1 /**************************************************************************//** 2 * @file ewwdt.h 3 * @version V3.00 4 * @brief Extra Window Watchdog Timer(EWWDT) driver header file 5 * 6 * @copyright SPDX-License-Identifier: Apache-2.0 7 * @copyright Copyright (C) 2020 Nuvoton Technology Corp. All rights reserved. 8 *****************************************************************************/ 9 #ifndef __EWWDT_H__ 10 #define __EWWDT_H__ 11 12 #ifdef __cplusplus 13 extern "C" 14 { 15 #endif 16 17 18 /** @addtogroup Standard_Driver Standard Driver 19 @{ 20 */ 21 22 /** @addtogroup EWWDT_Driver EWWDT Driver 23 @{ 24 */ 25 26 /** @addtogroup EWWDT_EXPORTED_CONSTANTS EWWDT Exported Constants 27 @{ 28 */ 29 /*---------------------------------------------------------------------------------------------------------*/ 30 /* EWWDT Prescale Period Constant Definitions */ 31 /*---------------------------------------------------------------------------------------------------------*/ 32 #define EWWDT_PRESCALER_1 (0 << EWWDT_CTL_PSCSEL_Pos) /*!< Select max time-out period to 1 * (64*EWWDT_CLK) \hideinitializer */ 33 #define EWWDT_PRESCALER_2 (1 << EWWDT_CTL_PSCSEL_Pos) /*!< Select max time-out period to 2 * (64*EWWDT_CLK) \hideinitializer */ 34 #define EWWDT_PRESCALER_4 (2 << EWWDT_CTL_PSCSEL_Pos) /*!< Select max time-out period to 4 * (64*EWWDT_CLK) \hideinitializer */ 35 #define EWWDT_PRESCALER_8 (3 << EWWDT_CTL_PSCSEL_Pos) /*!< Select max time-out period to 8 * (64*EWWDT_CLK) \hideinitializer */ 36 #define EWWDT_PRESCALER_16 (4 << EWWDT_CTL_PSCSEL_Pos) /*!< Select max time-out period to 16 * (64*EWWDT_CLK) \hideinitializer */ 37 #define EWWDT_PRESCALER_32 (5 << EWWDT_CTL_PSCSEL_Pos) /*!< Select max time-out period to 32 * (64*EWWDT_CLK) \hideinitializer */ 38 #define EWWDT_PRESCALER_64 (6 << EWWDT_CTL_PSCSEL_Pos) /*!< Select max time-out period to 64 * (64*EWWDT_CLK) \hideinitializer */ 39 #define EWWDT_PRESCALER_128 (7 << EWWDT_CTL_PSCSEL_Pos) /*!< Select max time-out period to 128 * (64*EWWDT_CLK) \hideinitializer */ 40 #define EWWDT_PRESCALER_192 (8 << EWWDT_CTL_PSCSEL_Pos) /*!< Select max time-out period to 192 * (64*EWWDT_CLK) \hideinitializer */ 41 #define EWWDT_PRESCALER_256 (9 << EWWDT_CTL_PSCSEL_Pos) /*!< Select max time-out period to 256 * (64*EWWDT_CLK) \hideinitializer */ 42 #define EWWDT_PRESCALER_384 (10 << EWWDT_CTL_PSCSEL_Pos) /*!< Select max time-out period to 384 * (64*EWWDT_CLK) \hideinitializer */ 43 #define EWWDT_PRESCALER_512 (11 << EWWDT_CTL_PSCSEL_Pos) /*!< Select max time-out period to 512 * (64*EWWDT_CLK) \hideinitializer */ 44 #define EWWDT_PRESCALER_768 (12 << EWWDT_CTL_PSCSEL_Pos) /*!< Select max time-out period to 768 * (64*EWWDT_CLK) \hideinitializer */ 45 #define EWWDT_PRESCALER_1024 (13 << EWWDT_CTL_PSCSEL_Pos) /*!< Select max time-out period to 1024 * (64*EWWDT_CLK) \hideinitializer */ 46 #define EWWDT_PRESCALER_1536 (14 << EWWDT_CTL_PSCSEL_Pos) /*!< Select max time-out period to 1536 * (64*EWWDT_CLK) \hideinitializer */ 47 #define EWWDT_PRESCALER_2048 (15 << EWWDT_CTL_PSCSEL_Pos) /*!