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/* --COPYRIGHT--,BSD
* Copyright (c) 2014, Texas Instruments Incorporated
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * 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.
*
* * Neither the name of Texas Instruments Incorporated 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 OWNER 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.
* --/COPYRIGHT--*/
//*****************************************************************************
//
// wdt_a.h - Driver for the WDT_A Module.
//
//*****************************************************************************
#ifndef __MSP430WARE_WDT_A_H__
#define __MSP430WARE_WDT_A_H__
#include "inc/hw_memmap.h"
#ifdef __MSP430_HAS_WDT_A__
//*****************************************************************************
//
// If building with a C++ compiler, make all of the definitions in this header
// have a C binding.
//
//*****************************************************************************
#ifdef __cplusplus
extern "C"
{
#endif
//*****************************************************************************
//
// The following are values that can be passed to the clockSelect parameter for
// functions: WDT_A_initWatchdogTimer(), and WDT_A_initIntervalTimer().
//
//*****************************************************************************
#define WDT_A_CLOCKSOURCE_SMCLK (WDTSSEL_0)
#define WDT_A_CLOCKSOURCE_ACLK (WDTSSEL_1)
#define WDT_A_CLOCKSOURCE_VLOCLK (WDTSSEL_2)
#define WDT_A_CLOCKSOURCE_XCLK (WDTSSEL_3)
//*****************************************************************************
//
// The following are values that can be passed to the clockDivider parameter
// for functions: WDT_A_initWatchdogTimer(), and WDT_A_initIntervalTimer().
//
//*****************************************************************************
#define WDT_A_CLOCKDIVIDER_2G (WDTIS_0)
#define WDT_A_CLOCKDIVIDER_128M (WDTIS_1)
#define WDT_A_CLOCKDIVIDER_8192K (WDTIS_2)
#define WDT_A_CLOCKDIVIDER_512K (WDTIS_3)
#define WDT_A_CLOCKDIVIDER_32K (WDTIS_4)
#define WDT_A_CLOCKDIVIDER_8192 (WDTIS_5)
#define WDT_A_CLOCKDIVIDER_512 (WDTIS_6)
#define WDT_A_CLOCKDIVIDER_64 (WDTIS_7)
//*****************************************************************************
//
// Prototypes for the APIs.
//
//*****************************************************************************
//*****************************************************************************
//
//! \brief Holds the Watchdog Timer.
//!
//! This function stops the watchdog timer from running, that way no interrupt
//! or PUC is asserted.
//!
//! \param baseAddress is the base address of the WDT_A module.
//!
//! \return None
//
//*****************************************************************************
extern void WDT_A_hold(uint16_t baseAddress);
//*****************************************************************************
//
//! \brief Starts the Watchdog Timer.
//!
//! This function starts the watchdog timer functionality to start counting
//! again.
//!
//! \param baseAddress is the base address of the WDT_A module.
//!
//! \return None
//
//*****************************************************************************
extern void WDT_A_start(uint16_t baseAddress);
//*****************************************************************************
//
//! \brief Resets the timer counter of the Watchdog Timer.
//!
//! This function resets the watchdog timer to 0x0000h.
//!
//! \param baseAddress is the base address of the WDT_A module.
//!
//! \return None
//
//*****************************************************************************
extern void WDT_A_resetTimer(uint16_t baseAddress);
//*****************************************************************************
//
//! \brief Sets the clock source for the Watchdog Timer in watchdog mode.
//!
//! This function sets the watchdog timer in watchdog mode, which will cause a
//! PUC when the timer overflows. When in the mode, a PUC can be avoided with a
//! call to WDT_A_resetTimer() before the timer runs out.
//!
//! \param baseAddress is the base address of the WDT_A module.
//! \param clockSelect is the clock source that the watchdog timer will use.
//! Valid values are:
//! - \b WDT_A_CLOCKSOURCE_SMCLK [Default]
//! - \b WDT_A_CLOCKSOURCE_ACLK
//! - \b WDT_A_CLOCKSOURCE_VLOCLK
//! - \b WDT_A_CLOCKSOURCE_XCLK
//! \n Modified bits are \b WDTSSEL of \b WDTCTL register.
//! \param clockDivider is the divider of the clock source, in turn setting the
//! watchdog timer interval.
//! Valid values are:
//! - \b WDT_A_CLOCKDIVIDER_2G
//! - \b WDT_A_CLOCKDIVIDER_128M
//! - \b WDT_A_CLOCKDIVIDER_8192K
//! - \b WDT_A_CLOCKDIVIDER_512K
//! - \b WDT_A_CLOCKDIVIDER_32K [Default]
//! - \b WDT_A_CLOCKDIVIDER_8192
//! - \b WDT_A_CLOCKDIVIDER_512
//! - \b WDT_A_CLOCKDIVIDER_64
//! \n Modified bits are \b WDTIS and \b WDTHOLD of \b WDTCTL register.
//!
//! \return None
//
//*****************************************************************************
extern void WDT_A_initWatchdogTimer(uint16_t baseAddress,
uint8_t clockSelect,
uint8_t clockDivider);
//*****************************************************************************
//
//! \brief Sets the clock source for the Watchdog Timer in timer interval mode.
//!
//! This function sets the watchdog timer as timer interval mode, which will
//! assert an interrupt without causing a PUC.
//!
//! \param baseAddress is the base address of the WDT_A module.
//! \param clockSelect is the clock source that the watchdog timer will use.
//! Valid values are:
//! - \b WDT_A_CLOCKSOURCE_SMCLK [Default]
//! - \b WDT_A_CLOCKSOURCE_ACLK
//! - \b WDT_A_CLOCKSOURCE_VLOCLK
//! - \b WDT_A_CLOCKSOURCE_XCLK
//! \n Modified bits are \b WDTSSEL of \b WDTCTL register.
//! \param clockDivider is the divider of the clock source, in turn setting the
//! watchdog timer interval.
//! Valid values are:
//! - \b WDT_A_CLOCKDIVIDER_2G
//! - \b WDT_A_CLOCKDIVIDER_128M
//! - \b WDT_A_CLOCKDIVIDER_8192K
//! - \b WDT_A_CLOCKDIVIDER_512K
//! - \b WDT_A_CLOCKDIVIDER_32K [Default]
//! - \b WDT_A_CLOCKDIVIDER_8192
//! - \b WDT_A_CLOCKDIVIDER_512
//! - \b WDT_A_CLOCKDIVIDER_64
//! \n Modified bits are \b WDTIS and \b WDTHOLD of \b WDTCTL register.
//!
//! \return None
//
//*****************************************************************************
extern void WDT_A_initIntervalTimer(uint16_t baseAddress,
uint8_t clockSelect,
uint8_t clockDivider);
//*****************************************************************************
//
// Mark the end of the C bindings section for C++ compilers.
//
//*****************************************************************************
#ifdef __cplusplus
}
#endif
#endif
#endif // __MSP430WARE_WDT_A_H__
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