Microchip AVR8 用のライブラリを自作する。(RESET)

リセット情報の取得とソフトウェアリセットを実行できるライブラリ。

【ライブラリ】

/*
  avr8_reset.h - Reset Control 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(RSTCTRL_SWRE_bm)
  #define RSTCTRL_SWRST_bm RSTCTRL_SWRE_bm
#endif

class Reset
{
  public:

    /* RSTCTRL.RSTFR  bit masks and bit positions */
    typedef enum
    {
      STATUS_PORF   = RSTCTRL_PORF_bm,   /* Power on Reset flag bit mask. */
      STATUS_BORF   = RSTCTRL_BORF_bm,   /* Brown out detector Reset flag bit mask. */
      STATUS_EXTRF  = RSTCTRL_EXTRF_bm,  /* External Reset flag bit mask. */
      STATUS_WDRF   = RSTCTRL_WDRF_bm,   /* Watch dog Reset flag bit mask. */
      STATUS_SWRF   = RSTCTRL_SWRF_bm,   /* Software Reset flag bit mask. */
      STATUS_UPDIRF = RSTCTRL_UPDIRF_bm, /* UPDI Reset flag bit mask. */
    } STATUS;

    static STATUS status(void)
    {
      return (STATUS)RSTCTRL.RSTFR;
    }

    static void swreset(void)
    {
      RSTCTRL.SWRR = RSTCTRL_SWRST_bm;
    }
};

avr8_reset.h - Reset Control 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(RSTCTRL_SWRE_bm)

#define RSTCTRL_SWRST_bm RSTCTRL_SWRE_bm

#endif

class Reset

{

public:

/* RSTCTRL.RSTFR bit masks and bit positions */

typedef enum

{

STATUS_PORF = RSTCTRL_PORF_bm, /* Power on Reset flag bit mask. */

STATUS_BORF = RSTCTRL_BORF_bm, /* Brown out detector Reset flag bit mask. */

STATUS_EXTRF = RSTCTRL_EXTRF_bm, /* External Reset flag bit mask. */

STATUS_WDRF = RSTCTRL_WDRF_bm, /* Watch dog Reset flag bit mask. */

STATUS_SWRF = RSTCTRL_SWRF_bm, /* Software Reset flag bit mask. */

STATUS_UPDIRF = RSTCTRL_UPDIRF_bm, /* UPDI Reset flag bit mask. */

} STATUS;

static STATUS status(void)

{

return (STATUS)RSTCTRL.RSTFR;

}

static void swreset(void)

{

RSTCTRL.SWRR = RSTCTRL_SWRST_bm;

}

};

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