smtc_hal_watchdog.c

/*!
 * \file      smtc_hal_watchdog.c
 *
 * \brief     WATCHDOG Hardware Abstraction Layer implementation
 *
 * The Clear BSD License
 * Copyright Semtech Corporation 2021. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted (subject to the limitations in the disclaimer
 * below) provided that the following conditions are met:
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *     * Neither the name of the Semtech corporation nor the
 *       names of its contributors may be used to endorse or promote products
 *       derived from this software without specific prior written permission.
 *
 * NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED BY
 * THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
 * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT
 * NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
 * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL SEMTECH CORPORATION BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

/*
 * -----------------------------------------------------------------------------
 * --- DEPENDENCIES ------------------------------------------------------------
 */

#include <stdint.h>   // C99 types
#include <stdbool.h>  // bool type

#include "smtc_hal_watchdog.h"
#include "stm32l4xx_hal.h"

/*
 * -----------------------------------------------------------------------------
 * --- PRIVATE MACROS-----------------------------------------------------------
 */

/*
 * -----------------------------------------------------------------------------
 * --- PRIVATE CONSTANTS -------------------------------------------------------
 */

/*
 * -----------------------------------------------------------------------------
 * --- PRIVATE TYPES -----------------------------------------------------------
 */

/*
 * -----------------------------------------------------------------------------
 * --- PRIVATE VARIABLES -------------------------------------------------------
 */

static IWDG_HandleTypeDef iwdg_handle;

/*
 * -----------------------------------------------------------------------------
 * --- PRIVATE FUNCTIONS DECLARATION -------------------------------------------
 */

/*
 * -----------------------------------------------------------------------------
 * --- PUBLIC FUNCTIONS DEFINITION ---------------------------------------------
 */

void hal_watchdog_init( void )
{
    iwdg_handle.Instance       = IWDG;
    iwdg_handle.Init.Prescaler = IWDG_PRESCALER_256;
    iwdg_handle.Init.Window    = IWDG_WINDOW_DISABLE;
    iwdg_handle.Init.Reload    = 0xFFF;

    HAL_IWDG_Init( &iwdg_handle );
}

void hal_watchdog_reload( void )
{
    HAL_IWDG_Refresh( &iwdg_handle );
}

/*
 * -----------------------------------------------------------------------------
 * --- PRIVATE FUNCTIONS DEFINITION --------------------------------------------
 */

/* --- EOF ------------------------------------------------------------------ */