2025年11月 – ページ 6

Last Updated on 2026-02-09 by researcher

ＺＣＤライブラリ。これもシンプルなので説明の必要がないかな。

【サンプルコード】

#include "avr8_zcd.h"

Zcd zcd0(ZCD0);

void func(Zcd::STATUS status)
{
  if (status & Zcd::STATUS_CROSSIF)
  {
    /* cross */;
  }
}

int main(void)
{
  zcd0.begin();
  zcd0.callback(func);
  zcd0.intctrl(Zcd::INTMODE_BOTH);
  while (1)
    Zcd::poll();

  return 0;
}

#include "avr8_zcd.h"

Zcd zcd0(ZCD0);

void func(Zcd::STATUS status)

{

if (status & Zcd::STATUS_CROSSIF)

{

/* cross */;

}

int main(void)

{

zcd0.begin();

zcd0.callback(func);

zcd0.intctrl(Zcd::INTMODE_BOTH);

while (1)

Zcd::poll();

return 0;

}

【ライブラリ】

/*
  avr8_zcd.h - ZCD Driver for Microchip AVR8 Series
 
  Copyright (c) 2025 Sasapea's Lab. All right reserved.
 
  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 <https://www.gnu.org/licenses/>.
*/
#pragma once

#include "avr8_config.h"

#if   defined(ZCD3)
#define ZCD_MAX_CH 4
#elif defined(ZCD2)
#define ZCD_MAX_CH 3
#elif defined(ZCD1)
#define ZCD_MAX_CH 2
#elif defined(ZCD0)
#define ZCD_MAX_CH 1
#else
#define ZCD_MAX_CH 0
#endif

#if ZCD_MAX_CH

class Zcd
{
  public:

    /* Interrupt Mode select */
    typedef enum
    {
      INTMODE_NONE    = ZCD_INTMODE_NONE_gc,     /* No interrupt */
      INTMODE_RISING  = ZCD_INTMODE_RISING_gc,   /* Interrupt on rising input signal */
      INTMODE_FALLING = ZCD_INTMODE_FALLING_gc,  /* Interrupt on falling input signal */
      INTMODE_BOTH    = ZCD_INTMODE_BOTH_gc,     /* Interrupt on both rising and falling input signal */
    } INTMODE;

    /* ZCD.STATUS  bit masks and bit positions */
    typedef enum
    {
      STATUS_CROSSIF = ZCD_CROSSIF_bm,  /* ZCD Interrupt Flag bit mask. */
      STATUS_STATE   = ZCD_STATE_bm,    /* ZCD State bit mask. */
    } STATUS;

    /* ZCD State select */
    typedef enum
    {
      STATE_LOW  = ZCD_STATE_LOW_gc,   /* Output is 0 */
      STATE_HIGH = ZCD_STATE_HIGH_gc,  /* Output is 1 */
    } STATE;

    typedef void (*callback_t)(STATUS status);

#if defined(ZCD0)
    Zcd(ZCD_t& zcd) : _zcd(&zcd), _ch((&zcd - &ZCD0) / sizeof(zcd) + 0), _callback(0)
#elif defined(ZCD1)
    Zcd(ZCD_t& zcd) : _zcd(&zcd), _ch((&zcd - &ZCD1) / sizeof(zcd) + 1), _callback(0)
#elif defined(ZCD2)
    Zcd(ZCD_t& zcd) : _zcd(&zcd), _ch((&zcd - &ZCD2) / sizeof(zcd) + 2), _callback(0)
#elif defined(ZCD3)
    Zcd(ZCD_t& zcd) : _zcd(&zcd), _ch((&zcd - &ZCD3) / sizeof(zcd) + 3), _callback(0)
#endif
    {
      _instances[_ch] = this;
    }

