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/**************************************************************************//**
* @file wwdt.c
* @brief NUC980 WWDT driver source file
*
* SPDX-License-Identifier: Apache-2.0
* @copyright (C) 2018 Nuvoton Technology Corp. All rights reserved.
*****************************************************************************/
#include "nu_wwdt.h"
/** @addtogroup Standard_Driver Standard Driver
@{
*/
/** @addtogroup WWDT_Driver WWDT Driver
@{
*/
/** @addtogroup WWDT_EXPORTED_FUNCTIONS WWDT Exported Functions
@{
*/
/**
* @brief This function make WWDT module start counting with different counter period and compared window value
* @param[in] u32PreScale Prescale period for the WWDT counter period. Valid values are:
* - \ref WWDT_PRESCALER_1
* - \ref WWDT_PRESCALER_2
* - \ref WWDT_PRESCALER_4
* - \ref WWDT_PRESCALER_8
* - \ref WWDT_PRESCALER_16
* - \ref WWDT_PRESCALER_32
* - \ref WWDT_PRESCALER_64
* - \ref WWDT_PRESCALER_128
* - \ref WWDT_PRESCALER_192
* - \ref WWDT_PRESCALER_256
* - \ref WWDT_PRESCALER_384
* - \ref WWDT_PRESCALER_512
* - \ref WWDT_PRESCALER_768
* - \ref WWDT_PRESCALER_1024
* - \ref WWDT_PRESCALER_1536
* - \ref WWDT_PRESCALER_2048
* @param[in] u32CmpValue Window compared value. Valid values are between 0x0 to 0x3F
* @param[in] u32EnableInt Enable WWDT interrupt or not. Valid values are \ref TRUE and \ref FALSE
* @return None
* @note Application can call this function can only once after boot up
*/
void WWDT_Open(UINT u32PreScale, UINT u32CmpValue, UINT u32EnableInt)
{
UINT reg;
reg = u32PreScale |
(u32CmpValue << 16) |
0x1 | // enable
(u32EnableInt ? 0x2 : 0);
outpw(REG_WWDT_CTL, reg);
return;
}
/*@}*/ /* end of group WWDT_EXPORTED_FUNCTIONS */
/*@}*/ /* end of group WWDT_Driver */
/*@}*/ /* end of group Standard_Driver */
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