2022年4月 – ページ 12

コンパレータは、簡単なので説明しなくてもいい？かな。(-_-;)

ちなみにBANDGAP(Typ1.235V)とは内部リファレンス電圧のこと。

【ライブラリ】

/*
  comparator.h - Comparator 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"
#include "analog.h"
#include "gpio.h"

/*
   I/O Ports

     COMP1P: DIO16
     COMP1M: DIO17

     Input Signal Reference Signal Enumeration (u8SignalSelect)
     ------------------------------------------------------------
     COMP1P       COMP1M           E_AHI_COMP_SEL_EXT
     COMP1P       Vref             E_AHI_COMP_SEL_BANDGAP
     COMP1M       COMP1P           E_AHI_COMP_SEL_EXT_INVERSE
     COMP1M       Vref             E_AHI_COMP_SEL_BANDGAP_INVERSE
*/

class Comparator
{
  public:

    // u8Hysteresis Hysteresis setting (controllable from 0 to 40mV)
    typedef enum
    {
      HYST_0MV  = E_AHI_COMP_HYSTERESIS_0MV,  // 0mV
      HYST_10MV = E_AHI_COMP_HYSTERESIS_10MV, // 10mV
      HYST_20MV = E_AHI_COMP_HYSTERESIS_20MV, // 20mV
      HYST_40MV = E_AHI_COMP_HYSTERESIS_40MV, // 40mV
    } HYST;

    // u8SignalSelect Selection of input and reference signals (see table above):
    typedef enum
    {
      SEL_EXT             = E_AHI_COMP_SEL_EXT,
      SEL_BANDGAP         = E_AHI_COMP_SEL_BANDGAP,
      SEL_EXT_INVERSE     = E_AHI_COMP_SEL_EXT_INVERSE,
      SEL_BANDGAP_INVERSE = E_AHI_COMP_SEL_BANDGAP_INVERSE,
    } SEL;

    static
    void begin(SEL sel, HYST hyst = HYST_20MV, PR_HWINT_APPCALLBACK prCompCallback = 0, bool rising = false)
    {
      switch (sel)
      {
        case SEL_EXT:
        case SEL_EXT_INVERSE:
          Gpio::pinMode(Gpio::DIO16, Gpio::INPUT);
          Gpio::pinMode(Gpio::DIO17, Gpio::INPUT);
          break;
        case SEL_BANDGAP:
        case SEL_BANDGAP_INVERSE:
          Analog::configure();
          Gpio::pinMode(sel == SEL_BANDGAP ? Gpio::DIO16 : Gpio::DIO17, Gpio::INPUT);
          break;
      }
      SysCtrl::interrupt(SysCtrl::INTSRC_COMP0, prCompCallback);
      vAHI_ComparatorIntEnable(E_AHI_AP_COMPARATOR_1, prCompCallback != 0, rising);
      vAHI_ComparatorEnable(E_AHI_AP_COMPARATOR_1, hyst, sel);
    }

    static
    void end(void)
    {
      vAHI_ComparatorDisable(E_AHI_AP_COMPARATOR_1);
    }

    static
    void lowPowerMode(bool enable)
    {
      vAHI_ComparatorLowPowerMode(enable);
    }

    static
    bool status(void)
    {
      return (u8AHI_ComparatorStatus() & E_AHI_AP_COMPARATOR_MASK_1) != 0;
    }
};

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comparator.h - Comparator 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"

#include "analog.h"

#include "gpio.h"

I/O Ports

COMP1P: DIO16

COMP1M: DIO17

Input Signal Reference Signal Enumeration (u8SignalSelect)

------------------------------------------------------------

COMP1P COMP1M E_AHI_COMP_SEL_EXT

COMP1P Vref E_AHI_COMP_SEL_BANDGAP

COMP1M COMP1P E_AHI_COMP_SEL_EXT_INVERSE

COMP1M Vref E_AHI_COMP_SEL_BANDGAP_INVERSE

class Comparator

{

public:

// u8Hysteresis Hysteresis setting (controllable from 0 to 40mV)

typedef enum

{

HYST_0MV = E_AHI_COMP_HYSTERESIS_0MV, // 0mV

HYST_10MV = E_AHI_COMP_HYSTERESIS_10MV, // 10mV

HYST_20MV = E_AHI_COMP_HYSTERESIS_20MV, // 20mV

HYST_40MV = E_AHI_COMP_HYSTERESIS_40MV, // 40mV

} HYST;

// u8SignalSelect Selection of input and reference signals (see table above):

typedef enum

{

SEL_EXT = E_AHI_COMP_SEL_EXT,

SEL_BANDGAP = E_AHI_COMP_SEL_BANDGAP,

SEL_EXT_INVERSE = E_AHI_COMP_SEL_EXT_INVERSE,

SEL_BANDGAP_INVERSE = E_AHI_COMP_SEL_BANDGAP_INVERSE,

} SEL;

static

void begin(SEL sel, HYST hyst = HYST_20MV, PR_HWINT_APPCALLBACK prCompCallback = 0, bool rising = false)

{

switch (sel)

{

case SEL_EXT:

case SEL_EXT_INVERSE:

Gpio::pinMode(Gpio::DIO16, Gpio::INPUT);

Gpio::pinMode(Gpio::DIO17, Gpio::INPUT);

break;

case SEL_BANDGAP:

case SEL_BANDGAP_INVERSE:

Analog::configure();

Gpio::pinMode(sel == SEL_BANDGAP ? Gpio::DIO16 : Gpio::DIO17, Gpio::INPUT);

break;

}

SysCtrl::interrupt(SysCtrl::INTSRC_COMP0, prCompCallback);

vAHI_ComparatorIntEnable(E_AHI_AP_COMPARATOR_1, prCompCallback != 0, rising);

vAHI_ComparatorEnable(E_AHI_AP_COMPARATOR_1, hyst, sel);

}

static

void end(void)

{

vAHI_ComparatorDisable(E_AHI_AP_COMPARATOR_1);

}

static

void lowPowerMode(bool enable)

{

vAHI_ComparatorLowPowerMode(enable);

}

static

bool status(void)

{

return (u8AHI_ComparatorStatus() & E_AHI_AP_COMPARATOR_MASK_1) != 0;

}

};

次回は、Clockの予定。

月: 2022年4月

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