You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
99 lines
3.1 KiB
99 lines
3.1 KiB
3 months ago
|
/** @defgroup pwr_file PWR peripheral API
|
||
|
|
* @ingroup peripheral_apis
|
||
|
|
*
|
||
|
|
* @author @htmlonly © @endhtmlonly 2019 Guillaume Revaillot <g.revaillot@gmail.com>
|
||
|
|
*
|
||
|
|
* @brief <b>libopencm3 STM32G0xx Power Control</b>
|
||
|
|
*
|
||
|
|
* @version 1.0.0
|
||
|
|
*
|
||
|
|
* This library supports the power control system for the
|
||
|
|
* STM32G0 series of ARM Cortex Microcontrollers by ST Microelectronics.
|
||
|
|
*
|
||
|
|
* LGPL License Terms @ref lgpl_license
|
||
|
|
*/
|
||
|
|
/*
|
||
|
|
* This file is part of the libopencm3 project.
|
||
|
|
*
|
||
|
|
* This library is free software: you can redistribute it and/or modify
|
||
|
|
* it under the terms of the GNU Lesser General Public License as published by
|
||
|
|
* the Free Software Foundation, either version 3 of the License, or
|
||
|
|
* (at your option) any later version.
|
||
|
|
*
|
||
|
|
* This library is distributed in the hope that it will be useful,
|
||
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
|
|
* GNU Lesser General Public License for more details.
|
||
|
|
*
|
||
|
|
* You should have received a copy of the GNU Lesser General Public License
|
||
|
|
* along with this library. If not, see <http://www.gnu.org/licenses/>.
|
||
|
|
*/
|
||
|
|
/**@{*/
|
||
|
|
#include <libopencm3/stm32/pwr.h>
|
||
|
|
|
||
|
|
/*---------------------------------------------------------------------------*/
|
||
|
|
/** @brief Setup voltage scaling range.
|
||
|
|
*/
|
||
|
|
void pwr_set_vos_scale(enum pwr_vos_scale scale)
|
||
|
|
{
|
||
|
|
uint32_t reg32;
|
||
|
|
|
||
|
|
reg32 = PWR_CR1 & ~(PWR_CR1_VOS_MASK << PWR_CR1_VOS_SHIFT);
|
||
|
|
reg32 |= (scale & PWR_CR1_VOS_MASK) << PWR_CR1_VOS_SHIFT;
|
||
|
|
PWR_CR1 = reg32;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*---------------------------------------------------------------------------*/
|
||
|
|
/** @brief Disable RTC domain write protect.
|
||
|
|
*/
|
||
|
|
void pwr_disable_backup_domain_write_protect(void)
|
||
|
|
{
|
||
|
|
PWR_CR1 |= PWR_CR1_DBP;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*---------------------------------------------------------------------------*/
|
||
|
|
/** @brief Enable RTC domain write protect.
|
||
|
|
*/
|
||
|
|
void pwr_enable_backup_domain_write_protect(void)
|
||
|
|
{
|
||
|
|
PWR_CR1 &= ~PWR_CR1_DBP;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*---------------------------------------------------------------------------*/
|
||
|
|
/** @brief Select the low power mode used in deep sleep.
|
||
|
|
* @param lpms low power mode @ref pwr_cr1_lpms
|
||
|
|
*/
|
||
|
|
void pwr_set_low_power_mode_selection(uint32_t lpms)
|
||
|
|
{
|
||
|
|
uint32_t reg32;
|
||
|
|
|
||
|
|
reg32 = PWR_CR1;
|
||
|
|
reg32 &= ~(PWR_CR1_LPMS_MASK << PWR_CR1_LPMS_SHIFT);
|
||
|
|
PWR_CR1 = (reg32 | (lpms << PWR_CR1_LPMS_SHIFT));
|
||
|
|
}
|
||
|
|
|
||
|
|
/*---------------------------------------------------------------------------*/
|
||
|
|
/** @brief Enable Power Voltage Detector.
|
||
|
|
* @param[in] pvdr_level Power Voltage Detector Rising Threshold voltage @ref pwr_cr2_pvdrt.
|
||
|
|
* @param[in] pvdf_level Power Voltage Detector Falling Threshold voltage @ref pwr_cr2_pvdft.
|
||
|
|
*/
|
||
|
|
void pwr_enable_power_voltage_detect(uint32_t pvdr_level, uint32_t pvdf_level)
|
||
|
|
{
|
||
|
|
uint32_t reg32;
|
||
|
|
|
||
|
|
reg32 = PWR_CR2;
|
||
|
|
reg32 &= ~(PWR_CR2_PVDRT_MASK << PWR_CR2_PVDRT_SHIFT);
|
||
|
|
reg32 &= ~(PWR_CR2_PVDFT_MASK << PWR_CR2_PVDFT_SHIFT);
|
||
|
|
PWR_CR2 = (reg32 | (pvdf_level << PWR_CR2_PVDFT_SHIFT) | (pvdr_level << PWR_CR2_PVDRT_SHIFT) | PWR_CR2_PVDE);
|
||
|
|
}
|
||
|
|
|
||
|
|
/*---------------------------------------------------------------------------*/
|
||
|
|
/** @brief Disable Power Voltage Detector.
|
||
|
|
*/
|
||
|
|
void pwr_disable_power_voltage_detect(void)
|
||
|
|
{
|
||
|
|
PWR_CR2 &= ~PWR_CR2_PVDE;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**@}*/
|