2 * Copyright (c) 2014, Texas Instruments Incorporated
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3 * All rights reserved.
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5 * Redistribution and use in source and binary forms, with or without
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6 * modification, are permitted provided that the following conditions
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9 * * Redistributions of source code must retain the above copyright
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10 * notice, this list of conditions and the following disclaimer.
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12 * * Redistributions in binary form must reproduce the above copyright
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13 * notice, this list of conditions and the following disclaimer in the
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14 * documentation and/or other materials provided with the distribution.
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16 * * Neither the name of Texas Instruments Incorporated nor the names of
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17 * its contributors may be used to endorse or promote products derived
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18 * from this software without specific prior written permission.
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20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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21 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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22 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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23 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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24 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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25 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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26 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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27 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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28 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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29 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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30 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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32 //*****************************************************************************
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34 // wdt_a.c - Driver for the wdt_a Module.
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36 //*****************************************************************************
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38 //*****************************************************************************
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40 //! \addtogroup wdt_a_api wdt_a
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43 //*****************************************************************************
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45 #include "inc/hw_regaccess.h"
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46 #include "inc/hw_memmap.h"
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48 #ifdef __MSP430_HAS_WDT_A__
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53 void WDT_A_hold(uint16_t baseAddress)
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56 uint8_t newWDTStatus =
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57 ((HWREG16(baseAddress + OFS_WDTCTL) & 0x00FF) | WDTHOLD);
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59 HWREG16(baseAddress + OFS_WDTCTL) = WDTPW + newWDTStatus;
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62 void WDT_A_start(uint16_t baseAddress)
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65 uint8_t newWDTStatus =
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66 ((HWREG16(baseAddress + OFS_WDTCTL) & 0x00FF) & ~(WDTHOLD));
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68 HWREG16(baseAddress + OFS_WDTCTL) = WDTPW + newWDTStatus;
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71 void WDT_A_resetTimer(uint16_t baseAddress)
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73 // Set Counter Clear bit
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74 uint8_t newWDTStatus =
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75 ((HWREG16(baseAddress + OFS_WDTCTL) & 0x00FF) | WDTCNTCL);
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77 HWREG16(baseAddress + OFS_WDTCTL) = WDTPW + newWDTStatus;
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80 void WDT_A_initWatchdogTimer(uint16_t baseAddress,
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81 uint8_t clockSelect,
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82 uint8_t clockDivider)
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84 HWREG16(baseAddress + OFS_WDTCTL) =
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85 WDTPW + WDTCNTCL + WDTHOLD + clockSelect + clockDivider;
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88 void WDT_A_initIntervalTimer(uint16_t baseAddress,
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89 uint8_t clockSelect,
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90 uint8_t clockDivider)
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92 HWREG16(baseAddress + OFS_WDTCTL) =
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93 WDTPW + WDTCNTCL + WDTHOLD + WDTTMSEL + clockSelect + clockDivider;
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97 //*****************************************************************************
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99 //! Close the doxygen group for wdt_a_api
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102 //*****************************************************************************
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