rt-thread-official/bsp/apollo2/libraries/drivers/hal/am_hal_reset.h

//*****************************************************************************
//
//  am_hal_reset.h
//! @file
//!
//! @brief Hardware abstraction layer for the Reset Generator module.
//!
//! @addtogroup wdt2 Watchdog Timer (RSTGEN)
//! @ingroup apollo2hal
//! @{
//
//*****************************************************************************

//*****************************************************************************
//
// Copyright (c) 2017, Ambiq Micro
// All rights reserved.
// 
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
// 
// 1. Redistributions of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
// 
// 2. Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
// 
// 3. Neither the name of the copyright holder nor the names of its
// contributors may be used to endorse or promote products derived from this
// software without specific prior written permission.
// 
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.
//
// This is part of revision 1.2.11 of the AmbiqSuite Development Package.
//
//*****************************************************************************
#ifndef AM_HAL_RSTGEN_H
#define AM_HAL_RSTGEN_H

//*****************************************************************************
//
//! @name Reset Generator Configuration
//! @brief These macros may be used to set the reset generator's configuration.
//! @{
//
//*****************************************************************************
#define AM_HAL_RESET_CFG_WDT_RESET_ENABLE       (AM_REG_RSTGEN_CFG_WDREN(1))
// Brown out high (2.1v) reset enable.
#define AM_HAL_RESET_CFG_BOD_HIGH_RESET_ENABLE  (AM_REG_RSTGEN_CFG_BODHREN(1))
//! @}

//*****************************************************************************
//
//! @name Reset Generator Status Bit Masks
//! @brief These macros may be used to determine which type(s) of resets have
//!        been seen.
//! @{
//
//*****************************************************************************
// Reset was initiated by a Watchdog Timer Reset.
#define AM_HAL_RESET_STAT_WDT (AM_REG_RSTGEN_STAT_WDRSTAT_M)

// Reset was a initiated by Debugger Reset.
#define AM_HAL_RESET_STAT_DEBUG (AM_REG_RSTGEN_STAT_DBGRSTAT_M)

// Reset was a initiated by Software POI Reset.
#define AM_HAL_RESET_STAT_POI (AM_REG_RSTGEN_STAT_POIRSTAT_M)

// Reset was a initiated by Software POR or AIRCR Reset.
#define AM_HAL_RESET_STAT_SOFTWARE (AM_REG_RSTGEN_STAT_SWRSTAT_M)

// Reset was initiated by a Brown-Out Reset.
#define AM_HAL_RESET_STAT_BOD (AM_REG_RSTGEN_STAT_BORSTAT_M)

// Reset was initiated by a Power Cycle
#define AM_HAL_RESET_STAT_POWER_CYCLE (AM_REG_RSTGEN_STAT_PORSTAT_M)

// Reset was initiated by an External Reset.
#define AM_HAL_RESET_STAT_EXTERNAL (AM_REG_RSTGEN_STAT_EXRSTAT_M)
//! @}

#ifdef __cplusplus
extern "C"
{
#endif
//*****************************************************************************
//
// External function definitions
//
//*****************************************************************************
extern void am_hal_reset_init(uint32_t ui32Config);
extern void am_hal_reset_por(void);
extern void am_hal_reset_poi(void);
extern uint32_t am_hal_reset_status_get(void);
extern void am_hal_reset_status_clear(void);

#ifdef __cplusplus
}
#endif

#endif // AM_HAL_RSTGEN_H

//*****************************************************************************
//
// End Doxygen group.
//! @}
//
//*****************************************************************************