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/**************************************************************************//**
* @file ewdt.c
* @version V3.00
* @brief Extra Watchdog Timer(EWDT) driver source file
*
* @copyright SPDX-License-Identifier: Apache-2.0
* @copyright Copyright (C) 2020 Nuvoton Technology Corp. All rights reserved.
*****************************************************************************/
#include "NuMicro.h"
/** @addtogroup Standard_Driver Standard Driver
@{
*/
/** @addtogroup EWDT_Driver EWDT Driver
@{
*/
/** @addtogroup EWDT_EXPORTED_FUNCTIONS EWDT Exported Functions
@{
*/
/**
* @brief Initialize EWDT and start counting
*
* @param[in] u32TimeoutInterval Time-out interval period of EWDT module. Valid values are:
* - \ref EWDT_TIMEOUT_2POW4
* - \ref EWDT_TIMEOUT_2POW6
* - \ref EWDT_TIMEOUT_2POW8
* - \ref EWDT_TIMEOUT_2POW10
* - \ref EWDT_TIMEOUT_2POW12
* - \ref EWDT_TIMEOUT_2POW14
* - \ref EWDT_TIMEOUT_2POW16
* - \ref EWDT_TIMEOUT_2POW18
* - \ref EWDT_TIMEOUT_2POW20
* @param[in] u32ResetDelay Configure EWDT time-out reset delay period. Valid values are:
* - \ref EWDT_RESET_DELAY_1026CLK
* - \ref EWDT_RESET_DELAY_130CLK
* - \ref EWDT_RESET_DELAY_18CLK
* - \ref EWDT_RESET_DELAY_3CLK
* @param[in] u32EnableReset Enable EWDT time-out reset system function. Valid values are TRUE and FALSE.
* @param[in] u32EnableWakeup Enable EWDT time-out wake-up system function. Valid values are TRUE and FALSE.
*
* @return None
*
* @details This function makes EWDT module start counting with different time-out interval, reset delay period and choose to \n
* enable or disable EWDT time-out reset system or wake-up system.
* @note Please make sure that Register Write-Protection Function has been disabled before using this function.
*/
void EWDT_Open(uint32_t u32TimeoutInterval,
uint32_t u32ResetDelay,
uint32_t u32EnableReset,
uint32_t u32EnableWakeup)
{
EWDT->ALTCTL = u32ResetDelay;
EWDT->CTL = u32TimeoutInterval | EWDT_CTL_WDTEN_Msk |
(u32EnableReset << EWDT_CTL_RSTEN_Pos) |
(u32EnableWakeup << EWDT_CTL_WKEN_Pos);
while((EWDT->CTL & EWDT_CTL_SYNC_Msk) == EWDT_CTL_SYNC_Msk) {} /* Wait enable WDTEN bit completed, it needs 2 * EWDT_CLK. */
}
/**@}*/ /* end of group EWDT_EXPORTED_FUNCTIONS */
/**@}*/ /* end of group EWDT_Driver */
/**@}*/ /* end of group Standard_Driver */
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