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/**
*********************************************************************************
*
* @file ald_pmu.c
* @brief PMU module driver.
*
* @version V1.0
* @date 04 Dec 2019
* @author AE Team
* @note
* Change Logs:
* Date Author Notes
* 04 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 PMU PMU
* @brief PMU module driver
* @{
*/
#ifdef ALD_PMU
/** @defgroup PMU_Private_Functions PMU Private Functions
* @{
*/
/**
* @brief PMU module interrupt handler
* @retval None
*/
void ald_lvd_irq_handler(void)
{
SYSCFG_UNLOCK();
SET_BIT(PMU->LVDCR, PMU_LVDCR_LVDCIF_MSK);
SYSCFG_LOCK();
return;
}
/**
* @}
*/
/** @defgroup PMU_Public_Functions PMU Public Functions
* @{
*/
/** @addtogroup PMU_Public_Functions_Group1 Low Power Mode
* @brief Low power mode select functions
*
* @verbatim
==============================================================================
##### Low power mode select functions #####
==============================================================================
[..] This section provides functions allowing to:
(+) Enter stop1 mode.
(+) Enter stop2 mode.
(+) Enter standby mode.
(+) Get wakeup status.
(+) Clear wakeup status.
@endverbatim
* @{
*/
/**
* @brief Enter stop1 mode
* @retval None
*/
void ald_pmu_stop1_enter(void)
{
int cnt = 4000;
SYSCFG_UNLOCK();
CLEAR_BIT(PMU->CR0, PMU_CR0_MTSTOP_MSK);
#ifdef ES32F336x /* MCU Series: ES32F336x */
SET_BIT(PMU->CR0, PMU_CR0_LPSTOP_MSK);
#endif
MODIFY_REG(PMU->CR1, PMU_CR1_LDO18MOD_MSK, PMU_LDO_18_HOLD << PMU_CR1_LDO18MOD_POSS);
MODIFY_REG(PMU->CR0, PMU_CR0_LPM_MSK, PMU_LP_STOP1 << PMU_CR0_LPM_POSS);
SYSCFG_LOCK();
while ((!(PMU->CR1 & PMU_CR1_LDO18RDY_MSK)) && (cnt--));
SysTick->CTRL &= ~SysTick_CTRL_ENABLE_Msk;
SCB->SCR |= SCB_SCR_SLEEPDEEP_Msk;
__WFI();
SysTick->CTRL |= SysTick_CTRL_ENABLE_Msk;
return;
}
/**
* @brief Enter stop2 mode
* @retval None
*/
void ald_pmu_stop2_enter(void)
{
int cnt = 4000;
SYSCFG_UNLOCK();
SET_BIT(PMU->CR0, PMU_CR0_MTSTOP_MSK);
#ifdef ES32F336x /* MCU Series: ES32F336x */
SET_BIT(PMU->CR0, PMU_CR0_LPSTOP_MSK);
#endif
MODIFY_REG(PMU->CR1, PMU_CR1_LDO18MOD_MSK, PMU_LDO_18_HOLD << PMU_CR1_LDO18MOD_POSS);
MODIFY_REG(PMU->CR0, PMU_CR0_LPM_MSK, PMU_LP_STOP2 << PMU_CR0_LPM_POSS);
SYSCFG_LOCK();
while ((!(PMU->CR1 & PMU_CR1_LDO18RDY_MSK)) && (cnt--));
SysTick->CTRL &= ~SysTick_CTRL_ENABLE_Msk;
SCB->SCR |= SCB_SCR_SLEEPDEEP_Msk;
__WFI();
SysTick->CTRL |= SysTick_CTRL_ENABLE_Msk;
return;
}
/**
* @brief Enter standby mode
* @param port: The port whick wake up the standby mode.
* @param level: Wakeup level.
* @retval None
*/
void ald_pmu_standby_enter(bkpc_wakeup_port_t port, bkpc_wakeup_level_t level)
{
ald_bkpc_standby_wakeup_config(port, level);
SYSCFG_UNLOCK();
MODIFY_REG(PMU->CR0, PMU_CR0_LPM_MSK, PMU_LP_STANDBY << PMU_CR0_LPM_POSS);
SYSCFG_LOCK();
SysTick->CTRL &= ~SysTick_CTRL_ENABLE_Msk;
SCB->SCR |= SCB_SCR_SLEEPDEEP_Msk;
__WFI();
SysTick->CTRL |= SysTick_CTRL_ENABLE_Msk;
return;
}
/**
* @brief Enable/Disable LDO(1.2V) hold mode. It must be disabled in STOP1.