< Select max time-out period to 2048 * (64*EWWDT_CLK) \hideinitializer */ 48 49 /*---------------------------------------------------------------------------------------------------------*/ 50 /* EWWDT Reload Counter Keyword Constant Definitions */ 51 /*---------------------------------------------------------------------------------------------------------*/ 52 #define EWWDT_RELOAD_WORD (0x00005AA5UL) /*!< Fill this value to EWWDT_RLDCNT register to reload EWWDT counter \hideinitializer */ 53 54 /**@}*/ /* end of group EWWDT_EXPORTED_CONSTANTS */ 55 56 57 /** @addtogroup EWWDT_EXPORTED_FUNCTIONS EWWDT Exported Functions 58 @{ 59 */ 60 61 /** 62 * @brief Clear EWWDT Reset System Flag 63 * 64 * @param None 65 * 66 * @return None 67 * 68 * @details This macro is used to clear EWWDT time-out reset system flag. 69 * \hideinitializer 70 */ 71 #define EWWDT_CLEAR_RESET_FLAG() (EWWDT->STATUS = EWWDT_STATUS_WWDTRF_Msk) 72 73 /** 74 * @brief Clear EWWDT Compared Match Interrupt Flag 75 * 76 * @param None 77 * 78 * @return None 79 * 80 * @details This macro is used to clear EWWDT compared match interrupt flag. 81 * \hideinitializer 82 */ 83 #define EWWDT_CLEAR_INT_FLAG() (EWWDT->STATUS = EWWDT_STATUS_WWDTIF_Msk) 84 85 /** 86 * @brief Get EWWDT Reset System Flag 87 * 88 * @param None 89 * 90 * @retval 0 EWWDT time-out reset system did not occur 91 * @retval 1 EWWDT time-out reset system occurred 92 * 93 * @details This macro is used to indicate system has been reset by EWWDT time-out reset or not. 94 * \hideinitializer 95 */ 96 #define EWWDT_GET_RESET_FLAG() ((EWWDT->STATUS & EWWDT_STATUS_WWDTRF_Msk)? 1 : 0) 97 98 /** 99 * @brief Get EWWDT Compared Match Interrupt Flag 100 * 101 * @param None 102 * 103 * @retval 0 EWWDT compare match interrupt did not occur 104 * @retval 1 EWWDT compare match interrupt occurred 105 * 106 * @details This macro is used to indicate EWWDT counter value matches CMPDAT value or not. 107 * \hideinitializer 108 */ 109 #define EWWDT_GET_INT_FLAG() ((EWWDT->STATUS & EWWDT_STATUS_WWDTIF_Msk)? 1 : 0) 110 111 /** 112 * @brief Get EWWDT Counter 113 * 114 * @param None 115 * 116 * @return EWWDT Counter Value 117 * 118 * @details This macro reflects the current EWWDT counter value. 119 * \hideinitializer 120 */ 121 #define EWWDT_GET_COUNTER() (EWWDT->CNT) 122 123 /** 124 * @brief Reload EWWDT Counter 125 * 126 * @param None 127 * 128 * @return None 129 * 130 * @details This macro is used to reload the EWWDT counter value to 0x3F. 131 * @note User can only write EWWDT_RLDCNT register to reload EWWDT counter value when current EWWDT counter value \n 132 * between 0 and CMPDAT value. If user writes EWWDT_RLDCNT when current EWWDT counter value is larger than CMPDAT, \n 133 * EWWDT reset signal will generate immediately to reset system. 134 * \hideinitializer 135 */ 136 #define EWWDT_RELOAD_COUNTER() (EWWDT->RLDCNT = EWWDT_RELOAD_WORD) 137 138 void EWWDT_Open(uint32_t u32PreScale, uint32_t u32CmpValue, uint32_t u32EnableInt); 139 140 /**@}*/ /* end of group EWWDT_EXPORTED_FUNCTIONS */ 141 142 /**@}*/ /* end of group EWWDT_Driver */ 143 144 /**@}*/ /* end of group Standard_Driver */ 145 146 #ifdef __cplusplus 147 } 148 #endif 149 150 #endif /* __EWWDT_H__ */ 151
