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/**
*********************************************************************************
*
* @file ald_bkpc.c
* @brief BKPC module driver.
*
* @version V1.0
* @date 15 Dec 2019
* @author AE Team
* @note
* Change Logs:
* Date Author Notes
* 15 Dec 2019 AE Team The first version
*
* Copyright (C) Shanghai Eastsoft Microelectronics Co. Ltd. All rights reserved.
*
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the License); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an AS IS BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
**********************************************************************************
*/
#include "ald_conf.h"
/** @addtogroup ES32FXXX_ALD
* @{
*/
/** @defgroup BKPC BKPC
* @brief BKPC module driver
* @{
*/
#ifdef ALD_BKPC
/** @defgroup BKPC_Public_Functions BKPC Public Functions
* @{
*/
/** @addtogroup BKPC_Public_Functions_Group1 Peripheral Control functions
* @brief Peripheral Control functions
*
* @verbatim
==============================================================================
##### Peripheral Control functions #####
==============================================================================
[..] This section provides functions allowing to:
(+) ald_bkpc_standby_wakeup_config() API can configure STANDBY wakeup.
(+) ald_bkpc_rtc_clock_config() API can configure RTC clock.
(+) ald_bkpc_tsense_clock_config() API can configure Tsense clock.
@endverbatim
* @{
*/
/**
* @brief Configure standby wakeup in backup field
* @param port: Wakeup port
* @param level: HIGH/LOW.
* @retval None
*/
void ald_bkpc_standby_wakeup_config(bkpc_wakeup_port_t port, bkpc_wakeup_level_t level)
{
assert_param(IS_BKPC_WAKEUP_PORT(port));
assert_param(IS_BKPC_WAKEUP_LEVEL(level));
if (port == PMU_STANDBY_PORT_SEL_NONE) {
BKPC_UNLOCK();
CLEAR_BIT(BKPC->CR, BKPC_CR_WKPEN_MSK);
SET_BIT(BKPC->CR, BKPC_CR_MRST_WKPEN_MSK);
BKPC_LOCK();
return;
}
BKPC_UNLOCK();
SET_BIT(BKPC->CR, BKPC_CR_WKPEN_MSK | BKPC_CR_MRST_WKPEN_MSK);
MODIFY_REG(BKPC->CR, BKPC_CR_WKPS_MSK, port << BKPC_CR_WKPS_POSS);
MODIFY_REG(BKPC->CR, BKPC_CR_WKPOL_MSK, level << BKPC_CR_WKPOL_POS);
BKPC_LOCK();
return;
}
/**
* @brief Configure rtc clock in backup field
* @param clock: Clock
* @retval None
*/
void ald_bkpc_rtc_clock_config(bkpc_preh_clk_t clock)
{
assert_param(IS_BKPC_PREH_CLOCK(clock));
BKPC_UNLOCK();
MODIFY_REG(BKPC->PCCR, BKPC_PCCR_RTCCS_MSK, clock << BKPC_PCCR_RTCCS_POSS);
BKPC_LOCK();
return;
}
/**
* @brief Configure tsense clock in backup field
* @param clock: Clock
* @retval None
*/
void ald_bkpc_tsense_clock_config(bkpc_preh_clk_t clock)
{
assert_param(IS_BKPC_PREH_CLOCK(clock));
BKPC_UNLOCK();
MODIFY_REG(BKPC->PCCR, BKPC_PCCR_TSENSECS_MSK, clock << BKPC_PCCR_TSENSECS_POSS);
BKPC_LOCK();
return;
}
/**
* @}
*/
/** @addtogroup BKPC_Public_Functions_Group2 IO operation functions
* @brief IO operation functions
*
* @verbatim
==============================================================================
##### IO operation functions #####
==============================================================================
[..] This section provides functions allowing to:
(+) ald_bkpc_write_ram() API can write data in backup ram.
(+) ald_bkpc_read_ram() API can read data from backup ram.
@endverbatim
* @{
*/
/**
* @brief Write data into backup ram.
* @param idx: Index of backup word.
* @param value: Value which will be written to backup ram.
* @retval None
*/
void ald_bkpc_write_ram(uint8_t idx, uint32_t value)
{
assert_param(IS_BKPC_RAM_IDX(idx));
RTC_UNLOCK();
WRITE_REG(RTC->BKPR[idx], value);
RTC_LOCK();
return;
}
/**
* @brief Read data from backup ram.
* @param idx: Index of backup word.
* @retval The data.
*/
uint32_t ald_bkpc_read_ram(uint8_t idx)
{
assert_param(IS_BKPC_RAM_IDX(idx));
return READ_REG(RTC->BKPR[idx]);
}
/**
* @}
*/
/**
* @}
*/
#endif /* ALD_BKPC */
/**
* @}
*/
/**
* @}
*/
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