//  Default PWM pin
#define PWM_PIN 3
 
#ifdef ISR
#undef ISR
#endif
#define ISR(f)  void interruptServiceRoutine()
 
class Sam : public Board {
public:
 
    Sam() {
    };
 
private:
    pin_t pwmPin;
    static constexpr bool invert = false;
    uint16_t maxValue;
    uint16_t onLength;
    bool timerTCC0;
    bool timerTCC1;
    bool timerTCC2;
    Tcc* TCCx;
 
    void timerConfigNormal();
 
    void timerEnableIntr();
 
    void timerDisableIntr();
 
    void timerConfigHz(frequency_t hz __attribute__ ((unused)), dutycycle_t dutyCycle __attribute__ ((unused))) {
        timerConfigHz(PWM_PIN, hz, dutyCycle);
    };
 
    void timerConfigHz(pin_t pin, frequency_t hz, dutycycle_t dutyCycle);
 
    void timerEnablePwm() {
        setValue(onLength);
    };
 
    void timerDisablePwm() {
        setValue(0U);
    }
 
    static const unsigned int TIMER_PRESCALER_DIV = 64U;
 
    void setTimerFrequency(frequency_t hz);
 
    void setValue(uint16_t value);
};