    /* virtual */ ~Zcd(void)
    {
      end();
      _instances[_ch] = 0;
    }

    void begin(bool invert = false)
    {
      end();
      _zcd->CTRLA = (invert ? ZCD_INVERT_bm : 0) | ZCD_ENABLE_bm;
    }

    void end(void)
    {
      _zcd->CTRLA = 0;
    }

    void runstdby(bool enable = true)
    {
      _zcd->CTRLA = (_zcd->CTRLA & ~ZCD_RUNSTDBY_bm) | (enable ? ZCD_RUNSTDBY_bm : 0);
    }

    void output(bool enable = true)
    {
      _zcd->CTRLA = (_zcd->CTRLA & ~ZCD_OUTEN_bm) | (enable ? ZCD_OUTEN_bm : 0);
    }

    void callback(callback_t func)
    {
      _callback = func;
    }      

    void intctrl(INTMODE mode)
    {
      _zcd->STATUS  = _zcd->STATUS;
#if CONFIG_ZCD_ISR
      _zcd->INTCTRL = mode;
#endif
    }

    STATUS status(void)
    {
      return (STATUS)_zcd->STATUS;
    }

    static void poll(void)
    {
#if !CONFIG_ZCD_ISR
      for (uint8_t i = 0; i < ZCD_MAX_CH; ++i)
      {
        Zcd* zcd = _instances[i];
        if (zcd)
          zcd->isr();
      }
#endif      
    }

  protected:

    static Zcd* _instances[ZCD_MAX_CH];

    ZCD_t*     _zcd;
    uint8_t    _ch;  
    callback_t _callback;

#if CONFIG_ZCD_ISR
    friend void zcd_isr(uint8_t ch);
#endif

    void isr(void)
    {
      uint8_t flags = _zcd->STATUS = _zcd->STATUS;
      if (_callback)
        _callback((STATUS)flags);
    }
};

#endif

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

120

121

122

123

124

125

126

127

128

129

130

131

132

133

134

135

136

137

138

139

140

141

142

143

144

145

146

147

148

149

150

151

152

153

154

155

156

avr8_zcd.h - ZCD Driver for Microchip AVR8 Series

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 <https://www.gnu.org/licenses/>.

#pragma once

#include "avr8_config.h"

#if defined(ZCD3)

#define ZCD_MAX_CH 4

#elif defined(ZCD2)

#define ZCD_MAX_CH 3

#elif defined(ZCD1)

#define ZCD_MAX_CH 2

#elif defined(ZCD0)

#define ZCD_MAX_CH 1

#else

#define ZCD_MAX_CH 0

#endif

#if ZCD_MAX_CH

class Zcd

{

public:

/* Interrupt Mode select */

typedef enum

{

INTMODE_NONE = ZCD_INTMODE_NONE_gc, /* No interrupt */

INTMODE_RISING = ZCD_INTMODE_RISING_gc, /* Interrupt on rising input signal */

INTMODE_FALLING = ZCD_INTMODE_FALLING_gc, /* Interrupt on falling input signal */

INTMODE_BOTH = ZCD_INTMODE_BOTH_gc, /* Interrupt on both rising and falling input signal */

} INTMODE;

/* ZCD.STATUS bit masks and bit positions */

typedef enum

{

STATUS_CROSSIF = ZCD_CROSSIF_bm, /* ZCD Interrupt Flag bit mask. */

STATUS_STATE = ZCD_STATE_bm, /* ZCD State bit mask. */

} STATUS;

/* ZCD State select */

typedef enum

{

STATE_LOW = ZCD_STATE_LOW_gc, /* Output is 0 */

STATE_HIGH = ZCD_STATE_HIGH_gc, /* Output is 1 */

} STATE;

typedef void (*callback_t)(STATUS status);

#if defined(ZCD0)

Zcd(ZCD_t& zcd) : _zcd(&zcd), _ch((&zcd - &ZCD0) / sizeof(zcd) + 0), _callback(0)

#elif defined(ZCD1)

Zcd(ZCD_t& zcd) : _zcd(&zcd), _ch((&zcd - &ZCD1) / sizeof(zcd) + 1), _callback(0)

#elif defined(ZCD2)

Zcd(ZCD_t& zcd) : _zcd(&zcd), _ch((&zcd - &ZCD2) / sizeof(zcd) + 2), _callback(0)

#elif defined(ZCD3)

