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/**************************************************************************//**
* @file nu_wwdt.h
* @version V3.00
* @brief M480 series WWDT driver header file
*
* SPDX-License-Identifier: Apache-2.0
* @copyright (C) 2016-2020 Nuvoton Technology Corp. All rights reserved.
*****************************************************************************/
#ifndef __NU_WWDT_H__
#define __NU_WWDT_H__
#ifdef __cplusplus
extern "C"
{
#endif
/** @addtogroup Standard_Driver Standard Driver
@{
*/
/** @addtogroup WWDT_Driver WWDT Driver
@{
*/
/** @addtogroup WWDT_EXPORTED_CONSTANTS WWDT Exported Constants
@{
*/
/*---------------------------------------------------------------------------------------------------------*/
/* WWDT Prescale Period Constant Definitions */
/*---------------------------------------------------------------------------------------------------------*/
#define WWDT_PRESCALER_1 (0 << WWDT_CTL_PSCSEL_Pos) /*!< Select max time-out period to 1 * (64*WWDT_CLK) \hideinitializer */
#define WWDT_PRESCALER_2 (1 << WWDT_CTL_PSCSEL_Pos) /*!< Select max time-out period to 2 * (64*WWDT_CLK) \hideinitializer */
#define WWDT_PRESCALER_4 (2 << WWDT_CTL_PSCSEL_Pos) /*!< Select max time-out period to 4 * (64*WWDT_CLK) \hideinitializer */
#define WWDT_PRESCALER_8 (3 << WWDT_CTL_PSCSEL_Pos) /*!< Select max time-out period to 8 * (64*WWDT_CLK) \hideinitializer */
#define WWDT_PRESCALER_16 (4 << WWDT_CTL_PSCSEL_Pos) /*!< Select max time-out period to 16 * (64*WWDT_CLK) \hideinitializer */
#define WWDT_PRESCALER_32 (5 << WWDT_CTL_PSCSEL_Pos) /*!< Select max time-out period to 32 * (64*WWDT_CLK) \hideinitializer */
#define WWDT_PRESCALER_64 (6 << WWDT_CTL_PSCSEL_Pos) /*!< Select max time-out period to 64 * (64*WWDT_CLK) \hideinitializer */
#define WWDT_PRESCALER_128 (7 << WWDT_CTL_PSCSEL_Pos) /*!< Select max time-out period to 128 * (64*WWDT_CLK) \hideinitializer */
#define WWDT_PRESCALER_192 (8 << WWDT_CTL_PSCSEL_Pos) /*!< Select max time-out period to 192 * (64*WWDT_CLK) \hideinitializer */
#define WWDT_PRESCALER_256 (9 << WWDT_CTL_PSCSEL_Pos) /*!< Select max time-out period to 256 * (64*WWDT_CLK) \hideinitializer */
#define WWDT_PRESCALER_384 (10 << WWDT_CTL_PSCSEL_Pos) /*!< Select max time-out period to 384 * (64*WWDT_CLK) \hideinitializer */
#define WWDT_PRESCALER_512 (11 << WWDT_CTL_PSCSEL_Pos) /*!< Select max time-out period to 512 * (64*WWDT_CLK) \hideinitializer */
#define WWDT_PRESCALER_768 (12 << WWDT_CTL_PSCSEL_Pos) /*!< Select max time-out period to 768 * (64*WWDT_CLK) \hideinitializer */
#define WWDT_PRESCALER_1024 (13 << WWDT_CTL_PSCSEL_Pos) /*!< Select max time-out period to 1024 * (64*WWDT_CLK) \hideinitializer */
#define WWDT_PRESCALER_1536 (14 << WWDT_CTL_PSCSEL_Pos) /*!< Select max time-out period to 1536 * (64*WWDT_CLK) \hideinitializer */
#define WWDT_PRESCALER_2048 (15 << WWDT_CTL_PSCSEL_Pos) /*!< Select max time-out period to 2048 * (64*WWDT_CLK) \hideinitializer */
/*---------------------------------------------------------------------------------------------------------*/
/* WWDT Reload Counter Keyword Constant Definitions */
/*---------------------------------------------------------------------------------------------------------*/
#define WWDT_RELOAD_WORD (0x00005AA5) /*!< Fill this value to WWDT_RLDCNT register to reload WWDT counter \hideinitializer */
/*@}*/ /* end of group WWDT_EXPORTED_CONSTANTS */
/** @addtogroup WWDT_EXPORTED_FUNCTIONS WWDT Exported Functions
@{
*/
/**
* @brief Clear WWDT Reset System Flag
*
* @param None
*
* @return None
*
* @details This macro is used to clear WWDT time-out reset system flag.
* \hideinitializer
*/
#define WWDT_CLEAR_RESET_FLAG() (WWDT->STATUS = WWDT_STATUS_WWDTRF_Msk)
/**
* @brief Clear WWDT Compared Match Interrupt Flag
*
* @param None
*
* @return None
*
* @details This macro is used to clear WWDT compared match interrupt flag.
* \hideinitializer
*/
#define WWDT_CLEAR_INT_FLAG() (WWDT->STATUS = WWDT_STATUS_WWDTIF_Msk)
/**
* @brief Get WWDT Reset System Flag
*
* @param None
*
* @retval 0 WWDT time-out reset system did not occur
* @retval 1 WWDT time-out reset system occurred
*
* @details This macro is used to indicate system has been reset by WWDT time-out reset or not.
* \hideinitializer
*/
#define WWDT_GET_RESET_FLAG() ((WWDT->STATUS & WWDT_STATUS_WWDTRF_Msk)? 1 : 0)
/**
* @brief Get WWDT Compared Match Interrupt Flag
*
* @param None
*
* @retval 0 WWDT compare match interrupt did not occur
* @retval 1 WWDT compare match interrupt occurred
*
* @details This macro is used to indicate WWDT counter value matches CMPDAT value or not.
* \hideinitializer
*/
#define WWDT_GET_INT_FLAG() ((WWDT->STATUS & WWDT_STATUS_WWDTIF_Msk)? 1 : 0)
/**
* @brief Get WWDT Counter
*
* @param None
*
* @return WWDT Counter Value
*
* @details This macro reflects the current WWDT counter value.
* \hideinitializer
*/
#define WWDT_GET_COUNTER() (WWDT->CNT)
/**
* @brief Reload WWDT Counter
*
* @param None
*
* @return None
*
* @details This macro is used to reload the WWDT counter value to 0x3F.
* @note User can only write WWDT_RLDCNT register to reload WWDT counter value when current WWDT counter value \n
* between 0 and CMPDAT value. If user writes WWDT_RLDCNT when current WWDT counter value is larger than CMPDAT, \n
* WWDT reset signal will generate immediately to reset system.
* \hideinitializer
*/
#define WWDT_RELOAD_COUNTER() (WWDT->RLDCNT = WWDT_RELOAD_WORD)
void WWDT_Open(uint32_t u32PreScale, uint32_t u32CmpValue, uint32_t u32EnableInt);
/*@}*/ /* end of group WWDT_EXPORTED_FUNCTIONS */
/*@}*/ /* end of group WWDT_Driver */
/*@}*/ /* end of group Standard_Driver */
#ifdef __cplusplus
}
#endif
#endif /* __NU_WWDT_H__ */
/*** (C) COPYRIGHT 2016 Nuvoton Technology Corp. ***/
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