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103 lines
3.6 KiB
C
103 lines
3.6 KiB
C
/* --COPYRIGHT--,BSD
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* Copyright (c) 2014, Texas Instruments Incorporated
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* * Neither the name of Texas Instruments Incorporated nor the names of
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* its contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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* --/COPYRIGHT--*/
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//*****************************************************************************
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//
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// wdt_a.c - Driver for the wdt_a Module.
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//
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//*****************************************************************************
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//*****************************************************************************
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//
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//! \addtogroup wdt_a_api wdt_a
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//! @{
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//
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//*****************************************************************************
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#include "inc/hw_regaccess.h"
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#include "inc/hw_memmap.h"
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#ifdef __MSP430_HAS_WDT_A__
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#include "wdt_a.h"
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#include <assert.h>
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void WDT_A_hold(uint16_t baseAddress)
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{
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// Set Hold bit
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uint8_t newWDTStatus =
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((HWREG16(baseAddress + OFS_WDTCTL) & 0x00FF) | WDTHOLD);
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HWREG16(baseAddress + OFS_WDTCTL) = WDTPW + newWDTStatus;
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}
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void WDT_A_start(uint16_t baseAddress)
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{
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// Reset Hold bit
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uint8_t newWDTStatus =
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((HWREG16(baseAddress + OFS_WDTCTL) & 0x00FF) & ~(WDTHOLD));
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HWREG16(baseAddress + OFS_WDTCTL) = WDTPW + newWDTStatus;
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}
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void WDT_A_resetTimer(uint16_t baseAddress)
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{
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// Set Counter Clear bit
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uint8_t newWDTStatus =
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((HWREG16(baseAddress + OFS_WDTCTL) & 0x00FF) | WDTCNTCL);
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HWREG16(baseAddress + OFS_WDTCTL) = WDTPW + newWDTStatus;
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}
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void WDT_A_initWatchdogTimer(uint16_t baseAddress,
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uint8_t clockSelect,
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uint8_t clockDivider)
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{
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HWREG16(baseAddress + OFS_WDTCTL) =
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WDTPW + WDTCNTCL + WDTHOLD + clockSelect + clockDivider;
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}
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void WDT_A_initIntervalTimer(uint16_t baseAddress,
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uint8_t clockSelect,
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uint8_t clockDivider)
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{
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HWREG16(baseAddress + OFS_WDTCTL) =
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WDTPW + WDTCNTCL + WDTHOLD + WDTTMSEL + clockSelect + clockDivider;
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}
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#endif
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//*****************************************************************************
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//
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//! Close the doxygen group for wdt_a_api
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//! @}
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//
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//*****************************************************************************
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