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