2022年4月 – ページ 17

32KHzのRCクロックにより駆動される41bitのタイマーである。

最大68,719,476,735msまでカウントできるので約２年はほったらかしにできるタイマーだ。

でも、起動したことすら忘れた頃にファイヤーされてもね．．．(笑)

一応キャリブレート処理しているが誤差は結構あると思う。たぶん。
ウェイクアップ起動するときは割り込みハンドラー指定を忘れずに！

【ライブラリ】

/*
  waketimer.h - Wake Timer 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>
#include "sysctrl.h"

class WakeTimer
{
  public:

    typedef enum
    {
      WAKE_0 = 0,
      WAKE_1 = 1,
    } WAKE;

    static
    void begin(void)
    {
      stop(WAKE_0);
      firedStatus(WAKE_0);
      firedStatus(WAKE_1);
      _calibrate = u32AHI_WakeTimerCalibrate();
    }

    static
    void start(WAKE wake, uint32 seconds, PR_HWINT_APPCALLBACK ptWkCallback = 0)
    {
      uint64 u64Count = 320000000UL / _calibrate * seconds;
      if ((u64Count > 1) && (u64Count <= 0x1FFFFFFFFFF))
      {
        switch (wake)
        {
          case WAKE_0: SysCtrl::interrupt(SysCtrl::INTSRC_WK0, ptWkCallback); break;
          case WAKE_1: SysCtrl::interrupt(SysCtrl::INTSRC_WK1, ptWkCallback); break;
        }
        vAHI_WakeTimerEnable(wake, ptWkCallback != 0);
        vAHI_WakeTimerStartLarge(wake, u64Count);
      }
    }

    static
    void stop(WAKE wake)
    {
      vAHI_WakeTimerStop(wake);
    }

    static
    uint64 read(WAKE wake)
    {
      return u64AHI_WakeTimerReadLarge(wake);
    }

    static
    uint8 status(void)
    {
      return u8AHI_WakeTimerStatus();
    }

    static
    bool status(WAKE wake)
    {
      switch (wake)
      {
        case WAKE_0: return (status() & E_AHI_WAKE_TIMER_MASK_0) != 0;
        case WAKE_1: return (status() & E_AHI_WAKE_TIMER_MASK_1) != 0;
      }
      return false;
    }

    static
    uint8 firedStatus(void)
    {
      return u8AHI_WakeTimerFiredStatus();
    }

    static
    bool firedStatus(WAKE wake)
    {
      switch (wake)
      {
        case WAKE_0: return (firedStatus() & E_AHI_WAKE_TIMER_MASK_0) != 0;
        case WAKE_1: return (firedStatus() & E_AHI_WAKE_TIMER_MASK_1) != 0;
      }
      return false;
    }

    static
    uint32 calibrate(void)
    {
      return _calibrate;
    }

  private:

    static uint32 _calibrate;
};

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waketimer.h - Wake Timer 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>

#include "sysctrl.h"

class WakeTimer

{

public:

typedef enum

{

WAKE_0 = 0,

WAKE_1 = 1,

} WAKE;

static

void begin(void)

{

stop(WAKE_0);

firedStatus(WAKE_0);

firedStatus(WAKE_1);

_calibrate = u32AHI_WakeTimerCalibrate();

}

static

void start(WAKE wake, uint32 seconds, PR_HWINT_APPCALLBACK ptWkCallback = 0)

{

uint64 u64Count = 320000000UL / _calibrate * seconds;

if ((u64Count > 1) && (u64Count <= 0x1FFFFFFFFFF))

{

switch (wake)

{

case WAKE_0: SysCtrl::interrupt(SysCtrl::INTSRC_WK0, ptWkCallback); break;

case WAKE_1: SysCtrl::interrupt(SysCtrl::INTSRC_WK1, ptWkCallback); break;

}

vAHI_WakeTimerEnable(wake, ptWkCallback != 0);

vAHI_WakeTimerStartLarge(wake, u64Count);

}

static

void stop(WAKE wake)

{

vAHI_WakeTimerStop(wake);

}

static

uint64 read(WAKE wake)

{

return u64AHI_WakeTimerReadLarge(wake);

}

static

uint8 status(void)

{

return u8AHI_WakeTimerStatus();

}

static

bool status(WAKE wake)

{

switch (wake)

{

case WAKE_0: return (status() & E_AHI_WAKE_TIMER_MASK_0) != 0;

case WAKE_1: return (status() & E_AHI_WAKE_TIMER_MASK_1) != 0;

}

return false;

}

static

uint8 firedStatus(void)

{

return u8AHI_WakeTimerFiredStatus();

}

static

bool firedStatus(WAKE wake)

{

switch (wake)

{

case WAKE_0: return (firedStatus() & E_AHI_WAKE_TIMER_MASK_0) != 0;

case WAKE_1: return (firedStatus() & E_AHI_WAKE_TIMER_MASK_1) != 0;

}

return false;

}

static

uint32 calibrate(void)

{

return _calibrate;

}

private:

static uint32 _calibrate;

};

/*
  waketimer.cpp - Wake Timer 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
*/
#include "waketimer.h"

uint32 WakeTimer::_calibrate = 10000;

waketimer.cpp - Wake Timer 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

#include "waketimer.h"

uint32 WakeTimer::_calibrate = 10000;

次回は、Watchdogの予定

月: 2022年4月

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