/**************************************************************************//** * @file nu_wwdt.h * @version V3.00 * @brief Window Watchdog Timer(WWDT) driver header file * * @copyright SPDX-License-Identifier: Apache-2.0 * @copyright Copyright (C) 2021 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__ */