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/**
**************************************************************************
* @file at32f413_pwc.c
* @version v2.0.5
* @date 2022-05-20
* @brief contains all the functions for the pwc 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 PWC
* @brief PWC driver modules
* @{
*/
#ifdef PWC_MODULE_ENABLED
/** @defgroup PWC_private_functions
* @{
*/
/**
* @brief deinitialize the pwc peripheral registers to their default reset values.
* @param none
* @retval none
*/
void pwc_reset(void)
{
crm_periph_reset(CRM_PWC_PERIPH_RESET, TRUE);
crm_periph_reset(CRM_PWC_PERIPH_RESET, FALSE);
}
/**
* @brief enable or disable access to the battery powered domain.
* @param new_state: new state of battery powered domain access.
* this parameter can be: TRUE or FALSE.
* @retval none
*/
void pwc_battery_powered_domain_access(confirm_state new_state)
{
PWC->ctrl_bit.bpwen = new_state;
}
/**
* @brief select the voltage threshold detected by the power voltage detector.
* @param pvm_voltage: select pwc pvm voltage
* this parameter can be one of the following values:
* - PWC_PVM_VOLTAGE_2V3
* - PWC_PVM_VOLTAGE_2V4
* - PWC_PVM_VOLTAGE_2V5
* - PWC_PVM_VOLTAGE_2V6
* - PWC_PVM_VOLTAGE_2V7
* - PWC_PVM_VOLTAGE_2V8
* - PWC_PVM_VOLTAGE_2V9
* @retval none
*/
void pwc_pvm_level_select(pwc_pvm_voltage_type pvm_voltage)
{
PWC->ctrl_bit.pvmsel = pvm_voltage;
}
/**
* @brief enable or disable pwc power voltage monitor (pvm)
* @param new_state: new state of pvm.
* this parameter can be: TRUE or FALSE.
* @retval none
*/
void pwc_power_voltage_monitor_enable(confirm_state new_state)
{
PWC->ctrl_bit.pvmen = new_state;
}
/**
* @brief enable or disable pwc standby wakeup pin
* @param pin_num: choose the wakeup pin.
* this parameter can be be any combination of the following values:
* - PWC_WAKEUP_PIN_1
* @param new_state: new state of the standby wakeup pin.
* this parameter can be one of the following values:
* - TRUE <wakeup pin is used for wake up cpu from standby mode>
* - FALSE <wakeup pin is used for general purpose I/O>
* @retval none
*/
void pwc_wakeup_pin_enable(uint32_t pin_num, confirm_state new_state)
{
if(new_state == TRUE)
{
PWC->ctrlsts |= pin_num;
}
else
{
PWC->ctrlsts &= ~pin_num;
}
}
/**
* @brief clear flag of pwc
* @param pwc_flag: select the pwc flag.
* this parameter can be any combination of the following values:
* - PWC_WAKEUP_FLAG
* - PWC_STANDBY_FLAG
* - note:"PWC_PVM_OUTPUT_FLAG" cannot be choose!this bit is readonly bit,it means the voltage monitoring output state
* @retval none
*/
void pwc_flag_clear(uint32_t pwc_flag)
{
if(pwc_flag & PWC_STANDBY_FLAG)
PWC->ctrl_bit.clsef = TRUE;
if(pwc_flag & PWC_WAKEUP_FLAG)
PWC->ctrl_bit.clswef = TRUE;
}
/**
* @brief get flag of pwc
* @param pwc_flag: select the pwc flag.
* this parameter can be one of the following values:
* - PWC_WAKEUP_FLAG
* - PWC_STANDBY_FLAG
* - PWC_PVM_OUTPUT_FLAG
* @retval state of select flag(SET or RESET).
*/
flag_status pwc_flag_get(uint32_t pwc_flag)
{
flag_status status = RESET;
if ((PWC->ctrlsts & pwc_flag) == RESET)
{
status = RESET;
}
else
{
status = SET;
}
return status;
}
/**
* @brief enter pwc sleep mode
* @param sleep_mode_enter: choose the instruction to enter sleep mode.
* this parameter can be one of the following values:
* - PWC_SLEEP_ENTER_WFI
* - PWC_SLEEP_ENTER_WFE
* @retval none
*/
void pwc_sleep_mode_enter(pwc_sleep_enter_type pwc_sleep_enter)
{
SCB->SCR &= (uint32_t)~0x4;
if(pwc_sleep_enter == PWC_SLEEP_ENTER_WFE)
{
__SEV();
__WFE();
__WFE();
}
else if(pwc_sleep_enter == PWC_SLEEP_ENTER_WFI)
{
__WFI();
}
}
/**
* @brief enter pwc deep-sleep mode
* @param pwc_deep_sleep_enter: choose the instruction to enter deep sleep mode.
* this parameter can be one of the following values:
* - PWC_DEEP_SLEEP_ENTER_WFI
* - PWC_DEEP_SLEEP_ENTER_WFE
* @retval none
*/
void pwc_deep_sleep_mode_enter(pwc_deep_sleep_enter_type pwc_deep_sleep_enter)
{
SCB->SCR |= 0x04;
if(pwc_deep_sleep_enter == PWC_DEEP_SLEEP_ENTER_WFE)
{
__SEV();
__WFE();
__WFE();
}
else if(pwc_deep_sleep_enter == PWC_DEEP_SLEEP_ENTER_WFI)
{
__WFI();
}
SCB->SCR &= (uint32_t)~0x4;
}
/**
* @brief regulate low power consumption in the deep sleep mode
* @param pwc_regulator: set the regulator state.
* this parameter can be one of the following values:
* - PWC_REGULATOR_ON
* - PWC_REGULATOR_LOW_POWER
* @retval none
*/
void pwc_voltage_regulate_set(pwc_regulator_type pwc_regulator)
{
PWC->ctrl_bit.vrsel = pwc_regulator;
}
/**
* @brief enter pwc standby mode
* @param none
* @retval none
*/
void pwc_standby_mode_enter(void)
{
PWC->ctrl_bit.clswef = TRUE;
PWC->ctrl_bit.lpsel = TRUE;
SCB->SCR |= 0x04;
#if defined (__CC_ARM)
__force_stores();
#endif
__WFI();
}
/**
* @}
*/
#endif
/**
* @}
*/
/**
* @}
*/
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