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/**
*\*\file n32g033_iwdg.c
*\*\author Nsing
*\*\version v1.0.0
*\*\copyright Copyright (c) 2025, Nsing Technologies Inc. All rights reserved.
**/
#include "n32g033_iwdg.h"

/**
*\*\name    IWDG_WriteConfig.
*\*\fun     Enables or disables write protection to IWDG_PREDIV and IWDG_RELV registers.
*\*\param   IWDG_WriteAccess
*\*\        - IWDG_WRITE_ENABLE
*\*\        - IWDG_WRITE_DISABLE
*\*\return  none
**/
void IWDG_WriteConfig(IWDOG_WRITE_CONFIG IWDG_WriteAccess)
{
    /* Check the parameters */
    IWDG->KEY = (uint32_t)IWDG_WriteAccess;
}

/**
*\*\name    IWDG_SetPrescalerDiv.
*\*\fun     IWDG_Prescaler specifies the IWDG prescaler value.
*\*\param   IWDG_Prescaler :
*\*\          - IWDG_PRESCALER_DIV4
*\*\          - IWDG_PRESCALER_DIV8
*\*\          - IWDG_PRESCALER_DIV16
*\*\          - IWDG_PRESCALER_DIV32
*\*\          - IWDG_PRESCALER_DIV64
*\*\          - IWDG_PRESCALER_DIV128
*\*\          - IWDG_PRESCALER_DIV256
*\*\return  none
**/
void IWDG_SetPrescalerDiv(uint8_t IWDG_Prescaler)
{
    IWDG->PREDIV = IWDG_Prescaler;
}


/**
*\*\name    IWDG_CntReload.
*\*\fun     Sets IWDG reload value.
*\*\param   Reload :
*\*\          -0x000 ~ 0x3FFF
*\*\return  none
**/
void IWDG_CntReload(uint16_t Reload)
{
    IWDG->RELV = Reload;
}


/**
*\*\name    IWDG_ReloadKey.
*\*\fun     Reload IWDG counter with value defined in IWDG_RELV register.
*\*\param   none
*\*\return  none
**/
void IWDG_ReloadKey(void)
{
    IWDG->KEY = KEY_ReloadKey;
}


/**
*\*\name    IWDG_Enable.
*\*\fun     Start watch dog counter.
*\*\param   none
*\*\return  none
**/
void IWDG_Enable(void)
{
    IWDG->KEY = KEY_EnableKey;
}

/**
*\*\name    IWDG_Freeze_Enable.
*\*\fun     Enter or exit IWDG freeze mode.
 *\*\param  Cmd :
 *\*\          - ENABLE
 *\*\          - DISABLE
*\*\return  none
**/
void IWDG_Freeze_Enable(FunctionalState Cmd)
{
    if(Cmd == ENABLE)
    {
        IWDG->KEY = IWDG_FREEZE;
    }
    else
    {
        IWDG->KEY = IWDG_UNFREEZE;
    }
    
}

/**
*\*\name    IWDG_GetStatus.
*\*\fun     Checks whether the specified IWDG flag is set or not.
*\*\param   IWDG_FLAG :
*\*\          - IWDG_PVU_FLAG
*\*\          - IWDG_CRVU_FLAG
*\*\          - IWDG_FREE_FLAG
*\*\return  FlagStatus :
*\*\          - RESET
*\*\          - SET
**/
FlagStatus IWDG_GetStatus(IWDG_STATUS_FLAG IWDG_FLAG)
{
    FlagStatus bitstatus;

    if ((IWDG->STS & (uint32_t)IWDG_FLAG) != (uint32_t)RESET)
    {
        bitstatus = SET;
    }
    else
    {
        bitstatus = RESET;
    }
    /* Return the flag status */
    return bitstatus;
}

/**
*\*\name    IWDG_INT_Enable.
*\*\fun     Enables or disables the specified IWDG interrupt
 *\*\param  Cmd :
 *\*\          - ENABLE
 *\*\          - DISABLE
*\*\return  none
**/
void IWDG_INT_Enable(FunctionalState Cmd)
{
    if(Cmd == ENABLE)
    {
        IWDG->CTRL |= IWDG_CRTL_ITE;
    }
    else
    {
        IWDG->CTRL &= (~IWDG_CRTL_ITE);
    }
    
}

/**
*\*\name    IWDG_Feed
*\*\fun     Feed IWDG in case reset occur.
*\*\param   none
*\*\return  none
**/
void IWDG_Feed(void)
{
	IWDG_ReloadKey();
}