Zcd(ZCD_t& zcd) : _zcd(&zcd), _ch((&zcd - &ZCD3) / sizeof(zcd) + 3), _callback(0)

#endif

{

_instances[_ch] = this;

}

/* virtual */ ~Zcd(void)

{

end();

_instances[_ch] = 0;

}

void begin(bool invert = false)

{

end();

_zcd->CTRLA = (invert ? ZCD_INVERT_bm : 0) | ZCD_ENABLE_bm;

}

void end(void)

{

_zcd->CTRLA = 0;

}

void runstdby(bool enable = true)

{

_zcd->CTRLA = (_zcd->CTRLA & ~ZCD_RUNSTDBY_bm) | (enable ? ZCD_RUNSTDBY_bm : 0);

}

void output(bool enable = true)

{

_zcd->CTRLA = (_zcd->CTRLA & ~ZCD_OUTEN_bm) | (enable ? ZCD_OUTEN_bm : 0);

}

void callback(callback_t func)

{

_callback = func;

}

void intctrl(INTMODE mode)

{

_zcd->STATUS = _zcd->STATUS;

#if CONFIG_ZCD_ISR

_zcd->INTCTRL = mode;

#endif

}

STATUS status(void)

{

return (STATUS)_zcd->STATUS;

}

static void poll(void)

{

#if !CONFIG_ZCD_ISR

for (uint8_t i = 0; i < ZCD_MAX_CH; ++i)

{

Zcd* zcd = _instances[i];

if (zcd)

zcd->isr();

}

#endif

}

protected:

static Zcd* _instances[ZCD_MAX_CH];

ZCD_t* _zcd;

uint8_t _ch;

callback_t _callback;

#if CONFIG_ZCD_ISR

friend void zcd_isr(uint8_t ch);

#endif

void isr(void)

{

uint8_t flags = _zcd->STATUS = _zcd->STATUS;

if (_callback)

_callback((STATUS)flags);

}

};

#endif

/*
  avr8_zcd.cpp - ZCD Driver for Microchip AVR8 Series
 
  Copyright (c) 2025 Sasapea's Lab. All right reserved.
 
  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 <https://www.gnu.org/licenses/>.
*/
#include "avr8_zcd.h"

#if ZCD_MAX_CH

Zcd* Zcd::_instances[];

#if CONFIG_ZCD_ISR

inline void zcd_isr(uint8_t ch)
{
  Zcd::_instances[ch]->isr();
}

#if defined(ZCD0_ZCD_vect)
ISR(ZCD0_ZCD_vect)
{
  zcd_isr(0);
}
#endif

#if defined(ZCD1_ZCD_vect)
ISR(ZCD1_ZCD_vect)
{
  zcd_isr(1);
}
#endif

#if defined(ZCD2_ZCD_vect)
ISR(ZCD2_ZCD_vect)
{
  zcd_isr(2);
}
#endif

#if defined(ZCD3_ZCD_vect)
ISR(ZCD3_ZCD_vect)
{
  zcd_isr(3);
}
#endif

#endif

#endif

avr8_zcd.cpp - ZCD Driver for Microchip AVR8 Series

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 <https://www.gnu.org/licenses/>.

#include "avr8_zcd.h"

#if ZCD_MAX_CH

Zcd* Zcd::_instances[];

#if CONFIG_ZCD_ISR

inline void zcd_isr(uint8_t ch)

{

Zcd::_instances[ch]->isr();

}

#if defined(ZCD0_ZCD_vect)

ISR(ZCD0_ZCD_vect)

{

zcd_isr(0);

}

#endif

#if defined(ZCD1_ZCD_vect)

ISR(ZCD1_ZCD_vect)

{

zcd_isr(1);

}

#endif

#if defined(ZCD2_ZCD_vect)

ISR(ZCD2_ZCD_vect)

{

zcd_isr(2);

}

#endif

#if defined(ZCD3_ZCD_vect)

ISR(ZCD3_ZCD_vect)

{

zcd_isr(3);

}

#endif

月: 2025年11月

Microchip AVR8 用のライブラリを自作する。(ZCD)