* @param state: Enable/Disable
* @retval None
*/
void ald_pmu_ldo_12_config(type_func_t state)
{
assert_param(IS_FUNC_STATE(state));
SYSCFG_UNLOCK();
if (state)
SET_BIT(PMU->CR0, PMU_CR0_MTSTOP_MSK);
else
CLEAR_BIT(PMU->CR0, PMU_CR0_MTSTOP_MSK);
SYSCFG_LOCK();
return;
}
/**
* @brief Configure LDO(1.8V) mode
* @param mode: Mode of the LDO(1.8V)
* @retval None
*/
void ald_pmu_ldo_18_config(pmu_ldo_18_mode_t mode)
{
uint32_t cnt = 4000;
assert_param(IS_PMU_LDO18_MODE(mode));
SYSCFG_UNLOCK();
MODIFY_REG(PMU->CR1, PMU_CR1_LDO18MOD_MSK, mode << PMU_CR1_LDO18MOD_POSS);
SYSCFG_LOCK();
while ((!(PMU->CR1 & PMU_CR1_LDO18RDY_MSK)) && (cnt--));
return;
}
#ifdef ES32F336x /* MCU Series: ES32F336x */
/**
* @brief Configures low power mode. The system clock must
* be less than 2MHz. Such as: LOSC or LRC.
* @param vol: LDO output voltage select in low power mode.
* @param state: New state, ENABLE/DISABLE;
* @retval None
*/
void ald_pmu_lprun_config(pmu_ldo_lpmode_output_t vol, type_func_t state)
{
assert_param(IS_FUNC_STATE(state));
SYSCFG_UNLOCK();
if (state) {
assert_param(IS_PMU_LDO_LPMODE_OUTPUT(vol));
MODIFY_REG(PMU->CR0, PMU_CR0_LPVS_MSK, vol << PMU_CR0_LPVS_POSS);
SET_BIT(PMU->CR0, PMU_CR0_LPRUN_MSK);
}
else {
CLEAR_BIT(PMU->CR0, PMU_CR0_LPRUN_MSK);
}
SYSCFG_LOCK();
return;
}
#endif
/**
* @brief Get wakup status.
* @param sr: Status bit.
* @retval Status.
*/
flag_status_t ald_pmu_get_status(pmu_status_t sr)
{
assert_param(IS_PMU_STATUS(sr));
if (READ_BIT(PMU->SR, sr))
return SET;
return RESET;
}
/**
* @brief Clear wakup status.
* @param sr: Status bit.
* @retval None
*/
void ald_pmu_clear_status(pmu_status_t sr)
{
assert_param(IS_PMU_STATUS(sr));
SYSCFG_UNLOCK();
if (sr == PMU_SR_WUF)
SET_BIT(PMU->CR0, PMU_CR0_CWUF_MSK);
else if (sr == PMU_SR_STANDBYF)
SET_BIT(PMU->CR0, PMU_CR0_CSTANDBYF_MSK);
else
;/* do nothing */
SYSCFG_LOCK();
return;
}
/**
* @brief Configure peripheral power
* @param perh: The peripheral
* @param state: ENABLE/DISABLE
* @retval None
*/
void ald_pmu_perh_power_config(pmu_perh_power_t perh, type_func_t state)
{
assert_param(IS_PMU_PERH_POWER(perh));
assert_param(IS_FUNC_STATE(state));
SYSCFG_UNLOCK();
if (state)
SET_BIT(PMU->PWRCR, perh);
else
CLEAR_BIT(PMU->PWRCR, perh);
SYSCFG_LOCK();
return;
}
/**
* @}
*/
/** @addtogroup PMU_Public_Functions_Group2 LVD Configure
* @brief LVD configure functions
*
* @verbatim
==============================================================================
##### LVD configure functions #####
==============================================================================
[..] This section provides functions allowing to:
(+) Configure lvd parameters.
@endverbatim
* @{
*/
/**
* @brief Configure lvd using specified parameters.
* @param sel: LVD threshold voltage.
* @param mode: LVD trigger mode.
* @param state: New state, ENABLE/DISABLE;
* @retval None
*/
void ald_pmu_lvd_config(pmu_lvd_voltage_sel_t sel, pmu_lvd_trigger_mode_t mode, type_func_t state)
{
assert_param(IS_FUNC_STATE(state));
SYSCFG_UNLOCK();
if (state) {
assert_param(IS_PMU_LVD_VOL_SEL(sel));
assert_param(IS_PMU_LVD_TRIGGER_MODE(mode));
MODIFY_REG(PMU->LVDCR, PMU_LVDCR_LVDS_MSK, sel << PMU_LVDCR_LVDS_POSS);
MODIFY_REG(PMU->LVDCR, PMU_LVDCR_LVIFS_MSK, mode << PMU_LVDCR_LVIFS_POSS);
SET_BIT(PMU->LVDCR, PMU_LVDCR_LVDFLT_MSK);
SET_BIT(PMU->LVDCR, PMU_LVDCR_LVDCIF_MSK);
SET_BIT(PMU->LVDCR, PMU_LVDCR_LVDIE_MSK);
SET_BIT(PMU->LVDCR, PMU_LVDCR_LVDEN_MSK);
}
else {
SET_BIT(PMU->LVDCR, PMU_LVDCR_LVDCIF_MSK);
CLEAR_BIT(PMU->LVDCR, PMU_LVDCR_LVDIE_MSK);
CLEAR_BIT(PMU->LVDCR, PMU_LVDCR_LVDEN_MSK);
}
SYSCFG_LOCK();
return;
}
/**
* @}
*/
/**
* @}
*/
#endif /* ALD_PMU */
/**
* @}
*/
/**
* @}
*/
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