149 lines
5.8 KiB
C
149 lines
5.8 KiB
C
/**************************************************************************//**
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* @file wwdt.h
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* @version V3.00
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* $Revision: 7 $
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* $Date: 15/08/11 10:26a $
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* @brief M451 series WWDT driver header file
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*
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* @note
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* Copyright (C) 2013~2015 Nuvoton Technology Corp. All rights reserved.
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*****************************************************************************/
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#ifndef __WWDT_H__
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#define __WWDT_H__
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#ifdef __cplusplus
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extern "C"
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{
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#endif
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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_CONSTANTS WWDT Exported Constants
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@{
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*/
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/*---------------------------------------------------------------------------------------------------------*/
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/* WWDT Prescale Period Constant Definitions */
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/*---------------------------------------------------------------------------------------------------------*/
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#define WWDT_PRESCALER_1 (0 << WWDT_CTL_PSCSEL_Pos) /*!< Select max time-out period to 1 * (64*WWDT_CLK) */
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#define WWDT_PRESCALER_2 (1 << WWDT_CTL_PSCSEL_Pos) /*!< Select max time-out period to 2 * (64*WWDT_CLK) */
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#define WWDT_PRESCALER_4 (2 << WWDT_CTL_PSCSEL_Pos) /*!< Select max time-out period to 4 * (64*WWDT_CLK) */
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#define WWDT_PRESCALER_8 (3 << WWDT_CTL_PSCSEL_Pos) /*!< Select max time-out period to 8 * (64*WWDT_CLK) */
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#define WWDT_PRESCALER_16 (4 << WWDT_CTL_PSCSEL_Pos) /*!< Select max time-out period to 16 * (64*WWDT_CLK) */
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#define WWDT_PRESCALER_32 (5 << WWDT_CTL_PSCSEL_Pos) /*!< Select max time-out period to 32 * (64*WWDT_CLK) */
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#define WWDT_PRESCALER_64 (6 << WWDT_CTL_PSCSEL_Pos) /*!< Select max time-out period to 64 * (64*WWDT_CLK) */
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#define WWDT_PRESCALER_128 (7 << WWDT_CTL_PSCSEL_Pos) /*!< Select max time-out period to 128 * (64*WWDT_CLK) */
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#define WWDT_PRESCALER_192 (8 << WWDT_CTL_PSCSEL_Pos) /*!< Select max time-out period to 192 * (64*WWDT_CLK) */
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#define WWDT_PRESCALER_256 (9 << WWDT_CTL_PSCSEL_Pos) /*!< Select max time-out period to 256 * (64*WWDT_CLK) */
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#define WWDT_PRESCALER_384 (10 << WWDT_CTL_PSCSEL_Pos) /*!< Select max time-out period to 384 * (64*WWDT_CLK) */
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#define WWDT_PRESCALER_512 (11 << WWDT_CTL_PSCSEL_Pos) /*!< Select max time-out period to 512 * (64*WWDT_CLK) */
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#define WWDT_PRESCALER_768 (12 << WWDT_CTL_PSCSEL_Pos) /*!< Select max time-out period to 768 * (64*WWDT_CLK) */
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#define WWDT_PRESCALER_1024 (13 << WWDT_CTL_PSCSEL_Pos) /*!< Select max time-out period to 1024 * (64*WWDT_CLK) */
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#define WWDT_PRESCALER_1536 (14 << WWDT_CTL_PSCSEL_Pos) /*!< Select max time-out period to 1536 * (64*WWDT_CLK) */
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#define WWDT_PRESCALER_2048 (15 << WWDT_CTL_PSCSEL_Pos) /*!< Select max time-out period to 2048 * (64*WWDT_CLK) */
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/*---------------------------------------------------------------------------------------------------------*/
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/* WWDT Reload Counter Keyword Constant Definitions */
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/*---------------------------------------------------------------------------------------------------------*/
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#define WWDT_RELOAD_WORD (0x00005AA5) /*!< Fill this value to WWDT_RLDCNT register to reload WWDT counter */
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/*@}*/ /* end of group WWDT_EXPORTED_CONSTANTS */
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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 Clear WWDT Reset System Flag
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*
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* @param None
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*
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* @return None
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*
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* @details This macro is used to clear WWDT time-out reset system flag.
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*/
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#define WWDT_CLEAR_RESET_FLAG() (WWDT->STATUS = (WWDT->STATUS & ~WWDT_STATUS_WWDTIF_Msk) | WWDT_STATUS_WWDTRF_Msk)
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/**
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* @brief Clear WWDT Compared Match Interrupt Flag
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*
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* @param None
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*
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* @return None
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*
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* @details This macro is used to clear WWDT compared match interrupt flag.
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*/
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#define WWDT_CLEAR_INT_FLAG() (WWDT->STATUS = (WWDT->STATUS & ~WWDT_STATUS_WWDTRF_Msk) | WWDT_STATUS_WWDTIF_Msk)
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/**
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* @brief Get WWDT Reset System Flag
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*
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* @param None
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*
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* @retval 0 WWDT time-out reset system did not occur
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* @retval 1 WWDT time-out reset system occurred
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*
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* @details This macro is used to indicate system has been reset by WWDT time-out reset or not.
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*/
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#define WWDT_GET_RESET_FLAG() ((WWDT->STATUS & WWDT_STATUS_WWDTRF_Msk)? 1 : 0)
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/**
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* @brief Get WWDT Compared Match Interrupt Flag
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*
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* @param None
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*
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* @retval 0 WWDT compare match interrupt did not occur
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* @retval 1 WWDT compare match interrupt occurred
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*
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* @details This macro is used to indicate WWDT counter value matches CMPDAT value or not.
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*/
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#define WWDT_GET_INT_FLAG() ((WWDT->STATUS & WWDT_STATUS_WWDTIF_Msk)? 1 : 0)
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/**
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* @brief Get WWDT Counter
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*
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* @param None
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*
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* @return WWDT Counter Value
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*
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* @details This macro reflects the current WWDT counter value.
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*/
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#define WWDT_GET_COUNTER() (WWDT->CNT)
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/**
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* @brief Reload WWDT Counter
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*
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* @param None
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*
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* @return None
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*
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* @details This macro is used to reload the WWDT counter value to 0x3F.
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* @note User can only write WWDT_RLDCNT register to reload WWDT counter value when current WWDT counter value \n
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* between 0 and CMPDAT value. If user writes WWDT_RLDCNT when current WWDT counter value is larger than CMPDAT, \n
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* WWDT reset signal will generate immediately to reset system.
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*/
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#define WWDT_RELOAD_COUNTER() (WWDT->RLDCNT = WWDT_RELOAD_WORD)
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void WWDT_Open(uint32_t u32PreScale, uint32_t u32CmpValue, uint32_t u32EnableInt);
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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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#ifdef __cplusplus
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}
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#endif
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#endif //__WWDT_H__
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/*** (C) COPYRIGHT 2013~2015 Nuvoton Technology Corp. ***/
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