171 lines
6.1 KiB
C
171 lines
6.1 KiB
C
/**
|
|
* @file xmc4_rtc.c
|
|
* @date 2016-03-09
|
|
*
|
|
* @cond
|
|
*********************************************************************************************************************
|
|
* XMClib v2.1.12 - XMC Peripheral Driver Library
|
|
*
|
|
* Copyright (c) 2015-2017, Infineon Technologies AG
|
|
* 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 the copyright holders 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 HOLDER 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.
|
|
*
|
|
* To improve the quality of the software, users are encouraged to share modifications, enhancements or bug fixes with
|
|
* Infineon Technologies AG dave@infineon.com).
|
|
*********************************************************************************************************************
|
|
*
|
|
* Change History
|
|
* --------------
|
|
*
|
|
* 2015-02-20:
|
|
* - Initial <br>
|
|
*
|
|
* 2016-03-09:
|
|
* - Optimize write only registers
|
|
*
|
|
* @endcond
|
|
*
|
|
*/
|
|
|
|
/**
|
|
* @brief RTC driver for XMC microcontroller family.
|
|
*
|
|
*/
|
|
|
|
/*********************************************************************************************************************
|
|
* HEADER FILES
|
|
*********************************************************************************************************************/
|
|
#include <xmc_rtc.h>
|
|
|
|
#if UC_FAMILY == XMC4
|
|
#include <xmc_scu.h>
|
|
|
|
/*********************************************************************************************************************
|
|
* API IMPLEMENTATION
|
|
*********************************************************************************************************************/
|
|
|
|
/*
|
|
* Enables RTC peripheral for programming its registers
|
|
*/
|
|
void XMC_RTC_Enable(void)
|
|
{
|
|
XMC_SCU_HIB_EnableHibernateDomain();
|
|
}
|
|
|
|
/*
|
|
* Disables RTC peripheral for programming its registers
|
|
*/
|
|
void XMC_RTC_Disable(void)
|
|
{
|
|
/*
|
|
* Empty because disabling the hibernate
|
|
* domain is not done intentionally.
|
|
*/
|
|
}
|
|
|
|
/*
|
|
* Checks RTC peripheral is enabled for programming to its registers
|
|
*/
|
|
bool XMC_RTC_IsEnabled(void)
|
|
{
|
|
return XMC_SCU_HIB_IsHibernateDomainEnabled();
|
|
}
|
|
|
|
/*
|
|
* Initialize the RTC peripheral
|
|
*/
|
|
XMC_RTC_STATUS_t XMC_RTC_Init(const XMC_RTC_CONFIG_t *const config)
|
|
{
|
|
if (XMC_RTC_IsRunning() == false)
|
|
{
|
|
if (XMC_SCU_HIB_IsHibernateDomainEnabled() == false)
|
|
{
|
|
XMC_SCU_HIB_EnableHibernateDomain();
|
|
}
|
|
|
|
XMC_RTC_SetPrescaler(config->prescaler);
|
|
|
|
while ((XMC_SCU_GetMirrorStatus() & SCU_GENERAL_MIRRSTS_RTC_TIM0_Msk) != 0U)
|
|
{
|
|
/* check SCU_MIRRSTS to ensure that no transfer over serial interface is pending */
|
|
}
|
|
RTC->TIM0 = config->time.raw0;
|
|
|
|
while ((XMC_SCU_GetMirrorStatus() & SCU_GENERAL_MIRRSTS_RTC_TIM1_Msk) != 0U)
|
|
{
|
|
/* check SCU_MIRRSTS to ensure that no transfer over serial interface is pending */
|
|
}
|
|
RTC->TIM1 = config->time.raw1;
|
|
|
|
while ((XMC_SCU_GetMirrorStatus() & SCU_GENERAL_MIRRSTS_RTC_ATIM0_Msk) != 0U)
|
|
{
|
|
/* check SCU_MIRRSTS to ensure that no transfer over serial interface is pending */
|
|
}
|
|
RTC->ATIM0 = config->alarm.raw0;
|
|
|
|
while ((XMC_SCU_GetMirrorStatus() & SCU_GENERAL_MIRRSTS_RTC_ATIM1_Msk) != 0U)
|
|
{
|
|
/* check SCU_MIRRSTS to ensure that no transfer over serial interface is pending */
|
|
}
|
|
RTC->ATIM1 = config->alarm.raw1;
|
|
}
|
|
return XMC_RTC_STATUS_OK;
|
|
}
|
|
|
|
/*
|
|
* Enable RTC periodic and alarm event(s)
|
|
*/
|
|
void XMC_RTC_EnableEvent(const uint32_t event)
|
|
{
|
|
while ((XMC_SCU_GetMirrorStatus() & SCU_GENERAL_MIRRSTS_RTC_MSKSR_Msk) != 0U)
|
|
{
|
|
/* check SCU_MIRRSTS to ensure that no transfer over serial interface is pending */
|
|
}
|
|
RTC->MSKSR |= event;
|
|
}
|
|
|
|
/*
|
|
* Disable RTC periodic and alarm event(s)
|
|
*/
|
|
void XMC_RTC_DisableEvent(const uint32_t event)
|
|
{
|
|
while ((XMC_SCU_GetMirrorStatus() & SCU_GENERAL_MIRRSTS_RTC_MSKSR_Msk) != 0U)
|
|
{
|
|
/* check SCU_MIRRSTS to ensure that no transfer over serial interface is pending */
|
|
}
|
|
RTC->MSKSR &= ~event;
|
|
}
|
|
|
|
/*
|
|
* Clear RTC periodic and alarm event(s)
|
|
*/
|
|
void XMC_RTC_ClearEvent(const uint32_t event)
|
|
{
|
|
while ((XMC_SCU_GetMirrorStatus() & SCU_GENERAL_MIRRSTS_RTC_CLRSR_Msk) != 0U)
|
|
{
|
|
/* check SCU_MIRRSTS to ensure that no transfer over serial interface is pending */
|
|
}
|
|
RTC->CLRSR = event;
|
|
}
|
|
|
|
#endif /* UC_FAMILY == XMC4 */
|