140 lines
4.3 KiB
C
Executable File
140 lines
4.3 KiB
C
Executable File
/* --COPYRIGHT--,BSD
|
|
* Copyright (c) 2016, 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--*/
|
|
//*****************************************************************************
|
|
//
|
|
// rtc.c - Driver for the rtc Module.
|
|
//
|
|
//*****************************************************************************
|
|
|
|
//*****************************************************************************
|
|
//
|
|
//! \addtogroup rtc_api rtc
|
|
//! @{
|
|
//
|
|
//*****************************************************************************
|
|
|
|
#include "inc/hw_memmap.h"
|
|
|
|
#ifdef __MSP430_HAS_RTC__
|
|
#include "rtc.h"
|
|
|
|
#include <assert.h>
|
|
|
|
void RTC_init(uint16_t baseAddress,
|
|
uint16_t modulo,
|
|
uint16_t clockPredivider)
|
|
{
|
|
HWREG16(baseAddress + OFS_RTCCTL) &= ~(RTCSS_3 | RTCPS_7);
|
|
|
|
HWREG16(baseAddress + OFS_RTCMOD) = modulo;
|
|
HWREG16(baseAddress + OFS_RTCCTL) |= clockPredivider;
|
|
}
|
|
|
|
void RTC_start(uint16_t baseAddress,
|
|
uint16_t clockSource)
|
|
{
|
|
HWREG16(baseAddress + OFS_RTCCTL) &= ~RTCSS_3;
|
|
|
|
#ifdef RTCCKSEL
|
|
HWREG16(SYS_BASE + OFS_SYSCFG2) &= ~RTCCKSEL;
|
|
if(clockSource == RTC_CLOCKSOURCE_ACLK)
|
|
{
|
|
HWREG16(SYS_BASE + OFS_SYSCFG2) |= RTCCKSEL;
|
|
HWREG16(baseAddress + OFS_RTCCTL) |= RTCSS_1;
|
|
}
|
|
else
|
|
{
|
|
HWREG16(baseAddress + OFS_RTCCTL) |= clockSource;
|
|
}
|
|
#else
|
|
HWREG16(baseAddress + OFS_RTCCTL) |= clockSource;
|
|
#endif
|
|
|
|
HWREG16(baseAddress + OFS_RTCCTL) |= RTCSR;
|
|
}
|
|
|
|
void RTC_stop(uint16_t baseAddress)
|
|
{
|
|
HWREG16(baseAddress + OFS_RTCCTL) &= ~RTCSS_3;
|
|
}
|
|
|
|
void RTC_setModulo(uint16_t baseAddress,
|
|
uint16_t modulo)
|
|
{
|
|
HWREG16(baseAddress + OFS_RTCMOD) = modulo;
|
|
}
|
|
|
|
void RTC_enableInterrupt(uint16_t baseAddress,
|
|
uint8_t interruptMask)
|
|
{
|
|
if(interruptMask & RTCIE)
|
|
{
|
|
HWREG16(baseAddress + OFS_RTCCTL) |= RTCIE;
|
|
}
|
|
}
|
|
|
|
void RTC_disableInterrupt(uint16_t baseAddress,
|
|
uint8_t interruptMask)
|
|
{
|
|
if(interruptMask & RTCIE)
|
|
{
|
|
HWREG16(baseAddress + OFS_RTCCTL) &= ~RTCIE;
|
|
}
|
|
}
|
|
|
|
uint8_t RTC_getInterruptStatus(uint16_t baseAddress,
|
|
uint8_t interruptFlagMask)
|
|
{
|
|
uint8_t intStatus = 0;
|
|
|
|
if(interruptFlagMask & RTCIF)
|
|
{
|
|
intStatus = (uint8_t)(HWREG16(baseAddress + OFS_RTCCTL) & RTCIF);
|
|
}
|
|
|
|
return(intStatus);
|
|
}
|
|
|
|
void RTC_clearInterrupt(uint16_t baseAddress,
|
|
int8_t interruptFlagMask)
|
|
{
|
|
HWREG16(baseAddress + OFS_RTCCTL) &= ~RTCIF;
|
|
}
|
|
|
|
#endif
|
|
//*****************************************************************************
|
|
//
|
|
//! Close the doxygen group for rtc_api
|
|
//! @}
|
|
//
|
|
//*****************************************************************************
|