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/**
**************************************************************************
* @file at32f413_rtc.c
* @version v2.0.5
* @date 2022-05-20
* @brief contains all the functions for the rtc firmware library
**************************************************************************
* Copyright notice & Disclaimer
*
* The software Board Support Package (BSP) that is made available to
* download from Artery official website is the copyrighted work of Artery.
* Artery authorizes customers to use, copy, and distribute the BSP
* software and its related documentation for the purpose of design and
* development in conjunction with Artery microcontrollers. Use of the
* software is governed by this copyright notice and the following disclaimer.
*
* THIS SOFTWARE IS PROVIDED ON "AS IS" BASIS WITHOUT WARRANTIES,
* GUARANTEES OR REPRESENTATIONS OF ANY KIND. ARTERY EXPRESSLY DISCLAIMS,
* TO THE FULLEST EXTENT PERMITTED BY LAW, ALL EXPRESS, IMPLIED OR
* STATUTORY OR OTHER WARRANTIES, GUARANTEES OR REPRESENTATIONS,
* INCLUDING BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT.
*
**************************************************************************
*/
#include "at32f413_conf.h"
/** @addtogroup AT32F413_periph_driver
* @{
*/
/** @defgroup RTC
* @brief RTC driver modules
* @{
*/
#ifdef RTC_MODULE_ENABLED
/** @defgroup RTC_private_functions
* @{
*/
/**
* @brief rtc counter set
* @param counter_value (0x0000_0000 ~ 0xFFFF_FFFF)
* @retval none
*/
void rtc_counter_set(uint32_t counter_value)
{
/* enter rtc config mode */
RTC->ctrll = 0x003F;
/* set rtc counter */
RTC->cnth_bit.cnt = (uint16_t)(counter_value >> 16);
RTC->cntl_bit.cnt = (uint16_t)(counter_value & 0x0000FFFF);
/* exit rtc config mode */
RTC->ctrll = 0x000F;
}
/**
* @brief rtc counter get
* @param none
* @retval rtc counter
*/
uint32_t rtc_counter_get(void)
{
uint32_t cnt = 0;
cnt = RTC->cnth;
cnt = (cnt << 16) | RTC->cntl;
return cnt;
}
/**
* @brief rtc divider set
* @param div_value (0x0000_0000 ~ 0xFFFF_FFFF)
* @retval none
*/
void rtc_divider_set(uint32_t div_value)
{
/* enter rtc config mode */
RTC->ctrll = 0x003F;
/* set rtc divider */
RTC->divh_bit.div = (uint16_t)(div_value >> 16);
RTC->divl_bit.div = (uint16_t)(div_value & 0x0000FFFF);
/* exit rtc config mode */
RTC->ctrll = 0x000F;
}
/**
* @brief rtc divider get
* @param none
* @retval rtc counter
*/
uint32_t rtc_divider_get(void)
{
uint32_t div = 0;
div = RTC->divcnth;
div = (div << 16) | RTC->divcntl;
return div;
}
/**
* @brief rtc alarm value set
* @param alarm_value (0x0000_0000 ~ 0xFFFF_FFFF)
* @retval none
*/
void rtc_alarm_set(uint32_t alarm_value)
{
/* enter rtc config mode */
RTC->ctrll = 0x003F;
/* set rtc alarm value */
RTC->tah_bit.ta = (uint16_t)(alarm_value >> 16);
RTC->tal_bit.ta = (uint16_t)(alarm_value & 0x0000FFFF);
/* exit rtc config mode */
RTC->ctrll = 0x000F;
}
/**
* @brief rtc interrupt enable
* @param source
* this parameter can be any combination of the following values:
* - RTC_TS_INT: time second interrupt.
* - RTC_TA_INT: time alarm interrupt.
* - RTC_OVF_INT: overflow interrupt.
* @param new_state (TRUE or FALSE)
* @retval none
*/
void rtc_interrupt_enable(uint16_t source, confirm_state new_state)
{
if(new_state == FALSE)
{
RTC->ctrlh &= ~source;
}
else
{
RTC->ctrlh |= source;
}
}
/**
* @brief rtc flag get
* @param flag
* this parameter can be one of the following values:
* - RTC_TS_FLAG: time second flag.
* - RTC_TA_FLAG: time alarm flag.
* - RTC_OVF_FLAG: overflow flag.
* - RTC_UPDF_FLAG: rtc update finish flag.
* - RTC_CFGF_FLAG: rtc configuration finish flag.
* @retval state of rtc flag
*/
flag_status rtc_flag_get(uint16_t flag)
{
flag_status status = RESET;
if ((RTC->ctrll & flag) != (uint16_t)RESET)
{
status = SET;
}
else
{
status = RESET;
}
return status;
}
/**
* @brief rtc flag clear
* @param interrupt_flag
* this parameter can be any combination of the following values:
* - RTC_TS_FLAG: time second flag.
* - RTC_TA_FLAG: time alarm flag.
* - RTC_OVF_FLAG: overflow flag.
* - RTC_CFGF_FLAG: rtc configuration finish flag.
* @retval none
*/
void rtc_flag_clear(uint16_t flag)
{
RTC->ctrll = ~(flag | 0x10) | (RTC->ctrll_bit.cfgen << 4);
}
/**
* @brief rtc wait configuration finish
* @param none
* @retval none
*/
void rtc_wait_config_finish(void)
{
while (RTC->ctrll_bit.cfgf == 0);
}
/**
* @brief rtc wait update finish
* @param none
* @retval none
*/
void rtc_wait_update_finish(void)
{
while (RTC->ctrll_bit.updf == 0);
}
/**
* @}
*/
#endif
/**
* @}
*/
/**
* @}
*/
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