rt-thread-official/bsp/nuvoton/libraries/m460/StdDriver/inc/nu_wdt.h

237 lines
9.0 KiB
C
Raw Normal View History

/**************************************************************************//**
* @file nu_wdt.h
* @version V3.00
* @brief Watchdog Timer(WDT) driver header file
*
* @copyright SPDX-License-Identifier: Apache-2.0
* @copyright Copyright (C) 2021 Nuvoton Technology Corp. All rights reserved.
*****************************************************************************/
#ifndef __NU_WDT_H__
#define __NU_WDT_H__
#ifdef __cplusplus
extern "C"
{
#endif
/** @addtogroup Standard_Driver Standard Driver
@{
*/
/** @addtogroup WDT_Driver WDT Driver
@{
*/
/** @addtogroup WDT_EXPORTED_CONSTANTS WDT Exported Constants
@{
*/
/*---------------------------------------------------------------------------------------------------------*/
/* WDT Time-out Interval Period Constant Definitions */
/*---------------------------------------------------------------------------------------------------------*/
#define WDT_TIMEOUT_2POW4 (0UL << WDT_CTL_TOUTSEL_Pos) /*!< Setting WDT time-out interval to 2^4 * WDT clocks \hideinitializer */
#define WDT_TIMEOUT_2POW6 (1UL << WDT_CTL_TOUTSEL_Pos) /*!< Setting WDT time-out interval to 2^6 * WDT clocks \hideinitializer */
#define WDT_TIMEOUT_2POW8 (2UL << WDT_CTL_TOUTSEL_Pos) /*!< Setting WDT time-out interval to 2^8 * WDT clocks \hideinitializer */
#define WDT_TIMEOUT_2POW10 (3UL << WDT_CTL_TOUTSEL_Pos) /*!< Setting WDT time-out interval to 2^10 * WDT clocks \hideinitializer */
#define WDT_TIMEOUT_2POW12 (4UL << WDT_CTL_TOUTSEL_Pos) /*!< Setting WDT time-out interval to 2^12 * WDT clocks \hideinitializer */
#define WDT_TIMEOUT_2POW14 (5UL << WDT_CTL_TOUTSEL_Pos) /*!< Setting WDT time-out interval to 2^14 * WDT clocks \hideinitializer */
#define WDT_TIMEOUT_2POW16 (6UL << WDT_CTL_TOUTSEL_Pos) /*!< Setting WDT time-out interval to 2^16 * WDT clocks \hideinitializer */
#define WDT_TIMEOUT_2POW18 (7UL << WDT_CTL_TOUTSEL_Pos) /*!< Setting WDT time-out interval to 2^18 * WDT clocks \hideinitializer */
#define WDT_TIMEOUT_2POW20 (8UL << WDT_CTL_TOUTSEL_Pos) /*!< Setting WDT time-out interval to 2^20 * WDT clocks \hideinitializer */
/*---------------------------------------------------------------------------------------------------------*/
/* WDT Reset Delay Period Constant Definitions */
/*---------------------------------------------------------------------------------------------------------*/
#define WDT_RESET_DELAY_1026CLK (0UL << WDT_ALTCTL_RSTDSEL_Pos) /*!< Setting WDT reset delay period to 1026 * WDT clocks \hideinitializer */
#define WDT_RESET_DELAY_130CLK (1UL << WDT_ALTCTL_RSTDSEL_Pos) /*!< Setting WDT reset delay period to 130 * WDT clocks \hideinitializer */
#define WDT_RESET_DELAY_18CLK (2UL << WDT_ALTCTL_RSTDSEL_Pos) /*!< Setting WDT reset delay period to 18 * WDT clocks \hideinitializer */
#define WDT_RESET_DELAY_3CLK (3UL << WDT_ALTCTL_RSTDSEL_Pos) /*!< Setting WDT reset delay period to 3 * WDT clocks \hideinitializer */
/*---------------------------------------------------------------------------------------------------------*/
/* WDT Free Reset Counter Keyword Constant Definitions */
/*---------------------------------------------------------------------------------------------------------*/
#define WDT_RESET_COUNTER_KEYWORD (0x00005AA5UL) /*!< Fill this value to WDT_RSTCNT register to free reset WDT counter \hideinitializer */
/*---------------------------------------------------------------------------------------------------------*/
/* WDT Time-out Handler Constant Definitions */
/*---------------------------------------------------------------------------------------------------------*/
#define WDT_TIMEOUT SystemCoreClock /*!< 1 second time-out \hideinitializer */
#define WDT_TIMEOUT_ERR (-1L) /*!< WDT operation abort due to timeout error \hideinitializer */
/**@}*/ /* end of group WDT_EXPORTED_CONSTANTS */
extern int32_t g_WDT_i32ErrCode;
/** @addtogroup WDT_EXPORTED_FUNCTIONS WDT Exported Functions
@{
*/
/**
* @brief Clear WDT Reset System Flag
*
* @param None
*
* @return None
*
* @details This macro clears WDT time-out reset system flag.
* \hideinitializer
*/
#define WDT_CLEAR_RESET_FLAG() (WDT->CTL = (WDT->CTL & ~(WDT_CTL_IF_Msk | WDT_CTL_WKF_Msk)) | WDT_CTL_RSTF_Msk)
/**
* @brief Clear WDT Time-out Interrupt Flag
*
* @param None
*
* @return None
*
* @details This macro clears WDT time-out interrupt flag.
