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/*******************************************************************************
 * DESCRIPTION   : window watchdog timer driver
 ******************************************************************************/
/******************************************************************************
 * @file          wdt.c
 * - Version      : 0.01
 * @brief         Window Watchdog Timer driver
 * .
 *****************************************************************************/
/******************************************************************************
 * History : DD.MM.YYYY Version  Description
 *         : 28.07.2021 0.01     First Release
 *****************************************************************************/

#include <stdint.h>
#include <wdt.h>
#include <mem_io.h>

#define ICUMX_WDTA0_BASE    (0xFFFEE080U)   /* Watchdog Timer base */
#define ICUMX_WDTA0EVAC     (ICUMX_WDTA0_BASE+0x0004U)
#define ICUMX_WDTA0REF      (ICUMX_WDTA0_BASE+0x0008U)

/* Activation code */
#define WDT_ACT_CODE        (0xACU)

void wdt_restart(void)
{
    uint8_t  reg;

    reg = mem_read8(ICUMX_WDTA0REF);
    /* Watchdog Timer restart.                                                                     */
    /* Subtract ICUMX_WDTA0REF from activation code when VAC(Variable Activation Code) is enabled. */
    mem_write8(ICUMX_WDTA0EVAC, WDT_ACT_CODE - reg);
}
/* End of function wdt_restart(void) */

