91 lines
4.0 KiB
C
91 lines
4.0 KiB
C
/**************************************************************************//**
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* @file wwdt.c
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* @version V3.00
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* @brief Window Watchdog Timer(WWDT) driver source file
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*
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* @copyright (C) 2019 Nuvoton Technology Corp. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. Neither the name of Nuvoton Technology Corp. nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*****************************************************************************/
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#include "NuMicro.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 Open WWDT and start counting
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*
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* @param[in] u32PreScale Pre-scale setting of WWDT counter. 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 Setting the window compared value. Valid values are between 0x0 to 0x3F.
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* @param[in] u32EnableInt Enable WWDT time-out interrupt function. Valid values are TRUE and FALSE.
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*
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* @return None
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*
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* @details This function makes WWDT module start counting with different counter period by pre-scale setting and compared window value.
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* @note Application can call this function only once after boot up.
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*/
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void WWDT_Open(uint32_t u32PreScale,
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uint32_t u32CmpValue,
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uint32_t u32EnableInt)
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{
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WWDT->CTL = u32PreScale |
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(u32CmpValue << WWDT_CTL_CMPDAT_Pos) |
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((u32EnableInt == (uint32_t)TRUE) ? WWDT_CTL_INTEN_Msk : 0UL) |
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WWDT_CTL_WWDTEN_Msk;
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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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/*** (C) COPYRIGHT 2019 Nuvoton Technology Corp. ***/
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