| /* --COPYRIGHT--,BSD | |
| * Copyright (c) 2014, Texas Instruments Incorporated | |
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| * Redistribution and use in source and binary forms, with or without | |
| * modification, are permitted provided that the following conditions | |
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| * * Redistributions in binary form must reproduce the above copyright | |
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| * documentation and/or other materials provided with the distribution. | |
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| * from this software without specific prior written permission. | |
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| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" | |
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| * --/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__ |