2022年4月 – ページ 16

ウォッチドッグは起動直後に16,392msのタイムアウト設定で有効になっている。

停止したい時はWATCHDOG_ENABLEDシンボルを未定義にするかstop()を呼び出す必要がある。

但し、有効になっていたとしてもSystemライブラリーのバックグランド処理(yield)でリスタートしているので通常は気にしなくても良いだろう。

【ライブラリ】

SDKそのまんまのラッパー。タイムアウト時間が定義されている点だけは評価できるかも。(-_-;)

/*
  watchdog.h - Watchdog Library for NXP-JN516x

  Copyright (c) 2022 Sasapea's Lab. All right reserved.

  This library is free software; you can redistribute it and/or
  modify it under the terms of the GNU Lesser General Public
  License as published by the Free Software Foundation; either
  version 2.1 of the License, or (at your option) any later version.

  This library 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
  Lesser General Public License for more details.

  You should have received a copy of the GNU Lesser General
  Public License along with this library; if not, write to the
  Free Software Foundation, Inc., 59 Temple Place, Suite 330,
  Boston, MA  02111-1307  USA
*/
#pragma once

#include <jendefs.h>
#include <AppHardwareApi.h>

class Watchdog
{
  public:

    typedef enum
    {
      WDTO_8MS     = 1,
      WDTO_24MS    = 2,
      WDTO_40MS    = 3,
      WDTO_72MS    = 4,
      WDTO_136MS   = 5,
      WDTO_264MS   = 6,
      WDTO_520MS   = 7,
      WDTO_1032MS  = 8,
      WDTO_2056MS  = 9,
      WDTO_4104MS  = 10,
      WDTO_8200MS  = 11,
      WDTO_16392MS = 12,
    } WDTO;

    static
    void begin(void)
    {
#ifndef WATCHDOG_ENABLED
      stop();
#endif
    }

    static
    void reset(void)
    {
#ifdef WATCHDOG_ENABLED
      restart();
#endif
    }

    static
    void start(WDTO timeout)
    {
      vAHI_WatchdogStart(timeout);
    }

    static
    void stop(void)
    {
      vAHI_WatchdogStop();
    }

    static
    void restart(void)
    {
      vAHI_WatchdogRestart();
    }

    static
    bool resetEvent(void)
    {
      return bAHI_WatchdogResetEvent();
    }

    static
    uint16 readValue(void)
    {
      return u16AHI_WatchdogReadValue();
    }

    static
    void exception(bool bEnable)
    {
      vAHI_WatchdogException(bEnable);
    }
};

watchdog.h - Watchdog Library for NXP-JN516x

This library is free software; you can redistribute it and/or

modify it under the terms of the GNU Lesser General Public

License as published by the Free Software Foundation; either

version 2.1 of the License, or (at your option) any later version.

This library 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

Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General

Public License along with this library; if not, write to the

Free Software Foundation, Inc., 59 Temple Place, Suite 330,

Boston, MA 02111-1307 USA

#pragma once

#include <jendefs.h>

#include <AppHardwareApi.h>

class Watchdog

{

public:

typedef enum

{

WDTO_8MS = 1,

WDTO_24MS = 2,

WDTO_40MS = 3,

WDTO_72MS = 4,

WDTO_136MS = 5,

WDTO_264MS = 6,

WDTO_520MS = 7,

WDTO_1032MS = 8,

WDTO_2056MS = 9,

WDTO_4104MS = 10,

WDTO_8200MS = 11,

WDTO_16392MS = 12,

} WDTO;

static

void begin(void)

{

#ifndef WATCHDOG_ENABLED

stop();

#endif

}

static

void reset(void)

{

#ifdef WATCHDOG_ENABLED

restart();

#endif

}

static

void start(WDTO timeout)

{

vAHI_WatchdogStart(timeout);

}

static

void stop(void)

{

vAHI_WatchdogStop();

}

static

void restart(void)

{

vAHI_WatchdogRestart();

}

static

bool resetEvent(void)

{

return bAHI_WatchdogResetEvent();

}

static

uint16 readValue(void)

{

return u16AHI_WatchdogReadValue();

}

static

void exception(bool bEnable)

{

vAHI_WatchdogException(bEnable);

}

};

次回は、i2Cライブラリの予定。

月: 2022年4月

NXP JN516X (TWELITE) をプログラミングする（WATCHDOG)