* \hideinitializer
*/
#define WDT_CLEAR_TIMEOUT_INT_FLAG() (WDT->CTL = (WDT->CTL & ~(WDT_CTL_RSTF_Msk | WDT_CTL_WKF_Msk)) | WDT_CTL_IF_Msk)
/**
* @brief Clear WDT Wake-up Flag
*
* @param None
*
* @return None
*
* @details This macro clears WDT time-out wake-up system flag.
* \hideinitializer
*/
#define WDT_CLEAR_TIMEOUT_WAKEUP_FLAG() (WDT->CTL = (WDT->CTL & ~(WDT_CTL_RSTF_Msk | WDT_CTL_IF_Msk)) | WDT_CTL_WKF_Msk)
/**
* @brief Get WDT Time-out Reset Flag
*
* @param None
*
* @retval 0 WDT time-out reset system did not occur
* @retval 1 WDT time-out reset system occurred
*
* @details This macro indicates system has been reset by WDT time-out reset or not.
* \hideinitializer
*/
#define WDT_GET_RESET_FLAG() ((WDT->CTL & WDT_CTL_RSTF_Msk)? 1UL : 0UL)
/**
* @brief Get WDT Time-out Interrupt Flag
*
* @param None
*
* @retval 0 WDT time-out interrupt did not occur
* @retval 1 WDT time-out interrupt occurred
*
* @details This macro indicates WDT time-out interrupt occurred or not.
* \hideinitializer
*/
#define WDT_GET_TIMEOUT_INT_FLAG() ((WDT->CTL & WDT_CTL_IF_Msk)? 1UL : 0UL)
/**
* @brief Get WDT Time-out Wake-up Flag
*
* @param None
*
* @retval 0 WDT time-out interrupt does not cause CPU wake-up
* @retval 1 WDT time-out interrupt event cause CPU wake-up
*
* @details This macro indicates WDT time-out interrupt event has waked up system or not.
* \hideinitializer
*/
#define WDT_GET_TIMEOUT_WAKEUP_FLAG() ((WDT->CTL & WDT_CTL_WKF_Msk)? 1UL : 0UL)
/**
* @brief Reset WDT Counter
*
* @param None
*
* @return None
*
* @details This macro is used to reset the internal 20-bit WDT up counter value.
* @note If WDT is activated and time-out reset system function is enabled also, user should \n
* reset the 20-bit WDT up counter value to avoid generate WDT time-out reset signal to \n
* reset system before the WDT time-out reset delay period expires.
* \hideinitializer
*/
#define WDT_RESET_COUNTER() (WDT->RSTCNT = WDT_RESET_COUNTER_KEYWORD)
/*---------------------------------------------------------------------------------------------------------*/
/* static inline functions */
/*---------------------------------------------------------------------------------------------------------*/
/* Declare these inline functions here to avoid MISRA C 2004 rule 8.1 error */
__STATIC_INLINE void WDT_Close(void);
__STATIC_INLINE void WDT_EnableInt(void);
__STATIC_INLINE void WDT_DisableInt(void);
/**
* @brief Stop WDT Counting
*
* @param None
*
* @return None
*
* @details This function will stop WDT counting and disable WDT module.
*
* @note This function sets g_WDT_i32ErrCode to WDT_TIMEOUT_ERR if waiting WDT time-out.
*/
__STATIC_INLINE void WDT_Close(void)
{
uint32_t u32TimeOutCount = WDT_TIMEOUT;
g_WDT_i32ErrCode = 0;
WDT->CTL = 0UL;
while (WDT->CTL & WDT_CTL_SYNC_Msk) /* Wait disable WDTEN bit completed, it needs 2 * WDT_CLK. */
{
if (--u32TimeOutCount == 0)
{
g_WDT_i32ErrCode = WDT_TIMEOUT_ERR; /* Time-out error */
break;
}
}
}
/**
* @brief Enable WDT Time-out Interrupt
*
* @param None
*
* @return None
*
* @details This function will enable the WDT time-out interrupt function.
*/
__STATIC_INLINE void WDT_EnableInt(void)
{
WDT->CTL |= WDT_CTL_INTEN_Msk;
}
/**
* @brief Disable WDT Time-out Interrupt
*
* @param None
*
* @return None
*
* @details This function will disable the WDT time-out interrupt function.
*/
__STATIC_INLINE void WDT_DisableInt(void)
{
/* Do not touch another write 1 clear bits */
WDT->CTL &= ~(WDT_CTL_INTEN_Msk | WDT_CTL_RSTF_Msk | WDT_CTL_IF_Msk | WDT_CTL_WKF_Msk);
}
void WDT_Open(uint32_t u32TimeoutInterval, uint32_t u32ResetDelay, uint32_t u32EnableReset, uint32_t u32EnableWakeup);
/**@}*/ /* end of group WDT_EXPORTED_FUNCTIONS */
/**@}*/ /* end of group WDT_Driver */
/**@}*/ /* end of group Standard_Driver */
#ifdef __cplusplus
}
#endif
#endif /* __NU_WDT_H__ */