Sasapea's Lab

main()関数が未定義の場合はArduinoのようにsetup()/loop()関数が呼び出され、処理待ちのときにライブラリ(ADC/RTC/TWI/USART)内から呼び出されるavr8_yield()関数をサポートするライブラリ。

avr8_yield()はmain.cppなどにavr8_yield()を定義したときにだけ呼び出される。

【サンプルコード (Microchip Studio)】

#include "avr8_xxxx.h"

void avr8_yield(void)
{
  /* 処理待ちのときライブラリ内から呼び出される */
}

int main(void)
{
  sysinit(); /* avr8_main.cpp: Set Clock, Begin RTC, Enable Interrupt */

  /* setup() */

  while (1)
  {
    /* loop() */

    yield();
  }
}

#include "avr8_xxxx.h"

void avr8_yield(void)

{

/* 処理待ちのときライブラリ内から呼び出される */

}

int main(void)

{

sysinit(); /* avr8_main.cpp: Set Clock, Begin RTC, Enable Interrupt */

/* setup() */

while (1)

{

/* loop() */

yield();

}

【サンプルコード (Arduino風)】

#include "avr8_xxxx.h"

void avr8_yield(void)
{
  /* 処理待ちのときライブラリ内から呼び出される */
}

void setup(void)
{
  ...
}

void loop(void)
{
  ...
}

#include "avr8_xxxx.h"

void avr8_yield(void)

{

/* 処理待ちのときライブラリ内から呼び出される */

}

void setup(void)

{

...

}

void loop(void)

{

...

}

【ライブラリ】

/*
  avr8_main.h - main routine
 
  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

extern void sysinit(void);
extern void yield(void);

avr8_main.h - main routine

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

extern void sysinit(void);

extern void yield(void);

/*
  avr8_main.cpp - main routine
 
  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_main.h"
#include "avr8_task.h"
#include "avr8_clock.h"
#include "avr8_rtc.h"
#include "avr8_port.h"
#include "avr8_tca.h"
#include "avr8_tcb.h"
#include "avr8_ac.h"
#include "avr8_usart.h"
#include "avr8_zcd.h"

void sysinit(void)
{
#if defined(CONFIG_CLOCK_FRQSEL) && defined(CLKCTRL_FRQSEL_gm)
  Clock::setup(CONFIG_CLOCK_FRQSEL);
#else
  Clock::setup();
#endif
#if CONFIG_RTC_USE && !((CONFIG_TASK_USE || CONFIG_ALARM_USE) && (CONFIG_ALARM_TIMER == TIMER_RTC))
  Rtc::begin();
  Rtc::run();
#endif
#if CONFIG_TASK_USE
  Task::begin();
#elif CONFIG_ALARM_USE
  AlarmTimer.begin();
#endif
  sei();
}

void avr8_yield(void) __attribute__((weak));
void avr8_yield(void)
{
}

static void yield0(void)
{
  avr8_yield();
#if CONFIG_PORT_POLL && !CONFIG_PORT_ISR
  Port::poll();
#endif
#if CONFIG_TCA_POLL && !CONFIG_TCA_ISR
  TcaBase::poll();
#endif
#if CONFIG_TCB_POLL && !CONFIG_TCB_ISR
  Tcb::poll();
#endif
#if CONFIG_AC_POLL && !CONFIG_AC_ISR
  Ac::poll();
#endif
#if CONFIG_USART_POLL && !CONFIG_USART_ISR
  Usart::poll();
#endif
#if CONFIG_ZCD_POLL && !CONFIG_ZCD_ISR
  Zcd::poll();
#endif
#if CONFIG_TASK_USE
  Task::yield();
#elif CONFIG_ALARM_USE
  AlarmTimer.poll();
#endif
}

void yield(void)
{
  yield0();
}

void setup(void) __attribute__((weak));
void setup(void)
{
}

void loop(void) __attribute__((weak));
void loop(void)
{
}

int main(void) __attribute__((weak));
int main(void)
{
  sysinit();
  setup();
  while (1)
  {
    loop();
    yield0();
  }
  return 0;
}

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avr8_main.cpp - main routine

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_main.h"

#include "avr8_task.h"

#include "avr8_clock.h"

#include "avr8_rtc.h"

#include "avr8_port.h"

#include "avr8_tca.h"

#include "avr8_tcb.h"

#include "avr8_ac.h"

#include "avr8_usart.h"

#include "avr8_zcd.h"

void sysinit(void)

{

#if defined(CONFIG_CLOCK_FRQSEL) && defined(CLKCTRL_FRQSEL_gm)

Clock::setup(CONFIG_CLOCK_FRQSEL);

#else

Clock::setup();

#endif

#if CONFIG_RTC_USE && !((CONFIG_TASK_USE || CONFIG_ALARM_USE) && (CONFIG_ALARM_TIMER == TIMER_RTC))

Rtc::begin();

Rtc::run();

#endif

#if CONFIG_TASK_USE

Task::begin();

#elif CONFIG_ALARM_USE

AlarmTimer.begin();

#endif

sei();

}

void avr8_yield(void) __attribute__((weak));

void avr8_yield(void)

{

}

static void yield0(void)

{

avr8_yield();

#if CONFIG_PORT_POLL && !CONFIG_PORT_ISR

Port::poll();

#endif

#if CONFIG_TCA_POLL && !CONFIG_TCA_ISR

TcaBase::poll();

#endif

#if CONFIG_TCB_POLL && !CONFIG_TCB_ISR

Tcb::poll();

#endif

#if CONFIG_AC_POLL && !CONFIG_AC_ISR

Ac::poll();

#endif

#if CONFIG_USART_POLL && !CONFIG_USART_ISR

Usart::poll();

#endif

#if CONFIG_ZCD_POLL && !CONFIG_ZCD_ISR

Zcd::poll();

#endif

#if CONFIG_TASK_USE

Task::yield();

#elif CONFIG_ALARM_USE

AlarmTimer.poll();

#endif

}

void yield(void)

{

yield0();

}

void setup(void) __attribute__((weak));

void setup(void)

{

}

void loop(void) __attribute__((weak));

void loop(void)

{

}

int main(void) __attribute__((weak));

int main(void)

{

sysinit();

setup();

while (1)

{

loop();

yield0();

}

return 0;

}

投稿

Microchip AVR8 用のライブラリを自作する。(MAIN)